1 // dear imgui, v1.66 WIP
2 // (drawing and font code)
3
4 /*
5
6 Index of this file:
7
8 // [SECTION] STB libraries implementation
9 // [SECTION] Style functions
10 // [SECTION] ImDrawList
11 // [SECTION] ImDrawData
12 // [SECTION] Helpers ShadeVertsXXX functions
13 // [SECTION] ImFontConfig
14 // [SECTION] ImFontAtlas
15 // [SECTION] ImFontAtlas glyph ranges helpers + GlyphRangesBuilder
16 // [SECTION] ImFont
17 // [SECTION] Internal Render Helpers
18 // [SECTION] Decompression code
19 // [SECTION] Default font data (ProggyClean.ttf)
20
21 */
22
23 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
24 #define _CRT_SECURE_NO_WARNINGS
25 #endif
26
27 #include "imgui.h"
28 #ifndef IMGUI_DEFINE_MATH_OPERATORS
29 #define IMGUI_DEFINE_MATH_OPERATORS
30 #endif
31 #include "imgui_internal.h"
32
33 #include <stdio.h> // vsnprintf, sscanf, printf
34 #if !defined(alloca)
35 #if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__)
36 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
37 #elif defined(_WIN32)
38 #include <malloc.h> // alloca
39 #if !defined(alloca)
40 #define alloca _alloca // for clang with MS Codegen
41 #endif
42 #else
43 #include <stdlib.h> // alloca
44 #endif
45 #endif
46
47 // Visual Studio warnings
48 #ifdef _MSC_VER
49 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
50 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
51 #endif
52
53 // Clang/GCC warnings with -Weverything
54 #ifdef __clang__
55 #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
56 #pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
57 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it.
58 #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
59 #if __has_warning("-Wcomma")
60 #pragma clang diagnostic ignored "-Wcomma" // warning : possible misuse of comma operator here //
61 #endif
62 #if __has_warning("-Wreserved-id-macro")
63 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier //
64 #endif
65 #if __has_warning("-Wdouble-promotion")
66 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
67 #endif
68 #if __has_warning("-Wzero-as-null-pointer-constant")
69 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
70 #endif
71 #if __has_warning("-Wcast-qual")
72 #pragma clang diagnostic ignored "-Wcast-qual"
73 #endif
74 #pragma clang diagnostic ignored "-Wpadded"
75 #elif defined(__GNUC__)
76 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
77 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
78 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
79 #if __GNUC__ >= 8
80 #pragma GCC diagnostic ignored "-Wclass-memaccess" // warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
81 #endif
82 #endif
83
84 //-------------------------------------------------------------------------
85 // [SECTION] STB libraries implementation
86 //-------------------------------------------------------------------------
87
88 // Compile time options:
89 //#define IMGUI_STB_NAMESPACE ImGuiStb
90 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
91 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
92 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
93 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
94
95 #ifdef IMGUI_STB_NAMESPACE
96 namespace IMGUI_STB_NAMESPACE
97 {
98 #endif
99
100 #ifdef _MSC_VER
101 #pragma warning (push)
102 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
103 #endif
104
105 #ifdef __clang__
106 #pragma clang diagnostic push
107 #pragma clang diagnostic ignored "-Wunused-function"
108 #pragma clang diagnostic ignored "-Wmissing-prototypes"
109 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
110 #pragma clang diagnostic ignored "-Wcast-qual" // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
111 #endif
112
113 #ifdef __GNUC__
114 #pragma GCC diagnostic push
115 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
116 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
117 #endif
118
119 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
120 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
121 #define STBRP_STATIC
122 #define STBRP_ASSERT(x) IM_ASSERT(x)
123 #define STBRP_SORT ImQsort
124 #define STB_RECT_PACK_IMPLEMENTATION
125 #endif
126 #ifdef IMGUI_STB_RECT_PACK_FILENAME
127 #include IMGUI_STB_RECT_PACK_FILENAME
128 #else
129 #include "imstb_rectpack.h"
130 #endif
131 #endif
132
133 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
134 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
135 #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x))
136 #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x))
137 #define STBTT_assert(x) IM_ASSERT(x)
138 #define STBTT_fmod(x,y) ImFmod(x,y)
139 #define STBTT_sqrt(x) ImSqrt(x)
140 #define STBTT_pow(x,y) ImPow(x,y)
141 #define STBTT_fabs(x) ImFabs(x)
142 #define STBTT_ifloor(x) ((int)ImFloorStd(x))
143 #define STBTT_iceil(x) ((int)ImCeil(x))
144 #define STBTT_STATIC
145 #define STB_TRUETYPE_IMPLEMENTATION
146 #else
147 #define STBTT_DEF extern
148 #endif
149 #ifdef IMGUI_STB_TRUETYPE_FILENAME
150 #include IMGUI_STB_TRUETYPE_FILENAME
151 #else
152 #include "imstb_truetype.h"
153 #endif
154 #endif
155
156 #ifdef __GNUC__
157 #pragma GCC diagnostic pop
158 #endif
159
160 #ifdef __clang__
161 #pragma clang diagnostic pop
162 #endif
163
164 #ifdef _MSC_VER
165 #pragma warning (pop)
166 #endif
167
168 #ifdef IMGUI_STB_NAMESPACE
169 } // namespace ImGuiStb
170 using namespace IMGUI_STB_NAMESPACE;
171 #endif
172
173 //-----------------------------------------------------------------------------
174 // [SECTION] Style functions
175 //-----------------------------------------------------------------------------
176
StyleColorsDark(ImGuiStyle * dst)177 void ImGui::StyleColorsDark(ImGuiStyle* dst)
178 {
179 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
180 ImVec4* colors = style->Colors;
181
182 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
183 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
184 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
185 colors[ImGuiCol_ChildBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.00f);
186 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
187 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
188 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
189 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
190 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
191 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
192 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
193 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
194 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
195 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
196 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
197 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
198 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
199 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
200 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
201 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
202 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
203 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
204 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
205 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
206 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
207 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
208 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
209 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
210 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
211 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
212 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
213 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
214 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
215 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
216 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
217 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
218 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
219 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
220 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
221 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
222 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
223 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
224 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
225 }
226
StyleColorsClassic(ImGuiStyle * dst)227 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
228 {
229 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
230 ImVec4* colors = style->Colors;
231
232 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
233 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
234 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
235 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
236 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
237 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
238 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
239 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
240 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
241 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
242 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
243 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
244 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
245 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
246 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
247 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
248 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
249 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
250 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
251 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
252 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
253 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
254 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
255 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
256 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
257 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
258 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
259 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
260 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
261 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
262 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
263 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
264 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
265 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
266 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
267 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
268 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
269 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
270 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
271 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
272 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
273 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
274 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
275 }
276
277 // Those light colors are better suited with a thicker font than the default one + FrameBorder
StyleColorsLight(ImGuiStyle * dst)278 void ImGui::StyleColorsLight(ImGuiStyle* dst)
279 {
280 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
281 ImVec4* colors = style->Colors;
282
283 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
284 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
285 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
286 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
287 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
288 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
289 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
290 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
291 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
292 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
293 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
294 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
295 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
296 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
297 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
298 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
299 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
300 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
301 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
302 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
303 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
304 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
305 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
306 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
307 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
308 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
309 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
310 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
311 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
312 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
313 colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
314 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
315 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
316 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
317 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
318 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
319 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
320 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
321 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
322 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
323 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
324 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
325 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
326 }
327
328 //-----------------------------------------------------------------------------
329 // ImDrawList
330 //-----------------------------------------------------------------------------
331
ImDrawListSharedData()332 ImDrawListSharedData::ImDrawListSharedData()
333 {
334 Font = NULL;
335 FontSize = 0.0f;
336 CurveTessellationTol = 0.0f;
337 ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
338
339 // Const data
340 for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
341 {
342 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
343 CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a));
344 }
345 }
346
Clear()347 void ImDrawList::Clear()
348 {
349 CmdBuffer.resize(0);
350 IdxBuffer.resize(0);
351 VtxBuffer.resize(0);
352 Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill;
353 _VtxCurrentIdx = 0;
354 _VtxWritePtr = NULL;
355 _IdxWritePtr = NULL;
356 _ClipRectStack.resize(0);
357 _TextureIdStack.resize(0);
358 _Path.resize(0);
359 _ChannelsCurrent = 0;
360 _ChannelsCount = 1;
361 // NB: Do not clear channels so our allocations are re-used after the first frame.
362 }
363
ClearFreeMemory()364 void ImDrawList::ClearFreeMemory()
365 {
366 CmdBuffer.clear();
367 IdxBuffer.clear();
368 VtxBuffer.clear();
369 _VtxCurrentIdx = 0;
370 _VtxWritePtr = NULL;
371 _IdxWritePtr = NULL;
372 _ClipRectStack.clear();
373 _TextureIdStack.clear();
374 _Path.clear();
375 _ChannelsCurrent = 0;
376 _ChannelsCount = 1;
377 for (int i = 0; i < _Channels.Size; i++)
378 {
379 if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again
380 _Channels[i].CmdBuffer.clear();
381 _Channels[i].IdxBuffer.clear();
382 }
383 _Channels.clear();
384 }
385
CloneOutput() const386 ImDrawList* ImDrawList::CloneOutput() const
387 {
388 ImDrawList* dst = IM_NEW(ImDrawList(NULL));
389 dst->CmdBuffer = CmdBuffer;
390 dst->IdxBuffer = IdxBuffer;
391 dst->VtxBuffer = VtxBuffer;
392 dst->Flags = Flags;
393 return dst;
394 }
395
396 // Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
397 #define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : _Data->ClipRectFullscreen)
398 #define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL)
399
AddDrawCmd()400 void ImDrawList::AddDrawCmd()
401 {
402 ImDrawCmd draw_cmd;
403 draw_cmd.ClipRect = GetCurrentClipRect();
404 draw_cmd.TextureId = GetCurrentTextureId();
405
406 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
407 CmdBuffer.push_back(draw_cmd);
408 }
409
AddCallback(ImDrawCallback callback,void * callback_data)410 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
411 {
412 ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
413 if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL)
414 {
415 AddDrawCmd();
416 current_cmd = &CmdBuffer.back();
417 }
418 current_cmd->UserCallback = callback;
419 current_cmd->UserCallbackData = callback_data;
420
421 AddDrawCmd(); // Force a new command after us (see comment below)
422 }
423
424 // 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.
425 // 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.
UpdateClipRect()426 void ImDrawList::UpdateClipRect()
427 {
428 // If current command is used with different settings we need to add a new command
429 const ImVec4 curr_clip_rect = GetCurrentClipRect();
430 ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL;
431 if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL)
432 {
433 AddDrawCmd();
434 return;
435 }
436
437 // Try to merge with previous command if it matches, else use current command
438 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
439 if (curr_cmd->ElemCount == 0 && prev_cmd && memcmp(&prev_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) == 0 && prev_cmd->TextureId == GetCurrentTextureId() && prev_cmd->UserCallback == NULL)
440 CmdBuffer.pop_back();
441 else
442 curr_cmd->ClipRect = curr_clip_rect;
443 }
444
UpdateTextureID()445 void ImDrawList::UpdateTextureID()
446 {
447 // If current command is used with different settings we need to add a new command
448 const ImTextureID curr_texture_id = GetCurrentTextureId();
449 ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
450 if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL)
451 {
452 AddDrawCmd();
453 return;
454 }
455
456 // Try to merge with previous command if it matches, else use current command
457 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
458 if (curr_cmd->ElemCount == 0 && prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL)
459 CmdBuffer.pop_back();
460 else
461 curr_cmd->TextureId = curr_texture_id;
462 }
463
464 #undef GetCurrentClipRect
465 #undef GetCurrentTextureId
466
467 // 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)468 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
469 {
470 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
471 if (intersect_with_current_clip_rect && _ClipRectStack.Size)
472 {
473 ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1];
474 if (cr.x < current.x) cr.x = current.x;
475 if (cr.y < current.y) cr.y = current.y;
476 if (cr.z > current.z) cr.z = current.z;
477 if (cr.w > current.w) cr.w = current.w;
478 }
479 cr.z = ImMax(cr.x, cr.z);
480 cr.w = ImMax(cr.y, cr.w);
481
482 _ClipRectStack.push_back(cr);
483 UpdateClipRect();
484 }
485
PushClipRectFullScreen()486 void ImDrawList::PushClipRectFullScreen()
487 {
488 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
489 }
490
PopClipRect()491 void ImDrawList::PopClipRect()
492 {
493 IM_ASSERT(_ClipRectStack.Size > 0);
494 _ClipRectStack.pop_back();
495 UpdateClipRect();
496 }
497
PushTextureID(ImTextureID texture_id)498 void ImDrawList::PushTextureID(ImTextureID texture_id)
499 {
500 _TextureIdStack.push_back(texture_id);
501 UpdateTextureID();
502 }
503
PopTextureID()504 void ImDrawList::PopTextureID()
505 {
506 IM_ASSERT(_TextureIdStack.Size > 0);
507 _TextureIdStack.pop_back();
508 UpdateTextureID();
509 }
510
ChannelsSplit(int channels_count)511 void ImDrawList::ChannelsSplit(int channels_count)
512 {
513 IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1);
514 int old_channels_count = _Channels.Size;
515 if (old_channels_count < channels_count)
516 _Channels.resize(channels_count);
517 _ChannelsCount = channels_count;
518
519 // _Channels[] (24/32 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer
520 // 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.
