1 // dear imgui, v1.85 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_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
234 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
235 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
236 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
237 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
238 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
239 colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
240 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
241 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
242 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
243 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
244 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
245 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
246 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
247 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
248 }
249
StyleColorsClassic(ImGuiStyle * dst)250 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
251 {
252 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
253 ImVec4* colors = style->Colors;
254
255 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
256 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
257 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
258 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
259 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
260 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
261 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
262 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
263 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
264 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
265 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
266 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
267 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
268 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
269 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
270 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
271 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
272 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
273 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
274 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
275 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
276 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
277 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
278 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
279 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
280 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
281 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
282 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
283 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
284 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
285 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
286 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
287 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
288 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
289 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
290 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
291 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
292 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
293 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
294 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
295 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
296 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
297 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
298 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
299 colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
300 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
301 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
302 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
303 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
304 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
305 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
306 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
307 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
308 }
309
310 // Those light colors are better suited with a thicker font than the default one + FrameBorder
StyleColorsLight(ImGuiStyle * dst)311 void ImGui::StyleColorsLight(ImGuiStyle* dst)
312 {
313 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
314 ImVec4* colors = style->Colors;
315
316 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
317 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
318 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
319 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
320 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
321 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
322 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
323 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
324 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
325 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
326 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
327 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
328 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
329 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
330 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
331 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
332 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
333 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
334 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
335 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
336 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
337 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
338 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
339 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
340 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
341 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
342 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
343 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
344 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
345 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
346 colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
347 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
348 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
349 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
350 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
351 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
352 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
353 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
354 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
355 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
356 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
357 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
358 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
359 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
360 colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
361 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
362 colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
363 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
364 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
365 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
366 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
367 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
368 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
369 }
370
371 //-----------------------------------------------------------------------------
372 // [SECTION] ImDrawList
373 //-----------------------------------------------------------------------------
374
ImDrawListSharedData()375 ImDrawListSharedData::ImDrawListSharedData()
376 {
377 memset(this, 0, sizeof(*this));
378 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
379 {
380 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
381 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
382 }
383 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
384 }
385
SetCircleTessellationMaxError(float max_error)386 void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
387 {
388 if (CircleSegmentMaxError == max_error)
389 return;
390
391 IM_ASSERT(max_error > 0.0f);
392 CircleSegmentMaxError = max_error;
393 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
394 {
395 const float radius = (float)i;
396 CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : 0);
397 }
398 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
399 }
400
401 // Initialize before use in a new frame. We always have a command ready in the buffer.
_ResetForNewFrame()402 void ImDrawList::_ResetForNewFrame()
403 {
404 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
405 // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
406 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
407 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
408 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
409
410 CmdBuffer.resize(0);
411 IdxBuffer.resize(0);
412 VtxBuffer.resize(0);
413 Flags = _Data->InitialFlags;
414 memset(&_CmdHeader, 0, sizeof(_CmdHeader));
415 _VtxCurrentIdx = 0;
416 _VtxWritePtr = NULL;
417 _IdxWritePtr = NULL;
418 _ClipRectStack.resize(0);
419 _TextureIdStack.resize(0);
420 _Path.resize(0);
421 _Splitter.Clear();
422 CmdBuffer.push_back(ImDrawCmd());
423 _FringeScale = 1.0f;
424 }
425
_ClearFreeMemory()426 void ImDrawList::_ClearFreeMemory()
427 {
428 CmdBuffer.clear();
429 IdxBuffer.clear();
430 VtxBuffer.clear();
431 Flags = ImDrawListFlags_None;
432 _VtxCurrentIdx = 0;
433 _VtxWritePtr = NULL;
434 _IdxWritePtr = NULL;
435 _ClipRectStack.clear();
436 _TextureIdStack.clear();
437 _Path.clear();
438 _Splitter.ClearFreeMemory();
439 }
440
CloneOutput() const441 ImDrawList* ImDrawList::CloneOutput() const
442 {
443 ImDrawList* dst = IM_NEW(ImDrawList(_Data));
444 dst->CmdBuffer = CmdBuffer;
445 dst->IdxBuffer = IdxBuffer;
446 dst->VtxBuffer = VtxBuffer;
447 dst->Flags = Flags;
448 return dst;
449 }
450
AddDrawCmd()451 void ImDrawList::AddDrawCmd()
452 {
453 ImDrawCmd draw_cmd;
454 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
455 draw_cmd.TextureId = _CmdHeader.TextureId;
456 draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
457 draw_cmd.IdxOffset = IdxBuffer.Size;
458
459 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
460 CmdBuffer.push_back(draw_cmd);
461 }
462
463 // Pop trailing draw command (used before merging or presenting to user)
464 // 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()465 void ImDrawList::_PopUnusedDrawCmd()
466 {
467 if (CmdBuffer.Size == 0)
468 return;
469 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
470 if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
471 CmdBuffer.pop_back();
472 }
473
AddCallback(ImDrawCallback callback,void * callback_data)474 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
475 {
476 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
477 IM_ASSERT(curr_cmd->UserCallback == NULL);
478 if (curr_cmd->ElemCount != 0)
479 {
480 AddDrawCmd();
481 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
482 }
483 curr_cmd->UserCallback = callback;
484 curr_cmd->UserCallbackData = callback_data;
485
486 AddDrawCmd(); // Force a new command after us (see comment below)
487 }
488
489 // Compare ClipRect, TextureId and VtxOffset with a single memcmp()
490 #define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
491 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
492 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
493
494 // Try to merge two last draw commands
_TryMergeDrawCmds()495 void ImDrawList::_TryMergeDrawCmds()
496 {
497 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
498 ImDrawCmd* prev_cmd = curr_cmd - 1;
499 if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
500 {
501 prev_cmd->ElemCount += curr_cmd->ElemCount;
502 CmdBuffer.pop_back();
503 }
504 }
505
506 // 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.
507 // 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()508 void ImDrawList::_OnChangedClipRect()
509 {
510 // If current command is used with different settings we need to add a new command
511 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
512 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
513 {
514 AddDrawCmd();
515 return;
516 }
517 IM_ASSERT(curr_cmd->UserCallback == NULL);
518
519 // Try to merge with previous command if it matches, else use current command
520 ImDrawCmd* prev_cmd = curr_cmd - 1;
521 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
522 {
523 CmdBuffer.pop_back();
524 return;
525 }
526
527 curr_cmd->ClipRect = _CmdHeader.ClipRect;
528 }
529
_OnChangedTextureID()530 void ImDrawList::_OnChangedTextureID()
531 {
532 // If current command is used with different settings we need to add a new command
533 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
534 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
535 {
536 AddDrawCmd();
537 return;
538 }
539 IM_ASSERT(curr_cmd->UserCallback == NULL);
540
541 // Try to merge with previous command if it matches, else use current command
542 ImDrawCmd* prev_cmd = curr_cmd - 1;
543 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
544 {
545 CmdBuffer.pop_back();
546 return;
547 }
548
549 curr_cmd->TextureId = _CmdHeader.TextureId;
550 }
551
_OnChangedVtxOffset()552 void ImDrawList::_OnChangedVtxOffset()
553 {
554 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
555 _VtxCurrentIdx = 0;
556 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
557 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
558 if (curr_cmd->ElemCount != 0)
559 {
560 AddDrawCmd();
561 return;
562 }
563 IM_ASSERT(curr_cmd->UserCallback == NULL);
564 curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
565 }
566
_CalcCircleAutoSegmentCount(float radius) const567 int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
568 {
569 // Automatic segment count
570 const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
571 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
572 return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
573 else
574 return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
575 }
576
577 // 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)578 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
579 {
580 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
581 if (intersect_with_current_clip_rect)
582 {
583 ImVec4 current = _CmdHeader.ClipRect;
584 if (cr.x < current.x) cr.x = current.x;
585 if (cr.y < current.y) cr.y = current.y;
586 if (cr.z > current.z) cr.z = current.z;
587 if (cr.w > current.w) cr.w = current.w;
588 }
589 cr.z = ImMax(cr.x, cr.z);
590 cr.w = ImMax(cr.y, cr.w);
591
592 _ClipRectStack.push_back(cr);
593 _CmdHeader.ClipRect = cr;
594 _OnChangedClipRect();
595 }
596
PushClipRectFullScreen()597 void ImDrawList::PushClipRectFullScreen()
598 {
599 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
600 }
601
PopClipRect()602 void ImDrawList::PopClipRect()
603 {
604 _ClipRectStack.pop_back();
605 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
606 _OnChangedClipRect();
607 }
608
PushTextureID(ImTextureID texture_id)609 void ImDrawList::PushTextureID(ImTextureID texture_id)
610 {
611 _TextureIdStack.push_back(texture_id);
612 _CmdHeader.TextureId = texture_id;
613 _OnChangedTextureID();
614 }
615
PopTextureID()616 void ImDrawList::PopTextureID()
617 {
618 _TextureIdStack.pop_back();
619 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
620 _OnChangedTextureID();
621 }
622
623 // Reserve space for a number of vertices and indices.
624 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
625 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
PrimReserve(int idx_count,int vtx_count)626 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
627 {
628 // Large mesh support (when enabled)
629 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
630 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
631 {
632 // FIXME: In theory we should be testing that vtx_count <64k here.
633 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
634 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
635 _CmdHeader.VtxOffset = VtxBuffer.Size;
636 _OnChangedVtxOffset();
637 }
638
639 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
640 draw_cmd->ElemCount += idx_count;
641
642 int vtx_buffer_old_size = VtxBuffer.Size;
643 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
644 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
645
646 int idx_buffer_old_size = IdxBuffer.Size;
647 IdxBuffer.resize(idx_buffer_old_size + idx_count);
648 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
649 }
650
651 // 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)652 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
653 {
654 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
655
656 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
657 draw_cmd->ElemCount -= idx_count;
658 VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
659 IdxBuffer.shrink(IdxBuffer.Size - idx_count);
660 }
661
662 // Fully unrolled with inline call to keep our debug builds decently fast.
PrimRect(const ImVec2 & a,const ImVec2 & c,ImU32 col)663 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
664 {
665 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
666 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
667 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
668 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
669 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
670 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
671 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
672 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
673 _VtxWritePtr += 4;
674 _VtxCurrentIdx += 4;
675 _IdxWritePtr += 6;
676 }
677
PrimRectUV(const ImVec2 & a,const ImVec2 & c,const ImVec2 & uv_a,const ImVec2 & uv_c,ImU32 col)678 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
679 {
680 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);
681 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
682 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
683 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
684 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
685 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
686 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
687 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
688 _VtxWritePtr += 4;
689 _VtxCurrentIdx += 4;
690 _IdxWritePtr += 6;
691 }
692
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)693 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)
694 {
695 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
696 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
697 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
698 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
699 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
700 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
701 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
702 _VtxWritePtr += 4;
703 _VtxCurrentIdx += 4;
704 _IdxWritePtr += 6;
705 }
706
707 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
708 // - Those macros expects l-values and need to be used as their own statement.
709 // - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
710 #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
711 #define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366)
712 #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
713
714 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
715 // 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)716 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
717 {
718 if (points_count < 2)
719 return;
720
721 const bool closed = (flags & ImDrawFlags_Closed) != 0;
722 const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
723 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
724 const bool thick_line = (thickness > _FringeScale);
725
726 if (Flags & ImDrawListFlags_AntiAliasedLines)
727 {
728 // Anti-aliased stroke
729 const float AA_SIZE = _FringeScale;
730 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
731
732 // Thicknesses <1.0 should behave like thickness 1.0
733 thickness = ImMax(thickness, 1.0f);
734 const int integer_thickness = (int)thickness;
735 const float fractional_thickness = thickness - integer_thickness;
736
737 // Do we want to draw this line using a texture?
738 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
739 // - If AA_SIZE is not 1.0f we cannot use the texture path.
740 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
741
742 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
743 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
744
745 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
746 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
747 PrimReserve(idx_count, vtx_count);
748
749 // Temporary buffer
750 // 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
751 ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
752 ImVec2* temp_points = temp_normals + points_count;
753
754 // Calculate normals (tangents) for each line segment
755 for (int i1 = 0; i1 < count; i1++)
756 {
757 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
758 float dx = points[i2].x - points[i1].x;
759 float dy = points[i2].y - points[i1].y;
760 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
761 temp_normals[i1].x = dy;
762 temp_normals[i1].y = -dx;
763 }
764 if (!closed)
765 temp_normals[points_count - 1] = temp_normals[points_count - 2];
766
767 // 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
768 if (use_texture || !thick_line)
769 {
770 // [PATH 1] Texture-based lines (thick or non-thick)
771 // [PATH 2] Non texture-based lines (non-thick)
772
773 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
774 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
775 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
776 // - 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
777 // allow scaling geometry while preserving one-screen-pixel AA fringe).
