1 // dear imgui, v1.79 WIP
2 // (drawing and font code)
3
4 /*
5
6 Index of this file:
7
8 // [SECTION] STB libraries implementation
9 // [SECTION] Style functions
10 // [SECTION] ImDrawList
11 // [SECTION] ImDrawListSplitter
12 // [SECTION] ImDrawData
13 // [SECTION] Helpers ShadeVertsXXX functions
14 // [SECTION] ImFontConfig
15 // [SECTION] ImFontAtlas
16 // [SECTION] ImFontAtlas glyph ranges helpers
17 // [SECTION] ImFontGlyphRangesBuilder
18 // [SECTION] ImFont
19 // [SECTION] ImGui Internal Render Helpers
20 // [SECTION] Decompression code
21 // [SECTION] Default font data (ProggyClean.ttf)
22
23 */
24
25 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
26 #define _CRT_SECURE_NO_WARNINGS
27 #endif
28
29 #include "imgui.h"
30 #ifndef IMGUI_DISABLE
31
32 #ifndef IMGUI_DEFINE_MATH_OPERATORS
33 #define IMGUI_DEFINE_MATH_OPERATORS
34 #endif
35 #include "imgui_internal.h"
36
37 #include <stdio.h> // vsnprintf, sscanf, printf
38 #if !defined(alloca)
39 #if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
40 #include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
41 #elif defined(_WIN32)
42 #include <malloc.h> // alloca
43 #if !defined(alloca)
44 #define alloca _alloca // for clang with MS Codegen
45 #endif
46 #else
47 #include <stdlib.h> // alloca
48 #endif
49 #endif
50
51 // Visual Studio warnings
52 #ifdef _MSC_VER
53 #pragma warning (disable: 4127) // condition expression is constant
54 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
55 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
56 #endif
57
58 // Clang/GCC warnings with -Weverything
59 #if defined(__clang__)
60 #if __has_warning("-Wunknown-warning-option")
61 #pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
62 #endif
63 #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
64 #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
65 #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
66 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
67 #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
68 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
69 #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
70 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
71 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
72 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
73 #elif defined(__GNUC__)
74 #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
75 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
76 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
77 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
78 #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
79 #pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
80 #endif
81
82 //-------------------------------------------------------------------------
83 // [SECTION] STB libraries implementation
84 //-------------------------------------------------------------------------
85
86 // Compile time options:
87 //#define IMGUI_STB_NAMESPACE ImStb
88 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
89 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
90 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
91 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
92
93 #ifdef IMGUI_STB_NAMESPACE
94 namespace IMGUI_STB_NAMESPACE
95 {
96 #endif
97
98 #ifdef _MSC_VER
99 #pragma warning (push)
100 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
101 #endif
102
103 #if defined(__clang__)
104 #pragma clang diagnostic push
105 #pragma clang diagnostic ignored "-Wunused-function"
106 #pragma clang diagnostic ignored "-Wmissing-prototypes"
107 #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
108 #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
109 #endif
110
111 #if defined(__GNUC__)
112 #pragma GCC diagnostic push
113 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
114 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
115 #endif
116
117 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
118 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
119 #define STBRP_STATIC
120 #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
121 #define STBRP_SORT ImQsort
122 #define STB_RECT_PACK_IMPLEMENTATION
123 #endif
124 #ifdef IMGUI_STB_RECT_PACK_FILENAME
125 #include IMGUI_STB_RECT_PACK_FILENAME
126 #else
127 #include "imstb_rectpack.h"
128 #endif
129 #endif
130
131 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
132 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
133 #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
134 #define STBTT_free(x,u) ((void)(u), IM_FREE(x))
135 #define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
136 #define STBTT_fmod(x,y) ImFmod(x,y)
137 #define STBTT_sqrt(x) ImSqrt(x)
138 #define STBTT_pow(x,y) ImPow(x,y)
139 #define STBTT_fabs(x) ImFabs(x)
140 #define STBTT_ifloor(x) ((int)ImFloorStd(x))
141 #define STBTT_iceil(x) ((int)ImCeil(x))
142 #define STBTT_STATIC
143 #define STB_TRUETYPE_IMPLEMENTATION
144 #else
145 #define STBTT_DEF extern
146 #endif
147 #ifdef IMGUI_STB_TRUETYPE_FILENAME
148 #include IMGUI_STB_TRUETYPE_FILENAME
149 #else
150 #include "imstb_truetype.h"
151 #endif
152 #endif
153
154 #if defined(__GNUC__)
155 #pragma GCC diagnostic pop
156 #endif
157
158 #if defined(__clang__)
159 #pragma clang diagnostic pop
160 #endif
161
162 #if defined(_MSC_VER)
163 #pragma warning (pop)
164 #endif
165
166 #ifdef IMGUI_STB_NAMESPACE
167 } // namespace ImStb
168 using namespace IMGUI_STB_NAMESPACE;
169 #endif
170
171 //-----------------------------------------------------------------------------
172 // [SECTION] Style functions
173 //-----------------------------------------------------------------------------
174
StyleColorsDark(ImGuiStyle * dst)175 void ImGui::StyleColorsDark(ImGuiStyle* dst)
176 {
177 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
178 ImVec4* colors = style->Colors;
179
180 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
181 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
182 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
183 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
184 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
185 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
186 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
187 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
188 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
189 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
190 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
191 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
192 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
193 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
194 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
195 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
196 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
197 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
198 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
199 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
200 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
201 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
202 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
203 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
204 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
205 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
206 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
207 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
208 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
209 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
210 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
211 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
212 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
213 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
214 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
215 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
216 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
217 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
218 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_HeaderActive] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
219 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
220 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
221 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
222 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
223 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
224 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
225 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
226 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
227 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
228 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
229 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
230 }
231
StyleColorsClassic(ImGuiStyle * dst)232 void ImGui::StyleColorsClassic(ImGuiStyle* dst)
233 {
234 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
235 ImVec4* colors = style->Colors;
236
237 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
238 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
239 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
240 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
241 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
242 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
243 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
244 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
245 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
246 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
247 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
248 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
249 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
250 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
251 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
252 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
253 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
254 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
255 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
256 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
257 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
258 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
259 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
260 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
261 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
262 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
263 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
264 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
265 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
266 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
267 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
268 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
269 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
270 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
271 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
272 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
273 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
274 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
275 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
276 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
277 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
278 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
279 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
280 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
281 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
282 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
283 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
284 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
285 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
286 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
287 }
288
289 // Those light colors are better suited with a thicker font than the default one + FrameBorder
StyleColorsLight(ImGuiStyle * dst)290 void ImGui::StyleColorsLight(ImGuiStyle* dst)
291 {
292 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
293 ImVec4* colors = style->Colors;
294
295 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
296 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
297 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
298 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
299 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
300 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
301 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
302 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
303 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
304 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
305 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
306 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
307 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
308 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
309 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
310 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
311 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
312 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
313 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
314 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
315 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
316 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
317 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
318 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
319 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
320 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
321 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
322 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
323 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
324 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
325 colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
326 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
327 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
328 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
329 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
330 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
331 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
332 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
333 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f);
334 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
335 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
336 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
337 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
338 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
339 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
340 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
341 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
342 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
343 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
344 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
345 }
346
347 //-----------------------------------------------------------------------------
348 // ImDrawList
349 //-----------------------------------------------------------------------------
350
ImDrawListSharedData()351 ImDrawListSharedData::ImDrawListSharedData()
352 {
353 Font = NULL;
354 FontSize = 0.0f;
355 CurveTessellationTol = 0.0f;
356 CircleSegmentMaxError = 0.0f;
357 ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
358 InitialFlags = ImDrawListFlags_None;
359
360 // Lookup tables
361 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
362 {
363 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
364 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
365 }
366 memset(CircleSegmentCounts, 0, sizeof(CircleSegmentCounts)); // This will be set by SetCircleSegmentMaxError()
367 TexUvLines = NULL;
368 }
369
SetCircleSegmentMaxError(float max_error)370 void ImDrawListSharedData::SetCircleSegmentMaxError(float max_error)
371 {
372 if (CircleSegmentMaxError == max_error)
373 return;
374 CircleSegmentMaxError = max_error;
375 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
376 {
377 const float radius = i + 1.0f;
378 const int segment_count = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError);
379 CircleSegmentCounts[i] = (ImU8)ImMin(segment_count, 255);
380 }
381 }
382
383 // Initialize before use in a new frame. We always have a command ready in the buffer.
_ResetForNewFrame()384 void ImDrawList::_ResetForNewFrame()
385 {
386 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
387 // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
388 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
389 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
390 IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
391
392 CmdBuffer.resize(0);
393 IdxBuffer.resize(0);
394 VtxBuffer.resize(0);
395 Flags = _Data->InitialFlags;
396 memset(&_CmdHeader, 0, sizeof(_CmdHeader));
397 _VtxCurrentIdx = 0;
398 _VtxWritePtr = NULL;
399 _IdxWritePtr = NULL;
400 _ClipRectStack.resize(0);
401 _TextureIdStack.resize(0);
402 _Path.resize(0);
403 _Splitter.Clear();
404 CmdBuffer.push_back(ImDrawCmd());
405 }
406
_ClearFreeMemory()407 void ImDrawList::_ClearFreeMemory()
408 {
409 CmdBuffer.clear();
410 IdxBuffer.clear();
411 VtxBuffer.clear();
412 Flags = ImDrawListFlags_None;
413 _VtxCurrentIdx = 0;
414 _VtxWritePtr = NULL;
415 _IdxWritePtr = NULL;
416 _ClipRectStack.clear();
417 _TextureIdStack.clear();
418 _Path.clear();
419 _Splitter.ClearFreeMemory();
420 }
421
CloneOutput() const422 ImDrawList* ImDrawList::CloneOutput() const
423 {
424 ImDrawList* dst = IM_NEW(ImDrawList(_Data));
425 dst->CmdBuffer = CmdBuffer;
426 dst->IdxBuffer = IdxBuffer;
427 dst->VtxBuffer = VtxBuffer;
428 dst->Flags = Flags;
429 return dst;
430 }
431
AddDrawCmd()432 void ImDrawList::AddDrawCmd()
433 {
434 ImDrawCmd draw_cmd;
435 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
436 draw_cmd.TextureId = _CmdHeader.TextureId;
437 draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
438 draw_cmd.IdxOffset = IdxBuffer.Size;
439
440 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
441 CmdBuffer.push_back(draw_cmd);
442 }
443
444 // Pop trailing draw command (used before merging or presenting to user)
445 // Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
_PopUnusedDrawCmd()446 void ImDrawList::_PopUnusedDrawCmd()
447 {
448 if (CmdBuffer.Size == 0)
449 return;
450 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
451 if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
452 CmdBuffer.pop_back();
453 }
454
AddCallback(ImDrawCallback callback,void * callback_data)455 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
456 {
457 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
458 IM_ASSERT(curr_cmd->UserCallback == NULL);
459 if (curr_cmd->ElemCount != 0)
460 {
461 AddDrawCmd();
462 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
463 }
464 curr_cmd->UserCallback = callback;
465 curr_cmd->UserCallbackData = callback_data;
466
467 AddDrawCmd(); // Force a new command after us (see comment below)
468 }
469
470 // Compare ClipRect, TextureId and VtxOffset with a single memcmp()
471 #define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
472 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
473 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
474
475 // 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.