521 // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer
522 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
523 for (int i = 1; i < channels_count; i++)
524 {
525 if (i >= old_channels_count)
526 {
527 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
528 }
529 else
530 {
531 _Channels[i].CmdBuffer.resize(0);
532 _Channels[i].IdxBuffer.resize(0);
533 }
534 if (_Channels[i].CmdBuffer.Size == 0)
535 {
536 ImDrawCmd draw_cmd;
537 draw_cmd.ClipRect = _ClipRectStack.back();
538 draw_cmd.TextureId = _TextureIdStack.back();
539 _Channels[i].CmdBuffer.push_back(draw_cmd);
540 }
541 }
542 }
543
ChannelsMerge()544 void ImDrawList::ChannelsMerge()
545 {
546 // 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.
547 if (_ChannelsCount <= 1)
548 return;
549
550 ChannelsSetCurrent(0);
551 if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0)
552 CmdBuffer.pop_back();
553
554 int new_cmd_buffer_count = 0, new_idx_buffer_count = 0;
555 for (int i = 1; i < _ChannelsCount; i++)
556 {
557 ImDrawChannel& ch = _Channels[i];
558 if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0)
559 ch.CmdBuffer.pop_back();
560 new_cmd_buffer_count += ch.CmdBuffer.Size;
561 new_idx_buffer_count += ch.IdxBuffer.Size;
562 }
563 CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count);
564 IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count);
565
566 ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count;
567 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count;
568 for (int i = 1; i < _ChannelsCount; i++)
569 {
570 ImDrawChannel& ch = _Channels[i];
571 if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
572 if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; }
573 }
574 UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
575 _ChannelsCount = 1;
576 }
577
ChannelsSetCurrent(int idx)578 void ImDrawList::ChannelsSetCurrent(int idx)
579 {
580 IM_ASSERT(idx < _ChannelsCount);
581 if (_ChannelsCurrent == idx) return;
582 memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times
583 memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer));
584 _ChannelsCurrent = idx;
585 memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer));
586 memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer));
587 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size;
588 }
589
590 // NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
PrimReserve(int idx_count,int vtx_count)591 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
592 {
593 ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1];
594 draw_cmd.ElemCount += idx_count;
595
596 int vtx_buffer_old_size = VtxBuffer.Size;
597 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
598 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
599
600 int idx_buffer_old_size = IdxBuffer.Size;
601 IdxBuffer.resize(idx_buffer_old_size + idx_count);
602 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
603 }
604
605 // Fully unrolled with inline call to keep our debug builds decently fast.
PrimRect(const ImVec2 & a,const ImVec2 & c,ImU32 col)606 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
607 {
608 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
609 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
610 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
611 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
612 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
613 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
614 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
615 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
616 _VtxWritePtr += 4;
617 _VtxCurrentIdx += 4;
618 _IdxWritePtr += 6;
619 }
620
PrimRectUV(const ImVec2 & a,const ImVec2 & c,const ImVec2 & uv_a,const ImVec2 & uv_c,ImU32 col)621 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
622 {
623 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);
624 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
625 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
626 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
627 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
628 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
629 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
630 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
631 _VtxWritePtr += 4;
632 _VtxCurrentIdx += 4;
633 _IdxWritePtr += 6;
634 }
635
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)636 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)
637 {
638 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
639 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
640 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
641 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
642 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
643 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
644 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
645 _VtxWritePtr += 4;
646 _VtxCurrentIdx += 4;
647 _IdxWritePtr += 6;
648 }
649
650 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
AddPolyline(const ImVec2 * points,const int points_count,ImU32 col,bool closed,float thickness)651 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
652 {
653 if (points_count < 2)
654 return;
655
656 const ImVec2 uv = _Data->TexUvWhitePixel;
657
658 int count = points_count;
659 if (!closed)
660 count = points_count-1;
661
662 const bool thick_line = thickness > 1.0f;
663 if (Flags & ImDrawListFlags_AntiAliasedLines)
664 {
665 // Anti-aliased stroke
666 const float AA_SIZE = 1.0f;
667 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
668
669 const int idx_count = thick_line ? count*18 : count*12;
670 const int vtx_count = thick_line ? points_count*4 : points_count*3;
671 PrimReserve(idx_count, vtx_count);
672
673 // Temporary buffer
674 ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2));
675 ImVec2* temp_points = temp_normals + points_count;
676
677 for (int i1 = 0; i1 < count; i1++)
678 {
679 const int i2 = (i1+1) == points_count ? 0 : i1+1;
680 ImVec2 diff = points[i2] - points[i1];
681 diff *= ImInvLength(diff, 1.0f);
682 temp_normals[i1].x = diff.y;
683 temp_normals[i1].y = -diff.x;
684 }
685 if (!closed)
686 temp_normals[points_count-1] = temp_normals[points_count-2];
687
688 if (!thick_line)
689 {
690 if (!closed)
691 {
692 temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
693 temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
694 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE;
695 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE;
696 }
697
698 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
699 unsigned int idx1 = _VtxCurrentIdx;
700 for (int i1 = 0; i1 < count; i1++)
701 {
702 const int i2 = (i1+1) == points_count ? 0 : i1+1;
703 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3;
704
705 // Average normals
706 ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
707 float dmr2 = dm.x*dm.x + dm.y*dm.y;
708 if (dmr2 > 0.000001f)
709 {
710 float scale = 1.0f / dmr2;
711 if (scale > 100.0f) scale = 100.0f;
712 dm *= scale;
713 }
714 dm *= AA_SIZE;
715 temp_points[i2*2+0] = points[i2] + dm;
716 temp_points[i2*2+1] = points[i2] - dm;
717
718 // Add indexes
719 _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
720 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0);
721 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
722 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1);
723 _IdxWritePtr += 12;
724
725 idx1 = idx2;
726 }
727
728 // Add vertexes
729 for (int i = 0; i < points_count; i++)
730 {
731 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
732 _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;
733 _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans;
734 _VtxWritePtr += 3;
735 }
736 }
737 else
738 {
739 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
740 if (!closed)
741 {
742 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
743 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
744 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
745 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
746 temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
747 temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness);
748 temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness);
749 temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
750 }
751
752 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
753 unsigned int idx1 = _VtxCurrentIdx;
754 for (int i1 = 0; i1 < count; i1++)
755 {
756 const int i2 = (i1+1) == points_count ? 0 : i1+1;
757 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4;
758
759 // Average normals
760 ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
761 float dmr2 = dm.x*dm.x + dm.y*dm.y;
762 if (dmr2 > 0.000001f)
763 {
764 float scale = 1.0f / dmr2;
765 if (scale > 100.0f) scale = 100.0f;
766 dm *= scale;
767 }
768 ImVec2 dm_out = dm * (half_inner_thickness + AA_SIZE);
769 ImVec2 dm_in = dm * half_inner_thickness;
770 temp_points[i2*4+0] = points[i2] + dm_out;
771 temp_points[i2*4+1] = points[i2] + dm_in;
772 temp_points[i2*4+2] = points[i2] - dm_in;
773 temp_points[i2*4+3] = points[i2] - dm_out;
774
775 // Add indexes
776 _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
777 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1);
778 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
779 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1);
780 _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3);
781 _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2);
782 _IdxWritePtr += 18;
783
784 idx1 = idx2;
785 }
786
787 // Add vertexes
788 for (int i = 0; i < points_count; i++)
789 {
790 _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans;
791 _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
792 _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
793 _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans;
794 _VtxWritePtr += 4;
795 }
796 }
797 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
798 }
799 else
800 {
801 // Non Anti-aliased Stroke
802 const int idx_count = count*6;
803 const int vtx_count = count*4; // FIXME-OPT: Not sharing edges
804 PrimReserve(idx_count, vtx_count);
805
806 for (int i1 = 0; i1 < count; i1++)
807 {
808 const int i2 = (i1+1) == points_count ? 0 : i1+1;
809 const ImVec2& p1 = points[i1];
810 const ImVec2& p2 = points[i2];
811 ImVec2 diff = p2 - p1;
812 diff *= ImInvLength(diff, 1.0f);
813
814 const float dx = diff.x * (thickness * 0.5f);
815 const float dy = diff.y * (thickness * 0.5f);
816 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
817 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
818 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
819 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
820 _VtxWritePtr += 4;
821
822 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2);
823 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3);
824 _IdxWritePtr += 6;
825 _VtxCurrentIdx += 4;
826 }
827 }
828 }
829
AddConvexPolyFilled(const ImVec2 * points,const int points_count,ImU32 col)830 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
831 {
832 if (points_count < 3)
833 return;
834
835 const ImVec2 uv = _Data->TexUvWhitePixel;
836
837 if (Flags & ImDrawListFlags_AntiAliasedFill)
838 {
839 // Anti-aliased Fill
840 const float AA_SIZE = 1.0f;
841 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
842 const int idx_count = (points_count-2)*3 + points_count*6;
843 const int vtx_count = (points_count*2);
844 PrimReserve(idx_count, vtx_count);
845
846 // Add indexes for fill
847 unsigned int vtx_inner_idx = _VtxCurrentIdx;
848 unsigned int vtx_outer_idx = _VtxCurrentIdx+1;
849 for (int i = 2; i < points_count; i++)
850 {
851 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1));
852 _IdxWritePtr += 3;
853 }
854
855 // Compute normals
856 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2));
857 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
858 {
859 const ImVec2& p0 = points[i0];
860 const ImVec2& p1 = points[i1];
861 ImVec2 diff = p1 - p0;
862 diff *= ImInvLength(diff, 1.0f);
863 temp_normals[i0].x = diff.y;
864 temp_normals[i0].y = -diff.x;
865 }
866
867 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
868 {
869 // Average normals
870 const ImVec2& n0 = temp_normals[i0];
871 const ImVec2& n1 = temp_normals[i1];
872 ImVec2 dm = (n0 + n1) * 0.5f;
873 float dmr2 = dm.x*dm.x + dm.y*dm.y;
874 if (dmr2 > 0.000001f)
875 {
876 float scale = 1.0f / dmr2;
877 if (scale > 100.0f) scale = 100.0f;
878 dm *= scale;
879 }
880 dm *= AA_SIZE * 0.5f;
881
882 // Add vertices
883 _VtxWritePtr[0].pos = (points[i1] - dm); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
884 _VtxWritePtr[1].pos = (points[i1] + dm); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
885 _VtxWritePtr += 2;
886
887 // Add indexes for fringes
888 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1));
889 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1));
890 _IdxWritePtr += 6;
891 }
892 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
893 }
894 else
895 {
896 // Non Anti-aliased Fill
897 const int idx_count = (points_count-2)*3;
898 const int vtx_count = points_count;
899 PrimReserve(idx_count, vtx_count);
900 for (int i = 0; i < vtx_count; i++)
901 {
902 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
903 _VtxWritePtr++;
904 }
905 for (int i = 2; i < points_count; i++)
906 {
907 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i);
908 _IdxWritePtr += 3;
909 }
910 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
911 }
912 }
913
PathArcToFast(const ImVec2 & centre,float radius,int a_min_of_12,int a_max_of_12)914 void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12)
915 {
916 if (radius == 0.0f || a_min_of_12 > a_max_of_12)
917 {
918 _Path.push_back(centre);
919 return;
920 }
921 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
922 for (int a = a_min_of_12; a <= a_max_of_12; a++)
923 {
924 const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
925 _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
926 }
927 }
928
PathArcTo(const ImVec2 & centre,float radius,float a_min,float a_max,int num_segments)929 void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments)
930 {
931 if (radius == 0.0f)
932 {
933 _Path.push_back(centre);
934 return;
935 }
936 _Path.reserve(_Path.Size + (num_segments + 1));
937 for (int i = 0; i <= num_segments; i++)
938 {
939 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
940 _Path.push_back(ImVec2(centre.x + ImCos(a) * radius, centre.y + ImSin(a) * radius));
941 }
942 }
943
PathBezierToCasteljau(ImVector<ImVec2> * path,float x1,float y1,float x2,float y2,float x3,float y3,float x4,float y4,float tess_tol,int level)944 static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
945 {
946 float dx = x4 - x1;
947 float dy = y4 - y1;
948 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
949 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
950 d2 = (d2 >= 0) ? d2 : -d2;
951 d3 = (d3 >= 0) ? d3 : -d3;
952 if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy))
953 {
954 path->push_back(ImVec2(x4, y4));
955 }
956 else if (level < 10)
957 {
958 float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f;
959 float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f;
960 float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f;
961 float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f;
962 float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f;
963 float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f;
964
965 PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1);
966 PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1);
967 }
968 }
969
PathBezierCurveTo(const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,int num_segments)970 void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
971 {
972 ImVec2 p1 = _Path.back();
973 if (num_segments == 0)
974 {
975 // Auto-tessellated
976 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0);
977 }
978 else
979 {
980 float t_step = 1.0f / (float)num_segments;
981 for (int i_step = 1; i_step <= num_segments; i_step++)
982 {
983 float t = t_step * i_step;
984 float u = 1.0f - t;
985 float w1 = u*u*u;
986 float w2 = 3*u*u*t;
987 float w3 = 3*u*t*t;
988 float w4 = t*t*t;
989 _Path.push_back(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));
990 }
991 }
992 }
993
PathRect(const ImVec2 & a,const ImVec2 & b,float rounding,int rounding_corners)994 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
995 {
996 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);
997 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);
998
999 if (rounding <= 0.0f || rounding_corners == 0)
1000 {
1001 PathLineTo(a);
1002 PathLineTo(ImVec2(b.x, a.y));
1003 PathLineTo(b);
1004 PathLineTo(ImVec2(a.x, b.y));
1005 }
1006 else
1007 {
1008 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1009 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1010 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1011 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1012 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1013 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1014 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1015 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1016 }
1017 }
1018
AddLine(const ImVec2 & a,const ImVec2 & b,ImU32 col,float thickness)1019 void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
1020 {
1021 if ((col & IM_COL32_A_MASK) == 0)
1022 return;
1023 PathLineTo(a + ImVec2(0.5f,0.5f));
1024 PathLineTo(b + ImVec2(0.5f,0.5f));
1025 PathStroke(col, false, thickness);
1026 }
1027
1028 // a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly.
