1 // dear imgui, v1.84 WIP
2 // (drawing and font code)
3
4 /*
5
6 Index of this file:
7
8 // [SECTION] STB libraries implementation
9 // [SECTION] Style functions
10 // [SECTION] ImDrawList
11 // [SECTION] ImDrawListSplitter
12 // [SECTION] ImDrawData
13 // [SECTION] Helpers ShadeVertsXXX functions
14 // [SECTION] ImFontConfig
15 // [SECTION] ImFontAtlas
16 // [SECTION] ImFontAtlas glyph ranges helpers
17 // [SECTION] ImFontGlyphRangesBuilder
18 // [SECTION] ImFont
19 // [SECTION] ImGui Internal Render Helpers
20 // [SECTION] Decompression code
21 // [SECTION] Default font data (ProggyClean.ttf)
22
23 */
24
25 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
26 #define _CRT_SECURE_NO_WARNINGS
27 #endif
28
29 #include "imgui.h"
30 #ifndef IMGUI_DISABLE
31
32 #ifndef IMGUI_DEFINE_MATH_OPERATORS
33 #define IMGUI_DEFINE_MATH_OPERATORS
34 #endif
35
36 #include "imgui_internal.h"
37 #ifdef IMGUI_ENABLE_FREETYPE
38 #include "misc/freetype/imgui_freetype.h"
39 #endif
40
41 #include <stdio.h> // vsnprintf, sscanf, printf
42 #if !defined(alloca)
43 #if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
44 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
45 #elif defined(_WIN32)
46 #include <malloc.h> // alloca
47 #if !defined(alloca)
48 #define alloca _alloca // for clang with MS Codegen
49 #endif
50 #else
51 #include <stdlib.h> // alloca
52 #endif
53 #endif
54
55 // Visual Studio warnings
56 #ifdef _MSC_VER
57 #pragma warning (disable: 4127) // condition expression is constant
58 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
59 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
60 #pragma warning (disable: 6255) // [Static Analyzer] _alloca indicates failure by raising a stack overflow exception. Consider using _malloca instead.
61 #pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
62 #pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
63 #endif
64
65 // Clang/GCC warnings with -Weverything
66 #if defined(__clang__)
67 #if __has_warning("-Wunknown-warning-option")
68 #pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
69 #endif
70 #if __has_warning("-Walloca")
71 #pragma clang diagnostic ignored "-Walloca" // warning: use of function '__builtin_alloca' is discouraged
72 #endif
73 #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
74 #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
75 #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
76 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
77 #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
78 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
79 #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
80 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
81 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
82 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
83 #elif defined(__GNUC__)
84 #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
85 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
86 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
87 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
88 #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
89 #pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
90 #endif
91
92 //-------------------------------------------------------------------------
93 // [SECTION] STB libraries implementation
94 //-------------------------------------------------------------------------
95
96 // Compile time options:
97 //#define IMGUI_STB_NAMESPACE ImStb
98 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
99 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
100 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
101 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
102
103 #ifdef IMGUI_STB_NAMESPACE
104 namespace IMGUI_STB_NAMESPACE
105 {
106 #endif
107
108 #ifdef _MSC_VER
109 #pragma warning (push)
110 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
111 #pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'.
112 #pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read.
113 #pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did.
114 #endif
115
116 #if defined(__clang__)
117 #pragma clang diagnostic push
118 #pragma clang diagnostic ignored "-Wunused-function"
119 #pragma clang diagnostic ignored "-Wmissing-prototypes"
120 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
121 #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
122 #endif
123
124 #if defined(__GNUC__)
125 #pragma GCC diagnostic push
126 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
127 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
128 #endif
129
130 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
131 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
132 #define STBRP_STATIC
133 #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
134 #define STBRP_SORT ImQsort
135 #define STB_RECT_PACK_IMPLEMENTATION
136 #endif
137 #ifdef IMGUI_STB_RECT_PACK_FILENAME
138 #include IMGUI_STB_RECT_PACK_FILENAME
139 #else
140 #include "imstb_rectpack.h"
141 #endif
142 #endif
143
144 #ifdef IMGUI_ENABLE_STB_TRUETYPE
145 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
146 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
147 #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
148 #define STBTT_free(x,u) ((void)(u), IM_FREE(x))
149 #define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
150 #define STBTT_fmod(x,y) ImFmod(x,y)
151 #define STBTT_sqrt(x) ImSqrt(x)
152 #define STBTT_pow(x,y) ImPow(x,y)
153 #define STBTT_fabs(x) ImFabs(x)
154 #define STBTT_ifloor(x) ((int)ImFloorSigned(x))
155 #define STBTT_iceil(x) ((int)ImCeil(x))
156 #define STBTT_STATIC
157 #define STB_TRUETYPE_IMPLEMENTATION
158 #else
159 #define STBTT_DEF extern
160 #endif
161 #ifdef IMGUI_STB_TRUETYPE_FILENAME
162 #include IMGUI_STB_TRUETYPE_FILENAME
163 #else
164 #include "imstb_truetype.h"
165 #endif
166 #endif
167 #endif // IMGUI_ENABLE_STB_TRUETYPE
168
169 #if defined(__GNUC__)
170 #pragma GCC diagnostic pop
171 #endif
172
173 #if defined(__clang__)
174 #pragma clang diagnostic pop
175 #endif
176
177 #if defined(_MSC_VER)
178 #pragma warning (pop)
179 #endif
180
181 #ifdef IMGUI_STB_NAMESPACE
182 } // namespace ImStb
183 using namespace IMGUI_STB_NAMESPACE;
184 #endif
185
186 //-----------------------------------------------------------------------------
187 // [SECTION] Style functions
188 //-----------------------------------------------------------------------------
189
StyleColorsDark(ImGuiStyle * dst)190 void ImGui::StyleColorsDark(ImGuiStyle* dst)
191 {
192 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
193 ImVec4* colors = style->Colors;
194
195 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
196 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
197 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
198 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
199 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
200 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
201 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
202 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
203 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
204 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
205 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
206 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
207 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
208 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
209 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
210 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
211 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
212 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
213 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
214 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
215 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
216 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
217 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
218 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
219 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
220 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
221 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
222 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
223 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
224 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
225 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
226 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
227 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
228 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
229 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
230 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
231 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
232 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
233 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_HeaderActive] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
234 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
235 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
236 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
237 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
238 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
239 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
240 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
241 colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
242 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
243 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
244 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
245 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
246 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
247 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
248 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
249 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
250 }
251
StyleColorsClassic(ImGuiStyle * dst)252 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
253 {
254 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
255 ImVec4* colors = style->Colors;
256
257 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
258 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
259 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
260 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
261 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
262 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
263 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
264 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
265 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
266 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
267 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
268 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
269 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
270 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
271 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
272 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
273 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
274 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
275 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
276 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
277 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
278 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
279 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
280 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
281 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
282 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
283 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
284 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
285 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
286 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
287 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
288 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
289 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
290 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
291 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
292 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
293 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
294 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
295 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
296 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
297 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
298 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
299 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
300 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
301 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
302 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
303 colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
304 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
305 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
306 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
307 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
308 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
309 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
310 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
311 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
312 }
313
314 // Those light colors are better suited with a thicker font than the default one + FrameBorder
StyleColorsLight(ImGuiStyle * dst)315 void ImGui::StyleColorsLight(ImGuiStyle* dst)
316 {
317 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
318 ImVec4* colors = style->Colors;
319
320 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
321 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
322 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
323 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
324 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
325 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
326 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
327 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
328 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
329 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
330 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
331 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
332 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
333 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
334 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
335 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
336 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
337 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
338 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
339 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
340 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
341 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
342 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
343 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
344 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
345 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
346 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
347 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
348 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
349 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
350 colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
351 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
352 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
353 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
354 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
355 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
356 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
357 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
358 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
359 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
360 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
361 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
362 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
363 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
364 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
365 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
366 colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
367 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
368 colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
369 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
370 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
371 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
372 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
373 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
374 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
375 }
376
377 //-----------------------------------------------------------------------------
378 // [SECTION] ImDrawList
379 //-----------------------------------------------------------------------------
380
ImDrawListSharedData()381 ImDrawListSharedData::ImDrawListSharedData()
382 {
383 memset(this, 0, sizeof(*this));
384 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
385 {
386 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
387 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
388 }
389 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
390 }
391
SetCircleTessellationMaxError(float max_error)392 void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
393 {
394 if (CircleSegmentMaxError == max_error)
395 return;
396
397 IM_ASSERT(max_error > 0.0f);
398 CircleSegmentMaxError = max_error;
399 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
400 {
401 const float radius = (float)i;
402 CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : 0);
403 }
404 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
405 }
406
407 // Initialize before use in a new frame. We always have a command ready in the buffer.
_ResetForNewFrame()408 void ImDrawList::_ResetForNewFrame()
409 {
410 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
411 // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
412 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
413 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
414 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
415
416 CmdBuffer.resize(0);
417 IdxBuffer.resize(0);
418 VtxBuffer.resize(0);
419 Flags = _Data->InitialFlags;
420 memset(&_CmdHeader, 0, sizeof(_CmdHeader));
421 _VtxCurrentIdx = 0;
422 _VtxWritePtr = NULL;
423 _IdxWritePtr = NULL;
424 _ClipRectStack.resize(0);
425 _TextureIdStack.resize(0);
426 _Path.resize(0);
427 _Splitter.Clear();
428 CmdBuffer.push_back(ImDrawCmd());
429 _FringeScale = 1.0f;
430 }
431
_ClearFreeMemory()432 void ImDrawList::_ClearFreeMemory()
433 {
434 CmdBuffer.clear();
435 IdxBuffer.clear();
436 VtxBuffer.clear();
437 Flags = ImDrawListFlags_None;
438 _VtxCurrentIdx = 0;
439 _VtxWritePtr = NULL;
440 _IdxWritePtr = NULL;
441 _ClipRectStack.clear();
442 _TextureIdStack.clear();
443 _Path.clear();
444 _Splitter.ClearFreeMemory();
445 }
446
CloneOutput() const447 ImDrawList* ImDrawList::CloneOutput() const
448 {
449 ImDrawList* dst = IM_NEW(ImDrawList(_Data));
450 dst->CmdBuffer = CmdBuffer;
451 dst->IdxBuffer = IdxBuffer;
452 dst->VtxBuffer = VtxBuffer;
453 dst->Flags = Flags;
454 return dst;
455 }
456
AddDrawCmd()457 void ImDrawList::AddDrawCmd()
458 {
459 ImDrawCmd draw_cmd;
460 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
461 draw_cmd.TextureId = _CmdHeader.TextureId;
462 draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
463 draw_cmd.IdxOffset = IdxBuffer.Size;
464
465 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
466 CmdBuffer.push_back(draw_cmd);
467 }
468
469 // Pop trailing draw command (used before merging or presenting to user)
470 // Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
_PopUnusedDrawCmd()471 void ImDrawList::_PopUnusedDrawCmd()
472 {
473 if (CmdBuffer.Size == 0)
474 return;
475 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
476 if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
477 CmdBuffer.pop_back();
478 }
479
AddCallback(ImDrawCallback callback,void * callback_data)480 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
481 {
482 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
483 IM_ASSERT(curr_cmd->UserCallback == NULL);
484 if (curr_cmd->ElemCount != 0)
485 {
486 AddDrawCmd();
487 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
488 }
489 curr_cmd->UserCallback = callback;
490 curr_cmd->UserCallbackData = callback_data;
491
492 AddDrawCmd(); // Force a new command after us (see comment below)
493 }
494
495 // Compare ClipRect, TextureId and VtxOffset with a single memcmp()
496 #define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
497 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
498 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
499
500 // Try to merge two last draw commands
_TryMergeDrawCmds()501 void ImDrawList::_TryMergeDrawCmds()
502 {
503 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
504 ImDrawCmd* prev_cmd = curr_cmd - 1;
505 if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
506 {
507 prev_cmd->ElemCount += curr_cmd->ElemCount;
508 CmdBuffer.pop_back();
509 }
510 }
511
512 // Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
513 // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
_OnChangedClipRect()514 void ImDrawList::_OnChangedClipRect()
515 {
516 // If current command is used with different settings we need to add a new command
517 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
518 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
519 {
520 AddDrawCmd();
521 return;
522 }
523 IM_ASSERT(curr_cmd->UserCallback == NULL);
524
525 // Try to merge with previous command if it matches, else use current command
526 ImDrawCmd* prev_cmd = curr_cmd - 1;
527 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
528 {
529 CmdBuffer.pop_back();
530 return;
531 }
532
533 curr_cmd->ClipRect = _CmdHeader.ClipRect;
534 }
535
_OnChangedTextureID()536 void ImDrawList::_OnChangedTextureID()
537 {
538 // If current command is used with different settings we need to add a new command
539 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
540 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
541 {
542 AddDrawCmd();
543 return;
544 }
545 IM_ASSERT(curr_cmd->UserCallback == NULL);
546
547 // Try to merge with previous command if it matches, else use current command
548 ImDrawCmd* prev_cmd = curr_cmd - 1;
549 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
550 {
551 CmdBuffer.pop_back();
552 return;
553 }
554
555 curr_cmd->TextureId = _CmdHeader.TextureId;
556 }
557
_OnChangedVtxOffset()558 void ImDrawList::_OnChangedVtxOffset()
559 {
560 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
561 _VtxCurrentIdx = 0;
562 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
563 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
564 if (curr_cmd->ElemCount != 0)
565 {
566 AddDrawCmd();
567 return;
568 }
569 IM_ASSERT(curr_cmd->UserCallback == NULL);
570 curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
571 }
572
_CalcCircleAutoSegmentCount(float radius) const573 int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
574 {
575 // Automatic segment count
576 const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
577 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
578 return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
579 else
580 return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
581 }
582
583 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
PushClipRect(ImVec2 cr_min,ImVec2 cr_max,bool intersect_with_current_clip_rect)584 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
585 {
586 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
587 if (intersect_with_current_clip_rect)
588 {
589 ImVec4 current = _CmdHeader.ClipRect;
590 if (cr.x < current.x) cr.x = current.x;
591 if (cr.y < current.y) cr.y = current.y;
592 if (cr.z > current.z) cr.z = current.z;
593 if (cr.w > current.w) cr.w = current.w;
594 }
595 cr.z = ImMax(cr.x, cr.z);
596 cr.w = ImMax(cr.y, cr.w);
597
598 _ClipRectStack.push_back(cr);
599 _CmdHeader.ClipRect = cr;
600 _OnChangedClipRect();
601 }
602
PushClipRectFullScreen()603 void ImDrawList::PushClipRectFullScreen()
604 {
605 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
606 }
607
PopClipRect()608 void ImDrawList::PopClipRect()
609 {
610 _ClipRectStack.pop_back();
611 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
612 _OnChangedClipRect();
613 }
614
PushTextureID(ImTextureID texture_id)615 void ImDrawList::PushTextureID(ImTextureID texture_id)
616 {
617 _TextureIdStack.push_back(texture_id);
618 _CmdHeader.TextureId = texture_id;
619 _OnChangedTextureID();
620 }
621
PopTextureID()622 void ImDrawList::PopTextureID()
623 {
624 _TextureIdStack.pop_back();
625 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
626 _OnChangedTextureID();
627 }
628
629 // Reserve space for a number of vertices and indices.
630 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
631 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
PrimReserve(int idx_count,int vtx_count)632 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
633 {
634 // Large mesh support (when enabled)
635 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
636 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
637 {
638 // FIXME: In theory we should be testing that vtx_count <64k here.
639 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
640 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
641 _CmdHeader.VtxOffset = VtxBuffer.Size;
642 _OnChangedVtxOffset();
643 }
644
645 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
646 draw_cmd->ElemCount += idx_count;
647
648 int vtx_buffer_old_size = VtxBuffer.Size;
649 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
650 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
651
652 int idx_buffer_old_size = IdxBuffer.Size;
653 IdxBuffer.resize(idx_buffer_old_size + idx_count);
654 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
655 }
656
657 // Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
PrimUnreserve(int idx_count,int vtx_count)658 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
659 {
660 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
661
662 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
663 draw_cmd->ElemCount -= idx_count;
664 VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
665 IdxBuffer.shrink(IdxBuffer.Size - idx_count);
666 }
667
668 // Fully unrolled with inline call to keep our debug builds decently fast.