778 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
779
780 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
781 if (!closed)
782 {
783 temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
784 temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
785 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
786 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
787 }
788
789 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
790 // 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)
791 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
792 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
793 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
794 {
795 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
796 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
797
798 // Average normals
799 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
800 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
801 IM_FIXNORMAL2F(dm_x, dm_y);
802 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
803 dm_y *= half_draw_size;
804
805 // Add temporary vertexes for the outer edges
806 ImVec2* out_vtx = &temp_points[i2 * 2];
807 out_vtx[0].x = points[i2].x + dm_x;
808 out_vtx[0].y = points[i2].y + dm_y;
809 out_vtx[1].x = points[i2].x - dm_x;
810 out_vtx[1].y = points[i2].y - dm_y;
811
812 if (use_texture)
813 {
814 // Add indices for two triangles
815 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
816 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
817 _IdxWritePtr += 6;
818 }
819 else
820 {
821 // Add indexes for four triangles
822 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
823 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
824 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
825 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
826 _IdxWritePtr += 12;
827 }
828
829 idx1 = idx2;
830 }
831
832 // Add vertexes for each point on the line
833 if (use_texture)
834 {
835 // If we're using textures we only need to emit the left/right edge vertices
836 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
837 /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
838 {
839 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
840 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
841 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
842 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
843 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
844 }*/
845 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
846 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
847 for (int i = 0; i < points_count; i++)
848 {
849 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
850 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
851 _VtxWritePtr += 2;
852 }
853 }
854 else
855 {
856 // If we're not using a texture, we need the center vertex as well
857 for (int i = 0; i < points_count; i++)
858 {
859 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
860 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
861 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
862 _VtxWritePtr += 3;
863 }
864 }
865 }
866 else
867 {
868 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
869 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
870
871 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
872 if (!closed)
873 {
874 const int points_last = points_count - 1;
875 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
876 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
877 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
878 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
879 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
880 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
881 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
882 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
883 }
884
885 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
886 // 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)
887 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
888 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
889 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
890 {
891 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
892 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
893
894 // Average normals
895 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
896 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
897 IM_FIXNORMAL2F(dm_x, dm_y);
898 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
899 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
900 float dm_in_x = dm_x * half_inner_thickness;
901 float dm_in_y = dm_y * half_inner_thickness;
902
903 // Add temporary vertices
904 ImVec2* out_vtx = &temp_points[i2 * 4];
905 out_vtx[0].x = points[i2].x + dm_out_x;
906 out_vtx[0].y = points[i2].y + dm_out_y;
907 out_vtx[1].x = points[i2].x + dm_in_x;
908 out_vtx[1].y = points[i2].y + dm_in_y;
909 out_vtx[2].x = points[i2].x - dm_in_x;
910 out_vtx[2].y = points[i2].y - dm_in_y;
911 out_vtx[3].x = points[i2].x - dm_out_x;
912 out_vtx[3].y = points[i2].y - dm_out_y;
913
914 // Add indexes
915 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
916 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
917 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
918 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
919 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
920 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
921 _IdxWritePtr += 18;
922
923 idx1 = idx2;
924 }
925
926 // Add vertices
927 for (int i = 0; i < points_count; i++)
928 {
929 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
930 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
931 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
932 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
933 _VtxWritePtr += 4;
934 }
935 }
936 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
937 }
938 else
939 {
940 // [PATH 4] Non texture-based, Non anti-aliased lines
941 const int idx_count = count * 6;
942 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
943 PrimReserve(idx_count, vtx_count);
944
945 for (int i1 = 0; i1 < count; i1++)
946 {
947 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
948 const ImVec2& p1 = points[i1];
949 const ImVec2& p2 = points[i2];
950
951 float dx = p2.x - p1.x;
952 float dy = p2.y - p1.y;
953 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
954 dx *= (thickness * 0.5f);
955 dy *= (thickness * 0.5f);
956
957 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
958 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
959 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
960 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
961 _VtxWritePtr += 4;
962
963 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
964 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
965 _IdxWritePtr += 6;
966 _VtxCurrentIdx += 4;
967 }
968 }
969 }
970
971 // 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)972 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
973 {
974 if (points_count < 3)
975 return;
976
977 const ImVec2 uv = _Data->TexUvWhitePixel;
978
979 if (Flags & ImDrawListFlags_AntiAliasedFill)
980 {
981 // Anti-aliased Fill
982 const float AA_SIZE = _FringeScale;
983 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
984 const int idx_count = (points_count - 2)*3 + points_count * 6;
985 const int vtx_count = (points_count * 2);
986 PrimReserve(idx_count, vtx_count);
987
988 // Add indexes for fill
989 unsigned int vtx_inner_idx = _VtxCurrentIdx;
990 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
991 for (int i = 2; i < points_count; i++)
992 {
993 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
994 _IdxWritePtr += 3;
995 }
996
997 // Compute normals
998 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
999 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1000 {
1001 const ImVec2& p0 = points[i0];
1002 const ImVec2& p1 = points[i1];
1003 float dx = p1.x - p0.x;
1004 float dy = p1.y - p0.y;
1005 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
1006 temp_normals[i0].x = dy;
1007 temp_normals[i0].y = -dx;
1008 }
1009
1010 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
1011 {
1012 // Average normals
1013 const ImVec2& n0 = temp_normals[i0];
1014 const ImVec2& n1 = temp_normals[i1];
1015 float dm_x = (n0.x + n1.x) * 0.5f;
1016 float dm_y = (n0.y + n1.y) * 0.5f;
1017 IM_FIXNORMAL2F(dm_x, dm_y);
1018 dm_x *= AA_SIZE * 0.5f;
1019 dm_y *= AA_SIZE * 0.5f;
1020
1021 // Add vertices
1022 _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
1023 _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
1024 _VtxWritePtr += 2;
1025
1026 // Add indexes for fringes
1027 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
1028 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
1029 _IdxWritePtr += 6;
1030 }
1031 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1032 }
1033 else
1034 {
1035 // Non Anti-aliased Fill
1036 const int idx_count = (points_count - 2)*3;
1037 const int vtx_count = points_count;
1038 PrimReserve(idx_count, vtx_count);
1039 for (int i = 0; i < vtx_count; i++)
1040 {
1041 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
1042 _VtxWritePtr++;
1043 }
1044 for (int i = 2; i < points_count; i++)
1045 {
1046 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
1047 _IdxWritePtr += 3;
1048 }
1049 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1050 }
1051 }
1052
_PathArcToFastEx(const ImVec2 & center,float radius,int a_min_sample,int a_max_sample,int a_step)1053 void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
1054 {
1055 if (radius <= 0.0f)
1056 {
1057 _Path.push_back(center);
1058 return;
1059 }
1060
1061 // Calculate arc auto segment step size
1062 if (a_step <= 0)
1063 a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
1064
1065 // Make sure we never do steps larger than one quarter of the circle
1066 a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
1067
1068 const int sample_range = ImAbs(a_max_sample - a_min_sample);
1069 const int a_next_step = a_step;
1070
1071 int samples = sample_range + 1;
1072 bool extra_max_sample = false;
1073 if (a_step > 1)
1074 {
1075 samples = sample_range / a_step + 1;
1076 const int overstep = sample_range % a_step;
1077
1078 if (overstep > 0)
1079 {
1080 extra_max_sample = true;
1081 samples++;
1082
1083 // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
1084 // distribute first step range evenly between them by reducing first step size.
1085 if (sample_range > 0)
1086 a_step -= (a_step - overstep) / 2;
1087 }
1088 }
1089
1090 _Path.resize(_Path.Size + samples);
1091 ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
1092
1093 int sample_index = a_min_sample;
1094 if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1095 {
1096 sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1097 if (sample_index < 0)
1098 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1099 }
1100
1101 if (a_max_sample >= a_min_sample)
1102 {
1103 for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
1104 {
1105 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1106 if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
1107 sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1108
1109 const ImVec2 s = _Data->ArcFastVtx[sample_index];
1110 out_ptr->x = center.x + s.x * radius;
1111 out_ptr->y = center.y + s.y * radius;
1112 out_ptr++;
1113 }
1114 }
1115 else
1116 {
1117 for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
1118 {
1119 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
1120 if (sample_index < 0)
1121 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1122
1123 const ImVec2 s = _Data->ArcFastVtx[sample_index];
1124 out_ptr->x = center.x + s.x * radius;
1125 out_ptr->y = center.y + s.y * radius;
1126 out_ptr++;
1127 }
1128 }
1129
1130 if (extra_max_sample)
1131 {
1132 int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1133 if (normalized_max_sample < 0)
1134 normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1135
1136 const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
1137 out_ptr->x = center.x + s.x * radius;
1138 out_ptr->y = center.y + s.y * radius;
1139 out_ptr++;
1140 }
1141
1142 IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
1143 }
1144
_PathArcToN(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1145 void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1146 {
1147 if (radius <= 0.0f)
1148 {
1149 _Path.push_back(center);
1150 return;
1151 }
1152
1153 // Note that we are adding a point at both a_min and a_max.
1154 // If you are trying to draw a full closed circle you don't want the overlapping points!
1155 _Path.reserve(_Path.Size + (num_segments + 1));
1156 for (int i = 0; i <= num_segments; i++)
1157 {
1158 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1159 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1160 }
1161 }
1162
1163 // 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)1164 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1165 {
1166 if (radius <= 0.0f)
1167 {
1168 _Path.push_back(center);
1169 return;
1170 }
1171 _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0);
1172 }
1173
PathArcTo(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1174 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1175 {
1176 if (radius <= 0.0f)
1177 {
1178 _Path.push_back(center);
1179 return;
1180 }
1181
1182 if (num_segments > 0)
1183 {
1184 _PathArcToN(center, radius, a_min, a_max, num_segments);
1185 return;
1186 }
1187
1188 // Automatic segment count
1189 if (radius <= _Data->ArcFastRadiusCutoff)
1190 {
1191 const bool a_is_reverse = a_max < a_min;
1192
1193 // We are going to use precomputed values for mid samples.
1194 // Determine first and last sample in lookup table that belong to the arc.
1195 const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
1196 const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
1197
1198 const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
1199 const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f);
1200 const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);
1201
1202 const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1203 const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
1204 const bool a_emit_start = (a_min_segment_angle - a_min) != 0.0f;
1205 const bool a_emit_end = (a_max - a_max_segment_angle) != 0.0f;
1206
1207 _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
1208 if (a_emit_start)
1209 _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
1210 if (a_mid_samples > 0)
1211 _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0);
1212 if (a_emit_end)
1213 _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
1214 }
1215 else
1216 {
1217 const float arc_length = ImAbs(a_max - a_min);
1218 const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
1219 const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length));
1220 _PathArcToN(center, radius, a_min, a_max, arc_segment_count);
1221 }
1222 }
1223
ImBezierCubicCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,float t)1224 ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1225 {
1226 float u = 1.0f - t;
1227 float w1 = u * u * u;
1228 float w2 = 3 * u * u * t;
1229 float w3 = 3 * u * t * t;
1230 float w4 = t * t * t;
1231 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);
1232 }
1233
ImBezierQuadraticCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,float t)1234 ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
1235 {
1236 float u = 1.0f - t;
1237 float w1 = u * u;
1238 float w2 = 2 * u * t;
1239 float w3 = t * t;
1240 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
1241 }
1242
1243 // 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)1244 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)
1245 {
1246 float dx = x4 - x1;
1247 float dy = y4 - y1;
1248 float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
1249 float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
1250 d2 = (d2 >= 0) ? d2 : -d2;
1251 d3 = (d3 >= 0) ? d3 : -d3;
1252 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1253 {
1254 path->push_back(ImVec2(x4, y4));
1255 }
1256 else if (level < 10)
1257 {
1258 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1259 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1260 float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
1261 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1262 float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
1263 float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
1264 PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
1265 PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
1266 }
1267 }
1268
PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2> * path,float x1,float y1,float x2,float y2,float x3,float y3,float tess_tol,int level)1269 static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
1270 {
1271 float dx = x3 - x1, dy = y3 - y1;
1272 float det = (x2 - x3) * dy - (y2 - y3) * dx;
1273 if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
1274 {
1275 path->push_back(ImVec2(x3, y3));
1276 }
1277 else if (level < 10)
1278 {
1279 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1280 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1281 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1282 PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
1283 PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
1284 }
1285 }
1286
PathBezierCubicCurveTo(const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,int num_segments)1287 void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1288 {
1289 ImVec2 p1 = _Path.back();
1290 if (num_segments == 0)
1291 {
1292 PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
1293 }
1294 else
1295 {
1296 float t_step = 1.0f / (float)num_segments;
1297 for (int i_step = 1; i_step <= num_segments; i_step++)
1298 _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
1299 }
1300 }
1301
PathBezierQuadraticCurveTo(const ImVec2 & p2,const ImVec2 & p3,int num_segments)1302 void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
1303 {
1304 ImVec2 p1 = _Path.back();
1305 if (num_segments == 0)
1306 {
1307 PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
1308 }
1309 else
1310 {
1311 float t_step = 1.0f / (float)num_segments;
1312 for (int i_step = 1; i_step <= num_segments; i_step++)
1313 _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
1314 }
1315 }
1316
1317 IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
FixRectCornerFlags(ImDrawFlags flags)1318 static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
1319 {
1320 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
1321 // Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
1322 // ~0 --> ImDrawFlags_RoundCornersAll or 0
1323 if (flags == ~0)
1324 return ImDrawFlags_RoundCornersAll;
1325
1326 // Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations)
1327 // 0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!)
1328 // 0x02 --> ImDrawFlags_RoundCornersTopRight
1329 // 0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight
1330 // 0x04 --> ImDrawFlags_RoundCornersBotLeft
1331 // 0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft
1332 // ...
1333 // 0x0F --> ImDrawFlags_RoundCornersAll or 0
1334 // (See all values in ImDrawCornerFlags_)
1335 if (flags >= 0x01 && flags <= 0x0F)
1336 return (flags << 4);
1337
1338 // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
1339 #endif
1340
1341 // If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
1342 // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc...