476 // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
_OnChangedClipRect()477 void ImDrawList::_OnChangedClipRect()
478 {
479 // If current command is used with different settings we need to add a new command
480 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
481 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
482 {
483 AddDrawCmd();
484 return;
485 }
486 IM_ASSERT(curr_cmd->UserCallback == NULL);
487
488 // Try to merge with previous command if it matches, else use current command
489 ImDrawCmd* prev_cmd = curr_cmd - 1;
490 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
491 {
492 CmdBuffer.pop_back();
493 return;
494 }
495
496 curr_cmd->ClipRect = _CmdHeader.ClipRect;
497 }
498
_OnChangedTextureID()499 void ImDrawList::_OnChangedTextureID()
500 {
501 // If current command is used with different settings we need to add a new command
502 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
503 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
504 {
505 AddDrawCmd();
506 return;
507 }
508 IM_ASSERT(curr_cmd->UserCallback == NULL);
509
510 // Try to merge with previous command if it matches, else use current command
511 ImDrawCmd* prev_cmd = curr_cmd - 1;
512 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
513 {
514 CmdBuffer.pop_back();
515 return;
516 }
517
518 curr_cmd->TextureId = _CmdHeader.TextureId;
519 }
520
_OnChangedVtxOffset()521 void ImDrawList::_OnChangedVtxOffset()
522 {
523 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
524 _VtxCurrentIdx = 0;
525 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
526 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
527 if (curr_cmd->ElemCount != 0)
528 {
529 AddDrawCmd();
530 return;
531 }
532 IM_ASSERT(curr_cmd->UserCallback == NULL);
533 curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
534 }
535
536 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
PushClipRect(ImVec2 cr_min,ImVec2 cr_max,bool intersect_with_current_clip_rect)537 void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
538 {
539 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
540 if (intersect_with_current_clip_rect)
541 {
542 ImVec4 current = _CmdHeader.ClipRect;
543 if (cr.x < current.x) cr.x = current.x;
544 if (cr.y < current.y) cr.y = current.y;
545 if (cr.z > current.z) cr.z = current.z;
546 if (cr.w > current.w) cr.w = current.w;
547 }
548 cr.z = ImMax(cr.x, cr.z);
549 cr.w = ImMax(cr.y, cr.w);
550
551 _ClipRectStack.push_back(cr);
552 _CmdHeader.ClipRect = cr;
553 _OnChangedClipRect();
554 }
555
PushClipRectFullScreen()556 void ImDrawList::PushClipRectFullScreen()
557 {
558 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
559 }
560
PopClipRect()561 void ImDrawList::PopClipRect()
562 {
563 _ClipRectStack.pop_back();
564 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
565 _OnChangedClipRect();
566 }
567
PushTextureID(ImTextureID texture_id)568 void ImDrawList::PushTextureID(ImTextureID texture_id)
569 {
570 _TextureIdStack.push_back(texture_id);
571 _CmdHeader.TextureId = texture_id;
572 _OnChangedTextureID();
573 }
574
PopTextureID()575 void ImDrawList::PopTextureID()
576 {
577 _TextureIdStack.pop_back();
578 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
579 _OnChangedTextureID();
580 }
581
582 // Reserve space for a number of vertices and indices.
583 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
584 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
PrimReserve(int idx_count,int vtx_count)585 void ImDrawList::PrimReserve(int idx_count, int vtx_count)
586 {
587 // Large mesh support (when enabled)
588 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
589 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
590 {
591 // FIXME: In theory we should be testing that vtx_count <64k here.
592 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
593 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
594 _CmdHeader.VtxOffset = VtxBuffer.Size;
595 _OnChangedVtxOffset();
596 }
597
598 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
599 draw_cmd->ElemCount += idx_count;
600
601 int vtx_buffer_old_size = VtxBuffer.Size;
602 VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
603 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
604
605 int idx_buffer_old_size = IdxBuffer.Size;
606 IdxBuffer.resize(idx_buffer_old_size + idx_count);
607 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
608 }
609
610 // Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
PrimUnreserve(int idx_count,int vtx_count)611 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
612 {
613 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
614
615 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
616 draw_cmd->ElemCount -= idx_count;
617 VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
618 IdxBuffer.shrink(IdxBuffer.Size - idx_count);
619 }
620
621 // Fully unrolled with inline call to keep our debug builds decently fast.
PrimRect(const ImVec2 & a,const ImVec2 & c,ImU32 col)622 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
623 {
624 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
625 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
626 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
627 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
628 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
629 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
630 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
631 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
632 _VtxWritePtr += 4;
633 _VtxCurrentIdx += 4;
634 _IdxWritePtr += 6;
635 }
636
PrimRectUV(const ImVec2 & a,const ImVec2 & c,const ImVec2 & uv_a,const ImVec2 & uv_c,ImU32 col)637 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
638 {
639 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);
640 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
641 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
642 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
643 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
644 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
645 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
646 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
647 _VtxWritePtr += 4;
648 _VtxCurrentIdx += 4;
649 _IdxWritePtr += 6;
650 }
651
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)652 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)
653 {
654 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
655 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
656 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
657 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
658 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
659 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
660 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
661 _VtxWritePtr += 4;
662 _VtxCurrentIdx += 4;
663 _IdxWritePtr += 6;
664 }
665
666 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
667 // Those macros expects l-values.
668 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
669 #define IM_FIXNORMAL2F(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; } while (0)
670
671 // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
672 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
AddPolyline(const ImVec2 * points,const int points_count,ImU32 col,bool closed,float thickness)673 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
674 {
675 if (points_count < 2)
676 return;
677
678 const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
679 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
680 const bool thick_line = (thickness > 1.0f);
681
682 if (Flags & ImDrawListFlags_AntiAliasedLines)
683 {
684 // Anti-aliased stroke
685 const float AA_SIZE = 1.0f;
686 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
687
688 // Thicknesses <1.0 should behave like thickness 1.0
689 thickness = ImMax(thickness, 1.0f);
690 const int integer_thickness = (int)thickness;
691 const float fractional_thickness = thickness - integer_thickness;
692
693 // Do we want to draw this line using a texture?
694 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
695 // - If AA_SIZE is not 1.0f we cannot use the texture path.
696 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f);
697
698 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
699 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
700
701 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
702 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
703 PrimReserve(idx_count, vtx_count);
704
705 // Temporary buffer
706 // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
707 ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
708 ImVec2* temp_points = temp_normals + points_count;
709
710 // Calculate normals (tangents) for each line segment
711 for (int i1 = 0; i1 < count; i1++)
712 {
713 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
714 float dx = points[i2].x - points[i1].x;
715 float dy = points[i2].y - points[i1].y;
716 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
717 temp_normals[i1].x = dy;
718 temp_normals[i1].y = -dx;
719 }
720 if (!closed)
721 temp_normals[points_count - 1] = temp_normals[points_count - 2];
722
723 // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
724 if (use_texture || !thick_line)
725 {
726 // [PATH 1] Texture-based lines (thick or non-thick)
727 // [PATH 2] Non texture-based lines (non-thick)
728
729 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
730 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
731 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
732 // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
733 // allow scaling geometry while preserving one-screen-pixel AA fringe).
734 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
735
736 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
737 if (!closed)
738 {
739 temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
740 temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
741 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
742 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
743 }
744
745 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
746 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
747 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
748 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
749 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
750 {
751 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
752 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
753
754 // Average normals
755 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
756 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
757 IM_FIXNORMAL2F(dm_x, dm_y);
758 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
759 dm_y *= half_draw_size;
760
761 // Add temporary vertexes for the outer edges
762 ImVec2* out_vtx = &temp_points[i2 * 2];
763 out_vtx[0].x = points[i2].x + dm_x;
764 out_vtx[0].y = points[i2].y + dm_y;
765 out_vtx[1].x = points[i2].x - dm_x;
766 out_vtx[1].y = points[i2].y - dm_y;
767
768 if (use_texture)
769 {
770 // Add indices for two triangles
771 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
772 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
773 _IdxWritePtr += 6;
774 }
775 else
776 {
777 // Add indexes for four triangles
778 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
779 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
780 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
781 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
782 _IdxWritePtr += 12;
783 }
784
785 idx1 = idx2;
786 }
787
788 // Add vertexes for each point on the line
789 if (use_texture)
790 {
791 // If we're using textures we only need to emit the left/right edge vertices
792 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
793 if (fractional_thickness != 0.0f)
794 {
795 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
796 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
797 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
798 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
799 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
800 }
801 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
802 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
803 for (int i = 0; i < points_count; i++)
804 {
805 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
806 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
807 _VtxWritePtr += 2;
808 }
809 }
810 else
811 {
812 // If we're not using a texture, we need the center vertex as well
813 for (int i = 0; i < points_count; i++)
814 {
815 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
816 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
817 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
818 _VtxWritePtr += 3;
819 }
820 }
821 }
822 else
823 {
824 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
825 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
826
827 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
828 if (!closed)
829 {
830 const int points_last = points_count - 1;
831 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
832 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
833 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
834 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
835 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
836 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
837 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
838 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
839 }
840
841 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
842 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
843 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
844 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
845 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
846 {
847 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
848 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
849
850 // Average normals
851 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
852 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
853 IM_FIXNORMAL2F(dm_x, dm_y);
854 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
855 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
856 float dm_in_x = dm_x * half_inner_thickness;
857 float dm_in_y = dm_y * half_inner_thickness;
858
859 // Add temporary vertices
860 ImVec2* out_vtx = &temp_points[i2 * 4];
861 out_vtx[0].x = points[i2].x + dm_out_x;
862 out_vtx[0].y = points[i2].y + dm_out_y;
863 out_vtx[1].x = points[i2].x + dm_in_x;
864 out_vtx[1].y = points[i2].y + dm_in_y;
865 out_vtx[2].x = points[i2].x - dm_in_x;
866 out_vtx[2].y = points[i2].y - dm_in_y;
867 out_vtx[3].x = points[i2].x - dm_out_x;
868 out_vtx[3].y = points[i2].y - dm_out_y;
869
870 // Add indexes
871 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
872 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
873 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
874 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
875 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
876 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
877 _IdxWritePtr += 18;
878
879 idx1 = idx2;
880 }
881
882 // Add vertices
883 for (int i = 0; i < points_count; i++)
884 {
885 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
886 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
887 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
888 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
889 _VtxWritePtr += 4;
890 }
891 }
892 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
893 }
894 else
895 {
896 // [PATH 4] Non texture-based, Non anti-aliased lines
897 const int idx_count = count * 6;
898 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
899 PrimReserve(idx_count, vtx_count);
900
901 for (int i1 = 0; i1 < count; i1++)
902 {
903 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
904 const ImVec2& p1 = points[i1];
905 const ImVec2& p2 = points[i2];
906
907 float dx = p2.x - p1.x;
908 float dy = p2.y - p1.y;
909 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
910 dx *= (thickness * 0.5f);
911 dy *= (thickness * 0.5f);
912
913 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
914 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
915 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
916 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
917 _VtxWritePtr += 4;
918
919 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
920 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
921 _IdxWritePtr += 6;
922 _VtxCurrentIdx += 4;
923 }
924 }
925 }
926
927 // We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
AddConvexPolyFilled(const ImVec2 * points,const int points_count,ImU32 col)928 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
929 {
930 if (points_count < 3)
931 return;
932
933 const ImVec2 uv = _Data->TexUvWhitePixel;
934
935 if (Flags & ImDrawListFlags_AntiAliasedFill)
936 {
937 // Anti-aliased Fill
938 const float AA_SIZE = 1.0f;
939 const ImU32 col_trans = col & ~IM_COL32_A_MASK;
940 const int idx_count = (points_count - 2)*3 + points_count * 6;
941 const int vtx_count = (points_count * 2);
942 PrimReserve(idx_count, vtx_count);
943
944 // Add indexes for fill
945 unsigned int vtx_inner_idx = _VtxCurrentIdx;
946 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
947 for (int i = 2; i < points_count; i++)
948 {
949 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
950 _IdxWritePtr += 3;
951 }
952
953 // Compute normals
954 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
955 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
956 {
957 const ImVec2& p0 = points[i0];
958 const ImVec2& p1 = points[i1];
959 float dx = p1.x - p0.x;
960 float dy = p1.y - p0.y;
961 IM_NORMALIZE2F_OVER_ZERO(dx, dy);
962 temp_normals[i0].x = dy;
963 temp_normals[i0].y = -dx;
964 }
965
966 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
967 {
968 // Average normals
969 const ImVec2& n0 = temp_normals[i0];
970 const ImVec2& n1 = temp_normals[i1];
971 float dm_x = (n0.x + n1.x) * 0.5f;
972 float dm_y = (n0.y + n1.y) * 0.5f;
973 IM_FIXNORMAL2F(dm_x, dm_y);
974 dm_x *= AA_SIZE * 0.5f;
975 dm_y *= AA_SIZE * 0.5f;
976
977 // Add vertices
978 _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
979 _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
980 _VtxWritePtr += 2;
981
982 // Add indexes for fringes
983 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
984 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
985 _IdxWritePtr += 6;
986 }
987 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
988 }
989 else
990 {
991 // Non Anti-aliased Fill
992 const int idx_count = (points_count - 2)*3;
993 const int vtx_count = points_count;
994 PrimReserve(idx_count, vtx_count);
995 for (int i = 0; i < vtx_count; i++)
996 {
997 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
998 _VtxWritePtr++;
999 }
1000 for (int i = 2; i < points_count; i++)
1001 {
1002 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
1003 _IdxWritePtr += 3;
1004 }
1005 _VtxCurrentIdx += (ImDrawIdx)vtx_count;
1006 }
1007 }
1008
PathArcToFast(const ImVec2 & center,float radius,int a_min_of_12,int a_max_of_12)1009 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
1010 {
1011 if (radius == 0.0f || a_min_of_12 > a_max_of_12)
1012 {
1013 _Path.push_back(center);
1014 return;
1015 }
1016
1017 // For legacy reason the PathArcToFast() always takes angles where 2*PI is represented by 12,
1018 // but it is possible to set IM_DRAWLIST_ARCFAST_TESSELATION_MULTIPLIER to a higher value. This should compile to a no-op otherwise.