PrimRect(const ImVec2 & a,const ImVec2 & c,ImU32 col)669 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
670 {
671 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
672 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
673 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
674 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
675 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
676 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
677 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
678 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
679 _VtxWritePtr += 4;
680 _VtxCurrentIdx += 4;
681 _IdxWritePtr += 6;
682 }
683
PrimRectUV(const ImVec2 & a,const ImVec2 & c,const ImVec2 & uv_a,const ImVec2 & uv_c,ImU32 col)684 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
685 {
686 ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
687 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
688 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
689 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
690 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
691 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
692 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
693 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
694 _VtxWritePtr += 4;
695 _VtxCurrentIdx += 4;
696 _IdxWritePtr += 6;
697 }
698
PrimQuadUV(const ImVec2 & a,const ImVec2 & b,const ImVec2 & c,const ImVec2 & d,const ImVec2 & uv_a,const ImVec2 & uv_b,const ImVec2 & uv_c,const ImVec2 & uv_d,ImU32 col)699 void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
700 {
701 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
702 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
703 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
704 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
705 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
706 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
707 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
708 _VtxWritePtr += 4;
709 _VtxCurrentIdx += 4;
710 _IdxWritePtr += 6;
711 }
712
713 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
714 // - Those macros expects l-values and need to be used as their own statement.
715 // - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
716 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0
717 #define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366)
718 #define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0
719
720 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
721 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
AddPolyline(const ImVec2 * points,const int points_count,ImU32 col,ImDrawFlags flags,float thickness)722 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
723 {
724 if (points_count < 2)
725 return;
726
727 const bool closed = (flags & ImDrawFlags_Closed) != 0;
728 const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
729 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
730 const bool thick_line = (thickness > _FringeScale);
731
732 if (Flags & ImDrawListFlags_AntiAliasedLines)
733 {
734 // Anti-aliased stroke
735 const float AA_SIZE = _FringeScale;
736 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
737
738 // Thicknesses <1.0 should behave like thickness 1.0
739 thickness = ImMax(thickness, 1.0f);
740 const int integer_thickness = (int)thickness;
741 const float fractional_thickness = thickness - integer_thickness;
742
743 // Do we want to draw this line using a texture?
744 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
745 // - If AA_SIZE is not 1.0f we cannot use the texture path.
746 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
747
748 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
749 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
750
751 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
752 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
753 PrimReserve(idx_count, vtx_count);
754
755 // Temporary buffer
756 // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
757 ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
758 ImVec2* temp_points = temp_normals + points_count;
759
760 // Calculate normals (tangents) for each line segment
761 for (int i1 = 0; i1 < count; i1++)
762 {
763 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
764 float dx = points[i2].x - points[i1].x;
765 float dy = points[i2].y - points[i1].y;
766 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
767 temp_normals[i1].x = dy;
768 temp_normals[i1].y = -dx;
769 }
770 if (!closed)
771 temp_normals[points_count - 1] = temp_normals[points_count - 2];
772
773 // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
774 if (use_texture || !thick_line)
775 {
776 // [PATH 1] Texture-based lines (thick or non-thick)
777 // [PATH 2] Non texture-based lines (non-thick)
778
779 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
780 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
781 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
782 // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
783 // allow scaling geometry while preserving one-screen-pixel AA fringe).
784 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
785
786 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
787 if (!closed)
788 {
789 temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
790 temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
791 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
792 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
793 }
794
795 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
796 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
797 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
798 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
799 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
800 {
801 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
802 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
803
804 // Average normals
805 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
806 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
807 IM_FIXNORMAL2F(dm_x, dm_y);
808 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
809 dm_y *= half_draw_size;
810
811 // Add temporary vertexes for the outer edges
812 ImVec2* out_vtx = &temp_points[i2 * 2];
813 out_vtx[0].x = points[i2].x + dm_x;
814 out_vtx[0].y = points[i2].y + dm_y;
815 out_vtx[1].x = points[i2].x - dm_x;
816 out_vtx[1].y = points[i2].y - dm_y;
817
818 if (use_texture)
819 {
820 // Add indices for two triangles
821 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
822 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
823 _IdxWritePtr += 6;
824 }
825 else
826 {
827 // Add indexes for four triangles
828 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
829 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
830 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
831 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
832 _IdxWritePtr += 12;
833 }
834
835 idx1 = idx2;
836 }
837
838 // Add vertexes for each point on the line
839 if (use_texture)
840 {
841 // If we're using textures we only need to emit the left/right edge vertices
842 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
843 /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
844 {
845 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
846 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
847 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
848 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
849 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
850 }*/
851 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
852 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
853 for (int i = 0; i < points_count; i++)
854 {
855 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
856 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
857 _VtxWritePtr += 2;
858 }
859 }
860 else
861 {
862 // If we're not using a texture, we need the center vertex as well
863 for (int i = 0; i < points_count; i++)
864 {
865 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
866 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
867 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
868 _VtxWritePtr += 3;
869 }
870 }
871 }
872 else
873 {
874 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
875 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
876
877 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
878 if (!closed)
879 {
880 const int points_last = points_count - 1;
881 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
882 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
883 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
884 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
885 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
886 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
887 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
888 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
889 }
890
891 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
892 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
893 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
894 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
895 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
896 {
897 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
898 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
899
900 // Average normals
901 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
902 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
903 IM_FIXNORMAL2F(dm_x, dm_y);
904 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
905 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
906 float dm_in_x = dm_x * half_inner_thickness;
907 float dm_in_y = dm_y * half_inner_thickness;
908
909 // Add temporary vertices
910 ImVec2* out_vtx = &temp_points[i2 * 4];
911 out_vtx[0].x = points[i2].x + dm_out_x;
912 out_vtx[0].y = points[i2].y + dm_out_y;
913 out_vtx[1].x = points[i2].x + dm_in_x;
914 out_vtx[1].y = points[i2].y + dm_in_y;
915 out_vtx[2].x = points[i2].x - dm_in_x;
916 out_vtx[2].y = points[i2].y - dm_in_y;
917 out_vtx[3].x = points[i2].x - dm_out_x;
918 out_vtx[3].y = points[i2].y - dm_out_y;
919
920 // Add indexes
921 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
922 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
923 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
924 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
925 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
926 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
927 _IdxWritePtr += 18;
928
929 idx1 = idx2;
930 }
931
932 // Add vertices
933 for (int i = 0; i < points_count; i++)
934 {
935 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
936 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
937 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
938 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
939 _VtxWritePtr += 4;
940 }
941 }
942 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
943 }
944 else
945 {
946 // [PATH 4] Non texture-based, Non anti-aliased lines
947 const int idx_count = count * 6;
948 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
949 PrimReserve(idx_count, vtx_count);
950
951 for (int i1 = 0; i1 < count; i1++)
952 {
953 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
954 const ImVec2& p1 = points[i1];
955 const ImVec2& p2 = points[i2];
956
957 float dx = p2.x - p1.x;
958 float dy = p2.y - p1.y;
959 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
960 dx *= (thickness * 0.5f);
961 dy *= (thickness * 0.5f);
962
963 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
964 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
965 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
966 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
967 _VtxWritePtr += 4;
968
969 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
970 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
971 _IdxWritePtr += 6;
972 _VtxCurrentIdx += 4;
973 }
974 }
975 }
976
977 // We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
AddConvexPolyFilled(const ImVec2 * points,const int points_count,ImU32 col)978 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
979 {
980 if (points_count < 3)
981 return;
982
983 const ImVec2 uv = _Data->TexUvWhitePixel;
984
985 if (Flags & ImDrawListFlags_AntiAliasedFill)
986 {
987 // Anti-aliased Fill
988 const float AA_SIZE = _FringeScale;
989 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
990 const int idx_count = (points_count - 2)*3 + points_count * 6;
991 const int vtx_count = (points_count * 2);
992 PrimReserve(idx_count, vtx_count);
993
994 // Add indexes for fill
995 unsigned int vtx_inner_idx = _VtxCurrentIdx;
996 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
997 for (int i = 2; i < points_count; i++)
998 {
999 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
1000 _IdxWritePtr += 3;
1001 }
1002
1003 // Compute normals
1004 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
1005 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1006 {
1007 const ImVec2& p0 = points[i0];
1008 const ImVec2& p1 = points[i1];
1009 float dx = p1.x - p0.x;
1010 float dy = p1.y - p0.y;
1011 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
1012 temp_normals[i0].x = dy;
1013 temp_normals[i0].y = -dx;
1014 }
1015
1016 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1017 {
1018 // Average normals
1019 const ImVec2& n0 = temp_normals[i0];
1020 const ImVec2& n1 = temp_normals[i1];
1021 float dm_x = (n0.x + n1.x) * 0.5f;
1022 float dm_y = (n0.y + n1.y) * 0.5f;
1023 IM_FIXNORMAL2F(dm_x, dm_y);
1024 dm_x *= AA_SIZE * 0.5f;
1025 dm_y *= AA_SIZE * 0.5f;
1026
1027 // Add vertices
1028 _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
1029 _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
1030 _VtxWritePtr += 2;
1031
1032 // Add indexes for fringes
1033 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
1034 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
1035 _IdxWritePtr += 6;
1036 }
1037 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1038 }
1039 else
1040 {
1041 // Non Anti-aliased Fill
1042 const int idx_count = (points_count - 2)*3;
1043 const int vtx_count = points_count;
1044 PrimReserve(idx_count, vtx_count);
1045 for (int i = 0; i < vtx_count; i++)
1046 {
1047 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
1048 _VtxWritePtr++;
1049 }
1050 for (int i = 2; i < points_count; i++)
1051 {
1052 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
1053 _IdxWritePtr += 3;
1054 }
1055 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1056 }
1057 }
1058
_PathArcToFastEx(const ImVec2 & center,float radius,int a_min_sample,int a_max_sample,int a_step)1059 void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
1060 {
1061 if (radius <= 0.0f)
1062 {
1063 _Path.push_back(center);
1064 return;
1065 }
1066
1067 // Calculate arc auto segment step size
1068 if (a_step <= 0)
1069 a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
1070
1071 // Make sure we never do steps larger than one quarter of the circle
1072 a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
1073
1074 const int sample_range = ImAbs(a_max_sample - a_min_sample);
1075 const int a_next_step = a_step;
1076
1077 int samples = sample_range + 1;
1078 bool extra_max_sample = false;
1079 if (a_step > 1)
1080 {
1081 samples = sample_range / a_step + 1;
1082 const int overstep = sample_range % a_step;
1083
1084 if (overstep > 0)
1085 {
1086 extra_max_sample = true;
1087 samples++;
1088
1089 // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
1090 // distribute first step range evenly between them by reducing first step size.
1091 if (sample_range > 0)
1092 a_step -= (a_step - overstep) / 2;
1093 }
1094 }
1095
1096 _Path.resize(_Path.Size + samples);
1097 ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
1098
1099 int sample_index = a_min_sample;
1100 if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1101 {
1102 sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1103 if (sample_index < 0)
1104 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1105 }
1106
1107 if (a_max_sample >= a_min_sample)
1108 {
1109 for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
1110 {
1111 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1112 if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1113 sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1114
1115 const ImVec2 s = _Data->ArcFastVtx[sample_index];
1116 out_ptr->x = center.x + s.x * radius;
1117 out_ptr->y = center.y + s.y * radius;
1118 out_ptr++;
1119 }
1120 }
1121 else
1122 {
1123 for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
1124 {
1125 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1126 if (sample_index < 0)
1127 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1128
1129 const ImVec2 s = _Data->ArcFastVtx[sample_index];
1130 out_ptr->x = center.x + s.x * radius;
1131 out_ptr->y = center.y + s.y * radius;
1132 out_ptr++;
1133 }
1134 }
1135
1136 if (extra_max_sample)
1137 {
1138 int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1139 if (normalized_max_sample < 0)
1140 normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1141
1142 const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
1143 out_ptr->x = center.x + s.x * radius;
1144 out_ptr->y = center.y + s.y * radius;
1145 out_ptr++;
1146 }
1147
1148 IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
1149 }
1150
_PathArcToN(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1151 void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1152 {
1153 if (radius <= 0.0f)
1154 {
1155 _Path.push_back(center);
1156 return;
1157 }
1158
1159 // Note that we are adding a point at both a_min and a_max.
1160 // If you are trying to draw a full closed circle you don't want the overlapping points!
1161 _Path.reserve(_Path.Size + (num_segments + 1));
1162 for (int i = 0; i <= num_segments; i++)
1163 {
1164 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1165 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1166 }
1167 }
1168
1169 // 0: East, 3: South, 6: West, 9: North, 12: East
PathArcToFast(const ImVec2 & center,float radius,int a_min_of_12,int a_max_of_12)1170 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1171 {
1172 if (radius <= 0.0f)
1173 {
1174 _Path.push_back(center);
1175 return;
1176 }
1177 _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0);
1178 }
1179
PathArcTo(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1180 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1181 {
1182 if (radius <= 0.0f)
1183 {
1184 _Path.push_back(center);
1185 return;
1186 }
1187
1188 if (num_segments > 0)
1189 {
1190 _PathArcToN(center, radius, a_min, a_max, num_segments);
1191 return;
1192 }
1193
1194 // Automatic segment count
1195 if (radius <= _Data->ArcFastRadiusCutoff)
1196 {
1197 const bool a_is_reverse = a_max < a_min;
1198
1199 // We are going to use precomputed values for mid samples.
1200 // Determine first and last sample in lookup table that belong to the arc.
1201 const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
1202 const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
1203
1204 const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
1205 const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f);
1206 const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);
1207
1208 const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1209 const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1210 const bool a_emit_start = (a_min_segment_angle - a_min) != 0.0f;
1211 const bool a_emit_end = (a_max - a_max_segment_angle) != 0.0f;
1212
1213 _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
1214 if (a_emit_start)
1215 _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
1216 if (a_mid_samples > 0)
1217 _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0);
1218 if (a_emit_end)
1219 _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
1220 }
1221 else
1222 {
1223 const float arc_length = ImAbs(a_max - a_min);
1224 const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
1225 const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length));
1226 _PathArcToN(center, radius, a_min, a_max, arc_segment_count);
1227 }
1228 }
1229
ImBezierCubicCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,float t)1230 ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1231 {
1232 float u = 1.0f - t;
1233 float w1 = u * u * u;
1234 float w2 = 3 * u * u * t;
1235 float w3 = 3 * u * t * t;
1236 float w4 = t * t * t;
1237 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
1238 }
1239
ImBezierQuadraticCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,float t)1240 ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
1241 {
1242 float u = 1.0f - t;
1243 float w1 = u * u;
1244 float w2 = 2 * u * t;
1245 float w3 = t * t;
1246 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
1247 }
1248
1249 // Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp
PathBezierCubicCurveToCasteljau(ImVector<ImVec2> * path,float x1,float y1,float x2,float y2,float x3,float y3,float x4,float y4,float tess_tol,int level)1250 static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
1251 {
1252 float dx = x4 - x1;
1253 float dy = y4 - y1;
1254 float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
1255 float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
1256 d2 = (d2 >= 0) ? d2 : -d2;
1257 d3 = (d3 >= 0) ? d3 : -d3;
1258 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1259 {
1260 path->push_back(ImVec2(x4, y4));
1261 }
1262 else if (level < 10)
1263 {
1264 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1265 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1266 float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
1267 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1268 float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
1269 float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
1270 PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
1271 PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
1272 }
1273 }
1274
PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2> * path,float x1,float y1,float x2,float y2,float x3,float y3,float tess_tol,int level)1275 static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
1276 {
1277 float dx = x3 - x1, dy = y3 - y1;
1278 float det = (x2 - x3) * dy - (y2 - y3) * dx;
1279 if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
1280 {
1281 path->push_back(ImVec2(x3, y3));
1282 }
1283 else if (level < 10)
1284 {
1285 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1286 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1287 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1288 PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
1289 PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
1290 }
1291 }
1292
PathBezierCubicCurveTo(const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,int num_segments)1293 void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1294 {
1295 ImVec2 p1 = _Path.back();
1296 if (num_segments == 0)
1297 {
1298 PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
1299 }
1300 else
1301 {
1302 float t_step = 1.0f / (float)num_segments;
1303 for (int i_step = 1; i_step <= num_segments; i_step++)
1304 _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
1305 }
1306 }
1307
PathBezierQuadraticCurveTo(const ImVec2 & p2,const ImVec2 & p3,int num_segments)1308 void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
1309 {
1310 ImVec2 p1 = _Path.back();
1311 if (num_segments == 0)
1312 {
1313 PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
1314 }
1315 else
1316 {
1317 float t_step = 1.0f / (float)num_segments;
1318 for (int i_step = 1; i_step <= num_segments; i_step++)
1319 _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
1320 }
1321 }
1322
1323 IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
FixRectCornerFlags(ImDrawFlags flags)1324 static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
1325 {
1326 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
1327 // Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
1328 // ~0 --> ImDrawFlags_RoundCornersAll or 0
1329 if (flags == ~0)
1330 return ImDrawFlags_RoundCornersAll;
1331
1332 // Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations)
1333 // 0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!)