1343 IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
1344
1345 if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
1346 flags |= ImDrawFlags_RoundCornersAll;
1347
1348 return flags;
1349 }
1350
PathRect(const ImVec2 & a,const ImVec2 & b,float rounding,ImDrawFlags flags)1351 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
1352 {
1353 flags = FixRectCornerFlags(flags);
1354 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f);
1355 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f ) - 1.0f);
1356
1357 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1358 {
1359 PathLineTo(a);
1360 PathLineTo(ImVec2(b.x, a.y));
1361 PathLineTo(b);
1362 PathLineTo(ImVec2(a.x, b.y));
1363 }
1364 else
1365 {
1366 const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f;
1367 const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f;
1368 const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
1369 const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f;
1370 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1371 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1372 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1373 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1374 }
1375 }
1376
AddLine(const ImVec2 & p1,const ImVec2 & p2,ImU32 col,float thickness)1377 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1378 {
1379 if ((col & IM_COL32_A_MASK) == 0)
1380 return;
1381 PathLineTo(p1 + ImVec2(0.5f, 0.5f));
1382 PathLineTo(p2 + ImVec2(0.5f, 0.5f));
1383 PathStroke(col, 0, thickness);
1384 }
1385
1386 // p_min = upper-left, p_max = lower-right
1387 // 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)1388 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
1389 {
1390 if ((col & IM_COL32_A_MASK) == 0)
1391 return;
1392 if (Flags & ImDrawListFlags_AntiAliasedLines)
1393 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags);
1394 else
1395 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.
1396 PathStroke(col, ImDrawFlags_Closed, thickness);
1397 }
1398
AddRectFilled(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawFlags flags)1399 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
1400 {
1401 if ((col & IM_COL32_A_MASK) == 0)
1402 return;
1403 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1404 {
1405 PrimReserve(6, 4);
1406 PrimRect(p_min, p_max, col);
1407 }
1408 else
1409 {
1410 PathRect(p_min, p_max, rounding, flags);
1411 PathFillConvex(col);
1412 }
1413 }
1414
1415 // 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)1416 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)
1417 {
1418 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1419 return;
1420
1421 const ImVec2 uv = _Data->TexUvWhitePixel;
1422 PrimReserve(6, 4);
1423 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
1424 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
1425 PrimWriteVtx(p_min, uv, col_upr_left);
1426 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
1427 PrimWriteVtx(p_max, uv, col_bot_right);
1428 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
1429 }
1430
AddQuad(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness)1431 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1432 {
1433 if ((col & IM_COL32_A_MASK) == 0)
1434 return;
1435
1436 PathLineTo(p1);
1437 PathLineTo(p2);
1438 PathLineTo(p3);
1439 PathLineTo(p4);
1440 PathStroke(col, ImDrawFlags_Closed, thickness);
1441 }
1442
AddQuadFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col)1443 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1444 {
1445 if ((col & IM_COL32_A_MASK) == 0)
1446 return;
1447
1448 PathLineTo(p1);
1449 PathLineTo(p2);
1450 PathLineTo(p3);
1451 PathLineTo(p4);
1452 PathFillConvex(col);
1453 }
1454
AddTriangle(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness)1455 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1456 {
1457 if ((col & IM_COL32_A_MASK) == 0)
1458 return;
1459
1460 PathLineTo(p1);
1461 PathLineTo(p2);
1462 PathLineTo(p3);
1463 PathStroke(col, ImDrawFlags_Closed, thickness);
1464 }
1465
AddTriangleFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col)1466 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1467 {
1468 if ((col & IM_COL32_A_MASK) == 0)
1469 return;
1470
1471 PathLineTo(p1);
1472 PathLineTo(p2);
1473 PathLineTo(p3);
1474 PathFillConvex(col);
1475 }
1476
AddCircle(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1477 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1478 {
1479 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1480 return;
1481
1482 if (num_segments <= 0)
1483 {
1484 // Use arc with automatic segment count
1485 _PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
1486 _Path.Size--;
1487 }
1488 else
1489 {
1490 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1491 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1492
1493 // Because we are filling a closed shape we remove 1 from the count of segments/points
1494 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1495 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1496 }
1497
1498 PathStroke(col, ImDrawFlags_Closed, thickness);
1499 }
1500
AddCircleFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1501 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1502 {
1503 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1504 return;
1505
1506 if (num_segments <= 0)
1507 {
1508 // Use arc with automatic segment count
1509 _PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
1510 _Path.Size--;
1511 }
1512 else
1513 {
1514 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1515 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1516
1517 // Because we are filling a closed shape we remove 1 from the count of segments/points
1518 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1519 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1520 }
1521
1522 PathFillConvex(col);
1523 }
1524
1525 // Guaranteed to honor 'num_segments'
AddNgon(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1526 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1527 {
1528 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1529 return;
1530
1531 // Because we are filling a closed shape we remove 1 from the count of segments/points
1532 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1533 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1534 PathStroke(col, ImDrawFlags_Closed, thickness);
1535 }
1536
1537 // Guaranteed to honor 'num_segments'
AddNgonFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1538 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1539 {
1540 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1541 return;
1542
1543 // Because we are filling a closed shape we remove 1 from the count of segments/points
1544 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1545 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1546 PathFillConvex(col);
1547 }
1548
1549 // 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)1550 void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1551 {
1552 if ((col & IM_COL32_A_MASK) == 0)
1553 return;
1554
1555 PathLineTo(p1);
1556 PathBezierCubicCurveTo(p2, p3, p4, num_segments);
1557 PathStroke(col, 0, thickness);
1558 }
1559
1560 // Quadratic Bezier takes 3 controls points
AddBezierQuadratic(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness,int num_segments)1561 void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
1562 {
1563 if ((col & IM_COL32_A_MASK) == 0)
1564 return;
1565
1566 PathLineTo(p1);
1567 PathBezierQuadraticCurveTo(p2, p3, num_segments);
1568 PathStroke(col, 0, thickness);
1569 }
1570
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)1571 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)
1572 {
1573 if ((col & IM_COL32_A_MASK) == 0)
1574 return;
1575
1576 if (text_end == NULL)
1577 text_end = text_begin + strlen(text_begin);
1578 if (text_begin == text_end)
1579 return;
1580
1581 // Pull default font/size from the shared ImDrawListSharedData instance
1582 if (font == NULL)
1583 font = _Data->Font;
1584 if (font_size == 0.0f)
1585 font_size = _Data->FontSize;
1586
1587 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1588
1589 ImVec4 clip_rect = _CmdHeader.ClipRect;
1590 if (cpu_fine_clip_rect)
1591 {
1592 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1593 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1594 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1595 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1596 }
1597 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1598 }
1599
AddText(const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end)1600 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1601 {
1602 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1603 }
1604
AddImage(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col)1605 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)
1606 {
1607 if ((col & IM_COL32_A_MASK) == 0)
1608 return;
1609
1610 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1611 if (push_texture_id)
1612 PushTextureID(user_texture_id);
1613
1614 PrimReserve(6, 4);
1615 PrimRectUV(p_min, p_max, uv_min, uv_max, col);
1616
1617 if (push_texture_id)
1618 PopTextureID();
1619 }
1620
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)1621 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)
1622 {
1623 if ((col & IM_COL32_A_MASK) == 0)
1624 return;
1625
1626 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1627 if (push_texture_id)
1628 PushTextureID(user_texture_id);
1629
1630 PrimReserve(6, 4);
1631 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
1632
1633 if (push_texture_id)
1634 PopTextureID();
1635 }
1636
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)1637 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)
1638 {
1639 if ((col & IM_COL32_A_MASK) == 0)
1640 return;
1641
1642 flags = FixRectCornerFlags(flags);
1643 if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
1644 {
1645 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
1646 return;
1647 }
1648
1649 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1650 if (push_texture_id)
1651 PushTextureID(user_texture_id);
1652
1653 int vert_start_idx = VtxBuffer.Size;
1654 PathRect(p_min, p_max, rounding, flags);
1655 PathFillConvex(col);
1656 int vert_end_idx = VtxBuffer.Size;
1657 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
1658
1659 if (push_texture_id)
1660 PopTextureID();
1661 }
1662
1663
1664 //-----------------------------------------------------------------------------
1665 // [SECTION] ImDrawListSplitter
1666 //-----------------------------------------------------------------------------
1667 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
1668 //-----------------------------------------------------------------------------
1669
ClearFreeMemory()1670 void ImDrawListSplitter::ClearFreeMemory()
1671 {
1672 for (int i = 0; i < _Channels.Size; i++)
1673 {
1674 if (i == _Current)
1675 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
1676 _Channels[i]._CmdBuffer.clear();
1677 _Channels[i]._IdxBuffer.clear();
1678 }
1679 _Current = 0;
1680 _Count = 1;
1681 _Channels.clear();
1682 }
1683
Split(ImDrawList * draw_list,int channels_count)1684 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
1685 {
1686 IM_UNUSED(draw_list);
1687 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
1688 int old_channels_count = _Channels.Size;
1689 if (old_channels_count < channels_count)
1690 {
1691 _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
1692 _Channels.resize(channels_count);
1693 }
1694 _Count = channels_count;
1695
1696 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
1697 // 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.
1698 // 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
1699 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
1700 for (int i = 1; i < channels_count; i++)
1701 {
1702 if (i >= old_channels_count)
1703 {
1704 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
1705 }
1706 else
1707 {
1708 _Channels[i]._CmdBuffer.resize(0);
1709 _Channels[i]._IdxBuffer.resize(0);
1710 }
1711 }
1712 }
1713
Merge(ImDrawList * draw_list)1714 void ImDrawListSplitter::Merge(ImDrawList* draw_list)
1715 {
1716 // 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.
1717 if (_Count <= 1)
1718 return;
1719
1720 SetCurrentChannel(draw_list, 0);
1721 draw_list->_PopUnusedDrawCmd();
1722
1723 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
1724 int new_cmd_buffer_count = 0;
1725 int new_idx_buffer_count = 0;
1726 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
1727 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
1728 for (int i = 1; i < _Count; i++)
1729 {
1730 ImDrawChannel& ch = _Channels[i];
1731
1732 // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
1733 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
1734 ch._CmdBuffer.pop_back();
1735
1736 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
1737 {
1738 ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
1739 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
1740 {
1741 // Merge previous channel last draw command with current channel first draw command if matching.
1742 last_cmd->ElemCount += next_cmd->ElemCount;
1743 idx_offset += next_cmd->ElemCount;
1744 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
1745 }
1746 }
1747 if (ch._CmdBuffer.Size > 0)
1748 last_cmd = &ch._CmdBuffer.back();
1749 new_cmd_buffer_count += ch._CmdBuffer.Size;
1750 new_idx_buffer_count += ch._IdxBuffer.Size;
1751 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
1752 {
1753 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
1754 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
1755 }
1756 }
1757 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
1758 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
1759
1760 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
1761 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
1762 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
1763 for (int i = 1; i < _Count; i++)
1764 {
1765 ImDrawChannel& ch = _Channels[i];
1766 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
1767 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
1768 }
1769 draw_list->_IdxWritePtr = idx_write;
1770
1771 // Ensure there's always a non-callback draw command trailing the command-buffer
1772 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
1773 draw_list->AddDrawCmd();
1774
1775 // If current command is used with different settings we need to add a new command
1776 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1777 if (curr_cmd->ElemCount == 0)
1778 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1779 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1780 draw_list->AddDrawCmd();
1781
1782 _Count = 1;
1783 }
1784
SetCurrentChannel(ImDrawList * draw_list,int idx)1785 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
1786 {
1787 IM_ASSERT(idx >= 0 && idx < _Count);
1788 if (_Current == idx)
1789 return;
1790
1791 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
1792 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
1793 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
1794 _Current = idx;
1795 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
1796 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
1797 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
1798
1799 // If current command is used with different settings we need to add a new command
1800 ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1801 if (curr_cmd == NULL)
1802 draw_list->AddDrawCmd();
1803 else if (curr_cmd->ElemCount == 0)
1804 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1805 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1806 draw_list->AddDrawCmd();
1807 }
1808
1809 //-----------------------------------------------------------------------------
1810 // [SECTION] ImDrawData
1811 //-----------------------------------------------------------------------------
1812
1813 // 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()1814 void ImDrawData::DeIndexAllBuffers()
1815 {
1816 ImVector<ImDrawVert> new_vtx_buffer;
1817 TotalVtxCount = TotalIdxCount = 0;
1818 for (int i = 0; i < CmdListsCount; i++)
1819 {
1820 ImDrawList* cmd_list = CmdLists[i];
1821 if (cmd_list->IdxBuffer.empty())
1822 continue;
1823 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1824 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1825 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1826 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1827 cmd_list->IdxBuffer.resize(0);
1828 TotalVtxCount += cmd_list->VtxBuffer.Size;
1829 }
1830 }
1831
1832 // Helper to scale the ClipRect field of each ImDrawCmd.
1833 // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1834 // or if there is a difference between your window resolution and framebuffer resolution.