AddRect(const ImVec2 & a,const ImVec2 & b,ImU32 col,float rounding,int rounding_corners_flags,float thickness)1029 void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness)
1030 {
1031 if ((col & IM_COL32_A_MASK) == 0)
1032 return;
1033 if (Flags & ImDrawListFlags_AntiAliasedLines)
1034 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags);
1035 else
1036 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.49f,0.49f), rounding, rounding_corners_flags); // Better looking lower-right corner and rounded non-AA shapes.
1037 PathStroke(col, true, thickness);
1038 }
1039
AddRectFilled(const ImVec2 & a,const ImVec2 & b,ImU32 col,float rounding,int rounding_corners_flags)1040 void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags)
1041 {
1042 if ((col & IM_COL32_A_MASK) == 0)
1043 return;
1044 if (rounding > 0.0f)
1045 {
1046 PathRect(a, b, rounding, rounding_corners_flags);
1047 PathFillConvex(col);
1048 }
1049 else
1050 {
1051 PrimReserve(6, 4);
1052 PrimRect(a, b, col);
1053 }
1054 }
1055
AddRectFilledMultiColor(const ImVec2 & a,const ImVec2 & c,ImU32 col_upr_left,ImU32 col_upr_right,ImU32 col_bot_right,ImU32 col_bot_left)1056 void ImDrawList::AddRectFilledMultiColor(const ImVec2& a, const ImVec2& c, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1057 {
1058 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1059 return;
1060
1061 const ImVec2 uv = _Data->TexUvWhitePixel;
1062 PrimReserve(6, 4);
1063 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2));
1064 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3));
1065 PrimWriteVtx(a, uv, col_upr_left);
1066 PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right);
1067 PrimWriteVtx(c, uv, col_bot_right);
1068 PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left);
1069 }
1070
AddQuad(const ImVec2 & a,const ImVec2 & b,const ImVec2 & c,const ImVec2 & d,ImU32 col,float thickness)1071 void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness)
1072 {
1073 if ((col & IM_COL32_A_MASK) == 0)
1074 return;
1075
1076 PathLineTo(a);
1077 PathLineTo(b);
1078 PathLineTo(c);
1079 PathLineTo(d);
1080 PathStroke(col, true, thickness);
1081 }
1082
AddQuadFilled(const ImVec2 & a,const ImVec2 & b,const ImVec2 & c,const ImVec2 & d,ImU32 col)1083 void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col)
1084 {
1085 if ((col & IM_COL32_A_MASK) == 0)
1086 return;
1087
1088 PathLineTo(a);
1089 PathLineTo(b);
1090 PathLineTo(c);
1091 PathLineTo(d);
1092 PathFillConvex(col);
1093 }
1094
AddTriangle(const ImVec2 & a,const ImVec2 & b,const ImVec2 & c,ImU32 col,float thickness)1095 void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
1096 {
1097 if ((col & IM_COL32_A_MASK) == 0)
1098 return;
1099
1100 PathLineTo(a);
1101 PathLineTo(b);
1102 PathLineTo(c);
1103 PathStroke(col, true, thickness);
1104 }
1105
AddTriangleFilled(const ImVec2 & a,const ImVec2 & b,const ImVec2 & c,ImU32 col)1106 void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)
1107 {
1108 if ((col & IM_COL32_A_MASK) == 0)
1109 return;
1110
1111 PathLineTo(a);
1112 PathLineTo(b);
1113 PathLineTo(c);
1114 PathFillConvex(col);
1115 }
1116
AddCircle(const ImVec2 & centre,float radius,ImU32 col,int num_segments,float thickness)1117 void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
1118 {
1119 if ((col & IM_COL32_A_MASK) == 0)
1120 return;
1121
1122 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1123 PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments);
1124 PathStroke(col, true, thickness);
1125 }
1126
AddCircleFilled(const ImVec2 & centre,float radius,ImU32 col,int num_segments)1127 void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
1128 {
1129 if ((col & IM_COL32_A_MASK) == 0)
1130 return;
1131
1132 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1133 PathArcTo(centre, radius, 0.0f, a_max, num_segments);
1134 PathFillConvex(col);
1135 }
1136
AddBezierCurve(const ImVec2 & pos0,const ImVec2 & cp0,const ImVec2 & cp1,const ImVec2 & pos1,ImU32 col,float thickness,int num_segments)1137 void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
1138 {
1139 if ((col & IM_COL32_A_MASK) == 0)
1140 return;
1141
1142 PathLineTo(pos0);
1143 PathBezierCurveTo(cp0, cp1, pos1, num_segments);
1144 PathStroke(col, false, thickness);
1145 }
1146
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)1147 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)
1148 {
1149 if ((col & IM_COL32_A_MASK) == 0)
1150 return;
1151
1152 if (text_end == NULL)
1153 text_end = text_begin + strlen(text_begin);
1154 if (text_begin == text_end)
1155 return;
1156
1157 // Pull default font/size from the shared ImDrawListSharedData instance
1158 if (font == NULL)
1159 font = _Data->Font;
1160 if (font_size == 0.0f)
1161 font_size = _Data->FontSize;
1162
1163 IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1164
1165 ImVec4 clip_rect = _ClipRectStack.back();
1166 if (cpu_fine_clip_rect)
1167 {
1168 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1169 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1170 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1171 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1172 }
1173 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1174 }
1175
AddText(const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end)1176 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1177 {
1178 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1179 }
1180
AddImage(ImTextureID user_texture_id,const ImVec2 & a,const ImVec2 & b,const ImVec2 & uv_a,const ImVec2 & uv_b,ImU32 col)1181 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
1182 {
1183 if ((col & IM_COL32_A_MASK) == 0)
1184 return;
1185
1186 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1187 if (push_texture_id)
1188 PushTextureID(user_texture_id);
1189
1190 PrimReserve(6, 4);
1191 PrimRectUV(a, b, uv_a, uv_b, col);
1192
1193 if (push_texture_id)
1194 PopTextureID();
1195 }
1196
AddImageQuad(ImTextureID user_texture_id,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)1197 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, 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)
1198 {
1199 if ((col & IM_COL32_A_MASK) == 0)
1200 return;
1201
1202 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1203 if (push_texture_id)
1204 PushTextureID(user_texture_id);
1205
1206 PrimReserve(6, 4);
1207 PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
1208
1209 if (push_texture_id)
1210 PopTextureID();
1211 }
1212
AddImageRounded(ImTextureID user_texture_id,const ImVec2 & a,const ImVec2 & b,const ImVec2 & uv_a,const ImVec2 & uv_b,ImU32 col,float rounding,int rounding_corners)1213 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners)
1214 {
1215 if ((col & IM_COL32_A_MASK) == 0)
1216 return;
1217
1218 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1219 {
1220 AddImage(user_texture_id, a, b, uv_a, uv_b, col);
1221 return;
1222 }
1223
1224 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1225 if (push_texture_id)
1226 PushTextureID(user_texture_id);
1227
1228 int vert_start_idx = VtxBuffer.Size;
1229 PathRect(a, b, rounding, rounding_corners);
1230 PathFillConvex(col);
1231 int vert_end_idx = VtxBuffer.Size;
1232 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, a, b, uv_a, uv_b, true);
1233
1234 if (push_texture_id)
1235 PopTextureID();
1236 }
1237
1238 //-----------------------------------------------------------------------------
1239 // [SECTION] ImDrawData
1240 //-----------------------------------------------------------------------------
1241
1242 // 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()1243 void ImDrawData::DeIndexAllBuffers()
1244 {
1245 ImVector<ImDrawVert> new_vtx_buffer;
1246 TotalVtxCount = TotalIdxCount = 0;
1247 for (int i = 0; i < CmdListsCount; i++)
1248 {
1249 ImDrawList* cmd_list = CmdLists[i];
1250 if (cmd_list->IdxBuffer.empty())
1251 continue;
1252 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1253 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1254 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1255 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1256 cmd_list->IdxBuffer.resize(0);
1257 TotalVtxCount += cmd_list->VtxBuffer.Size;
1258 }
1259 }
1260
1261 // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
ScaleClipRects(const ImVec2 & scale)1262 void ImDrawData::ScaleClipRects(const ImVec2& scale)
1263 {
1264 for (int i = 0; i < CmdListsCount; i++)
1265 {
1266 ImDrawList* cmd_list = CmdLists[i];
1267 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1268 {
1269 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1270 cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y);
1271 }
1272 }
1273 }
1274
1275 //-----------------------------------------------------------------------------
1276 // [SECTION] Helpers ShadeVertsXXX functions
1277 //-----------------------------------------------------------------------------
1278
1279 // 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)1280 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1281 {
1282 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1283 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1284 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1285 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1286 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1287 {
1288 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1289 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1290 int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
1291 int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
1292 int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
1293 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1294 }
1295 }
1296
1297 // 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)1298 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)
1299 {
1300 const ImVec2 size = b - a;
1301 const ImVec2 uv_size = uv_b - uv_a;
1302 const ImVec2 scale = ImVec2(
1303 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1304 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1305
1306 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1307 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1308 if (clamp)
1309 {
1310 const ImVec2 min = ImMin(uv_a, uv_b);
1311 const ImVec2 max = ImMax(uv_a, uv_b);
1312 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1313 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1314 }
1315 else
1316 {
1317 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1318 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1319 }
1320 }
1321
1322 //-----------------------------------------------------------------------------
1323 // [SECTION] ImFontConfig
1324 //-----------------------------------------------------------------------------
1325
ImFontConfig()1326 ImFontConfig::ImFontConfig()
1327 {
1328 FontData = NULL;
1329 FontDataSize = 0;
1330 FontDataOwnedByAtlas = true;
1331 FontNo = 0;
1332 SizePixels = 0.0f;
1333 OversampleH = 3;
1334 OversampleV = 1;
1335 PixelSnapH = false;
1336 GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1337 GlyphOffset = ImVec2(0.0f, 0.0f);
1338 GlyphRanges = NULL;
1339 GlyphMinAdvanceX = 0.0f;
1340 GlyphMaxAdvanceX = FLT_MAX;
1341 MergeMode = false;
1342 RasterizerFlags = 0x00;
1343 RasterizerMultiply = 1.0f;
1344 memset(Name, 0, sizeof(Name));
1345 DstFont = NULL;
1346 }
1347
1348 //-----------------------------------------------------------------------------
1349 // [SECTION] ImFontAtlas
1350 //-----------------------------------------------------------------------------
1351
1352 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1353 // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes.
1354 const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108;
1355 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1356 const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
1357 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1358 {
1359 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1360 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1361 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1362 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1363 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1364 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1365 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1366 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1367 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1368 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1369 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1370 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1371 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1372 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1373 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1374 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1375 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1376 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1377 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1378 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1379 " X..X - X...X - X...X - X..X X..X - - X........X "
1380 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1381 "------------ - X - X -X.....................X- ------------------"
1382 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1383 " - X..X X..X - "
1384 " - X.X X.X - "
1385 " - XX XX - "
1386 };
1387
1388 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1389 {
1390 // Pos ........ Size ......... Offset ......
