imgui_draw.cpp
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1 // dear imgui, v1.67 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
16 // [SECTION] ImFontGlyphRangesBuilder
17 // [SECTION] ImFont
18 // [SECTION] Internal Render Helpers
19 // [SECTION] Decompression code
20 // [SECTION] Default font data (ProggyClean.ttf)
21 
22 */
23 
24 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
25 #define _CRT_SECURE_NO_WARNINGS
26 #endif
27 
28 #include "imgui.h"
29 #ifndef IMGUI_DEFINE_MATH_OPERATORS
30 #define IMGUI_DEFINE_MATH_OPERATORS
31 #endif
32 #include "imgui_internal.h"
33 
34 #include <stdio.h> // vsnprintf, sscanf, printf
35 #if !defined(alloca)
36 #if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__)
37 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
38 #elif defined(_WIN32)
39 #include <malloc.h> // alloca
40 #if !defined(alloca)
41 #define alloca _alloca // for clang with MS Codegen
42 #endif
43 #else
44 #include <stdlib.h> // alloca
45 #endif
46 #endif
47 
48 // Visual Studio warnings
49 #ifdef _MSC_VER
50 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
51 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
52 #endif
53 
54 // Clang/GCC warnings with -Weverything
55 #ifdef __clang__
56 #pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
57 #pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
58 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it.
59 #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
60 #if __has_warning("-Wcomma")
61 #pragma clang diagnostic ignored "-Wcomma" // warning : possible misuse of comma operator here //
62 #endif
63 #if __has_warning("-Wreserved-id-macro")
64 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier //
65 #endif
66 #if __has_warning("-Wdouble-promotion")
67 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
68 #endif
69 #elif defined(__GNUC__)
70 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
71 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
72 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
73 #if __GNUC__ >= 8
74 #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
75 #endif
76 #endif
77 
78 //-------------------------------------------------------------------------
79 // [SECTION] STB libraries implementation
80 //-------------------------------------------------------------------------
81 
82 // Compile time options:
83 //#define IMGUI_STB_NAMESPACE ImGuiStb
84 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
85 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
86 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
87 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
88 
89 #ifdef IMGUI_STB_NAMESPACE
90 namespace IMGUI_STB_NAMESPACE
91 {
92 #endif
93 
94 #ifdef _MSC_VER
95 #pragma warning (push)
96 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
97 #endif
98 
99 #ifdef __clang__
100 #pragma clang diagnostic push
101 #pragma clang diagnostic ignored "-Wunused-function"
102 #pragma clang diagnostic ignored "-Wmissing-prototypes"
103 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
104 #pragma clang diagnostic ignored "-Wcast-qual" // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
105 #endif
106 
107 #ifdef __GNUC__
108 #pragma GCC diagnostic push
109 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
110 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
111 #endif
112 
113 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
114 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
115 #define STBRP_STATIC
116 #define STBRP_ASSERT(x) IM_ASSERT(x)
117 #define STBRP_SORT ImQsort
118 #define STB_RECT_PACK_IMPLEMENTATION
119 #endif
120 #ifdef IMGUI_STB_RECT_PACK_FILENAME
121 #include IMGUI_STB_RECT_PACK_FILENAME
122 #else
123 #include "imstb_rectpack.h"
124 #endif
125 #endif
126 
127 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
128 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
129 #define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x))
130 #define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x))
131 #define STBTT_assert(x) IM_ASSERT(x)
132 #define STBTT_fmod(x,y) ImFmod(x,y)
133 #define STBTT_sqrt(x) ImSqrt(x)
134 #define STBTT_pow(x,y) ImPow(x,y)
135 #define STBTT_fabs(x) ImFabs(x)
136 #define STBTT_ifloor(x) ((int)ImFloorStd(x))
137 #define STBTT_iceil(x) ((int)ImCeil(x))
138 #define STBTT_STATIC
139 #define STB_TRUETYPE_IMPLEMENTATION
140 #else
141 #define STBTT_DEF extern
142 #endif
143 #ifdef IMGUI_STB_TRUETYPE_FILENAME
144 #include IMGUI_STB_TRUETYPE_FILENAME
145 #else
146 #include "imstb_truetype.h"
147 #endif
148 #endif
149 
150 #ifdef __GNUC__
151 #pragma GCC diagnostic pop
152 #endif
153 
154 #ifdef __clang__
155 #pragma clang diagnostic pop
156 #endif
157 
158 #ifdef _MSC_VER
159 #pragma warning (pop)
160 #endif
161 
162 #ifdef IMGUI_STB_NAMESPACE
163 } // namespace ImGuiStb
164 using namespace IMGUI_STB_NAMESPACE;
165 #endif
166 
167 //-----------------------------------------------------------------------------
168 // [SECTION] Style functions
169 //-----------------------------------------------------------------------------
170 
171 void ImGui::StyleColorsDark(ImGuiStyle* dst)
172 {
173  ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
174  ImVec4* colors = style->Colors;
175 
176  colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
177  colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
178  colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
179  colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
180  colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
181  colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
182  colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
183  colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
184  colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
185  colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
186  colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
187  colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
188  colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
189  colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
190  colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
191  colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
192  colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
193  colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
194  colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
195  colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
196  colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
197  colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
198  colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
199  colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
200  colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
201  colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
202  colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
203  colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
204  colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
205  colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
206  colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
207  colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
208  colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
209  colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
210  colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
211  colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
212  colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
213  colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
214  colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
215  colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
216  colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
217  colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
218  colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
219  colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
220  colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
221  colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
222  colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
223  colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
224 }
225 
226 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
227 {
228  ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
229  ImVec4* colors = style->Colors;
230 
231  colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
232  colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
233  colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
234  colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
235  colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
236  colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
237  colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
238  colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
239  colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
240  colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
241  colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
242  colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
243  colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
244  colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
245  colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
246  colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
247  colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
248  colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
249  colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
250  colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
251  colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
252  colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
253  colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
254  colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
255  colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
256  colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
257  colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
258  colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
259  colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
260  colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
261  colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
262  colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
263  colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
264  colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
265  colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
266  colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
267  colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
268  colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
269  colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
270  colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
271  colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
272  colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
273  colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
274  colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
275  colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
276  colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
277  colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
278  colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
279 }
280 
281 // Those light colors are better suited with a thicker font than the default one + FrameBorder
282 void ImGui::StyleColorsLight(ImGuiStyle* dst)
283 {
284  ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
285  ImVec4* colors = style->Colors;
286 
287  colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
288  colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
289  colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
290  colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
291  colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
292  colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
293  colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
294  colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
295  colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
296  colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
297  colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
298  colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
299  colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
300  colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
301  colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
302  colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
303  colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
304  colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
305  colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
306  colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
307  colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
308  colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
309  colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
310  colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
311  colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
312  colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
313  colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
314  colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
315  colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
316  colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
317  colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
318  colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
319  colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
320  colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
321  colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
322  colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
323  colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
324  colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
325  colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
326  colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
327  colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
328  colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
329  colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
330  colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
331  colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
332  colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
333  colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
334  colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
335 }
336 
337 //-----------------------------------------------------------------------------
338 // ImDrawList
339 //-----------------------------------------------------------------------------
340 
341 ImDrawListSharedData::ImDrawListSharedData()
342 {
343  Font = NULL;
344  FontSize = 0.0f;
345  CurveTessellationTol = 0.0f;
346  ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
347 
348  // Const data
349  for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
350  {
351  const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
352  CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a));
353  }
354 }
355 
356 void ImDrawList::Clear()
357 {
358  CmdBuffer.resize(0);
359  IdxBuffer.resize(0);
360  VtxBuffer.resize(0);
361  Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill;
362  _VtxCurrentIdx = 0;
363  _VtxWritePtr = NULL;
364  _IdxWritePtr = NULL;
365  _ClipRectStack.resize(0);
366  _TextureIdStack.resize(0);
367  _Path.resize(0);
368  _ChannelsCurrent = 0;
369  _ChannelsCount = 1;
370  // NB: Do not clear channels so our allocations are re-used after the first frame.
371 }
372 
373 void ImDrawList::ClearFreeMemory()
374 {
375  CmdBuffer.clear();
376  IdxBuffer.clear();
377  VtxBuffer.clear();
378  _VtxCurrentIdx = 0;
379  _VtxWritePtr = NULL;
380  _IdxWritePtr = NULL;
381  _ClipRectStack.clear();
382  _TextureIdStack.clear();
383  _Path.clear();
384  _ChannelsCurrent = 0;
385  _ChannelsCount = 1;
386  for (int i = 0; i < _Channels.Size; i++)
387  {
388  if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again
389  _Channels[i].CmdBuffer.clear();
390  _Channels[i].IdxBuffer.clear();
391  }
392  _Channels.clear();
393 }
394 
395 ImDrawList* ImDrawList::CloneOutput() const
396 {
397  ImDrawList* dst = IM_NEW(ImDrawList(NULL));
398  dst->CmdBuffer = CmdBuffer;
399  dst->IdxBuffer = IdxBuffer;
400  dst->VtxBuffer = VtxBuffer;
401  dst->Flags = Flags;
402  return dst;
403 }
404 
405 // Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
406 #define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : _Data->ClipRectFullscreen)
407 #define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL)
408 
409 void ImDrawList::AddDrawCmd()
410 {
411  ImDrawCmd draw_cmd;
412  draw_cmd.ClipRect = GetCurrentClipRect();
413  draw_cmd.TextureId = GetCurrentTextureId();
414 
415  IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
416  CmdBuffer.push_back(draw_cmd);
417 }
418 
419 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
420 {
421  ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
422  if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL)
423  {
424  AddDrawCmd();
425  current_cmd = &CmdBuffer.back();
426  }
427  current_cmd->UserCallback = callback;
428  current_cmd->UserCallbackData = callback_data;
429 
430  AddDrawCmd(); // Force a new command after us (see comment below)
431 }
432 
433 // 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.
434 // 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.
435 void ImDrawList::UpdateClipRect()
436 {
437  // If current command is used with different settings we need to add a new command
438  const ImVec4 curr_clip_rect = GetCurrentClipRect();
439  ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL;
440  if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL)
441  {
442  AddDrawCmd();
443  return;
444  }
445 
446  // Try to merge with previous command if it matches, else use current command
447  ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
448  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)
449  CmdBuffer.pop_back();
450  else
451  curr_cmd->ClipRect = curr_clip_rect;
452 }
453 
454 void ImDrawList::UpdateTextureID()
455 {
456  // If current command is used with different settings we need to add a new command
457  const ImTextureID curr_texture_id = GetCurrentTextureId();
458  ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
459  if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL)
460  {
461  AddDrawCmd();
462  return;
463  }
464 
465  // Try to merge with previous command if it matches, else use current command
466  ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
467  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)
468  CmdBuffer.pop_back();
469  else
470  curr_cmd->TextureId = curr_texture_id;
471 }
472 
473 #undef GetCurrentClipRect
474 #undef GetCurrentTextureId
475 
476 // 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)
477 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
478 {
479  ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
480  if (intersect_with_current_clip_rect && _ClipRectStack.Size)
481  {
482  ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1];
483  if (cr.x < current.x) cr.x = current.x;
484  if (cr.y < current.y) cr.y = current.y;
485  if (cr.z > current.z) cr.z = current.z;
486  if (cr.w > current.w) cr.w = current.w;
487  }
488  cr.z = ImMax(cr.x, cr.z);
489  cr.w = ImMax(cr.y, cr.w);
490 
491  _ClipRectStack.push_back(cr);
492  UpdateClipRect();
493 }
494 
495 void ImDrawList::PushClipRectFullScreen()
496 {
497  PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
498 }
499 
500 void ImDrawList::PopClipRect()
501 {
502  IM_ASSERT(_ClipRectStack.Size > 0);
503  _ClipRectStack.pop_back();
504  UpdateClipRect();
505 }
506 
507 void ImDrawList::PushTextureID(ImTextureID texture_id)
508 {
509  _TextureIdStack.push_back(texture_id);
510  UpdateTextureID();
511 }
512 
513 void ImDrawList::PopTextureID()
514 {
515  IM_ASSERT(_TextureIdStack.Size > 0);
516  _TextureIdStack.pop_back();
517  UpdateTextureID();
518 }
519 
520 void ImDrawList::ChannelsSplit(int channels_count)
521 {
522  IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1);
523  int old_channels_count = _Channels.Size;
524  if (old_channels_count < channels_count)
525  _Channels.resize(channels_count);
526  _ChannelsCount = channels_count;
527 
528  // _Channels[] (24/32 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer
529  // 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.