ScaleClipRects(const ImVec2 & fb_scale)1835 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1836 {
1837 for (int i = 0; i < CmdListsCount; i++)
1838 {
1839 ImDrawList* cmd_list = CmdLists[i];
1840 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1841 {
1842 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1843 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);
1844 }
1845 }
1846 }
1847
1848 //-----------------------------------------------------------------------------
1849 // [SECTION] Helpers ShadeVertsXXX functions
1850 //-----------------------------------------------------------------------------
1851
1852 // 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)1853 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1854 {
1855 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1856 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1857 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1858 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1859 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
1860 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
1861 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
1862 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
1863 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
1864 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
1865 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1866 {
1867 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1868 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1869 int r = (int)(col0_r + col_delta_r * t);
1870 int g = (int)(col0_g + col_delta_g * t);
1871 int b = (int)(col0_b + col_delta_b * t);
1872 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1873 }
1874 }
1875
1876 // 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)1877 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)
1878 {
1879 const ImVec2 size = b - a;
1880 const ImVec2 uv_size = uv_b - uv_a;
1881 const ImVec2 scale = ImVec2(
1882 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1883 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1884
1885 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1886 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1887 if (clamp)
1888 {
1889 const ImVec2 min = ImMin(uv_a, uv_b);
1890 const ImVec2 max = ImMax(uv_a, uv_b);
1891 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1892 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1893 }
1894 else
1895 {
1896 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1897 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1898 }
1899 }
1900
1901 //-----------------------------------------------------------------------------
1902 // [SECTION] ImFontConfig
1903 //-----------------------------------------------------------------------------
1904
ImFontConfig()1905 ImFontConfig::ImFontConfig()
1906 {
1907 memset(this, 0, sizeof(*this));
1908 FontDataOwnedByAtlas = true;
1909 OversampleH = 3; // FIXME: 2 may be a better default?
1910 OversampleV = 1;
1911 GlyphMaxAdvanceX = FLT_MAX;
1912 RasterizerMultiply = 1.0f;
1913 EllipsisChar = (ImWchar)-1;
1914 }
1915
1916 //-----------------------------------------------------------------------------
1917 // [SECTION] ImFontAtlas
1918 //-----------------------------------------------------------------------------
1919
1920 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1921 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
1922 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
1923 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1924 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1925 {
1926 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1927 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1928 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1929 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1930 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1931 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1932 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1933 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1934 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1935 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1936 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1937 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1938 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1939 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1940 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1941 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1942 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1943 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1944 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1945 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1946 " X..X - X...X - X...X - X..X X..X - - X........X "
1947 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1948 "------------ - X - X -X.....................X- ------------------"
1949 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1950 " - X..X X..X - "
1951 " - X.X X.X - "
1952 " - XX XX - "
1953 };
1954
1955 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1956 {
1957 // Pos ........ Size ......... Offset ......
1958 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1959 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1960 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1961 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1962 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1963 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1964 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1965 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1966 };
1967
ImFontAtlas()1968 ImFontAtlas::ImFontAtlas()
1969 {
1970 memset(this, 0, sizeof(*this));
1971 TexGlyphPadding = 1;
1972 PackIdMouseCursors = PackIdLines = -1;
1973 }
1974
~ImFontAtlas()1975 ImFontAtlas::~ImFontAtlas()
1976 {
1977 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1978 Clear();
1979 }
1980
ClearInputData()1981 void ImFontAtlas::ClearInputData()
1982 {
1983 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1984 for (int i = 0; i < ConfigData.Size; i++)
1985 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1986 {
1987 IM_FREE(ConfigData[i].FontData);
1988 ConfigData[i].FontData = NULL;
1989 }
1990
1991 // When clearing this we lose access to the font name and other information used to build the font.
1992 for (int i = 0; i < Fonts.Size; i++)
1993 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1994 {
1995 Fonts[i]->ConfigData = NULL;
1996 Fonts[i]->ConfigDataCount = 0;
1997 }
1998 ConfigData.clear();
1999 CustomRects.clear();
2000 PackIdMouseCursors = PackIdLines = -1;
2001 // Important: we leave TexReady untouched
2002 }
2003
ClearTexData()2004 void ImFontAtlas::ClearTexData()
2005 {
2006 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2007 if (TexPixelsAlpha8)
2008 IM_FREE(TexPixelsAlpha8);
2009 if (TexPixelsRGBA32)
2010 IM_FREE(TexPixelsRGBA32);
2011 TexPixelsAlpha8 = NULL;
2012 TexPixelsRGBA32 = NULL;
2013 TexPixelsUseColors = false;
2014 // Important: we leave TexReady untouched
2015 }
2016
ClearFonts()2017 void ImFontAtlas::ClearFonts()
2018 {
2019 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2020 Fonts.clear_delete();
2021 TexReady = false;
2022 }
2023
Clear()2024 void ImFontAtlas::Clear()
2025 {
2026 ClearInputData();
2027 ClearTexData();
2028 ClearFonts();
2029 }
2030
GetTexDataAsAlpha8(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)2031 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2032 {
2033 // Build atlas on demand
2034 if (TexPixelsAlpha8 == NULL)
2035 Build();
2036
2037 *out_pixels = TexPixelsAlpha8;
2038 if (out_width) *out_width = TexWidth;
2039 if (out_height) *out_height = TexHeight;
2040 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
2041 }
2042
GetTexDataAsRGBA32(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)2043 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
2044 {
2045 // Convert to RGBA32 format on demand
2046 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
2047 if (!TexPixelsRGBA32)
2048 {
2049 unsigned char* pixels = NULL;
2050 GetTexDataAsAlpha8(&pixels, NULL, NULL);
2051 if (pixels)
2052 {
2053 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
2054 const unsigned char* src = pixels;
2055 unsigned int* dst = TexPixelsRGBA32;
2056 for (int n = TexWidth * TexHeight; n > 0; n--)
2057 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
2058 }
2059 }
2060
2061 *out_pixels = (unsigned char*)TexPixelsRGBA32;
2062 if (out_width) *out_width = TexWidth;
2063 if (out_height) *out_height = TexHeight;
2064 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
2065 }
2066
AddFont(const ImFontConfig * font_cfg)2067 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
2068 {
2069 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2070 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
2071 IM_ASSERT(font_cfg->SizePixels > 0.0f);
2072
2073 // Create new font
2074 if (!font_cfg->MergeMode)
2075 Fonts.push_back(IM_NEW(ImFont));
2076 else
2077 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.
2078
2079 ConfigData.push_back(*font_cfg);
2080 ImFontConfig& new_font_cfg = ConfigData.back();
2081 if (new_font_cfg.DstFont == NULL)
2082 new_font_cfg.DstFont = Fonts.back();
2083 if (!new_font_cfg.FontDataOwnedByAtlas)
2084 {
2085 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
2086 new_font_cfg.FontDataOwnedByAtlas = true;
2087 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
2088 }
2089
2090 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
2091 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
2092
2093 // Invalidate texture
2094 TexReady = false;
2095 ClearTexData();
2096 return new_font_cfg.DstFont;
2097 }
2098
2099 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
2100 static unsigned int stb_decompress_length(const unsigned char* input);
2101 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
2102 static const char* GetDefaultCompressedFontDataTTFBase85();
Decode85Byte(char c)2103 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
Decode85(const unsigned char * src,unsigned char * dst)2104 static void Decode85(const unsigned char* src, unsigned char* dst)
2105 {
2106 while (*src)
2107 {
2108 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
2109 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.
2110 src += 5;
2111 dst += 4;
2112 }
2113 }
2114
2115 // Load embedded ProggyClean.ttf at size 13, disable oversampling
AddFontDefault(const ImFontConfig * font_cfg_template)2116 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
2117 {
2118 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2119 if (!font_cfg_template)
2120 {
2121 font_cfg.OversampleH = font_cfg.OversampleV = 1;
2122 font_cfg.PixelSnapH = true;
2123 }
2124 if (font_cfg.SizePixels <= 0.0f)
2125 font_cfg.SizePixels = 13.0f * 1.0f;
2126 if (font_cfg.Name[0] == '\0')
2127 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
2128 font_cfg.EllipsisChar = (ImWchar)0x0085;
2129 font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
2130
2131 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
2132 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
2133 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
2134 return font;
2135 }
2136
AddFontFromFileTTF(const char * filename,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2137 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2138 {
2139 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2140 size_t data_size = 0;
2141 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
2142 if (!data)
2143 {
2144 IM_ASSERT_USER_ERROR(0, "Could not load font file!");
2145 return NULL;
2146 }
2147 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2148 if (font_cfg.Name[0] == '\0')
2149 {
2150 // Store a short copy of filename into into the font name for convenience
2151 const char* p;
2152 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
2153 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
2154 }
2155 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
2156 }
2157
2158 // 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)2159 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2160 {
2161 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2162 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2163 IM_ASSERT(font_cfg.FontData == NULL);
2164 font_cfg.FontData = ttf_data;
2165 font_cfg.FontDataSize = ttf_size;
2166 font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
2167 if (glyph_ranges)
2168 font_cfg.GlyphRanges = glyph_ranges;
2169 return AddFont(&font_cfg);
2170 }
2171
AddFontFromMemoryCompressedTTF(const void * compressed_ttf_data,int compressed_ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2172 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2173 {
2174 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
2175 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
2176 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
2177
2178 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2179 IM_ASSERT(font_cfg.FontData == NULL);
2180 font_cfg.FontDataOwnedByAtlas = true;
2181 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
2182 }
2183
AddFontFromMemoryCompressedBase85TTF(const char * compressed_ttf_data_base85,float size_pixels,const ImFontConfig * font_cfg,const ImWchar * glyph_ranges)2184 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
2185 {
2186 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
2187 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
2188 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
2189 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
2190 IM_FREE(compressed_ttf);
2191 return font;
2192 }
2193
AddCustomRectRegular(int width,int height)2194 int ImFontAtlas::AddCustomRectRegular(int width, int height)
2195 {
2196 IM_ASSERT(width > 0 && width <= 0xFFFF);
2197 IM_ASSERT(height > 0 && height <= 0xFFFF);
2198 ImFontAtlasCustomRect r;
2199 r.Width = (unsigned short)width;
2200 r.Height = (unsigned short)height;
2201 CustomRects.push_back(r);
2202 return CustomRects.Size - 1; // Return index
2203 }
2204
AddCustomRectFontGlyph(ImFont * font,ImWchar id,int width,int height,float advance_x,const ImVec2 & offset)2205 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
2206 {
2207 #ifdef IMGUI_USE_WCHAR32
2208 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
2209 #endif
2210 IM_ASSERT(font != NULL);
2211 IM_ASSERT(width > 0 && width <= 0xFFFF);
2212 IM_ASSERT(height > 0 && height <= 0xFFFF);
2213 ImFontAtlasCustomRect r;
2214 r.Width = (unsigned short)width;
2215 r.Height = (unsigned short)height;
2216 r.GlyphID = id;
2217 r.GlyphAdvanceX = advance_x;
2218 r.GlyphOffset = offset;
2219 r.Font = font;
2220 CustomRects.push_back(r);
2221 return CustomRects.Size - 1; // Return index
2222 }
2223
CalcCustomRectUV(const ImFontAtlasCustomRect * rect,ImVec2 * out_uv_min,ImVec2 * out_uv_max) const2224 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
2225 {
2226 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
2227 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
2228 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
2229 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
2230 }
2231
GetMouseCursorTexData(ImGuiMouseCursor cursor_type,ImVec2 * out_offset,ImVec2 * out_size,ImVec2 out_uv_border[2],ImVec2 out_uv_fill[2])2232 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
2233 {
2234 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
2235 return false;
2236 if (Flags & ImFontAtlasFlags_NoMouseCursors)
2237 return false;
2238
2239 IM_ASSERT(PackIdMouseCursors != -1);
2240 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
2241 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
2242 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
2243 *out_size = size;
2244 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
2245 out_uv_border[0] = (pos) * TexUvScale;
2246 out_uv_border[1] = (pos + size) * TexUvScale;
2247 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2248 out_uv_fill[0] = (pos) * TexUvScale;
2249 out_uv_fill[1] = (pos + size) * TexUvScale;
2250 return true;
2251 }
2252
Build()2253 bool ImFontAtlas::Build()
2254 {
2255 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2256
2257 // Default font is none are specified
2258 if (ConfigData.Size == 0)
2259 AddFontDefault();
2260
2261 // Select builder
2262 // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which
2263 // may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
2264 // using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere
2265 // and point to it instead of pointing directly to return value of the GetBuilderXXX functions.
2266 const ImFontBuilderIO* builder_io = FontBuilderIO;
2267 if (builder_io == NULL)
2268 {
2269 #ifdef IMGUI_ENABLE_FREETYPE
2270 builder_io = ImGuiFreeType::GetBuilderForFreeType();
2271 #elif defined(IMGUI_ENABLE_STB_TRUETYPE)
2272 builder_io = ImFontAtlasGetBuilderForStbTruetype();
2273 #else
2274 IM_ASSERT(0); // Invalid Build function
2275 #endif
2276 }
2277
2278 // Build
2279 return builder_io->FontBuilder_Build(this);
2280 }
2281
ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256],float in_brighten_factor)2282 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
2283 {
2284 for (unsigned int i = 0; i < 256; i++)
2285 {
2286 unsigned int value = (unsigned int)(i * in_brighten_factor);
2287 out_table[i] = value > 255 ? 255 : (value & 0xFF);
2288 }
2289 }
2290
ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256],unsigned char * pixels,int x,int y,int w,int h,int stride)2291 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
2292 {
2293 unsigned char* data = pixels + x + y * stride;
2294 for (int j = h; j > 0; j--, data += stride)
2295 for (int i = 0; i < w; i++)
2296 data[i] = table[data[i]];
2297 }
2298
2299 #ifdef IMGUI_ENABLE_STB_TRUETYPE
2300 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
2301 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
2302 struct ImFontBuildSrcData
2303 {
2304 stbtt_fontinfo FontInfo;
2305 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
2306 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
2307 stbtt_packedchar* PackedChars; // Output glyphs
2308 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
2309 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
2310 int GlyphsHighest; // Highest requested codepoint
2311 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
2312 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
2313 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
2314 };
2315
2316 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
2317 struct ImFontBuildDstData
2318 {
2319 int SrcCount; // Number of source fonts targeting this destination font.