1391 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1392 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1393 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1394 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1395 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1396 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1397 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1398 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1399 };
1400
ImFontAtlas()1401 ImFontAtlas::ImFontAtlas()
1402 {
1403 Locked = false;
1404 Flags = ImFontAtlasFlags_None;
1405 TexID = NULL;
1406 TexDesiredWidth = 0;
1407 TexGlyphPadding = 1;
1408
1409 TexPixelsAlpha8 = NULL;
1410 TexPixelsRGBA32 = NULL;
1411 TexWidth = TexHeight = 0;
1412 TexUvScale = ImVec2(0.0f, 0.0f);
1413 TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1414 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1415 CustomRectIds[n] = -1;
1416 }
1417
~ImFontAtlas()1418 ImFontAtlas::~ImFontAtlas()
1419 {
1420 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1421 Clear();
1422 }
1423
ClearInputData()1424 void ImFontAtlas::ClearInputData()
1425 {
1426 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1427 for (int i = 0; i < ConfigData.Size; i++)
1428 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1429 {
1430 ImGui::MemFree(ConfigData[i].FontData);
1431 ConfigData[i].FontData = NULL;
1432 }
1433
1434 // When clearing this we lose access to the font name and other information used to build the font.
1435 for (int i = 0; i < Fonts.Size; i++)
1436 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1437 {
1438 Fonts[i]->ConfigData = NULL;
1439 Fonts[i]->ConfigDataCount = 0;
1440 }
1441 ConfigData.clear();
1442 CustomRects.clear();
1443 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1444 CustomRectIds[n] = -1;
1445 }
1446
ClearTexData()1447 void ImFontAtlas::ClearTexData()
1448 {
1449 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1450 if (TexPixelsAlpha8)
1451 ImGui::MemFree(TexPixelsAlpha8);
1452 if (TexPixelsRGBA32)
1453 ImGui::MemFree(TexPixelsRGBA32);
1454 TexPixelsAlpha8 = NULL;
1455 TexPixelsRGBA32 = NULL;
1456 }
1457
ClearFonts()1458 void ImFontAtlas::ClearFonts()
1459 {
1460 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1461 for (int i = 0; i < Fonts.Size; i++)
1462 IM_DELETE(Fonts[i]);
1463 Fonts.clear();
1464 }
1465
Clear()1466 void ImFontAtlas::Clear()
1467 {
1468 ClearInputData();
1469 ClearTexData();
1470 ClearFonts();
1471 }
1472
GetTexDataAsAlpha8(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1473 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1474 {
1475 // Build atlas on demand
1476 if (TexPixelsAlpha8 == NULL)
1477 {
1478 if (ConfigData.empty())
1479 AddFontDefault();
1480 Build();
1481 }
1482
1483 *out_pixels = TexPixelsAlpha8;
1484 if (out_width) *out_width = TexWidth;
1485 if (out_height) *out_height = TexHeight;
1486 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1487 }
1488
GetTexDataAsRGBA32(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1489 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1490 {
1491 // Convert to RGBA32 format on demand
1492 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1493 if (!TexPixelsRGBA32)
1494 {
1495 unsigned char* pixels = NULL;
1496 GetTexDataAsAlpha8(&pixels, NULL, NULL);
1497 if (pixels)
1498 {
1499 TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4));
1500 const unsigned char* src = pixels;
1501 unsigned int* dst = TexPixelsRGBA32;
1502 for (int n = TexWidth * TexHeight; n > 0; n--)
1503 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1504 }
1505 }
1506
1507 *out_pixels = (unsigned char*)TexPixelsRGBA32;
1508 if (out_width) *out_width = TexWidth;
1509 if (out_height) *out_height = TexHeight;
1510 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1511 }
1512
AddFont(const ImFontConfig * font_cfg)1513 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1514 {
1515 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1516 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1517 IM_ASSERT(font_cfg->SizePixels > 0.0f);
1518
1519 // Create new font
1520 if (!font_cfg->MergeMode)
1521 Fonts.push_back(IM_NEW(ImFont));
1522 else
1523 IM_ASSERT(!Fonts.empty()); // 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.
1524
1525 ConfigData.push_back(*font_cfg);
1526 ImFontConfig& new_font_cfg = ConfigData.back();
1527 if (!new_font_cfg.DstFont)
1528 new_font_cfg.DstFont = Fonts.back();
1529 if (!new_font_cfg.FontDataOwnedByAtlas)
1530 {
1531 new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize);
1532 new_font_cfg.FontDataOwnedByAtlas = true;
1533 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1534 }
1535
1536 // Invalidate texture
1537 ClearTexData();
1538 return new_font_cfg.DstFont;
1539 }
1540
1541 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1542 static unsigned int stb_decompress_length(const unsigned char *input);
1543 static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length);
1544 static const char* GetDefaultCompressedFontDataTTFBase85();
Decode85Byte(char c)1545 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
Decode85(const unsigned char * src,unsigned char * dst)1546 static void Decode85(const unsigned char* src, unsigned char* dst)
1547 {
1548 while (*src)
1549 {
1550 unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4]))));
1551 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.
1552 src += 5;
1553 dst += 4;
1554 }
1555 }
1556
1557 // Load embedded ProggyClean.ttf at size 13, disable oversampling
AddFontDefault(const ImFontConfig * font_cfg_template)1558 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1559 {
1560 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1561 if (!font_cfg_template)
1562 {
1563 font_cfg.OversampleH = font_cfg.OversampleV = 1;
1564 font_cfg.PixelSnapH = true;
1565 }
1566 if (font_cfg.Name[0] == '\0') strcpy(font_cfg.Name, "ProggyClean.ttf, 13px");
1567 if (font_cfg.SizePixels <= 0.0f) font_cfg.SizePixels = 13.0f;
1568
1569 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1570 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1571 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1572 font->DisplayOffset.y = 1.0f;
1573 return font;
1574 }
1575
AddFontFromFileTTF(const char * filename,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1576 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1577 {
1578 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1579 size_t data_size = 0;
1580 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1581 if (!data)
1582 {
1583 IM_ASSERT(0); // Could not load file.
1584 return NULL;
1585 }
1586 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1587 if (font_cfg.Name[0] == '\0')
1588 {
1589 // Store a short copy of filename into into the font name for convenience
1590 const char* p;
1591 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1592 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1593 }
1594 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1595 }
1596
1597 // 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)1598 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1599 {
1600 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1601 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1602 IM_ASSERT(font_cfg.FontData == NULL);
1603 font_cfg.FontData = ttf_data;
1604 font_cfg.FontDataSize = ttf_size;
1605 font_cfg.SizePixels = size_pixels;
1606 if (glyph_ranges)
1607 font_cfg.GlyphRanges = glyph_ranges;
1608 return AddFont(&font_cfg);
1609 }
1610
AddFontFromMemoryCompressedTTF(const void * compressed_ttf_data,int compressed_ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1611 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1612 {
1613 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
1614 unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
1615 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
1616
1617 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1618 IM_ASSERT(font_cfg.FontData == NULL);
1619 font_cfg.FontDataOwnedByAtlas = true;
1620 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
1621 }
1622
AddFontFromMemoryCompressedBase85TTF(const char * compressed_ttf_data_base85,float size_pixels,const ImFontConfig * font_cfg,const ImWchar * glyph_ranges)1623 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
1624 {
1625 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
1626 void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size);
1627 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
1628 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
1629 ImGui::MemFree(compressed_ttf);
1630 return font;
1631 }
1632
AddCustomRectRegular(unsigned int id,int width,int height)1633 int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height)
1634 {
1635 IM_ASSERT(id >= 0x10000);
1636 IM_ASSERT(width > 0 && width <= 0xFFFF);
1637 IM_ASSERT(height > 0 && height <= 0xFFFF);
1638 CustomRect r;
1639 r.ID = id;
1640 r.Width = (unsigned short)width;
1641 r.Height = (unsigned short)height;
1642 CustomRects.push_back(r);
1643 return CustomRects.Size - 1; // Return index
1644 }
1645
AddCustomRectFontGlyph(ImFont * font,ImWchar id,int width,int height,float advance_x,const ImVec2 & offset)1646 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
1647 {
1648 IM_ASSERT(font != NULL);
1649 IM_ASSERT(width > 0 && width <= 0xFFFF);
1650 IM_ASSERT(height > 0 && height <= 0xFFFF);
1651 CustomRect r;
1652 r.ID = id;
1653 r.Width = (unsigned short)width;
1654 r.Height = (unsigned short)height;
1655 r.GlyphAdvanceX = advance_x;
1656 r.GlyphOffset = offset;
1657 r.Font = font;
1658 CustomRects.push_back(r);
1659 return CustomRects.Size - 1; // Return index
1660 }
1661
CalcCustomRectUV(const CustomRect * rect,ImVec2 * out_uv_min,ImVec2 * out_uv_max)1662 void ImFontAtlas::CalcCustomRectUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max)
1663 {
1664 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
1665 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
1666 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
1667 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
1668 }
1669
GetMouseCursorTexData(ImGuiMouseCursor cursor_type,ImVec2 * out_offset,ImVec2 * out_size,ImVec2 out_uv_border[2],ImVec2 out_uv_fill[2])1670 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
1671 {
1672 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
1673 return false;
1674 if (Flags & ImFontAtlasFlags_NoMouseCursors)
1675 return false;
1676
1677 IM_ASSERT(CustomRectIds[0] != -1);
1678 ImFontAtlas::CustomRect& r = CustomRects[CustomRectIds[0]];
1679 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
1680 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y);
1681 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
1682 *out_size = size;
1683 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
1684 out_uv_border[0] = (pos) * TexUvScale;
1685 out_uv_border[1] = (pos + size) * TexUvScale;
1686 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
1687 out_uv_fill[0] = (pos) * TexUvScale;
1688 out_uv_fill[1] = (pos + size) * TexUvScale;
1689 return true;
1690 }
1691
Build()1692 bool ImFontAtlas::Build()
1693 {
1694 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1695 return ImFontAtlasBuildWithStbTruetype(this);
1696 }
1697
ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256],float in_brighten_factor)1698 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
1699 {
1700 for (unsigned int i = 0; i < 256; i++)
1701 {
1702 unsigned int value = (unsigned int)(i * in_brighten_factor);
1703 out_table[i] = value > 255 ? 255 : (value & 0xFF);
1704 }
1705 }
1706
ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256],unsigned char * pixels,int x,int y,int w,int h,int stride)1707 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
1708 {
1709 unsigned char* data = pixels + x + y * stride;
1710 for (int j = h; j > 0; j--, data += stride)
1711 for (int i = 0; i < w; i++)
1712 data[i] = table[data[i]];
1713 }
1714
ImFontAtlasBuildWithStbTruetype(ImFontAtlas * atlas)1715 bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
1716 {
1717 IM_ASSERT(atlas->ConfigData.Size > 0);
1718
1719 ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
1720
1721 atlas->TexID = NULL;
1722 atlas->TexWidth = atlas->TexHeight = 0;
1723 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
1724 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1725 atlas->ClearTexData();
1726
1727 // Count glyphs/ranges
1728 int total_glyphs_count = 0;
1729 int total_ranges_count = 0;
1730 for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1731 {
1732 ImFontConfig& cfg = atlas->ConfigData[input_i];
1733 if (!cfg.GlyphRanges)
1734 cfg.GlyphRanges = atlas->GetGlyphRangesDefault();
1735 for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, total_ranges_count++)
1736 total_glyphs_count += (in_range[1] - in_range[0]) + 1;
1737 }
1738
1739 // We need a width for the skyline algorithm. Using a dumb heuristic here to decide of width. User can override TexDesiredWidth and TexGlyphPadding if they wish.
1740 // Width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
1741 atlas->TexWidth = (atlas->TexDesiredWidth > 0) ? atlas->TexDesiredWidth : (total_glyphs_count > 4000) ? 4096 : (total_glyphs_count > 2000) ? 2048 : (total_glyphs_count > 1000) ? 1024 : 512;
1742 atlas->TexHeight = 0;
1743
1744 // Start packing
1745 const int max_tex_height = 1024*32;
1746 stbtt_pack_context spc = {};
1747 if (!stbtt_PackBegin(&spc, NULL, atlas->TexWidth, max_tex_height, 0, atlas->TexGlyphPadding, NULL))
1748 return false;
1749 stbtt_PackSetOversampling(&spc, 1, 1);
1750
1751 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
1752 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
1753
1754 // Initialize font information (so we can error without any cleanup)
1755 struct ImFontTempBuildData
1756 {
1757 stbtt_fontinfo FontInfo;
1758 stbrp_rect* Rects;
1759 int RectsCount;
1760 stbtt_pack_range* Ranges;
1761 int RangesCount;
1762 };
1763 ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)atlas->ConfigData.Size * sizeof(ImFontTempBuildData));
1764 for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1765 {
1766 ImFontConfig& cfg = atlas->ConfigData[input_i];
1767 ImFontTempBuildData& tmp = tmp_array[input_i];
1768 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
1769
1770 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
1771 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
1772 if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
1773 {
1774 atlas->TexWidth = atlas->TexHeight = 0; // Reset output on failure
1775 ImGui::MemFree(tmp_array);
1776 return false;
1777 }
1778 }
1779
1780 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
1781 int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0;
1782 stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbtt_packedchar));
1783 stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbrp_rect));
1784 stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_ranges_count * sizeof(stbtt_pack_range));
1785 memset(buf_packedchars, 0, total_glyphs_count * sizeof(stbtt_packedchar));
1786 memset(buf_rects, 0, total_glyphs_count * sizeof(stbrp_rect)); // Unnecessary but let's clear this for the sake of sanity.