1334 // 0x02 --> ImDrawFlags_RoundCornersTopRight
1335 // 0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight
1336 // 0x04 --> ImDrawFlags_RoundCornersBotLeft
1337 // 0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft
1338 // ...
1339 // 0x0F --> ImDrawFlags_RoundCornersAll or 0
1340 // (See all values in ImDrawCornerFlags_)
1341 if (flags >= 0x01 && flags <= 0x0F)
1342 return (flags << 4);
1343
1344 // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
1345 #endif
1346
1347 // If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
1348 // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc...
1349 IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
1350
1351 if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
1352 flags |= ImDrawFlags_RoundCornersAll;
1353
1354 return flags;
1355 }
1356
PathRect(const ImVec2 & a,const ImVec2 & b,float rounding,ImDrawFlags flags)1357 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
1358 {
1359 flags = FixRectCornerFlags(flags);
1360 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f);
1361 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f ) - 1.0f);
1362
1363 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1364 {
1365 PathLineTo(a);
1366 PathLineTo(ImVec2(b.x, a.y));
1367 PathLineTo(b);
1368 PathLineTo(ImVec2(a.x, b.y));
1369 }
1370 else
1371 {
1372 const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f;
1373 const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f;
1374 const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
1375 const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f;
1376 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1377 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1378 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1379 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1380 }
1381 }
1382
AddLine(const ImVec2 & p1,const ImVec2 & p2,ImU32 col,float thickness)1383 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1384 {
1385 if ((col & IM_COL32_A_MASK) == 0)
1386 return;
1387 PathLineTo(p1 + ImVec2(0.5f, 0.5f));
1388 PathLineTo(p2 + ImVec2(0.5f, 0.5f));
1389 PathStroke(col, 0, thickness);
1390 }
1391
1392 // p_min = upper-left, p_max = lower-right
1393 // Note we don't render 1 pixels sized rectangles properly.
AddRect(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawFlags flags,float thickness)1394 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
1395 {
1396 if ((col & IM_COL32_A_MASK) == 0)
1397 return;
1398 if (Flags & ImDrawListFlags_AntiAliasedLines)
1399 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags);
1400 else
1401 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes.
1402 PathStroke(col, ImDrawFlags_Closed, thickness);
1403 }
1404
AddRectFilled(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawFlags flags)1405 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
1406 {
1407 if ((col & IM_COL32_A_MASK) == 0)
1408 return;
1409 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1410 {
1411 PrimReserve(6, 4);
1412 PrimRect(p_min, p_max, col);
1413 }
1414 else
1415 {
1416 PathRect(p_min, p_max, rounding, flags);
1417 PathFillConvex(col);
1418 }
1419 }
1420
1421 // p_min = upper-left, p_max = lower-right
AddRectFilledMultiColor(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col_upr_left,ImU32 col_upr_right,ImU32 col_bot_right,ImU32 col_bot_left)1422 void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1423 {
1424 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1425 return;
1426
1427 const ImVec2 uv = _Data->TexUvWhitePixel;
1428 PrimReserve(6, 4);
1429 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
1430 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
1431 PrimWriteVtx(p_min, uv, col_upr_left);
1432 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
1433 PrimWriteVtx(p_max, uv, col_bot_right);
1434 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
1435 }
1436
AddQuad(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness)1437 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1438 {
1439 if ((col & IM_COL32_A_MASK) == 0)
1440 return;
1441
1442 PathLineTo(p1);
1443 PathLineTo(p2);
1444 PathLineTo(p3);
1445 PathLineTo(p4);
1446 PathStroke(col, ImDrawFlags_Closed, thickness);
1447 }
1448
AddQuadFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col)1449 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1450 {
1451 if ((col & IM_COL32_A_MASK) == 0)
1452 return;
1453
1454 PathLineTo(p1);
1455 PathLineTo(p2);
1456 PathLineTo(p3);
1457 PathLineTo(p4);
1458 PathFillConvex(col);
1459 }
1460
AddTriangle(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness)1461 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1462 {
1463 if ((col & IM_COL32_A_MASK) == 0)
1464 return;
1465
1466 PathLineTo(p1);
1467 PathLineTo(p2);
1468 PathLineTo(p3);
1469 PathStroke(col, ImDrawFlags_Closed, thickness);
1470 }
1471
AddTriangleFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col)1472 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1473 {
1474 if ((col & IM_COL32_A_MASK) == 0)
1475 return;
1476
1477 PathLineTo(p1);
1478 PathLineTo(p2);
1479 PathLineTo(p3);
1480 PathFillConvex(col);
1481 }
1482
AddCircle(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1483 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1484 {
1485 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1486 return;
1487
1488 // Obtain segment count
1489 if (num_segments <= 0)
1490 {
1491 // Automatic segment count
1492 num_segments = _CalcCircleAutoSegmentCount(radius);
1493 }
1494 else
1495 {
1496 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1497 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1498 }
1499
1500 // Because we are filling a closed shape we remove 1 from the count of segments/points
1501 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1502 if (num_segments == 12)
1503 PathArcToFast(center, radius - 0.5f, 0, 12 - 1);
1504 else
1505 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1506 PathStroke(col, ImDrawFlags_Closed, thickness);
1507 }
1508
AddCircleFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1509 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1510 {
1511 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1512 return;
1513
1514 // Obtain segment count
1515 if (num_segments <= 0)
1516 {
1517 // Automatic segment count
1518 num_segments = _CalcCircleAutoSegmentCount(radius);
1519 }
1520 else
1521 {
1522 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1523 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1524 }
1525
1526 // Because we are filling a closed shape we remove 1 from the count of segments/points
1527 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1528 if (num_segments == 12)
1529 PathArcToFast(center, radius, 0, 12 - 1);
1530 else
1531 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1532 PathFillConvex(col);
1533 }
1534
1535 // Guaranteed to honor 'num_segments'
AddNgon(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1536 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1537 {
1538 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1539 return;
1540
1541 // Because we are filling a closed shape we remove 1 from the count of segments/points
1542 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1543 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1544 PathStroke(col, ImDrawFlags_Closed, thickness);
1545 }
1546
1547 // Guaranteed to honor 'num_segments'
AddNgonFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1548 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1549 {
1550 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1551 return;
1552
1553 // Because we are filling a closed shape we remove 1 from the count of segments/points
1554 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1555 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1556 PathFillConvex(col);
1557 }
1558
1559 // Cubic Bezier takes 4 controls points
AddBezierCubic(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness,int num_segments)1560 void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1561 {
1562 if ((col & IM_COL32_A_MASK) == 0)
1563 return;
1564
1565 PathLineTo(p1);
1566 PathBezierCubicCurveTo(p2, p3, p4, num_segments);
1567 PathStroke(col, 0, thickness);
1568 }
1569
1570 // Quadratic Bezier takes 3 controls points
AddBezierQuadratic(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness,int num_segments)1571 void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
1572 {
1573 if ((col & IM_COL32_A_MASK) == 0)
1574 return;
1575
1576 PathLineTo(p1);
1577 PathBezierQuadraticCurveTo(p2, p3, num_segments);
1578 PathStroke(col, 0, thickness);
1579 }
1580
AddText(const ImFont * font,float font_size,const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end,float wrap_width,const ImVec4 * cpu_fine_clip_rect)1581 void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
1582 {
1583 if ((col & IM_COL32_A_MASK) == 0)
1584 return;
1585
1586 if (text_end == NULL)
1587 text_end = text_begin + strlen(text_begin);
1588 if (text_begin == text_end)
1589 return;
1590
1591 // Pull default font/size from the shared ImDrawListSharedData instance
1592 if (font == NULL)
1593 font = _Data->Font;
1594 if (font_size == 0.0f)
1595 font_size = _Data->FontSize;
1596
1597 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1598
1599 ImVec4 clip_rect = _CmdHeader.ClipRect;
1600 if (cpu_fine_clip_rect)
1601 {
1602 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1603 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1604 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1605 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1606 }
1607 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1608 }
1609
AddText(const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end)1610 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1611 {
1612 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1613 }
1614
AddImage(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col)1615 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
1616 {
1617 if ((col & IM_COL32_A_MASK) == 0)
1618 return;
1619
1620 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1621 if (push_texture_id)
1622 PushTextureID(user_texture_id);
1623
1624 PrimReserve(6, 4);
1625 PrimRectUV(p_min, p_max, uv_min, uv_max, col);
1626
1627 if (push_texture_id)
1628 PopTextureID();
1629 }
1630
AddImageQuad(ImTextureID user_texture_id,const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,const ImVec2 & uv1,const ImVec2 & uv2,const ImVec2 & uv3,const ImVec2 & uv4,ImU32 col)1631 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
1632 {
1633 if ((col & IM_COL32_A_MASK) == 0)
1634 return;
1635
1636 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1637 if (push_texture_id)
1638 PushTextureID(user_texture_id);
1639
1640 PrimReserve(6, 4);
1641 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
1642
1643 if (push_texture_id)
1644 PopTextureID();
1645 }
1646
AddImageRounded(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col,float rounding,ImDrawFlags flags)1647 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags)
1648 {
1649 if ((col & IM_COL32_A_MASK) == 0)
1650 return;
1651
1652 flags = FixRectCornerFlags(flags);
1653 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1654 {
1655 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
1656 return;
1657 }
1658
1659 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1660 if (push_texture_id)
1661 PushTextureID(user_texture_id);
1662
1663 int vert_start_idx = VtxBuffer.Size;
1664 PathRect(p_min, p_max, rounding, flags);
1665 PathFillConvex(col);
1666 int vert_end_idx = VtxBuffer.Size;
1667 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
1668
1669 if (push_texture_id)
1670 PopTextureID();
1671 }
1672
1673
1674 //-----------------------------------------------------------------------------
1675 // [SECTION] ImDrawListSplitter
1676 //-----------------------------------------------------------------------------
1677 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
1678 //-----------------------------------------------------------------------------
1679
ClearFreeMemory()1680 void ImDrawListSplitter::ClearFreeMemory()
1681 {
1682 for (int i = 0; i < _Channels.Size; i++)
1683 {
1684 if (i == _Current)
1685 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
1686 _Channels[i]._CmdBuffer.clear();
1687 _Channels[i]._IdxBuffer.clear();
1688 }
1689 _Current = 0;
1690 _Count = 1;
1691 _Channels.clear();
1692 }
1693
Split(ImDrawList * draw_list,int channels_count)1694 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
1695 {
1696 IM_UNUSED(draw_list);
1697 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
1698 int old_channels_count = _Channels.Size;
1699 if (old_channels_count < channels_count)
1700 {
1701 _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
1702 _Channels.resize(channels_count);
1703 }
1704 _Count = channels_count;
1705
1706 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
1707 // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
1708 // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
1709 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
1710 for (int i = 1; i < channels_count; i++)
1711 {
1712 if (i >= old_channels_count)
1713 {
1714 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
1715 }
1716 else
1717 {
1718 _Channels[i]._CmdBuffer.resize(0);
1719 _Channels[i]._IdxBuffer.resize(0);
1720 }
1721 }
1722 }
1723
Merge(ImDrawList * draw_list)1724 void ImDrawListSplitter::Merge(ImDrawList* draw_list)
1725 {
1726 // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
1727 if (_Count <= 1)
1728 return;
1729
1730 SetCurrentChannel(draw_list, 0);
1731 draw_list->_PopUnusedDrawCmd();
1732
1733 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
1734 int new_cmd_buffer_count = 0;
1735 int new_idx_buffer_count = 0;
1736 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
1737 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
1738 for (int i = 1; i < _Count; i++)
1739 {
1740 ImDrawChannel& ch = _Channels[i];
1741
1742 // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
1743 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
1744 ch._CmdBuffer.pop_back();
1745
1746 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
1747 {
1748 ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
1749 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
1750 {
1751 // Merge previous channel last draw command with current channel first draw command if matching.
1752 last_cmd->ElemCount += next_cmd->ElemCount;
1753 idx_offset += next_cmd->ElemCount;
1754 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
1755 }
1756 }
1757 if (ch._CmdBuffer.Size > 0)
1758 last_cmd = &ch._CmdBuffer.back();
1759 new_cmd_buffer_count += ch._CmdBuffer.Size;
1760 new_idx_buffer_count += ch._IdxBuffer.Size;
1761 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
1762 {
1763 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
1764 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
1765 }
1766 }
1767 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
1768 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
1769
1770 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
1771 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
1772 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
1773 for (int i = 1; i < _Count; i++)
1774 {
1775 ImDrawChannel& ch = _Channels[i];
1776 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
1777 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
1778 }
1779 draw_list->_IdxWritePtr = idx_write;
1780
1781 // Ensure there's always a non-callback draw command trailing the command-buffer
1782 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
1783 draw_list->AddDrawCmd();
1784
1785 // If current command is used with different settings we need to add a new command
1786 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1787 if (curr_cmd->ElemCount == 0)
1788 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1789 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1790 draw_list->AddDrawCmd();
1791
1792 _Count = 1;
1793 }
1794
SetCurrentChannel(ImDrawList * draw_list,int idx)1795 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
1796 {
1797 IM_ASSERT(idx >= 0 && idx < _Count);
1798 if (_Current == idx)
1799 return;
1800
1801 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
1802 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
1803 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
1804 _Current = idx;
1805 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
1806 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
1807 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
1808
1809 // If current command is used with different settings we need to add a new command
1810 ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1811 if (curr_cmd == NULL)
1812 draw_list->AddDrawCmd();
1813 else if (curr_cmd->ElemCount == 0)
1814 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1815 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1816 draw_list->AddDrawCmd();
1817 }
1818
1819 //-----------------------------------------------------------------------------
1820 // [SECTION] ImDrawData
1821 //-----------------------------------------------------------------------------
1822
1823 // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
DeIndexAllBuffers()1824 void ImDrawData::DeIndexAllBuffers()
1825 {
1826 ImVector<ImDrawVert> new_vtx_buffer;
1827 TotalVtxCount = TotalIdxCount = 0;
1828 for (int i = 0; i < CmdListsCount; i++)
1829 {
1830 ImDrawList* cmd_list = CmdLists[i];
1831 if (cmd_list->IdxBuffer.empty())
1832 continue;
1833 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1834 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1835 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1836 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1837 cmd_list->IdxBuffer.resize(0);
1838 TotalVtxCount += cmd_list->VtxBuffer.Size;
1839 }
1840 }
1841
1842 // Helper to scale the ClipRect field of each ImDrawCmd.
1843 // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1844 // or if there is a difference between your window resolution and framebuffer resolution.
ScaleClipRects(const ImVec2 & fb_scale)1845 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1846 {
1847 for (int i = 0; i < CmdListsCount; i++)
1848 {
1849 ImDrawList* cmd_list = CmdLists[i];
1850 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1851 {
1852 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1853 cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
1854 }
1855 }
1856 }
1857
1858 //-----------------------------------------------------------------------------
1859 // [SECTION] Helpers ShadeVertsXXX functions
1860 //-----------------------------------------------------------------------------
1861
1862 // Generic linear color gradient, write to RGB fields, leave A untouched.