530  // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer
531  memset(&_Channels[0], 0, sizeof(ImDrawChannel));
532  for (int i = 1; i < channels_count; i++)
533  {
534  if (i >= old_channels_count)
535  {
536  IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
537  }
538  else
539  {
540  _Channels[i].CmdBuffer.resize(0);
541  _Channels[i].IdxBuffer.resize(0);
542  }
543  if (_Channels[i].CmdBuffer.Size == 0)
544  {
545  ImDrawCmd draw_cmd;
546  draw_cmd.ClipRect = _ClipRectStack.back();
547  draw_cmd.TextureId = _TextureIdStack.back();
548  _Channels[i].CmdBuffer.push_back(draw_cmd);
549  }
550  }
551 }
552 
553 void ImDrawList::ChannelsMerge()
554 {
555  // 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.
556  if (_ChannelsCount <= 1)
557  return;
558 
559  ChannelsSetCurrent(0);
560  if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0)
561  CmdBuffer.pop_back();
562 
563  int new_cmd_buffer_count = 0, new_idx_buffer_count = 0;
564  for (int i = 1; i < _ChannelsCount; i++)
565  {
566  ImDrawChannel& ch = _Channels[i];
567  if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0)
568  ch.CmdBuffer.pop_back();
569  new_cmd_buffer_count += ch.CmdBuffer.Size;
570  new_idx_buffer_count += ch.IdxBuffer.Size;
571  }
572  CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count);
573  IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count);
574 
575  ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count;
576  _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count;
577  for (int i = 1; i < _ChannelsCount; i++)
578  {
579  ImDrawChannel& ch = _Channels[i];
580  if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
581  if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; }
582  }
583  UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
584  _ChannelsCount = 1;
585 }
586 
587 void ImDrawList::ChannelsSetCurrent(int idx)
588 {
589  IM_ASSERT(idx < _ChannelsCount);
590  if (_ChannelsCurrent == idx) return;
591  memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times
592  memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer));
593  _ChannelsCurrent = idx;
594  memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer));
595  memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer));
596  _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size;
597 }
598 
599 // NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
600 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
601 {
602  ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1];
603  draw_cmd.ElemCount += idx_count;
604 
605  int vtx_buffer_old_size = VtxBuffer.Size;
606  VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
607  _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
608 
609  int idx_buffer_old_size = IdxBuffer.Size;
610  IdxBuffer.resize(idx_buffer_old_size + idx_count);
611  _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
612 }
613 
614 // Fully unrolled with inline call to keep our debug builds decently fast.
615 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
616 {
617  ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
618  ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
619  _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
620  _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
621  _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
622  _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
623  _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
624  _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
625  _VtxWritePtr += 4;
626  _VtxCurrentIdx += 4;
627  _IdxWritePtr += 6;
628 }
629 
630 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
631 {
632  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);
633  ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
634  _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
635  _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
636  _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
637  _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
638  _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
639  _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
640  _VtxWritePtr += 4;
641  _VtxCurrentIdx += 4;
642  _IdxWritePtr += 6;
643 }
644 
645 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)
646 {
647  ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
648  _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
649  _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
650  _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
651  _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
652  _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
653  _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
654  _VtxWritePtr += 4;
655  _VtxCurrentIdx += 4;
656  _IdxWritePtr += 6;
657 }
658 
659 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superflous function calls to optimize debug/non-inlined builds.
660 // Those macros expects l-values.
661 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } }
662 #define IM_NORMALIZE2F_OVER_EPSILON_CLAMP(VX,VY,EPS,INVLENMAX) { float d2 = VX*VX + VY*VY; if (d2 > EPS) { float inv_len = 1.0f / ImSqrt(d2); if (inv_len > INVLENMAX) inv_len = INVLENMAX; VX *= inv_len; VY *= inv_len; } }
663 
664 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
665 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
666 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
667 {
668  if (points_count < 2)
669  return;
670 
671  const ImVec2 uv = _Data->TexUvWhitePixel;
672 
673  int count = points_count;
674  if (!closed)
675  count = points_count-1;
676 
677  const bool thick_line = thickness > 1.0f;
678  if (Flags & ImDrawListFlags_AntiAliasedLines)
679  {
680  // Anti-aliased stroke
681  const float AA_SIZE = 1.0f;
682  const ImU32 col_trans = col & ~IM_COL32_A_MASK;
683 
684  const int idx_count = thick_line ? count*18 : count*12;
685  const int vtx_count = thick_line ? points_count*4 : points_count*3;
686  PrimReserve(idx_count, vtx_count);
687 
688  // Temporary buffer
689  ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2));
690  ImVec2* temp_points = temp_normals + points_count;
691 
692  for (int i1 = 0; i1 < count; i1++)
693  {
694  const int i2 = (i1+1) == points_count ? 0 : i1+1;
695  float dx = points[i2].x - points[i1].x;
696  float dy = points[i2].y - points[i1].y;
697  IM_NORMALIZE2F_OVER_ZERO(dx, dy);
698  temp_normals[i1].x = dy;
699  temp_normals[i1].y = -dx;
700  }
701  if (!closed)
702  temp_normals[points_count-1] = temp_normals[points_count-2];
703 
704  if (!thick_line)
705  {
706  if (!closed)
707  {
708  temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
709  temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
710  temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE;
711  temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE;
712  }
713 
714  // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
715  unsigned int idx1 = _VtxCurrentIdx;
716  for (int i1 = 0; i1 < count; i1++)
717  {
718  const int i2 = (i1+1) == points_count ? 0 : i1+1;
719  unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3;
720 
721  // Average normals
722  float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
723  float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
724  IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f)
725  dm_x *= AA_SIZE;
726  dm_y *= AA_SIZE;
727 
728  // Add temporary vertexes
729  ImVec2* out_vtx = &temp_points[i2*2];
730  out_vtx[0].x = points[i2].x + dm_x;
731  out_vtx[0].y = points[i2].y + dm_y;
732  out_vtx[1].x = points[i2].x - dm_x;
733  out_vtx[1].y = points[i2].y - dm_y;
734 
735  // Add indexes
736  _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
737  _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0);
738  _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
739  _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1);
740  _IdxWritePtr += 12;
741 
742  idx1 = idx2;
743  }
744 
745  // Add vertexes
746  for (int i = 0; i < points_count; i++)
747  {
748  _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
749  _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;
750  _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans;
751  _VtxWritePtr += 3;
752  }
753  }
754  else
755  {
756  const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
757  if (!closed)
758  {
759  temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
760  temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
761  temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
762  temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
763  temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
764  temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness);
765  temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness);
766  temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
767  }
768 
769  // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
770  unsigned int idx1 = _VtxCurrentIdx;
771  for (int i1 = 0; i1 < count; i1++)
772  {
773  const int i2 = (i1+1) == points_count ? 0 : i1+1;
774  unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4;
775 
776  // Average normals
777  float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
778  float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
779  IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f);
780  float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
781  float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
782  float dm_in_x = dm_x * half_inner_thickness;
783  float dm_in_y = dm_y * half_inner_thickness;
784 
785  // Add temporary vertexes
786  ImVec2* out_vtx = &temp_points[i2*4];
787  out_vtx[0].x = points[i2].x + dm_out_x;
788  out_vtx[0].y = points[i2].y + dm_out_y;
789  out_vtx[1].x = points[i2].x + dm_in_x;
790  out_vtx[1].y = points[i2].y + dm_in_y;
791  out_vtx[2].x = points[i2].x - dm_in_x;
792  out_vtx[2].y = points[i2].y - dm_in_y;
793  out_vtx[3].x = points[i2].x - dm_out_x;
794  out_vtx[3].y = points[i2].y - dm_out_y;
795 
796  // Add indexes
797  _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
798  _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1);
799  _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
800  _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1);
801  _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3);
802  _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2);
803  _IdxWritePtr += 18;
804 
805  idx1 = idx2;
806  }
807 
808  // Add vertexes
809  for (int i = 0; i < points_count; i++)
810  {
811  _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans;
812  _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
813  _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
814  _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans;
815  _VtxWritePtr += 4;
816  }
817  }
818  _VtxCurrentIdx += (ImDrawIdx)vtx_count;
819  }
820  else
821  {
822  // Non Anti-aliased Stroke
823  const int idx_count = count*6;
824  const int vtx_count = count*4; // FIXME-OPT: Not sharing edges
825  PrimReserve(idx_count, vtx_count);
826 
827  for (int i1 = 0; i1 < count; i1++)
828  {
829  const int i2 = (i1+1) == points_count ? 0 : i1+1;
830  const ImVec2& p1 = points[i1];
831  const ImVec2& p2 = points[i2];
832 
833  float dx = p2.x - p1.x;
834  float dy = p2.y - p1.y;
835  IM_NORMALIZE2F_OVER_ZERO(dx, dy);
836  dx *= (thickness * 0.5f);
837  dy *= (thickness * 0.5f);
838 
839  _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
840  _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
841  _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
842  _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
843  _VtxWritePtr += 4;
844 
845  _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2);
846  _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3);
847  _IdxWritePtr += 6;
848  _VtxCurrentIdx += 4;
849  }
850  }
851 }
852 
853 // We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
854 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
855 {
856  if (points_count < 3)
857  return;
858 
859  const ImVec2 uv = _Data->TexUvWhitePixel;
860 
861  if (Flags & ImDrawListFlags_AntiAliasedFill)
862  {
863  // Anti-aliased Fill
864  const float AA_SIZE = 1.0f;
865  const ImU32 col_trans = col & ~IM_COL32_A_MASK;
866  const int idx_count = (points_count-2)*3 + points_count*6;
867  const int vtx_count = (points_count*2);
868  PrimReserve(idx_count, vtx_count);
869 
870  // Add indexes for fill
871  unsigned int vtx_inner_idx = _VtxCurrentIdx;
872  unsigned int vtx_outer_idx = _VtxCurrentIdx+1;
873  for (int i = 2; i < points_count; i++)
874  {
875  _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1));
876  _IdxWritePtr += 3;
877  }
878 
879  // Compute normals
