1 // dear imgui, v1.80
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 #include "imgui_internal.h"
36
37 #include <stdio.h> // vsnprintf, sscanf, printf
38 #if !defined(alloca)
39 #if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
40 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
41 #elif defined(_WIN32)
42 #include <malloc.h> // alloca
43 #if !defined(alloca)
44 #define alloca _alloca // for clang with MS Codegen
45 #endif
46 #else
47 #include <stdlib.h> // alloca
48 #endif
49 #endif
50
51 // Visual Studio warnings
52 #ifdef _MSC_VER
53 #pragma warning (disable: 4127) // condition expression is constant
54 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
55 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
56 #endif
57
58 // Clang/GCC warnings with -Weverything
59 #if defined(__clang__)
60 #if __has_warning("-Wunknown-warning-option")
61 #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!
62 #endif
63 #if __has_warning("-Walloca")
64 #pragma clang diagnostic ignored "-Walloca" // warning: use of function '__builtin_alloca' is discouraged
65 #endif
66 #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
67 #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
68 #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
69 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
70 #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
71 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
72 #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
73 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
74 #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.
75 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
76 #elif defined(__GNUC__)
77 #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
78 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
79 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
80 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
81 #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
82 #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
83 #endif
84
85 //-------------------------------------------------------------------------
86 // [SECTION] STB libraries implementation
87 //-------------------------------------------------------------------------
88
89 // Compile time options:
90 //#define IMGUI_STB_NAMESPACE ImStb
91 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
92 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
93 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
94 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
95
96 #ifdef IMGUI_STB_NAMESPACE
97 namespace IMGUI_STB_NAMESPACE
98 {
99 #endif
100
101 #ifdef _MSC_VER
102 #pragma warning (push)
103 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
104 #endif
105
106 #if defined(__clang__)
107 #pragma clang diagnostic push
108 #pragma clang diagnostic ignored "-Wunused-function"
109 #pragma clang diagnostic ignored "-Wmissing-prototypes"
110 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
111 #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
112 #endif
113
114 #if defined(__GNUC__)
115 #pragma GCC diagnostic push
116 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
117 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
118 #endif
119
120 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
121 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
122 #define STBRP_STATIC
123 #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
124 #define STBRP_SORT ImQsort
125 #define STB_RECT_PACK_IMPLEMENTATION
126 #endif
127 #ifdef IMGUI_STB_RECT_PACK_FILENAME
128 #include IMGUI_STB_RECT_PACK_FILENAME
129 #else
130 #include "imstb_rectpack.h"
131 #endif
132 #endif
133
134 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
135 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
136 #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
137 #define STBTT_free(x,u) ((void)(u), IM_FREE(x))
138 #define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
139 #define STBTT_fmod(x,y) ImFmod(x,y)
140 #define STBTT_sqrt(x) ImSqrt(x)
141 #define STBTT_pow(x,y) ImPow(x,y)
142 #define STBTT_fabs(x) ImFabs(x)
143 #define STBTT_ifloor(x) ((int)ImFloorStd(x))
144 #define STBTT_iceil(x) ((int)ImCeil(x))
145 #define STBTT_STATIC
146 #define STB_TRUETYPE_IMPLEMENTATION
147 #else
148 #define STBTT_DEF extern
149 #endif
150 #ifdef IMGUI_STB_TRUETYPE_FILENAME
151 #include IMGUI_STB_TRUETYPE_FILENAME
152 #else
153 #include "imstb_truetype.h"
154 #endif
155 #endif
156
157 #if defined(__GNUC__)
158 #pragma GCC diagnostic pop
159 #endif
160
161 #if defined(__clang__)
162 #pragma clang diagnostic pop
163 #endif
164
165 #if defined(_MSC_VER)
166 #pragma warning (pop)
167 #endif
168
169 #ifdef IMGUI_STB_NAMESPACE
170 } // namespace ImStb
171 using namespace IMGUI_STB_NAMESPACE;
172 #endif
173
174 //-----------------------------------------------------------------------------
175 // [SECTION] Style functions
176 //-----------------------------------------------------------------------------
177
StyleColorsDark(ImGuiStyle * dst)178 void ImGui::StyleColorsDark(ImGuiStyle* dst)
179 {
180 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
181 ImVec4* colors = style->Colors;
182
183 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
184 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
185 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
186 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
187 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
188 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
189 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
190 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
191 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
192 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
193 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
194 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
195 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
196 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
197 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
198 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
199 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
200 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
201 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
202 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
203 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
204 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
205 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
206 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
207 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
208 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
209 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
210 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
211 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
212 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
213 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
214 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
215 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
216 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
217 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
218 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
219 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
220 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
221 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_HeaderActive] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
222 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
223 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
224 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
225 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
226 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
227 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
228 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
229 colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
230 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
231 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
232 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
233 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
234 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
235 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
236 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
237 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
238 }
239
StyleColorsClassic(ImGuiStyle * dst)240 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
241 {
242 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
243 ImVec4* colors = style->Colors;
244
245 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
246 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
247 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
248 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
249 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
250 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
251 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
252 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
253 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
254 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
255 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
256 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
257 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
258 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
259 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
260 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
261 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
262 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
263 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
264 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
265 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
266 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
267 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
268 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
269 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
270 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
271 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
272 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
273 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
274 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
275 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
276 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
277 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
278 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
279 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
280 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
281 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
282 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
283 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
284 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
285 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
286 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
287 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
288 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
289 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
290 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
291 colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
292 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
293 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
294 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
295 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
296 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
297 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
298 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
299 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
300 }
301
302 // Those light colors are better suited with a thicker font than the default one + FrameBorder
StyleColorsLight(ImGuiStyle * dst)303 void ImGui::StyleColorsLight(ImGuiStyle* dst)
304 {
305 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
306 ImVec4* colors = style->Colors;
307
308 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
309 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
310 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
311 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
312 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
313 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
314 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
315 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
316 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
317 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
318 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
319 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
320 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
321 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
322 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
323 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
324 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
325 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
326 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
327 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
328 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
329 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
330 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
331 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
332 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
333 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
334 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
335 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
336 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
337 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
338 colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
339 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
340 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
341 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
342 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
343 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
344 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
345 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
346 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
347 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
348 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
349 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
350 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
351 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
352 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
353 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
354 colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
355 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
356 colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
357 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
358 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
359 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
360 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
361 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
362 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
363 }
364
365 //-----------------------------------------------------------------------------
366 // [SECTION] ImDrawList
367 //-----------------------------------------------------------------------------
368
ImDrawListSharedData()369 ImDrawListSharedData::ImDrawListSharedData()
370 {
371 memset(this, 0, sizeof(*this));
372 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
373 {
374 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
375 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
376 }
377 }
378
SetCircleSegmentMaxError(float max_error)379 void ImDrawListSharedData::SetCircleSegmentMaxError(float max_error)
380 {
381 if (CircleSegmentMaxError == max_error)
382 return;
383 CircleSegmentMaxError = max_error;
384 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
385 {
386 const float radius = i + 1.0f;
387 const int segment_count = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError);
388 CircleSegmentCounts[i] = (ImU8)ImMin(segment_count, 255);
389 }
390 }
391
392 // Initialize before use in a new frame. We always have a command ready in the buffer.
_ResetForNewFrame()393 void ImDrawList::_ResetForNewFrame()
394 {
395 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
396 // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
397 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
398 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
399 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
400
401 CmdBuffer.resize(0);
402 IdxBuffer.resize(0);
403 VtxBuffer.resize(0);
404 Flags = _Data->InitialFlags;
405 memset(&_CmdHeader, 0, sizeof(_CmdHeader));
406 _VtxCurrentIdx = 0;
407 _VtxWritePtr = NULL;
408 _IdxWritePtr = NULL;
409 _ClipRectStack.resize(0);
410 _TextureIdStack.resize(0);
411 _Path.resize(0);
412 _Splitter.Clear();
413 CmdBuffer.push_back(ImDrawCmd());
414 _FringeScale = 1.0f;
415 }
416
_ClearFreeMemory()417 void ImDrawList::_ClearFreeMemory()
418 {
419 CmdBuffer.clear();
420 IdxBuffer.clear();
421 VtxBuffer.clear();
422 Flags = ImDrawListFlags_None;
423 _VtxCurrentIdx = 0;
424 _VtxWritePtr = NULL;
425 _IdxWritePtr = NULL;
426 _ClipRectStack.clear();
427 _TextureIdStack.clear();
428 _Path.clear();
429 _Splitter.ClearFreeMemory();
430 }
431
CloneOutput() const432 ImDrawList* ImDrawList::CloneOutput() const
433 {
434 ImDrawList* dst = IM_NEW(ImDrawList(_Data));
435 dst->CmdBuffer = CmdBuffer;
436 dst->IdxBuffer = IdxBuffer;
437 dst->VtxBuffer = VtxBuffer;
438 dst->Flags = Flags;
439 return dst;
440 }
441
AddDrawCmd()442 void ImDrawList::AddDrawCmd()
443 {
444 ImDrawCmd draw_cmd;
445 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
446 draw_cmd.TextureId = _CmdHeader.TextureId;
447 draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
448 draw_cmd.IdxOffset = IdxBuffer.Size;
449
450 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
451 CmdBuffer.push_back(draw_cmd);
452 }
453
454 // Pop trailing draw command (used before merging or presenting to user)
455 // 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()456 void ImDrawList::_PopUnusedDrawCmd()
457 {
458 if (CmdBuffer.Size == 0)
459 return;
460 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
461 if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
462 CmdBuffer.pop_back();
463 }
464
AddCallback(ImDrawCallback callback,void * callback_data)465 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
466 {
467 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
468 IM_ASSERT(curr_cmd->UserCallback == NULL);
469 if (curr_cmd->ElemCount != 0)
470 {
471 AddDrawCmd();
472 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
473 }
474 curr_cmd->UserCallback = callback;
475 curr_cmd->UserCallbackData = callback_data;
476
477 AddDrawCmd(); // Force a new command after us (see comment below)
478 }
479
480 // Compare ClipRect, TextureId and VtxOffset with a single memcmp()
481 #define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
482 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
483 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
484
485 // 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.
486 // 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()487 void ImDrawList::_OnChangedClipRect()
488 {
489 // If current command is used with different settings we need to add a new command
490 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
491 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
492 {
493 AddDrawCmd();
494 return;
495 }
496 IM_ASSERT(curr_cmd->UserCallback == NULL);
497
498 // Try to merge with previous command if it matches, else use current command
499 ImDrawCmd* prev_cmd = curr_cmd - 1;
500 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
501 {
502 CmdBuffer.pop_back();
503 return;
504 }
505
506 curr_cmd->ClipRect = _CmdHeader.ClipRect;
507 }
508
_OnChangedTextureID()509 void ImDrawList::_OnChangedTextureID()
510 {
511 // If current command is used with different settings we need to add a new command
512 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
513 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
514 {
515 AddDrawCmd();
516 return;
517 }
518 IM_ASSERT(curr_cmd->UserCallback == NULL);
519
520 // Try to merge with previous command if it matches, else use current command
521 ImDrawCmd* prev_cmd = curr_cmd - 1;
522 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
523 {
524 CmdBuffer.pop_back();
525 return;
526 }
527
528 curr_cmd->TextureId = _CmdHeader.TextureId;
529 }
530
_OnChangedVtxOffset()531 void ImDrawList::_OnChangedVtxOffset()
532 {
533 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
534 _VtxCurrentIdx = 0;
535 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
536 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
537 if (curr_cmd->ElemCount != 0)
538 {
539 AddDrawCmd();
540 return;
541 }
542 IM_ASSERT(curr_cmd->UserCallback == NULL);
543 curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
544 }
545
546 // 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)547 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
548 {
549 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
550 if (intersect_with_current_clip_rect)
551 {
552 ImVec4 current = _CmdHeader.ClipRect;
553 if (cr.x < current.x) cr.x = current.x;
554 if (cr.y < current.y) cr.y = current.y;
555 if (cr.z > current.z) cr.z = current.z;
556 if (cr.w > current.w) cr.w = current.w;
557 }
558 cr.z = ImMax(cr.x, cr.z);
559 cr.w = ImMax(cr.y, cr.w);
560
561 _ClipRectStack.push_back(cr);
562 _CmdHeader.ClipRect = cr;
563 _OnChangedClipRect();
564 }
565
PushClipRectFullScreen()566 void ImDrawList::PushClipRectFullScreen()
567 {
568 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
569 }
570
PopClipRect()571 void ImDrawList::PopClipRect()
572 {
573 _ClipRectStack.pop_back();
574 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
575 _OnChangedClipRect();
576 }
577
PushTextureID(ImTextureID texture_id)578 void ImDrawList::PushTextureID(ImTextureID texture_id)
579 {
580 _TextureIdStack.push_back(texture_id);
581 _CmdHeader.TextureId = texture_id;
582 _OnChangedTextureID();
583 }
584
PopTextureID()585 void ImDrawList::PopTextureID()
586 {
587 _TextureIdStack.pop_back();
588 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
589 _OnChangedTextureID();
590 }
591
592 // Reserve space for a number of vertices and indices.
593 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
594 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
PrimReserve(int idx_count,int vtx_count)595 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
596 {
597 // Large mesh support (when enabled)
598 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
599 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
600 {
601 // FIXME: In theory we should be testing that vtx_count <64k here.