ShadeVertsLinearColorGradientKeepAlpha(ImDrawList * draw_list,int vert_start_idx,int vert_end_idx,ImVec2 gradient_p0,ImVec2 gradient_p1,ImU32 col0,ImU32 col1)1863 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1864 {
1865 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1866 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1867 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1868 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1869 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
1870 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
1871 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
1872 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
1873 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
1874 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
1875 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1876 {
1877 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1878 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1879 int r = (int)(col0_r + col_delta_r * t);
1880 int g = (int)(col0_g + col_delta_g * t);
1881 int b = (int)(col0_b + col_delta_b * t);
1882 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1883 }
1884 }
1885
1886 // Distribute UV over (a, b) rectangle
ShadeVertsLinearUV(ImDrawList * draw_list,int vert_start_idx,int vert_end_idx,const ImVec2 & a,const ImVec2 & b,const ImVec2 & uv_a,const ImVec2 & uv_b,bool clamp)1887 void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
1888 {
1889 const ImVec2 size = b - a;
1890 const ImVec2 uv_size = uv_b - uv_a;
1891 const ImVec2 scale = ImVec2(
1892 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1893 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1894
1895 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1896 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1897 if (clamp)
1898 {
1899 const ImVec2 min = ImMin(uv_a, uv_b);
1900 const ImVec2 max = ImMax(uv_a, uv_b);
1901 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1902 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1903 }
1904 else
1905 {
1906 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1907 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1908 }
1909 }
1910
1911 //-----------------------------------------------------------------------------
1912 // [SECTION] ImFontConfig
1913 //-----------------------------------------------------------------------------
1914
ImFontConfig()1915 ImFontConfig::ImFontConfig()
1916 {
1917 memset(this, 0, sizeof(*this));
1918 FontDataOwnedByAtlas = true;
1919 OversampleH = 3; // FIXME: 2 may be a better default?
1920 OversampleV = 1;
1921 GlyphMaxAdvanceX = FLT_MAX;
1922 RasterizerMultiply = 1.0f;
1923 EllipsisChar = (ImWchar)-1;
1924 }
1925
1926 //-----------------------------------------------------------------------------
1927 // [SECTION] ImFontAtlas
1928 //-----------------------------------------------------------------------------
1929
1930 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1931 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
1932 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
1933 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1934 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1935 {
1936 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1937 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1938 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1939 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1940 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1941 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1942 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1943 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1944 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1945 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1946 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1947 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1948 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1949 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1950 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1951 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1952 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1953 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1954 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1955 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1956 " X..X - X...X - X...X - X..X X..X - - X........X "
1957 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1958 "------------ - X - X -X.....................X- ------------------"
1959 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1960 " - X..X X..X - "
1961 " - X.X X.X - "
1962 " - XX XX - "
1963 };
1964
1965 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1966 {
1967 // Pos ........ Size ......... Offset ......
1968 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1969 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1970 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1971 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1972 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1973 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1974 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1975 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1976 };
1977
ImFontAtlas()1978 ImFontAtlas::ImFontAtlas()
1979 {
1980 memset(this, 0, sizeof(*this));
1981 TexGlyphPadding = 1;
1982 PackIdMouseCursors = PackIdLines = -1;
1983 }
1984
~ImFontAtlas()1985 ImFontAtlas::~ImFontAtlas()
1986 {
1987 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1988 Clear();
1989 }
1990
ClearInputData()1991 void ImFontAtlas::ClearInputData()
1992 {
1993 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1994 for (int i = 0; i < ConfigData.Size; i++)
1995 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1996 {
1997 IM_FREE(ConfigData[i].FontData);
1998 ConfigData[i].FontData = NULL;
1999 }
2000
2001 // When clearing this we lose access to the font name and other information used to build the font.
2002 for (int i = 0; i < Fonts.Size; i++)
2003 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
2004 {
2005 Fonts[i]->ConfigData = NULL;
2006 Fonts[i]->ConfigDataCount = 0;
2007 }
2008 ConfigData.clear();
2009 CustomRects.clear();
2010 PackIdMouseCursors = PackIdLines = -1;
2011 TexReady = false;
2012 }
2013
ClearTexData()2014 void ImFontAtlas::ClearTexData()
2015 {
2016 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2017 if (TexPixelsAlpha8)
2018 IM_FREE(TexPixelsAlpha8);
2019 if (TexPixelsRGBA32)
2020 IM_FREE(TexPixelsRGBA32);
2021 TexPixelsAlpha8 = NULL;
2022 TexPixelsRGBA32 = NULL;
2023 TexPixelsUseColors = false;
2024 // Important: we leave TexReady untouched
2025 }
2026
ClearFonts()2027 void ImFontAtlas::ClearFonts()
2028 {
2029 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2030 Fonts.clear_delete();
2031 TexReady = false;
2032 }
2033
Clear()2034 void ImFontAtlas::Clear()
2035 {
2036 ClearInputData();
2037 ClearTexData();
2038 ClearFonts();
2039 }
2040
GetTexDataAsAlpha8(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)2041 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2042 {
2043 // Build atlas on demand
2044 if (TexPixelsAlpha8 == NULL)
2045 Build();
2046
2047 *out_pixels = TexPixelsAlpha8;
2048 if (out_width) *out_width = TexWidth;
2049 if (out_height) *out_height = TexHeight;
2050 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
2051 }
2052
GetTexDataAsRGBA32(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)2053 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2054 {
2055 // Convert to RGBA32 format on demand
2056 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
2057 if (!TexPixelsRGBA32)
2058 {
2059 unsigned char* pixels = NULL;
2060 GetTexDataAsAlpha8(&pixels, NULL, NULL);
2061 if (pixels)
2062 {
2063 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
2064 const unsigned char* src = pixels;
2065 unsigned int* dst = TexPixelsRGBA32;
2066 for (int n = TexWidth * TexHeight; n > 0; n--)
2067 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
2068 }
2069 }
2070
2071 *out_pixels = (unsigned char*)TexPixelsRGBA32;
2072 if (out_width) *out_width = TexWidth;
2073 if (out_height) *out_height = TexHeight;
2074 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
2075 }
2076
AddFont(const ImFontConfig * font_cfg)2077 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
2078 {
2079 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2080 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
2081 IM_ASSERT(font_cfg->SizePixels > 0.0f);
2082
2083 // Create new font
2084 if (!font_cfg->MergeMode)
2085 Fonts.push_back(IM_NEW(ImFont));
2086 else
2087 IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
2088
2089 ConfigData.push_back(*font_cfg);
2090 ImFontConfig& new_font_cfg = ConfigData.back();
2091 if (new_font_cfg.DstFont == NULL)
2092 new_font_cfg.DstFont = Fonts.back();
2093 if (!new_font_cfg.FontDataOwnedByAtlas)
2094 {
2095 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
2096 new_font_cfg.FontDataOwnedByAtlas = true;
2097 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
2098 }
2099
2100 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
2101 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
2102
2103 // Invalidate texture
2104 TexReady = false;
2105 ClearTexData();
2106 return new_font_cfg.DstFont;
2107 }
2108
2109 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
2110 static unsigned int stb_decompress_length(const unsigned char* input);
2111 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
2112 static const char* GetDefaultCompressedFontDataTTFBase85();
Decode85Byte(char c)2113 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
Decode85(const unsigned char * src,unsigned char * dst)2114 static void Decode85(const unsigned char* src, unsigned char* dst)
2115 {
2116 while (*src)
2117 {
2118 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
2119 dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness.
2120 src += 5;
2121 dst += 4;
2122 }
2123 }
2124
2125 // Load embedded ProggyClean.ttf at size 13, disable oversampling
AddFontDefault(const ImFontConfig * font_cfg_template)2126 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
2127 {
2128 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2129 if (!font_cfg_template)
2130 {
2131 font_cfg.OversampleH = font_cfg.OversampleV = 1;
2132 font_cfg.PixelSnapH = true;
2133 }
2134 if (font_cfg.SizePixels <= 0.0f)
2135 font_cfg.SizePixels = 13.0f * 1.0f;
2136 if (font_cfg.Name[0] == '\0')
2137 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
2138 font_cfg.EllipsisChar = (ImWchar)0x0085;
2139 font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
2140
2141 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
2142 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
2143 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
2144 return font;
2145 }
2146
AddFontFromFileTTF(const char * filename,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2147 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2148 {
2149 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2150 size_t data_size = 0;
2151 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
2152 if (!data)
2153 {
2154 IM_ASSERT_USER_ERROR(0, "Could not load font file!");
2155 return NULL;
2156 }
2157 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2158 if (font_cfg.Name[0] == '\0')
2159 {
2160 // Store a short copy of filename into into the font name for convenience
2161 const char* p;
2162 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
2163 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
2164 }
2165 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
2166 }
2167
2168 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
AddFontFromMemoryTTF(void * ttf_data,int ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2169 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2170 {
2171 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2172 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2173 IM_ASSERT(font_cfg.FontData == NULL);
2174 font_cfg.FontData = ttf_data;
2175 font_cfg.FontDataSize = ttf_size;
2176 font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
2177 if (glyph_ranges)
2178 font_cfg.GlyphRanges = glyph_ranges;
2179 return AddFont(&font_cfg);
2180 }
2181
AddFontFromMemoryCompressedTTF(const void * compressed_ttf_data,int compressed_ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2182 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2183 {
2184 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
2185 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
2186 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
2187
2188 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2189 IM_ASSERT(font_cfg.FontData == NULL);
2190 font_cfg.FontDataOwnedByAtlas = true;
2191 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
2192 }
2193
AddFontFromMemoryCompressedBase85TTF(const char * compressed_ttf_data_base85,float size_pixels,const ImFontConfig * font_cfg,const ImWchar * glyph_ranges)2194 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
2195 {
2196 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
2197 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
2198 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
2199 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
2200 IM_FREE(compressed_ttf);
2201 return font;
2202 }
2203
AddCustomRectRegular(int width,int height)2204 int ImFontAtlas::AddCustomRectRegular(int width, int height)
2205 {
2206 IM_ASSERT(width > 0 && width <= 0xFFFF);
2207 IM_ASSERT(height > 0 && height <= 0xFFFF);
2208 ImFontAtlasCustomRect r;
2209 r.Width = (unsigned short)width;
2210 r.Height = (unsigned short)height;
2211 CustomRects.push_back(r);
2212 return CustomRects.Size - 1; // Return index
2213 }
2214
AddCustomRectFontGlyph(ImFont * font,ImWchar id,int width,int height,float advance_x,const ImVec2 & offset)2215 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
2216 {
2217 #ifdef IMGUI_USE_WCHAR32
2218 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
2219 #endif
2220 IM_ASSERT(font != NULL);
2221 IM_ASSERT(width > 0 && width <= 0xFFFF);
2222 IM_ASSERT(height > 0 && height <= 0xFFFF);
2223 ImFontAtlasCustomRect r;
2224 r.Width = (unsigned short)width;
2225 r.Height = (unsigned short)height;
2226 r.GlyphID = id;
2227 r.GlyphAdvanceX = advance_x;
2228 r.GlyphOffset = offset;
2229 r.Font = font;
2230 CustomRects.push_back(r);
2231 return CustomRects.Size - 1; // Return index
2232 }
2233
CalcCustomRectUV(const ImFontAtlasCustomRect * rect,ImVec2 * out_uv_min,ImVec2 * out_uv_max) const2234 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
2235 {
2236 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
2237 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
2238 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
2239 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
2240 }
2241
GetMouseCursorTexData(ImGuiMouseCursor cursor_type,ImVec2 * out_offset,ImVec2 * out_size,ImVec2 out_uv_border[2],ImVec2 out_uv_fill[2])2242 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
2243 {
2244 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
2245 return false;
2246 if (Flags & ImFontAtlasFlags_NoMouseCursors)
2247 return false;
2248
2249 IM_ASSERT(PackIdMouseCursors != -1);
2250 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
2251 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
2252 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
2253 *out_size = size;
2254 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
2255 out_uv_border[0] = (pos) * TexUvScale;
2256 out_uv_border[1] = (pos + size) * TexUvScale;
2257 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2258 out_uv_fill[0] = (pos) * TexUvScale;
2259 out_uv_fill[1] = (pos + size) * TexUvScale;
2260 return true;
2261 }
2262
Build()2263 bool ImFontAtlas::Build()
2264 {
2265 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2266
2267 // Default font is none are specified
2268 if (ConfigData.Size == 0)
2269 AddFontDefault();
2270
2271 // Select builder
2272 // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which
2273 // may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
2274 // using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere
2275 // and point to it instead of pointing directly to return value of the GetBuilderXXX functions.
2276 const ImFontBuilderIO* builder_io = FontBuilderIO;
2277 if (builder_io == NULL)
2278 {
2279 #ifdef IMGUI_ENABLE_FREETYPE
2280 builder_io = ImGuiFreeType::GetBuilderForFreeType();
2281 #elif defined(IMGUI_ENABLE_STB_TRUETYPE)
2282 builder_io = ImFontAtlasGetBuilderForStbTruetype();
2283 #else
2284 IM_ASSERT(0); // Invalid Build function
2285 #endif
2286 }
2287
2288 // Build
2289 return builder_io->FontBuilder_Build(this);
2290 }
2291
ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256],float in_brighten_factor)2292 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
2293 {
2294 for (unsigned int i = 0; i < 256; i++)
2295 {
2296 unsigned int value = (unsigned int)(i * in_brighten_factor);
2297 out_table[i] = value > 255 ? 255 : (value & 0xFF);
2298 }
2299 }
2300
ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256],unsigned char * pixels,int x,int y,int w,int h,int stride)2301 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
2302 {
2303 unsigned char* data = pixels + x + y * stride;
2304 for (int j = h; j > 0; j--, data += stride)
2305 for (int i = 0; i < w; i++)
2306 data[i] = table[data[i]];
2307 }
2308
2309 #ifdef IMGUI_ENABLE_STB_TRUETYPE
2310 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
2311 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
2312 struct ImFontBuildSrcData
2313 {
2314 stbtt_fontinfo FontInfo;
2315 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
2316 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
2317 stbtt_packedchar* PackedChars; // Output glyphs
2318 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
2319 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
2320 int GlyphsHighest; // Highest requested codepoint
2321 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
2322 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
2323 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
2324 };
2325
2326 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
2327 struct ImFontBuildDstData
2328 {
2329 int SrcCount; // Number of source fonts targeting this destination font.
2330 int GlyphsHighest;
2331 int GlyphsCount;
2332 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
2333 };
2334
UnpackBitVectorToFlatIndexList(const ImBitVector * in,ImVector<int> * out)2335 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
2336 {
2337 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
2338 const ImU32* it_begin = in->Storage.begin();
2339 const ImU32* it_end = in->Storage.end();
2340 for (const ImU32* it = it_begin; it < it_end; it++)
2341 if (ImU32 entries_32 = *it)
2342 for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
2343 if (entries_32 & ((ImU32)1 << bit_n))
2344 out->push_back((int)(((it - it_begin) << 5) + bit_n));
2345 }
2346
ImFontAtlasBuildWithStbTruetype(ImFontAtlas * atlas)2347 static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
2348 {
2349 IM_ASSERT(atlas->ConfigData.Size > 0);
2350
2351 ImFontAtlasBuildInit(atlas);
2352
2353 // Clear atlas
2354 atlas->TexID = (ImTextureID)NULL;
2355 atlas->TexWidth = atlas->TexHeight = 0;
2356 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
2357 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
2358 atlas->ClearTexData();
2359
2360 // Temporary storage for building
2361 ImVector<ImFontBuildSrcData> src_tmp_array;
2362 ImVector<ImFontBuildDstData> dst_tmp_array;
2363 src_tmp_array.resize(atlas->ConfigData.Size);
2364 dst_tmp_array.resize(atlas->Fonts.Size);
2365 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
2366 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
2367
2368 // 1. Initialize font loading structure, check font data validity
2369 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
2370 {
2371 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2372 ImFontConfig& cfg = atlas->ConfigData[src_i];
2373 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
2374
2375 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
2376 src_tmp.DstIndex = -1;
2377 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
2378 if (cfg.DstFont == atlas->Fonts[output_i])
2379 src_tmp.DstIndex = output_i;
2380 if (src_tmp.DstIndex == -1)
2381 {
2382 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
2383 return false;
2384 }
2385 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
2386 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
2387 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
2388 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
2389 return false;
2390
2391 // Measure highest codepoints
2392 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2393 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
2394 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2395 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
2396 dst_tmp.SrcCount++;
2397 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
2398 }
2399
2400 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
2401 int total_glyphs_count = 0;
2402 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2403 {
2404 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2405 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2406 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
2407 if (dst_tmp.GlyphsSet.Storage.empty())
2408 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
2409
2410 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2411 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
2412 {
2413 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
2414 continue;
2415 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
2416 continue;
2417
2418 // Add to avail set/counters
2419 src_tmp.GlyphsCount++;
2420 dst_tmp.GlyphsCount++;
2421 src_tmp.GlyphsSet.SetBit(codepoint);
2422 dst_tmp.GlyphsSet.SetBit(codepoint);
2423 total_glyphs_count++;
2424 }
2425 }
2426
2427 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
2428 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2429 {
2430 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2431 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
2432 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
2433 src_tmp.GlyphsSet.Clear();
2434 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
2435 }
2436 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
2437 dst_tmp_array[dst_i].GlyphsSet.Clear();
2438 dst_tmp_array.clear();
2439
2440 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
2441 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
2442 ImVector<stbrp_rect> buf_rects;
2443 ImVector<stbtt_packedchar> buf_packedchars;
2444 buf_rects.resize(total_glyphs_count);
2445 buf_packedchars.resize(total_glyphs_count);
2446 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
2447 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
2448
2449 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
2450 int total_surface = 0;
2451 int buf_rects_out_n = 0;
2452 int buf_packedchars_out_n = 0;
2453 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2454 {
2455 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2456 if (src_tmp.GlyphsCount == 0)
2457 continue;
2458
2459 src_tmp.Rects = &buf_rects[buf_rects_out_n];
2460 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
2461 buf_rects_out_n += src_tmp.GlyphsCount;
2462 buf_packedchars_out_n += src_tmp.GlyphsCount;
2463
2464 // Convert our ranges in the format stb_truetype wants
2465 ImFontConfig& cfg = atlas->ConfigData[src_i];
2466 src_tmp.PackRange.font_size = cfg.SizePixels;
2467 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
2468 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
2469 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
2470 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
2471 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
2472 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
2473
2474 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
2475 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
2476 const int padding = atlas->TexGlyphPadding;
2477 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
2478 {
2479 int x0, y0, x1, y1;
2480 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
2481 IM_ASSERT(glyph_index_in_font != 0);
2482 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
2483 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
2484 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
2485 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
2486 }
2487 }
2488
2489 // We need a width for the skyline algorithm, any width!