1019 #if IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER != 1
1020 a_min_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1021 a_max_of_12 *= IM_DRAWLIST_ARCFAST_TESSELLATION_MULTIPLIER;
1022 #endif
1023
1024 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
1025 for (int a = a_min_of_12; a <= a_max_of_12; a++)
1026 {
1027 const ImVec2& c = _Data->ArcFastVtx[a % IM_ARRAYSIZE(_Data->ArcFastVtx)];
1028 _Path.push_back(ImVec2(center.x + c.x * radius, center.y + c.y * radius));
1029 }
1030 }
1031
PathArcTo(const ImVec2 & center,float radius,float a_min,float a_max,int num_segments)1032 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
1033 {
1034 if (radius == 0.0f)
1035 {
1036 _Path.push_back(center);
1037 return;
1038 }
1039
1040 // Note that we are adding a point at both a_min and a_max.
1041 // If you are trying to draw a full closed circle you don't want the overlapping points!
1042 _Path.reserve(_Path.Size + (num_segments + 1));
1043 for (int i = 0; i <= num_segments; i++)
1044 {
1045 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
1046 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
1047 }
1048 }
1049
ImBezierCalc(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,float t)1050 ImVec2 ImBezierCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
1051 {
1052 float u = 1.0f - t;
1053 float w1 = u*u*u;
1054 float w2 = 3*u*u*t;
1055 float w3 = 3*u*t*t;
1056 float w4 = t*t*t;
1057 return ImVec2(w1*p1.x + w2*p2.x + w3*p3.x + w4*p4.x, w1*p1.y + w2*p2.y + w3*p3.y + w4*p4.y);
1058 }
1059
1060 // Closely mimics BezierClosestPointCasteljauStep() in imgui.cpp
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)1061 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)
1062 {
1063 float dx = x4 - x1;
1064 float dy = y4 - y1;
1065 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
1066 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
1067 d2 = (d2 >= 0) ? d2 : -d2;
1068 d3 = (d3 >= 0) ? d3 : -d3;
1069 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
1070 {
1071 path->push_back(ImVec2(x4, y4));
1072 }
1073 else if (level < 10)
1074 {
1075 float x12 = (x1 + x2)*0.5f, y12 = (y1 + y2)*0.5f;
1076 float x23 = (x2 + x3)*0.5f, y23 = (y2 + y3)*0.5f;
1077 float x34 = (x3 + x4)*0.5f, y34 = (y3 + y4)*0.5f;
1078 float x123 = (x12 + x23)*0.5f, y123 = (y12 + y23)*0.5f;
1079 float x234 = (x23 + x34)*0.5f, y234 = (y23 + y34)*0.5f;
1080 float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
1081 PathBezierToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
1082 PathBezierToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
1083 }
1084 }
1085
PathBezierCurveTo(const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,int num_segments)1086 void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
1087 {
1088 ImVec2 p1 = _Path.back();
1089 if (num_segments == 0)
1090 {
1091 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
1092 }
1093 else
1094 {
1095 float t_step = 1.0f / (float)num_segments;
1096 for (int i_step = 1; i_step <= num_segments; i_step++)
1097 _Path.push_back(ImBezierCalc(p1, p2, p3, p4, t_step * i_step));
1098 }
1099 }
1100
PathRect(const ImVec2 & a,const ImVec2 & b,float rounding,ImDrawCornerFlags rounding_corners)1101 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawCornerFlags rounding_corners)
1102 {
1103 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);
1104 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);
1105
1106 if (rounding <= 0.0f || rounding_corners == 0)
1107 {
1108 PathLineTo(a);
1109 PathLineTo(ImVec2(b.x, a.y));
1110 PathLineTo(b);
1111 PathLineTo(ImVec2(a.x, b.y));
1112 }
1113 else
1114 {
1115 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
1116 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
1117 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
1118 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
1119 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
1120 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
1121 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
1122 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
1123 }
1124 }
1125
AddLine(const ImVec2 & p1,const ImVec2 & p2,ImU32 col,float thickness)1126 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
1127 {
1128 if ((col & IM_COL32_A_MASK) == 0)
1129 return;
1130 PathLineTo(p1 + ImVec2(0.5f, 0.5f));
1131 PathLineTo(p2 + ImVec2(0.5f, 0.5f));
1132 PathStroke(col, false, thickness);
1133 }
1134
1135 // p_min = upper-left, p_max = lower-right
1136 // Note we don't render 1 pixels sized rectangles properly.
AddRect(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawCornerFlags rounding_corners,float thickness)1137 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners, float thickness)
1138 {
1139 if ((col & IM_COL32_A_MASK) == 0)
1140 return;
1141 if (Flags & ImDrawListFlags_AntiAliasedLines)
1142 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, rounding_corners);
1143 else
1144 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, rounding_corners); // Better looking lower-right corner and rounded non-AA shapes.
1145 PathStroke(col, true, thickness);
1146 }
1147
AddRectFilled(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col,float rounding,ImDrawCornerFlags rounding_corners)1148 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
1149 {
1150 if ((col & IM_COL32_A_MASK) == 0)
1151 return;
1152 if (rounding > 0.0f)
1153 {
1154 PathRect(p_min, p_max, rounding, rounding_corners);
1155 PathFillConvex(col);
1156 }
1157 else
1158 {
1159 PrimReserve(6, 4);
1160 PrimRect(p_min, p_max, col);
1161 }
1162 }
1163
1164 // p_min = upper-left, p_max = lower-right
AddRectFilledMultiColor(const ImVec2 & p_min,const ImVec2 & p_max,ImU32 col_upr_left,ImU32 col_upr_right,ImU32 col_bot_right,ImU32 col_bot_left)1165 void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
1166 {
1167 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
1168 return;
1169
1170 const ImVec2 uv = _Data->TexUvWhitePixel;
1171 PrimReserve(6, 4);
1172 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
1173 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
1174 PrimWriteVtx(p_min, uv, col_upr_left);
1175 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
1176 PrimWriteVtx(p_max, uv, col_bot_right);
1177 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
1178 }
1179
AddQuad(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness)1180 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
1181 {
1182 if ((col & IM_COL32_A_MASK) == 0)
1183 return;
1184
1185 PathLineTo(p1);
1186 PathLineTo(p2);
1187 PathLineTo(p3);
1188 PathLineTo(p4);
1189 PathStroke(col, true, thickness);
1190 }
1191
AddQuadFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col)1192 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
1193 {
1194 if ((col & IM_COL32_A_MASK) == 0)
1195 return;
1196
1197 PathLineTo(p1);
1198 PathLineTo(p2);
1199 PathLineTo(p3);
1200 PathLineTo(p4);
1201 PathFillConvex(col);
1202 }
1203
AddTriangle(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col,float thickness)1204 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
1205 {
1206 if ((col & IM_COL32_A_MASK) == 0)
1207 return;
1208
1209 PathLineTo(p1);
1210 PathLineTo(p2);
1211 PathLineTo(p3);
1212 PathStroke(col, true, thickness);
1213 }
1214
AddTriangleFilled(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,ImU32 col)1215 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
1216 {
1217 if ((col & IM_COL32_A_MASK) == 0)
1218 return;
1219
1220 PathLineTo(p1);
1221 PathLineTo(p2);
1222 PathLineTo(p3);
1223 PathFillConvex(col);
1224 }
1225
AddCircle(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1226 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1227 {
1228 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1229 return;
1230
1231 // Obtain segment count
1232 if (num_segments <= 0)
1233 {
1234 // Automatic segment count
1235 const int radius_idx = (int)radius - 1;
1236 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1237 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1238 else
1239 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1240 }
1241 else
1242 {
1243 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1244 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1245 }
1246
1247 // Because we are filling a closed shape we remove 1 from the count of segments/points
1248 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1249 if (num_segments == 12)
1250 PathArcToFast(center, radius - 0.5f, 0, 12 - 1);
1251 else
1252 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1253 PathStroke(col, true, thickness);
1254 }
1255
AddCircleFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1256 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1257 {
1258 if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
1259 return;
1260
1261 // Obtain segment count
1262 if (num_segments <= 0)
1263 {
1264 // Automatic segment count
1265 const int radius_idx = (int)radius - 1;
1266 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
1267 num_segments = _Data->CircleSegmentCounts[radius_idx]; // Use cached value
1268 else
1269 num_segments = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
1270 }
1271 else
1272 {
1273 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
1274 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
1275 }
1276
1277 // Because we are filling a closed shape we remove 1 from the count of segments/points
1278 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1279 if (num_segments == 12)
1280 PathArcToFast(center, radius, 0, 12 - 1);
1281 else
1282 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1283 PathFillConvex(col);
1284 }
1285
1286 // Guaranteed to honor 'num_segments'
AddNgon(const ImVec2 & center,float radius,ImU32 col,int num_segments,float thickness)1287 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
1288 {
1289 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1290 return;
1291
1292 // Because we are filling a closed shape we remove 1 from the count of segments/points
1293 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1294 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
1295 PathStroke(col, true, thickness);
1296 }
1297
1298 // Guaranteed to honor 'num_segments'
AddNgonFilled(const ImVec2 & center,float radius,ImU32 col,int num_segments)1299 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
1300 {
1301 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
1302 return;
1303
1304 // Because we are filling a closed shape we remove 1 from the count of segments/points
1305 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
1306 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
1307 PathFillConvex(col);
1308 }
1309
1310 // Cubic Bezier takes 4 controls points
AddBezierCurve(const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,ImU32 col,float thickness,int num_segments)1311 void ImDrawList::AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
1312 {
1313 if ((col & IM_COL32_A_MASK) == 0)
1314 return;
1315
1316 PathLineTo(p1);
1317 PathBezierCurveTo(p2, p3, p4, num_segments);
1318 PathStroke(col, false, thickness);
1319 }
1320
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)1321 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)
1322 {
1323 if ((col & IM_COL32_A_MASK) == 0)
1324 return;
1325
1326 if (text_end == NULL)
1327 text_end = text_begin + strlen(text_begin);
1328 if (text_begin == text_end)
1329 return;
1330
1331 // Pull default font/size from the shared ImDrawListSharedData instance
1332 if (font == NULL)
1333 font = _Data->Font;
1334 if (font_size == 0.0f)
1335 font_size = _Data->FontSize;
1336
1337 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
1338
1339 ImVec4 clip_rect = _CmdHeader.ClipRect;
1340 if (cpu_fine_clip_rect)
1341 {
1342 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
1343 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
1344 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
1345 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
1346 }
1347 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
1348 }
1349
AddText(const ImVec2 & pos,ImU32 col,const char * text_begin,const char * text_end)1350 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
1351 {
1352 AddText(NULL, 0.0f, pos, col, text_begin, text_end);
1353 }
1354
AddImage(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col)1355 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
1356 {
1357 if ((col & IM_COL32_A_MASK) == 0)
1358 return;
1359
1360 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1361 if (push_texture_id)
1362 PushTextureID(user_texture_id);
1363
1364 PrimReserve(6, 4);
1365 PrimRectUV(p_min, p_max, uv_min, uv_max, col);
1366
1367 if (push_texture_id)
1368 PopTextureID();
1369 }
1370
AddImageQuad(ImTextureID user_texture_id,const ImVec2 & p1,const ImVec2 & p2,const ImVec2 & p3,const ImVec2 & p4,const ImVec2 & uv1,const ImVec2 & uv2,const ImVec2 & uv3,const ImVec2 & uv4,ImU32 col)1371 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
1372 {
1373 if ((col & IM_COL32_A_MASK) == 0)
1374 return;
1375
1376 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
1377 if (push_texture_id)
1378 PushTextureID(user_texture_id);
1379
1380 PrimReserve(6, 4);
1381 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
1382
1383 if (push_texture_id)
1384 PopTextureID();
1385 }
1386
AddImageRounded(ImTextureID user_texture_id,const ImVec2 & p_min,const ImVec2 & p_max,const ImVec2 & uv_min,const ImVec2 & uv_max,ImU32 col,float rounding,ImDrawCornerFlags rounding_corners)1387 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawCornerFlags rounding_corners)
1388 {
1389 if ((col & IM_COL32_A_MASK) == 0)
1390 return;
1391
1392 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
1393 {
1394 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
1395 return;
1396 }
1397
1398 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
1399 if (push_texture_id)
1400 PushTextureID(user_texture_id);
1401
1402 int vert_start_idx = VtxBuffer.Size;
1403 PathRect(p_min, p_max, rounding, rounding_corners);
1404 PathFillConvex(col);
1405 int vert_end_idx = VtxBuffer.Size;
1406 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
1407
1408 if (push_texture_id)
1409 PopTextureID();
1410 }
1411
1412
1413 //-----------------------------------------------------------------------------
1414 // ImDrawListSplitter
1415 //-----------------------------------------------------------------------------
1416 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
1417 //-----------------------------------------------------------------------------
1418
ClearFreeMemory()1419 void ImDrawListSplitter::ClearFreeMemory()
1420 {
1421 for (int i = 0; i < _Channels.Size; i++)
1422 {
1423 if (i == _Current)
1424 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
1425 _Channels[i]._CmdBuffer.clear();
1426 _Channels[i]._IdxBuffer.clear();
1427 }
1428 _Current = 0;
1429 _Count = 1;
1430 _Channels.clear();
1431 }
1432
Split(ImDrawList * draw_list,int channels_count)1433 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
1434 {
1435 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
1436 int old_channels_count = _Channels.Size;
1437 if (old_channels_count < channels_count)
1438 _Channels.resize(channels_count);
1439 _Count = channels_count;
1440
1441 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
1442 // 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.