602 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
603 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
604 _CmdHeader.VtxOffset = VtxBuffer.Size;
605 _OnChangedVtxOffset();
606 }
607
608 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
609 draw_cmd->ElemCount += idx_count;
610
611 int vtx_buffer_old_size = VtxBuffer.Size;
612 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
613 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
614
615 int idx_buffer_old_size = IdxBuffer.Size;
616 IdxBuffer.resize(idx_buffer_old_size + idx_count);
617 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
618 }
619
620 // 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)621 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
622 {
623 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
624
625 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
626 draw_cmd->ElemCount -= idx_count;
627 VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
628 IdxBuffer.shrink(IdxBuffer.Size - idx_count);
629 }
630
631 // Fully unrolled with inline call to keep our debug builds decently fast.
PrimRect(const ImVec2 & a,const ImVec2 & c,ImU32 col)632 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
633 {
634 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
635 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
636 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
637 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
638 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
639 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
640 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
641 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
642 _VtxWritePtr += 4;
643 _VtxCurrentIdx += 4;
644 _IdxWritePtr += 6;
645 }
646
PrimRectUV(const ImVec2 & a,const ImVec2 & c,const ImVec2 & uv_a,const ImVec2 & uv_c,ImU32 col)647 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
648 {
649 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);
650 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
651 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
652 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
653 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
654 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
655 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
656 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
657 _VtxWritePtr += 4;
658 _VtxCurrentIdx += 4;
659 _IdxWritePtr += 6;
660 }
661
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)662 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)
663 {
664 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
665 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
666 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
667 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
668 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
669 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
670 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
671 _VtxWritePtr += 4;
672 _VtxCurrentIdx += 4;
673 _IdxWritePtr += 6;
674 }
675
676 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
677 // Those macros expects l-values.
678 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
679 #define IM_FIXNORMAL2F(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; } while (0)
680
681 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
682 // 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,bool closed,float thickness)683 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
684 {
685 if (points_count < 2)
686 return;
687
688 const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
689 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
690 const bool thick_line = (thickness > _FringeScale);
691
692 if (Flags & ImDrawListFlags_AntiAliasedLines)
693 {
694 // Anti-aliased stroke
695 const float AA_SIZE = _FringeScale;
696 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
697
698 // Thicknesses <1.0 should behave like thickness 1.0
699 thickness = ImMax(thickness, 1.0f);
700 const int integer_thickness = (int)thickness;
701 const float fractional_thickness = thickness - integer_thickness;
702
703 // Do we want to draw this line using a texture?
704 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
705 // - If AA_SIZE is not 1.0f we cannot use the texture path.
706 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
707
708 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
709 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
710
711 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
712 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
713 PrimReserve(idx_count, vtx_count);
714
715 // Temporary buffer
716 // 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
717 ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
718 ImVec2* temp_points = temp_normals + points_count;
719
720 // Calculate normals (tangents) for each line segment
721 for (int i1 = 0; i1 < count; i1++)
722 {
723 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
724 float dx = points[i2].x - points[i1].x;
725 float dy = points[i2].y - points[i1].y;
726 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
727 temp_normals[i1].x = dy;
728 temp_normals[i1].y = -dx;
729 }
730 if (!closed)
731 temp_normals[points_count - 1] = temp_normals[points_count - 2];
732
733 // 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
734 if (use_texture || !thick_line)
735 {
736 // [PATH 1] Texture-based lines (thick or non-thick)
737 // [PATH 2] Non texture-based lines (non-thick)
738
739 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
740 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
741 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
742 // - 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
743 // allow scaling geometry while preserving one-screen-pixel AA fringe).
744 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
745
746 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
747 if (!closed)
748 {
749 temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
750 temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
751 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
752 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
753 }
754
755 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
756 // 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)
757 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
758 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
759 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
760 {
761 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
762 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
763
764 // Average normals
765 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
766 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
767 IM_FIXNORMAL2F(dm_x, dm_y);
768 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
769 dm_y *= half_draw_size;
770
771 // Add temporary vertexes for the outer edges
772 ImVec2* out_vtx = &temp_points[i2 * 2];
773 out_vtx[0].x = points[i2].x + dm_x;
774 out_vtx[0].y = points[i2].y + dm_y;
775 out_vtx[1].x = points[i2].x - dm_x;
776 out_vtx[1].y = points[i2].y - dm_y;
777
778 if (use_texture)
779 {
780 // Add indices for two triangles
781 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
782 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
783 _IdxWritePtr += 6;
784 }
785 else
786 {
787 // Add indexes for four triangles
788 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
789 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
790 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
791 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
792 _IdxWritePtr += 12;
793 }
794
795 idx1 = idx2;
796 }
797
798 // Add vertexes for each point on the line
799 if (use_texture)
800 {
801 // If we're using textures we only need to emit the left/right edge vertices
802 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
803 /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
804 {
805 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
806 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
807 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
808 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
809 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
810 }*/
811 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
812 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
813 for (int i = 0; i < points_count; i++)
814 {
815 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
816 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
817 _VtxWritePtr += 2;
818 }
819 }
820 else
821 {
822 // If we're not using a texture, we need the center vertex as well
823 for (int i = 0; i < points_count; i++)
824 {
825 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
826 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
827 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
828 _VtxWritePtr += 3;
829 }
830 }
831 }
832 else
833 {
834 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
835 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
836
837 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
838 if (!closed)
839 {
840 const int points_last = points_count - 1;
841 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
842 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
843 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
844 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
845 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
846 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
847 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
848 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
849 }
850
851 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
852 // 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)
853 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
854 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
855 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
856 {
857 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
858 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
859
860 // Average normals
861 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
862 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
863 IM_FIXNORMAL2F(dm_x, dm_y);
864 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
865 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
866 float dm_in_x = dm_x * half_inner_thickness;
867 float dm_in_y = dm_y * half_inner_thickness;
868
869 // Add temporary vertices
870 ImVec2* out_vtx = &temp_points[i2 * 4];
871 out_vtx[0].x = points[i2].x + dm_out_x;
872 out_vtx[0].y = points[i2].y + dm_out_y;
873 out_vtx[1].x = points[i2].x + dm_in_x;
874 out_vtx[1].y = points[i2].y + dm_in_y;
875 out_vtx[2].x = points[i2].x - dm_in_x;
876 out_vtx[2].y = points[i2].y - dm_in_y;
877 out_vtx[3].x = points[i2].x - dm_out_x;
878 out_vtx[3].y = points[i2].y - dm_out_y;
879
880 // Add indexes
881 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
882 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
883 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
884 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
885 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
886 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
887 _IdxWritePtr += 18;
888
889 idx1 = idx2;
890 }
891
892 // Add vertices
893 for (int i = 0; i < points_count; i++)
894 {
895 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
896 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
897 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
898 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
899 _VtxWritePtr += 4;
900 }
901 }
902 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
903 }
904 else
905 {
906 // [PATH 4] Non texture-based, Non anti-aliased lines
907 const int idx_count = count * 6;
908 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
909 PrimReserve(idx_count, vtx_count);
910
911 for (int i1 = 0; i1 < count; i1++)
912 {
913 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
914 const ImVec2& p1 = points[i1];
915 const ImVec2& p2 = points[i2];
916
917 float dx = p2.x - p1.x;
918 float dy = p2.y - p1.y;
919 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
920 dx *= (thickness * 0.5f);
921 dy *= (thickness * 0.5f);
922
923 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
924 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
925 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
926 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
927 _VtxWritePtr += 4;
928
929 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
930 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
931 _IdxWritePtr += 6;
932 _VtxCurrentIdx += 4;
933 }
934 }
935 }
936
937 // 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)938 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
939 {
940 if (points_count < 3)
941 return;
942
943 const ImVec2 uv = _Data->TexUvWhitePixel;
944
945 if (Flags & ImDrawListFlags_AntiAliasedFill)
946 {
947 // Anti-aliased Fill
948 const float AA_SIZE = _FringeScale;
949 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
950 const int idx_count = (points_count - 2)*3 + points_count * 6;
951 const int vtx_count = (points_count * 2);
952 PrimReserve(idx_count, vtx_count);
953
954 // Add indexes for fill
955 unsigned int vtx_inner_idx = _VtxCurrentIdx;
956 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
957 for (int i = 2; i < points_count; i++)
958 {
959 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
960 _IdxWritePtr += 3;
961 }
962
963 // Compute normals
964 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
965 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
966 {
967 const ImVec2& p0 = points[i0];
968 const ImVec2& p1 = points[i1];
969 float dx = p1.x - p0.x;
970 float dy = p1.y - p0.y;
971 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
972 temp_normals[i0].x = dy;
973 temp_normals[i0].y = -dx;
974 }
975
976 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
977 {
978 // Average normals
979 const ImVec2& n0 = temp_normals[i0];
980 const ImVec2& n1 = temp_normals[i1];
981 float dm_x = (n0.x + n1.x) * 0.5f;
982 float dm_y = (n0.y + n1.y) * 0.5f;
983 IM_FIXNORMAL2F(dm_x, dm_y);
984 dm_x *= AA_SIZE * 0.5f;
985 dm_y *= AA_SIZE * 0.5f;
986
987 // Add vertices
988 _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
989 _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
990 _VtxWritePtr += 2;
991
992 // Add indexes for fringes
993 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
994 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
995 _IdxWritePtr += 6;
996 }
997 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
998 }
999 else
1000 {
1001 // Non Anti-aliased Fill
1002 const int idx_count = (points_count - 2)*3;
1003 const int vtx_count = points_count;
1004 PrimReserve(idx_count, vtx_count);
1005 for (int i = 0; i < vtx_count; i++)
1006 {
1007 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
1008 _VtxWritePtr++;
1009 }
1010 for (int i = 2; i < points_count; i++)
1011 {
1012 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
1013 _IdxWritePtr += 3;
1014 }
1015 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1016 }
1017 }
1018
PathArcToFast(const ImVec2 & center,float radius,int a_min_of_12,int a_max_of_12)1019 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1020 {
1021 if (radius == 0.0f || a_min_of_12 > a_max_of_12)
1022 {
1023 _Path.push_back(center);
1024 return;
1025 }
1026
1027 // For legacy reason the PathArcToFast() always takes angles where 2*PI is represented by 12,
1028 // but it is possible to set IM_DRAWLIST_ARCFAST_TESSELATION_MULTIPLIER to a higher value. This should compile to a no-op otherwise.
1029 #if IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER != 1
1030 a_min_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1031 a_max_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1032 #endif
1033
1034 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
1035 for (int a = a_min_of_12; a <= a_max_of_12; a++)
1036 {
1037 const ImVec2& c = _Data->ArcFastVtx[a % IM_ARRAYSIZE(_Data->ArcFastVtx)];
1038 _Path.push_back(ImVec2(center.x + c.x * radius, center.y + c.y * radius));
1039 }
1040 }
1041
PathArcTo(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1042 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1043 {
1044 if (radius == 0.0f)
1045 {
1046 _Path.push_back(center);
1047 return;
1048 }
1049
1050 // Note that we are adding a point at both a_min and a_max.
1051 // If you are trying to draw a full closed circle you don't want the overlapping points!
1052 _Path.reserve(_Path.Size + (num_segments + 1));
1053 for (int i = 0; i <= num_segments; i++)
1054 {
1055 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1056 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1057 }
1058 }
1059
ImBezierCubicCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,float t)1060 ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1061 {
1062 float u = 1.0f - t;
1063 float w1 = u * u * u;
1064 float w2 = 3 * u * u * t;
1065 float w3 = 3 * u * t * t;
1066 float w4 = t * t * t;
1067 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);
1068 }
1069
ImBezierQuadraticCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,float t)1070 ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
1071 {
1072 float u = 1.0f - t;
1073 float w1 = u * u;
1074 float w2 = 2 * u * t;
1075 float w3 = t * t;
1076 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
1077 }
1078
1079 // 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)1080 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)
1081 {
1082 float dx = x4 - x1;
1083 float dy = y4 - y1;
1084 float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
1085 float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
1086 d2 = (d2 >= 0) ? d2 : -d2;
1087 d3 = (d3 >= 0) ? d3 : -d3;
1088 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1089 {
1090 path->push_back(ImVec2(x4, y4));
1091 }
1092 else if (level < 10)
1093 {
1094 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1095 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1096 float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
1097 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1098 float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
1099 float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
1100 PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
1101 PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
1102 }
1103 }
1104
PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2> * path,float x1,float y1,float x2,float y2,float x3,float y3,float tess_tol,int level)1105 static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
1106 {
1107 float dx = x3 - x1, dy = y3 - y1;
1108 float det = (x2 - x3) * dy - (y2 - y3) * dx;
1109 if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
1110 {
1111 path->push_back(ImVec2(x3, y3));
1112 }
1113 else if (level < 10)
1114 {
1115 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
1116 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
1117 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
1118 PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
1119 PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
1120 }
1121 }
1122
PathBezierCubicCurveTo(const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,int num_segments)1123 void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1124 {
1125 ImVec2 p1 = _Path.back();
1126 if (num_segments == 0)
1127 {
1128 PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
1129 }
1130 else
1131 {
1132 float t_step = 1.0f / (float)num_segments;
1133 for (int i_step = 1; i_step <= num_segments; i_step++)
1134 _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
1135 }
1136 }
1137
PathBezierQuadraticCurveTo(const ImVec2 & p2,const ImVec2 & p3,int num_segments)1138 void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
1139 {
1140 ImVec2 p1 = _Path.back();
1141 if (num_segments == 0)
1142 {
1143 PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
1144 }
1145 else
1146 {
1147 float t_step = 1.0f / (float)num_segments;
1148 for (int i_step = 1; i_step <= num_segments; i_step++)
1149 _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
1150 }
1151 }
1152
PathRect(const ImVec2 & a,const ImVec2 & b,float rounding,ImDrawCornerFlags rounding_corners)1153 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawCornerFlags rounding_corners)
1154 {
1155 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((rounding_corners & ImDrawCornerFlags_Top) == ImDrawCornerFlags_Top) || ((rounding_corners & ImDrawCornerFlags_Bot) == ImDrawCornerFlags_Bot) ? 0.5f : 1.0f ) - 1.0f);
1156 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f ) - 1.0f);
1157
1158 if (rounding <= 0.0f || rounding_corners == 0)
1159 {
1160 PathLineTo(a);
1161 PathLineTo(ImVec2(b.x, a.y));
1162 PathLineTo(b);
1163 PathLineTo(ImVec2(a.x, b.y));
1164 }
1165 else
1166 {
1167 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1168 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1169 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1170 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1171 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1172 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1173 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1174 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1175 }
1176 }
1177
AddLine(const ImVec2 & p1,const ImVec2 & p2,ImU32 col,float thickness)1178 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1179 {
1180 if ((col & IM_COL32_A_MASK) == 0)
1181 return;
1182 PathLineTo(p1 + ImVec2(0.5f, 0.5f));
1183 PathLineTo(p2 + ImVec2(0.5f, 0.5f));
1184 PathStroke(col, false, thickness);
1185 }
1186
1187 // p_min = upper-left, p_max = lower-right
1188 // Note we don't render 1 pixels sized rectangles properly.