2320 int GlyphsHighest;
2321 int GlyphsCount;
2322 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
2323 };
2324
UnpackBitVectorToFlatIndexList(const ImBitVector * in,ImVector<int> * out)2325 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
2326 {
2327 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
2328 const ImU32* it_begin = in->Storage.begin();
2329 const ImU32* it_end = in->Storage.end();
2330 for (const ImU32* it = it_begin; it < it_end; it++)
2331 if (ImU32 entries_32 = *it)
2332 for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
2333 if (entries_32 & ((ImU32)1 << bit_n))
2334 out->push_back((int)(((it - it_begin) << 5) + bit_n));
2335 }
2336
ImFontAtlasBuildWithStbTruetype(ImFontAtlas * atlas)2337 static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
2338 {
2339 IM_ASSERT(atlas->ConfigData.Size > 0);
2340
2341 ImFontAtlasBuildInit(atlas);
2342
2343 // Clear atlas
2344 atlas->TexID = (ImTextureID)NULL;
2345 atlas->TexWidth = atlas->TexHeight = 0;
2346 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
2347 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
2348 atlas->ClearTexData();
2349
2350 // Temporary storage for building
2351 ImVector<ImFontBuildSrcData> src_tmp_array;
2352 ImVector<ImFontBuildDstData> dst_tmp_array;
2353 src_tmp_array.resize(atlas->ConfigData.Size);
2354 dst_tmp_array.resize(atlas->Fonts.Size);
2355 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
2356 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
2357
2358 // 1. Initialize font loading structure, check font data validity
2359 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
2360 {
2361 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2362 ImFontConfig& cfg = atlas->ConfigData[src_i];
2363 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
2364
2365 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
2366 src_tmp.DstIndex = -1;
2367 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
2368 if (cfg.DstFont == atlas->Fonts[output_i])
2369 src_tmp.DstIndex = output_i;
2370 if (src_tmp.DstIndex == -1)
2371 {
2372 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
2373 return false;
2374 }
2375 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
2376 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
2377 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
2378 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
2379 return false;
2380
2381 // Measure highest codepoints
2382 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2383 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
2384 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2385 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
2386 dst_tmp.SrcCount++;
2387 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
2388 }
2389
2390 // 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.
2391 int total_glyphs_count = 0;
2392 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2393 {
2394 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2395 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2396 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
2397 if (dst_tmp.GlyphsSet.Storage.empty())
2398 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
2399
2400 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2401 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
2402 {
2403 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
2404 continue;
2405 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
2406 continue;
2407
2408 // Add to avail set/counters
2409 src_tmp.GlyphsCount++;
2410 dst_tmp.GlyphsCount++;
2411 src_tmp.GlyphsSet.SetBit(codepoint);
2412 dst_tmp.GlyphsSet.SetBit(codepoint);
2413 total_glyphs_count++;
2414 }
2415 }
2416
2417 // 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)
2418 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2419 {
2420 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2421 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
2422 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
2423 src_tmp.GlyphsSet.Clear();
2424 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
2425 }
2426 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
2427 dst_tmp_array[dst_i].GlyphsSet.Clear();
2428 dst_tmp_array.clear();
2429
2430 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
2431 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
2432 ImVector<stbrp_rect> buf_rects;
2433 ImVector<stbtt_packedchar> buf_packedchars;
2434 buf_rects.resize(total_glyphs_count);
2435 buf_packedchars.resize(total_glyphs_count);
2436 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
2437 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
2438
2439 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
2440 int total_surface = 0;
2441 int buf_rects_out_n = 0;
2442 int buf_packedchars_out_n = 0;
2443 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2444 {
2445 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2446 if (src_tmp.GlyphsCount == 0)
2447 continue;
2448
2449 src_tmp.Rects = &buf_rects[buf_rects_out_n];
2450 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
2451 buf_rects_out_n += src_tmp.GlyphsCount;
2452 buf_packedchars_out_n += src_tmp.GlyphsCount;
2453
2454 // Convert our ranges in the format stb_truetype wants
2455 ImFontConfig& cfg = atlas->ConfigData[src_i];
2456 src_tmp.PackRange.font_size = cfg.SizePixels;
2457 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
2458 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
2459 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
2460 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
2461 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
2462 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
2463
2464 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
2465 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
2466 const int padding = atlas->TexGlyphPadding;
2467 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
2468 {
2469 int x0, y0, x1, y1;
2470 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
2471 IM_ASSERT(glyph_index_in_font != 0);
2472 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
2473 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
2474 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
2475 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
2476 }
2477 }
2478
2479 // We need a width for the skyline algorithm, any width!
2480 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
2481 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
2482 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
2483 atlas->TexHeight = 0;
2484 if (atlas->TexDesiredWidth > 0)
2485 atlas->TexWidth = atlas->TexDesiredWidth;
2486 else
2487 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
2488
2489 // 5. Start packing
2490 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
2491 const int TEX_HEIGHT_MAX = 1024 * 32;
2492 stbtt_pack_context spc = {};
2493 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
2494 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
2495
2496 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
2497 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2498 {
2499 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2500 if (src_tmp.GlyphsCount == 0)
2501 continue;
2502
2503 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
2504
2505 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
2506 // 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?)
2507 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2508 if (src_tmp.Rects[glyph_i].was_packed)
2509 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
2510 }
2511
2512 // 7. Allocate texture
2513 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
2514 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
2515 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
2516 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
2517 spc.pixels = atlas->TexPixelsAlpha8;
2518 spc.height = atlas->TexHeight;
2519
2520 // 8. Render/rasterize font characters into the texture
2521 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2522 {
2523 ImFontConfig& cfg = atlas->ConfigData[src_i];
2524 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2525 if (src_tmp.GlyphsCount == 0)
2526 continue;
2527
2528 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
2529
2530 // Apply multiply operator
2531 if (cfg.RasterizerMultiply != 1.0f)
2532 {
2533 unsigned char multiply_table[256];
2534 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
2535 stbrp_rect* r = &src_tmp.Rects[0];
2536 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
2537 if (r->was_packed)
2538 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
2539 }
2540 src_tmp.Rects = NULL;
2541 }
2542
2543 // End packing
2544 stbtt_PackEnd(&spc);
2545 buf_rects.clear();
2546
2547 // 9. Setup ImFont and glyphs for runtime
2548 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2549 {
2550 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2551 if (src_tmp.GlyphsCount == 0)
2552 continue;
2553
2554 // When merging fonts with MergeMode=true:
2555 // - We can have multiple input fonts writing into a same destination font.
2556 // - dst_font->ConfigData is != from cfg which is our source configuration.
2557 ImFontConfig& cfg = atlas->ConfigData[src_i];
2558 ImFont* dst_font = cfg.DstFont;
2559
2560 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2561 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2562 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2563
2564 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2565 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2566 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2567 const float font_off_x = cfg.GlyphOffset.x;
2568 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
2569
2570 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2571 {
2572 // Register glyph
2573 const int codepoint = src_tmp.GlyphsList[glyph_i];
2574 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2575 stbtt_aligned_quad q;
2576 float unused_x = 0.0f, unused_y = 0.0f;
2577 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
2578 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);
2579 }
2580 }
2581
2582 // Cleanup
2583 src_tmp_array.clear_destruct();
2584
2585 ImFontAtlasBuildFinish(atlas);
2586 return true;
2587 }
2588
ImFontAtlasGetBuilderForStbTruetype()2589 const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()
2590 {
2591 static ImFontBuilderIO io;
2592 io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype;
2593 return &io;
2594 }
2595
2596 #endif // IMGUI_ENABLE_STB_TRUETYPE
2597
ImFontAtlasBuildSetupFont(ImFontAtlas * atlas,ImFont * font,ImFontConfig * font_config,float ascent,float descent)2598 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2599 {
2600 if (!font_config->MergeMode)
2601 {
2602 font->ClearOutputData();
2603 font->FontSize = font_config->SizePixels;
2604 font->ConfigData = font_config;
2605 font->ConfigDataCount = 0;
2606 font->ContainerAtlas = atlas;
2607 font->Ascent = ascent;
2608 font->Descent = descent;
2609 }
2610 font->ConfigDataCount++;
2611 }
2612
ImFontAtlasBuildPackCustomRects(ImFontAtlas * atlas,void * stbrp_context_opaque)2613 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2614 {
2615 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2616 IM_ASSERT(pack_context != NULL);
2617
2618 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
2619 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2620
2621 ImVector<stbrp_rect> pack_rects;
2622 pack_rects.resize(user_rects.Size);
2623 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2624 for (int i = 0; i < user_rects.Size; i++)
2625 {
2626 pack_rects[i].w = user_rects[i].Width;
2627 pack_rects[i].h = user_rects[i].Height;
2628 }
2629 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2630 for (int i = 0; i < pack_rects.Size; i++)
2631 if (pack_rects[i].was_packed)
2632 {
2633 user_rects[i].X = pack_rects[i].x;
2634 user_rects[i].Y = pack_rects[i].y;
2635 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2636 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2637 }
2638 }
2639
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)2640 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)
2641 {
2642 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2643 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2644 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
2645 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2646 for (int off_x = 0; off_x < w; off_x++)
2647 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
2648 }
2649
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)2650 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)
2651 {
2652 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2653 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2654 unsigned int* out_pixel = atlas->TexPixelsRGBA32 + 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 : IM_COL32_BLACK_TRANS;
2658 }
2659
ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas * atlas)2660 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2661 {
2662 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
2663 IM_ASSERT(r->IsPacked());
2664
2665 const int w = atlas->TexWidth;
2666 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2667 {
2668 // Render/copy pixels
2669 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2670 const int x_for_white = r->X;
2671 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2672 if (atlas->TexPixelsAlpha8 != NULL)
2673 {
2674 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);
2675 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);
2676 }
2677 else
2678 {
2679 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);
2680 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);
2681 }
2682 }
2683 else
2684 {
2685 // Render 4 white pixels
2686 IM_ASSERT(r->Width == 2 && r->Height == 2);
2687 const int offset = (int)r->X + (int)r->Y * w;
2688 if (atlas->TexPixelsAlpha8 != NULL)
2689 {
2690 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2691 }
2692 else
2693 {
2694 atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
2695 }
2696 }
2697 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
2698 }
2699
ImFontAtlasBuildRenderLinesTexData(ImFontAtlas * atlas)2700 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
2701 {
2702 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
2703 return;
2704
2705 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
2706 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
2707 IM_ASSERT(r->IsPacked());
2708 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
2709 {
2710 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
2711 unsigned int y = n;
2712 unsigned int line_width = n;
2713 unsigned int pad_left = (r->Width - line_width) / 2;
2714 unsigned int pad_right = r->Width - (pad_left + line_width);
2715
2716 // Write each slice
2717 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
2718 if (atlas->TexPixelsAlpha8 != NULL)
2719 {
2720 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
2721 for (unsigned int i = 0; i < pad_left; i++)
2722 *(write_ptr + i) = 0x00;
2723
2724 for (unsigned int i = 0; i < line_width; i++)
2725 *(write_ptr + pad_left + i) = 0xFF;
2726
2727 for (unsigned int i = 0; i < pad_right; i++)
2728 *(write_ptr + pad_left + line_width + i) = 0x00;
2729 }
2730 else
2731 {
2732 unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
2733 for (unsigned int i = 0; i < pad_left; i++)
2734 *(write_ptr + i) = IM_COL32_BLACK_TRANS;
2735
2736 for (unsigned int i = 0; i < line_width; i++)
2737 *(write_ptr + pad_left + i) = IM_COL32_WHITE;
2738
2739 for (unsigned int i = 0; i < pad_right; i++)
2740 *(write_ptr + pad_left + line_width + i) = IM_COL32_BLACK_TRANS;
2741 }
2742
2743 // Calculate UVs for this line
2744 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
2745 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
2746 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
2747 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
2748 }
2749 }
2750
2751 // Note: this is called / shared by both the stb_truetype and the FreeType builder
ImFontAtlasBuildInit(ImFontAtlas * atlas)2752 void ImFontAtlasBuildInit(ImFontAtlas* atlas)
2753 {
2754 // Register texture region for mouse cursors or standard white pixels
2755 if (atlas->PackIdMouseCursors < 0)
2756 {
2757 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2758 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2759 else
2760 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
2761 }
2762
2763 // Register texture region for thick lines
2764 // 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
2765 if (atlas->PackIdLines < 0)
2766 {
2767 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
2768 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
2769 }
2770 }
2771
2772 // This is called/shared by both the stb_truetype and the FreeType builder.