2490 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
2491 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
2492 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
2493 atlas->TexHeight = 0;
2494 if (atlas->TexDesiredWidth > 0)
2495 atlas->TexWidth = atlas->TexDesiredWidth;
2496 else
2497 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
2498
2499 // 5. Start packing
2500 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
2501 const int TEX_HEIGHT_MAX = 1024 * 32;
2502 stbtt_pack_context spc = {};
2503 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
2504 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
2505
2506 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
2507 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2508 {
2509 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2510 if (src_tmp.GlyphsCount == 0)
2511 continue;
2512
2513 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
2514
2515 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
2516 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
2517 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2518 if (src_tmp.Rects[glyph_i].was_packed)
2519 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
2520 }
2521
2522 // 7. Allocate texture
2523 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
2524 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
2525 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
2526 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
2527 spc.pixels = atlas->TexPixelsAlpha8;
2528 spc.height = atlas->TexHeight;
2529
2530 // 8. Render/rasterize font characters into the texture
2531 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2532 {
2533 ImFontConfig& cfg = atlas->ConfigData[src_i];
2534 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2535 if (src_tmp.GlyphsCount == 0)
2536 continue;
2537
2538 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
2539
2540 // Apply multiply operator
2541 if (cfg.RasterizerMultiply != 1.0f)
2542 {
2543 unsigned char multiply_table[256];
2544 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
2545 stbrp_rect* r = &src_tmp.Rects[0];
2546 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
2547 if (r->was_packed)
2548 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
2549 }
2550 src_tmp.Rects = NULL;
2551 }
2552
2553 // End packing
2554 stbtt_PackEnd(&spc);
2555 buf_rects.clear();
2556
2557 // 9. Setup ImFont and glyphs for runtime
2558 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2559 {
2560 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2561 if (src_tmp.GlyphsCount == 0)
2562 continue;
2563
2564 // When merging fonts with MergeMode=true:
2565 // - We can have multiple input fonts writing into a same destination font.
2566 // - dst_font->ConfigData is != from cfg which is our source configuration.
2567 ImFontConfig& cfg = atlas->ConfigData[src_i];
2568 ImFont* dst_font = cfg.DstFont;
2569
2570 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2571 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2572 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2573
2574 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2575 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2576 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2577 const float font_off_x = cfg.GlyphOffset.x;
2578 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
2579
2580 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2581 {
2582 // Register glyph
2583 const int codepoint = src_tmp.GlyphsList[glyph_i];
2584 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2585 stbtt_aligned_quad q;
2586 float unused_x = 0.0f, unused_y = 0.0f;
2587 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
2588 dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
2589 }
2590 }
2591
2592 // Cleanup
2593 src_tmp_array.clear_destruct();
2594
2595 ImFontAtlasBuildFinish(atlas);
2596 return true;
2597 }
2598
ImFontAtlasGetBuilderForStbTruetype()2599 const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()
2600 {
2601 static ImFontBuilderIO io;
2602 io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype;
2603 return &io;
2604 }
2605
2606 #endif // IMGUI_ENABLE_STB_TRUETYPE
2607
ImFontAtlasBuildSetupFont(ImFontAtlas * atlas,ImFont * font,ImFontConfig * font_config,float ascent,float descent)2608 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2609 {
2610 if (!font_config->MergeMode)
2611 {
2612 font->ClearOutputData();
2613 font->FontSize = font_config->SizePixels;
2614 font->ConfigData = font_config;
2615 font->ConfigDataCount = 0;
2616 font->ContainerAtlas = atlas;
2617 font->Ascent = ascent;
2618 font->Descent = descent;
2619 }
2620 font->ConfigDataCount++;
2621 }
2622
ImFontAtlasBuildPackCustomRects(ImFontAtlas * atlas,void * stbrp_context_opaque)2623 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2624 {
2625 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2626 IM_ASSERT(pack_context != NULL);
2627
2628 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
2629 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2630
2631 ImVector<stbrp_rect> pack_rects;
2632 pack_rects.resize(user_rects.Size);
2633 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2634 for (int i = 0; i < user_rects.Size; i++)
2635 {
2636 pack_rects[i].w = user_rects[i].Width;
2637 pack_rects[i].h = user_rects[i].Height;
2638 }
2639 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2640 for (int i = 0; i < pack_rects.Size; i++)
2641 if (pack_rects[i].was_packed)
2642 {
2643 user_rects[i].X = pack_rects[i].x;
2644 user_rects[i].Y = pack_rects[i].y;
2645 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2646 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2647 }
2648 }
2649
ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas * atlas,int x,int y,int w,int h,const char * in_str,char in_marker_char,unsigned char in_marker_pixel_value)2650 void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
2651 {
2652 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2653 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2654 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
2655 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2656 for (int off_x = 0; off_x < w; off_x++)
2657 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
2658 }
2659
ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas * atlas,int x,int y,int w,int h,const char * in_str,char in_marker_char,unsigned int in_marker_pixel_value)2660 void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value)
2661 {
2662 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2663 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2664 unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth);
2665 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2666 for (int off_x = 0; off_x < w; off_x++)
2667 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS;
2668 }
2669
ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas * atlas)2670 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2671 {
2672 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
2673 IM_ASSERT(r->IsPacked());
2674
2675 const int w = atlas->TexWidth;
2676 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2677 {
2678 // Render/copy pixels
2679 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2680 const int x_for_white = r->X;
2681 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2682 if (atlas->TexPixelsAlpha8 != NULL)
2683 {
2684 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
2685 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
2686 }
2687 else
2688 {
2689 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE);
2690 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE);
2691 }
2692 }
2693 else
2694 {
2695 // Render 4 white pixels
2696 IM_ASSERT(r->Width == 2 && r->Height == 2);
2697 const int offset = (int)r->X + (int)r->Y * w;
2698 if (atlas->TexPixelsAlpha8 != NULL)
2699 {
2700 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2701 }
2702 else
2703 {
2704 atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
2705 }
2706 }
2707 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
2708 }
2709
ImFontAtlasBuildRenderLinesTexData(ImFontAtlas * atlas)2710 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
2711 {
2712 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
2713 return;
2714
2715 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
2716 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
2717 IM_ASSERT(r->IsPacked());
2718 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
2719 {
2720 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
2721 unsigned int y = n;
2722 unsigned int line_width = n;
2723 unsigned int pad_left = (r->Width - line_width) / 2;
2724 unsigned int pad_right = r->Width - (pad_left + line_width);
2725
2726 // Write each slice
2727 IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
2728 if (atlas->TexPixelsAlpha8 != NULL)
2729 {
2730 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
2731 for (unsigned int i = 0; i < pad_left; i++)
2732 *(write_ptr + i) = 0x00;
2733
2734 for (unsigned int i = 0; i < line_width; i++)
2735 *(write_ptr + pad_left + i) = 0xFF;
2736
2737 for (unsigned int i = 0; i < pad_right; i++)
2738 *(write_ptr + pad_left + line_width + i) = 0x00;
2739 }
2740 else
2741 {
2742 unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
2743 for (unsigned int i = 0; i < pad_left; i++)
2744 *(write_ptr + i) = IM_COL32_BLACK_TRANS;
2745
2746 for (unsigned int i = 0; i < line_width; i++)
2747 *(write_ptr + pad_left + i) = IM_COL32_WHITE;
2748
2749 for (unsigned int i = 0; i < pad_right; i++)
2750 *(write_ptr + pad_left + line_width + i) = IM_COL32_BLACK_TRANS;
2751 }
2752
2753 // Calculate UVs for this line
2754 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
2755 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
2756 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
2757 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
2758 }
2759 }
2760
2761 // Note: this is called / shared by both the stb_truetype and the FreeType builder
ImFontAtlasBuildInit(ImFontAtlas * atlas)2762 void ImFontAtlasBuildInit(ImFontAtlas* atlas)
2763 {
2764 // Register texture region for mouse cursors or standard white pixels
2765 if (atlas->PackIdMouseCursors < 0)
2766 {
2767 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2768 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2769 else
2770 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
2771 }
2772
2773 // Register texture region for thick lines
2774 // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
2775 if (atlas->PackIdLines < 0)
2776 {
2777 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
2778 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
2779 }
2780 }
2781
2782 // This is called/shared by both the stb_truetype and the FreeType builder.
ImFontAtlasBuildFinish(ImFontAtlas * atlas)2783 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2784 {
2785 // Render into our custom data blocks
2786 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL);
2787 ImFontAtlasBuildRenderDefaultTexData(atlas);
2788 ImFontAtlasBuildRenderLinesTexData(atlas);
2789
2790 // Register custom rectangle glyphs
2791 for (int i = 0; i < atlas->CustomRects.Size; i++)
2792 {
2793 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
2794 if (r->Font == NULL || r->GlyphID == 0)
2795 continue;
2796
2797 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
2798 IM_ASSERT(r->Font->ContainerAtlas == atlas);
2799 ImVec2 uv0, uv1;
2800 atlas->CalcCustomRectUV(r, &uv0, &uv1);
2801 r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
2802 }
2803
2804 // Build all fonts lookup tables
2805 for (int i = 0; i < atlas->Fonts.Size; i++)
2806 if (atlas->Fonts[i]->DirtyLookupTables)
2807 atlas->Fonts[i]->BuildLookupTable();
2808
2809 atlas->TexReady = true;
2810 }
2811
2812 // Retrieve list of range (2 int per range, values are inclusive)
GetGlyphRangesDefault()2813 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2814 {
2815 static const ImWchar ranges[] =
2816 {
2817 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2818 0,
2819 };
2820 return &ranges[0];
2821 }
2822
GetGlyphRangesKorean()2823 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2824 {
2825 static const ImWchar ranges[] =
2826 {
2827 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2828 0x3131, 0x3163, // Korean alphabets
2829 0xAC00, 0xD7A3, // Korean characters
2830 0xFFFD, 0xFFFD, // Invalid
2831 0,
2832 };
2833 return &ranges[0];
2834 }
2835
GetGlyphRangesChineseFull()2836 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2837 {
2838 static const ImWchar ranges[] =
2839 {
2840 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2841 0x2000, 0x206F, // General Punctuation
2842 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2843 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2844 0xFF00, 0xFFEF, // Half-width characters
2845 0xFFFD, 0xFFFD, // Invalid
2846 0x4e00, 0x9FAF, // CJK Ideograms
2847 0,
2848 };
2849 return &ranges[0];
2850 }
2851
UnpackAccumulativeOffsetsIntoRanges(int base_codepoint,const short * accumulative_offsets,int accumulative_offsets_count,ImWchar * out_ranges)2852 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2853 {
2854 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2855 {
2856 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2857 base_codepoint += accumulative_offsets[n];
2858 }
2859 out_ranges[0] = 0;
2860 }
2861
2862 //-------------------------------------------------------------------------
2863 // [SECTION] ImFontAtlas glyph ranges helpers
2864 //-------------------------------------------------------------------------
2865
GetGlyphRangesChineseSimplifiedCommon()2866 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2867 {
2868 // Store 2500 regularly used characters for Simplified Chinese.
2869 // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
2870 // This table covers 97.97% of all characters used during the month in July, 1987.
2871 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2872 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2873 static const short accumulative_offsets_from_0x4E00[] =
2874 {
2875 0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
2876 1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
2877 2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
2878 1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
2879 3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
2880 1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
2881 1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
2882 2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
2883 27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
2884 3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
2885 1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
2886 176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
2887 5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
2888 1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
2889 6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
2890 2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
2891 2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
2892 2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
2893 3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
2894 3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
2895 3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
2896 1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
2897 140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
2898 5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
2899 2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
2900 4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
2901 2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
2902 4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
2903 3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
2904 3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
2905 2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
2906 5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
2907 3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
2908 1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
2909 4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
2910 4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
2911 26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
2912 3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
2913 2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
2914 10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
2915 };
2916 static ImWchar base_ranges[] = // not zero-terminated
2917 {
2918 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2919 0x2000, 0x206F, // General Punctuation
2920 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2921 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2922 0xFF00, 0xFFEF, // Half-width characters
2923 0xFFFD, 0xFFFD // Invalid
2924 };
2925 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2926 if (!full_ranges[0])
2927 {
2928 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2929 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2930 }
2931 return &full_ranges[0];
2932 }
2933
GetGlyphRangesJapanese()2934 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2935 {
2936 // 2999 ideograms code points for Japanese
2937 // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
2938 // - 863 Jinmeiyo (meaning "for personal name") Kanji code points
2939 // - Sourced from the character information database of the Information-technology Promotion Agency, Japan
2940 // - https://mojikiban.ipa.go.jp/mji/
2941 // - Available under the terms of the Creative Commons Attribution-ShareAlike 2.1 Japan (CC BY-SA 2.1 JP).