AddRect(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawCornerFlags rounding_corners,float thickness)1189 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners, float thickness)
1190 {
1191 if ((col & IM_COL32_A_MASK) == 0)
1192 return;
1193 if (Flags & ImDrawListFlags_AntiAliasedLines)
1194 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, rounding_corners);
1195 else
1196 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, rounding_corners); // Better looking lower-right corner and rounded non-AA shapes.
1197 PathStroke(col, true, thickness);
1198 }
1199
AddRectFilled(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawCornerFlags rounding_corners)1200 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
1201 {
1202 if ((col & IM_COL32_A_MASK) == 0)
1203 return;
1204 if (rounding > 0.0f)
1205 {
1206 PathRect(p_min, p_max, rounding, rounding_corners);
1207 PathFillConvex(col);
1208 }
1209 else
1210 {
1211 PrimReserve(6, 4);
1212 PrimRect(p_min, p_max, col);
1213 }
1214 }
1215
1216 // 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)1217 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)
1218 {
1219 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1220 return;
1221
1222 const ImVec2 uv = _Data->TexUvWhitePixel;
1223 PrimReserve(6, 4);
1224 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
1225 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
1226 PrimWriteVtx(p_min, uv, col_upr_left);
1227 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
1228 PrimWriteVtx(p_max, uv, col_bot_right);
1229 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
1230 }
1231
AddQuad(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness)1232 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1233 {
1234 if ((col & IM_COL32_A_MASK) == 0)
1235 return;
1236
1237 PathLineTo(p1);
1238 PathLineTo(p2);
1239 PathLineTo(p3);
1240 PathLineTo(p4);
1241 PathStroke(col, true, thickness);
1242 }
1243
AddQuadFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col)1244 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1245 {
1246 if ((col & IM_COL32_A_MASK) == 0)
1247 return;
1248
1249 PathLineTo(p1);
1250 PathLineTo(p2);
1251 PathLineTo(p3);
1252 PathLineTo(p4);
1253 PathFillConvex(col);
1254 }
1255
AddTriangle(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness)1256 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1257 {
1258 if ((col & IM_COL32_A_MASK) == 0)
1259 return;
1260
1261 PathLineTo(p1);
1262 PathLineTo(p2);
1263 PathLineTo(p3);
1264 PathStroke(col, true, thickness);
1265 }
1266
AddTriangleFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col)1267 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1268 {
1269 if ((col & IM_COL32_A_MASK) == 0)
1270 return;
1271
1272 PathLineTo(p1);
1273 PathLineTo(p2);
1274 PathLineTo(p3);
1275 PathFillConvex(col);
1276 }
1277
AddCircle(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1278 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1279 {
1280 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1281 return;
1282
1283 // Obtain segment count
1284 if (num_segments <= 0)
1285 {
1286 // Automatic segment count
1287 const int radius_idx = (int)radius - 1;
1288 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1289 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1290 else
1291 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1292 }
1293 else
1294 {
1295 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1296 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1297 }
1298
1299 // Because we are filling a closed shape we remove 1 from the count of segments/points
1300 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1301 if (num_segments == 12)
1302 PathArcToFast(center, radius - 0.5f, 0, 12 - 1);
1303 else
1304 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1305 PathStroke(col, true, thickness);
1306 }
1307
AddCircleFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1308 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1309 {
1310 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1311 return;
1312
1313 // Obtain segment count
1314 if (num_segments <= 0)
1315 {
1316 // Automatic segment count
1317 const int radius_idx = (int)radius - 1;
1318 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1319 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1320 else
1321 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1322 }
1323 else
1324 {
1325 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1326 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1327 }
1328
1329 // Because we are filling a closed shape we remove 1 from the count of segments/points
1330 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1331 if (num_segments == 12)
1332 PathArcToFast(center, radius, 0, 12 - 1);
1333 else
1334 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1335 PathFillConvex(col);
1336 }
1337
1338 // Guaranteed to honor 'num_segments'
AddNgon(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1339 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1340 {
1341 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1342 return;
1343
1344 // Because we are filling a closed shape we remove 1 from the count of segments/points
1345 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1346 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1347 PathStroke(col, true, thickness);
1348 }
1349
1350 // Guaranteed to honor 'num_segments'
AddNgonFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1351 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1352 {
1353 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1354 return;
1355
1356 // Because we are filling a closed shape we remove 1 from the count of segments/points
1357 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1358 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1359 PathFillConvex(col);
1360 }
1361
1362 // 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)1363 void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1364 {
1365 if ((col & IM_COL32_A_MASK) == 0)
1366 return;
1367
1368 PathLineTo(p1);
1369 PathBezierCubicCurveTo(p2, p3, p4, num_segments);
1370 PathStroke(col, false, thickness);
1371 }
1372
1373 // Quadratic Bezier takes 3 controls points
AddBezierQuadratic(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness,int num_segments)1374 void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
1375 {
1376 if ((col & IM_COL32_A_MASK) == 0)
1377 return;
1378
1379 PathLineTo(p1);
1380 PathBezierQuadraticCurveTo(p2, p3, num_segments);
1381 PathStroke(col, false, thickness);
1382 }
1383
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)1384 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)
1385 {
1386 if ((col & IM_COL32_A_MASK) == 0)
1387 return;
1388
1389 if (text_end == NULL)
1390 text_end = text_begin + strlen(text_begin);
1391 if (text_begin == text_end)
1392 return;
1393
1394 // Pull default font/size from the shared ImDrawListSharedData instance
1395 if (font == NULL)
1396 font = _Data->Font;
1397 if (font_size == 0.0f)
1398 font_size = _Data->FontSize;
1399
1400 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1401
1402 ImVec4 clip_rect = _CmdHeader.ClipRect;
1403 if (cpu_fine_clip_rect)
1404 {
1405 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1406 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1407 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1408 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1409 }
1410 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1411 }
1412
AddText(const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end)1413 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1414 {
1415 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1416 }
1417
AddImage(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col)1418 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)
1419 {
1420 if ((col & IM_COL32_A_MASK) == 0)
1421 return;
1422
1423 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1424 if (push_texture_id)
1425 PushTextureID(user_texture_id);
1426
1427 PrimReserve(6, 4);
1428 PrimRectUV(p_min, p_max, uv_min, uv_max, col);
1429
1430 if (push_texture_id)
1431 PopTextureID();
1432 }
1433
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)1434 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)
1435 {
1436 if ((col & IM_COL32_A_MASK) == 0)
1437 return;
1438
1439 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1440 if (push_texture_id)
1441 PushTextureID(user_texture_id);
1442
1443 PrimReserve(6, 4);
1444 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
1445
1446 if (push_texture_id)
1447 PopTextureID();
1448 }
1449
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,ImDrawCornerFlags rounding_corners)1450 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, ImDrawCornerFlags rounding_corners)
1451 {
1452 if ((col & IM_COL32_A_MASK) == 0)
1453 return;
1454
1455 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1456 {
1457 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
1458 return;
1459 }
1460
1461 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1462 if (push_texture_id)
1463 PushTextureID(user_texture_id);
1464
1465 int vert_start_idx = VtxBuffer.Size;
1466 PathRect(p_min, p_max, rounding, rounding_corners);
1467 PathFillConvex(col);
1468 int vert_end_idx = VtxBuffer.Size;
1469 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
1470
1471 if (push_texture_id)
1472 PopTextureID();
1473 }
1474
1475
1476 //-----------------------------------------------------------------------------
1477 // [SECTION] ImDrawListSplitter
1478 //-----------------------------------------------------------------------------
1479 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
1480 //-----------------------------------------------------------------------------
1481
ClearFreeMemory()1482 void ImDrawListSplitter::ClearFreeMemory()
1483 {
1484 for (int i = 0; i < _Channels.Size; i++)
1485 {
1486 if (i == _Current)
1487 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
1488 _Channels[i]._CmdBuffer.clear();
1489 _Channels[i]._IdxBuffer.clear();
1490 }
1491 _Current = 0;
1492 _Count = 1;
1493 _Channels.clear();
1494 }
1495
Split(ImDrawList * draw_list,int channels_count)1496 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
1497 {
1498 IM_UNUSED(draw_list);
1499 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
1500 int old_channels_count = _Channels.Size;
1501 if (old_channels_count < channels_count)
1502 {
1503 _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
1504 _Channels.resize(channels_count);
1505 }
1506 _Count = channels_count;
1507
1508 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
1509 // 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.
1510 // 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
1511 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
1512 for (int i = 1; i < channels_count; i++)
1513 {
1514 if (i >= old_channels_count)
1515 {
1516 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
1517 }
1518 else
1519 {
1520 _Channels[i]._CmdBuffer.resize(0);
1521 _Channels[i]._IdxBuffer.resize(0);
1522 }
1523 }
1524 }
1525
Merge(ImDrawList * draw_list)1526 void ImDrawListSplitter::Merge(ImDrawList* draw_list)
1527 {
1528 // 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.
1529 if (_Count <= 1)
1530 return;
1531
1532 SetCurrentChannel(draw_list, 0);
1533 draw_list->_PopUnusedDrawCmd();
1534
1535 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
1536 int new_cmd_buffer_count = 0;
1537 int new_idx_buffer_count = 0;
1538 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
1539 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
1540 for (int i = 1; i < _Count; i++)
1541 {
1542 ImDrawChannel& ch = _Channels[i];
1543
1544 // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
1545 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
1546 ch._CmdBuffer.pop_back();
1547
1548 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
1549 {
1550 ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
1551 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
1552 {
1553 // Merge previous channel last draw command with current channel first draw command if matching.
1554 last_cmd->ElemCount += next_cmd->ElemCount;
1555 idx_offset += next_cmd->ElemCount;
1556 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
1557 }
1558 }
1559 if (ch._CmdBuffer.Size > 0)
1560 last_cmd = &ch._CmdBuffer.back();
1561 new_cmd_buffer_count += ch._CmdBuffer.Size;
1562 new_idx_buffer_count += ch._IdxBuffer.Size;
1563 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
1564 {
1565 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
1566 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
1567 }
1568 }
1569 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
1570 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
1571
1572 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
1573 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
1574 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
1575 for (int i = 1; i < _Count; i++)
1576 {
1577 ImDrawChannel& ch = _Channels[i];
1578 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
1579 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
1580 }
1581 draw_list->_IdxWritePtr = idx_write;
1582
1583 // Ensure there's always a non-callback draw command trailing the command-buffer
1584 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
1585 draw_list->AddDrawCmd();
1586
1587 // If current command is used with different settings we need to add a new command
1588 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1589 if (curr_cmd->ElemCount == 0)
1590 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1591 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1592 draw_list->AddDrawCmd();
1593
1594 _Count = 1;
1595 }
1596
SetCurrentChannel(ImDrawList * draw_list,int idx)1597 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
1598 {
1599 IM_ASSERT(idx >= 0 && idx < _Count);
1600 if (_Current == idx)
1601 return;
1602
1603 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
1604 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
1605 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
1606 _Current = idx;
1607 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
1608 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
1609 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
1610
1611 // If current command is used with different settings we need to add a new command
1612 ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1613 if (curr_cmd == NULL)
1614 draw_list->AddDrawCmd();
1615 else if (curr_cmd->ElemCount == 0)
1616 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1617 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1618 draw_list->AddDrawCmd();
1619 }
1620
1621 //-----------------------------------------------------------------------------
1622 // [SECTION] ImDrawData
1623 //-----------------------------------------------------------------------------
1624
1625 // 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()1626 void ImDrawData::DeIndexAllBuffers()
1627 {
1628 ImVector<ImDrawVert> new_vtx_buffer;
1629 TotalVtxCount = TotalIdxCount = 0;
1630 for (int i = 0; i < CmdListsCount; i++)
1631 {
1632 ImDrawList* cmd_list = CmdLists[i];
1633 if (cmd_list->IdxBuffer.empty())
1634 continue;
1635 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1636 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1637 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1638 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1639 cmd_list->IdxBuffer.resize(0);
1640 TotalVtxCount += cmd_list->VtxBuffer.Size;
1641 }
1642 }
1643
1644 // Helper to scale the ClipRect field of each ImDrawCmd.