1787 memset(buf_ranges, 0, total_ranges_count * sizeof(stbtt_pack_range));
1788
1789 // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point)
1790 for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1791 {
1792 ImFontConfig& cfg = atlas->ConfigData[input_i];
1793 ImFontTempBuildData& tmp = tmp_array[input_i];
1794
1795 // Setup ranges
1796 int font_glyphs_count = 0;
1797 int font_ranges_count = 0;
1798 for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, font_ranges_count++)
1799 font_glyphs_count += (in_range[1] - in_range[0]) + 1;
1800 tmp.Ranges = buf_ranges + buf_ranges_n;
1801 tmp.RangesCount = font_ranges_count;
1802 buf_ranges_n += font_ranges_count;
1803 for (int i = 0; i < font_ranges_count; i++)
1804 {
1805 const ImWchar* in_range = &cfg.GlyphRanges[i * 2];
1806 stbtt_pack_range& range = tmp.Ranges[i];
1807 range.font_size = cfg.SizePixels;
1808 range.first_unicode_codepoint_in_range = in_range[0];
1809 range.num_chars = (in_range[1] - in_range[0]) + 1;
1810 range.chardata_for_range = buf_packedchars + buf_packedchars_n;
1811 buf_packedchars_n += range.num_chars;
1812 }
1813
1814 // Gather the sizes of all rectangle we need
1815 tmp.Rects = buf_rects + buf_rects_n;
1816 tmp.RectsCount = font_glyphs_count;
1817 buf_rects_n += font_glyphs_count;
1818 stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
1819 int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
1820 IM_ASSERT(n == font_glyphs_count);
1821
1822 // Detect missing glyphs and replace them with a zero-sized box instead of relying on the default glyphs
1823 // This allows us merging overlapping icon fonts more easily.
1824 int rect_i = 0;
1825 for (int range_i = 0; range_i < tmp.RangesCount; range_i++)
1826 for (int char_i = 0; char_i < tmp.Ranges[range_i].num_chars; char_i++, rect_i++)
1827 if (stbtt_FindGlyphIndex(&tmp.FontInfo, tmp.Ranges[range_i].first_unicode_codepoint_in_range + char_i) == 0)
1828 tmp.Rects[rect_i].w = tmp.Rects[rect_i].h = 0;
1829
1830 // Pack
1831 stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n);
1832
1833 // Extend texture height
1834 // Also mark missing glyphs as non-packed so we don't attempt to render into them
1835 for (int i = 0; i < n; i++)
1836 {
1837 if (tmp.Rects[i].w == 0 && tmp.Rects[i].h == 0)
1838 tmp.Rects[i].was_packed = 0;
1839 if (tmp.Rects[i].was_packed)
1840 atlas->TexHeight = ImMax(atlas->TexHeight, tmp.Rects[i].y + tmp.Rects[i].h);
1841 }
1842 }
1843 IM_ASSERT(buf_rects_n == total_glyphs_count);
1844 IM_ASSERT(buf_packedchars_n == total_glyphs_count);
1845 IM_ASSERT(buf_ranges_n == total_ranges_count);
1846
1847 // Create texture
1848 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
1849 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
1850 atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight);
1851 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
1852 spc.pixels = atlas->TexPixelsAlpha8;
1853 spc.height = atlas->TexHeight;
1854
1855 // Second pass: render font characters
1856 for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1857 {
1858 ImFontConfig& cfg = atlas->ConfigData[input_i];
1859 ImFontTempBuildData& tmp = tmp_array[input_i];
1860 stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
1861 stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
1862 if (cfg.RasterizerMultiply != 1.0f)
1863 {
1864 unsigned char multiply_table[256];
1865 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
1866 for (const stbrp_rect* r = tmp.Rects; r != tmp.Rects + tmp.RectsCount; r++)
1867 if (r->was_packed)
1868 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, spc.pixels, r->x, r->y, r->w, r->h, spc.stride_in_bytes);
1869 }
1870 tmp.Rects = NULL;
1871 }
1872
1873 // End packing
1874 stbtt_PackEnd(&spc);
1875 ImGui::MemFree(buf_rects);
1876 buf_rects = NULL;
1877
1878 // Third pass: setup ImFont and glyphs for runtime
1879 for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1880 {
1881 ImFontConfig& cfg = atlas->ConfigData[input_i];
1882 ImFontTempBuildData& tmp = tmp_array[input_i];
1883 ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
1884 if (cfg.MergeMode)
1885 dst_font->BuildLookupTable();
1886
1887 const float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
1888 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
1889 stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
1890
1891 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
1892 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
1893 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
1894 const float font_off_x = cfg.GlyphOffset.x;
1895 const float font_off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f);
1896
1897 for (int i = 0; i < tmp.RangesCount; i++)
1898 {
1899 stbtt_pack_range& range = tmp.Ranges[i];
1900 for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1)
1901 {
1902 const stbtt_packedchar& pc = range.chardata_for_range[char_idx];
1903 if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1)
1904 continue;
1905
1906 const int codepoint = range.first_unicode_codepoint_in_range + char_idx;
1907 if (cfg.MergeMode && dst_font->FindGlyphNoFallback((ImWchar)codepoint))
1908 continue;
1909
1910 float char_advance_x_org = pc.xadvance;
1911 float char_advance_x_mod = ImClamp(char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX);
1912 float char_off_x = font_off_x;
1913 if (char_advance_x_org != char_advance_x_mod)
1914 char_off_x += cfg.PixelSnapH ? (float)(int)((char_advance_x_mod - char_advance_x_org) * 0.5f) : (char_advance_x_mod - char_advance_x_org) * 0.5f;
1915
1916 stbtt_aligned_quad q;
1917 float dummy_x = 0.0f, dummy_y = 0.0f;
1918 stbtt_GetPackedQuad(range.chardata_for_range, atlas->TexWidth, atlas->TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0);
1919 dst_font->AddGlyph((ImWchar)codepoint, q.x0 + char_off_x, q.y0 + font_off_y, q.x1 + char_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, char_advance_x_mod);
1920 }
1921 }
1922 }
1923
1924 // Cleanup temporaries
1925 ImGui::MemFree(buf_packedchars);
1926 ImGui::MemFree(buf_ranges);
1927 ImGui::MemFree(tmp_array);
1928
1929 ImFontAtlasBuildFinish(atlas);
1930
1931 return true;
1932 }
1933
ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas * atlas)1934 void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas)
1935 {
1936 if (atlas->CustomRectIds[0] >= 0)
1937 return;
1938 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
1939 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF*2+1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
1940 else
1941 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2);
1942 }
1943
ImFontAtlasBuildSetupFont(ImFontAtlas * atlas,ImFont * font,ImFontConfig * font_config,float ascent,float descent)1944 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
1945 {
1946 if (!font_config->MergeMode)
1947 {
1948 font->ClearOutputData();
1949 font->FontSize = font_config->SizePixels;
1950 font->ConfigData = font_config;
1951 font->ContainerAtlas = atlas;
1952 font->Ascent = ascent;
1953 font->Descent = descent;
1954 }
1955 font->ConfigDataCount++;
1956 }
1957
ImFontAtlasBuildPackCustomRects(ImFontAtlas * atlas,void * pack_context_opaque)1958 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* pack_context_opaque)
1959 {
1960 stbrp_context* pack_context = (stbrp_context*)pack_context_opaque;
1961
1962 ImVector<ImFontAtlas::CustomRect>& user_rects = atlas->CustomRects;
1963 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
1964
1965 ImVector<stbrp_rect> pack_rects;
1966 pack_rects.resize(user_rects.Size);
1967 memset(pack_rects.Data, 0, sizeof(stbrp_rect) * user_rects.Size);
1968 for (int i = 0; i < user_rects.Size; i++)
1969 {
1970 pack_rects[i].w = user_rects[i].Width;
1971 pack_rects[i].h = user_rects[i].Height;
1972 }
1973 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
1974 for (int i = 0; i < pack_rects.Size; i++)
1975 if (pack_rects[i].was_packed)
1976 {
1977 user_rects[i].X = pack_rects[i].x;
1978 user_rects[i].Y = pack_rects[i].y;
1979 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
1980 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
1981 }
1982 }
1983
ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas * atlas)1984 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
1985 {
1986 IM_ASSERT(atlas->CustomRectIds[0] >= 0);
1987 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
1988 ImFontAtlas::CustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
1989 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
1990 IM_ASSERT(r.IsPacked());
1991
1992 const int w = atlas->TexWidth;
1993 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
1994 {
1995 // Render/copy pixels
1996 IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
1997 for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++)
1998 for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++)
1999 {
2000 const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w;
2001 const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
2002 atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
2003 atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
2004 }
2005 }
2006 else
2007 {
2008 IM_ASSERT(r.Width == 2 && r.Height == 2);
2009 const int offset = (int)(r.X) + (int)(r.Y) * w;
2010 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2011 }
2012 atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y);
2013 }
2014
ImFontAtlasBuildFinish(ImFontAtlas * atlas)2015 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2016 {
2017 // Render into our custom data block
2018 ImFontAtlasBuildRenderDefaultTexData(atlas);
2019
2020 // Register custom rectangle glyphs
2021 for (int i = 0; i < atlas->CustomRects.Size; i++)
2022 {
2023 const ImFontAtlas::CustomRect& r = atlas->CustomRects[i];
2024 if (r.Font == NULL || r.ID > 0x10000)
2025 continue;
2026
2027 IM_ASSERT(r.Font->ContainerAtlas == atlas);
2028 ImVec2 uv0, uv1;
2029 atlas->CalcCustomRectUV(&r, &uv0, &uv1);
2030 r.Font->AddGlyph((ImWchar)r.ID, 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);
2031 }
2032
2033 // Build all fonts lookup tables
2034 for (int i = 0; i < atlas->Fonts.Size; i++)
2035 if (atlas->Fonts[i]->DirtyLookupTables)
2036 atlas->Fonts[i]->BuildLookupTable();
2037 }
2038
2039 // Retrieve list of range (2 int per range, values are inclusive)
GetGlyphRangesDefault()2040 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2041 {
2042 static const ImWchar ranges[] =
2043 {
2044 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2045 0,
2046 };
2047 return &ranges[0];
2048 }
2049
GetGlyphRangesKorean()2050 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2051 {
2052 static const ImWchar ranges[] =
2053 {
2054 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2055 0x3131, 0x3163, // Korean alphabets
2056 0xAC00, 0xD79D, // Korean characters
2057 0,
2058 };
2059 return &ranges[0];
2060 }
2061
GetGlyphRangesChineseFull()2062 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2063 {
2064 static const ImWchar ranges[] =
2065 {
2066 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2067 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2068 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2069 0xFF00, 0xFFEF, // Half-width characters
2070 0x4e00, 0x9FAF, // CJK Ideograms
2071 0,
2072 };
2073 return &ranges[0];
2074 }
2075
UnpackAccumulativeOffsetsIntoRanges(int base_codepoint,const short * accumulative_offsets,int accumulative_offsets_count,ImWchar * out_ranges)2076 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2077 {
2078 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2079 {
2080 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2081 base_codepoint += accumulative_offsets[n];
2082 }
2083 out_ranges[0] = 0;
2084 }
2085
2086 //-------------------------------------------------------------------------
2087 // [SECTION] ImFontAtlas glyph ranges helpers + GlyphRangesBuilder
2088 //-------------------------------------------------------------------------
2089
GetGlyphRangesChineseSimplifiedCommon()2090 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2091 {
2092 // Store 2500 regularly used characters for Simplified Chinese.
2093 // 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
2094 // This table covers 97.97% of all characters used during the month in July, 1987.