880  ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2));
881  for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
882  {
883  const ImVec2& p0 = points[i0];
884  const ImVec2& p1 = points[i1];
885  float dx = p1.x - p0.x;
886  float dy = p1.y - p0.y;
887  IM_NORMALIZE2F_OVER_ZERO(dx, dy);
888  temp_normals[i0].x = dy;
889  temp_normals[i0].y = -dx;
890  }
891 
892  for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
893  {
894  // Average normals
895  const ImVec2& n0 = temp_normals[i0];
896  const ImVec2& n1 = temp_normals[i1];
897  float dm_x = (n0.x + n1.x) * 0.5f;
898  float dm_y = (n0.y + n1.y) * 0.5f;
899  IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f);
900  dm_x *= AA_SIZE * 0.5f;
901  dm_y *= AA_SIZE * 0.5f;
902 
903  // Add vertices
904  _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
905  _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
906  _VtxWritePtr += 2;
907 
908  // Add indexes for fringes
909  _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1));
910  _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1));
911  _IdxWritePtr += 6;
912  }
913  _VtxCurrentIdx += (ImDrawIdx)vtx_count;
914  }
915  else
916  {
917  // Non Anti-aliased Fill
918  const int idx_count = (points_count-2)*3;
919  const int vtx_count = points_count;
920  PrimReserve(idx_count, vtx_count);
921  for (int i = 0; i < vtx_count; i++)
922  {
923  _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
924  _VtxWritePtr++;
925  }
926  for (int i = 2; i < points_count; i++)
927  {
928  _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i);
929  _IdxWritePtr += 3;
930  }
931  _VtxCurrentIdx += (ImDrawIdx)vtx_count;
932  }
933 }
934 
935 void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12)
936 {
937  if (radius == 0.0f || a_min_of_12 > a_max_of_12)
938  {
939  _Path.push_back(centre);
940  return;
941  }
942  _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
943  for (int a = a_min_of_12; a <= a_max_of_12; a++)
944  {
945  const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
946  _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
947  }
948 }
949 
950 void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments)
951 {
952  if (radius == 0.0f)
953  {
954  _Path.push_back(centre);
955  return;
956  }
957  _Path.reserve(_Path.Size + (num_segments + 1));
958  for (int i = 0; i <= num_segments; i++)
959  {
960  const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
961  _Path.push_back(ImVec2(centre.x + ImCos(a) * radius, centre.y + ImSin(a) * radius));
962  }
963 }
964 
965 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)
966 {
967  float dx = x4 - x1;
968  float dy = y4 - y1;
969  float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
970  float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
971  d2 = (d2 >= 0) ? d2 : -d2;
972  d3 = (d3 >= 0) ? d3 : -d3;
973  if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy))
974  {
975  path->push_back(ImVec2(x4, y4));
976  }
977  else if (level < 10)
978  {
979  float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f;
980  float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f;
981  float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f;
982  float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f;
983  float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f;
984  float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f;
985 
986  PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1);
987  PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1);
988  }
989 }
990 
991 void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
992 {
993  ImVec2 p1 = _Path.back();
994  if (num_segments == 0)
995  {
996  // Auto-tessellated
997  PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0);
998  }
999  else
1000  {
1001  float t_step = 1.0f / (float)num_segments;
1002  for (int i_step = 1; i_step <= num_segments; i_step++)
1003  {
1004  float t = t_step * i_step;
1005  float u = 1.0f - t;
1006  float w1 = u*u*u;
1007  float w2 = 3*u*u*t;
1008  float w3 = 3*u*t*t;
1009  float w4 = t*t*t;
1010  _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));
1011  }
1012  }
1013 }
1014 
1015 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
1016 {
1017  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);
1018  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);
1019 
1020  if (rounding <= 0.0f || rounding_corners == 0)
1021  {
1022  PathLineTo(a);
1023  PathLineTo(ImVec2(b.x, a.y));
1024  PathLineTo(b);
1025  PathLineTo(ImVec2(a.x, b.y));
1026  }
1027  else
1028  {
1029  const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1030  const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1031  const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1032  const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1033  PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1034  PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1035  PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1036  PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1037  }
1038 }
1039 
1040 void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
1041 {
1042  if ((col & IM_COL32_A_MASK) == 0)
1043  return;
1044  PathLineTo(a + ImVec2(0.5f,0.5f));
1045  PathLineTo(b + ImVec2(0.5f,0.5f));
1046  PathStroke(col, false, thickness);
1047 }
1048 
1049 // a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly.
1050 void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness)
1051 {
1052  if ((col & IM_COL32_A_MASK) == 0)
1053  return;
1054  if (Flags & ImDrawListFlags_AntiAliasedLines)
1055  PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags);
1056  else
1057  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.
1058  PathStroke(col, true, thickness);
1059 }
1060 
1061 void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags)
1062 {
1063  if ((col & IM_COL32_A_MASK) == 0)
1064  return;
1065  if (rounding > 0.0f)
1066  {
1067  PathRect(a, b, rounding, rounding_corners_flags);
1068  PathFillConvex(col);
1069  }
1070  else
1071  {
1072  PrimReserve(6, 4);
1073  PrimRect(a, b, col);
1074  }
1075 }
1076 
1077 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)
1078 {
1079  if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1080  return;
1081 
1082  const ImVec2 uv = _Data->TexUvWhitePixel;
1083  PrimReserve(6, 4);
1084  PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2));
1085  PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3));
1086  PrimWriteVtx(a, uv, col_upr_left);
1087  PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right);
1088  PrimWriteVtx(c, uv, col_bot_right);
1089  PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left);
1090 }
1091 
1092 void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness)
1093 {
1094  if ((col & IM_COL32_A_MASK) == 0)
1095  return;
1096 
1097  PathLineTo(a);
1098  PathLineTo(b);
1099  PathLineTo(c);
1100  PathLineTo(d);
1101  PathStroke(col, true, thickness);
1102 }
1103 
1104 void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col)
1105 {
1106  if ((col & IM_COL32_A_MASK) == 0)
1107  return;
1108 
1109  PathLineTo(a);
1110  PathLineTo(b);
1111  PathLineTo(c);
1112  PathLineTo(d);
1113  PathFillConvex(col);
1114 }
1115 
1116 void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
1117 {
1118  if ((col & IM_COL32_A_MASK) == 0)
1119  return;
1120 
1121  PathLineTo(a);
1122  PathLineTo(b);
1123  PathLineTo(c);
1124  PathStroke(col, true, thickness);
1125 }
1126 
1127 void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)
1128 {
1129  if ((col & IM_COL32_A_MASK) == 0)
1130  return;
1131 
1132  PathLineTo(a);
1133  PathLineTo(b);
1134  PathLineTo(c);
1135  PathFillConvex(col);
1136 }
1137 
1138 void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
1139 {
1140  if ((col & IM_COL32_A_MASK) == 0)
1141  return;
1142 
1143  const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1144  PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments);
1145  PathStroke(col, true, thickness);
1146 }
1147 
1148 void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
1149 {
1150  if ((col & IM_COL32_A_MASK) == 0)
1151  return;
1152 
1153  const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
1154  PathArcTo(centre, radius, 0.0f, a_max, num_segments);
1155  PathFillConvex(col);
1156 }
1157 
1158 void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
1159 {
1160  if ((col & IM_COL32_A_MASK) == 0)
1161  return;
1162 
1163  PathLineTo(pos0);
1164  PathBezierCurveTo(cp0, cp1, pos1, num_segments);
1165  PathStroke(col, false, thickness);
1166 }
1167 
1168 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)
1169 {
1170  if ((col & IM_COL32_A_MASK) == 0)
1171  return;
1172 
1173  if (text_end == NULL)
1174  text_end = text_begin + strlen(text_begin);
1175  if (text_begin == text_end)
1176  return;
1177 
1178  // Pull default font/size from the shared ImDrawListSharedData instance
1179  if (font == NULL)
1180  font = _Data->Font;
1181  if (font_size == 0.0f)
1182  font_size = _Data->FontSize;
1183 
1184  IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1185 
1186  ImVec4 clip_rect = _ClipRectStack.back();
1187  if (cpu_fine_clip_rect)
1188  {
1189  clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1190  clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1191  clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1192  clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1193  }
1194  font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1195 }
1196 
1197 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1198 {
1199  AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1200 }
1201 
1202 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
1203 {
1204  if ((col & IM_COL32_A_MASK) == 0)
1205  return;
1206 
1207  const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1208  if (push_texture_id)
1209  PushTextureID(user_texture_id);
1210 
1211  PrimReserve(6, 4);
1212  PrimRectUV(a, b, uv_a, uv_b, col);
1213 
1214  if (push_texture_id)
1215  PopTextureID();
1216 }
1217 
1218 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)
1219 {
1220  if ((col & IM_COL32_A_MASK) == 0)
1221  return;
1222 
1223  const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1224  if (push_texture_id)
1225  PushTextureID(user_texture_id);
1226 
1227  PrimReserve(6, 4);
1228  PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
1229 
1230  if (push_texture_id)
1231  PopTextureID();
1232 }
1233 
1234 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)
1235 {
1236  if ((col & IM_COL32_A_MASK) == 0)
1237  return;
1238 
1239  if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1240  {
1241  AddImage(user_texture_id, a, b, uv_a, uv_b, col);
1242  return;
1243  }
1244 
1245  const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1246  if (push_texture_id)
1247  PushTextureID(user_texture_id);
1248 
1249  int vert_start_idx = VtxBuffer.Size;
1250  PathRect(a, b, rounding, rounding_corners);
1251  PathFillConvex(col);
1252  int vert_end_idx = VtxBuffer.Size;
1253  ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, a, b, uv_a, uv_b, true);
1254 
1255  if (push_texture_id)
1256  PopTextureID();
1257 }
1258 
1259 //-----------------------------------------------------------------------------
1260 // [SECTION] ImDrawData
1261 //-----------------------------------------------------------------------------
1262 
1263 // 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!
1264 void ImDrawData::DeIndexAllBuffers()
1265 {
1266  ImVector<ImDrawVert> new_vtx_buffer;
1267  TotalVtxCount = TotalIdxCount = 0;
1268  for (int i = 0; i < CmdListsCount; i++)
1269  {
1270  ImDrawList* cmd_list = CmdLists[i];
1271  if (cmd_list->IdxBuffer.empty())
1272  continue;
1273  new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1274  for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1275  new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1276  cmd_list->VtxBuffer.swap(new_vtx_buffer);
1277  cmd_list->IdxBuffer.resize(0);
1278  TotalVtxCount += cmd_list->VtxBuffer.Size;
1279  }
1280 }
1281 
1282 // 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.
1283 void ImDrawData::ScaleClipRects(const ImVec2& scale)
1284 {
1285  for (int i = 0; i < CmdListsCount; i++)
1286  {
1287  ImDrawList* cmd_list = CmdLists[i];
1288  for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1289  {
1290  ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1291  cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y);
1292  }
1293  }
1294 }
1295 
1296 //-----------------------------------------------------------------------------
1297 // [SECTION] Helpers ShadeVertsXXX functions
1298 //-----------------------------------------------------------------------------
1299 
1300 // Generic linear color gradient, write to RGB fields, leave A untouched.