1645 // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1646 // or if there is a difference between your window resolution and framebuffer resolution.
ScaleClipRects(const ImVec2 & fb_scale)1647 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1648 {
1649 for (int i = 0; i < CmdListsCount; i++)
1650 {
1651 ImDrawList* cmd_list = CmdLists[i];
1652 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1653 {
1654 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1655 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);
1656 }
1657 }
1658 }
1659
1660 //-----------------------------------------------------------------------------
1661 // [SECTION] Helpers ShadeVertsXXX functions
1662 //-----------------------------------------------------------------------------
1663
1664 // 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)1665 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1666 {
1667 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1668 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1669 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1670 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1671 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
1672 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
1673 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
1674 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
1675 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
1676 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
1677 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1678 {
1679 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1680 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1681 int r = (int)(col0_r + col_delta_r * t);
1682 int g = (int)(col0_g + col_delta_g * t);
1683 int b = (int)(col0_b + col_delta_b * t);
1684 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1685 }
1686 }
1687
1688 // 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)1689 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)
1690 {
1691 const ImVec2 size = b - a;
1692 const ImVec2 uv_size = uv_b - uv_a;
1693 const ImVec2 scale = ImVec2(
1694 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1695 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1696
1697 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1698 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1699 if (clamp)
1700 {
1701 const ImVec2 min = ImMin(uv_a, uv_b);
1702 const ImVec2 max = ImMax(uv_a, uv_b);
1703 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1704 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1705 }
1706 else
1707 {
1708 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1709 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1710 }
1711 }
1712
1713 //-----------------------------------------------------------------------------
1714 // [SECTION] ImFontConfig
1715 //-----------------------------------------------------------------------------
1716
ImFontConfig()1717 ImFontConfig::ImFontConfig()
1718 {
1719 FontData = NULL;
1720 FontDataSize = 0;
1721 FontDataOwnedByAtlas = true;
1722 FontNo = 0;
1723 SizePixels = 0.0f;
1724 OversampleH = 3; // FIXME: 2 may be a better default?
1725 OversampleV = 1;
1726 PixelSnapH = false;
1727 GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1728 GlyphOffset = ImVec2(0.0f, 0.0f);
1729 GlyphRanges = NULL;
1730 GlyphMinAdvanceX = 0.0f;
1731 GlyphMaxAdvanceX = FLT_MAX;
1732 MergeMode = false;
1733 RasterizerFlags = 0x00;
1734 RasterizerMultiply = 1.0f;
1735 EllipsisChar = (ImWchar)-1;
1736 memset(Name, 0, sizeof(Name));
1737 DstFont = NULL;
1738 }
1739
1740 //-----------------------------------------------------------------------------
1741 // [SECTION] ImFontAtlas
1742 //-----------------------------------------------------------------------------
1743
1744 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1745 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
1746 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
1747 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1748 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1749 {
1750 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1751 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1752 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1753 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1754 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1755 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1756 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1757 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1758 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1759 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1760 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1761 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1762 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1763 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1764 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1765 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1766 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1767 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1768 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1769 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1770 " X..X - X...X - X...X - X..X X..X - - X........X "
1771 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1772 "------------ - X - X -X.....................X- ------------------"
1773 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1774 " - X..X X..X - "
1775 " - X.X X.X - "
1776 " - XX XX - "
1777 };
1778
1779 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1780 {
1781 // Pos ........ Size ......... Offset ......
1782 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1783 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1784 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1785 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1786 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1787 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1788 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1789 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1790 };
1791
ImFontAtlas()1792 ImFontAtlas::ImFontAtlas()
1793 {
1794 Locked = false;
1795 Flags = ImFontAtlasFlags_None;
1796 TexID = (ImTextureID)NULL;
1797 TexDesiredWidth = 0;
1798 TexGlyphPadding = 1;
1799
1800 TexPixelsAlpha8 = NULL;
1801 TexPixelsRGBA32 = NULL;
1802 TexWidth = TexHeight = 0;
1803 TexUvScale = ImVec2(0.0f, 0.0f);
1804 TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1805 PackIdMouseCursors = PackIdLines = -1;
1806 }
1807
~ImFontAtlas()1808 ImFontAtlas::~ImFontAtlas()
1809 {
1810 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1811 Clear();
1812 }
1813
ClearInputData()1814 void ImFontAtlas::ClearInputData()
1815 {
1816 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1817 for (int i = 0; i < ConfigData.Size; i++)
1818 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1819 {
1820 IM_FREE(ConfigData[i].FontData);
1821 ConfigData[i].FontData = NULL;
1822 }
1823
1824 // When clearing this we lose access to the font name and other information used to build the font.
1825 for (int i = 0; i < Fonts.Size; i++)
1826 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1827 {
1828 Fonts[i]->ConfigData = NULL;
1829 Fonts[i]->ConfigDataCount = 0;
1830 }
1831 ConfigData.clear();
1832 CustomRects.clear();
1833 PackIdMouseCursors = PackIdLines = -1;
1834 }
1835
ClearTexData()1836 void ImFontAtlas::ClearTexData()
1837 {
1838 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1839 if (TexPixelsAlpha8)
1840 IM_FREE(TexPixelsAlpha8);
1841 if (TexPixelsRGBA32)
1842 IM_FREE(TexPixelsRGBA32);
1843 TexPixelsAlpha8 = NULL;
1844 TexPixelsRGBA32 = NULL;
1845 }
1846
ClearFonts()1847 void ImFontAtlas::ClearFonts()
1848 {
1849 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1850 for (int i = 0; i < Fonts.Size; i++)
1851 IM_DELETE(Fonts[i]);
1852 Fonts.clear();
1853 }
1854
Clear()1855 void ImFontAtlas::Clear()
1856 {
1857 ClearInputData();
1858 ClearTexData();
1859 ClearFonts();
1860 }
1861
GetTexDataAsAlpha8(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1862 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1863 {
1864 // Build atlas on demand
1865 if (TexPixelsAlpha8 == NULL)
1866 {
1867 if (ConfigData.empty())
1868 AddFontDefault();
1869 Build();
1870 }
1871
1872 *out_pixels = TexPixelsAlpha8;
1873 if (out_width) *out_width = TexWidth;
1874 if (out_height) *out_height = TexHeight;
1875 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1876 }
1877
GetTexDataAsRGBA32(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1878 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1879 {
1880 // Convert to RGBA32 format on demand
1881 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1882 if (!TexPixelsRGBA32)
1883 {
1884 unsigned char* pixels = NULL;
1885 GetTexDataAsAlpha8(&pixels, NULL, NULL);
1886 if (pixels)
1887 {
1888 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
1889 const unsigned char* src = pixels;
1890 unsigned int* dst = TexPixelsRGBA32;
1891 for (int n = TexWidth * TexHeight; n > 0; n--)
1892 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1893 }
1894 }
1895
1896 *out_pixels = (unsigned char*)TexPixelsRGBA32;
1897 if (out_width) *out_width = TexWidth;
1898 if (out_height) *out_height = TexHeight;
1899 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1900 }
1901
AddFont(const ImFontConfig * font_cfg)1902 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1903 {
1904 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1905 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1906 IM_ASSERT(font_cfg->SizePixels > 0.0f);
1907
1908 // Create new font
1909 if (!font_cfg->MergeMode)
1910 Fonts.push_back(IM_NEW(ImFont));
1911 else
1912 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.
1913
1914 ConfigData.push_back(*font_cfg);
1915 ImFontConfig& new_font_cfg = ConfigData.back();
1916 if (new_font_cfg.DstFont == NULL)
1917 new_font_cfg.DstFont = Fonts.back();
1918 if (!new_font_cfg.FontDataOwnedByAtlas)
1919 {
1920 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
1921 new_font_cfg.FontDataOwnedByAtlas = true;
1922 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1923 }
1924
1925 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
1926 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
1927
1928 // Invalidate texture
1929 ClearTexData();
1930 return new_font_cfg.DstFont;
1931 }
1932
1933 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1934 static unsigned int stb_decompress_length(const unsigned char* input);
1935 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
1936 static const char* GetDefaultCompressedFontDataTTFBase85();
Decode85Byte(char c)1937 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
Decode85(const unsigned char * src,unsigned char * dst)1938 static void Decode85(const unsigned char* src, unsigned char* dst)
1939 {
1940 while (*src)
1941 {
1942 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
1943 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.
1944 src += 5;
1945 dst += 4;
1946 }
1947 }
1948
1949 // Load embedded ProggyClean.ttf at size 13, disable oversampling
AddFontDefault(const ImFontConfig * font_cfg_template)1950 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1951 {
1952 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1953 if (!font_cfg_template)
1954 {
1955 font_cfg.OversampleH = font_cfg.OversampleV = 1;
1956 font_cfg.PixelSnapH = true;
1957 }
1958 if (font_cfg.SizePixels <= 0.0f)
1959 font_cfg.SizePixels = 13.0f * 1.0f;
1960 if (font_cfg.Name[0] == '\0')
1961 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
1962 font_cfg.EllipsisChar = (ImWchar)0x0085;
1963 font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
1964
1965 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1966 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1967 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1968 return font;
1969 }
1970
AddFontFromFileTTF(const char * filename,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1971 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1972 {
1973 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1974 size_t data_size = 0;
1975 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1976 if (!data)
1977 {
1978 IM_ASSERT_USER_ERROR(0, "Could not load font file!");
1979 return NULL;
1980 }
1981 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1982 if (font_cfg.Name[0] == '\0')
1983 {
1984 // Store a short copy of filename into into the font name for convenience
1985 const char* p;
1986 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1987 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1988 }
1989 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1990 }
1991
1992 // 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)1993 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1994 {
1995 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1996 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1997 IM_ASSERT(font_cfg.FontData == NULL);
1998 font_cfg.FontData = ttf_data;
1999 font_cfg.FontDataSize = ttf_size;
2000 font_cfg.SizePixels = size_pixels;
2001 if (glyph_ranges)
2002 font_cfg.GlyphRanges = glyph_ranges;
2003 return AddFont(&font_cfg);
2004 }
2005
AddFontFromMemoryCompressedTTF(const void * compressed_ttf_data,int compressed_ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)2006 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
2007 {
2008 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
2009 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
2010 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
2011
2012 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
2013 IM_ASSERT(font_cfg.FontData == NULL);
2014 font_cfg.FontDataOwnedByAtlas = true;
2015 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
2016 }
2017
AddFontFromMemoryCompressedBase85TTF(const char * compressed_ttf_data_base85,float size_pixels,const ImFontConfig * font_cfg,const ImWchar * glyph_ranges)2018 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
2019 {
2020 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
2021 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
2022 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
2023 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
2024 IM_FREE(compressed_ttf);
2025 return font;
2026 }
2027
AddCustomRectRegular(int width,int height)2028 int ImFontAtlas::AddCustomRectRegular(int width, int height)
2029 {
2030 IM_ASSERT(width > 0 && width <= 0xFFFF);
2031 IM_ASSERT(height > 0 && height <= 0xFFFF);
2032 ImFontAtlasCustomRect r;
2033 r.Width = (unsigned short)width;
2034 r.Height = (unsigned short)height;
2035 CustomRects.push_back(r);
2036 return CustomRects.Size - 1; // Return index
2037 }
2038
AddCustomRectFontGlyph(ImFont * font,ImWchar id,int width,int height,float advance_x,const ImVec2 & offset)2039 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
2040 {
2041 #ifdef IMGUI_USE_WCHAR32
2042 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
2043 #endif
2044 IM_ASSERT(font != NULL);
2045 IM_ASSERT(width > 0 && width <= 0xFFFF);
2046 IM_ASSERT(height > 0 && height <= 0xFFFF);
2047 ImFontAtlasCustomRect r;
2048 r.Width = (unsigned short)width;
2049 r.Height = (unsigned short)height;
2050 r.GlyphID = id;
2051 r.GlyphAdvanceX = advance_x;
2052 r.GlyphOffset = offset;
2053 r.Font = font;
2054 CustomRects.push_back(r);
2055 return CustomRects.Size - 1; // Return index
2056 }
2057
CalcCustomRectUV(const ImFontAtlasCustomRect * rect,ImVec2 * out_uv_min,ImVec2 * out_uv_max) const2058 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
2059 {
2060 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
2061 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
2062 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
2063 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
2064 }
2065
GetMouseCursorTexData(ImGuiMouseCursor cursor_type,ImVec2 * out_offset,ImVec2 * out_size,ImVec2 out_uv_border[2],ImVec2 out_uv_fill[2])2066 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
2067 {
2068 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
2069 return false;
2070 if (Flags & ImFontAtlasFlags_NoMouseCursors)
2071 return false;
2072
2073 IM_ASSERT(PackIdMouseCursors != -1);
2074 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
2075 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
2076 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
2077 *out_size = size;
2078 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
2079 out_uv_border[0] = (pos) * TexUvScale;
2080 out_uv_border[1] = (pos + size) * TexUvScale;
2081 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2082 out_uv_fill[0] = (pos) * TexUvScale;
2083 out_uv_fill[1] = (pos + size) * TexUvScale;
2084 return true;
2085 }
2086
Build()2087 bool ImFontAtlas::Build()
2088 {
2089 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2090 return ImFontAtlasBuildWithStbTruetype(this);
2091 }
2092
ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256],float in_brighten_factor)2093 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
2094 {
2095 for (unsigned int i = 0; i < 256; i++)
2096 {
2097 unsigned int value = (unsigned int)(i * in_brighten_factor);
2098 out_table[i] = value > 255 ? 255 : (value & 0xFF);
2099 }
2100 }
2101
ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256],unsigned char * pixels,int x,int y,int w,int h,int stride)2102 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
2103 {
2104 unsigned char* data = pixels + x + y * stride;
2105 for (int j = h; j > 0; j--, data += stride)
2106 for (int i = 0; i < w; i++)
2107 data[i] = table[data[i]];
2108 }
2109
2110 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
2111 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
2112 struct ImFontBuildSrcData
2113 {
2114 stbtt_fontinfo FontInfo;
2115 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
2116 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
2117 stbtt_packedchar* PackedChars; // Output glyphs
2118 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
2119 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
2120 int GlyphsHighest; // Highest requested codepoint
2121 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
2122 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
2123 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
2124 };
2125
2126 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
2127 struct ImFontBuildDstData
2128 {
2129 int SrcCount; // Number of source fonts targeting this destination font.