1443 // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
1444 memset(&_Channels[0], 0, sizeof(ImDrawChannel));
1445 for (int i = 1; i < channels_count; i++)
1446 {
1447 if (i >= old_channels_count)
1448 {
1449 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
1450 }
1451 else
1452 {
1453 _Channels[i]._CmdBuffer.resize(0);
1454 _Channels[i]._IdxBuffer.resize(0);
1455 }
1456 if (_Channels[i]._CmdBuffer.Size == 0)
1457 {
1458 ImDrawCmd draw_cmd;
1459 ImDrawCmd_HeaderCopy(&draw_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1460 _Channels[i]._CmdBuffer.push_back(draw_cmd);
1461 }
1462 }
1463 }
1464
Merge(ImDrawList * draw_list)1465 void ImDrawListSplitter::Merge(ImDrawList* draw_list)
1466 {
1467 // 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.
1468 if (_Count <= 1)
1469 return;
1470
1471 SetCurrentChannel(draw_list, 0);
1472 draw_list->_PopUnusedDrawCmd();
1473
1474 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
1475 int new_cmd_buffer_count = 0;
1476 int new_idx_buffer_count = 0;
1477 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
1478 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
1479 for (int i = 1; i < _Count; i++)
1480 {
1481 ImDrawChannel& ch = _Channels[i];
1482
1483 // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
1484 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
1485 ch._CmdBuffer.pop_back();
1486
1487 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
1488 {
1489 ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
1490 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
1491 {
1492 // Merge previous channel last draw command with current channel first draw command if matching.
1493 last_cmd->ElemCount += next_cmd->ElemCount;
1494 idx_offset += next_cmd->ElemCount;
1495 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
1496 }
1497 }
1498 if (ch._CmdBuffer.Size > 0)
1499 last_cmd = &ch._CmdBuffer.back();
1500 new_cmd_buffer_count += ch._CmdBuffer.Size;
1501 new_idx_buffer_count += ch._IdxBuffer.Size;
1502 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
1503 {
1504 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
1505 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
1506 }
1507 }
1508 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
1509 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
1510
1511 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
1512 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
1513 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
1514 for (int i = 1; i < _Count; i++)
1515 {
1516 ImDrawChannel& ch = _Channels[i];
1517 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
1518 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
1519 }
1520 draw_list->_IdxWritePtr = idx_write;
1521
1522 // Ensure there's always a non-callback draw command trailing the command-buffer
1523 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
1524 draw_list->AddDrawCmd();
1525
1526 // If current command is used with different settings we need to add a new command
1527 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1528 if (curr_cmd->ElemCount == 0)
1529 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1530 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1531 draw_list->AddDrawCmd();
1532
1533 _Count = 1;
1534 }
1535
SetCurrentChannel(ImDrawList * draw_list,int idx)1536 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
1537 {
1538 IM_ASSERT(idx >= 0 && idx < _Count);
1539 if (_Current == idx)
1540 return;
1541
1542 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
1543 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
1544 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
1545 _Current = idx;
1546 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
1547 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
1548 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
1549
1550 // If current command is used with different settings we need to add a new command
1551 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
1552 if (curr_cmd->ElemCount == 0)
1553 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
1554 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
1555 draw_list->AddDrawCmd();
1556 }
1557
1558 //-----------------------------------------------------------------------------
1559 // [SECTION] ImDrawData
1560 //-----------------------------------------------------------------------------
1561
1562 // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
DeIndexAllBuffers()1563 void ImDrawData::DeIndexAllBuffers()
1564 {
1565 ImVector<ImDrawVert> new_vtx_buffer;
1566 TotalVtxCount = TotalIdxCount = 0;
1567 for (int i = 0; i < CmdListsCount; i++)
1568 {
1569 ImDrawList* cmd_list = CmdLists[i];
1570 if (cmd_list->IdxBuffer.empty())
1571 continue;
1572 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
1573 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
1574 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
1575 cmd_list->VtxBuffer.swap(new_vtx_buffer);
1576 cmd_list->IdxBuffer.resize(0);
1577 TotalVtxCount += cmd_list->VtxBuffer.Size;
1578 }
1579 }
1580
1581 // Helper to scale the ClipRect field of each ImDrawCmd.
1582 // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
1583 // or if there is a difference between your window resolution and framebuffer resolution.
ScaleClipRects(const ImVec2 & fb_scale)1584 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
1585 {
1586 for (int i = 0; i < CmdListsCount; i++)
1587 {
1588 ImDrawList* cmd_list = CmdLists[i];
1589 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
1590 {
1591 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
1592 cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
1593 }
1594 }
1595 }
1596
1597 //-----------------------------------------------------------------------------
1598 // [SECTION] Helpers ShadeVertsXXX functions
1599 //-----------------------------------------------------------------------------
1600
1601 // Generic linear color gradient, write to RGB fields, leave A untouched.
ShadeVertsLinearColorGradientKeepAlpha(ImDrawList * draw_list,int vert_start_idx,int vert_end_idx,ImVec2 gradient_p0,ImVec2 gradient_p1,ImU32 col0,ImU32 col1)1602 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
1603 {
1604 ImVec2 gradient_extent = gradient_p1 - gradient_p0;
1605 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
1606 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1607 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1608 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
1609 {
1610 float d = ImDot(vert->pos - gradient_p0, gradient_extent);
1611 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
1612 int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
1613 int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
1614 int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
1615 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
1616 }
1617 }
1618
1619 // Distribute UV over (a, b) rectangle
ShadeVertsLinearUV(ImDrawList * draw_list,int vert_start_idx,int vert_end_idx,const ImVec2 & a,const ImVec2 & b,const ImVec2 & uv_a,const ImVec2 & uv_b,bool clamp)1620 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)
1621 {
1622 const ImVec2 size = b - a;
1623 const ImVec2 uv_size = uv_b - uv_a;
1624 const ImVec2 scale = ImVec2(
1625 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
1626 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
1627
1628 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
1629 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
1630 if (clamp)
1631 {
1632 const ImVec2 min = ImMin(uv_a, uv_b);
1633 const ImVec2 max = ImMax(uv_a, uv_b);
1634 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1635 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
1636 }
1637 else
1638 {
1639 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
1640 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
1641 }
1642 }
1643
1644 //-----------------------------------------------------------------------------
1645 // [SECTION] ImFontConfig
1646 //-----------------------------------------------------------------------------
1647
ImFontConfig()1648 ImFontConfig::ImFontConfig()
1649 {
1650 FontData = NULL;
1651 FontDataSize = 0;
1652 FontDataOwnedByAtlas = true;
1653 FontNo = 0;
1654 SizePixels = 0.0f;
1655 OversampleH = 3; // FIXME: 2 may be a better default?
1656 OversampleV = 1;
1657 PixelSnapH = false;
1658 GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
1659 GlyphOffset = ImVec2(0.0f, 0.0f);
1660 GlyphRanges = NULL;
1661 GlyphMinAdvanceX = 0.0f;
1662 GlyphMaxAdvanceX = FLT_MAX;
1663 MergeMode = false;
1664 RasterizerFlags = 0x00;
1665 RasterizerMultiply = 1.0f;
1666 EllipsisChar = (ImWchar)-1;
1667 memset(Name, 0, sizeof(Name));
1668 DstFont = NULL;
1669 }
1670
1671 //-----------------------------------------------------------------------------
1672 // [SECTION] ImFontAtlas
1673 //-----------------------------------------------------------------------------
1674
1675 // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
1676 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
1677 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 108; // Actual texture will be 2 times that + 1 spacing.
1678 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
1679 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
1680 {
1681 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
1682 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
1683 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
1684 "X - X.X - X.....X - X.....X -X...X - X...X- X..X "
1685 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
1686 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
1687 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
1688 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
1689 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
1690 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
1691 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
1692 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
1693 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
1694 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
1695 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
1696 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
1697 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
1698 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
1699 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
1700 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
1701 " X..X - X...X - X...X - X..X X..X - - X........X "
1702 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
1703 "------------ - X - X -X.....................X- ------------------"
1704 " ----------------------------------- X...XXXXXXXXXXXXX...X - "
1705 " - X..X X..X - "
1706 " - X.X X.X - "
1707 " - XX XX - "
1708 };
1709
1710 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
1711 {
1712 // Pos ........ Size ......... Offset ......
1713 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
1714 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
1715 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
1716 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
1717 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
1718 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
1719 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
1720 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
1721 };
1722
ImFontAtlas()1723 ImFontAtlas::ImFontAtlas()
1724 {
1725 Locked = false;
1726 Flags = ImFontAtlasFlags_None;
1727 TexID = (ImTextureID)NULL;
1728 TexDesiredWidth = 0;
1729 TexGlyphPadding = 1;
1730
1731 TexPixelsAlpha8 = NULL;
1732 TexPixelsRGBA32 = NULL;
1733 TexWidth = TexHeight = 0;
1734 TexUvScale = ImVec2(0.0f, 0.0f);
1735 TexUvWhitePixel = ImVec2(0.0f, 0.0f);
1736 PackIdMouseCursors = PackIdLines = -1;
1737 }
1738
~ImFontAtlas()1739 ImFontAtlas::~ImFontAtlas()
1740 {
1741 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1742 Clear();
1743 }
1744
ClearInputData()1745 void ImFontAtlas::ClearInputData()
1746 {
1747 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1748 for (int i = 0; i < ConfigData.Size; i++)
1749 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
1750 {
1751 IM_FREE(ConfigData[i].FontData);
1752 ConfigData[i].FontData = NULL;
1753 }
1754
1755 // When clearing this we lose access to the font name and other information used to build the font.