2942 // - https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en
2943 // - https://creativecommons.org/licenses/by-sa/2.1/jp/legalcode
2944 // - You can generate this code by the script at:
2945 // - https://github.com/vaiorabbit/everyday_use_kanji
2946 // - References:
2947 // - List of Joyo Kanji
2948 // - (Official list by the Agency for Cultural Affairs) https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kakuki/14/tosin02/index.html
2949 // - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
2950 // - List of Jinmeiyo Kanji
2951 // - (Official list by the Ministry of Justice) http://www.moj.go.jp/MINJI/minji86.html
2952 // - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
2953 // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
2954 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2955 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2956 static const short accumulative_offsets_from_0x4E00[] =
2957 {
2958 0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1,
2959 1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3,
2960 2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8,
2961 2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5,
2962 2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1,
2963 1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30,
2964 2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3,
2965 13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4,
2966 5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14,
2967 2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1,
2968 1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1,
2969 7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1,
2970 1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1,
2971 6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2,
2972 10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7,
2973 2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5,
2974 3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1,
2975 6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7,
2976 4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2,
2977 4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5,
2978 1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6,
2979 12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2,
2980 1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16,
2981 22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11,
2982 2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18,
2983 18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9,
2984 14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3,
2985 1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6,
2986 40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1,
2987 12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8,
2988 2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1,
2989 1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10,
2990 1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5,
2991 3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2,
2992 14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5,
2993 12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1,
2994 2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5,
2995 1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4,
2996 3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7,
2997 2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5,
2998 13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13,
2999 18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21,
3000 37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1,
3001 5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38,
3002 32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4,
3003 1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4,
3004 4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,
3005 3,2,1,1,1,1,2,1,1,
3006 };
3007 static ImWchar base_ranges[] = // not zero-terminated
3008 {
3009 0x0020, 0x00FF, // Basic Latin + Latin Supplement
3010 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
3011 0x31F0, 0x31FF, // Katakana Phonetic Extensions
3012 0xFF00, 0xFFEF, // Half-width characters
3013 0xFFFD, 0xFFFD // Invalid
3014 };
3015 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
3016 if (!full_ranges[0])
3017 {
3018 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
3019 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
3020 }
3021 return &full_ranges[0];
3022 }
3023
GetGlyphRangesCyrillic()3024 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
3025 {
3026 static const ImWchar ranges[] =
3027 {
3028 0x0020, 0x00FF, // Basic Latin + Latin Supplement
3029 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
3030 0x2DE0, 0x2DFF, // Cyrillic Extended-A
3031 0xA640, 0xA69F, // Cyrillic Extended-B
3032 0,
3033 };
3034 return &ranges[0];
3035 }
3036
GetGlyphRangesThai()3037 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
3038 {
3039 static const ImWchar ranges[] =
3040 {
3041 0x0020, 0x00FF, // Basic Latin
3042 0x2010, 0x205E, // Punctuations
3043 0x0E00, 0x0E7F, // Thai
3044 0,
3045 };
3046 return &ranges[0];
3047 }
3048
GetGlyphRangesVietnamese()3049 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
3050 {
3051 static const ImWchar ranges[] =
3052 {
3053 0x0020, 0x00FF, // Basic Latin
3054 0x0102, 0x0103,
3055 0x0110, 0x0111,
3056 0x0128, 0x0129,
3057 0x0168, 0x0169,
3058 0x01A0, 0x01A1,
3059 0x01AF, 0x01B0,
3060 0x1EA0, 0x1EF9,
3061 0,
3062 };
3063 return &ranges[0];
3064 }
3065
3066 //-----------------------------------------------------------------------------
3067 // [SECTION] ImFontGlyphRangesBuilder
3068 //-----------------------------------------------------------------------------
3069
AddText(const char * text,const char * text_end)3070 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
3071 {
3072 while (text_end ? (text < text_end) : *text)
3073 {
3074 unsigned int c = 0;
3075 int c_len = ImTextCharFromUtf8(&c, text, text_end);
3076 text += c_len;
3077 if (c_len == 0)
3078 break;
3079 AddChar((ImWchar)c);
3080 }
3081 }
3082
AddRanges(const ImWchar * ranges)3083 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
3084 {
3085 for (; ranges[0]; ranges += 2)
3086 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
3087 AddChar(c);
3088 }
3089
BuildRanges(ImVector<ImWchar> * out_ranges)3090 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
3091 {
3092 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
3093 for (int n = 0; n <= max_codepoint; n++)
3094 if (GetBit(n))
3095 {
3096 out_ranges->push_back((ImWchar)n);
3097 while (n < max_codepoint && GetBit(n + 1))
3098 n++;
3099 out_ranges->push_back((ImWchar)n);
3100 }
3101 out_ranges->push_back(0);
3102 }
3103
3104 //-----------------------------------------------------------------------------
3105 // [SECTION] ImFont
3106 //-----------------------------------------------------------------------------
3107
ImFont()3108 ImFont::ImFont()
3109 {
3110 FontSize = 0.0f;
3111 FallbackAdvanceX = 0.0f;
3112 FallbackChar = (ImWchar)-1;
3113 EllipsisChar = (ImWchar)-1;
3114 DotChar = (ImWchar)-1;
3115 FallbackGlyph = NULL;
3116 ContainerAtlas = NULL;
3117 ConfigData = NULL;
3118 ConfigDataCount = 0;
3119 DirtyLookupTables = false;
3120 Scale = 1.0f;
3121 Ascent = Descent = 0.0f;
3122 MetricsTotalSurface = 0;
3123 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
3124 }
3125
~ImFont()3126 ImFont::~ImFont()
3127 {
3128 ClearOutputData();
3129 }
3130
ClearOutputData()3131 void ImFont::ClearOutputData()
3132 {
3133 FontSize = 0.0f;
3134 FallbackAdvanceX = 0.0f;
3135 Glyphs.clear();
3136 IndexAdvanceX.clear();
3137 IndexLookup.clear();
3138 FallbackGlyph = NULL;
3139 ContainerAtlas = NULL;
3140 DirtyLookupTables = true;
3141 Ascent = Descent = 0.0f;
3142 MetricsTotalSurface = 0;
3143 }
3144
FindFirstExistingGlyph(ImFont * font,const ImWchar * candidate_chars,int candidate_chars_count)3145 static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count)
3146 {
3147 for (int n = 0; n < candidate_chars_count; n++)
3148 if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL)
3149 return candidate_chars[n];
3150 return (ImWchar)-1;
3151 }
3152
BuildLookupTable()3153 void ImFont::BuildLookupTable()
3154 {
3155 int max_codepoint = 0;
3156 for (int i = 0; i != Glyphs.Size; i++)
3157 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
3158
3159 // Build lookup table
3160 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
3161 IndexAdvanceX.clear();
3162 IndexLookup.clear();
3163 DirtyLookupTables = false;
3164 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
3165 GrowIndex(max_codepoint + 1);
3166 for (int i = 0; i < Glyphs.Size; i++)
3167 {
3168 int codepoint = (int)Glyphs[i].Codepoint;
3169 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
3170 IndexLookup[codepoint] = (ImWchar)i;
3171
3172 // Mark 4K page as used
3173 const int page_n = codepoint / 4096;
3174 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
3175 }
3176
3177 // Create a glyph to handle TAB
3178 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
3179 if (FindGlyph((ImWchar)' '))
3180 {
3181 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
3182 Glyphs.resize(Glyphs.Size + 1);
3183 ImFontGlyph& tab_glyph = Glyphs.back();
3184 tab_glyph = *FindGlyph((ImWchar)' ');
3185 tab_glyph.Codepoint = '\t';
3186 tab_glyph.AdvanceX *= IM_TABSIZE;
3187 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
3188 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
3189 }
3190
3191 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
3192 SetGlyphVisible((ImWchar)' ', false);
3193 SetGlyphVisible((ImWchar)'\t', false);
3194
3195 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
3196 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
3197 // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
3198 const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
3199 const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E };
3200 if (EllipsisChar == (ImWchar)-1)
3201 EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars));
3202 if (DotChar == (ImWchar)-1)
3203 DotChar = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars));
3204
3205 // Setup fallback character
3206 const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
3207 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
3208 if (FallbackGlyph == NULL)
3209 {
3210 FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars));
3211 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
3212 if (FallbackGlyph == NULL)
3213 {
3214 FallbackGlyph = &Glyphs.back();
3215 FallbackChar = (ImWchar)FallbackGlyph->Codepoint;
3216 }
3217 }
3218
3219 FallbackAdvanceX = FallbackGlyph->AdvanceX;
3220 for (int i = 0; i < max_codepoint + 1; i++)
3221 if (IndexAdvanceX[i] < 0.0f)
3222 IndexAdvanceX[i] = FallbackAdvanceX;
3223 }
3224
3225 // API is designed this way to avoid exposing the 4K page size
3226 // e.g. use with IsGlyphRangeUnused(0, 255)
IsGlyphRangeUnused(unsigned int c_begin,unsigned int c_last)3227 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
3228 {
3229 unsigned int page_begin = (c_begin / 4096);
3230 unsigned int page_last = (c_last / 4096);
3231 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
3232 if ((page_n >> 3) < sizeof(Used4kPagesMap))
3233 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
3234 return false;
3235 return true;
3236 }
3237
SetGlyphVisible(ImWchar c,bool visible)3238 void ImFont::SetGlyphVisible(ImWchar c, bool visible)
3239 {
3240 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
3241 glyph->Visible = visible ? 1 : 0;
3242 }
3243
GrowIndex(int new_size)3244 void ImFont::GrowIndex(int new_size)
3245 {
3246 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
3247 if (new_size <= IndexLookup.Size)
3248 return;
3249 IndexAdvanceX.resize(new_size, -1.0f);
3250 IndexLookup.resize(new_size, (ImWchar)-1);
3251 }
3252
3253 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
3254 // Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
3255 // 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
AddGlyph(const ImFontConfig * cfg,ImWchar codepoint,float x0,float y0,float x1,float y1,float u0,float v0,float u1,float v1,float advance_x)3256 void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
3257 {
3258 if (cfg != NULL)
3259 {
3260 // Clamp & recenter if needed
3261 const float advance_x_original = advance_x;
3262 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
3263 if (advance_x != advance_x_original)
3264 {
3265 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
3266 x0 += char_off_x;
3267 x1 += char_off_x;
3268 }
3269
3270 // Snap to pixel
3271 if (cfg->PixelSnapH)
3272 advance_x = IM_ROUND(advance_x);
3273
3274 // Bake spacing
3275 advance_x += cfg->GlyphExtraSpacing.x;
3276 }
3277
3278 Glyphs.resize(Glyphs.Size + 1);
3279 ImFontGlyph& glyph = Glyphs.back();
3280 glyph.Codepoint = (unsigned int)codepoint;
3281 glyph.Visible = (x0 != x1) && (y0 != y1);
3282 glyph.Colored = false;
3283 glyph.X0 = x0;
3284 glyph.Y0 = y0;
3285 glyph.X1 = x1;
3286 glyph.Y1 = y1;
3287 glyph.U0 = u0;
3288 glyph.V0 = v0;
3289 glyph.U1 = u1;
3290 glyph.V1 = v1;
3291 glyph.AdvanceX = advance_x;
3292
3293 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
3294 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
3295 float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
3296 DirtyLookupTables = true;
3297 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
3298 }
3299
AddRemapChar(ImWchar dst,ImWchar src,bool overwrite_dst)3300 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
3301 {
3302 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
3303 unsigned int index_size = (unsigned int)IndexLookup.Size;
3304
3305 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
3306 return;
3307 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
3308 return;
3309
3310 GrowIndex(dst + 1);
3311 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
3312 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
3313 }
3314
FindGlyph(ImWchar c) const3315 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
3316 {
3317 if (c >= (size_t)IndexLookup.Size)
3318 return FallbackGlyph;
3319 const ImWchar i = IndexLookup.Data[c];
3320 if (i == (ImWchar)-1)
3321 return FallbackGlyph;
3322 return &Glyphs.Data[i];
3323 }
3324
FindGlyphNoFallback(ImWchar c) const3325 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
3326 {
3327 if (c >= (size_t)IndexLookup.Size)
3328 return NULL;
3329 const ImWchar i = IndexLookup.Data[c];
3330 if (i == (ImWchar)-1)
3331 return NULL;
3332 return &Glyphs.Data[i];
3333 }
3334
CalcWordWrapPositionA(float scale,const char * text,const char * text_end,float wrap_width) const3335 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
3336 {
3337 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
3338 // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
3339
3340 // For references, possible wrap point marked with ^
3341 // "aaa bbb, ccc,ddd. eee fff. ggg!"
3342 // ^ ^ ^ ^ ^__ ^ ^
3343
3344 // List of hardcoded separators: .,;!?'"
3345
3346 // Skip extra blanks after a line returns (that includes not counting them in width computation)
3347 // e.g. "Hello world" --> "Hello" "World"
3348
3349 // Cut words that cannot possibly fit within one line.
3350 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
3351
3352 float line_width = 0.0f;
3353 float word_width = 0.0f;
3354 float blank_width = 0.0f;
3355 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
3356
3357 const char* word_end = text;
3358 const char* prev_word_end = NULL;
3359 bool inside_word = true;
3360
3361 const char* s = text;
3362 while (s < text_end)
3363 {
3364 unsigned int c = (unsigned int)*s;
3365 const char* next_s;
3366 if (c < 0x80)
3367 next_s = s + 1;
3368 else
3369 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
3370 if (c == 0)
3371 break;
3372
3373 if (c < 32)
3374 {
3375 if (c == '\n')
3376 {
3377 line_width = word_width = blank_width = 0.0f;
3378 inside_word = true;
3379 s = next_s;
3380 continue;
3381 }
3382 if (c == '\r')
3383 {
3384 s = next_s;
3385 continue;
3386 }
3387 }
3388
3389 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
3390 if (ImCharIsBlankW(c))
3391 {
3392 if (inside_word)
3393 {
3394 line_width += blank_width;
3395 blank_width = 0.0f;
3396 word_end = s;
3397 }
3398 blank_width += char_width;
3399 inside_word = false;
3400 }
3401 else
3402 {
3403 word_width += char_width;
3404 if (inside_word)
3405 {
3406 word_end = next_s;
3407 }
3408 else
3409 {
3410 prev_word_end = word_end;
3411 line_width += word_width + blank_width;
3412 word_width = blank_width = 0.0f;
3413 }
3414
3415 // Allow wrapping after punctuation.
3416 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
3417 }
3418
3419 // We ignore blank width at the end of the line (they can be skipped)
3420 if (line_width + word_width > wrap_width)
3421 {
3422 // Words that cannot possibly fit within an entire line will be cut anywhere.
3423 if (word_width < wrap_width)
3424 s = prev_word_end ? prev_word_end : word_end;
3425 break;
3426 }
3427
3428 s = next_s;
3429 }
3430
3431 return s;
3432 }
3433
CalcTextSizeA(float size,float max_width,float wrap_width,const char * text_begin,const char * text_end,const char ** remaining) const3434 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
3435 {
3436 if (!text_end)
3437 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
3438
3439 const float line_height = size;
3440 const float scale = size / FontSize;
3441
3442 ImVec2 text_size = ImVec2(0, 0);
3443 float line_width = 0.0f;
3444
3445 const bool word_wrap_enabled = (wrap_width > 0.0f);
3446 const char* word_wrap_eol = NULL;
3447
3448 const char* s = text_begin;
3449 while (s < text_end)
3450 {
3451 if (word_wrap_enabled)
3452 {
3453 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
3454 if (!word_wrap_eol)
3455 {
3456 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
3457 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3458 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
3459 }
3460
3461 if (s >= word_wrap_eol)
3462 {
3463 if (text_size.x < line_width)
3464 text_size.x = line_width;
3465 text_size.y += line_height;
3466 line_width = 0.0f;
3467 word_wrap_eol = NULL;
3468
3469 // Wrapping skips upcoming blanks
3470 while (s < text_end)
3471 {
3472 const char c = *s;
3473 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3474 }
3475 continue;
3476 }
3477 }
3478
3479 // Decode and advance source
3480 const char* prev_s = s;
3481 unsigned int c = (unsigned int)*s;
3482 if (c < 0x80)
3483 {
3484 s += 1;
3485 }
3486 else
3487 {
3488 s += ImTextCharFromUtf8(&c, s, text_end);
3489 if (c == 0) // Malformed UTF-8?
3490 break;
3491 }
3492
3493 if (c < 32)
3494 {
3495 if (c == '\n')
3496 {
3497 text_size.x = ImMax(text_size.x, line_width);
3498 text_size.y += line_height;
3499 line_width = 0.0f;
3500 continue;
3501 }
3502 if (c == '\r')
3503 continue;
3504 }
3505
3506 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
3507 if (line_width + char_width >= max_width)
3508 {
3509 s = prev_s;
3510 break;
3511 }
3512
3513 line_width += char_width;
3514 }
3515
3516 if (text_size.x < line_width)
3517 text_size.x = line_width;
3518
3519 if (line_width > 0 || text_size.y == 0.0f)
3520 text_size.y += line_height;
3521
3522 if (remaining)
3523 *remaining = s;
3524
3525 return text_size;
3526 }
3527
3528 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
RenderChar(ImDrawList * draw_list,float size,ImVec2 pos,ImU32 col,ImWchar c) const3529 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
3530 {
3531 const ImFontGlyph* glyph = FindGlyph(c);
3532 if (!glyph || !glyph->Visible)
3533 return;
3534 if (glyph->Colored)
3535 col |= ~IM_COL32_A_MASK;
3536 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
3537 pos.x = IM_FLOOR(pos.x);
3538 pos.y = IM_FLOOR(pos.y);
3539 draw_list->PrimReserve(6, 4);
3540 draw_list->PrimRectUV(ImVec2(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale), ImVec2(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
3541 }
3542
3543 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
RenderText(ImDrawList * draw_list,float size,ImVec2 pos,ImU32 col,const ImVec4 & clip_rect,const char * text_begin,const char * text_end,float wrap_width,bool cpu_fine_clip) const3544 void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
3545 {
3546 if (!text_end)
3547 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
3548
3549 // Align to be pixel perfect
3550 pos.x = IM_FLOOR(pos.x);
3551 pos.y = IM_FLOOR(pos.y);
3552 float x = pos.x;
3553 float y = pos.y;
3554 if (y > clip_rect.w)
3555 return;
3556
3557 const float scale = size / FontSize;
3558 const float line_height = FontSize * scale;
3559 const bool word_wrap_enabled = (wrap_width > 0.0f);
3560 const char* word_wrap_eol = NULL;
3561
3562 // Fast-forward to first visible line
3563 const char* s = text_begin;
3564 if (y + line_height < clip_rect.y && !word_wrap_enabled)
3565 while (y + line_height < clip_rect.y && s < text_end)
3566 {
3567 s = (const char*)memchr(s, '\n', text_end - s);
3568 s = s ? s + 1 : text_end;
3569 y += line_height;
3570 }
3571
3572 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
3573 // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
3574 if (text_end - s > 10000 && !word_wrap_enabled)
3575 {
3576 const char* s_end = s;
3577 float y_end = y;
3578 while (y_end < clip_rect.w && s_end < text_end)
3579 {
3580 s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
3581 s_end = s_end ? s_end + 1 : text_end;
3582 y_end += line_height;
3583 }
3584 text_end = s_end;
3585 }
3586 if (s == text_end)
3587 return;
3588
3589 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
3590 const int vtx_count_max = (int)(text_end - s) * 4;
3591 const int idx_count_max = (int)(text_end - s) * 6;
3592 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
3593 draw_list->PrimReserve(idx_count_max, vtx_count_max);
3594
3595 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
3596 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
3597 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
3598
3599 const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
3600
3601 while (s < text_end)
3602 {
3603 if (word_wrap_enabled)
3604 {
3605 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
3606 if (!word_wrap_eol)
3607 {
3608 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
3609 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3610 word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
3611 }
3612
3613 if (s >= word_wrap_eol)
3614 {
3615 x = pos.x;
3616 y += line_height;
3617 word_wrap_eol = NULL;
3618
3619 // Wrapping skips upcoming blanks
3620 while (s < text_end)
3621 {
3622 const char c = *s;
3623 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3624 }
3625 continue;
3626 }
3627 }
3628
3629 // Decode and advance source
3630 unsigned int c = (unsigned int)*s;
3631 if (c < 0x80)
3632 {
3633 s += 1;
3634 }
3635 else
3636 {
3637 s += ImTextCharFromUtf8(&c, s, text_end);
3638 if (c == 0) // Malformed UTF-8?