2095 // You can use ImFontAtlas::GlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2096 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2097 static const short accumulative_offsets_from_0x4E00[] =
2098 {
2099 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,
2100 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,
2101 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,
2102 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,
2103 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,
2104 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,
2105 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,
2106 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,
2107 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,
2108 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,
2109 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,
2110 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,
2111 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,
2112 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,
2113 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,
2114 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,
2115 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,
2116 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,
2117 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,
2118 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,
2119 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,
2120 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,
2121 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,
2122 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,
2123 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,
2124 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,
2125 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,
2126 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,
2127 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,
2128 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,
2129 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,
2130 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,
2131 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,
2132 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,
2133 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,
2134 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,
2135 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,
2136 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,
2137 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,
2138 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
2139 };
2140 static ImWchar base_ranges[] = // not zero-terminated
2141 {
2142 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2143 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2144 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2145 0xFF00, 0xFFEF, // Half-width characters
2146 };
2147 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2148 if (!full_ranges[0])
2149 {
2150 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2151 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2152 }
2153 return &full_ranges[0];
2154 }
2155
GetGlyphRangesJapanese()2156 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2157 {
2158 // 1946 common ideograms code points for Japanese
2159 // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
2160 // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
2161 // You can use ImFontAtlas::GlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2162 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2163 static const short accumulative_offsets_from_0x4E00[] =
2164 {
2165 0,1,2,4,1,1,1,1,2,1,6,2,2,1,8,5,7,11,1,2,10,10,8,2,4,20,2,11,8,2,1,2,1,6,2,1,7,5,3,7,1,1,13,7,9,1,4,6,1,2,1,10,1,1,9,2,2,4,5,6,14,1,1,9,3,18,
2166 5,4,2,2,10,7,1,1,1,3,2,4,3,23,2,10,12,2,14,2,4,13,1,6,10,3,1,7,13,6,4,13,5,2,3,17,2,2,5,7,6,4,1,7,14,16,6,13,9,15,1,1,7,16,4,7,1,19,9,2,7,15,
2167 2,6,5,13,25,4,14,13,11,25,1,1,1,2,1,2,2,3,10,11,3,3,1,1,4,4,2,1,4,9,1,4,3,5,5,2,7,12,11,15,7,16,4,5,16,2,1,1,6,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,
2168 2,1,12,3,3,9,5,8,1,11,1,2,3,18,20,4,1,3,6,1,7,3,5,5,7,2,2,12,3,1,4,2,3,2,3,11,8,7,4,17,1,9,25,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,6,16,1,2,1,1,3,12,
2169 20,2,5,20,8,7,6,2,1,1,1,1,6,2,1,2,10,1,1,6,1,3,1,2,1,4,1,12,4,1,3,1,1,1,1,1,10,4,7,5,13,1,15,1,1,30,11,9,1,15,38,14,1,32,17,20,1,9,31,2,21,9,
2170 4,49,22,2,1,13,1,11,45,35,43,55,12,19,83,1,3,2,3,13,2,1,7,3,18,3,13,8,1,8,18,5,3,7,25,24,9,24,40,3,17,24,2,1,6,2,3,16,15,6,7,3,12,1,9,7,3,3,
2171 3,15,21,5,16,4,5,12,11,11,3,6,3,2,31,3,2,1,1,23,6,6,1,4,2,6,5,2,1,1,3,3,22,2,6,2,3,17,3,2,4,5,1,9,5,1,1,6,15,12,3,17,2,14,2,8,1,23,16,4,2,23,
2172 8,15,23,20,12,25,19,47,11,21,65,46,4,3,1,5,6,1,2,5,26,2,1,1,3,11,1,1,1,2,1,2,3,1,1,10,2,3,1,1,1,3,6,3,2,2,6,6,9,2,2,2,6,2,5,10,2,4,1,2,1,2,2,
2173 3,1,1,3,1,2,9,23,9,2,1,1,1,1,5,3,2,1,10,9,6,1,10,2,31,25,3,7,5,40,1,15,6,17,7,27,180,1,3,2,2,1,1,1,6,3,10,7,1,3,6,17,8,6,2,2,1,3,5,5,8,16,14,
2174 15,1,1,4,1,2,1,1,1,3,2,7,5,6,2,5,10,1,4,2,9,1,1,11,6,1,44,1,3,7,9,5,1,3,1,1,10,7,1,10,4,2,7,21,15,7,2,5,1,8,3,4,1,3,1,6,1,4,2,1,4,10,8,1,4,5,
2175 1,5,10,2,7,1,10,1,1,3,4,11,10,29,4,7,3,5,2,3,33,5,2,19,3,1,4,2,6,31,11,1,3,3,3,1,8,10,9,12,11,12,8,3,14,8,6,11,1,4,41,3,1,2,7,13,1,5,6,2,6,12,
2176 12,22,5,9,4,8,9,9,34,6,24,1,1,20,9,9,3,4,1,7,2,2,2,6,2,28,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,8,8,3,2,1,5,1,2,2,3,1,11,11,7,3,6,10,8,6,16,16,
2177 22,7,12,6,21,5,4,6,6,3,6,1,3,2,1,2,8,29,1,10,1,6,13,6,6,19,31,1,13,4,4,22,17,26,33,10,4,15,12,25,6,67,10,2,3,1,6,10,2,6,2,9,1,9,4,4,1,2,16,2,
2178 5,9,2,3,8,1,8,3,9,4,8,6,4,8,11,3,2,1,1,3,26,1,7,5,1,11,1,5,3,5,2,13,6,39,5,1,5,2,11,6,10,5,1,15,5,3,6,19,21,22,2,4,1,6,1,8,1,4,8,2,4,2,2,9,2,
2179 1,1,1,4,3,6,3,12,7,1,14,2,4,10,2,13,1,17,7,3,2,1,3,2,13,7,14,12,3,1,29,2,8,9,15,14,9,14,1,3,1,6,5,9,11,3,38,43,20,7,7,8,5,15,12,19,15,81,8,7,
2180 1,5,73,13,37,28,8,8,1,15,18,20,165,28,1,6,11,8,4,14,7,15,1,3,3,6,4,1,7,14,1,1,11,30,1,5,1,4,14,1,4,2,7,52,2,6,29,3,1,9,1,21,3,5,1,26,3,11,14,
2181 11,1,17,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,7,7,5,17,3,3,3,1,23,10,4,4,6,3,1,16,17,22,3,10,21,16,16,6,4,10,2,1,1,2,8,8,6,5,3,3,3,39,25,
2182 15,1,1,16,6,7,25,15,6,6,12,1,22,13,1,4,9,5,12,2,9,1,12,28,8,3,5,10,22,60,1,2,40,4,61,63,4,1,13,12,1,4,31,12,1,14,89,5,16,6,29,14,2,5,49,18,18,
2183 5,29,33,47,1,17,1,19,12,2,9,7,39,12,3,7,12,39,3,1,46,4,12,3,8,9,5,31,15,18,3,2,2,66,19,13,17,5,3,46,124,13,57,34,2,5,4,5,8,1,1,1,4,3,1,17,5,
2184 3,5,3,1,8,5,6,3,27,3,26,7,12,7,2,17,3,7,18,78,16,4,36,1,2,1,6,2,1,39,17,7,4,13,4,4,4,1,10,4,2,4,6,3,10,1,19,1,26,2,4,33,2,73,47,7,3,8,2,4,15,
2185 18,1,29,2,41,14,1,21,16,41,7,39,25,13,44,2,2,10,1,13,7,1,7,3,5,20,4,8,2,49,1,10,6,1,6,7,10,7,11,16,3,12,20,4,10,3,1,2,11,2,28,9,2,4,7,2,15,1,
2186 27,1,28,17,4,5,10,7,3,24,10,11,6,26,3,2,7,2,2,49,16,10,16,15,4,5,27,61,30,14,38,22,2,7,5,1,3,12,23,24,17,17,3,3,2,4,1,6,2,7,5,1,1,5,1,1,9,4,
2187 1,3,6,1,8,2,8,4,14,3,5,11,4,1,3,32,1,19,4,1,13,11,5,2,1,8,6,8,1,6,5,13,3,23,11,5,3,16,3,9,10,1,24,3,198,52,4,2,2,5,14,5,4,22,5,20,4,11,6,41,
2188 1,5,2,2,11,5,2,28,35,8,22,3,18,3,10,7,5,3,4,1,5,3,8,9,3,6,2,16,22,4,5,5,3,3,18,23,2,6,23,5,27,8,1,33,2,12,43,16,5,2,3,6,1,20,4,2,9,7,1,11,2,
2189 10,3,14,31,9,3,25,18,20,2,5,5,26,14,1,11,17,12,40,19,9,6,31,83,2,7,9,19,78,12,14,21,76,12,113,79,34,4,1,1,61,18,85,10,2,2,13,31,11,50,6,33,159,
2190 179,6,6,7,4,4,2,4,2,5,8,7,20,32,22,1,3,10,6,7,28,5,10,9,2,77,19,13,2,5,1,4,4,7,4,13,3,9,31,17,3,26,2,6,6,5,4,1,7,11,3,4,2,1,6,2,20,4,1,9,2,6,
2191 3,7,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,5,13,8,4,11,23,1,10,6,2,1,3,21,2,2,4,24,31,4,10,10,2,5,192,15,4,16,7,9,51,1,2,1,1,5,1,1,2,1,3,5,3,1,3,4,1,
2192 3,1,3,3,9,8,1,2,2,2,4,4,18,12,92,2,10,4,3,14,5,25,16,42,4,14,4,2,21,5,126,30,31,2,1,5,13,3,22,5,6,6,20,12,1,14,12,87,3,19,1,8,2,9,9,3,3,23,2,
2193 3,7,6,3,1,2,3,9,1,3,1,6,3,2,1,3,11,3,1,6,10,3,2,3,1,2,1,5,1,1,11,3,6,4,1,7,2,1,2,5,5,34,4,14,18,4,19,7,5,8,2,6,79,1,5,2,14,8,2,9,2,1,36,28,16,
2194 4,1,1,1,2,12,6,42,39,16,23,7,15,15,3,2,12,7,21,64,6,9,28,8,12,3,3,41,59,24,51,55,57,294,9,9,2,6,2,15,1,2,13,38,90,9,9,9,3,11,7,1,1,1,5,6,3,2,
2195 1,2,2,3,8,1,4,4,1,5,7,1,4,3,20,4,9,1,1,1,5,5,17,1,5,2,6,2,4,1,4,5,7,3,18,11,11,32,7,5,4,7,11,127,8,4,3,3,1,10,1,1,6,21,14,1,16,1,7,1,3,6,9,65,
2196 51,4,3,13,3,10,1,1,12,9,21,110,3,19,24,1,1,10,62,4,1,29,42,78,28,20,18,82,6,3,15,6,84,58,253,15,155,264,15,21,9,14,7,58,40,39,
2197 };
2198 static ImWchar base_ranges[] = // not zero-terminated
2199 {
2200 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2201 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2202 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2203 0xFF00, 0xFFEF, // Half-width characters
2204 };
2205 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
2206 if (!full_ranges[0])
2207 {
2208 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2209 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2210 }
2211 return &full_ranges[0];
2212 }
2213
GetGlyphRangesCyrillic()2214 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
2215 {
2216 static const ImWchar ranges[] =
2217 {
2218 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2219 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
2220 0x2DE0, 0x2DFF, // Cyrillic Extended-A
2221 0xA640, 0xA69F, // Cyrillic Extended-B
2222 0,
2223 };
2224 return &ranges[0];
2225 }
2226
GetGlyphRangesThai()2227 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
2228 {
2229 static const ImWchar ranges[] =
2230 {
2231 0x0020, 0x00FF, // Basic Latin
2232 0x2010, 0x205E, // Punctuations
2233 0x0E00, 0x0E7F, // Thai
2234 0,
2235 };
2236 return &ranges[0];
2237 }
2238
AddText(const char * text,const char * text_end)2239 void ImFontAtlas::GlyphRangesBuilder::AddText(const char* text, const char* text_end)
2240 {
2241 while (text_end ? (text < text_end) : *text)
2242 {
2243 unsigned int c = 0;
2244 int c_len = ImTextCharFromUtf8(&c, text, text_end);
2245 text += c_len;
2246 if (c_len == 0)
2247 break;
2248 if (c < 0x10000)
2249 AddChar((ImWchar)c);
2250 }
2251 }
2252
AddRanges(const ImWchar * ranges)2253 void ImFontAtlas::GlyphRangesBuilder::AddRanges(const ImWchar* ranges)
2254 {
2255 for (; ranges[0]; ranges += 2)
2256 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
2257 AddChar(c);
2258 }
2259
BuildRanges(ImVector<ImWchar> * out_ranges)2260 void ImFontAtlas::GlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
2261 {
2262 for (int n = 0; n < 0x10000; n++)
2263 if (GetBit(n))
2264 {
2265 out_ranges->push_back((ImWchar)n);
2266 while (n < 0x10000 && GetBit(n + 1))
2267 n++;
2268 out_ranges->push_back((ImWchar)n);
2269 }
2270 out_ranges->push_back(0);
2271 }
2272
2273 //-----------------------------------------------------------------------------
2274 // [SECTION] ImFont
2275 //-----------------------------------------------------------------------------
2276
ImFont()2277 ImFont::ImFont()
2278 {
2279 Scale = 1.0f;
2280 FallbackChar = (ImWchar)'?';
2281 DisplayOffset = ImVec2(0.0f, 0.0f);
2282 ClearOutputData();
2283 }
2284
~ImFont()2285 ImFont::~ImFont()
2286 {
2287 // Invalidate active font so that the user gets a clear crash instead of a dangling pointer.