1756 for (int i = 0; i < Fonts.Size; i++)
1757 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
1758 {
1759 Fonts[i]->ConfigData = NULL;
1760 Fonts[i]->ConfigDataCount = 0;
1761 }
1762 ConfigData.clear();
1763 CustomRects.clear();
1764 PackIdMouseCursors = PackIdLines = -1;
1765 }
1766
ClearTexData()1767 void ImFontAtlas::ClearTexData()
1768 {
1769 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1770 if (TexPixelsAlpha8)
1771 IM_FREE(TexPixelsAlpha8);
1772 if (TexPixelsRGBA32)
1773 IM_FREE(TexPixelsRGBA32);
1774 TexPixelsAlpha8 = NULL;
1775 TexPixelsRGBA32 = NULL;
1776 }
1777
ClearFonts()1778 void ImFontAtlas::ClearFonts()
1779 {
1780 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1781 for (int i = 0; i < Fonts.Size; i++)
1782 IM_DELETE(Fonts[i]);
1783 Fonts.clear();
1784 }
1785
Clear()1786 void ImFontAtlas::Clear()
1787 {
1788 ClearInputData();
1789 ClearTexData();
1790 ClearFonts();
1791 }
1792
GetTexDataAsAlpha8(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1793 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1794 {
1795 // Build atlas on demand
1796 if (TexPixelsAlpha8 == NULL)
1797 {
1798 if (ConfigData.empty())
1799 AddFontDefault();
1800 Build();
1801 }
1802
1803 *out_pixels = TexPixelsAlpha8;
1804 if (out_width) *out_width = TexWidth;
1805 if (out_height) *out_height = TexHeight;
1806 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
1807 }
1808
GetTexDataAsRGBA32(unsigned char ** out_pixels,int * out_width,int * out_height,int * out_bytes_per_pixel)1809 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
1810 {
1811 // Convert to RGBA32 format on demand
1812 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
1813 if (!TexPixelsRGBA32)
1814 {
1815 unsigned char* pixels = NULL;
1816 GetTexDataAsAlpha8(&pixels, NULL, NULL);
1817 if (pixels)
1818 {
1819 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
1820 const unsigned char* src = pixels;
1821 unsigned int* dst = TexPixelsRGBA32;
1822 for (int n = TexWidth * TexHeight; n > 0; n--)
1823 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
1824 }
1825 }
1826
1827 *out_pixels = (unsigned char*)TexPixelsRGBA32;
1828 if (out_width) *out_width = TexWidth;
1829 if (out_height) *out_height = TexHeight;
1830 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
1831 }
1832
AddFont(const ImFontConfig * font_cfg)1833 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
1834 {
1835 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1836 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
1837 IM_ASSERT(font_cfg->SizePixels > 0.0f);
1838
1839 // Create new font
1840 if (!font_cfg->MergeMode)
1841 Fonts.push_back(IM_NEW(ImFont));
1842 else
1843 IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
1844
1845 ConfigData.push_back(*font_cfg);
1846 ImFontConfig& new_font_cfg = ConfigData.back();
1847 if (new_font_cfg.DstFont == NULL)
1848 new_font_cfg.DstFont = Fonts.back();
1849 if (!new_font_cfg.FontDataOwnedByAtlas)
1850 {
1851 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
1852 new_font_cfg.FontDataOwnedByAtlas = true;
1853 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
1854 }
1855
1856 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
1857 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
1858
1859 // Invalidate texture
1860 ClearTexData();
1861 return new_font_cfg.DstFont;
1862 }
1863
1864 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
1865 static unsigned int stb_decompress_length(const unsigned char* input);
1866 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
1867 static const char* GetDefaultCompressedFontDataTTFBase85();
Decode85Byte(char c)1868 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
Decode85(const unsigned char * src,unsigned char * dst)1869 static void Decode85(const unsigned char* src, unsigned char* dst)
1870 {
1871 while (*src)
1872 {
1873 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
1874 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.
1875 src += 5;
1876 dst += 4;
1877 }
1878 }
1879
1880 // Load embedded ProggyClean.ttf at size 13, disable oversampling
AddFontDefault(const ImFontConfig * font_cfg_template)1881 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
1882 {
1883 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1884 if (!font_cfg_template)
1885 {
1886 font_cfg.OversampleH = font_cfg.OversampleV = 1;
1887 font_cfg.PixelSnapH = true;
1888 }
1889 if (font_cfg.SizePixels <= 0.0f)
1890 font_cfg.SizePixels = 13.0f * 1.0f;
1891 if (font_cfg.Name[0] == '\0')
1892 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
1893 font_cfg.EllipsisChar = (ImWchar)0x0085;
1894
1895 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
1896 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
1897 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
1898 font->DisplayOffset.y = 1.0f;
1899 return font;
1900 }
1901
AddFontFromFileTTF(const char * filename,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1902 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1903 {
1904 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1905 size_t data_size = 0;
1906 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
1907 if (!data)
1908 {
1909 IM_ASSERT_USER_ERROR(0, "Could not load font file!");
1910 return NULL;
1911 }
1912 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1913 if (font_cfg.Name[0] == '\0')
1914 {
1915 // Store a short copy of filename into into the font name for convenience
1916 const char* p;
1917 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
1918 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
1919 }
1920 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
1921 }
1922
1923 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
AddFontFromMemoryTTF(void * ttf_data,int ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1924 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1925 {
1926 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
1927 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1928 IM_ASSERT(font_cfg.FontData == NULL);
1929 font_cfg.FontData = ttf_data;
1930 font_cfg.FontDataSize = ttf_size;
1931 font_cfg.SizePixels = size_pixels;
1932 if (glyph_ranges)
1933 font_cfg.GlyphRanges = glyph_ranges;
1934 return AddFont(&font_cfg);
1935 }
1936
AddFontFromMemoryCompressedTTF(const void * compressed_ttf_data,int compressed_ttf_size,float size_pixels,const ImFontConfig * font_cfg_template,const ImWchar * glyph_ranges)1937 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
1938 {
1939 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
1940 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
1941 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
1942
1943 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
1944 IM_ASSERT(font_cfg.FontData == NULL);
1945 font_cfg.FontDataOwnedByAtlas = true;
1946 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
1947 }
1948
AddFontFromMemoryCompressedBase85TTF(const char * compressed_ttf_data_base85,float size_pixels,const ImFontConfig * font_cfg,const ImWchar * glyph_ranges)1949 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
1950 {
1951 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
1952 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
1953 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
1954 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
1955 IM_FREE(compressed_ttf);
1956 return font;
1957 }
1958
AddCustomRectRegular(int width,int height)1959 int ImFontAtlas::AddCustomRectRegular(int width, int height)
1960 {
1961 IM_ASSERT(width > 0 && width <= 0xFFFF);
1962 IM_ASSERT(height > 0 && height <= 0xFFFF);
1963 ImFontAtlasCustomRect r;
1964 r.Width = (unsigned short)width;
1965 r.Height = (unsigned short)height;
1966 CustomRects.push_back(r);
1967 return CustomRects.Size - 1; // Return index
1968 }
1969
AddCustomRectFontGlyph(ImFont * font,ImWchar id,int width,int height,float advance_x,const ImVec2 & offset)1970 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
1971 {
1972 #ifdef IMGUI_USE_WCHAR32
1973 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
1974 #endif
1975 IM_ASSERT(font != NULL);
1976 IM_ASSERT(width > 0 && width <= 0xFFFF);
1977 IM_ASSERT(height > 0 && height <= 0xFFFF);
1978 ImFontAtlasCustomRect r;
1979 r.Width = (unsigned short)width;
1980 r.Height = (unsigned short)height;
1981 r.GlyphID = id;
1982 r.GlyphAdvanceX = advance_x;
1983 r.GlyphOffset = offset;
1984 r.Font = font;
1985 CustomRects.push_back(r);
1986 return CustomRects.Size - 1; // Return index
1987 }
1988
CalcCustomRectUV(const ImFontAtlasCustomRect * rect,ImVec2 * out_uv_min,ImVec2 * out_uv_max) const1989 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
1990 {
1991 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
1992 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
1993 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
1994 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
1995 }
1996
GetMouseCursorTexData(ImGuiMouseCursor cursor_type,ImVec2 * out_offset,ImVec2 * out_size,ImVec2 out_uv_border[2],ImVec2 out_uv_fill[2])1997 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
1998 {
1999 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
2000 return false;
2001 if (Flags & ImFontAtlasFlags_NoMouseCursors)
2002 return false;
2003
2004 IM_ASSERT(PackIdMouseCursors != -1);
2005 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
2006 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
2007 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
2008 *out_size = size;
2009 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
2010 out_uv_border[0] = (pos) * TexUvScale;
2011 out_uv_border[1] = (pos + size) * TexUvScale;
2012 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2013 out_uv_fill[0] = (pos) * TexUvScale;
2014 out_uv_fill[1] = (pos + size) * TexUvScale;
2015 return true;
2016 }
2017
Build()2018 bool ImFontAtlas::Build()
2019 {
2020 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
2021 return ImFontAtlasBuildWithStbTruetype(this);
2022 }
2023
ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256],float in_brighten_factor)2024 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
2025 {
2026 for (unsigned int i = 0; i < 256; i++)
2027 {
2028 unsigned int value = (unsigned int)(i * in_brighten_factor);
2029 out_table[i] = value > 255 ? 255 : (value & 0xFF);
2030 }
2031 }
2032
ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256],unsigned char * pixels,int x,int y,int w,int h,int stride)2033 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
2034 {
2035 unsigned char* data = pixels + x + y * stride;
2036 for (int j = h; j > 0; j--, data += stride)
2037 for (int i = 0; i < w; i++)
2038 data[i] = table[data[i]];
2039 }
2040
2041 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
2042 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
2043 struct ImFontBuildSrcData
2044 {
2045 stbtt_fontinfo FontInfo;
2046 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
2047 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
2048 stbtt_packedchar* PackedChars; // Output glyphs
2049 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
2050 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
2051 int GlyphsHighest; // Highest requested codepoint
2052 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
2053 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
2054 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
2055 };
2056
2057 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
2058 struct ImFontBuildDstData
2059 {
2060 int SrcCount; // Number of source fonts targeting this destination font.
2061 int GlyphsHighest;
2062 int GlyphsCount;
2063 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
2064 };
2065
UnpackBitVectorToFlatIndexList(const ImBitVector * in,ImVector<int> * out)2066 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
2067 {
2068 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
2069 const ImU32* it_begin = in->Storage.begin();
2070 const ImU32* it_end = in->Storage.end();
2071 for (const ImU32* it = it_begin; it < it_end; it++)
2072 if (ImU32 entries_32 = *it)
2073 for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
2074 if (entries_32 & ((ImU32)1 << bit_n))
2075 out->push_back((int)(((it - it_begin) << 5) + bit_n));
2076 }
2077
ImFontAtlasBuildWithStbTruetype(ImFontAtlas * atlas)2078 bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
2079 {
2080 IM_ASSERT(atlas->ConfigData.Size > 0);
2081
2082 ImFontAtlasBuildInit(atlas);
2083
2084 // Clear atlas
2085 atlas->TexID = (ImTextureID)NULL;
2086 atlas->TexWidth = atlas->TexHeight = 0;
2087 atlas->TexUvScale = ImVec2(0.0f, 0.0f);
2088 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
2089 atlas->ClearTexData();
2090
2091 // Temporary storage for building
2092 ImVector<ImFontBuildSrcData> src_tmp_array;
2093 ImVector<ImFontBuildDstData> dst_tmp_array;
2094 src_tmp_array.resize(atlas->ConfigData.Size);
2095 dst_tmp_array.resize(atlas->Fonts.Size);
2096 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
2097 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
2098
2099 // 1. Initialize font loading structure, check font data validity
2100 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
2101 {
2102 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2103 ImFontConfig& cfg = atlas->ConfigData[src_i];
2104 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
2105
2106 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
2107 src_tmp.DstIndex = -1;
2108 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
2109 if (cfg.DstFont == atlas->Fonts[output_i])
2110 src_tmp.DstIndex = output_i;
2111 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
2112 if (src_tmp.DstIndex == -1)
2113 return false;
2114
2115 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
2116 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
2117 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
2118 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
2119 return false;
2120
2121 // Measure highest codepoints
2122 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2123 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
2124 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2125 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
2126 dst_tmp.SrcCount++;
2127 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
2128 }
2129
2130 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
2131 int total_glyphs_count = 0;
2132 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2133 {
2134 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2135 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
2136 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
2137 if (dst_tmp.GlyphsSet.Storage.empty())
2138 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
2139
2140 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
2141 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
2142 {
2143 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
2144 continue;
2145 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
2146 continue;
2147
2148 // Add to avail set/counters
2149 src_tmp.GlyphsCount++;
2150 dst_tmp.GlyphsCount++;
2151 src_tmp.GlyphsSet.SetBit(codepoint);
2152 dst_tmp.GlyphsSet.SetBit(codepoint);
2153 total_glyphs_count++;
2154 }
2155 }
2156
2157 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
2158 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2159 {
2160 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2161 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
2162 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
2163 src_tmp.GlyphsSet.Clear();
2164 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
2165 }
2166 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
2167 dst_tmp_array[dst_i].GlyphsSet.Clear();
2168 dst_tmp_array.clear();
2169
2170 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
2171 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
2172 ImVector<stbrp_rect> buf_rects;
2173 ImVector<stbtt_packedchar> buf_packedchars;
2174 buf_rects.resize(total_glyphs_count);
2175 buf_packedchars.resize(total_glyphs_count);
2176 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
2177 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
2178
2179 // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
2180 int total_surface = 0;
2181 int buf_rects_out_n = 0;
2182 int buf_packedchars_out_n = 0;
2183 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2184 {
2185 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2186 if (src_tmp.GlyphsCount == 0)
2187 continue;
2188
2189 src_tmp.Rects = &buf_rects[buf_rects_out_n];
2190 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
2191 buf_rects_out_n += src_tmp.GlyphsCount;
2192 buf_packedchars_out_n += src_tmp.GlyphsCount;
2193
2194 // Convert our ranges in the format stb_truetype wants
2195 ImFontConfig& cfg = atlas->ConfigData[src_i];
2196 src_tmp.PackRange.font_size = cfg.SizePixels;
2197 src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
2198 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
2199 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
2200 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
2201 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
2202 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
2203
2204 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
2205 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
2206 const int padding = atlas->TexGlyphPadding;
2207 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
2208 {
2209 int x0, y0, x1, y1;
2210 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
2211 IM_ASSERT(glyph_index_in_font != 0);
2212 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
2213 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
2214 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
2215 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
2216 }
2217 }
2218
2219 // We need a width for the skyline algorithm, any width!