2130 int GlyphsHighest;
2131 int GlyphsCount;
2132 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
2133 };
2134
UnpackBitVectorToFlatIndexList(const ImBitVector * in,ImVector<int> * out)2135 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
2136 {
2137 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
2138 const ImU32* it_begin = in->Storage.begin();
2139 const ImU32* it_end = in->Storage.end();
2140 for (const ImU32* it = it_begin; it < it_end; it++)
2141 if (ImU32 entries_32 = *it)
2142 for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
2143 if (entries_32 & ((ImU32)1 << bit_n))
2144 out->push_back((int)(((it - it_begin) << 5) + bit_n));
2145 }
2146
ImFontAtlasBuildWithStbTruetype(ImFontAtlas * atlas)2147 bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
2148 {
2149 IM_ASSERT(atlas->ConfigData.Size > 0);
2150
2151 ImFontAtlasBuildInit(atlas);
2152
2153 // Clear atlas
2154 atlas->TexID = (ImTextureID)NULL;
2155 atlas->TexWidth = atlas->TexHeight = 0;
2156 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
2157 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
2158 atlas->ClearTexData();
2159
2160 // Temporary storage for building
2161 ImVector<ImFontBuildSrcData> src_tmp_array;
2162 ImVector<ImFontBuildDstData> dst_tmp_array;
2163 src_tmp_array.resize(atlas->ConfigData.Size);
2164 dst_tmp_array.resize(atlas->Fonts.Size);
2165 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
2166 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
2167
2168 // 1. Initialize font loading structure, check font data validity
2169 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
2170 {
2171 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2172 ImFontConfig& cfg = atlas->ConfigData[src_i];
2173 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
2174
2175 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
2176 src_tmp.DstIndex = -1;
2177 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
2178 if (cfg.DstFont == atlas->Fonts[output_i])
2179 src_tmp.DstIndex = output_i;
2180 if (src_tmp.DstIndex == -1)
2181 {
2182 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
2183 return false;
2184 }
2185 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
2186 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
2187 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
2188 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
2189 return false;
2190
2191 // Measure highest codepoints
2192 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2193 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
2194 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2195 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
2196 dst_tmp.SrcCount++;
2197 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
2198 }
2199
2200 // 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.
2201 int total_glyphs_count = 0;
2202 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2203 {
2204 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2205 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2206 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
2207 if (dst_tmp.GlyphsSet.Storage.empty())
2208 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
2209
2210 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2211 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
2212 {
2213 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
2214 continue;
2215 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
2216 continue;
2217
2218 // Add to avail set/counters
2219 src_tmp.GlyphsCount++;
2220 dst_tmp.GlyphsCount++;
2221 src_tmp.GlyphsSet.SetBit(codepoint);
2222 dst_tmp.GlyphsSet.SetBit(codepoint);
2223 total_glyphs_count++;
2224 }
2225 }
2226
2227 // 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)
2228 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2229 {
2230 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2231 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
2232 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
2233 src_tmp.GlyphsSet.Clear();
2234 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
2235 }
2236 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
2237 dst_tmp_array[dst_i].GlyphsSet.Clear();
2238 dst_tmp_array.clear();
2239
2240 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
2241 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
2242 ImVector<stbrp_rect> buf_rects;
2243 ImVector<stbtt_packedchar> buf_packedchars;
2244 buf_rects.resize(total_glyphs_count);
2245 buf_packedchars.resize(total_glyphs_count);
2246 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
2247 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
2248
2249 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
2250 int total_surface = 0;
2251 int buf_rects_out_n = 0;
2252 int buf_packedchars_out_n = 0;
2253 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2254 {
2255 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2256 if (src_tmp.GlyphsCount == 0)
2257 continue;
2258
2259 src_tmp.Rects = &buf_rects[buf_rects_out_n];
2260 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
2261 buf_rects_out_n += src_tmp.GlyphsCount;
2262 buf_packedchars_out_n += src_tmp.GlyphsCount;
2263
2264 // Convert our ranges in the format stb_truetype wants
2265 ImFontConfig& cfg = atlas->ConfigData[src_i];
2266 src_tmp.PackRange.font_size = cfg.SizePixels;
2267 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
2268 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
2269 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
2270 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
2271 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
2272 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
2273
2274 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
2275 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
2276 const int padding = atlas->TexGlyphPadding;
2277 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
2278 {
2279 int x0, y0, x1, y1;
2280 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
2281 IM_ASSERT(glyph_index_in_font != 0);
2282 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
2283 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
2284 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
2285 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
2286 }
2287 }
2288
2289 // We need a width for the skyline algorithm, any width!
2290 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
2291 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
2292 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
2293 atlas->TexHeight = 0;
2294 if (atlas->TexDesiredWidth > 0)
2295 atlas->TexWidth = atlas->TexDesiredWidth;
2296 else
2297 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
2298
2299 // 5. Start packing
2300 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
2301 const int TEX_HEIGHT_MAX = 1024 * 32;
2302 stbtt_pack_context spc = {};
2303 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
2304 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
2305
2306 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
2307 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2308 {
2309 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2310 if (src_tmp.GlyphsCount == 0)
2311 continue;
2312
2313 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
2314
2315 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
2316 // 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?)
2317 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2318 if (src_tmp.Rects[glyph_i].was_packed)
2319 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
2320 }
2321
2322 // 7. Allocate texture
2323 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
2324 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
2325 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
2326 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
2327 spc.pixels = atlas->TexPixelsAlpha8;
2328 spc.height = atlas->TexHeight;
2329
2330 // 8. Render/rasterize font characters into the texture
2331 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2332 {
2333 ImFontConfig& cfg = atlas->ConfigData[src_i];
2334 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2335 if (src_tmp.GlyphsCount == 0)
2336 continue;
2337
2338 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
2339
2340 // Apply multiply operator
2341 if (cfg.RasterizerMultiply != 1.0f)
2342 {
2343 unsigned char multiply_table[256];
2344 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
2345 stbrp_rect* r = &src_tmp.Rects[0];
2346 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
2347 if (r->was_packed)
2348 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
2349 }
2350 src_tmp.Rects = NULL;
2351 }
2352
2353 // End packing
2354 stbtt_PackEnd(&spc);
2355 buf_rects.clear();
2356
2357 // 9. Setup ImFont and glyphs for runtime
2358 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2359 {
2360 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2361 if (src_tmp.GlyphsCount == 0)
2362 continue;
2363
2364 // When merging fonts with MergeMode=true:
2365 // - We can have multiple input fonts writing into a same destination font.
2366 // - dst_font->ConfigData is != from cfg which is our source configuration.
2367 ImFontConfig& cfg = atlas->ConfigData[src_i];
2368 ImFont* dst_font = cfg.DstFont;
2369
2370 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2371 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2372 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2373
2374 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2375 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2376 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2377 const float font_off_x = cfg.GlyphOffset.x;
2378 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
2379
2380 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2381 {
2382 // Register glyph
2383 const int codepoint = src_tmp.GlyphsList[glyph_i];
2384 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2385 stbtt_aligned_quad q;
2386 float unused_x = 0.0f, unused_y = 0.0f;
2387 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
2388 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);
2389 }
2390 }
2391
2392 // Cleanup temporary (ImVector doesn't honor destructor)
2393 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2394 src_tmp_array[src_i].~ImFontBuildSrcData();
2395
2396 ImFontAtlasBuildFinish(atlas);
2397 return true;
2398 }
2399
ImFontAtlasBuildSetupFont(ImFontAtlas * atlas,ImFont * font,ImFontConfig * font_config,float ascent,float descent)2400 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2401 {
2402 if (!font_config->MergeMode)
2403 {
2404 font->ClearOutputData();
2405 font->FontSize = font_config->SizePixels;
2406 font->ConfigData = font_config;
2407 font->ConfigDataCount = 0;
2408 font->ContainerAtlas = atlas;
2409 font->Ascent = ascent;
2410 font->Descent = descent;
2411 }
2412 font->ConfigDataCount++;
2413 }
2414
ImFontAtlasBuildPackCustomRects(ImFontAtlas * atlas,void * stbrp_context_opaque)2415 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2416 {
2417 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2418 IM_ASSERT(pack_context != NULL);
2419
2420 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
2421 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2422
2423 ImVector<stbrp_rect> pack_rects;
2424 pack_rects.resize(user_rects.Size);
2425 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2426 for (int i = 0; i < user_rects.Size; i++)
2427 {
2428 pack_rects[i].w = user_rects[i].Width;
2429 pack_rects[i].h = user_rects[i].Height;
2430 }
2431 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2432 for (int i = 0; i < pack_rects.Size; i++)
2433 if (pack_rects[i].was_packed)
2434 {
2435 user_rects[i].X = pack_rects[i].x;
2436 user_rects[i].Y = pack_rects[i].y;
2437 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2438 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2439 }
2440 }
2441
ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas * atlas,int x,int y,int w,int h,const char * in_str,char in_marker_char,unsigned char in_marker_pixel_value)2442 void ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
2443 {
2444 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2445 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2446 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
2447 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2448 for (int off_x = 0; off_x < w; off_x++)
2449 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
2450 }
2451
ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas * atlas)2452 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2453 {
2454 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
2455 IM_ASSERT(r->IsPacked());
2456
2457 const int w = atlas->TexWidth;
2458 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2459 {
2460 // Render/copy pixels
2461 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2462 const int x_for_white = r->X;
2463 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2464 ImFontAtlasBuildRender1bppRectFromString(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);
2465 ImFontAtlasBuildRender1bppRectFromString(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);
2466 }
2467 else
2468 {
2469 // Render 4 white pixels
2470 IM_ASSERT(r->Width == 2 && r->Height == 2);
2471 const int offset = (int)r->X + (int)r->Y * w;
2472 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2473 }
2474 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
2475 }
2476
ImFontAtlasBuildRenderLinesTexData(ImFontAtlas * atlas)2477 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
2478 {
2479 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
2480 return;
2481
2482 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
2483 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
2484 IM_ASSERT(r->IsPacked());
2485 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
2486 {
2487 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
2488 unsigned int y = n;
2489 unsigned int line_width = n;
2490 unsigned int pad_left = (r->Width - line_width) / 2;
2491 unsigned int pad_right = r->Width - (pad_left + line_width);
2492
2493 // Write each slice
2494 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
2495 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
2496 memset(write_ptr, 0x00, pad_left);
2497 memset(write_ptr + pad_left, 0xFF, line_width);
2498 memset(write_ptr + pad_left + line_width, 0x00, pad_right);
2499
2500 // Calculate UVs for this line
2501 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
2502 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
2503 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
2504 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
2505 }
2506 }
2507
2508 // Note: this is called / shared by both the stb_truetype and the FreeType builder
ImFontAtlasBuildInit(ImFontAtlas * atlas)2509 void ImFontAtlasBuildInit(ImFontAtlas* atlas)
2510 {
2511 // Register texture region for mouse cursors or standard white pixels
2512 if (atlas->PackIdMouseCursors < 0)
2513 {
2514 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2515 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2516 else
2517 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
2518 }
2519
2520 // Register texture region for thick lines
2521 // 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
2522 if (atlas->PackIdLines < 0)
2523 {
2524 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
2525 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
2526 }
2527 }
2528
2529 // This is called/shared by both the stb_truetype and the FreeType builder.
ImFontAtlasBuildFinish(ImFontAtlas * atlas)2530 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2531 {
2532 // Render into our custom data blocks
2533 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
2534 ImFontAtlasBuildRenderDefaultTexData(atlas);
2535 ImFontAtlasBuildRenderLinesTexData(atlas);
2536
2537 // Register custom rectangle glyphs
2538 for (int i = 0; i < atlas->CustomRects.Size; i++)
2539 {
2540 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
2541 if (r->Font == NULL || r->GlyphID == 0)
2542 continue;
2543
2544 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
2545 IM_ASSERT(r->Font->ContainerAtlas == atlas);
2546 ImVec2 uv0, uv1;
2547 atlas->CalcCustomRectUV(r, &uv0, &uv1);
2548 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);
2549 }
2550
2551 // Build all fonts lookup tables
2552 for (int i = 0; i < atlas->Fonts.Size; i++)
2553 if (atlas->Fonts[i]->DirtyLookupTables)
2554 atlas->Fonts[i]->BuildLookupTable();
2555
2556 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
2557 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
2558 // FIXME: Also note that 0x2026 is currently seldom included in our font ranges. Because of this we are more likely to use three individual dots.