ImFontAtlasBuildFinish(ImFontAtlas * atlas)2773 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2774 {
2775 // Render into our custom data blocks
2776 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL);
2777 ImFontAtlasBuildRenderDefaultTexData(atlas);
2778 ImFontAtlasBuildRenderLinesTexData(atlas);
2779
2780 // Register custom rectangle glyphs
2781 for (int i = 0; i < atlas->CustomRects.Size; i++)
2782 {
2783 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
2784 if (r->Font == NULL || r->GlyphID == 0)
2785 continue;
2786
2787 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
2788 IM_ASSERT(r->Font->ContainerAtlas == atlas);
2789 ImVec2 uv0, uv1;
2790 atlas->CalcCustomRectUV(r, &uv0, &uv1);
2791 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);
2792 }
2793
2794 // Build all fonts lookup tables
2795 for (int i = 0; i < atlas->Fonts.Size; i++)
2796 if (atlas->Fonts[i]->DirtyLookupTables)
2797 atlas->Fonts[i]->BuildLookupTable();
2798
2799 atlas->TexReady = true;
2800 }
2801
2802 // Retrieve list of range (2 int per range, values are inclusive)
GetGlyphRangesDefault()2803 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2804 {
2805 static const ImWchar ranges[] =
2806 {
2807 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2808 0,
2809 };
2810 return &ranges[0];
2811 }
2812
GetGlyphRangesKorean()2813 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2814 {
2815 static const ImWchar ranges[] =
2816 {
2817 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2818 0x3131, 0x3163, // Korean alphabets
2819 0xAC00, 0xD7A3, // Korean characters
2820 0xFFFD, 0xFFFD, // Invalid
2821 0,
2822 };
2823 return &ranges[0];
2824 }
2825
GetGlyphRangesChineseFull()2826 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2827 {
2828 static const ImWchar ranges[] =
2829 {
2830 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2831 0x2000, 0x206F, // General Punctuation
2832 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2833 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2834 0xFF00, 0xFFEF, // Half-width characters
2835 0xFFFD, 0xFFFD, // Invalid
2836 0x4e00, 0x9FAF, // CJK Ideograms
2837 0,
2838 };
2839 return &ranges[0];
2840 }
2841
UnpackAccumulativeOffsetsIntoRanges(int base_codepoint,const short * accumulative_offsets,int accumulative_offsets_count,ImWchar * out_ranges)2842 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2843 {
2844 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2845 {
2846 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2847 base_codepoint += accumulative_offsets[n];
2848 }
2849 out_ranges[0] = 0;
2850 }
2851
2852 //-------------------------------------------------------------------------
2853 // [SECTION] ImFontAtlas glyph ranges helpers
2854 //-------------------------------------------------------------------------
2855
GetGlyphRangesChineseSimplifiedCommon()2856 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2857 {
2858 // Store 2500 regularly used characters for Simplified Chinese.
2859 // 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
2860 // This table covers 97.97% of all characters used during the month in July, 1987.
2861 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2862 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2863 static const short accumulative_offsets_from_0x4E00[] =
2864 {
2865 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,
2866 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,
2867 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,
2868 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,
2869 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,
2870 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,
2871 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,
2872 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,
2873 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,
2874 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,
2875 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,
2876 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,
2877 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,
2878 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,
2879 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,
2880 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,
2881 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,
2882 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,
2883 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,
2884 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,
2885 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,
2886 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,
2887 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,
2888 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,
2889 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,
2890 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,
2891 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,
2892 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,
2893 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,
2894 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,
2895 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,
2896 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,
2897 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,
2898 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,
2899 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,
2900 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,
2901 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,
2902 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,
2903 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,
2904 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
2905 };
2906 static ImWchar base_ranges[] = // not zero-terminated
2907 {
2908 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2909 0x2000, 0x206F, // General Punctuation
2910 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2911 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2912 0xFF00, 0xFFEF, // Half-width characters
2913 0xFFFD, 0xFFFD // Invalid
2914 };
2915 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2916 if (!full_ranges[0])
2917 {
2918 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2919 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2920 }
2921 return &full_ranges[0];
2922 }
2923
GetGlyphRangesJapanese()2924 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2925 {
2926 // 2999 ideograms code points for Japanese
2927 // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
2928 // - 863 Jinmeiyo (meaning "for personal name") Kanji code points
2929 // - Sourced from the character information database of the Information-technology Promotion Agency, Japan
2930 // - https://mojikiban.ipa.go.jp/mji/
2931 // - Available under the terms of the Creative Commons Attribution-ShareAlike 2.1 Japan (CC BY-SA 2.1 JP).
2932 // - https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en
2933 // - https://creativecommons.org/licenses/by-sa/2.1/jp/legalcode
2934 // - You can generate this code by the script at:
2935 // - https://github.com/vaiorabbit/everyday_use_kanji
2936 // - References:
2937 // - List of Joyo Kanji
2938 // - (Official list by the Agency for Cultural Affairs) https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kakuki/14/tosin02/index.html
2939 // - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
2940 // - List of Jinmeiyo Kanji
2941 // - (Official list by the Ministry of Justice) http://www.moj.go.jp/MINJI/minji86.html
2942 // - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
2943 // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
2944 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2945 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2946 static const short accumulative_offsets_from_0x4E00[] =
2947 {
2948 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,
2949 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,
2950 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,
2951 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,
2952 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,
2953 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,
2954 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,
2955 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,
2956 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,
2957 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,
2958 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,
2959 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,
2960 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,
2961 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,
2962 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,
2963 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,
2964 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,
2965 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,
2966 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,
2967 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,
2968 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,
2969 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,
2970 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,
2971 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,
2972 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,
2973 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,
2974 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,
2975 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,
2976 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,
2977 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,
2978 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,
2979 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,
2980 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,
2981 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,
2982 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,
2983 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,
2984 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,
2985 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,
2986 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,
2987 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,
2988 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,
2989 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,
2990 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,
2991 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,
2992 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,
2993 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,
2994 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,
2995 3,2,1,1,1,1,2,1,1,
2996 };
2997 static ImWchar base_ranges[] = // not zero-terminated
2998 {
2999 0x0020, 0x00FF, // Basic Latin + Latin Supplement
3000 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
3001 0x31F0, 0x31FF, // Katakana Phonetic Extensions
3002 0xFF00, 0xFFEF, // Half-width characters
3003 0xFFFD, 0xFFFD // Invalid
3004 };
3005 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
3006 if (!full_ranges[0])
3007 {
3008 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
3009 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
3010 }
3011 return &full_ranges[0];
3012 }
3013
GetGlyphRangesCyrillic()3014 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
3015 {
3016 static const ImWchar ranges[] =
3017 {
3018 0x0020, 0x00FF, // Basic Latin + Latin Supplement
3019 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
3020 0x2DE0, 0x2DFF, // Cyrillic Extended-A
3021 0xA640, 0xA69F, // Cyrillic Extended-B
3022 0,
3023 };
3024 return &ranges[0];
3025 }
3026
GetGlyphRangesThai()3027 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
3028 {
3029 static const ImWchar ranges[] =
3030 {
3031 0x0020, 0x00FF, // Basic Latin
3032 0x2010, 0x205E, // Punctuations
3033 0x0E00, 0x0E7F, // Thai
3034 0,
3035 };
3036 return &ranges[0];
3037 }
3038
GetGlyphRangesVietnamese()3039 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
3040 {
3041 static const ImWchar ranges[] =
3042 {
3043 0x0020, 0x00FF, // Basic Latin
3044 0x0102, 0x0103,
3045 0x0110, 0x0111,
3046 0x0128, 0x0129,
3047 0x0168, 0x0169,
3048 0x01A0, 0x01A1,
3049 0x01AF, 0x01B0,
3050 0x1EA0, 0x1EF9,
3051 0,
3052 };
3053 return &ranges[0];
3054 }
3055
3056 //-----------------------------------------------------------------------------
3057 // [SECTION] ImFontGlyphRangesBuilder
3058 //-----------------------------------------------------------------------------
3059
AddText(const char * text,const char * text_end)3060 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
3061 {
3062 while (text_end ? (text < text_end) : *text)
3063 {
3064 unsigned int c = 0;
3065 int c_len = ImTextCharFromUtf8(&c, text, text_end);
3066 text += c_len;
3067 if (c_len == 0)
3068 break;
3069 AddChar((ImWchar)c);
3070 }
3071 }
3072
AddRanges(const ImWchar * ranges)3073 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
3074 {
3075 for (; ranges[0]; ranges += 2)
3076 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
3077 AddChar(c);
3078 }
3079
BuildRanges(ImVector<ImWchar> * out_ranges)3080 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
3081 {
3082 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
3083 for (int n = 0; n <= max_codepoint; n++)
3084 if (GetBit(n))
3085 {
3086 out_ranges->push_back((ImWchar)n);
3087 while (n < max_codepoint && GetBit(n + 1))
3088 n++;
3089 out_ranges->push_back((ImWchar)n);
3090 }
3091 out_ranges->push_back(0);
3092 }
3093
3094 //-----------------------------------------------------------------------------
3095 // [SECTION] ImFont
3096 //-----------------------------------------------------------------------------
3097
ImFont()3098 ImFont::ImFont()
3099 {
3100 FontSize = 0.0f;
3101 FallbackAdvanceX = 0.0f;
3102 FallbackChar = (ImWchar)-1;
3103 EllipsisChar = (ImWchar)-1;
3104 DotChar = (ImWchar)-1;
3105 FallbackGlyph = NULL;
3106 ContainerAtlas = NULL;
3107 ConfigData = NULL;
3108 ConfigDataCount = 0;
3109 DirtyLookupTables = false;
3110 Scale = 1.0f;
3111 Ascent = Descent = 0.0f;
3112 MetricsTotalSurface = 0;
3113 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
3114 }
3115
~ImFont()3116 ImFont::~ImFont()
3117 {
3118 ClearOutputData();
3119 }
3120
ClearOutputData()3121 void ImFont::ClearOutputData()
3122 {
3123 FontSize = 0.0f;
3124 FallbackAdvanceX = 0.0f;
3125 Glyphs.clear();
3126 IndexAdvanceX.clear();
3127 IndexLookup.clear();
3128 FallbackGlyph = NULL;
3129 ContainerAtlas = NULL;
3130 DirtyLookupTables = true;
3131 Ascent = Descent = 0.0f;
3132 MetricsTotalSurface = 0;
3133 }
3134
FindFirstExistingGlyph(ImFont * font,const ImWchar * candidate_chars,int candidate_chars_count)3135 static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count)
3136 {
3137 for (int n = 0; n < candidate_chars_count; n++)
3138 if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL)
3139 return candidate_chars[n];
3140 return (ImWchar)-1;
3141 }
3142
BuildLookupTable()3143 void ImFont::BuildLookupTable()
3144 {
3145 int max_codepoint = 0;
3146 for (int i = 0; i != Glyphs.Size; i++)
3147 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
3148
3149 // Build lookup table
3150 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
3151 IndexAdvanceX.clear();
3152 IndexLookup.clear();
3153 DirtyLookupTables = false;
3154 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
3155 GrowIndex(max_codepoint + 1);
3156 for (int i = 0; i < Glyphs.Size; i++)
3157 {
3158 int codepoint = (int)Glyphs[i].Codepoint;
3159 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
3160 IndexLookup[codepoint] = (ImWchar)i;
3161
3162 // Mark 4K page as used
3163 const int page_n = codepoint / 4096;
3164 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
3165 }
3166
3167 // Create a glyph to handle TAB
3168 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
3169 if (FindGlyph((ImWchar)' '))
3170 {
3171 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
3172 Glyphs.resize(Glyphs.Size + 1);
3173 ImFontGlyph& tab_glyph = Glyphs.back();
3174 tab_glyph = *FindGlyph((ImWchar)' ');
3175 tab_glyph.Codepoint = '\t';
3176 tab_glyph.AdvanceX *= IM_TABSIZE;
3177 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
3178 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
3179 }
3180
3181 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
3182 SetGlyphVisible((ImWchar)' ', false);
3183 SetGlyphVisible((ImWchar)'\t', false);
3184
3185 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
3186 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
3187 // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
3188 const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
3189 const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E };
3190 if (EllipsisChar == (ImWchar)-1)
3191 EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars));
3192 if (DotChar == (ImWchar)-1)
3193 DotChar = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars));
3194
3195 // Setup fallback character
3196 const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
3197 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
3198 if (FallbackGlyph == NULL)
3199 {
3200 FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars));
3201 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
3202 if (FallbackGlyph == NULL)
3203 {
3204 FallbackGlyph = &Glyphs.back();
3205 FallbackChar = (ImWchar)FallbackGlyph->Codepoint;
3206 }
3207 }
3208
3209 FallbackAdvanceX = FallbackGlyph->AdvanceX;
3210 for (int i = 0; i < max_codepoint + 1; i++)
3211 if (IndexAdvanceX[i] < 0.0f)
3212 IndexAdvanceX[i] = FallbackAdvanceX;
3213 }
3214
3215 // API is designed this way to avoid exposing the 4K page size
3216 // e.g. use with IsGlyphRangeUnused(0, 255)
IsGlyphRangeUnused(unsigned int c_begin,unsigned int c_last)3217 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
3218 {
3219 unsigned int page_begin = (c_begin / 4096);
3220 unsigned int page_last = (c_last / 4096);
3221 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
3222 if ((page_n >> 3) < sizeof(Used4kPagesMap))
3223 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
3224 return false;
3225 return true;
3226 }
3227
SetGlyphVisible(ImWchar c,bool visible)3228 void ImFont::SetGlyphVisible(ImWchar c, bool visible)
3229 {
3230 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
3231 glyph->Visible = visible ? 1 : 0;
3232 }
3233
GrowIndex(int new_size)3234 void ImFont::GrowIndex(int new_size)
3235 {
3236 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
3237 if (new_size <= IndexLookup.Size)
3238 return;
3239 IndexAdvanceX.resize(new_size, -1.0f);
3240 IndexLookup.resize(new_size, (ImWchar)-1);
3241 }
3242
3243 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
3244 // 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).