2220 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
2221 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
2222 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
2223 atlas->TexHeight = 0;
2224 if (atlas->TexDesiredWidth > 0)
2225 atlas->TexWidth = atlas->TexDesiredWidth;
2226 else
2227 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
2228
2229 // 5. Start packing
2230 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
2231 const int TEX_HEIGHT_MAX = 1024 * 32;
2232
2233 // [Bruno Levy]: replaced "={}" with memset() (={} generates a warning on MSVC).
2234 stbtt_pack_context spc;
2235 memset(&spc, 0, sizeof(spc));
2236
2237 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
2238 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
2239
2240 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
2241 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2242 {
2243 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2244 if (src_tmp.GlyphsCount == 0)
2245 continue;
2246
2247 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
2248
2249 // Extend texture height and mark missing glyphs as non-packed so we won't render them.
2250 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
2251 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2252 if (src_tmp.Rects[glyph_i].was_packed)
2253 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
2254 }
2255
2256 // 7. Allocate texture
2257 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
2258 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
2259 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
2260 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
2261 spc.pixels = atlas->TexPixelsAlpha8;
2262 spc.height = atlas->TexHeight;
2263
2264 // 8. Render/rasterize font characters into the texture
2265 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2266 {
2267 ImFontConfig& cfg = atlas->ConfigData[src_i];
2268 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2269 if (src_tmp.GlyphsCount == 0)
2270 continue;
2271
2272 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
2273
2274 // Apply multiply operator
2275 if (cfg.RasterizerMultiply != 1.0f)
2276 {
2277 unsigned char multiply_table[256];
2278 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
2279 stbrp_rect* r = &src_tmp.Rects[0];
2280 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
2281 if (r->was_packed)
2282 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
2283 }
2284 src_tmp.Rects = NULL;
2285 }
2286
2287 // End packing
2288 stbtt_PackEnd(&spc);
2289 buf_rects.clear();
2290
2291 // 9. Setup ImFont and glyphs for runtime
2292 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2293 {
2294 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
2295 if (src_tmp.GlyphsCount == 0)
2296 continue;
2297
2298 // When merging fonts with MergeMode=true:
2299 // - We can have multiple input fonts writing into a same destination font.
2300 // - dst_font->ConfigData is != from cfg which is our source configuration.
2301 ImFontConfig& cfg = atlas->ConfigData[src_i];
2302 ImFont* dst_font = cfg.DstFont;
2303
2304 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
2305 int unscaled_ascent, unscaled_descent, unscaled_line_gap;
2306 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
2307
2308 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
2309 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
2310 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
2311 const float font_off_x = cfg.GlyphOffset.x;
2312 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
2313
2314 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
2315 {
2316 // Register glyph
2317 const int codepoint = src_tmp.GlyphsList[glyph_i];
2318 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
2319 stbtt_aligned_quad q;
2320 float unused_x = 0.0f, unused_y = 0.0f;
2321 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
2322 dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
2323 }
2324 }
2325
2326 // Cleanup temporary (ImVector doesn't honor destructor)
2327 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
2328 src_tmp_array[src_i].~ImFontBuildSrcData();
2329
2330 ImFontAtlasBuildFinish(atlas);
2331 return true;
2332 }
2333
ImFontAtlasBuildSetupFont(ImFontAtlas * atlas,ImFont * font,ImFontConfig * font_config,float ascent,float descent)2334 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
2335 {
2336 if (!font_config->MergeMode)
2337 {
2338 font->ClearOutputData();
2339 font->FontSize = font_config->SizePixels;
2340 font->ConfigData = font_config;
2341 font->ConfigDataCount = 0;
2342 font->ContainerAtlas = atlas;
2343 font->Ascent = ascent;
2344 font->Descent = descent;
2345 }
2346 font->ConfigDataCount++;
2347 }
2348
ImFontAtlasBuildPackCustomRects(ImFontAtlas * atlas,void * stbrp_context_opaque)2349 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
2350 {
2351 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
2352 IM_ASSERT(pack_context != NULL);
2353
2354 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
2355 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
2356
2357 ImVector<stbrp_rect> pack_rects;
2358 pack_rects.resize(user_rects.Size);
2359 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
2360 for (int i = 0; i < user_rects.Size; i++)
2361 {
2362 pack_rects[i].w = user_rects[i].Width;
2363 pack_rects[i].h = user_rects[i].Height;
2364 }
2365 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
2366 for (int i = 0; i < pack_rects.Size; i++)
2367 if (pack_rects[i].was_packed)
2368 {
2369 user_rects[i].X = pack_rects[i].x;
2370 user_rects[i].Y = pack_rects[i].y;
2371 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
2372 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
2373 }
2374 }
2375
ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas * atlas,int x,int y,int w,int h,const char * in_str,char in_marker_char,unsigned char in_marker_pixel_value)2376 void ImFontAtlasBuildRender1bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
2377 {
2378 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
2379 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
2380 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
2381 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
2382 for (int off_x = 0; off_x < w; off_x++)
2383 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
2384 }
2385
ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas * atlas)2386 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
2387 {
2388 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
2389 IM_ASSERT(r->IsPacked());
2390
2391 const int w = atlas->TexWidth;
2392 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2393 {
2394 // Render/copy pixels
2395 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
2396 const int x_for_white = r->X;
2397 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
2398 ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
2399 ImFontAtlasBuildRender1bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
2400 }
2401 else
2402 {
2403 // Render 4 white pixels
2404 IM_ASSERT(r->Width == 2 && r->Height == 2);
2405 const int offset = (int)r->X + (int)r->Y * w;
2406 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
2407 }
2408 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
2409 }
2410
ImFontAtlasBuildRenderLinesTexData(ImFontAtlas * atlas)2411 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
2412 {
2413 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
2414 return;
2415
2416 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
2417 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
2418 IM_ASSERT(r->IsPacked());
2419 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
2420 {
2421 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
2422 unsigned int y = n;
2423 unsigned int line_width = n;
2424 unsigned int pad_left = (r->Width - line_width) / 2;
2425 unsigned int pad_right = r->Width - (pad_left + line_width);
2426
2427 // Write each slice
2428 IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
2429 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
2430 memset(write_ptr, 0x00, pad_left);
2431 memset(write_ptr + pad_left, 0xFF, line_width);
2432 memset(write_ptr + pad_left + line_width, 0x00, pad_right);
2433
2434 // Calculate UVs for this line
2435 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
2436 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
2437 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
2438 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
2439 }
2440 }
2441
2442 // Note: this is called / shared by both the stb_truetype and the FreeType builder
ImFontAtlasBuildInit(ImFontAtlas * atlas)2443 void ImFontAtlasBuildInit(ImFontAtlas* atlas)
2444 {
2445 // Register texture region for mouse cursors or standard white pixels
2446 if (atlas->PackIdMouseCursors < 0)
2447 {
2448 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
2449 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
2450 else
2451 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
2452 }
2453
2454 // Register texture region for thick lines
2455 // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
2456 if (atlas->PackIdLines < 0)
2457 {
2458 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
2459 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
2460 }
2461 }
2462
2463 // This is called/shared by both the stb_truetype and the FreeType builder.
ImFontAtlasBuildFinish(ImFontAtlas * atlas)2464 void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
2465 {
2466 // Render into our custom data blocks
2467 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
2468 ImFontAtlasBuildRenderDefaultTexData(atlas);
2469 ImFontAtlasBuildRenderLinesTexData(atlas);
2470
2471 // Register custom rectangle glyphs
2472 for (int i = 0; i < atlas->CustomRects.Size; i++)
2473 {
2474 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
2475 if (r->Font == NULL || r->GlyphID == 0)
2476 continue;
2477
2478 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
2479 IM_ASSERT(r->Font->ContainerAtlas == atlas);
2480 ImVec2 uv0, uv1;
2481 atlas->CalcCustomRectUV(r, &uv0, &uv1);
2482 r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
2483 }
2484
2485 // Build all fonts lookup tables
2486 for (int i = 0; i < atlas->Fonts.Size; i++)
2487 if (atlas->Fonts[i]->DirtyLookupTables)
2488 atlas->Fonts[i]->BuildLookupTable();
2489
2490 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
2491 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
2492 // FIXME: Also note that 0x2026 is currently seldom included in our font ranges. Because of this we are more likely to use three individual dots.
2493 for (int i = 0; i < atlas->Fonts.size(); i++)
2494 {
2495 ImFont* font = atlas->Fonts[i];
2496 if (font->EllipsisChar != (ImWchar)-1)
2497 continue;
2498 const ImWchar ellipsis_variants[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
2499 for (int j = 0; j < IM_ARRAYSIZE(ellipsis_variants); j++)
2500 if (font->FindGlyphNoFallback(ellipsis_variants[j]) != NULL) // Verify glyph exists
2501 {
2502 font->EllipsisChar = ellipsis_variants[j];
2503 break;
2504 }
2505 }
2506 }
2507
2508 // Retrieve list of range (2 int per range, values are inclusive)
GetGlyphRangesDefault()2509 const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
2510 {
2511 static const ImWchar ranges[] =
2512 {
2513 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2514 0,
2515 };
2516 return &ranges[0];
2517 }
2518
GetGlyphRangesKorean()2519 const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
2520 {
2521 static const ImWchar ranges[] =
2522 {
2523 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2524 0x3131, 0x3163, // Korean alphabets
2525 0xAC00, 0xD7A3, // Korean characters
2526 0,
2527 };
2528 return &ranges[0];
2529 }
2530
GetGlyphRangesChineseFull()2531 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
2532 {
2533 static const ImWchar ranges[] =
2534 {
2535 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2536 0x2000, 0x206F, // General Punctuation
2537 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2538 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2539 0xFF00, 0xFFEF, // Half-width characters
2540 0x4e00, 0x9FAF, // CJK Ideograms
2541 0,
2542 };
2543 return &ranges[0];
2544 }
2545
UnpackAccumulativeOffsetsIntoRanges(int base_codepoint,const short * accumulative_offsets,int accumulative_offsets_count,ImWchar * out_ranges)2546 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
2547 {
2548 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
2549 {
2550 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
2551 base_codepoint += accumulative_offsets[n];
2552 }
2553 out_ranges[0] = 0;
2554 }
2555
2556 //-------------------------------------------------------------------------
2557 // [SECTION] ImFontAtlas glyph ranges helpers
2558 //-------------------------------------------------------------------------
2559
GetGlyphRangesChineseSimplifiedCommon()2560 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
2561 {
2562 // Store 2500 regularly used characters for Simplified Chinese.
2563 // 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
2564 // This table covers 97.97% of all characters used during the month in July, 1987.