2559 for (int i = 0; i < atlas->Fonts.size(); i++)
2560 {
2561 ImFont* font = atlas->Fonts[i];
2562 if (font->EllipsisChar != (ImWchar)-1)
2563 continue;
2564 const ImWchar ellipsis_variants[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
2565 for (int j = 0; j < IM_ARRAYSIZE(ellipsis_variants); j++)
2566 if (font->FindGlyphNoFallback(ellipsis_variants[j]) != NULL) // Verify glyph exists
2567 {
2568 font->EllipsisChar = ellipsis_variants[j];
2569 break;
2570 }
2571 }
2572 }
2573
2574 // Retrieve list of range (2 int per range, values are inclusive)
GetGlyphRangesDefault()2575 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2576 {
2577 static const ImWchar ranges[] =
2578 {
2579 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2580 0,
2581 };
2582 return &ranges[0];
2583 }
2584
GetGlyphRangesKorean()2585 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2586 {
2587 static const ImWchar ranges[] =
2588 {
2589 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2590 0x3131, 0x3163, // Korean alphabets
2591 0xAC00, 0xD7A3, // Korean characters
2592 0,
2593 };
2594 return &ranges[0];
2595 }
2596
GetGlyphRangesChineseFull()2597 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2598 {
2599 static const ImWchar ranges[] =
2600 {
2601 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2602 0x2000, 0x206F, // General Punctuation
2603 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2604 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2605 0xFF00, 0xFFEF, // Half-width characters
2606 0x4e00, 0x9FAF, // CJK Ideograms
2607 0,
2608 };
2609 return &ranges[0];
2610 }
2611
UnpackAccumulativeOffsetsIntoRanges(int base_codepoint,const short * accumulative_offsets,int accumulative_offsets_count,ImWchar * out_ranges)2612 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2613 {
2614 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2615 {
2616 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2617 base_codepoint += accumulative_offsets[n];
2618 }
2619 out_ranges[0] = 0;
2620 }
2621
2622 //-------------------------------------------------------------------------
2623 // [SECTION] ImFontAtlas glyph ranges helpers
2624 //-------------------------------------------------------------------------
2625
GetGlyphRangesChineseSimplifiedCommon()2626 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2627 {
2628 // Store 2500 regularly used characters for Simplified Chinese.
2629 // 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
2630 // This table covers 97.97% of all characters used during the month in July, 1987.
2631 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2632 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2633 static const short accumulative_offsets_from_0x4E00[] =
2634 {
2635 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,
2636 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,
2637 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,
2638 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,
2639 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,
2640 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,
2641 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,
2642 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,
2643 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,
2644 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,
2645 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,
2646 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,
2647 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,
2648 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,
2649 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,
2650 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,
2651 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,
2652 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,
2653 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,
2654 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,
2655 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,
2656 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,
2657 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,
2658 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,
2659 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,
2660 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,
2661 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,
2662 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,
2663 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,
2664 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,
2665 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,
2666 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,
2667 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,
2668 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,
2669 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,
2670 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,
2671 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,
2672 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,
2673 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,
2674 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
2675 };
2676 static ImWchar base_ranges[] = // not zero-terminated
2677 {
2678 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2679 0x2000, 0x206F, // General Punctuation
2680 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2681 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2682 0xFF00, 0xFFEF // Half-width characters
2683 };
2684 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2685 if (!full_ranges[0])
2686 {
2687 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2688 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2689 }
2690 return &full_ranges[0];
2691 }
2692
GetGlyphRangesJapanese()2693 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2694 {
2695 // 2999 ideograms code points for Japanese
2696 // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
2697 // - 863 Jinmeiyo (meaning "for personal name") Kanji code points
2698 // - Sourced from the character information database of the Information-technology Promotion Agency, Japan
2699 // - https://mojikiban.ipa.go.jp/mji/
2700 // - Available under the terms of the Creative Commons Attribution-ShareAlike 2.1 Japan (CC BY-SA 2.1 JP).
2701 // - https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en
2702 // - https://creativecommons.org/licenses/by-sa/2.1/jp/legalcode
2703 // - You can generate this code by the script at:
2704 // - https://github.com/vaiorabbit/everyday_use_kanji
2705 // - References:
2706 // - List of Joyo Kanji
2707 // - (Official list by the Agency for Cultural Affairs) https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kakuki/14/tosin02/index.html
2708 // - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
2709 // - List of Jinmeiyo Kanji
2710 // - (Official list by the Ministry of Justice) http://www.moj.go.jp/MINJI/minji86.html
2711 // - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
2712 // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
2713 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2714 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2715 static const short accumulative_offsets_from_0x4E00[] =
2716 {
2717 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,
2718 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,
2719 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,
2720 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,
2721 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,
2722 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,
2723 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,
2724 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,
2725 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,
2726 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,
2727 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,
2728 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,
2729 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,
2730 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,
2731 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,
2732 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,
2733 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,
2734 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,
2735 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,
2736 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,
2737 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,
2738 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,
2739 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,
2740 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,
2741 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,
2742 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,
2743 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,
2744 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,
2745 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,
2746 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,
2747 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,
2748 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,
2749 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,
2750 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,
2751 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,
2752 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,
2753 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,
2754 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,
2755 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,
2756 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,
2757 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,
2758 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,
2759 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,
2760 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,
2761 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,
2762 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,
2763 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,
2764 3,2,1,1,1,1,2,1,1,
2765 };
2766 static ImWchar base_ranges[] = // not zero-terminated
2767 {
2768 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2769 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2770 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2771 0xFF00, 0xFFEF // Half-width characters
2772 };
2773 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
2774 if (!full_ranges[0])
2775 {
2776 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2777 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2778 }
2779 return &full_ranges[0];
2780 }
2781
GetGlyphRangesCyrillic()2782 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
2783 {
2784 static const ImWchar ranges[] =
2785 {
2786 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2787 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
2788 0x2DE0, 0x2DFF, // Cyrillic Extended-A
2789 0xA640, 0xA69F, // Cyrillic Extended-B
2790 0,
2791 };
2792 return &ranges[0];
2793 }
2794
GetGlyphRangesThai()2795 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
2796 {
2797 static const ImWchar ranges[] =
2798 {
2799 0x0020, 0x00FF, // Basic Latin
2800 0x2010, 0x205E, // Punctuations
2801 0x0E00, 0x0E7F, // Thai
2802 0,
2803 };
2804 return &ranges[0];
2805 }
2806
GetGlyphRangesVietnamese()2807 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
2808 {
2809 static const ImWchar ranges[] =
2810 {
2811 0x0020, 0x00FF, // Basic Latin
2812 0x0102, 0x0103,
2813 0x0110, 0x0111,
2814 0x0128, 0x0129,
2815 0x0168, 0x0169,
2816 0x01A0, 0x01A1,
2817 0x01AF, 0x01B0,
2818 0x1EA0, 0x1EF9,
2819 0,
2820 };
2821 return &ranges[0];
2822 }
2823
2824 //-----------------------------------------------------------------------------
2825 // [SECTION] ImFontGlyphRangesBuilder
2826 //-----------------------------------------------------------------------------
2827
AddText(const char * text,const char * text_end)2828 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
2829 {
2830 while (text_end ? (text < text_end) : *text)
2831 {
2832 unsigned int c = 0;
2833 int c_len = ImTextCharFromUtf8(&c, text, text_end);
2834 text += c_len;
2835 if (c_len == 0)
2836 break;
2837 AddChar((ImWchar)c);
2838 }
2839 }
2840
AddRanges(const ImWchar * ranges)2841 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
2842 {
2843 for (; ranges[0]; ranges += 2)
2844 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
2845 AddChar(c);
2846 }
2847
BuildRanges(ImVector<ImWchar> * out_ranges)2848 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
2849 {
2850 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
2851 for (int n = 0; n <= max_codepoint; n++)
2852 if (GetBit(n))
2853 {
2854 out_ranges->push_back((ImWchar)n);
2855 while (n < max_codepoint && GetBit(n + 1))
2856 n++;
2857 out_ranges->push_back((ImWchar)n);
2858 }
2859 out_ranges->push_back(0);
2860 }
2861
2862 //-----------------------------------------------------------------------------
2863 // [SECTION] ImFont
2864 //-----------------------------------------------------------------------------
2865
ImFont()2866 ImFont::ImFont()
2867 {
2868 FontSize = 0.0f;
2869 FallbackAdvanceX = 0.0f;
2870 FallbackChar = (ImWchar)'?';
2871 EllipsisChar = (ImWchar)-1;
2872 FallbackGlyph = NULL;
2873 ContainerAtlas = NULL;
2874 ConfigData = NULL;
2875 ConfigDataCount = 0;
2876 DirtyLookupTables = false;
2877 Scale = 1.0f;
2878 Ascent = Descent = 0.0f;
2879 MetricsTotalSurface = 0;
2880 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2881 }
2882
~ImFont()2883 ImFont::~ImFont()
2884 {
2885 ClearOutputData();
2886 }
2887
ClearOutputData()2888 void ImFont::ClearOutputData()
2889 {
2890 FontSize = 0.0f;
2891 FallbackAdvanceX = 0.0f;
2892 Glyphs.clear();
2893 IndexAdvanceX.clear();
2894 IndexLookup.clear();
2895 FallbackGlyph = NULL;
2896 ContainerAtlas = NULL;
2897 DirtyLookupTables = true;
2898 Ascent = Descent = 0.0f;
2899 MetricsTotalSurface = 0;
2900 }
2901
BuildLookupTable()2902 void ImFont::BuildLookupTable()
2903 {
2904 int max_codepoint = 0;
2905 for (int i = 0; i != Glyphs.Size; i++)
2906 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
2907
2908 // Build lookup table
2909 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
2910 IndexAdvanceX.clear();
2911 IndexLookup.clear();
2912 DirtyLookupTables = false;
2913 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2914 GrowIndex(max_codepoint + 1);
2915 for (int i = 0; i < Glyphs.Size; i++)
2916 {
2917 int codepoint = (int)Glyphs[i].Codepoint;
2918 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
2919 IndexLookup[codepoint] = (ImWchar)i;
2920
2921 // Mark 4K page as used
2922 const int page_n = codepoint / 4096;
2923 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
2924 }
2925
2926 // Create a glyph to handle TAB
2927 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
2928 if (FindGlyph((ImWchar)' '))
2929 {
2930 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
2931 Glyphs.resize(Glyphs.Size + 1);
2932 ImFontGlyph& tab_glyph = Glyphs.back();
2933 tab_glyph = *FindGlyph((ImWchar)' ');
2934 tab_glyph.Codepoint = '\t';
2935 tab_glyph.AdvanceX *= IM_TABSIZE;
2936 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
2937 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
2938 }
2939
2940 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
2941 SetGlyphVisible((ImWchar)' ', false);
2942 SetGlyphVisible((ImWchar)'\t', false);
2943
2944 // Setup fall-backs
2945 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
2946 FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
2947 for (int i = 0; i < max_codepoint + 1; i++)
2948 if (IndexAdvanceX[i] < 0.0f)
2949 IndexAdvanceX[i] = FallbackAdvanceX;
2950 }
2951
2952 // API is designed this way to avoid exposing the 4K page size
2953 // e.g. use with IsGlyphRangeUnused(0, 255)
IsGlyphRangeUnused(unsigned int c_begin,unsigned int c_last)2954 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
2955 {
2956 unsigned int page_begin = (c_begin / 4096);
2957 unsigned int page_last = (c_last / 4096);
2958 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
2959 if ((page_n >> 3) < sizeof(Used4kPagesMap))
2960 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
2961 return false;
2962 return true;
2963 }
2964
SetGlyphVisible(ImWchar c,bool visible)2965 void ImFont::SetGlyphVisible(ImWchar c, bool visible)
2966 {
2967 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
2968 glyph->Visible = visible ? 1 : 0;
2969 }
2970
SetFallbackChar(ImWchar c)2971 void ImFont::SetFallbackChar(ImWchar c)
2972 {
2973 FallbackChar = c;
2974 BuildLookupTable();
2975 }
2976
GrowIndex(int new_size)2977 void ImFont::GrowIndex(int new_size)
2978 {
2979 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
2980 if (new_size <= IndexLookup.Size)
2981 return;
2982 IndexAdvanceX.resize(new_size, -1.0f);
2983 IndexLookup.resize(new_size, (ImWchar)-1);
2984 }
2985
2986 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
2987 // 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).