3639 break;
3640 }
3641
3642 if (c < 32)
3643 {
3644 if (c == '\n')
3645 {
3646 x = pos.x;
3647 y += line_height;
3648 if (y > clip_rect.w)
3649 break; // break out of main loop
3650 continue;
3651 }
3652 if (c == '\r')
3653 continue;
3654 }
3655
3656 const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
3657 if (glyph == NULL)
3658 continue;
3659
3660 float char_width = glyph->AdvanceX * scale;
3661 if (glyph->Visible)
3662 {
3663 // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
3664 float x1 = x + glyph->X0 * scale;
3665 float x2 = x + glyph->X1 * scale;
3666 float y1 = y + glyph->Y0 * scale;
3667 float y2 = y + glyph->Y1 * scale;
3668 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
3669 {
3670 // Render a character
3671 float u1 = glyph->U0;
3672 float v1 = glyph->V0;
3673 float u2 = glyph->U1;
3674 float v2 = glyph->V1;
3675
3676 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
3677 if (cpu_fine_clip)
3678 {
3679 if (x1 < clip_rect.x)
3680 {
3681 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
3682 x1 = clip_rect.x;
3683 }
3684 if (y1 < clip_rect.y)
3685 {
3686 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
3687 y1 = clip_rect.y;
3688 }
3689 if (x2 > clip_rect.z)
3690 {
3691 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
3692 x2 = clip_rect.z;
3693 }
3694 if (y2 > clip_rect.w)
3695 {
3696 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
3697 y2 = clip_rect.w;
3698 }
3699 if (y1 >= y2)
3700 {
3701 x += char_width;
3702 continue;
3703 }
3704 }
3705
3706 // Support for untinted glyphs
3707 ImU32 glyph_col = glyph->Colored ? col_untinted : col;
3708
3709 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
3710 {
3711 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
3712 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
3713 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
3714 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
3715 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
3716 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
3717 vtx_write += 4;
3718 vtx_current_idx += 4;
3719 idx_write += 6;
3720 }
3721 }
3722 }
3723 x += char_width;
3724 }
3725
3726 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
3727 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
3728 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
3729 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
3730 draw_list->_VtxWritePtr = vtx_write;
3731 draw_list->_IdxWritePtr = idx_write;
3732 draw_list->_VtxCurrentIdx = vtx_current_idx;
3733 }
3734
3735 //-----------------------------------------------------------------------------
3736 // [SECTION] ImGui Internal Render Helpers
3737 //-----------------------------------------------------------------------------
3738 // Vaguely redesigned to stop accessing ImGui global state:
3739 // - RenderArrow()
3740 // - RenderBullet()
3741 // - RenderCheckMark()
3742 // - RenderMouseCursor()
3743 // - RenderArrowDockMenu()
3744 // - RenderArrowPointingAt()
3745 // - RenderRectFilledRangeH()
3746 // - RenderRectFilledWithHole()
3747 //-----------------------------------------------------------------------------
3748 // Function in need of a redesign (legacy mess)
3749 // - RenderColorRectWithAlphaCheckerboard()
3750 //-----------------------------------------------------------------------------
3751
3752 // Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
RenderArrow(ImDrawList * draw_list,ImVec2 pos,ImU32 col,ImGuiDir dir,float scale)3753 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
3754 {
3755 const float h = draw_list->_Data->FontSize * 1.00f;
3756 float r = h * 0.40f * scale;
3757 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
3758
3759 ImVec2 a, b, c;
3760 switch (dir)
3761 {
3762 case ImGuiDir_Up:
3763 case ImGuiDir_Down:
3764 if (dir == ImGuiDir_Up) r = -r;
3765 a = ImVec2(+0.000f, +0.750f) * r;
3766 b = ImVec2(-0.866f, -0.750f) * r;
3767 c = ImVec2(+0.866f, -0.750f) * r;
3768 break;
3769 case ImGuiDir_Left:
3770 case ImGuiDir_Right:
3771 if (dir == ImGuiDir_Left) r = -r;
3772 a = ImVec2(+0.750f, +0.000f) * r;
3773 b = ImVec2(-0.750f, +0.866f) * r;
3774 c = ImVec2(-0.750f, -0.866f) * r;
3775 break;
3776 case ImGuiDir_None:
3777 case ImGuiDir_COUNT:
3778 IM_ASSERT(0);
3779 break;
3780 }
3781 draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
3782 }
3783
RenderBullet(ImDrawList * draw_list,ImVec2 pos,ImU32 col)3784 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
3785 {
3786 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
3787 }
3788
RenderCheckMark(ImDrawList * draw_list,ImVec2 pos,ImU32 col,float sz)3789 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
3790 {
3791 float thickness = ImMax(sz / 5.0f, 1.0f);
3792 sz -= thickness * 0.5f;
3793 pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
3794
3795 float third = sz / 3.0f;
3796 float bx = pos.x + third;
3797 float by = pos.y + sz - third * 0.5f;
3798 draw_list->PathLineTo(ImVec2(bx - third, by - third));
3799 draw_list->PathLineTo(ImVec2(bx, by));
3800 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
3801 draw_list->PathStroke(col, 0, thickness);
3802 }
3803
RenderMouseCursor(ImDrawList * draw_list,ImVec2 pos,float scale,ImGuiMouseCursor mouse_cursor,ImU32 col_fill,ImU32 col_border,ImU32 col_shadow)3804 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
3805 {
3806 if (mouse_cursor == ImGuiMouseCursor_None)
3807 return;
3808 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
3809
3810 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
3811 ImVec2 offset, size, uv[4];
3812 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
3813 {
3814 pos -= offset;
3815 ImTextureID tex_id = font_atlas->TexID;
3816 draw_list->PushTextureID(tex_id);
3817 draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
3818 draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
3819 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
3820 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
3821 draw_list->PopTextureID();
3822 }
3823 }
3824
3825 // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
RenderArrowPointingAt(ImDrawList * draw_list,ImVec2 pos,ImVec2 half_sz,ImGuiDir direction,ImU32 col)3826 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
3827 {
3828 switch (direction)
3829 {
3830 case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
3831 case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
3832 case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
3833 case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
3834 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
3835 }
3836 }
3837
3838 // This is less wide than RenderArrow() and we use in dock nodes instead of the regular RenderArrow() to denote a change of functionality,
3839 // and because the saved space means that the left-most tab label can stay at exactly the same position as the label of a loose window.
RenderArrowDockMenu(ImDrawList * draw_list,ImVec2 p_min,float sz,ImU32 col)3840 void ImGui::RenderArrowDockMenu(ImDrawList* draw_list, ImVec2 p_min, float sz, ImU32 col)
3841 {
3842 draw_list->AddRectFilled(p_min + ImVec2(sz * 0.20f, sz * 0.15f), p_min + ImVec2(sz * 0.80f, sz * 0.30f), col);
3843 RenderArrowPointingAt(draw_list, p_min + ImVec2(sz * 0.50f, sz * 0.85f), ImVec2(sz * 0.30f, sz * 0.40f), ImGuiDir_Down, col);
3844 }
3845
ImAcos01(float x)3846 static inline float ImAcos01(float x)
3847 {
3848 if (x <= 0.0f) return IM_PI * 0.5f;
3849 if (x >= 1.0f) return 0.0f;
3850 return ImAcos(x);
3851 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
3852 }
3853
3854 // FIXME: Cleanup and move code to ImDrawList.
RenderRectFilledRangeH(ImDrawList * draw_list,const ImRect & rect,ImU32 col,float x_start_norm,float x_end_norm,float rounding)3855 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
3856 {
3857 if (x_end_norm == x_start_norm)
3858 return;
3859 if (x_start_norm > x_end_norm)
3860 ImSwap(x_start_norm, x_end_norm);
3861
3862 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
3863 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
3864 if (rounding == 0.0f)
3865 {
3866 draw_list->AddRectFilled(p0, p1, col, 0.0f);
3867 return;
3868 }
3869
3870 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
3871 const float inv_rounding = 1.0f / rounding;
3872 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
3873 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
3874 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
3875 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
3876 if (arc0_b == arc0_e)
3877 {
3878 draw_list->PathLineTo(ImVec2(x0, p1.y));
3879 draw_list->PathLineTo(ImVec2(x0, p0.y));
3880 }
3881 else if (arc0_b == 0.0f && arc0_e == half_pi)
3882 {
3883 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
3884 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
3885 }
3886 else
3887 {
3888 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
3889 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
3890 }
3891 if (p1.x > rect.Min.x + rounding)
3892 {
3893 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
3894 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
3895 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
3896 if (arc1_b == arc1_e)
3897 {
3898 draw_list->PathLineTo(ImVec2(x1, p0.y));
3899 draw_list->PathLineTo(ImVec2(x1, p1.y));
3900 }
3901 else if (arc1_b == 0.0f && arc1_e == half_pi)
3902 {
3903 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
3904 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
3905 }
3906 else
3907 {
3908 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
3909 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
3910 }
3911 }
3912 draw_list->PathFillConvex(col);
3913 }
3914
RenderRectFilledWithHole(ImDrawList * draw_list,ImRect outer,ImRect inner,ImU32 col,float rounding)3915 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
3916 {
3917 const bool fill_L = (inner.Min.x > outer.Min.x);
3918 const bool fill_R = (inner.Max.x < outer.Max.x);
3919 const bool fill_U = (inner.Min.y > outer.Min.y);
3920 const bool fill_D = (inner.Max.y < outer.Max.y);
3921 if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft));
3922 if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight));
3923 if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight));
3924 if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight));
3925 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft);
3926 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight);
3927 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft);
3928 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight);
3929 }
3930
3931 // Helper for ColorPicker4()
3932 // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
3933 // Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
3934 // FIXME: uses ImGui::GetColorU32
RenderColorRectWithAlphaCheckerboard(ImDrawList * draw_list,ImVec2 p_min,ImVec2 p_max,ImU32 col,float grid_step,ImVec2 grid_off,float rounding,ImDrawFlags flags)3935 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
3936 {
3937 if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
3938 flags = ImDrawFlags_RoundCornersDefault_;
3939 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
3940 {
3941 ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
3942 ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
3943 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags);
3944
3945 int yi = 0;
3946 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
3947 {
3948 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
3949 if (y2 <= y1)
3950 continue;
3951 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
3952 {
3953 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
3954 if (x2 <= x1)
3955 continue;
3956 ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
3957 if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
3958 if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
3959
3960 // Combine flags
3961 cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
3962 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags);
3963 }
3964 }
3965 }
3966 else
3967 {
3968 draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
3969 }
3970 }
3971
3972 //-----------------------------------------------------------------------------
3973 // [SECTION] Decompression code
3974 //-----------------------------------------------------------------------------
3975 // Compressed with stb_compress() then converted to a C array and encoded as base85.
3976 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
3977 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3978 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
3979 //-----------------------------------------------------------------------------
3980
stb_decompress_length(const unsigned char * input)3981 static unsigned int stb_decompress_length(const unsigned char *input)
3982 {
3983 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
3984 }
3985
3986 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
3987 static const unsigned char *stb__barrier_in_b;
3988 static unsigned char *stb__dout;
stb__match(const unsigned char * data,unsigned int length)3989 static void stb__match(const unsigned char *data, unsigned int length)
3990 {
3991 // INVERSE of memmove... write each byte before copying the next...
3992 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3993 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3994 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
3995 while (length--) *stb__dout++ = *data++;
3996 }
3997
stb__lit(const unsigned char * data,unsigned int length)3998 static void stb__lit(const unsigned char *data, unsigned int length)
3999 {
4000 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
4001 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
4002 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
4003 memcpy(stb__dout, data, length);
4004 stb__dout += length;
4005 }
4006
4007 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
4008 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
4009 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
4010
stb_decompress_token(const unsigned char * i)4011 static const unsigned char *stb_decompress_token(const unsigned char *i)
4012 {
4013 if (*i >= 0x20) { // use fewer if's for cases that expand small
4014 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
4015 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
4016 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
4017 } else { // more ifs for cases that expand large, since overhead is amortized
4018 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
4019 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
4020 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
4021 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
4022 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
4023 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
4024 }
4025 return i;
4026 }
4027
stb_adler32(unsigned int adler32,unsigned char * buffer,unsigned int buflen)4028 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
4029 {
4030 const unsigned long ADLER_MOD = 65521;
4031 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
4032 unsigned long blocklen = buflen % 5552;
4033
4034 unsigned long i;
4035 while (buflen) {
4036 for (i=0; i + 7 < blocklen; i += 8) {
4037 s1 += buffer[0], s2 += s1;
4038 s1 += buffer[1], s2 += s1;
4039 s1 += buffer[2], s2 += s1;
4040 s1 += buffer[3], s2 += s1;
4041 s1 += buffer[4], s2 += s1;
4042 s1 += buffer[5], s2 += s1;
4043 s1 += buffer[6], s2 += s1;
4044 s1 += buffer[7], s2 += s1;
4045
4046 buffer += 8;
4047 }
4048
4049 for (; i < blocklen; ++i)
4050 s1 += *buffer++, s2 += s1;
4051
4052 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
4053 buflen -= blocklen;
4054 blocklen = 5552;
4055 }
4056 return (unsigned int)(s2 << 16) + (unsigned int)s1;
4057 }
4058
stb_decompress(unsigned char * output,const unsigned char * i,unsigned int)4059 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
4060 {
4061 if (stb__in4(0) != 0x57bC0000) return 0;
4062 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
4063 const unsigned int olen = stb_decompress_length(i);
4064 stb__barrier_in_b = i;
4065 stb__barrier_out_e = output + olen;
4066 stb__barrier_out_b = output;
4067 i += 16;
4068
4069 stb__dout = output;
4070 for (;;) {
4071 const unsigned char *old_i = i;
4072 i = stb_decompress_token(i);
4073 if (i == old_i) {
4074 if (*i == 0x05 && i[1] == 0xfa) {
4075 IM_ASSERT(stb__dout == output + olen);
4076 if (stb__dout != output + olen) return 0;
4077 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
4078 return 0;
4079 return olen;
4080 } else {
4081 IM_ASSERT(0); /* NOTREACHED */
4082 return 0;
4083 }
4084 }
4085 IM_ASSERT(stb__dout <= output + olen);
4086 if (stb__dout > output + olen)
4087 return 0;
4088 }
4089 }
4090
4091 //-----------------------------------------------------------------------------
4092 // [SECTION] Default font data (ProggyClean.ttf)
4093 //-----------------------------------------------------------------------------
4094 // ProggyClean.ttf
4095 // Copyright (c) 2004, 2005 Tristan Grimmer
4096 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
4097 // Download and more information at http://upperbounds.net
4098 //-----------------------------------------------------------------------------
4099 // File: 'ProggyClean.ttf' (41208 bytes)
4100 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
4101 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
4102 //-----------------------------------------------------------------------------
4103 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
4104 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
4105 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
4106 "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL"
4107 "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N"
4108 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
4109 "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cXm#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
4110 "tm+/Us9pG)XPu`<0s-)WTt(gCRxIg(%6sfh=ktMKn3j)<6<b5Sk_/0(^]AaN#(p/L>&VZ>1i%h1S9u5o@YaaW$e+b<TWFn/Z:Oh(Cx2$lNEoN^e)#CFY@@I;BOQ*sRwZtZxRcU7uW6CX"
4111 "ow0i(?$Q[cjOd[P4d)]>ROPOpxTO7Stwi1::iB1q)C_=dV26J;2,]7op$]uQr@_V7$q^%lQwtuHY]=DX,n3L#0PHDO4f9>dC@O>HBuKPpP*E,N+b3L#lpR/MrTEH.IAQk.a>D[.e;mc."