2565 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2566 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2567 static const short accumulative_offsets_from_0x4E00[] =
2568 {
2569 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,
2570 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,
2571 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,
2572 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,
2573 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,
2574 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,
2575 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,
2576 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,
2577 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,
2578 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,
2579 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,
2580 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,
2581 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,
2582 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,
2583 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,
2584 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,
2585 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,
2586 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,
2587 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,
2588 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,
2589 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,
2590 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,
2591 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,
2592 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,
2593 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,
2594 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,
2595 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,
2596 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,
2597 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,
2598 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,
2599 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,
2600 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,
2601 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,
2602 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,
2603 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,
2604 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,
2605 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,
2606 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,
2607 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,
2608 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
2609 };
2610 static ImWchar base_ranges[] = // not zero-terminated
2611 {
2612 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2613 0x2000, 0x206F, // General Punctuation
2614 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2615 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2616 0xFF00, 0xFFEF // Half-width characters
2617 };
2618 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
2619 if (!full_ranges[0])
2620 {
2621 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2622 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2623 }
2624 return &full_ranges[0];
2625 }
2626
GetGlyphRangesJapanese()2627 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
2628 {
2629 // 1946 common ideograms code points for Japanese
2630 // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
2631 // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
2632 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
2633 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
2634 static const short accumulative_offsets_from_0x4E00[] =
2635 {
2636 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,
2637 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,
2638 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,
2639 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,
2640 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,
2641 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,
2642 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,
2643 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,
2644 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,
2645 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,
2646 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,
2647 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,
2648 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,
2649 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,
2650 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,
2651 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,
2652 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,
2653 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,
2654 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,
2655 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,
2656 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,
2657 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,
2658 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,
2659 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,
2660 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,
2661 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,
2662 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,
2663 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,
2664 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,
2665 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,
2666 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,
2667 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,
2668 };
2669 static ImWchar base_ranges[] = // not zero-terminated
2670 {
2671 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2672 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
2673 0x31F0, 0x31FF, // Katakana Phonetic Extensions
2674 0xFF00, 0xFFEF // Half-width characters
2675 };
2676 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
2677 if (!full_ranges[0])
2678 {
2679 memcpy(full_ranges, base_ranges, sizeof(base_ranges));
2680 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
2681 }
2682 return &full_ranges[0];
2683 }
2684
GetGlyphRangesCyrillic()2685 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
2686 {
2687 static const ImWchar ranges[] =
2688 {
2689 0x0020, 0x00FF, // Basic Latin + Latin Supplement
2690 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
2691 0x2DE0, 0x2DFF, // Cyrillic Extended-A
2692 0xA640, 0xA69F, // Cyrillic Extended-B
2693 0,
2694 };
2695 return &ranges[0];
2696 }
2697
GetGlyphRangesThai()2698 const ImWchar* ImFontAtlas::GetGlyphRangesThai()
2699 {
2700 static const ImWchar ranges[] =
2701 {
2702 0x0020, 0x00FF, // Basic Latin
2703 0x2010, 0x205E, // Punctuations
2704 0x0E00, 0x0E7F, // Thai
2705 0,
2706 };
2707 return &ranges[0];
2708 }
2709
GetGlyphRangesVietnamese()2710 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
2711 {
2712 static const ImWchar ranges[] =
2713 {
2714 0x0020, 0x00FF, // Basic Latin
2715 0x0102, 0x0103,
2716 0x0110, 0x0111,
2717 0x0128, 0x0129,
2718 0x0168, 0x0169,
2719 0x01A0, 0x01A1,
2720 0x01AF, 0x01B0,
2721 0x1EA0, 0x1EF9,
2722 0,
2723 };
2724 return &ranges[0];
2725 }
2726
2727 //-----------------------------------------------------------------------------
2728 // [SECTION] ImFontGlyphRangesBuilder
2729 //-----------------------------------------------------------------------------
2730
AddText(const char * text,const char * text_end)2731 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
2732 {
2733 while (text_end ? (text < text_end) : *text)
2734 {
2735 unsigned int c = 0;
2736 int c_len = ImTextCharFromUtf8(&c, text, text_end);
2737 text += c_len;
2738 if (c_len == 0)
2739 break;
2740 AddChar((ImWchar)c);
2741 }
2742 }
2743
AddRanges(const ImWchar * ranges)2744 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
2745 {
2746 for (; ranges[0]; ranges += 2)
2747 for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
2748 AddChar(c);
2749 }
2750
BuildRanges(ImVector<ImWchar> * out_ranges)2751 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
2752 {
2753 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
2754 for (int n = 0; n <= max_codepoint; n++)
2755 if (GetBit(n))
2756 {
2757 out_ranges->push_back((ImWchar)n);
2758 while (n < max_codepoint && GetBit(n + 1))
2759 n++;
2760 out_ranges->push_back((ImWchar)n);
2761 }
2762 out_ranges->push_back(0);
2763 }
2764
2765 //-----------------------------------------------------------------------------
2766 // [SECTION] ImFont
2767 //-----------------------------------------------------------------------------
2768
ImFont()2769 ImFont::ImFont()
2770 {
2771 FontSize = 0.0f;
2772 FallbackAdvanceX = 0.0f;
2773 FallbackChar = (ImWchar)'?';
2774 EllipsisChar = (ImWchar)-1;
2775 DisplayOffset = ImVec2(0.0f, 0.0f);
2776 FallbackGlyph = NULL;
2777 ContainerAtlas = NULL;
2778 ConfigData = NULL;
2779 ConfigDataCount = 0;
2780 DirtyLookupTables = false;
2781 Scale = 1.0f;
2782 Ascent = Descent = 0.0f;
2783 MetricsTotalSurface = 0;
2784 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2785 }
2786
~ImFont()2787 ImFont::~ImFont()
2788 {
2789 ClearOutputData();
2790 }
2791
ClearOutputData()2792 void ImFont::ClearOutputData()
2793 {
2794 FontSize = 0.0f;
2795 FallbackAdvanceX = 0.0f;
2796 Glyphs.clear();
2797 IndexAdvanceX.clear();
2798 IndexLookup.clear();
2799 FallbackGlyph = NULL;
2800 ContainerAtlas = NULL;
2801 DirtyLookupTables = true;
2802 Ascent = Descent = 0.0f;
2803 MetricsTotalSurface = 0;
2804 }
2805
BuildLookupTable()2806 void ImFont::BuildLookupTable()
2807 {
2808 int max_codepoint = 0;
2809 for (int i = 0; i != Glyphs.Size; i++)
2810 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
2811
2812 // Build lookup table
2813 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
2814 IndexAdvanceX.clear();
2815 IndexLookup.clear();
2816 DirtyLookupTables = false;
2817 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
2818 GrowIndex(max_codepoint + 1);
2819 for (int i = 0; i < Glyphs.Size; i++)
2820 {
2821 int codepoint = (int)Glyphs[i].Codepoint;
2822 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
2823 IndexLookup[codepoint] = (ImWchar)i;
2824
2825 // Mark 4K page as used
2826 const int page_n = codepoint / 4096;
2827 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
2828 }
2829
2830 // Create a glyph to handle TAB
2831 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
2832 if (FindGlyph((ImWchar)' '))
2833 {
2834 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
2835 Glyphs.resize(Glyphs.Size + 1);
2836 ImFontGlyph& tab_glyph = Glyphs.back();
2837 tab_glyph = *FindGlyph((ImWchar)' ');
2838 tab_glyph.Codepoint = '\t';
2839 tab_glyph.AdvanceX *= IM_TABSIZE;
2840 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
2841 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
2842 }
2843
2844 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
2845 SetGlyphVisible((ImWchar)' ', false);
2846 SetGlyphVisible((ImWchar)'\t', false);
2847
2848 // Setup fall-backs
2849 FallbackGlyph = FindGlyphNoFallback(FallbackChar);
2850 FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
2851 for (int i = 0; i < max_codepoint + 1; i++)
2852 if (IndexAdvanceX[i] < 0.0f)
2853 IndexAdvanceX[i] = FallbackAdvanceX;
2854 }
2855
2856 // API is designed this way to avoid exposing the 4K page size
2857 // e.g. use with IsGlyphRangeUnused(0, 255)
IsGlyphRangeUnused(unsigned int c_begin,unsigned int c_last)2858 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
2859 {
2860 unsigned int page_begin = (c_begin / 4096);
2861 unsigned int page_last = (c_last / 4096);
2862 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
2863 if ((page_n >> 3) < sizeof(Used4kPagesMap))
2864 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
2865 return false;
2866 return true;
2867 }
2868
SetGlyphVisible(ImWchar c,bool visible)2869 void ImFont::SetGlyphVisible(ImWchar c, bool visible)
2870 {
2871 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
2872 glyph->Visible = visible ? 1 : 0;
2873 }
2874
SetFallbackChar(ImWchar c)2875 void ImFont::SetFallbackChar(ImWchar c)
2876 {
2877 FallbackChar = c;
2878 BuildLookupTable();
2879 }
2880
GrowIndex(int new_size)2881 void ImFont::GrowIndex(int new_size)
2882 {
2883 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
2884 if (new_size <= IndexLookup.Size)
2885 return;
2886 IndexAdvanceX.resize(new_size, -1.0f);
2887 IndexLookup.resize(new_size, (ImWchar)-1);
2888 }
2889
2890 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
2891 // 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).
2892 // 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
AddGlyph(ImFontConfig * cfg,ImWchar codepoint,float x0,float y0,float x1,float y1,float u0,float v0,float u1,float v1,float advance_x)2893 void ImFont::AddGlyph(ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
2894 {
2895 if (cfg != NULL)
2896 {
2897 // Clamp & recenter if needed
2898 const float advance_x_original = advance_x;
2899 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
2900 if (advance_x != advance_x_original)
2901 {
2902 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
2903 x0 += char_off_x;
2904 x1 += char_off_x;
2905 }
2906
2907 // Snap to pixel
2908 if (cfg->PixelSnapH)
2909 advance_x = IM_ROUND(advance_x);
2910
2911 // Bake spacing
2912 advance_x += cfg->GlyphExtraSpacing.x;
2913 }
2914
2915 Glyphs.resize(Glyphs.Size + 1);
2916 ImFontGlyph& glyph = Glyphs.back();
2917 glyph.Codepoint = (unsigned int)codepoint;
2918 glyph.Visible = (x0 != x1) && (y0 != y1);
2919 glyph.X0 = x0;
2920 glyph.Y0 = y0;
2921 glyph.X1 = x1;
2922 glyph.Y1 = y1;
2923 glyph.U0 = u0;
2924 glyph.V0 = v0;
2925 glyph.U1 = u1;
2926 glyph.V1 = v1;
2927 glyph.AdvanceX = advance_x;
2928
2929 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
2930 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
2931 float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
2932 DirtyLookupTables = true;
2933 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
2934 }
2935
AddRemapChar(ImWchar dst,ImWchar src,bool overwrite_dst)2936 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
2937 {
2938 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
2939 unsigned int index_size = (unsigned int)IndexLookup.Size;
2940
2941 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
2942 return;
2943 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
2944 return;
2945
2946 GrowIndex(dst + 1);
2947 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
2948 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
2949 }
2950
FindGlyph(ImWchar c) const2951 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
2952 {
2953 if (c >= (size_t)IndexLookup.Size)
2954 return FallbackGlyph;
2955 const ImWchar i = IndexLookup.Data[c];
2956 if (i == (ImWchar)-1)
2957 return FallbackGlyph;
2958 return &Glyphs.Data[i];
2959 }
2960
FindGlyphNoFallback(ImWchar c) const2961 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
2962 {
2963 if (c >= (size_t)IndexLookup.Size)
2964 return NULL;
2965 const ImWchar i = IndexLookup.Data[c];
2966 if (i == (ImWchar)-1)
2967 return NULL;
2968 return &Glyphs.Data[i];
2969 }
2970
CalcWordWrapPositionA(float scale,const char * text,const char * text_end,float wrap_width) const2971 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
2972 {
2973 // Simple word-wrapping for English, not full-featured. Please submit failing cases!
2974 // 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.)
2975
2976 // For references, possible wrap point marked with ^
2977 // "aaa bbb, ccc,ddd. eee fff. ggg!"
2978 // ^ ^ ^ ^ ^__ ^ ^
2979
2980 // List of hardcoded separators: .,;!?'"
2981
2982 // Skip extra blanks after a line returns (that includes not counting them in width computation)
2983 // e.g. "Hello world" --> "Hello" "World"
2984
2985 // Cut words that cannot possibly fit within one line.