1301 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1302 {
1303  ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1304  float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1305  ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1306  ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1307  for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1308  {
1309  float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1310  float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1311  int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
1312  int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
1313  int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
1314  vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1315  }
1316 }
1317 
1318 // Distribute UV over (a, b) rectangle
1319 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)
1320 {
1321  const ImVec2 size = b - a;
1322  const ImVec2 uv_size = uv_b - uv_a;
1323  const ImVec2 scale = ImVec2(
1324  size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1325  size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1326 
1327  ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1328  ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1329  if (clamp)
1330  {
1331  const ImVec2 min = ImMin(uv_a, uv_b);
1332  const ImVec2 max = ImMax(uv_a, uv_b);
1333  for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1334  vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1335  }
1336  else
1337  {
1338  for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1339  vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1340  }
1341 }
1342 
1343 //-----------------------------------------------------------------------------
1344 // [SECTION] ImFontConfig
1345 //-----------------------------------------------------------------------------
1346 
1347 ImFontConfig::ImFontConfig()
1348 {
1349  FontData = NULL;
1350  FontDataSize = 0;
1351  FontDataOwnedByAtlas = true;
1352  FontNo = 0;
1353  SizePixels = 0.0f;
1354  OversampleH = 3;
1355  OversampleV = 1;
1356  PixelSnapH = false;
1357  GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1358  GlyphOffset = ImVec2(0.0f, 0.0f);
1359  GlyphRanges = NULL;
1360  GlyphMinAdvanceX = 0.0f;
1361  GlyphMaxAdvanceX = FLT_MAX;
1362  MergeMode = false;
1363  RasterizerFlags = 0x00;
1364  RasterizerMultiply = 1.0f;
1365  memset(Name, 0, sizeof(Name));
1366  DstFont = NULL;
1367 }
1368 
1369 //-----------------------------------------------------------------------------
1370 // [SECTION] ImFontAtlas
1371 //-----------------------------------------------------------------------------
1372 
1373 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1374 // The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes.
1375 const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108;
1376 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1377 const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
1378 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1379 {
1380  "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1381  "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1382  "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1383  "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1384  "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1385  "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1386  "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1387  "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1388  "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1389  "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1390  "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1391  "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1392  "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1393  "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1394  "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1395  "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1396  "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1397  "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1398  "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1399  "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1400  " X..X - X...X - X...X - X..X X..X - - X........X "
1401  " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1402  "------------ - X - X -X.....................X- ------------------"
1403  " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1404  " - X..X X..X - "
1405  " - X.X X.X - "
1406  " - XX XX - "
1407 };
1408 
1409 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1410 {
1411  // Pos ........ Size ......... Offset ......
1412  { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1413  { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1414  { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1415  { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1416  { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1417  { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1418  { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1419  { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1420 };
1421 
1422 ImFontAtlas::ImFontAtlas()
1423 {
1424  Locked = false;
1425  Flags = ImFontAtlasFlags_None;
1426  TexID = (ImTextureID)NULL;
1427  TexDesiredWidth = 0;
1428  TexGlyphPadding = 1;
1429 
1430  TexPixelsAlpha8 = NULL;
1431  TexPixelsRGBA32 = NULL;
1432  TexWidth = TexHeight = 0;
1433  TexUvScale = ImVec2(0.0f, 0.0f);
1434  TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1435  for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1436  CustomRectIds[n] = -1;
1437 }
1438 
1439 ImFontAtlas::~ImFontAtlas()
1440 {
1441  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1442  Clear();
1443 }
1444 
1445 void ImFontAtlas::ClearInputData()
1446 {
1447  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1448  for (int i = 0; i < ConfigData.Size; i++)
1449  if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1450  {
1451  ImGui::MemFree(ConfigData[i].FontData);
1452  ConfigData[i].FontData = NULL;
1453  }
1454 
1455  // When clearing this we lose access to the font name and other information used to build the font.
1456  for (int i = 0; i < Fonts.Size; i++)
1457  if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1458  {
1459  Fonts[i]->ConfigData = NULL;
1460  Fonts[i]->ConfigDataCount = 0;
1461  }
1462  ConfigData.clear();
1463  CustomRects.clear();
1464  for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
1465  CustomRectIds[n] = -1;
1466 }
1467 
1468 void ImFontAtlas::ClearTexData()
1469 {
1470  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1471  if (TexPixelsAlpha8)
1472  ImGui::MemFree(TexPixelsAlpha8);
1473  if (TexPixelsRGBA32)
1474  ImGui::MemFree(TexPixelsRGBA32);
1475  TexPixelsAlpha8 = NULL;
1476  TexPixelsRGBA32 = NULL;
1477 }
1478 
1479 void ImFontAtlas::ClearFonts()
1480 {
1481  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1482  for (int i = 0; i < Fonts.Size; i++)
1483  IM_DELETE(Fonts[i]);
1484  Fonts.clear();
1485 }
1486 
1487 void ImFontAtlas::Clear()
1488 {
1489  ClearInputData();
1490  ClearTexData();
1491  ClearFonts();
1492 }
1493 
1494 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1495 {
1496  // Build atlas on demand
1497  if (TexPixelsAlpha8 == NULL)
1498  {
1499  if (ConfigData.empty())
1500  AddFontDefault();
1501  Build();
1502  }
1503 
1504  *out_pixels = TexPixelsAlpha8;
1505  if (out_width) *out_width = TexWidth;
1506  if (out_height) *out_height = TexHeight;
1507  if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1508 }
1509 
1510 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1511 {
1512  // Convert to RGBA32 format on demand
1513  // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1514  if (!TexPixelsRGBA32)
1515  {
1516  unsigned char* pixels = NULL;
1517  GetTexDataAsAlpha8(&pixels, NULL, NULL);
1518  if (pixels)
1519  {
1520  TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4));
1521  const unsigned char* src = pixels;
1522  unsigned int* dst = TexPixelsRGBA32;
1523  for (int n = TexWidth * TexHeight; n > 0; n--)
1524  *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1525  }
1526  }
1527 
1528  *out_pixels = (unsigned char*)TexPixelsRGBA32;
1529  if (out_width) *out_width = TexWidth;
1530  if (out_height) *out_height = TexHeight;
1531  if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1532 }
1533 
1534 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1535 {
1536  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1537  IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1538  IM_ASSERT(font_cfg->SizePixels > 0.0f);
1539 
1540  // Create new font
1541  if (!font_cfg->MergeMode)
1542  Fonts.push_back(IM_NEW(ImFont));
1543  else
1544  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.
1545 
1546  ConfigData.push_back(*font_cfg);
1547  ImFontConfig& new_font_cfg = ConfigData.back();
1548  if (!new_font_cfg.DstFont)
1549  new_font_cfg.DstFont = Fonts.back();
1550  if (!new_font_cfg.FontDataOwnedByAtlas)
1551  {
1552  new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize);
1553  new_font_cfg.FontDataOwnedByAtlas = true;
1554  memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1555  }
1556 
1557  // Invalidate texture
1558  ClearTexData();
1559  return new_font_cfg.DstFont;
1560 }
1561 
1562 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1563 static unsigned int stb_decompress_length(const unsigned char *input);
1564 static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length);
1565 static const char* GetDefaultCompressedFontDataTTFBase85();
1566 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
1567 static void Decode85(const unsigned char* src, unsigned char* dst)
1568 {
1569  while (*src)
1570  {
1571  unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4]))));
1572  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.
1573  src += 5;
1574  dst += 4;
1575  }
1576 }
1577 
1578 // Load embedded ProggyClean.ttf at size 13, disable oversampling
1579 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1580 {
1581  ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1582  if (!font_cfg_template)
1583  {
1584  font_cfg.OversampleH = font_cfg.OversampleV = 1;
1585  font_cfg.PixelSnapH = true;
1586  }
1587  if (font_cfg.Name[0] == '\0') strcpy(font_cfg.Name, "ProggyClean.ttf, 13px");
1588  if (font_cfg.SizePixels <= 0.0f) font_cfg.SizePixels = 13.0f;
1589 
1590  const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1591  const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1592  ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1593  font->DisplayOffset.y = 1.0f;
1594  return font;
1595 }
1596 
1597 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1598 {
1599  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1600  size_t data_size = 0;
1601  void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1602  if (!data)
1603  {
1604  IM_ASSERT(0); // Could not load file.
1605  return NULL;
1606  }
1607  ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1608  if (font_cfg.Name[0] == '\0')
1609  {
1610  // Store a short copy of filename into into the font name for convenience
1611  const char* p;
1612  for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1613  ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1614  }
1615  return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1616 }
1617 
1618 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
1619 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1620 {
1621  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1622  ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1623  IM_ASSERT(font_cfg.FontData == NULL);
1624  font_cfg.FontData = ttf_data;
1625  font_cfg.FontDataSize = ttf_size;
1626  font_cfg.SizePixels = size_pixels;
1627  if (glyph_ranges)
1628  font_cfg.GlyphRanges = glyph_ranges;
1629  return AddFont(&font_cfg);
1630 }
1631 
1632 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1633 {
1634  const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
1635  unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
1636  stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
1637 
1638  ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1639  IM_ASSERT(font_cfg.FontData == NULL);
1640  font_cfg.FontDataOwnedByAtlas = true;
1641  return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
1642 }
1643 
1644 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
1645 {
1646  int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
1647  void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size);
1648  Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
1649  ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
1650  ImGui::MemFree(compressed_ttf);
1651  return font;
1652 }
1653 
1654 int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height)
1655 {
1656  IM_ASSERT(id >= 0x10000);
1657  IM_ASSERT(width > 0 && width <= 0xFFFF);
1658  IM_ASSERT(height > 0 && height <= 0xFFFF);
1659  CustomRect r;
1660  r.ID = id;
1661  r.Width = (unsigned short)width;
1662  r.Height = (unsigned short)height;
1663  CustomRects.push_back(r);
1664  return CustomRects.Size - 1; // Return index
1665 }
1666 
1667 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
1668 {
1669  IM_ASSERT(font != NULL);
1670  IM_ASSERT(width > 0 && width <= 0xFFFF);
1671  IM_ASSERT(height > 0 && height <= 0xFFFF);
1672  CustomRect r;
1673  r.ID = id;
1674  r.Width = (unsigned short)width;
1675  r.Height = (unsigned short)height;
1676  r.GlyphAdvanceX = advance_x;
1677  r.GlyphOffset = offset;
1678  r.Font = font;
1679  CustomRects.push_back(r);
1680  return CustomRects.Size - 1; // Return index
1681 }
1682 
1683 void ImFontAtlas::CalcCustomRectUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max)
1684 {
1685  IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
1686  IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
1687  *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
1688  *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
1689 }
1690 
1691 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
1692 {
1693  if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
1694  return false;
1695  if (Flags & ImFontAtlasFlags_NoMouseCursors)
1696  return false;
1697 
1698  IM_ASSERT(CustomRectIds[0] != -1);
1699  ImFontAtlas::CustomRect& r = CustomRects[CustomRectIds[0]];
1700  IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
1701  ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y);
1702  ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
1703  *out_size = size;
1704  *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
1705  out_uv_border[0] = (pos) * TexUvScale;
1706  out_uv_border[1] = (pos + size) * TexUvScale;
1707  pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
1708  out_uv_fill[0] = (pos) * TexUvScale;
1709  out_uv_fill[1] = (pos + size) * TexUvScale;
1710  return true;
1711 }
1712 
1713 bool ImFontAtlas::Build()
1714 {
1715  IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1716  return ImFontAtlasBuildWithStbTruetype(this);
1717 }
1718 
1719 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
1720 {
1721  for (unsigned int i = 0; i < 256; i++)
1722  {
1723  unsigned int value = (unsigned int)(i * in_brighten_factor);
1724  out_table[i] = value > 255 ? 255 : (value & 0xFF);
1725  }
1726 }
1727 
1728 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
1729 {
1730  unsigned char* data = pixels + x + y * stride;
1731  for (int j = h; j > 0; j--, data += stride)
1732  for (int i = 0; i < w; i++)
1733  data[i] = table[data[i]];
1734 }
1735 
1736 bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
1737 {
1738  IM_ASSERT(atlas->ConfigData.Size > 0);
1739 
1740  ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
1741 
1742  atlas->TexID = (ImTextureID)NULL;
1743  atlas->TexWidth = atlas->TexHeight = 0;
1744  atlas->TexUvScale = ImVec2(0.0f, 0.0f);
1745  atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1746  atlas->ClearTexData();
1747 
1748  // Count glyphs/ranges
1749  int total_glyphs_count = 0;
1750  int total_ranges_count = 0;
1751  for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1752  {
1753  ImFontConfig& cfg = atlas->ConfigData[input_i];
1754  if (!cfg.GlyphRanges)
1755  cfg.GlyphRanges = atlas->GetGlyphRangesDefault();
1756  for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, total_ranges_count++)
1757  total_glyphs_count += (in_range[1] - in_range[0]) + 1;
1758  }
1759 
1760  // 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.