2288 // If you want to delete fonts you need to do it between Render() and NewFrame().
2289 // FIXME-CLEANUP
2290 /*
2291 ImGuiContext& g = *GImGui;
2292 if (g.Font == this)
2293 g.Font = NULL;
2294 */
2295 ClearOutputData();
2296 }
2297
ClearOutputData()2298 void ImFont::ClearOutputData()
2299 {
2300 FontSize = 0.0f;
2301 Glyphs.clear();
2302 IndexAdvanceX.clear();
2303 IndexLookup.clear();
2304 FallbackGlyph = NULL;
2305 FallbackAdvanceX = 0.0f;
2306 ConfigDataCount = 0;
2307 ConfigData = NULL;
2308 ContainerAtlas = NULL;
2309 Ascent = Descent = 0.0f;
2310 DirtyLookupTables = true;
2311 MetricsTotalSurface = 0;
2312 }
2313
BuildLookupTable()2314 void ImFont::BuildLookupTable()
2315 {
2316 int max_codepoint = 0;
2317 for (int i = 0; i != Glyphs.Size; i++)
2318 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
2319
2320 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
2321 IndexAdvanceX.clear();
2322 IndexLookup.clear();
2323 DirtyLookupTables = false;
2324 GrowIndex(max_codepoint + 1);
2325 for (int i = 0; i < Glyphs.Size; i++)
2326 {
2327 int codepoint = (int)Glyphs[i].Codepoint;
2328 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
2329 IndexLookup[codepoint] = (ImWchar)i;
2330 }
2331
2332 // Create a glyph to handle TAB
2333 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
2334 if (FindGlyph((ImWchar)' '))
2335 {
2336 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times
2337 Glyphs.resize(Glyphs.Size + 1);
2338 ImFontGlyph& tab_glyph = Glyphs.back();
2339 tab_glyph = *FindGlyph((ImWchar)' ');
2340 tab_glyph.Codepoint = '\t';
2341 tab_glyph.AdvanceX *= 4;
2342 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
2343 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size-1);
2344 }
2345
2346 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
2347 FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
2348 for (int i = 0; i < max_codepoint + 1; i++)
2349 if (IndexAdvanceX[i] < 0.0f)
2350 IndexAdvanceX[i] = FallbackAdvanceX;
2351 }
2352
SetFallbackChar(ImWchar c)2353 void ImFont::SetFallbackChar(ImWchar c)
2354 {
2355 FallbackChar = c;
2356 BuildLookupTable();
2357 }
2358
GrowIndex(int new_size)2359 void ImFont::GrowIndex(int new_size)
2360 {
2361 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
2362 if (new_size <= IndexLookup.Size)
2363 return;
2364 IndexAdvanceX.resize(new_size, -1.0f);
2365 IndexLookup.resize(new_size, (ImWchar)-1);
2366 }
2367
2368 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
2369 // 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).
AddGlyph(ImWchar codepoint,float x0,float y0,float x1,float y1,float u0,float v0,float u1,float v1,float advance_x)2370 void ImFont::AddGlyph(ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
2371 {
2372 Glyphs.resize(Glyphs.Size + 1);
2373 ImFontGlyph& glyph = Glyphs.back();
2374 glyph.Codepoint = (ImWchar)codepoint;
2375 glyph.X0 = x0;
2376 glyph.Y0 = y0;
2377 glyph.X1 = x1;
2378 glyph.Y1 = y1;
2379 glyph.U0 = u0;
2380 glyph.V0 = v0;
2381 glyph.U1 = u1;
2382 glyph.V1 = v1;
2383 glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x; // Bake spacing into AdvanceX
2384
2385 if (ConfigData->PixelSnapH)
2386 glyph.AdvanceX = (float)(int)(glyph.AdvanceX + 0.5f);
2387
2388 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
2389 DirtyLookupTables = true;
2390 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + 1.99f);
2391 }
2392
AddRemapChar(ImWchar dst,ImWchar src,bool overwrite_dst)2393 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
2394 {
2395 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
2396 int index_size = IndexLookup.Size;
2397
2398 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
2399 return;
2400 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
2401 return;
2402
2403 GrowIndex(dst + 1);
2404 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
2405 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
2406 }
2407
FindGlyph(ImWchar c) const2408 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
2409 {
2410 if (c >= IndexLookup.Size)
2411 return FallbackGlyph;
2412 const ImWchar i = IndexLookup[c];
2413 if (i == (ImWchar)-1)
2414 return FallbackGlyph;
2415 return &Glyphs.Data[i];
2416 }
2417
FindGlyphNoFallback(ImWchar c) const2418 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
2419 {
2420 if (c >= IndexLookup.Size)
2421 return NULL;
2422 const ImWchar i = IndexLookup[c];
2423 if (i == (ImWchar)-1)
2424 return NULL;
2425 return &Glyphs.Data[i];
2426 }
2427
CalcWordWrapPositionA(float scale,const char * text,const char * text_end,float wrap_width) const2428 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
2429 {
2430 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
2431 // 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.)
2432
2433 // For references, possible wrap point marked with ^
2434 // "aaa bbb, ccc,ddd. eee fff. ggg!"
2435 // ^ ^ ^ ^ ^__ ^ ^
2436
2437 // List of hardcoded separators: .,;!?'"
2438
2439 // Skip extra blanks after a line returns (that includes not counting them in width computation)
2440 // e.g. "Hello world" --> "Hello" "World"
2441
2442 // Cut words that cannot possibly fit within one line.
2443 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
2444
2445 float line_width = 0.0f;
2446 float word_width = 0.0f;
2447 float blank_width = 0.0f;
2448 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
2449
2450 const char* word_end = text;
2451 const char* prev_word_end = NULL;
2452 bool inside_word = true;
2453
2454 const char* s = text;
2455 while (s < text_end)
2456 {
2457 unsigned int c = (unsigned int)*s;
2458 const char* next_s;
2459 if (c < 0x80)
2460 next_s = s + 1;
2461 else
2462 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
2463 if (c == 0)
2464 break;
2465
2466 if (c < 32)
2467 {
2468 if (c == '\n')
2469 {
2470 line_width = word_width = blank_width = 0.0f;
2471 inside_word = true;
2472 s = next_s;
2473 continue;
2474 }
2475 if (c == '\r')
2476 {
2477 s = next_s;
2478 continue;
2479 }
2480 }
2481
2482 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX[(int)c] : FallbackAdvanceX);
2483 if (ImCharIsBlankW(c))
2484 {
2485 if (inside_word)
2486 {
2487 line_width += blank_width;
2488 blank_width = 0.0f;
2489 word_end = s;
2490 }
2491 blank_width += char_width;
2492 inside_word = false;
2493 }
2494 else
2495 {
2496 word_width += char_width;
2497 if (inside_word)
2498 {
2499 word_end = next_s;
2500 }
2501 else
2502 {
2503 prev_word_end = word_end;
2504 line_width += word_width + blank_width;
2505 word_width = blank_width = 0.0f;
2506 }
2507
2508 // Allow wrapping after punctuation.
2509 inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"');
2510 }
2511
2512 // We ignore blank width at the end of the line (they can be skipped)
2513 if (line_width + word_width >= wrap_width)
2514 {
2515 // Words that cannot possibly fit within an entire line will be cut anywhere.
2516 if (word_width < wrap_width)
2517 s = prev_word_end ? prev_word_end : word_end;
2518 break;
2519 }
2520
2521 s = next_s;
2522 }
2523
2524 return s;
2525 }
2526
CalcTextSizeA(float size,float max_width,float wrap_width,const char * text_begin,const char * text_end,const char ** remaining) const2527 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
2528 {
2529 if (!text_end)
2530 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
2531
2532 const float line_height = size;
2533 const float scale = size / FontSize;
2534
2535 ImVec2 text_size = ImVec2(0,0);
2536 float line_width = 0.0f;
2537
2538 const bool word_wrap_enabled = (wrap_width > 0.0f);
2539 const char* word_wrap_eol = NULL;
2540
2541 const char* s = text_begin;
2542 while (s < text_end)
2543 {
2544 if (word_wrap_enabled)
2545 {
2546 // 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.
2547 if (!word_wrap_eol)
2548 {
2549 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
2550 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
2551 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
2552 }
2553
2554 if (s >= word_wrap_eol)
2555 {
2556 if (text_size.x < line_width)
2557 text_size.x = line_width;
2558 text_size.y += line_height;
2559 line_width = 0.0f;
2560 word_wrap_eol = NULL;
2561
2562 // Wrapping skips upcoming blanks
2563 while (s < text_end)
2564 {
2565 const char c = *s;
2566 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
2567 }
2568 continue;
2569 }
2570 }
2571
2572 // Decode and advance source
2573 const char* prev_s = s;
2574 unsigned int c = (unsigned int)*s;
2575 if (c < 0x80)
2576 {
2577 s += 1;
2578 }
2579 else
2580 {
2581 s += ImTextCharFromUtf8(&c, s, text_end);
2582 if (c == 0) // Malformed UTF-8?
2583 break;
2584 }
2585
2586 if (c < 32)
2587 {
2588 if (c == '\n')
2589 {
2590 text_size.x = ImMax(text_size.x, line_width);
2591 text_size.y += line_height;
2592 line_width = 0.0f;
2593 continue;
2594 }
2595 if (c == '\r')
2596 continue;
2597 }
2598
2599 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX[(int)c] : FallbackAdvanceX) * scale;
2600 if (line_width + char_width >= max_width)
2601 {
2602 s = prev_s;
2603 break;
2604 }
2605
2606 line_width += char_width;
2607 }
2608
2609 if (text_size.x < line_width)
2610 text_size.x = line_width;
2611
2612 if (line_width > 0 || text_size.y == 0.0f)
2613 text_size.y += line_height;
2614
2615 if (remaining)
2616 *remaining = s;
2617
2618 return text_size;
2619 }
2620
RenderChar(ImDrawList * draw_list,float size,ImVec2 pos,ImU32 col,ImWchar c) const2621 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
2622 {
2623 if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
2624 return;
2625 if (const ImFontGlyph* glyph = FindGlyph(c))
2626 {
2627 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
2628 pos.x = (float)(int)pos.x + DisplayOffset.x;
2629 pos.y = (float)(int)pos.y + DisplayOffset.y;
2630 draw_list->PrimReserve(6, 4);
2631 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);
2632 }
2633 }
2634
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) const2635 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
2636 {
2637 if (!text_end)
2638 text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls.
2639
2640 // Align to be pixel perfect
2641 pos.x = (float)(int)pos.x + DisplayOffset.x;
2642 pos.y = (float)(int)pos.y + DisplayOffset.y;
2643 float x = pos.x;
2644 float y = pos.y;
2645 if (y > clip_rect.w)
2646 return;
2647
2648 const float scale = size / FontSize;
2649 const float line_height = FontSize * scale;
2650 const bool word_wrap_enabled = (wrap_width > 0.0f);
2651 const char* word_wrap_eol = NULL;
2652
2653 // Fast-forward to first visible line
2654 const char* s = text_begin;
2655 if (y + line_height < clip_rect.y && !word_wrap_enabled)
2656 while (y + line_height < clip_rect.y)
2657 {
2658 while (s < text_end)
2659 if (*s++ == '\n')
2660 break;
2661 y += line_height;
2662 }
2663
2664 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
2665 // 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)
2666 if (text_end - s > 10000 && !word_wrap_enabled)
2667 {
2668 const char* s_end = s;
2669 float y_end = y;
2670 while (y_end < clip_rect.w)
2671 {
2672 while (s_end < text_end)
2673 if (*s_end++ == '\n')
2674 break;
2675 y_end += line_height;
2676 }
2677 text_end = s_end;
2678 }
2679
2680 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
2681 const int vtx_count_max = (int)(text_end - s) * 4;
2682 const int idx_count_max = (int)(text_end - s) * 6;
2683 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
2684 draw_list->PrimReserve(idx_count_max, vtx_count_max);
2685
2686 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
2687 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
2688 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
2689
2690 while (s < text_end)
2691 {
2692 if (word_wrap_enabled)
2693 {
2694 // 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.
2695 if (!word_wrap_eol)
2696 {
2697 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
2698 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
2699 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
2700 }
2701
2702 if (s >= word_wrap_eol)
2703 {
2704 x = pos.x;
2705 y += line_height;
2706 word_wrap_eol = NULL;
2707
2708 // Wrapping skips upcoming blanks
2709 while (s < text_end)
2710 {
2711 const char c = *s;
2712 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
2713 }
2714 continue;
2715 }
2716 }
2717
2718 // Decode and advance source
2719 unsigned int c = (unsigned int)*s;
2720 if (c < 0x80)
2721 {
2722 s += 1;
2723 }
2724 else
2725 {
2726 s += ImTextCharFromUtf8(&c, s, text_end);
2727 if (c == 0) // Malformed UTF-8?