2988 // '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)2989 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)
2990 {
2991 if (cfg != NULL)
2992 {
2993 // Clamp & recenter if needed
2994 const float advance_x_original = advance_x;
2995 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
2996 if (advance_x != advance_x_original)
2997 {
2998 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
2999 x0 += char_off_x;
3000 x1 += char_off_x;
3001 }
3002
3003 // Snap to pixel
3004 if (cfg->PixelSnapH)
3005 advance_x = IM_ROUND(advance_x);
3006
3007 // Bake spacing
3008 advance_x += cfg->GlyphExtraSpacing.x;
3009 }
3010
3011 Glyphs.resize(Glyphs.Size + 1);
3012 ImFontGlyph& glyph = Glyphs.back();
3013 glyph.Codepoint = (unsigned int)codepoint;
3014 glyph.Visible = (x0 != x1) && (y0 != y1);
3015 glyph.X0 = x0;
3016 glyph.Y0 = y0;
3017 glyph.X1 = x1;
3018 glyph.Y1 = y1;
3019 glyph.U0 = u0;
3020 glyph.V0 = v0;
3021 glyph.U1 = u1;
3022 glyph.V1 = v1;
3023 glyph.AdvanceX = advance_x;
3024
3025 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
3026 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
3027 float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
3028 DirtyLookupTables = true;
3029 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
3030 }
3031
AddRemapChar(ImWchar dst,ImWchar src,bool overwrite_dst)3032 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
3033 {
3034 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
3035 unsigned int index_size = (unsigned int)IndexLookup.Size;
3036
3037 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
3038 return;
3039 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
3040 return;
3041
3042 GrowIndex(dst + 1);
3043 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
3044 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
3045 }
3046
FindGlyph(ImWchar c) const3047 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
3048 {
3049 if (c >= (size_t)IndexLookup.Size)
3050 return FallbackGlyph;
3051 const ImWchar i = IndexLookup.Data[c];
3052 if (i == (ImWchar)-1)
3053 return FallbackGlyph;
3054 return &Glyphs.Data[i];
3055 }
3056
FindGlyphNoFallback(ImWchar c) const3057 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
3058 {
3059 if (c >= (size_t)IndexLookup.Size)
3060 return NULL;
3061 const ImWchar i = IndexLookup.Data[c];
3062 if (i == (ImWchar)-1)
3063 return NULL;
3064 return &Glyphs.Data[i];
3065 }
3066
CalcWordWrapPositionA(float scale,const char * text,const char * text_end,float wrap_width) const3067 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
3068 {
3069 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
3070 // 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.)
3071
3072 // For references, possible wrap point marked with ^
3073 // "aaa bbb, ccc,ddd. eee fff. ggg!"
3074 // ^ ^ ^ ^ ^__ ^ ^
3075
3076 // List of hardcoded separators: .,;!?'"
3077
3078 // Skip extra blanks after a line returns (that includes not counting them in width computation)
3079 // e.g. "Hello world" --> "Hello" "World"
3080
3081 // Cut words that cannot possibly fit within one line.
3082 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
3083
3084 float line_width = 0.0f;
3085 float word_width = 0.0f;
3086 float blank_width = 0.0f;
3087 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
3088
3089 const char* word_end = text;
3090 const char* prev_word_end = NULL;
3091 bool inside_word = true;
3092
3093 const char* s = text;
3094 while (s < text_end)
3095 {
3096 unsigned int c = (unsigned int)*s;
3097 const char* next_s;
3098 if (c < 0x80)
3099 next_s = s + 1;
3100 else
3101 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
3102 if (c == 0)
3103 break;
3104
3105 if (c < 32)
3106 {
3107 if (c == '\n')
3108 {
3109 line_width = word_width = blank_width = 0.0f;
3110 inside_word = true;
3111 s = next_s;
3112 continue;
3113 }
3114 if (c == '\r')
3115 {
3116 s = next_s;
3117 continue;
3118 }
3119 }
3120
3121 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
3122 if (ImCharIsBlankW(c))
3123 {
3124 if (inside_word)
3125 {
3126 line_width += blank_width;
3127 blank_width = 0.0f;
3128 word_end = s;
3129 }
3130 blank_width += char_width;
3131 inside_word = false;
3132 }
3133 else
3134 {
3135 word_width += char_width;
3136 if (inside_word)
3137 {
3138 word_end = next_s;
3139 }
3140 else
3141 {
3142 prev_word_end = word_end;
3143 line_width += word_width + blank_width;
3144 word_width = blank_width = 0.0f;
3145 }
3146
3147 // Allow wrapping after punctuation.
3148 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
3149 }
3150
3151 // We ignore blank width at the end of the line (they can be skipped)
3152 if (line_width + word_width > wrap_width)
3153 {
3154 // Words that cannot possibly fit within an entire line will be cut anywhere.
3155 if (word_width < wrap_width)
3156 s = prev_word_end ? prev_word_end : word_end;
3157 break;
3158 }
3159
3160 s = next_s;
3161 }
3162
3163 return s;
3164 }
3165
CalcTextSizeA(float size,float max_width,float wrap_width,const char * text_begin,const char * text_end,const char ** remaining) const3166 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
3167 {
3168 if (!text_end)
3169 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
3170
3171 const float line_height = size;
3172 const float scale = size / FontSize;
3173
3174 ImVec2 text_size = ImVec2(0, 0);
3175 float line_width = 0.0f;
3176
3177 const bool word_wrap_enabled = (wrap_width > 0.0f);
3178 const char* word_wrap_eol = NULL;
3179
3180 const char* s = text_begin;
3181 while (s < text_end)
3182 {
3183 if (word_wrap_enabled)
3184 {
3185 // 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.
3186 if (!word_wrap_eol)
3187 {
3188 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
3189 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3190 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
3191 }
3192
3193 if (s >= word_wrap_eol)
3194 {
3195 if (text_size.x < line_width)
3196 text_size.x = line_width;
3197 text_size.y += line_height;
3198 line_width = 0.0f;
3199 word_wrap_eol = NULL;
3200
3201 // Wrapping skips upcoming blanks
3202 while (s < text_end)
3203 {
3204 const char c = *s;
3205 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3206 }
3207 continue;
3208 }
3209 }
3210
3211 // Decode and advance source
3212 const char* prev_s = s;
3213 unsigned int c = (unsigned int)*s;
3214 if (c < 0x80)
3215 {
3216 s += 1;
3217 }
3218 else
3219 {
3220 s += ImTextCharFromUtf8(&c, s, text_end);
3221 if (c == 0) // Malformed UTF-8?
3222 break;
3223 }
3224
3225 if (c < 32)
3226 {
3227 if (c == '\n')
3228 {
3229 text_size.x = ImMax(text_size.x, line_width);
3230 text_size.y += line_height;
3231 line_width = 0.0f;
3232 continue;
3233 }
3234 if (c == '\r')
3235 continue;
3236 }
3237
3238 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
3239 if (line_width + char_width >= max_width)
3240 {
3241 s = prev_s;
3242 break;
3243 }
3244
3245 line_width += char_width;
3246 }
3247
3248 if (text_size.x < line_width)
3249 text_size.x = line_width;
3250
3251 if (line_width > 0 || text_size.y == 0.0f)
3252 text_size.y += line_height;
3253
3254 if (remaining)
3255 *remaining = s;
3256
3257 return text_size;
3258 }
3259
RenderChar(ImDrawList * draw_list,float size,ImVec2 pos,ImU32 col,ImWchar c) const3260 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
3261 {
3262 const ImFontGlyph* glyph = FindGlyph(c);
3263 if (!glyph || !glyph->Visible)
3264 return;
3265 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
3266 pos.x = IM_FLOOR(pos.x);
3267 pos.y = IM_FLOOR(pos.y);
3268 draw_list->PrimReserve(6, 4);
3269 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);
3270 }
3271
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) const3272 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
3273 {
3274 if (!text_end)
3275 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
3276
3277 // Align to be pixel perfect
3278 pos.x = IM_FLOOR(pos.x);
3279 pos.y = IM_FLOOR(pos.y);
3280 float x = pos.x;
3281 float y = pos.y;
3282 if (y > clip_rect.w)
3283 return;
3284
3285 const float scale = size / FontSize;
3286 const float line_height = FontSize * scale;
3287 const bool word_wrap_enabled = (wrap_width > 0.0f);
3288 const char* word_wrap_eol = NULL;
3289
3290 // Fast-forward to first visible line
3291 const char* s = text_begin;
3292 if (y + line_height < clip_rect.y && !word_wrap_enabled)
3293 while (y + line_height < clip_rect.y && s < text_end)
3294 {
3295 s = (const char*)memchr(s, '\n', text_end - s);
3296 s = s ? s + 1 : text_end;
3297 y += line_height;
3298 }
3299
3300 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
3301 // 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)
3302 if (text_end - s > 10000 && !word_wrap_enabled)
3303 {
3304 const char* s_end = s;
3305 float y_end = y;
3306 while (y_end < clip_rect.w && s_end < text_end)
3307 {
3308 s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
3309 s_end = s_end ? s_end + 1 : text_end;
3310 y_end += line_height;
3311 }
3312 text_end = s_end;
3313 }
3314 if (s == text_end)
3315 return;
3316
3317 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
3318 const int vtx_count_max = (int)(text_end - s) * 4;
3319 const int idx_count_max = (int)(text_end - s) * 6;
3320 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
3321 draw_list->PrimReserve(idx_count_max, vtx_count_max);
3322
3323 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
3324 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
3325 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
3326
3327 while (s < text_end)
3328 {
3329 if (word_wrap_enabled)
3330 {
3331 // 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.
3332 if (!word_wrap_eol)
3333 {
3334 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
3335 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3336 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
3337 }
3338
3339 if (s >= word_wrap_eol)
3340 {
3341 x = pos.x;
3342 y += line_height;
3343 word_wrap_eol = NULL;
3344
3345 // Wrapping skips upcoming blanks
3346 while (s < text_end)
3347 {
3348 const char c = *s;
3349 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3350 }
3351 continue;
3352 }
3353 }
3354
3355 // Decode and advance source
3356 unsigned int c = (unsigned int)*s;
3357 if (c < 0x80)
3358 {
3359 s += 1;
3360 }
3361 else
3362 {
3363 s += ImTextCharFromUtf8(&c, s, text_end);
3364 if (c == 0) // Malformed UTF-8?
3365 break;
3366 }
3367
3368 if (c < 32)
3369 {
3370 if (c == '\n')
3371 {
3372 x = pos.x;
3373 y += line_height;
3374 if (y > clip_rect.w)
3375 break; // break out of main loop
3376 continue;
3377 }
3378 if (c == '\r')
3379 continue;
3380 }
3381
3382 const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
3383 if (glyph == NULL)
3384 continue;
3385
3386 float char_width = glyph->AdvanceX * scale;
3387 if (glyph->Visible)
3388 {
3389 // 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
3390 float x1 = x + glyph->X0 * scale;
3391 float x2 = x + glyph->X1 * scale;
3392 float y1 = y + glyph->Y0 * scale;
3393 float y2 = y + glyph->Y1 * scale;
3394 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
3395 {
3396 // Render a character
3397 float u1 = glyph->U0;
3398 float v1 = glyph->V0;
3399 float u2 = glyph->U1;
3400 float v2 = glyph->V1;
3401
3402 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
3403 if (cpu_fine_clip)
3404 {
3405 if (x1 < clip_rect.x)
3406 {
3407 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
3408 x1 = clip_rect.x;
3409 }
3410 if (y1 < clip_rect.y)
3411 {
3412 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
3413 y1 = clip_rect.y;
3414 }
3415 if (x2 > clip_rect.z)
3416 {
3417 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
3418 x2 = clip_rect.z;
3419 }
3420 if (y2 > clip_rect.w)
3421 {
3422 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
3423 y2 = clip_rect.w;
3424 }
3425 if (y1 >= y2)
3426 {
3427 x += char_width;
3428 continue;
3429 }
3430 }
3431
3432 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
3433 {
3434 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
3435 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
3436 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
3437 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
3438 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
3439 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
3440 vtx_write += 4;
3441 vtx_current_idx += 4;
3442 idx_write += 6;
3443 }
3444 }
3445 }
3446 x += char_width;
3447 }
3448
3449 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
3450 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
3451 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
3452 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
3453 draw_list->_VtxWritePtr = vtx_write;
3454 draw_list->_IdxWritePtr = idx_write;
3455 draw_list->_VtxCurrentIdx = vtx_current_idx;
3456 }
3457
3458 //-----------------------------------------------------------------------------
3459 // [SECTION] ImGui Internal Render Helpers
3460 //-----------------------------------------------------------------------------
3461 // Vaguely redesigned to stop accessing ImGui global state:
3462 // - RenderArrow()
3463 // - RenderBullet()
3464 // - RenderCheckMark()
3465 // - RenderMouseCursor()
3466 // - RenderArrowDockMenu()
3467 // - RenderArrowPointingAt()
3468 // - RenderRectFilledRangeH()
3469 // - RenderRectFilledWithHole()
3470 //-----------------------------------------------------------------------------
3471 // Function in need of a redesign (legacy mess)
3472 // - RenderColorRectWithAlphaCheckerboard()
3473 //-----------------------------------------------------------------------------
3474
3475 // 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)3476 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
3477 {
3478 const float h = draw_list->_Data->FontSize * 1.00f;
3479 float r = h * 0.40f * scale;
3480 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
3481
3482 ImVec2 a, b, c;
3483 switch (dir)
3484 {
3485 case ImGuiDir_Up:
3486 case ImGuiDir_Down:
3487 if (dir == ImGuiDir_Up) r = -r;
3488 a = ImVec2(+0.000f, +0.750f) * r;
3489 b = ImVec2(-0.866f, -0.750f) * r;
3490 c = ImVec2(+0.866f, -0.750f) * r;
3491 break;
3492 case ImGuiDir_Left:
3493 case ImGuiDir_Right:
3494 if (dir == ImGuiDir_Left) r = -r;
3495 a = ImVec2(+0.750f, +0.000f) * r;
3496 b = ImVec2(-0.750f, +0.866f) * r;
3497 c = ImVec2(-0.750f, -0.866f) * r;
3498 break;
3499 case ImGuiDir_None:
3500 case ImGuiDir_COUNT:
3501 IM_ASSERT(0);
3502 break;
3503 }
3504 draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
3505 }
3506
RenderBullet(ImDrawList * draw_list,ImVec2 pos,ImU32 col)3507 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
3508 {
3509 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
3510 }
3511
RenderCheckMark(ImDrawList * draw_list,ImVec2 pos,ImU32 col,float sz)3512 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
3513 {
3514 float thickness = ImMax(sz / 5.0f, 1.0f);
3515 sz -= thickness * 0.5f;
3516 pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
3517
3518 float third = sz / 3.0f;
3519 float bx = pos.x + third;
3520 float by = pos.y + sz - third * 0.5f;
3521 draw_list->PathLineTo(ImVec2(bx - third, by - third));
3522 draw_list->PathLineTo(ImVec2(bx, by));
3523 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
3524 draw_list->PathStroke(col, false, thickness);
3525 }
3526
RenderMouseCursor(ImDrawList * draw_list,ImVec2 pos,float scale,ImGuiMouseCursor mouse_cursor,ImU32 col_fill,ImU32 col_border,ImU32 col_shadow)3527 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
3528 {
3529 if (mouse_cursor == ImGuiMouseCursor_None)
3530 return;
3531 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
3532
3533 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
3534 ImVec2 offset, size, uv[4];
3535 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
3536 {
3537 pos -= offset;
3538 const ImTextureID tex_id = font_atlas->TexID;
3539 draw_list->PushTextureID(tex_id);
3540 draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
3541 draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
3542 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
3543 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
3544 draw_list->PopTextureID();
3545 }
3546 }
3547
3548 // 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)3549 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
3550 {
3551 switch (direction)
3552 {
3553 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;
3554 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;
3555 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;
3556 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;
3557 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
3558 }
3559 }
3560
3561 // This is less wide than RenderArrow() and we use in dock nodes instead of the regular RenderArrow() to denote a change of functionality,
3562 // and because the saved space means that the left-most tab label can stay at exactly the same position as the label of a loose window.