1761  // Width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
1762  atlas->TexWidth = (atlas->TexDesiredWidth > 0) ? atlas->TexDesiredWidth : (total_glyphs_count > 4000) ? 4096 : (total_glyphs_count > 2000) ? 2048 : (total_glyphs_count > 1000) ? 1024 : 512;
1763  atlas->TexHeight = 0;
1764 
1765  // Start packing
1766  const int max_tex_height = 1024*32;
1767  stbtt_pack_context spc = {};
1768  if (!stbtt_PackBegin(&spc, NULL, atlas->TexWidth, max_tex_height, 0, atlas->TexGlyphPadding, NULL))
1769  return false;
1770  stbtt_PackSetOversampling(&spc, 1, 1);
1771 
1772  // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
1773  ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
1774 
1775  // Initialize font information (so we can error without any cleanup)
1776  struct ImFontTempBuildData
1777  {
1778  stbtt_fontinfo FontInfo;
1779  stbrp_rect* Rects;
1780  int RectsCount;
1781  stbtt_pack_range* Ranges;
1782  int RangesCount;
1783  };
1784  ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)atlas->ConfigData.Size * sizeof(ImFontTempBuildData));
1785  for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1786  {
1787  ImFontConfig& cfg = atlas->ConfigData[input_i];
1788  ImFontTempBuildData& tmp = tmp_array[input_i];
1789  IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
1790 
1791  const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
1792  IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
1793  if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
1794  {
1795  atlas->TexWidth = atlas->TexHeight = 0; // Reset output on failure
1796  ImGui::MemFree(tmp_array);
1797  return false;
1798  }
1799  }
1800 
1801  // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
1802  int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0;
1803  stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbtt_packedchar));
1804  stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyphs_count * sizeof(stbrp_rect));
1805  stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_ranges_count * sizeof(stbtt_pack_range));
1806  memset(buf_packedchars, 0, total_glyphs_count * sizeof(stbtt_packedchar));
1807  memset(buf_rects, 0, total_glyphs_count * sizeof(stbrp_rect)); // Unnecessary but let's clear this for the sake of sanity.
1808  memset(buf_ranges, 0, total_ranges_count * sizeof(stbtt_pack_range));
1809 
1810  // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point)
1811  for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1812  {
1813  ImFontConfig& cfg = atlas->ConfigData[input_i];
1814  ImFontTempBuildData& tmp = tmp_array[input_i];
1815 
1816  // Setup ranges
1817  int font_glyphs_count = 0;
1818  int font_ranges_count = 0;
1819  for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2, font_ranges_count++)
1820  font_glyphs_count += (in_range[1] - in_range[0]) + 1;
1821  tmp.Ranges = buf_ranges + buf_ranges_n;
1822  tmp.RangesCount = font_ranges_count;
1823  buf_ranges_n += font_ranges_count;
1824  for (int i = 0; i < font_ranges_count; i++)
1825  {
1826  const ImWchar* in_range = &cfg.GlyphRanges[i * 2];
1827  stbtt_pack_range& range = tmp.Ranges[i];
1828  range.font_size = cfg.SizePixels;
1829  range.first_unicode_codepoint_in_range = in_range[0];
1830  range.num_chars = (in_range[1] - in_range[0]) + 1;
1831  range.chardata_for_range = buf_packedchars + buf_packedchars_n;
1832  buf_packedchars_n += range.num_chars;
1833  }
1834 
1835  // Gather the sizes of all rectangle we need
1836  tmp.Rects = buf_rects + buf_rects_n;
1837  tmp.RectsCount = font_glyphs_count;
1838  buf_rects_n += font_glyphs_count;
1839  stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
1840  int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
1841  IM_ASSERT(n == font_glyphs_count);
1842 
1843  // Detect missing glyphs and replace them with a zero-sized box instead of relying on the default glyphs
1844  // This allows us merging overlapping icon fonts more easily.
1845  int rect_i = 0;
1846  for (int range_i = 0; range_i < tmp.RangesCount; range_i++)
1847  for (int char_i = 0; char_i < tmp.Ranges[range_i].num_chars; char_i++, rect_i++)
1848  if (stbtt_FindGlyphIndex(&tmp.FontInfo, tmp.Ranges[range_i].first_unicode_codepoint_in_range + char_i) == 0)
1849  tmp.Rects[rect_i].w = tmp.Rects[rect_i].h = 0;
1850 
1851  // Pack
1852  stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n);
1853 
1854  // Extend texture height
1855  // Also mark missing glyphs as non-packed so we don't attempt to render into them
1856  for (int i = 0; i < n; i++)
1857  {
1858  if (tmp.Rects[i].w == 0 && tmp.Rects[i].h == 0)
1859  tmp.Rects[i].was_packed = 0;
1860  if (tmp.Rects[i].was_packed)
1861  atlas->TexHeight = ImMax(atlas->TexHeight, tmp.Rects[i].y + tmp.Rects[i].h);
1862  }
1863  }
1864  IM_ASSERT(buf_rects_n == total_glyphs_count);
1865  IM_ASSERT(buf_packedchars_n == total_glyphs_count);
1866  IM_ASSERT(buf_ranges_n == total_ranges_count);
1867 
1868  // Create texture
1869  atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
1870  atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
1871  atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight);
1872  memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
1873  spc.pixels = atlas->TexPixelsAlpha8;
1874  spc.height = atlas->TexHeight;
1875 
1876  // Second pass: render font characters
1877  for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1878  {
1879  ImFontConfig& cfg = atlas->ConfigData[input_i];
1880  ImFontTempBuildData& tmp = tmp_array[input_i];
1881  stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
1882  stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
1883  if (cfg.RasterizerMultiply != 1.0f)
1884  {
1885  unsigned char multiply_table[256];
1886  ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
1887  for (const stbrp_rect* r = tmp.Rects; r != tmp.Rects + tmp.RectsCount; r++)
1888  if (r->was_packed)
1889  ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, spc.pixels, r->x, r->y, r->w, r->h, spc.stride_in_bytes);
1890  }
1891  tmp.Rects = NULL;
1892  }
1893 
1894  // End packing
1895  stbtt_PackEnd(&spc);
1896  ImGui::MemFree(buf_rects);
1897  buf_rects = NULL;
1898 
1899  // Third pass: setup ImFont and glyphs for runtime
1900  for (int input_i = 0; input_i < atlas->ConfigData.Size; input_i++)
1901  {
1902  ImFontConfig& cfg = atlas->ConfigData[input_i];
1903  ImFontTempBuildData& tmp = tmp_array[input_i];
1904  ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
1905  if (cfg.MergeMode)
1906  dst_font->BuildLookupTable();
1907 
1908  const float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
1909  int unscaled_ascent, unscaled_descent, unscaled_line_gap;
1910  stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
1911 
1912  const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
1913  const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
1914  ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
1915  const float font_off_x = cfg.GlyphOffset.x;
1916  const float font_off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f);
1917 
1918  for (int i = 0; i < tmp.RangesCount; i++)
1919  {
1920  stbtt_pack_range& range = tmp.Ranges[i];
1921  for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1)
1922  {
1923  const stbtt_packedchar& pc = range.chardata_for_range[char_idx];
1924  if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1)
1925  continue;
1926 
1927  const int codepoint = range.first_unicode_codepoint_in_range + char_idx;
1928  if (cfg.MergeMode && dst_font->FindGlyphNoFallback((ImWchar)codepoint))
1929  continue;
1930 
1931  float char_advance_x_org = pc.xadvance;
1932  float char_advance_x_mod = ImClamp(char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX);
1933  float char_off_x = font_off_x;
1934  if (char_advance_x_org != char_advance_x_mod)
1935  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;
1936 
1937  stbtt_aligned_quad q;
1938  float dummy_x = 0.0f, dummy_y = 0.0f;
1939  stbtt_GetPackedQuad(range.chardata_for_range, atlas->TexWidth, atlas->TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0);
1940  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);
1941  }
1942  }
1943  }
1944 
1945  // Cleanup temporaries
1946  ImGui::MemFree(buf_packedchars);
1947  ImGui::MemFree(buf_ranges);
1948  ImGui::MemFree(tmp_array);
1949 
1950  ImFontAtlasBuildFinish(atlas);
1951 
1952  return true;
1953 }
1954 
1955 void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas)
1956 {
1957  if (atlas->CustomRectIds[0] >= 0)
1958  return;
1959  if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
1960  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);
1961  else
1962  atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2);
1963 }
1964 
1965 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
1966 {
1967  if (!font_config->MergeMode)
1968  {
1969  font->ClearOutputData();
1970  font->FontSize = font_config->SizePixels;
1971  font->ConfigData = font_config;
1972  font->ContainerAtlas = atlas;
1973  font->Ascent = ascent;
1974  font->Descent = descent;
1975  }
1976  font->ConfigDataCount++;
1977 }
1978 
1979 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* pack_context_opaque)
1980 {
1981  stbrp_context* pack_context = (stbrp_context*)pack_context_opaque;
1982 
1983  ImVector<ImFontAtlas::CustomRect>& user_rects = atlas->CustomRects;
1984  IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
1985 
1986  ImVector<stbrp_rect> pack_rects;
1987  pack_rects.resize(user_rects.Size);
1988  memset(pack_rects.Data, 0, sizeof(stbrp_rect) * user_rects.Size);
1989  for (int i = 0; i < user_rects.Size; i++)
1990  {
1991  pack_rects[i].w = user_rects[i].Width;
1992  pack_rects[i].h = user_rects[i].Height;
1993  }
1994  stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
1995  for (int i = 0; i < pack_rects.Size; i++)
1996  if (pack_rects[i].was_packed)
1997  {
1998  user_rects[i].X = pack_rects[i].x;
1999  user_rects[i].Y = pack_rects[i].y;
2000  IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2001  atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2002  }
2003 }
2004 
2005 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2006 {
2007  IM_ASSERT(atlas->CustomRectIds[0] >= 0);
2008  IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
2009  ImFontAtlas::CustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
2010  IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
2011  IM_ASSERT(r.IsPacked());
2012 
2013  const int w = atlas->TexWidth;
2014  if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2015  {
2016  // Render/copy pixels
2017  IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2018  for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++)
2019  for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++)
2020  {
2021  const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w;
2022  const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
2023  atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
2024  atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
2025  }
2026  }
2027  else
2028  {
2029  IM_ASSERT(r.Width == 2 && r.Height == 2);
2030  const int offset = (int)(r.X) + (int)(r.Y) * w;
2031  atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2032  }
2033  atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y);
2034 }
2035 
2036 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2037 {
2038  // Render into our custom data block
2039  ImFontAtlasBuildRenderDefaultTexData(atlas);
2040 
2041  // Register custom rectangle glyphs
2042  for (int i = 0; i < atlas->CustomRects.Size; i++)
2043  {
2044  const ImFontAtlas::CustomRect& r = atlas->CustomRects[i];
2045  if (r.Font == NULL || r.ID > 0x10000)
2046  continue;
2047 
2048  IM_ASSERT(r.Font->ContainerAtlas == atlas);
2049  ImVec2 uv0, uv1;
2050  atlas->CalcCustomRectUV(&r, &uv0, &uv1);
2051  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);
2052  }
2053 
2054  // Build all fonts lookup tables
2055  for (int i = 0; i < atlas->Fonts.Size; i++)
2056  if (atlas->Fonts[i]->DirtyLookupTables)
2057  atlas->Fonts[i]->BuildLookupTable();
2058 }
2059 
2060 // Retrieve list of range (2 int per range, values are inclusive)
2061 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2062 {
2063  static const ImWchar ranges[] =
2064  {
2065  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2066  0,
2067  };
2068  return &ranges[0];
2069 }
2070 
2071 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2072 {
2073  static const ImWchar ranges[] =
2074  {
2075  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2076  0x3131, 0x3163, // Korean alphabets
2077  0xAC00, 0xD79D, // Korean characters
2078  0,
2079  };
2080  return &ranges[0];
2081 }
2082 
2083 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2084 {
2085  static const ImWchar ranges[] =
2086  {
2087  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2088  0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2089  0x31F0, 0x31FF, // Katakana Phonetic Extensions
2090  0xFF00, 0xFFEF, // Half-width characters
2091  0x4e00, 0x9FAF, // CJK Ideograms
2092  0,
2093  };
2094  return &ranges[0];
2095 }
2096 
2097 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2098 {
2099  for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2100  {
2101  out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2102  base_codepoint += accumulative_offsets[n];
2103  }
2104  out_ranges[0] = 0;
2105 }
2106 
2107 //-------------------------------------------------------------------------
2108 // [SECTION] ImFontAtlas glyph ranges helpers
2109 //-------------------------------------------------------------------------
2110 
2111 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2112 {
2113  // Store 2500 regularly used characters for Simplified Chinese.