2728 break;
2729 }
2730
2731 if (c < 32)
2732 {
2733 if (c == '\n')
2734 {
2735 x = pos.x;
2736 y += line_height;
2737 if (y > clip_rect.w)
2738 break; // break out of main loop
2739 continue;
2740 }
2741 if (c == '\r')
2742 continue;
2743 }
2744
2745 float char_width = 0.0f;
2746 if (const ImFontGlyph* glyph = FindGlyph((ImWchar)c))
2747 {
2748 char_width = glyph->AdvanceX * scale;
2749
2750 // Arbitrarily assume that both space and tabs are empty glyphs as an optimization
2751 if (c != ' ' && c != '\t')
2752 {
2753 // 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
2754 float x1 = x + glyph->X0 * scale;
2755 float x2 = x + glyph->X1 * scale;
2756 float y1 = y + glyph->Y0 * scale;
2757 float y2 = y + glyph->Y1 * scale;
2758 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
2759 {
2760 // Render a character
2761 float u1 = glyph->U0;
2762 float v1 = glyph->V0;
2763 float u2 = glyph->U1;
2764 float v2 = glyph->V1;
2765
2766 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
2767 if (cpu_fine_clip)
2768 {
2769 if (x1 < clip_rect.x)
2770 {
2771 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
2772 x1 = clip_rect.x;
2773 }
2774 if (y1 < clip_rect.y)
2775 {
2776 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
2777 y1 = clip_rect.y;
2778 }
2779 if (x2 > clip_rect.z)
2780 {
2781 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
2782 x2 = clip_rect.z;
2783 }
2784 if (y2 > clip_rect.w)
2785 {
2786 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
2787 y2 = clip_rect.w;
2788 }
2789 if (y1 >= y2)
2790 {
2791 x += char_width;
2792 continue;
2793 }
2794 }
2795
2796 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
2797 {
2798 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
2799 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
2800 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;
2801 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;
2802 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;
2803 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;
2804 vtx_write += 4;
2805 vtx_current_idx += 4;
2806 idx_write += 6;
2807 }
2808 }
2809 }
2810 }
2811
2812 x += char_width;
2813 }
2814
2815 // Give back unused vertices
2816 draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data));
2817 draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data));
2818 draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
2819 draw_list->_VtxWritePtr = vtx_write;
2820 draw_list->_IdxWritePtr = idx_write;
2821 draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size;
2822 }
2823
2824 //-----------------------------------------------------------------------------
2825 // [SECTION] Internal Render Helpers
2826 // (progressively moved from imgui.cpp to here when they are redesigned to stop accessing ImGui global state)
2827 //-----------------------------------------------------------------------------
2828 // - RenderMouseCursor()
2829 // - RenderArrowPointingAt()
2830 // - RenderRectFilledRangeH()
2831 //-----------------------------------------------------------------------------
2832
RenderMouseCursor(ImDrawList * draw_list,ImVec2 pos,float scale,ImGuiMouseCursor mouse_cursor)2833 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor)
2834 {
2835 if (mouse_cursor == ImGuiMouseCursor_None)
2836 return;
2837 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
2838
2839 const ImU32 col_shadow = IM_COL32(0, 0, 0, 48);
2840 const ImU32 col_border = IM_COL32(0, 0, 0, 255); // Black
2841 const ImU32 col_fill = IM_COL32(255, 255, 255, 255); // White
2842
2843 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
2844 ImVec2 offset, size, uv[4];
2845 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
2846 {
2847 pos -= offset;
2848 const ImTextureID tex_id = font_atlas->TexID;
2849 draw_list->PushTextureID(tex_id);
2850 draw_list->AddImage(tex_id, pos + ImVec2(1,0)*scale, pos + ImVec2(1,0)*scale + size*scale, uv[2], uv[3], col_shadow);
2851 draw_list->AddImage(tex_id, pos + ImVec2(2,0)*scale, pos + ImVec2(2,0)*scale + size*scale, uv[2], uv[3], col_shadow);
2852 draw_list->AddImage(tex_id, pos, pos + size*scale, uv[2], uv[3], col_border);
2853 draw_list->AddImage(tex_id, pos, pos + size*scale, uv[0], uv[1], col_fill);
2854 draw_list->PopTextureID();
2855 }
2856 }
2857
2858 // 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)2859 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
2860 {
2861 switch (direction)
2862 {
2863 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;
2864 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;
2865 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;
2866 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;
2867 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
2868 }
2869 }
2870
ImAcos01(float x)2871 static inline float ImAcos01(float x)
2872 {
2873 if (x <= 0.0f) return IM_PI * 0.5f;
2874 if (x >= 1.0f) return 0.0f;
2875 return ImAcos(x);
2876 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
2877 }
2878
2879 // 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)2880 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
2881 {
2882 if (x_end_norm == x_start_norm)
2883 return;
2884 if (x_start_norm > x_end_norm)
2885 ImSwap(x_start_norm, x_end_norm);
2886
2887 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
2888 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
2889 if (rounding == 0.0f)
2890 {
2891 draw_list->AddRectFilled(p0, p1, col, 0.0f);
2892 return;
2893 }
2894
2895 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
2896 const float inv_rounding = 1.0f / rounding;
2897 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
2898 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
2899 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
2900 if (arc0_b == arc0_e)
2901 {
2902 draw_list->PathLineTo(ImVec2(x0, p1.y));
2903 draw_list->PathLineTo(ImVec2(x0, p0.y));
2904 }
2905 else if (arc0_b == 0.0f && arc0_e == IM_PI*0.5f)
2906 {
2907 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
2908 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
2909 }
2910 else
2911 {
2912 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
2913 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
2914 }
2915 if (p1.x > rect.Min.x + rounding)
2916 {
2917 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
2918 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
2919 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
2920 if (arc1_b == arc1_e)
2921 {
2922 draw_list->PathLineTo(ImVec2(x1, p0.y));
2923 draw_list->PathLineTo(ImVec2(x1, p1.y));
2924 }
2925 else if (arc1_b == 0.0f && arc1_e == IM_PI*0.5f)
2926 {
2927 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
2928 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
2929 }
2930 else
2931 {
2932 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
2933 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
2934 }
2935 }
2936 draw_list->PathFillConvex(col);
2937 }
2938
2939
2940 //-----------------------------------------------------------------------------
2941 // [SECTION] Decompression code
2942 //-----------------------------------------------------------------------------
2943 // Compressed with stb_compress() then converted to a C array and encoded as base85.
2944 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
2945 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
2946 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
2947 //-----------------------------------------------------------------------------
2948
stb_decompress_length(const unsigned char * input)2949 static unsigned int stb_decompress_length(const unsigned char *input)
2950 {
2951 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
2952 }
2953
2954 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
2955 static const unsigned char *stb__barrier_in_b;
2956 static unsigned char *stb__dout;
stb__match(const unsigned char * data,unsigned int length)2957 static void stb__match(const unsigned char *data, unsigned int length)
2958 {
2959 // INVERSE of memmove... write each byte before copying the next...
2960 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
2961 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
2962 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
2963 while (length--) *stb__dout++ = *data++;
2964 }
2965
stb__lit(const unsigned char * data,unsigned int length)2966 static void stb__lit(const unsigned char *data, unsigned int length)
2967 {
2968 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
2969 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
2970 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
2971 memcpy(stb__dout, data, length);
2972 stb__dout += length;
2973 }
2974
2975 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
2976 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
2977 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
2978
stb_decompress_token(const unsigned char * i)2979 static const unsigned char *stb_decompress_token(const unsigned char *i)
2980 {
2981 if (*i >= 0x20) { // use fewer if's for cases that expand small
2982 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
2983 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
2984 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
2985 } else { // more ifs for cases that expand large, since overhead is amortized
2986 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
2987 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
2988 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
2989 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
2990 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
2991 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
2992 }
2993 return i;
2994 }
2995
stb_adler32(unsigned int adler32,unsigned char * buffer,unsigned int buflen)2996 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
2997 {
2998 const unsigned long ADLER_MOD = 65521;
2999 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
3000 unsigned long blocklen, i;
3001
3002 blocklen = buflen % 5552;
3003 while (buflen) {
3004 for (i=0; i + 7 < blocklen; i += 8) {
3005 s1 += buffer[0], s2 += s1;
3006 s1 += buffer[1], s2 += s1;
3007 s1 += buffer[2], s2 += s1;
3008 s1 += buffer[3], s2 += s1;
3009 s1 += buffer[4], s2 += s1;
3010 s1 += buffer[5], s2 += s1;
3011 s1 += buffer[6], s2 += s1;
3012 s1 += buffer[7], s2 += s1;
3013
3014 buffer += 8;
3015 }
3016
3017 for (; i < blocklen; ++i)
3018 s1 += *buffer++, s2 += s1;
3019
3020 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
3021 buflen -= blocklen;
3022 blocklen = 5552;
3023 }
3024 return (unsigned int)(s2 << 16) + (unsigned int)s1;
3025 }
3026
stb_decompress(unsigned char * output,const unsigned char * i,unsigned int)3027 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
3028 {
3029 unsigned int olen;
3030 if (stb__in4(0) != 0x57bC0000) return 0;
3031 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
3032 olen = stb_decompress_length(i);
3033 stb__barrier_in_b = i;
3034 stb__barrier_out_e = output + olen;
3035 stb__barrier_out_b = output;
3036 i += 16;
3037
3038 stb__dout = output;
3039 for (;;) {
3040 const unsigned char *old_i = i;
3041 i = stb_decompress_token(i);
3042 if (i == old_i) {
3043 if (*i == 0x05 && i[1] == 0xfa) {
3044 IM_ASSERT(stb__dout == output + olen);
3045 if (stb__dout != output + olen) return 0;
3046 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
3047 return 0;
3048 return olen;
3049 } else {
3050 IM_ASSERT(0); /* NOTREACHED */
3051 return 0;
3052 }
3053 }
3054 IM_ASSERT(stb__dout <= output + olen);
3055 if (stb__dout > output + olen)
3056 return 0;
3057 }
3058 }
3059
3060 //-----------------------------------------------------------------------------
3061 // [SECTION] Default font data (ProggyClean.ttf)
3062 //-----------------------------------------------------------------------------
3063 // ProggyClean.ttf
3064 // Copyright (c) 2004, 2005 Tristan Grimmer
3065 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
3066 // Download and more information at http://upperbounds.net
3067 //-----------------------------------------------------------------------------
3068 // File: 'ProggyClean.ttf' (41208 bytes)
3069 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
3070 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3071 //-----------------------------------------------------------------------------
3072 static const char proggy_clean_ttf_compressed_data_base85[11980+1] =
3073 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
3074 "2*>]b(MC;$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#"
3075 "`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"
3076 "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"
3077 "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"
3078 "*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)"
3079 "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"
3080 "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."
3081 "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"
3082 "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(,)"
3083 "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#"
3084 "'/###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"
3085 "_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"
3086 "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/"
3087 "/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"
3088 "%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&#"
3089 "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)("
3090 "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"
3091 "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"
3092 "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^-"
3093 "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-"
3094 "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"
3095 "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%"
3096 "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]"
3097 "%(?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"
3098 "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:"
3099 "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("
3100 "$/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<"
3101 "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'?"
3102 "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/;"
3103 ")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"
3104 "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("
3105 "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"
3106 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTGT5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
3107 "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<-"
3108 "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"
3109 "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"
3110 ".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@@"
3111 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
3112 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
3113 "@-W$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&#"
3114 "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#"
3115 "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"
3116 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoFDoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
3117 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
3118 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
3119 ":k$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+"
3120 "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*"
3121 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
3122 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
3123 "7aQC[K8d-(v6GI$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"
3124 "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"
3125 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
3126 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
3127 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
3128 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
3129 "^V'9;jY@;)br#q^YQpx:X#Te$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:"
3130 "+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%"
3131 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
3132 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
3133 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
3134 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
3135 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
3136 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
3137 "+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"
3138 "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"
3139 "?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"
3140 "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"
3141 ">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-$.QN'>"
3142 "[%$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"
3143 "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#"
3144 "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$"
3145 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
3146 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
3147 "1*c-(aY168o<`JsSbk-,1N;$>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"
3148 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
3149 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
3150 ";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&>"
3151 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
3152 "d<F&#*;G##.GY##2Sl##6`($#: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"
3153 "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$C#+E6C#"
3154 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
3155 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
3156 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
3157 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
3158 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
3159
GetDefaultCompressedFontDataTTFBase85()3160 static const char* GetDefaultCompressedFontDataTTFBase85()
3161 {
3162 return proggy_clean_ttf_compressed_data_base85;
3163 }
3164