3245 // '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)3246 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)
3247 {
3248 if (cfg != NULL)
3249 {
3250 // Clamp & recenter if needed
3251 const float advance_x_original = advance_x;
3252 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
3253 if (advance_x != advance_x_original)
3254 {
3255 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
3256 x0 += char_off_x;
3257 x1 += char_off_x;
3258 }
3259
3260 // Snap to pixel
3261 if (cfg->PixelSnapH)
3262 advance_x = IM_ROUND(advance_x);
3263
3264 // Bake spacing
3265 advance_x += cfg->GlyphExtraSpacing.x;
3266 }
3267
3268 Glyphs.resize(Glyphs.Size + 1);
3269 ImFontGlyph& glyph = Glyphs.back();
3270 glyph.Codepoint = (unsigned int)codepoint;
3271 glyph.Visible = (x0 != x1) && (y0 != y1);
3272 glyph.Colored = false;
3273 glyph.X0 = x0;
3274 glyph.Y0 = y0;
3275 glyph.X1 = x1;
3276 glyph.Y1 = y1;
3277 glyph.U0 = u0;
3278 glyph.V0 = v0;
3279 glyph.U1 = u1;
3280 glyph.V1 = v1;
3281 glyph.AdvanceX = advance_x;
3282
3283 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
3284 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
3285 float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
3286 DirtyLookupTables = true;
3287 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
3288 }
3289
AddRemapChar(ImWchar dst,ImWchar src,bool overwrite_dst)3290 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
3291 {
3292 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
3293 unsigned int index_size = (unsigned int)IndexLookup.Size;
3294
3295 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
3296 return;
3297 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
3298 return;
3299
3300 GrowIndex(dst + 1);
3301 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
3302 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
3303 }
3304
FindGlyph(ImWchar c) const3305 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
3306 {
3307 if (c >= (size_t)IndexLookup.Size)
3308 return FallbackGlyph;
3309 const ImWchar i = IndexLookup.Data[c];
3310 if (i == (ImWchar)-1)
3311 return FallbackGlyph;
3312 return &Glyphs.Data[i];
3313 }
3314
FindGlyphNoFallback(ImWchar c) const3315 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
3316 {
3317 if (c >= (size_t)IndexLookup.Size)
3318 return NULL;
3319 const ImWchar i = IndexLookup.Data[c];
3320 if (i == (ImWchar)-1)
3321 return NULL;
3322 return &Glyphs.Data[i];
3323 }
3324
CalcWordWrapPositionA(float scale,const char * text,const char * text_end,float wrap_width) const3325 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
3326 {
3327 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
3328 // 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.)
3329
3330 // For references, possible wrap point marked with ^
3331 // "aaa bbb, ccc,ddd. eee fff. ggg!"
3332 // ^ ^ ^ ^ ^__ ^ ^
3333
3334 // List of hardcoded separators: .,;!?'"
3335
3336 // Skip extra blanks after a line returns (that includes not counting them in width computation)
3337 // e.g. "Hello world" --> "Hello" "World"
3338
3339 // Cut words that cannot possibly fit within one line.
3340 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
3341
3342 float line_width = 0.0f;
3343 float word_width = 0.0f;
3344 float blank_width = 0.0f;
3345 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
3346
3347 const char* word_end = text;
3348 const char* prev_word_end = NULL;
3349 bool inside_word = true;
3350
3351 const char* s = text;
3352 while (s < text_end)
3353 {
3354 unsigned int c = (unsigned int)*s;
3355 const char* next_s;
3356 if (c < 0x80)
3357 next_s = s + 1;
3358 else
3359 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
3360 if (c == 0)
3361 break;
3362
3363 if (c < 32)
3364 {
3365 if (c == '\n')
3366 {
3367 line_width = word_width = blank_width = 0.0f;
3368 inside_word = true;
3369 s = next_s;
3370 continue;
3371 }
3372 if (c == '\r')
3373 {
3374 s = next_s;
3375 continue;
3376 }
3377 }
3378
3379 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
3380 if (ImCharIsBlankW(c))
3381 {
3382 if (inside_word)
3383 {
3384 line_width += blank_width;
3385 blank_width = 0.0f;
3386 word_end = s;
3387 }
3388 blank_width += char_width;
3389 inside_word = false;
3390 }
3391 else
3392 {
3393 word_width += char_width;
3394 if (inside_word)
3395 {
3396 word_end = next_s;
3397 }
3398 else
3399 {
3400 prev_word_end = word_end;
3401 line_width += word_width + blank_width;
3402 word_width = blank_width = 0.0f;
3403 }
3404
3405 // Allow wrapping after punctuation.
3406 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
3407 }
3408
3409 // We ignore blank width at the end of the line (they can be skipped)
3410 if (line_width + word_width > wrap_width)
3411 {
3412 // Words that cannot possibly fit within an entire line will be cut anywhere.
3413 if (word_width < wrap_width)
3414 s = prev_word_end ? prev_word_end : word_end;
3415 break;
3416 }
3417
3418 s = next_s;
3419 }
3420
3421 return s;
3422 }
3423
CalcTextSizeA(float size,float max_width,float wrap_width,const char * text_begin,const char * text_end,const char ** remaining) const3424 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
3425 {
3426 if (!text_end)
3427 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
3428
3429 const float line_height = size;
3430 const float scale = size / FontSize;
3431
3432 ImVec2 text_size = ImVec2(0, 0);
3433 float line_width = 0.0f;
3434
3435 const bool word_wrap_enabled = (wrap_width > 0.0f);
3436 const char* word_wrap_eol = NULL;
3437
3438 const char* s = text_begin;
3439 while (s < text_end)
3440 {
3441 if (word_wrap_enabled)
3442 {
3443 // 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.
3444 if (!word_wrap_eol)
3445 {
3446 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
3447 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3448 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
3449 }
3450
3451 if (s >= word_wrap_eol)
3452 {
3453 if (text_size.x < line_width)
3454 text_size.x = line_width;
3455 text_size.y += line_height;
3456 line_width = 0.0f;
3457 word_wrap_eol = NULL;
3458
3459 // Wrapping skips upcoming blanks
3460 while (s < text_end)
3461 {
3462 const char c = *s;
3463 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3464 }
3465 continue;
3466 }
3467 }
3468
3469 // Decode and advance source
3470 const char* prev_s = s;
3471 unsigned int c = (unsigned int)*s;
3472 if (c < 0x80)
3473 {
3474 s += 1;
3475 }
3476 else
3477 {
3478 s += ImTextCharFromUtf8(&c, s, text_end);
3479 if (c == 0) // Malformed UTF-8?
3480 break;
3481 }
3482
3483 if (c < 32)
3484 {
3485 if (c == '\n')
3486 {
3487 text_size.x = ImMax(text_size.x, line_width);
3488 text_size.y += line_height;
3489 line_width = 0.0f;
3490 continue;
3491 }
3492 if (c == '\r')
3493 continue;
3494 }
3495
3496 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
3497 if (line_width + char_width >= max_width)
3498 {
3499 s = prev_s;
3500 break;
3501 }
3502
3503 line_width += char_width;
3504 }
3505
3506 if (text_size.x < line_width)
3507 text_size.x = line_width;
3508
3509 if (line_width > 0 || text_size.y == 0.0f)
3510 text_size.y += line_height;
3511
3512 if (remaining)
3513 *remaining = s;
3514
3515 return text_size;
3516 }
3517
3518 // 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) const3519 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
3520 {
3521 const ImFontGlyph* glyph = FindGlyph(c);
3522 if (!glyph || !glyph->Visible)
3523 return;
3524 if (glyph->Colored)
3525 col |= ~IM_COL32_A_MASK;
3526 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
3527 pos.x = IM_FLOOR(pos.x);
3528 pos.y = IM_FLOOR(pos.y);
3529 draw_list->PrimReserve(6, 4);
3530 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);
3531 }
3532
3533 // 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) const3534 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
3535 {
3536 if (!text_end)
3537 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
3538
3539 // Align to be pixel perfect
3540 pos.x = IM_FLOOR(pos.x);
3541 pos.y = IM_FLOOR(pos.y);
3542 float x = pos.x;
3543 float y = pos.y;
3544 if (y > clip_rect.w)
3545 return;
3546
3547 const float scale = size / FontSize;
3548 const float line_height = FontSize * scale;
3549 const bool word_wrap_enabled = (wrap_width > 0.0f);
3550 const char* word_wrap_eol = NULL;
3551
3552 // Fast-forward to first visible line
3553 const char* s = text_begin;
3554 if (y + line_height < clip_rect.y && !word_wrap_enabled)
3555 while (y + line_height < clip_rect.y && s < text_end)
3556 {
3557 s = (const char*)memchr(s, '\n', text_end - s);
3558 s = s ? s + 1 : text_end;
3559 y += line_height;
3560 }
3561
3562 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
3563 // 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)
3564 if (text_end - s > 10000 && !word_wrap_enabled)
3565 {
3566 const char* s_end = s;
3567 float y_end = y;
3568 while (y_end < clip_rect.w && s_end < text_end)
3569 {
3570 s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
3571 s_end = s_end ? s_end + 1 : text_end;
3572 y_end += line_height;
3573 }
3574 text_end = s_end;
3575 }
3576 if (s == text_end)
3577 return;
3578
3579 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
3580 const int vtx_count_max = (int)(text_end - s) * 4;
3581 const int idx_count_max = (int)(text_end - s) * 6;
3582 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
3583 draw_list->PrimReserve(idx_count_max, vtx_count_max);
3584
3585 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
3586 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
3587 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
3588
3589 const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
3590
3591 while (s < text_end)
3592 {
3593 if (word_wrap_enabled)
3594 {
3595 // 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.
3596 if (!word_wrap_eol)
3597 {
3598 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
3599 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3600 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
3601 }
3602
3603 if (s >= word_wrap_eol)
3604 {
3605 x = pos.x;
3606 y += line_height;
3607 word_wrap_eol = NULL;
3608
3609 // Wrapping skips upcoming blanks
3610 while (s < text_end)
3611 {
3612 const char c = *s;
3613 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3614 }
3615 continue;
3616 }
3617 }
3618
3619 // Decode and advance source
3620 unsigned int c = (unsigned int)*s;
3621 if (c < 0x80)
3622 {
3623 s += 1;
3624 }
3625 else
3626 {
3627 s += ImTextCharFromUtf8(&c, s, text_end);
3628 if (c == 0) // Malformed UTF-8?