2114  // 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
2115  // This table covers 97.97% of all characters used during the month in July, 1987.
2116  // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2117  // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2118  static const short accumulative_offsets_from_0x4E00[] =
2119  {
2120  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,
2121  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,
2122  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,
2123  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,
2124  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,
2125  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,
2126  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,
2127  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,
2128  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,
2129  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,
2130  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,
2131  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,
2132  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,
2133  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,
2134  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,
2135  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,
2136  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,
2137  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,
2138  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,
2139  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,
2140  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,
2141  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,
2142  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,
2143  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,
2144  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,
2145  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,
2146  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,
2147  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,
2148  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,
2149  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,
2150  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,
2151  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,
2152  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,
2153  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,
2154  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,
2155  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,
2156  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,
2157  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,
2158  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,
2159  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
2160  };
2161  static ImWchar base_ranges[] = // not zero-terminated
2162  {
2163  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2164  0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2165  0x31F0, 0x31FF, // Katakana Phonetic Extensions
2166  0xFF00, 0xFFEF, // Half-width characters
2167  };
2168  static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2169  if (!full_ranges[0])
2170  {
2171  memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2172  UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2173  }
2174  return &full_ranges[0];
2175 }
2176 
2177 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2178 {
2179  // 1946 common ideograms code points for Japanese
2180  // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
2181  // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
2182  // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2183  // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2184  static const short accumulative_offsets_from_0x4E00[] =
2185  {
2186  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,
2187  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,
2188  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,
2189  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,
2190  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,
2191  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,
2192  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,
2193  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,
2194  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,
2195  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,
2196  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,
2197  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,
2198  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,
2199  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,
2200  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,
2201  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,
2202  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,
2203  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,
2204  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,
2205  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,
2206  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,
2207  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,
2208  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,
2209  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,
2210  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,
2211  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,
2212  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,
2213  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,
2214  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,
2215  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,
2216  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,
2217  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,
2218  };
2219  static ImWchar base_ranges[] = // not zero-terminated
2220  {
2221  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2222  0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
2223  0x31F0, 0x31FF, // Katakana Phonetic Extensions
2224  0xFF00, 0xFFEF, // Half-width characters
2225  };
2226  static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
2227  if (!full_ranges[0])
2228  {
2229  memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2230  UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2231  }
2232  return &full_ranges[0];
2233 }
2234 
2235 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
2236 {
2237  static const ImWchar ranges[] =
2238  {
2239  0x0020, 0x00FF, // Basic Latin + Latin Supplement
2240  0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
2241  0x2DE0, 0x2DFF, // Cyrillic Extended-A
2242  0xA640, 0xA69F, // Cyrillic Extended-B
2243  0,
2244  };
2245  return &ranges[0];
2246 }
2247 
2248 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
2249 {
2250  static const ImWchar ranges[] =
2251  {
2252  0x0020, 0x00FF, // Basic Latin
2253  0x2010, 0x205E, // Punctuations
2254  0x0E00, 0x0E7F, // Thai
2255  0,
2256  };
2257  return &ranges[0];
2258 }
2259 
2260 //-----------------------------------------------------------------------------
2261 // [SECTION] ImFontGlyphRangesBuilder
2262 //-----------------------------------------------------------------------------
2263 
2264 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
2265 {
2266  while (text_end ? (text < text_end) : *text)
2267  {
2268  unsigned int c = 0;
2269  int c_len = ImTextCharFromUtf8(&c, text, text_end);
2270  text += c_len;
2271  if (c_len == 0)
2272  break;
2273  if (c < 0x10000)
2274  AddChar((ImWchar)c);
2275  }
2276 }
2277 
2278 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
2279 {
2280  for (; ranges[0]; ranges += 2)
2281  for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
2282  AddChar(c);
2283 }
2284 
2285 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
2286 {
2287  for (int n = 0; n < 0x10000; n++)
2288  if (GetBit(n))
2289  {
2290  out_ranges->push_back((ImWchar)n);
2291  while (n < 0x10000 && GetBit(n + 1))
2292  n++;
2293  out_ranges->push_back((ImWchar)n);
2294  }
2295  out_ranges->push_back(0);
2296 }
2297 
2298 //-----------------------------------------------------------------------------
2299 // [SECTION] ImFont
2300 //-----------------------------------------------------------------------------
2301 
2302 ImFont::ImFont()
2303 {
2304  Scale = 1.0f;
2305  FallbackChar = (ImWchar)'?';
2306  DisplayOffset = ImVec2(0.0f, 0.0f);
2307  ClearOutputData();
2308 }
2309 
2310 ImFont::~ImFont()
2311 {
2312  // Invalidate active font so that the user gets a clear crash instead of a dangling pointer.
2313  // If you want to delete fonts you need to do it between Render() and NewFrame().
2314  // FIXME-CLEANUP
2315  /*
2316  ImGuiContext& g = *GImGui;
2317  if (g.Font == this)
2318  g.Font = NULL;
2319  */
2320  ClearOutputData();
2321 }
2322 
2323 void ImFont::ClearOutputData()
2324 {
2325  FontSize = 0.0f;
2326  Glyphs.clear();
2327  IndexAdvanceX.clear();
2328  IndexLookup.clear();
2329  FallbackGlyph = NULL;
2330  FallbackAdvanceX = 0.0f;
2331  ConfigDataCount = 0;
2332  ConfigData = NULL;
2333  ContainerAtlas = NULL;
2334  Ascent = Descent = 0.0f;
2335  DirtyLookupTables = true;
2336  MetricsTotalSurface = 0;
2337 }
2338 
2339 void ImFont::BuildLookupTable()
2340 {
2341  int max_codepoint = 0;
2342  for (int i = 0; i != Glyphs.Size; i++)
2343  max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
2344 
2345  IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
2346  IndexAdvanceX.clear();
2347  IndexLookup.clear();
2348  DirtyLookupTables = false;
2349  GrowIndex(max_codepoint + 1);
2350  for (int i = 0; i < Glyphs.Size; i++)
2351  {
2352  int codepoint = (int)Glyphs[i].Codepoint;
2353  IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
2354  IndexLookup[codepoint] = (ImWchar)i;
2355  }
2356 
2357  // Create a glyph to handle TAB
2358  // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
2359  if (FindGlyph((ImWchar)' '))
2360  {
2361  if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times
2362  Glyphs.resize(Glyphs.Size + 1);
2363  ImFontGlyph& tab_glyph = Glyphs.back();
2364  tab_glyph = *FindGlyph((ImWchar)' ');
2365  tab_glyph.Codepoint = '\t';
2366  tab_glyph.AdvanceX *= 4;
2367  IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
2368  IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size-1);
2369  }
2370 
2371  FallbackGlyph = FindGlyphNoFallback(FallbackChar);
2372  FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
2373  for (int i = 0; i < max_codepoint + 1; i++)
2374  if (IndexAdvanceX[i] < 0.0f)
2375  IndexAdvanceX[i] = FallbackAdvanceX;
2376 }
2377 
2378 void ImFont::SetFallbackChar(ImWchar c)
2379 {
2380  FallbackChar = c;
2381  BuildLookupTable();
2382 }
2383 
2384 void ImFont::GrowIndex(int new_size)
2385 {
2386  IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
2387  if (new_size <= IndexLookup.Size)
2388  return;
2389  IndexAdvanceX.resize(new_size, -1.0f);
2390  IndexLookup.resize(new_size, (ImWchar)-1);
2391 }
2392 
2393 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
2394 // 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).
2395 void ImFont::AddGlyph(ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
2396 {
2397  Glyphs.resize(Glyphs.Size + 1);
2398  ImFontGlyph& glyph = Glyphs.back();
2399  glyph.Codepoint = (ImWchar)codepoint;
2400  glyph.X0 = x0;
2401  glyph.Y0 = y0;
2402  glyph.X1 = x1;
2403  glyph.Y1 = y1;
2404  glyph.U0 = u0;
2405  glyph.V0 = v0;
2406  glyph.U1 = u1;
2407  glyph.V1 = v1;
2408  glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x; // Bake spacing into AdvanceX
2409 
2410  if (ConfigData->PixelSnapH)
2411  glyph.AdvanceX = (float)(int)(glyph.AdvanceX + 0.5f);
2412 
2413  // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
2414  DirtyLookupTables = true;
2415  MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + 1.99f);
2416 }
2417 
2418 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
2419 {
2420  IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
2421  int index_size = IndexLookup.Size;
2422 
2423  if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
2424  return;
2425  if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
2426  return;
2427 
2428  GrowIndex(dst + 1);
2429  IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
2430  IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
2431 }
2432 
2433 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
2434 {
2435  if (c >= IndexLookup.Size)
2436  return FallbackGlyph;
2437  const ImWchar i = IndexLookup.Data[c];
2438  if (i == (ImWchar)-1)
2439  return FallbackGlyph;
2440  return &Glyphs.Data[i];
2441 }
2442 
2443 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
2444 {
2445  if (c >= IndexLookup.Size)
2446  return NULL;
2447  const ImWchar i = IndexLookup.Data[c];
2448  if (i == (ImWchar)-1)
2449  return NULL;
2450  return &Glyphs.Data[i];
2451 }
2452 
2453 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
2454 {
2455  // Simple word-wrapping for English, not full-featured. Please submit failing cases!