RenderArrowDockMenu(ImDrawList * draw_list,ImVec2 p_min,float sz,ImU32 col)3563 void ImGui::RenderArrowDockMenu(ImDrawList* draw_list, ImVec2 p_min, float sz, ImU32 col)
3564 {
3565 draw_list->AddRectFilled(p_min + ImVec2(sz * 0.10f, sz * 0.15f), p_min + ImVec2(sz * 0.70f, sz * 0.30f), col);
3566 RenderArrowPointingAt(draw_list, p_min + ImVec2(sz * 0.40f, sz * 0.85f), ImVec2(sz * 0.30f, sz * 0.40f), ImGuiDir_Down, col);
3567 }
3568
ImAcos01(float x)3569 static inline float ImAcos01(float x)
3570 {
3571 if (x <= 0.0f) return IM_PI * 0.5f;
3572 if (x >= 1.0f) return 0.0f;
3573 return ImAcos(x);
3574 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
3575 }
3576
3577 // 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)3578 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
3579 {
3580 if (x_end_norm == x_start_norm)
3581 return;
3582 if (x_start_norm > x_end_norm)
3583 ImSwap(x_start_norm, x_end_norm);
3584
3585 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
3586 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
3587 if (rounding == 0.0f)
3588 {
3589 draw_list->AddRectFilled(p0, p1, col, 0.0f);
3590 return;
3591 }
3592
3593 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
3594 const float inv_rounding = 1.0f / rounding;
3595 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
3596 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
3597 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
3598 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
3599 if (arc0_b == arc0_e)
3600 {
3601 draw_list->PathLineTo(ImVec2(x0, p1.y));
3602 draw_list->PathLineTo(ImVec2(x0, p0.y));
3603 }
3604 else if (arc0_b == 0.0f && arc0_e == half_pi)
3605 {
3606 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
3607 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
3608 }
3609 else
3610 {
3611 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
3612 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
3613 }
3614 if (p1.x > rect.Min.x + rounding)
3615 {
3616 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
3617 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
3618 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
3619 if (arc1_b == arc1_e)
3620 {
3621 draw_list->PathLineTo(ImVec2(x1, p0.y));
3622 draw_list->PathLineTo(ImVec2(x1, p1.y));
3623 }
3624 else if (arc1_b == 0.0f && arc1_e == half_pi)
3625 {
3626 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
3627 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
3628 }
3629 else
3630 {
3631 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
3632 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
3633 }
3634 }
3635 draw_list->PathFillConvex(col);
3636 }
3637
RenderRectFilledWithHole(ImDrawList * draw_list,ImRect outer,ImRect inner,ImU32 col,float rounding)3638 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
3639 {
3640 const bool fill_L = (inner.Min.x > outer.Min.x);
3641 const bool fill_R = (inner.Max.x < outer.Max.x);
3642 const bool fill_U = (inner.Min.y > outer.Min.y);
3643 const bool fill_D = (inner.Max.y < outer.Max.y);
3644 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 : ImDrawCornerFlags_TopLeft) | (fill_D ? 0 : ImDrawCornerFlags_BotLeft));
3645 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 : ImDrawCornerFlags_TopRight) | (fill_D ? 0 : ImDrawCornerFlags_BotRight));
3646 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 : ImDrawCornerFlags_TopLeft) | (fill_R ? 0 : ImDrawCornerFlags_TopRight));
3647 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 : ImDrawCornerFlags_BotLeft) | (fill_R ? 0 : ImDrawCornerFlags_BotRight));
3648 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopLeft);
3649 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopRight);
3650 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotLeft);
3651 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotRight);
3652 }
3653
3654 // Helper for ColorPicker4()
3655 // 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.
3656 // 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.
3657 // FIXME: uses ImGui::GetColorU32
RenderColorRectWithAlphaCheckerboard(ImDrawList * draw_list,ImVec2 p_min,ImVec2 p_max,ImU32 col,float grid_step,ImVec2 grid_off,float rounding,int rounding_corners_flags)3658 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, int rounding_corners_flags)
3659 {
3660 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
3661 {
3662 ImU32 col_bg1 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
3663 ImU32 col_bg2 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
3664 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, rounding_corners_flags);
3665
3666 int yi = 0;
3667 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
3668 {
3669 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
3670 if (y2 <= y1)
3671 continue;
3672 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
3673 {
3674 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
3675 if (x2 <= x1)
3676 continue;
3677 int rounding_corners_flags_cell = 0;
3678 if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; }
3679 if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; }
3680 rounding_corners_flags_cell &= rounding_corners_flags;
3681 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell);
3682 }
3683 }
3684 }
3685 else
3686 {
3687 draw_list->AddRectFilled(p_min, p_max, col, rounding, rounding_corners_flags);
3688 }
3689 }
3690
3691 //-----------------------------------------------------------------------------
3692 // [SECTION] Decompression code
3693 //-----------------------------------------------------------------------------
3694 // Compressed with stb_compress() then converted to a C array and encoded as base85.
3695 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
3696 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3697 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
3698 //-----------------------------------------------------------------------------
3699
stb_decompress_length(const unsigned char * input)3700 static unsigned int stb_decompress_length(const unsigned char *input)
3701 {
3702 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
3703 }
3704
3705 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
3706 static const unsigned char *stb__barrier_in_b;
3707 static unsigned char *stb__dout;
stb__match(const unsigned char * data,unsigned int length)3708 static void stb__match(const unsigned char *data, unsigned int length)
3709 {
3710 // INVERSE of memmove... write each byte before copying the next...
3711 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3712 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3713 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
3714 while (length--) *stb__dout++ = *data++;
3715 }
3716
stb__lit(const unsigned char * data,unsigned int length)3717 static void stb__lit(const unsigned char *data, unsigned int length)
3718 {
3719 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3720 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3721 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
3722 memcpy(stb__dout, data, length);
3723 stb__dout += length;
3724 }
3725
3726 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
3727 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
3728 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
3729
stb_decompress_token(const unsigned char * i)3730 static const unsigned char *stb_decompress_token(const unsigned char *i)
3731 {
3732 if (*i >= 0x20) { // use fewer if's for cases that expand small
3733 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
3734 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
3735 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
3736 } else { // more ifs for cases that expand large, since overhead is amortized
3737 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
3738 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
3739 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
3740 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
3741 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
3742 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
3743 }
3744 return i;
3745 }
3746
stb_adler32(unsigned int adler32,unsigned char * buffer,unsigned int buflen)3747 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
3748 {
3749 const unsigned long ADLER_MOD = 65521;
3750 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
3751 unsigned long blocklen = buflen % 5552;
3752
3753 unsigned long i;
3754 while (buflen) {
3755 for (i=0; i + 7 < blocklen; i += 8) {
3756 s1 += buffer[0], s2 += s1;
3757 s1 += buffer[1], s2 += s1;
3758 s1 += buffer[2], s2 += s1;
3759 s1 += buffer[3], s2 += s1;
3760 s1 += buffer[4], s2 += s1;
3761 s1 += buffer[5], s2 += s1;
3762 s1 += buffer[6], s2 += s1;
3763 s1 += buffer[7], s2 += s1;
3764
3765 buffer += 8;
3766 }
3767
3768 for (; i < blocklen; ++i)
3769 s1 += *buffer++, s2 += s1;
3770
3771 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
3772 buflen -= blocklen;
3773 blocklen = 5552;
3774 }
3775 return (unsigned int)(s2 << 16) + (unsigned int)s1;
3776 }
3777
stb_decompress(unsigned char * output,const unsigned char * i,unsigned int)3778 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
3779 {
3780 if (stb__in4(0) != 0x57bC0000) return 0;
3781 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
3782 const unsigned int olen = stb_decompress_length(i);
3783 stb__barrier_in_b = i;
3784 stb__barrier_out_e = output + olen;
3785 stb__barrier_out_b = output;
3786 i += 16;
3787
3788 stb__dout = output;
3789 for (;;) {
3790 const unsigned char *old_i = i;
3791 i = stb_decompress_token(i);
3792 if (i == old_i) {
3793 if (*i == 0x05 && i[1] == 0xfa) {
3794 IM_ASSERT(stb__dout == output + olen);
3795 if (stb__dout != output + olen) return 0;
3796 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
3797 return 0;
3798 return olen;
3799 } else {
3800 IM_ASSERT(0); /* NOTREACHED */
3801 return 0;
3802 }
3803 }
3804 IM_ASSERT(stb__dout <= output + olen);
3805 if (stb__dout > output + olen)
3806 return 0;
3807 }
3808 }
3809
3810 //-----------------------------------------------------------------------------
3811 // [SECTION] Default font data (ProggyClean.ttf)
3812 //-----------------------------------------------------------------------------
3813 // ProggyClean.ttf
3814 // Copyright (c) 2004, 2005 Tristan Grimmer
3815 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
3816 // Download and more information at http://upperbounds.net
3817 //-----------------------------------------------------------------------------
3818 // File: 'ProggyClean.ttf' (41208 bytes)
3819 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
3820 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3821 //-----------------------------------------------------------------------------
3822 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
3823 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
3824 "2*>]b(MC;$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#"
3825 "`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"
3826 "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"
3827 "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"
3828 "*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)"
3829 "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"
3830 "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."
3831 "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"
3832 "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(,)"
3833 "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#"
3834 "'/###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"
3835 "_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"
3836 "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/"
3837 "/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"
3838 "%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&#"
3839 "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)("
3840 "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"
3841 "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"
3842 "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^-"
3843 "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-"
3844 "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"
3845 "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%"
3846 "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]"
3847 "%(?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"
3848 "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:"
3849 "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("
3850 "$/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<"
3851 "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'?"
3852 "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/;"
3853 ")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"
3854 "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("
3855 "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"
3856 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTGT5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
3857 "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<-"
3858 "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"
3859 "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"
3860 ".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@@"
3861 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
3862 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
3863 "@-W$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&#"
3864 "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#"
3865 "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"
3866 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoFDoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
3867 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
3868 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
3869 ":k$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+"
3870 "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*"
3871 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
3872 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
3873 "7aQC[K8d-(v6GI$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"
3874 "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"
3875 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
3876 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
3877 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
3878 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
3879 "^V'9;jY@;)br#q^YQpx:X#Te$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:"
3880 "+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%"
3881 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
3882 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
3883 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
3884 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
3885 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
3886 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
3887 "+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"
3888 "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"
3889 "?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"
3890 "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"
3891 ">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-$.QN'>"
3892 "[%$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"
3893 "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#"
3894 "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$"
3895 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
3896 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
3897 "1*c-(aY168o<`JsSbk-,1N;$>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"
3898 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
3899 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
3900 ";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&>"
3901 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
3902 "d<F&#*;G##.GY##2Sl##6`($#: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"
3903 "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$C#+E6C#"
3904 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
3905 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
3906 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
3907 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
3908 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
3909
GetDefaultCompressedFontDataTTFBase85()3910 static const char* GetDefaultCompressedFontDataTTFBase85()
3911 {
3912 return proggy_clean_ttf_compressed_data_base85;
3913 }
3914
3915 #endif // #ifndef IMGUI_DISABLE
3916