3629 break;
3630 }
3631
3632 if (c < 32)
3633 {
3634 if (c == '\n')
3635 {
3636 x = pos.x;
3637 y += line_height;
3638 if (y > clip_rect.w)
3639 break; // break out of main loop
3640 continue;
3641 }
3642 if (c == '\r')
3643 continue;
3644 }
3645
3646 const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
3647 if (glyph == NULL)
3648 continue;
3649
3650 float char_width = glyph->AdvanceX * scale;
3651 if (glyph->Visible)
3652 {
3653 // 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
3654 float x1 = x + glyph->X0 * scale;
3655 float x2 = x + glyph->X1 * scale;
3656 float y1 = y + glyph->Y0 * scale;
3657 float y2 = y + glyph->Y1 * scale;
3658 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
3659 {
3660 // Render a character
3661 float u1 = glyph->U0;
3662 float v1 = glyph->V0;
3663 float u2 = glyph->U1;
3664 float v2 = glyph->V1;
3665
3666 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
3667 if (cpu_fine_clip)
3668 {
3669 if (x1 < clip_rect.x)
3670 {
3671 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
3672 x1 = clip_rect.x;
3673 }
3674 if (y1 < clip_rect.y)
3675 {
3676 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
3677 y1 = clip_rect.y;
3678 }
3679 if (x2 > clip_rect.z)
3680 {
3681 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
3682 x2 = clip_rect.z;
3683 }
3684 if (y2 > clip_rect.w)
3685 {
3686 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
3687 y2 = clip_rect.w;
3688 }
3689 if (y1 >= y2)
3690 {
3691 x += char_width;
3692 continue;
3693 }
3694 }
3695
3696 // Support for untinted glyphs
3697 ImU32 glyph_col = glyph->Colored ? col_untinted : col;
3698
3699 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
3700 {
3701 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
3702 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
3703 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;
3704 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;
3705 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;
3706 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;
3707 vtx_write += 4;
3708 vtx_current_idx += 4;
3709 idx_write += 6;
3710 }
3711 }
3712 }
3713 x += char_width;
3714 }
3715
3716 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
3717 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
3718 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
3719 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
3720 draw_list->_VtxWritePtr = vtx_write;
3721 draw_list->_IdxWritePtr = idx_write;
3722 draw_list->_VtxCurrentIdx = vtx_current_idx;
3723 }
3724
3725 //-----------------------------------------------------------------------------
3726 // [SECTION] ImGui Internal Render Helpers
3727 //-----------------------------------------------------------------------------
3728 // Vaguely redesigned to stop accessing ImGui global state:
3729 // - RenderArrow()
3730 // - RenderBullet()
3731 // - RenderCheckMark()
3732 // - RenderMouseCursor()
3733 // - RenderArrowPointingAt()
3734 // - RenderRectFilledRangeH()
3735 // - RenderRectFilledWithHole()
3736 //-----------------------------------------------------------------------------
3737 // Function in need of a redesign (legacy mess)
3738 // - RenderColorRectWithAlphaCheckerboard()
3739 //-----------------------------------------------------------------------------
3740
3741 // 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)3742 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
3743 {
3744 const float h = draw_list->_Data->FontSize * 1.00f;
3745 float r = h * 0.40f * scale;
3746 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
3747
3748 ImVec2 a, b, c;
3749 switch (dir)
3750 {
3751 case ImGuiDir_Up:
3752 case ImGuiDir_Down:
3753 if (dir == ImGuiDir_Up) r = -r;
3754 a = ImVec2(+0.000f, +0.750f) * r;
3755 b = ImVec2(-0.866f, -0.750f) * r;
3756 c = ImVec2(+0.866f, -0.750f) * r;
3757 break;
3758 case ImGuiDir_Left:
3759 case ImGuiDir_Right:
3760 if (dir == ImGuiDir_Left) r = -r;
3761 a = ImVec2(+0.750f, +0.000f) * r;
3762 b = ImVec2(-0.750f, +0.866f) * r;
3763 c = ImVec2(-0.750f, -0.866f) * r;
3764 break;
3765 case ImGuiDir_None:
3766 case ImGuiDir_COUNT:
3767 IM_ASSERT(0);
3768 break;
3769 }
3770 draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
3771 }
3772
RenderBullet(ImDrawList * draw_list,ImVec2 pos,ImU32 col)3773 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
3774 {
3775 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
3776 }
3777
RenderCheckMark(ImDrawList * draw_list,ImVec2 pos,ImU32 col,float sz)3778 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
3779 {
3780 float thickness = ImMax(sz / 5.0f, 1.0f);
3781 sz -= thickness * 0.5f;
3782 pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
3783
3784 float third = sz / 3.0f;
3785 float bx = pos.x + third;
3786 float by = pos.y + sz - third * 0.5f;
3787 draw_list->PathLineTo(ImVec2(bx - third, by - third));
3788 draw_list->PathLineTo(ImVec2(bx, by));
3789 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
3790 draw_list->PathStroke(col, 0, thickness);
3791 }
3792
RenderMouseCursor(ImDrawList * draw_list,ImVec2 pos,float scale,ImGuiMouseCursor mouse_cursor,ImU32 col_fill,ImU32 col_border,ImU32 col_shadow)3793 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
3794 {
3795 if (mouse_cursor == ImGuiMouseCursor_None)
3796 return;
3797 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
3798
3799 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
3800 ImVec2 offset, size, uv[4];
3801 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
3802 {
3803 pos -= offset;
3804 ImTextureID tex_id = font_atlas->TexID;
3805 draw_list->PushTextureID(tex_id);
3806 draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
3807 draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
3808 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
3809 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
3810 draw_list->PopTextureID();
3811 }
3812 }
3813
3814 // 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)3815 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
3816 {
3817 switch (direction)
3818 {
3819 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;
3820 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;
3821 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;
3822 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;
3823 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
3824 }
3825 }
3826
ImAcos01(float x)3827 static inline float ImAcos01(float x)
3828 {
3829 if (x <= 0.0f) return IM_PI * 0.5f;
3830 if (x >= 1.0f) return 0.0f;
3831 return ImAcos(x);
3832 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
3833 }
3834
3835 // 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)3836 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
3837 {
3838 if (x_end_norm == x_start_norm)
3839 return;
3840 if (x_start_norm > x_end_norm)
3841 ImSwap(x_start_norm, x_end_norm);
3842
3843 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
3844 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
3845 if (rounding == 0.0f)
3846 {
3847 draw_list->AddRectFilled(p0, p1, col, 0.0f);
3848 return;
3849 }
3850
3851 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
3852 const float inv_rounding = 1.0f / rounding;
3853 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
3854 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
3855 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
3856 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
3857 if (arc0_b == arc0_e)
3858 {
3859 draw_list->PathLineTo(ImVec2(x0, p1.y));
3860 draw_list->PathLineTo(ImVec2(x0, p0.y));
3861 }
3862 else if (arc0_b == 0.0f && arc0_e == half_pi)
3863 {
3864 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
3865 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
3866 }
3867 else
3868 {
3869 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
3870 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
3871 }
3872 if (p1.x > rect.Min.x + rounding)
3873 {
3874 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
3875 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
3876 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
3877 if (arc1_b == arc1_e)
3878 {
3879 draw_list->PathLineTo(ImVec2(x1, p0.y));
3880 draw_list->PathLineTo(ImVec2(x1, p1.y));
3881 }
3882 else if (arc1_b == 0.0f && arc1_e == half_pi)
3883 {
3884 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
3885 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
3886 }
3887 else
3888 {
3889 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
3890 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
3891 }
3892 }
3893 draw_list->PathFillConvex(col);
3894 }
3895
RenderRectFilledWithHole(ImDrawList * draw_list,ImRect outer,ImRect inner,ImU32 col,float rounding)3896 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
3897 {
3898 const bool fill_L = (inner.Min.x > outer.Min.x);
3899 const bool fill_R = (inner.Max.x < outer.Max.x);
3900 const bool fill_U = (inner.Min.y > outer.Min.y);
3901 const bool fill_D = (inner.Max.y < outer.Max.y);
3902 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));
3903 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));
3904 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));
3905 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));
3906 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);
3907 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);
3908 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);
3909 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);
3910 }
3911
3912 // Helper for ColorPicker4()
3913 // 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.
3914 // 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.
3915 // 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)3916 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
3917 {
3918 if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
3919 flags = ImDrawFlags_RoundCornersDefault_;
3920 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
3921 {
3922 ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
3923 ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
3924 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags);
3925
3926 int yi = 0;
3927 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
3928 {
3929 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
3930 if (y2 <= y1)
3931 continue;
3932 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
3933 {
3934 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
3935 if (x2 <= x1)
3936 continue;
3937 ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
3938 if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
3939 if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
3940
3941 // Combine flags
3942 cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
3943 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags);
3944 }
3945 }
3946 }
3947 else
3948 {
3949 draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
3950 }
3951 }
3952
3953 //-----------------------------------------------------------------------------
3954 // [SECTION] Decompression code
3955 //-----------------------------------------------------------------------------
3956 // Compressed with stb_compress() then converted to a C array and encoded as base85.
3957 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
3958 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3959 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
3960 //-----------------------------------------------------------------------------
3961
stb_decompress_length(const unsigned char * input)3962 static unsigned int stb_decompress_length(const unsigned char *input)
3963 {
3964 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
3965 }
3966
3967 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
3968 static const unsigned char *stb__barrier_in_b;
3969 static unsigned char *stb__dout;
stb__match(const unsigned char * data,unsigned int length)3970 static void stb__match(const unsigned char *data, unsigned int length)
3971 {
3972 // INVERSE of memmove... write each byte before copying the next...
3973 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3974 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3975 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
3976 while (length--) *stb__dout++ = *data++;
3977 }
3978
stb__lit(const unsigned char * data,unsigned int length)3979 static void stb__lit(const unsigned char *data, unsigned int length)
3980 {
3981 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3982 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3983 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
3984 memcpy(stb__dout, data, length);
3985 stb__dout += length;
3986 }
3987
3988 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
3989 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
3990 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
3991
stb_decompress_token(const unsigned char * i)3992 static const unsigned char *stb_decompress_token(const unsigned char *i)
3993 {
3994 if (*i >= 0x20) { // use fewer if's for cases that expand small
3995 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
3996 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
3997 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
3998 } else { // more ifs for cases that expand large, since overhead is amortized
3999 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
4000 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
4001 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
4002 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
4003 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
4004 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
4005 }
4006 return i;
4007 }
4008
stb_adler32(unsigned int adler32,unsigned char * buffer,unsigned int buflen)4009 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
4010 {
4011 const unsigned long ADLER_MOD = 65521;
4012 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
4013 unsigned long blocklen = buflen % 5552;
4014
4015 unsigned long i;
4016 while (buflen) {
4017 for (i=0; i + 7 < blocklen; i += 8) {
4018 s1 += buffer[0], s2 += s1;
4019 s1 += buffer[1], s2 += s1;
4020 s1 += buffer[2], s2 += s1;
4021 s1 += buffer[3], s2 += s1;
4022 s1 += buffer[4], s2 += s1;
4023 s1 += buffer[5], s2 += s1;
4024 s1 += buffer[6], s2 += s1;
4025 s1 += buffer[7], s2 += s1;
4026
4027 buffer += 8;
4028 }
4029
4030 for (; i < blocklen; ++i)
4031 s1 += *buffer++, s2 += s1;
4032
4033 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
4034 buflen -= blocklen;
4035 blocklen = 5552;
4036 }
4037 return (unsigned int)(s2 << 16) + (unsigned int)s1;
4038 }
4039
stb_decompress(unsigned char * output,const unsigned char * i,unsigned int)4040 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
4041 {
4042 if (stb__in4(0) != 0x57bC0000) return 0;
4043 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
4044 const unsigned int olen = stb_decompress_length(i);
4045 stb__barrier_in_b = i;
4046 stb__barrier_out_e = output + olen;
4047 stb__barrier_out_b = output;
4048 i += 16;
4049
4050 stb__dout = output;
4051 for (;;) {
4052 const unsigned char *old_i = i;
4053 i = stb_decompress_token(i);
4054 if (i == old_i) {
4055 if (*i == 0x05 && i[1] == 0xfa) {
4056 IM_ASSERT(stb__dout == output + olen);
4057 if (stb__dout != output + olen) return 0;
4058 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
4059 return 0;
4060 return olen;
4061 } else {
4062 IM_ASSERT(0); /* NOTREACHED */
4063 return 0;
4064 }
4065 }
4066 IM_ASSERT(stb__dout <= output + olen);
4067 if (stb__dout > output + olen)
4068 return 0;
4069 }
4070 }
4071
4072 //-----------------------------------------------------------------------------
4073 // [SECTION] Default font data (ProggyClean.ttf)
4074 //-----------------------------------------------------------------------------
4075 // ProggyClean.ttf
4076 // Copyright (c) 2004, 2005 Tristan Grimmer
4077 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
4078 // Download and more information at http://upperbounds.net
4079 //-----------------------------------------------------------------------------
4080 // File: 'ProggyClean.ttf' (41208 bytes)
4081 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
4082 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
4083 //-----------------------------------------------------------------------------
4084 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
4085 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
4086 "2*>]b(MC;$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#"
4087 "`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"
4088 "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"
4089 "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"
4090 "*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)"
4091 "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"
4092 "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."
4093 "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"
4094 "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(,)"
4095 "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#"
4096 "'/###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"
4097 "_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"
4098 "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/"
4099 "/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"
4100 "%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&#"
4101 "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)("
4102 "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"
4103 "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"
4104 "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^-"
4105 "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-"
4106 "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"
4107 "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%"
4108 "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]"
4109 "%(?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"
4110 "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:"
4111 "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("
4112 "$/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<"
4113 "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'?"
4114 "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/;"
4115 ")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"
4116 "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("
4117 "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"
4118 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTGT5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
4119 "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<-"
4120 "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"
4121 "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"
4122 ".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@@"
4123 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
4124 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
4125 "@-W$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&#"
4126 "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#"
4127 "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"
4128 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoFDoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
4129 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
4130 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
4131 ":k$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+"
4132 "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*"
4133 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
4134 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
4135 "7aQC[K8d-(v6GI$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"
4136 "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"
4137 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
4138 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
4139 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
4140 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
4141 "^V'9;jY@;)br#q^YQpx:X#Te$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:"
4142 "+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%"
4143 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
4144 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
4145 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
4146 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
4147 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
4148 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
4149 "+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"
4150 "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"
4151 "?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"
4152 "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"
4153 ">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-$.QN'>"
4154 "[%$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"
4155 "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#"
4156 "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$"
4157 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
4158 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
4159 "1*c-(aY168o<`JsSbk-,1N;$>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"
4160 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
4161 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
4162 ";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&>"
4163 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
4164 "d<F&#*;G##.GY##2Sl##6`($#: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"
4165 "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$C#+E6C#"
4166 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
4167 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
4168 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
4169 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
4170 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
4171
GetDefaultCompressedFontDataTTFBase85()4172 static const char* GetDefaultCompressedFontDataTTFBase85()
4173 {
4174 return proggy_clean_ttf_compressed_data_base85;
4175 }
4176
DecompressCompressedBase85Data(const char * compressed_data_base85)4177 char* ImFontAtlas::DecompressCompressedBase85Data(const char* compressed_data_base85)
4178 {
4179 int compressed_data_size = (((int)strlen(compressed_data_base85) + 4) / 5) * 4;
4180 void* compressed_data = IM_ALLOC((size_t)compressed_data_size);
4181 Decode85((const unsigned char*)compressed_data_base85, (unsigned char*)compressed_data);
4182
4183 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_data);
4184 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
4185 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_data, (unsigned int)compressed_data_size);
4186 IM_FREE(compressed_data);
4187 return (char*)buf_decompressed_data;
4188 }
4189
4190 #endif // #ifndef IMGUI_DISABLE
4191