2456  // 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.)
2457 
2458  // For references, possible wrap point marked with ^
2459  // "aaa bbb, ccc,ddd. eee fff. ggg!"
2460  // ^ ^ ^ ^ ^__ ^ ^
2461 
2462  // List of hardcoded separators: .,;!?'"
2463 
2464  // Skip extra blanks after a line returns (that includes not counting them in width computation)
2465  // e.g. "Hello world" --> "Hello" "World"
2466 
2467  // Cut words that cannot possibly fit within one line.
2468  // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
2469 
2470  float line_width = 0.0f;
2471  float word_width = 0.0f;
2472  float blank_width = 0.0f;
2473  wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
2474 
2475  const char* word_end = text;
2476  const char* prev_word_end = NULL;
2477  bool inside_word = true;
2478 
2479  const char* s = text;
2480  while (s < text_end)
2481  {
2482  unsigned int c = (unsigned int)*s;
2483  const char* next_s;
2484  if (c < 0x80)
2485  next_s = s + 1;
2486  else
2487  next_s = s + ImTextCharFromUtf8(&c, s, text_end);
2488  if (c == 0)
2489  break;
2490 
2491  if (c < 32)
2492  {
2493  if (c == '\n')
2494  {
2495  line_width = word_width = blank_width = 0.0f;
2496  inside_word = true;
2497  s = next_s;
2498  continue;
2499  }
2500  if (c == '\r')
2501  {
2502  s = next_s;
2503  continue;
2504  }
2505  }
2506 
2507  const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
2508  if (ImCharIsBlankW(c))
2509  {
2510  if (inside_word)
2511  {
2512  line_width += blank_width;
2513  blank_width = 0.0f;
2514  word_end = s;
2515  }
2516  blank_width += char_width;
2517  inside_word = false;
2518  }
2519  else
2520  {
2521  word_width += char_width;
2522  if (inside_word)
2523  {
2524  word_end = next_s;
2525  }
2526  else
2527  {
2528  prev_word_end = word_end;
2529  line_width += word_width + blank_width;
2530  word_width = blank_width = 0.0f;
2531  }
2532 
2533  // Allow wrapping after punctuation.
2534  inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"');
2535  }
2536 
2537  // We ignore blank width at the end of the line (they can be skipped)
2538  if (line_width + word_width >= wrap_width)
2539  {
2540  // Words that cannot possibly fit within an entire line will be cut anywhere.
2541  if (word_width < wrap_width)
2542  s = prev_word_end ? prev_word_end : word_end;
2543  break;
2544  }
2545 
2546  s = next_s;
2547  }
2548 
2549  return s;
2550 }
2551 
2552 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
2553 {
2554  if (!text_end)
2555  text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
2556 
2557  const float line_height = size;
2558  const float scale = size / FontSize;
2559 
2560  ImVec2 text_size = ImVec2(0,0);
2561  float line_width = 0.0f;
2562 
2563  const bool word_wrap_enabled = (wrap_width > 0.0f);
2564  const char* word_wrap_eol = NULL;
2565 
2566  const char* s = text_begin;
2567  while (s < text_end)
2568  {
2569  if (word_wrap_enabled)
2570  {
2571  // 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.
2572  if (!word_wrap_eol)
2573  {
2574  word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
2575  if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
2576  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
2577  }
2578 
2579  if (s >= word_wrap_eol)
2580  {
2581  if (text_size.x < line_width)
2582  text_size.x = line_width;
2583  text_size.y += line_height;
2584  line_width = 0.0f;
2585  word_wrap_eol = NULL;
2586 
2587  // Wrapping skips upcoming blanks
2588  while (s < text_end)
2589  {
2590  const char c = *s;
2591  if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
2592  }
2593  continue;
2594  }
2595  }
2596 
2597  // Decode and advance source
2598  const char* prev_s = s;
2599  unsigned int c = (unsigned int)*s;
2600  if (c < 0x80)
2601  {
2602  s += 1;
2603  }
2604  else
2605  {
2606  s += ImTextCharFromUtf8(&c, s, text_end);
2607  if (c == 0) // Malformed UTF-8?
2608  break;
2609  }
2610 
2611  if (c < 32)
2612  {
2613  if (c == '\n')
2614  {
2615  text_size.x = ImMax(text_size.x, line_width);
2616  text_size.y += line_height;
2617  line_width = 0.0f;
2618  continue;
2619  }
2620  if (c == '\r')
2621  continue;
2622  }
2623 
2624  const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
2625  if (line_width + char_width >= max_width)
2626  {
2627  s = prev_s;
2628  break;
2629  }
2630 
2631  line_width += char_width;
2632  }
2633 
2634  if (text_size.x < line_width)
2635  text_size.x = line_width;
2636 
2637  if (line_width > 0 || text_size.y == 0.0f)
2638  text_size.y += line_height;
2639 
2640  if (remaining)
2641  *remaining = s;
2642 
2643  return text_size;
2644 }
2645 
2646 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
2647 {
2648  if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
2649  return;
2650  if (const ImFontGlyph* glyph = FindGlyph(c))
2651  {
2652  float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
2653  pos.x = (float)(int)pos.x + DisplayOffset.x;
2654  pos.y = (float)(int)pos.y + DisplayOffset.y;
2655  draw_list->PrimReserve(6, 4);
2656  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);
2657  }
2658 }
2659 
2660 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
2661 {
2662  if (!text_end)
2663  text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls.
2664 
2665  // Align to be pixel perfect
2666  pos.x = (float)(int)pos.x + DisplayOffset.x;
2667  pos.y = (float)(int)pos.y + DisplayOffset.y;
2668  float x = pos.x;
2669  float y = pos.y;
2670  if (y > clip_rect.w)
2671  return;
2672 
2673  const float scale = size / FontSize;
2674  const float line_height = FontSize * scale;
2675  const bool word_wrap_enabled = (wrap_width > 0.0f);
2676  const char* word_wrap_eol = NULL;
2677 
2678  // Fast-forward to first visible line
2679  const char* s = text_begin;
2680  if (y + line_height < clip_rect.y && !word_wrap_enabled)
2681  while (y + line_height < clip_rect.y && s < text_end)
2682  {
2683  s = (const char*)memchr(s, '\n', text_end - s);
2684  s = s ? s + 1 : text_end;
2685  y += line_height;
2686  }
2687 
2688  // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
2689  // 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)
2690  if (text_end - s > 10000 && !word_wrap_enabled)
2691  {
2692  const char* s_end = s;
2693  float y_end = y;
2694  while (y_end < clip_rect.w && s_end < text_end)
2695  {
2696  s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
2697  s_end = s_end ? s_end + 1 : text_end;
2698  y_end += line_height;
2699  }
2700  text_end = s_end;
2701  }
2702  if (s == text_end)
2703  return;
2704 
2705  // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
2706  const int vtx_count_max = (int)(text_end - s) * 4;
2707  const int idx_count_max = (int)(text_end - s) * 6;
2708  const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
2709  draw_list->PrimReserve(idx_count_max, vtx_count_max);
2710 
2711  ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
2712  ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
2713  unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
2714 
2715  while (s < text_end)
2716  {
2717  if (word_wrap_enabled)
2718  {
2719  // 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.
2720  if (!word_wrap_eol)
2721  {
2722  word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
2723  if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
2724  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
2725  }
2726 
2727  if (s >= word_wrap_eol)
2728  {
2729  x = pos.x;
2730  y += line_height;
2731  word_wrap_eol = NULL;
2732 
2733  // Wrapping skips upcoming blanks
2734  while (s < text_end)
2735  {
2736  const char c = *s;
2737  if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
2738  }
2739  continue;
2740  }
2741  }
2742 
2743  // Decode and advance source
2744  unsigned int c = (unsigned int)*s;
2745  if (c < 0x80)
2746  {
2747  s += 1;
2748  }
2749  else
2750  {
2751  s += ImTextCharFromUtf8(&c, s, text_end);
2752  if (c == 0) // Malformed UTF-8?
2753  break;
2754  }
2755 
2756  if (c < 32)
2757  {
2758  if (c == '\n')
2759  {
2760  x = pos.x;
2761  y += line_height;
2762  if (y > clip_rect.w)
2763  break; // break out of main loop
2764  continue;
2765  }
2766  if (c == '\r')
2767  continue;
2768  }
2769 
2770  float char_width = 0.0f;
2771  if (const ImFontGlyph* glyph = FindGlyph((ImWchar)c))
2772  {
2773  char_width = glyph->AdvanceX * scale;
2774 
2775  // Arbitrarily assume that both space and tabs are empty glyphs as an optimization
2776  if (c != ' ' && c != '\t')
2777  {
2778  // 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
2779  float x1 = x + glyph->X0 * scale;
2780  float x2 = x + glyph->X1 * scale;
2781  float y1 = y + glyph->Y0 * scale;
2782  float y2 = y + glyph->Y1 * scale;
2783  if (x1 <= clip_rect.z && x2 >= clip_rect.x)
2784  {
2785  // Render a character
2786  float u1 = glyph->U0;
2787  float v1 = glyph->V0;
2788  float u2 = glyph->U1;
2789  float v2 = glyph->V1;
2790 
2791  // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
2792  if (cpu_fine_clip)
2793  {
2794  if (x1 < clip_rect.x)
2795  {
2796  u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
2797  x1 = clip_rect.x;
2798  }
2799  if (y1 < clip_rect.y)
2800  {
2801  v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
2802  y1 = clip_rect.y;
2803  }
2804  if (x2 > clip_rect.z)
2805  {
2806  u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
2807  x2 = clip_rect.z;
2808  }
2809  if (y2 > clip_rect.w)
2810  {
2811  v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
2812  y2 = clip_rect.w;
2813  }
2814  if (y1 >= y2)
2815  {
2816  x += char_width;
2817  continue;
2818  }
2819  }
2820 
2821  // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
2822  {
2823  idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
2824  idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
2825  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;
2826  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;
2827  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;
2828  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;
2829  vtx_write += 4;
2830  vtx_current_idx += 4;
2831  idx_write += 6;
2832  }
2833  }
2834  }
2835  }
2836 
2837  x += char_width;
2838  }
2839 
2840  // Give back unused vertices
2841  draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data));
2842  draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data));
2843  draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
2844  draw_list->_VtxWritePtr = vtx_write;
2845  draw_list->_IdxWritePtr = idx_write;
2846  draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size;
2847 }
2848 
2849 //-----------------------------------------------------------------------------
2850 // [SECTION] Internal Render Helpers
2851 // (progressively moved from imgui.cpp to here when they are redesigned to stop accessing ImGui global state)
2852 //-----------------------------------------------------------------------------
2853 // - RenderMouseCursor()
2854 // - RenderArrowPointingAt()
2855 // - RenderRectFilledRangeH()
2856 // - RenderPixelEllipsis()
2857 //-----------------------------------------------------------------------------
2858 
2859 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor)
2860 {
2861  if (mouse_cursor == ImGuiMouseCursor_None)
2862  return;
2863  IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
2864 
2865  const ImU32 col_shadow = IM_COL32(0, 0, 0, 48);
2866  const ImU32 col_border = IM_COL32(0, 0, 0, 255); // Black
2867  const ImU32 col_fill = IM_COL32(255, 255, 255, 255); // White
2868 
2869  ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
2870  ImVec2 offset, size, uv[4];
2871  if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
2872  {
2873  pos -= offset;
2874  const ImTextureID tex_id = font_atlas->TexID;
2875  draw_list->PushTextureID(tex_id);
2876  draw_list->AddImage(tex_id, pos + ImVec2(1,0)*scale, pos + ImVec2(1,0)*scale + size*scale, uv[2], uv[3], col_shadow);
2877  draw_list->AddImage(tex_id, pos + ImVec2(2,0)*scale, pos + ImVec2(2,0)*scale + size*scale, uv[2], uv[3], col_shadow);
2878  draw_list->AddImage(tex_id, pos, pos + size*scale, uv[2], uv[3], col_border);
2879  draw_list->AddImage(tex_id, pos, pos + size*scale, uv[0], uv[1], col_fill);
2880  draw_list->PopTextureID();
2881  }
2882 }
2883 
2884 // 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.