4112 "x]Ip.PH^'/aqUO/$1WxLoW0[iLA<QT;5HKD+@qQ'NQ(3_PLhE48R.qAPSwQ0/WK?Z,[x?-J;jQTWA0X@KJ(_Y8N-:/M74:/-ZpKrUss?d#dZq]DAbkU*JqkL+nwX@@47`5>w=4h(9.`G"
4113 "CRUxHPeR`5Mjol(dUWxZa(>STrPkrJiWx`5U7F#.g*jrohGg`cg:lSTvEY/EV_7H4Q9[Z%cnv;JQYZ5q.l7Zeas:HOIZOB?G<Nald$qs]@]L<J7bR*>gv:[7MI2k).'2($5FNP&EQ(,)"
4114 "U]W]+fh18.vsai00);D3@4ku5P?DP8aJt+;qUM]=+b'8@;mViBKx0DE[-auGl8:PJ&Dj+M6OC]O^((##]`0i)drT;-7X`=-H3[igUnPG-NZlo.#k@h#=Ork$m>a>$-?Tm$UV(?#P6YY#"
4115 "'/###xe7q.73rI3*pP/$1>s9)W,JrM7SN]'/4C#v$U`0#V.[0>xQsH$fEmPMgY2u7Kh(G%siIfLSoS+MK2eTM$=5,M8p`A.;_R%#u[K#$x4AG8.kK/HSB==-'Ie/QTtG?-.*^N-4B/ZM"
4116 "_3YlQC7(p7q)&](`6_c)$/*JL(L-^(]$wIM`dPtOdGA,U3:w2M-0<q-]L_?^)1vw'.,MRsqVr.L;aN&#/EgJ)PBc[-f>+WomX2u7lqM2iEumMTcsF?-aT=Z-97UEnXglEn1K-bnEO`gu"
4117 "Ft(c%=;Am_Qs@jLooI&NX;]0#j4#F14;gl8-GQpgwhrq8'=l_f-b49'UOqkLu7-##oDY2L(te+Mch&gLYtJ,MEtJfLh'x'M=$CS-ZZ%P]8bZ>#S?YY#%Q&q'3^Fw&?D)UDNrocM3A76/"
4118 "/oL?#h7gl85[qW/NDOk%16ij;+:1a'iNIdb-ou8.P*w,v5#EI$TWS>Pot-R*H'-SEpA:g)f+O$%%`kA#G=8RMmG1&O`>to8bC]T&$,n.LoO>29sp3dt-52U%VM#q7'DHpg+#Z9%H[K<L"
4119 "%a2E-grWVM3@2=-k22tL]4$##6We'8UJCKE[d_=%wI;'6X-GsLX4j^SgJ$##R*w,vP3wK#iiW&#*h^D&R?jp7+/u&#(AP##XU8c$fSYW-J95_-Dp[g9wcO&#M-h1OcJlc-*vpw0xUX&#"
4120 "OQFKNX@QI'IoPp7nb,QU//MQ&ZDkKP)X<WSVL(68uVl&#c'[0#(s1X&xm$Y%B7*K:eDA323j998GXbA#pwMs-jgD$9QISB-A_(aN4xoFM^@C58D0+Q+q3n0#3U1InDjF682-SjMXJK)("
4121 "h$hxua_K]ul92%'BOU&#BRRh-slg8KDlr:%L71Ka:.A;%YULjDPmL<LYs8i#XwJOYaKPKc1h:'9Ke,g)b),78=I39B;xiY$bgGw-&.Zi9InXDuYa%G*f2Bq7mn9^#p1vv%#(Wi-;/Z5h"
4122 "o;#2:;%d	v68C5g?ntX0X)pT`;%pB3q7mgGN)3%(P8nTd5L7GeA-GL@+%J3u2:(Yf>et`e;)f#Km8&+DC$I46>#Kr]]u-[=99tts1.qb#q72g1WJO81q+eN'03'eM>&1XxY-caEnO"
4123 "j%2n8)),?ILR5^.Ibn<-X-Mq7[a82Lq:F&#ce+S9wsCK*x`569E8ew'He]h:sI[2LM$[guka3ZRd6:t%IG:;$%YiJ:Nq=?eAw;/:nnDq0(CYcMpG)qLN4$##&J<j$UpK<Q4a1]MupW^-"
4124 "sj_$%[HK%'F####QRZJ::Y3EGl4'@%FkiAOg#p[##O`gukTfBHagL<LHw%q&OV0##F=6/:chIm0@eCP8X]:kFI%hl8hgO@RcBhS-@Qb$%+m=hPDLg*%K8ln(wcf3/'DW-$.lR?n[nCH-"
4125 "eXOONTJlh:.RYF%3'p6sq:UIMA945&^HFS87@$EP2iG<-lCO$%c`uKGD3rC$x0BL8aFn--`ke%#HMP'vh1/R&O_J9'um,.<tx[@%wsJk&bUT2`0uMv7gg#qp/ij.L56'hl;.s5CUrxjO"
4126 "M7-##.l+Au'A&O:-T72L]P`&=;ctp'XScX*rU.>-XTt,%OVU4)S1+R-#dg0/Nn?Ku1^0f$B*P:Rowwm-`0PKjYDDM'3]d39VZHEl4,.j']Pk-M.h^&:0FACm$maq-&sgw0t7/6(^xtk%"
4127 "LuH88Fj-ekm>GA#_>568x6(OFRl-IZp`&b,_P'$M<Jnq79VsJW/mWS*PUiq76;]/NM_>hLbxfc$mj`,O;&%W2m`Zh:/)Uetw:aJ%]K9h:TcF]u_-Sj9,VK3M.*'&0D[Ca]J9gp8,kAW]"
4128 "%(?A%R$f<->Zts'^kn=-^@c4%-pY6qI%J%1IGxfLU9CP8cbPlXv);C=b),<2mOvP8up,UVf3839acAWAW-W?#ao/^#%KYo8fRULNd2.>%m]UK:n%r$'sw]J;5pAoO_#2mO3n,'=H5(et"
4129 "Hg*`+RLgv>=4U8guD$I%D:W>-r5V*%j*W:Kvej.Lp$<M-SGZ':+Q_k+uvOSLiEo(<aD/K<CCc`'Lx>'?;++O'>()jLR-^u68PHm8ZFWe+ej8h:9r6L*0//c&iH&R8pRbA#Kjm%upV1g:"
4130 "a_#Ur7FuA#(tRh#.Y5K+@?3<-8m0$PEn;J:rh6?I6uG<-`wMU'ircp0LaE_OtlMb&1#6T.#FDKu#1Lw%u%+GM+X'e?YLfjM[VO0MbuFp7;>Q&#WIo)0@F%q7c#4XAXN-U&VB<HFF*qL("
4131 "$/V,;(kXZejWO`<[5?\?ewY(*9=%wDc;,u<'9t3W-(H1th3+G]ucQ]kLs7df($/*JL]@*t7Bu_G3_7mp7<iaQjO@.kLg;x3B0lqp7Hf,^Ze7-##@/c58Mo(3;knp0%)A7?-W+eI'o8)b<"
4132 "nKnw'Ho8C=Y>pqB>0ie&jhZ[?iLR@@_AvA-iQC(=ksRZRVp7`.=+NpBC%rh&3]R:8XDmE5^V8O(x<<aG/1N$#FX$0V5Y6x'aErI3I$7x%E`v<-BY,)%-?Psf*l?%C3.mM(=/M0:JxG'?"
4133 "7WhH%o'a<-80g0NBxoO(GH<dM]n.+%q@jH?f.UsJ2Ggs&4<-e47&Kl+f//9@`b+?.TeN_&B8Ss?v;^Trk;f#YvJkl&w$]>-+k?'(<S:68tq*WoDfZu';mM?8X[ma8W%*`-=;D.(nc7/;"
4134 ")g:T1=^J$&BRV(-lTmNB6xqB[@0*o.erM*<SWF]u2=st-*(6v>^](H.aREZSi,#1:[IXaZFOm<-ui#qUq2$##Ri;u75OK#(RtaW-K-F`S+cF]uN`-KMQ%rP/Xri.LRcB##=YL3BgM/3M"
4135 "D?@f&1'BW-)Ju<L25gl8uhVm1hL$##*8###'A3/LkKW+(^rWX?5W_8g)a(m&K8P>#bmmWCMkk&#TR`C,5d>g)F;t,4:@_l8G/5h4vUd%&%950:VXD'QdWoY-F$BtUwmfe$YqL'8(PWX("
4136 "P?^@Po3$##`MSs?DWBZ/S>+4%>fX,VWv/w'KD`LP5IbH;rTV>n3cEK8U#bX]l-/V+^lj3;vlMb&[5YQ8#pekX9JP3XUC72L,,?+Ni&co7ApnO*5NK,((W-i:$,kp'UDAO(G0Sq7MVjJs"
4137 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTGT5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
4138 "h4CB/5OvmA&,Q&QbUoi$a_%3M01H)4x7I^&KQVgtFnV+;[Pc>[m4k//,]1?#`VY[Jr*3&&slRfLiVZJ:]?=K3Sw=[$=uRB?3xk48@aeg<Z'<$#4H)6,>e0jT6'N#(q%.O=?2S]u*(m<-"
4139 "V8J'(1)G][68hW$5'q[GC&5j`TE?m'esFGNRM)j,ffZ?-qx8;->g4t*:CIP/[Qap7/9'#(1sao7w-.qNUdkJ)tCF&#B^;xGvn2r9FEPFFFcL@.iFNkTve$m%#QvQS8U@)2Z+3K:AKM5i"
4140 "sZ88+dKQ)W6>J%CL<KE>`.d*(B`-n8D9oK<Up]c$X$(,)M8Zt7/[rdkqTgl-0cuGMv'?>-XV1q['-5k'cAZ69e;D_?$ZPP&s^+7])$*$#@QYi9,5P	r+$%CE=68>K8r0=dSC%%(@p7"
4141 ".m7jilQ02'0-VWAg<a/''3u.=4L$Y)6k/K:_[3=&jvL<L0C/2'v:^;-DIBW,B4E68:kZ;%?8(Q8BH=kO65BW?xSG&#@uU,DS*,?.+(o(#1vCS8#CHF>TlGW'b)Tq7VT9q^*^$$.:&N@@"
4142 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
4143 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
4144 "@-W$U%VEQ/,,>>#)D<h#`)h0:<Q6909ua+&VU%n2:cG3FJ-%@Bj-DgLr`Hw&HAKjKjseK</xKT*)B,N9X3]krc12t'pgTV(Lv-tL[xg_%=M_q7a^x?7Ubd>#%8cY#YZ?=,`Wdxu/ae&#"
4145 "w6)R89tI#6@s'(6Bf7a&?S=^ZI_kS&ai`&=tE72L_D,;^R)7[$s<Eh#c&)q.MXI%#v9ROa5FZO%sF7q7Nwb&#ptUJ:aqJe$Sl68%.D###EC><?-aF&#RNQv>o8lKN%5/$(vdfq7+ebA#"
4146 "u1p]ovUKW&Y%q]'>$1@-[xfn$7ZTp7mM,G,Ko7a&Gu%G[RMxJs[0MM%wci.LFDK)(<c`Q8N)jEIF*+?P2a8g%)$q]o2aH8C&<SibC/q,(e:v;-b#6[$NtDZ84Je2KNvB#$P5?tQ3nt(0"
4147 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoFDoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
4148 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
4149 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
4150 ":k$YUWsbn8ogh6rxZ2Z9]%nd+>V#*8U_72Lh+2Q8Cj0i:6hp&$C/:p(HK>T8Y[gHQ4`4)'$Ab(Nof%V'8hL&#<NEdtg(n'=S1A(Q1/I&4([%dM`,Iu'1:_hL>SfD07&6D<fp8dHM7/g+"
4151 "tlPN9J*rKaPct&?'uBCem^jn%9_K)<,C5K3s=5g&GmJb*[SYq7K;TRLGCsM-$$;S%:Y@r7AK0pprpL<Lrh,q7e/%KWK:50I^+m'vi`3?%Zp+<-d+$L-Sv:@.o19n$s0&39;kn;S%BSq*"
4152 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
4153 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
4154 "7aQC[K8d-(v6GI$x:T<&'Gp5Uf>@M.*J:;$-rv29'M]8qMv-tLp,'886iaC=Hb*YJoKJ,(j%K=H`K.v9HggqBIiZu'QvBT.#=)0ukruV&.)3=(^1`o*Pj4<-<aN((^7('#Z0wK#5GX@7"
4155 "u][`*S^43933A4rl][`*O4CgLEl]v$1Q3AeF37dbXk,.)vj#x'd`;qgbQR%FW,2(?LO=s%Sc68%NP'##Aotl8x=BE#j1UD([3$M(]UI2LX3RpKN@;/#f'f/&_mt&F)XdF<9t4)Qa.*kT"
4156 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
4157 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
4158 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
4159 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
4160 "^V'9;jY@;)br#q^YQpx:X#Te$Z^'=-=bGhLf:D6&bNwZ9-ZD#n^9HhLMr5G;']d&6'wYmTFmL<LD)F^%[tC'8;+9E#C$g%#5Y>q9wI>P(9mI[>kC-ekLC/R&CH+s'B;K-M6$EB%is00:"
4161 "+A4[7xks.LrNk0&E)wILYF@2L'0Nb$+pv<(2.768/FrY&h$^3i&@+G%JT'<-,v`3;_)I9M^AE]CN?Cl2AZg+%4iTpT3<n-&%H%b<FDj2M<hH=&Eh<2Len$b*aTX=-8QxN)k11IM1c^j%"
4162 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
4163 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
4164 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
4165 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
4166 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
4167 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
4168 "+fsd;l#SafT/f*W]0=O'$(Tb<[)*@e775R-:Yob%g*>l*:xP?Yb.5)%w_I?7uk5JC+FS(m#i'k.'a0i)9<7b'fs'59hq$*5Uhv##pi^8+hIEBF`nvo`;'l0.^S1<-wUK2/Coh58KKhLj"
4169 "M=SO*rfO`+qC`W-On.=AJ56>>i2@2LH6A:&5q`?9I3@@'04&p2/LVa*T-4<-i3;M9UvZd+N7>b*eIwg:CC)c<>nO&#<IGe;__.thjZl<%w(Wk2xmp4Q@I#I9,DF]u7-P=.-_:YJ]aS@V"
4170 "?6*C()dOp7:WL,b&3Rg/.cmM9&r^>$(>.Z-I&J(Q0Hd5Q%7Co-b`-c<N(6r@ip+AurK<m86QIth*#v;-OBqi+L7wDE-Ir8K['m+DDSLwK&/.?-V%U_%3:qKNu$_b*B-kp7NaD'QdWQPK"
4171 "Yq[@>P)hI;*_F]u`Rb[.j8_Q/<&>uu+VsH$sM9TA%?)(vmJ80),P7E>)tjD%2L=-t#fK[%`v=Q8<FfNkgg^oIbah*#8/Qt$F&:K*-(N/'+1vMB,u()-a.VUU*#[e%gAAO(S>WlA2);Sa"
4172 ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
4173 "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
4174 "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
4175 "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
4176 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
4177 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
4178 "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
4179 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
4180 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
4181 ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
4182 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
4183 "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
4184 "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
4185 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
4186 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
4187 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
4188 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
4189 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
4190
GetDefaultCompressedFontDataTTFBase85()4191 static const char* GetDefaultCompressedFontDataTTFBase85()
4192 {
4193 return proggy_clean_ttf_compressed_data_base85;
4194 }
4195
4196 #endif // #ifndef IMGUI_DISABLE
4197