2885 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
2886 {
2887  switch (direction)
2888  {
2889  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;
2890  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;
2891  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;
2892  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;
2893  case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
2894  }
2895 }
2896 
2897 static inline float ImAcos01(float x)
2898 {
2899  if (x <= 0.0f) return IM_PI * 0.5f;
2900  if (x >= 1.0f) return 0.0f;
2901  return ImAcos(x);
2902  //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
2903 }
2904 
2905 // FIXME: Cleanup and move code to ImDrawList.
2906 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
2907 {
2908  if (x_end_norm == x_start_norm)
2909  return;
2910  if (x_start_norm > x_end_norm)
2911  ImSwap(x_start_norm, x_end_norm);
2912 
2913  ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
2914  ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
2915  if (rounding == 0.0f)
2916  {
2917  draw_list->AddRectFilled(p0, p1, col, 0.0f);
2918  return;
2919  }
2920 
2921  rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
2922  const float inv_rounding = 1.0f / rounding;
2923  const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
2924  const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
2925  const float x0 = ImMax(p0.x, rect.Min.x + rounding);
2926  if (arc0_b == arc0_e)
2927  {
2928  draw_list->PathLineTo(ImVec2(x0, p1.y));
2929  draw_list->PathLineTo(ImVec2(x0, p0.y));
2930  }
2931  else if (arc0_b == 0.0f && arc0_e == IM_PI*0.5f)
2932  {
2933  draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
2934  draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
2935  }
2936  else
2937  {
2938  draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
2939  draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
2940  }
2941  if (p1.x > rect.Min.x + rounding)
2942  {
2943  const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
2944  const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
2945  const float x1 = ImMin(p1.x, rect.Max.x - rounding);
2946  if (arc1_b == arc1_e)
2947  {
2948  draw_list->PathLineTo(ImVec2(x1, p0.y));
2949  draw_list->PathLineTo(ImVec2(x1, p1.y));
2950  }
2951  else if (arc1_b == 0.0f && arc1_e == IM_PI*0.5f)
2952  {
2953  draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
2954  draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
2955  }
2956  else
2957  {
2958  draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
2959  draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
2960  }
2961  }
2962  draw_list->PathFillConvex(col);
2963 }
2964 
2965 // FIXME: Rendering an ellipsis "..." is a surprisingly tricky problem for us... we cannot rely on font glyph having it,
2966 // and regular dot are typically too wide. If we render a dot/shape ourselves it comes with the risk that it wouldn't match
2967 // the boldness or positioning of what the font uses...
2968 void ImGui::RenderPixelEllipsis(ImDrawList* draw_list, ImVec2 pos, int count, ImU32 col)
2969 {
2970  ImFont* font = draw_list->_Data->Font;
2971  pos.y += (float)(int)(font->DisplayOffset.y + font->Ascent + 0.5f - 1.0f);
2972  for (int dot_n = 0; dot_n < count; dot_n++)
2973  draw_list->AddRectFilled(ImVec2(pos.x + dot_n * 2.0f, pos.y), ImVec2(pos.x + dot_n * 2.0f + 1.0f, pos.y + 1.0f), col);
2974 }
2975 
2976 //-----------------------------------------------------------------------------
2977 // [SECTION] Decompression code
2978 //-----------------------------------------------------------------------------
2979 // Compressed with stb_compress() then converted to a C array and encoded as base85.
2980 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
2981 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
2982 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
2983 //-----------------------------------------------------------------------------
2984 
2985 static unsigned int stb_decompress_length(const unsigned char *input)
2986 {
2987  return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
2988 }
2989 
2990 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
2991 static const unsigned char *stb__barrier_in_b;
2992 static unsigned char *stb__dout;
2993 static void stb__match(const unsigned char *data, unsigned int length)
2994 {
2995  // INVERSE of memmove... write each byte before copying the next...
2996  IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
2997  if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
2998  if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
2999  while (length--) *stb__dout++ = *data++;
3000 }
3001 
3002 static void stb__lit(const unsigned char *data, unsigned int length)
3003 {
3004  IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3005  if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3006  if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
3007  memcpy(stb__dout, data, length);
3008  stb__dout += length;
3009 }
3010 
3011 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
3012 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
3013 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
3014 
3015 static const unsigned char *stb_decompress_token(const unsigned char *i)
3016 {
3017  if (*i >= 0x20) { // use fewer if's for cases that expand small
3018  if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
3019  else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
3020  else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
3021  } else { // more ifs for cases that expand large, since overhead is amortized
3022  if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
3023  else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
3024  else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
3025  else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
3026  else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
3027  else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
3028  }
3029  return i;
3030 }
3031 
3032 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
3033 {
3034  const unsigned long ADLER_MOD = 65521;
3035  unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
3036  unsigned long blocklen, i;
3037 
3038  blocklen = buflen % 5552;
3039  while (buflen) {
3040  for (i=0; i + 7 < blocklen; i += 8) {
3041  s1 += buffer[0], s2 += s1;
3042  s1 += buffer[1], s2 += s1;
3043  s1 += buffer[2], s2 += s1;
3044  s1 += buffer[3], s2 += s1;
3045  s1 += buffer[4], s2 += s1;
3046  s1 += buffer[5], s2 += s1;
3047  s1 += buffer[6], s2 += s1;
3048  s1 += buffer[7], s2 += s1;
3049 
3050  buffer += 8;
3051  }
3052 
3053  for (; i < blocklen; ++i)
3054  s1 += *buffer++, s2 += s1;
3055 
3056  s1 %= ADLER_MOD, s2 %= ADLER_MOD;
3057  buflen -= blocklen;
3058  blocklen = 5552;
3059  }
3060  return (unsigned int)(s2 << 16) + (unsigned int)s1;
3061 }
3062 
3063 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
3064 {
3065  unsigned int olen;
3066  if (stb__in4(0) != 0x57bC0000) return 0;
3067  if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
3068  olen = stb_decompress_length(i);
3069  stb__barrier_in_b = i;
3070  stb__barrier_out_e = output + olen;
3071  stb__barrier_out_b = output;
3072  i += 16;
3073 
3074  stb__dout = output;
3075  for (;;) {
3076  const unsigned char *old_i = i;
3077  i = stb_decompress_token(i);
3078  if (i == old_i) {
3079  if (*i == 0x05 && i[1] == 0xfa) {
3080  IM_ASSERT(stb__dout == output + olen);
3081  if (stb__dout != output + olen) return 0;
3082  if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
3083  return 0;
3084  return olen;
3085  } else {
3086  IM_ASSERT(0); /* NOTREACHED */
3087  return 0;
3088  }
3089  }
3090  IM_ASSERT(stb__dout <= output + olen);
3091  if (stb__dout > output + olen)
3092  return 0;
3093  }
3094 }
3095 
3096 //-----------------------------------------------------------------------------
3097 // [SECTION] Default font data (ProggyClean.ttf)
3098 //-----------------------------------------------------------------------------
3099 // ProggyClean.ttf
3100 // Copyright (c) 2004, 2005 Tristan Grimmer
3101 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
3102 // Download and more information at http://upperbounds.net
3103 //-----------------------------------------------------------------------------
3104 // File: 'ProggyClean.ttf' (41208 bytes)
3105 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
3106 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3107 //-----------------------------------------------------------------------------
3108 static const char proggy_clean_ttf_compressed_data_base85[11980+1] =
3109  "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
3110  "2*>]b(MC;$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#"
3111  "`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"
3112  "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"
3113  "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+`&#0j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
3114  "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cX&#2m#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
3115  "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"
3116  "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."
3117  "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"
3118  "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(,)"
3119  "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#"
3120  "'/###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"
3121  "_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"
3122  "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/"
3123  "/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"
3124  "%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&#"
3125  "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)("
3126  "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"
3127  "o;#2:;%d&#x9v68C5g?ntX0X)pT`;%pB3q7mgGN)3%(P8nTd5L7GeA-GL@+%J3u2:(Yf>et`e;)f#Km8&+DC$I46>#Kr]]u-[=99tts1.qb#q72g1WJO81q+eN'03'eM>&1XxY-caEnO"
3128  "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^-"
3129  "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-"
3130  "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"
3131  "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%"
3132  "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]"
3133  "%(?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"
3134  "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:"
3135  "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("
3136  "$/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<"
3137  "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'?"
3138  "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/;"
3139  ")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"
3140  "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("
3141  "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"
3142  "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTG&#1T5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
3143  "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<-"
3144  "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"
3145  "sZ88+dKQ)W6>J%CL<KE>`.d*(B`-n8D9oK<Up]c$X$(,)M8Zt7/[rdkqTgl-0cuGMv'?>-XV1q['-5k'cAZ69e;D_?$ZPP&s^+7])$*$#@QYi9,5P&#9r+$%CE=68>K8r0=dSC%%(@p7"
3146  ".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@@"
3147  "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
3148  "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
3149  "@-W$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&#"
3150  "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#"
3151  "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"
3152  "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoF&#4DoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
3153  "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
3154  "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
3155  ":k$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+"
3156  "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*"
3157  "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
3158  ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
3159  "7aQC[K8d-(v6GI$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"
3160  "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"
3161  "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
3162  ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
3163  "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
3164  "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
3165  "^V'9;jY@;)br#q^YQpx:X#Te$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:"
3166  "+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$b*aTX=-8QxN)k11IM1c^j%"
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3190  "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
3191  "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
3192  "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
3193  "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
3194  "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
3195 
3196 static const char* GetDefaultCompressedFontDataTTFBase85()
3197 {
3198  return proggy_clean_ttf_compressed_data_base85;
3199 }
d
d
stb__in4
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t
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