2986 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
2987
2988 float line_width = 0.0f;
2989 float word_width = 0.0f;
2990 float blank_width = 0.0f;
2991 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
2992
2993 const char* word_end = text;
2994 const char* prev_word_end = NULL;
2995 bool inside_word = true;
2996
2997 const char* s = text;
2998 while (s < text_end)
2999 {
3000 unsigned int c = (unsigned int)*s;
3001 const char* next_s;
3002 if (c < 0x80)
3003 next_s = s + 1;
3004 else
3005 next_s = s + ImTextCharFromUtf8(&c, s, text_end);
3006 if (c == 0)
3007 break;
3008
3009 if (c < 32)
3010 {
3011 if (c == '\n')
3012 {
3013 line_width = word_width = blank_width = 0.0f;
3014 inside_word = true;
3015 s = next_s;
3016 continue;
3017 }
3018 if (c == '\r')
3019 {
3020 s = next_s;
3021 continue;
3022 }
3023 }
3024
3025 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
3026 if (ImCharIsBlankW(c))
3027 {
3028 if (inside_word)
3029 {
3030 line_width += blank_width;
3031 blank_width = 0.0f;
3032 word_end = s;
3033 }
3034 blank_width += char_width;
3035 inside_word = false;
3036 }
3037 else
3038 {
3039 word_width += char_width;
3040 if (inside_word)
3041 {
3042 word_end = next_s;
3043 }
3044 else
3045 {
3046 prev_word_end = word_end;
3047 line_width += word_width + blank_width;
3048 word_width = blank_width = 0.0f;
3049 }
3050
3051 // Allow wrapping after punctuation.
3052 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
3053 }
3054
3055 // We ignore blank width at the end of the line (they can be skipped)
3056 if (line_width + word_width > wrap_width)
3057 {
3058 // Words that cannot possibly fit within an entire line will be cut anywhere.
3059 if (word_width < wrap_width)
3060 s = prev_word_end ? prev_word_end : word_end;
3061 break;
3062 }
3063
3064 s = next_s;
3065 }
3066
3067 return s;
3068 }
3069
CalcTextSizeA(float size,float max_width,float wrap_width,const char * text_begin,const char * text_end,const char ** remaining) const3070 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
3071 {
3072 if (!text_end)
3073 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
3074
3075 const float line_height = size;
3076 const float scale = size / FontSize;
3077
3078 ImVec2 text_size = ImVec2(0, 0);
3079 float line_width = 0.0f;
3080
3081 const bool word_wrap_enabled = (wrap_width > 0.0f);
3082 const char* word_wrap_eol = NULL;
3083
3084 const char* s = text_begin;
3085 while (s < text_end)
3086 {
3087 if (word_wrap_enabled)
3088 {
3089 // 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.
3090 if (!word_wrap_eol)
3091 {
3092 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
3093 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3094 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
3095 }
3096
3097 if (s >= word_wrap_eol)
3098 {
3099 if (text_size.x < line_width)
3100 text_size.x = line_width;
3101 text_size.y += line_height;
3102 line_width = 0.0f;
3103 word_wrap_eol = NULL;
3104
3105 // Wrapping skips upcoming blanks
3106 while (s < text_end)
3107 {
3108 const char c = *s;
3109 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3110 }
3111 continue;
3112 }
3113 }
3114
3115 // Decode and advance source
3116 const char* prev_s = s;
3117 unsigned int c = (unsigned int)*s;
3118 if (c < 0x80)
3119 {
3120 s += 1;
3121 }
3122 else
3123 {
3124 s += ImTextCharFromUtf8(&c, s, text_end);
3125 if (c == 0) // Malformed UTF-8?
3126 break;
3127 }
3128
3129 if (c < 32)
3130 {
3131 if (c == '\n')
3132 {
3133 text_size.x = ImMax(text_size.x, line_width);
3134 text_size.y += line_height;
3135 line_width = 0.0f;
3136 continue;
3137 }
3138 if (c == '\r')
3139 continue;
3140 }
3141
3142 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
3143 if (line_width + char_width >= max_width)
3144 {
3145 s = prev_s;
3146 break;
3147 }
3148
3149 line_width += char_width;
3150 }
3151
3152 if (text_size.x < line_width)
3153 text_size.x = line_width;
3154
3155 if (line_width > 0 || text_size.y == 0.0f)
3156 text_size.y += line_height;
3157
3158 if (remaining)
3159 *remaining = s;
3160
3161 return text_size;
3162 }
3163
RenderChar(ImDrawList * draw_list,float size,ImVec2 pos,ImU32 col,ImWchar c) const3164 void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
3165 {
3166 const ImFontGlyph* glyph = FindGlyph(c);
3167 if (!glyph || !glyph->Visible)
3168 return;
3169 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
3170 pos.x = IM_FLOOR(pos.x + DisplayOffset.x);
3171 pos.y = IM_FLOOR(pos.y + DisplayOffset.y);
3172 draw_list->PrimReserve(6, 4);
3173 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);
3174 }
3175
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) const3176 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
3177 {
3178 if (!text_end)
3179 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
3180
3181 // Align to be pixel perfect
3182 pos.x = IM_FLOOR(pos.x + DisplayOffset.x);
3183 pos.y = IM_FLOOR(pos.y + DisplayOffset.y);
3184 float x = pos.x;
3185 float y = pos.y;
3186 if (y > clip_rect.w)
3187 return;
3188
3189 const float scale = size / FontSize;
3190 const float line_height = FontSize * scale;
3191 const bool word_wrap_enabled = (wrap_width > 0.0f);
3192 const char* word_wrap_eol = NULL;
3193
3194 // Fast-forward to first visible line
3195 const char* s = text_begin;
3196 if (y + line_height < clip_rect.y && !word_wrap_enabled)
3197 while (y + line_height < clip_rect.y && s < text_end)
3198 {
3199 s = (const char*)memchr(s, '\n', text_end - s);
3200 s = s ? s + 1 : text_end;
3201 y += line_height;
3202 }
3203
3204 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
3205 // 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)
3206 if (text_end - s > 10000 && !word_wrap_enabled)
3207 {
3208 const char* s_end = s;
3209 float y_end = y;
3210 while (y_end < clip_rect.w && s_end < text_end)
3211 {
3212 s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
3213 s_end = s_end ? s_end + 1 : text_end;
3214 y_end += line_height;
3215 }
3216 text_end = s_end;
3217 }
3218 if (s == text_end)
3219 return;
3220
3221 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
3222 const int vtx_count_max = (int)(text_end - s) * 4;
3223 const int idx_count_max = (int)(text_end - s) * 6;
3224 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
3225 draw_list->PrimReserve(idx_count_max, vtx_count_max);
3226
3227 ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
3228 ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
3229 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
3230
3231 while (s < text_end)
3232 {
3233 if (word_wrap_enabled)
3234 {
3235 // 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.
3236 if (!word_wrap_eol)
3237 {
3238 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
3239 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
3240 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
3241 }
3242
3243 if (s >= word_wrap_eol)
3244 {
3245 x = pos.x;
3246 y += line_height;
3247 word_wrap_eol = NULL;
3248
3249 // Wrapping skips upcoming blanks
3250 while (s < text_end)
3251 {
3252 const char c = *s;
3253 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
3254 }
3255 continue;
3256 }
3257 }
3258
3259 // Decode and advance source
3260 unsigned int c = (unsigned int)*s;
3261 if (c < 0x80)
3262 {
3263 s += 1;
3264 }
3265 else
3266 {
3267 s += ImTextCharFromUtf8(&c, s, text_end);
3268 if (c == 0) // Malformed UTF-8?
3269 break;
3270 }
3271
3272 if (c < 32)
3273 {
3274 if (c == '\n')
3275 {
3276 x = pos.x;
3277 y += line_height;
3278 if (y > clip_rect.w)
3279 break; // break out of main loop
3280 continue;
3281 }
3282 if (c == '\r')
3283 continue;
3284 }
3285
3286 const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
3287 if (glyph == NULL)
3288 continue;
3289
3290 float char_width = glyph->AdvanceX * scale;
3291 if (glyph->Visible)
3292 {
3293 // 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
3294 float x1 = x + glyph->X0 * scale;
3295 float x2 = x + glyph->X1 * scale;
3296 float y1 = y + glyph->Y0 * scale;
3297 float y2 = y + glyph->Y1 * scale;
3298 if (x1 <= clip_rect.z && x2 >= clip_rect.x)
3299 {
3300 // Render a character
3301 float u1 = glyph->U0;
3302 float v1 = glyph->V0;
3303 float u2 = glyph->U1;
3304 float v2 = glyph->V1;
3305
3306 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
3307 if (cpu_fine_clip)
3308 {
3309 if (x1 < clip_rect.x)
3310 {
3311 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
3312 x1 = clip_rect.x;
3313 }
3314 if (y1 < clip_rect.y)
3315 {
3316 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
3317 y1 = clip_rect.y;
3318 }
3319 if (x2 > clip_rect.z)
3320 {
3321 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
3322 x2 = clip_rect.z;
3323 }
3324 if (y2 > clip_rect.w)
3325 {
3326 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
3327 y2 = clip_rect.w;
3328 }
3329 if (y1 >= y2)
3330 {
3331 x += char_width;
3332 continue;
3333 }
3334 }
3335
3336 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
3337 {
3338 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
3339 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
3340 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;
3341 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;
3342 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;
3343 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;
3344 vtx_write += 4;
3345 vtx_current_idx += 4;
3346 idx_write += 6;
3347 }
3348 }
3349 }
3350 x += char_width;
3351 }
3352
3353 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
3354 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
3355 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
3356 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
3357 draw_list->_VtxWritePtr = vtx_write;
3358 draw_list->_IdxWritePtr = idx_write;
3359 draw_list->_VtxCurrentIdx = vtx_current_idx;
3360 }
3361
3362 //-----------------------------------------------------------------------------
3363 // [SECTION] ImGui Internal Render Helpers
3364 //-----------------------------------------------------------------------------
3365 // Vaguely redesigned to stop accessing ImGui global state:
3366 // - RenderArrow()
3367 // - RenderBullet()
3368 // - RenderCheckMark()
3369 // - RenderMouseCursor()
3370 // - RenderArrowDockMenu()
3371 // - RenderArrowPointingAt()
3372 // - RenderRectFilledRangeH()
3373 // - RenderRectFilledWithHole()
3374 //-----------------------------------------------------------------------------
3375 // Function in need of a redesign (legacy mess)
3376 // - RenderColorRectWithAlphaCheckerboard()
3377 //-----------------------------------------------------------------------------
3378
3379 // Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
RenderArrow(ImDrawList * draw_list,ImVec2 pos,ImU32 col,ImGuiDir dir,float scale)3380 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
3381 {
3382 const float h = draw_list->_Data->FontSize * 1.00f;
3383 float r = h * 0.40f * scale;
3384 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
3385
3386 ImVec2 a, b, c;
3387 switch (dir)
3388 {
3389 case ImGuiDir_Up:
3390 case ImGuiDir_Down:
3391 if (dir == ImGuiDir_Up) r = -r;
3392 a = ImVec2(+0.000f, +0.750f) * r;
3393 b = ImVec2(-0.866f, -0.750f) * r;
3394 c = ImVec2(+0.866f, -0.750f) * r;
3395 break;
3396 case ImGuiDir_Left:
3397 case ImGuiDir_Right:
3398 if (dir == ImGuiDir_Left) r = -r;
3399 a = ImVec2(+0.750f, +0.000f) * r;
3400 b = ImVec2(-0.750f, +0.866f) * r;
3401 c = ImVec2(-0.750f, -0.866f) * r;
3402 break;
3403 case ImGuiDir_None:
3404 case ImGuiDir_COUNT:
3405 IM_ASSERT(0);
3406 break;
3407 }
3408 draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
3409 }
3410
RenderBullet(ImDrawList * draw_list,ImVec2 pos,ImU32 col)3411 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
3412 {
3413 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
3414 }
3415
RenderCheckMark(ImDrawList * draw_list,ImVec2 pos,ImU32 col,float sz)3416 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
3417 {
3418 float thickness = ImMax(sz / 5.0f, 1.0f);
3419 sz -= thickness * 0.5f;
3420 pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
3421
3422 float third = sz / 3.0f;
3423 float bx = pos.x + third;
3424 float by = pos.y + sz - third * 0.5f;
3425 draw_list->PathLineTo(ImVec2(bx - third, by - third));
3426 draw_list->PathLineTo(ImVec2(bx, by));
3427 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
3428 draw_list->PathStroke(col, false, thickness);
3429 }
3430
RenderMouseCursor(ImDrawList * draw_list,ImVec2 pos,float scale,ImGuiMouseCursor mouse_cursor,ImU32 col_fill,ImU32 col_border,ImU32 col_shadow)3431 void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
3432 {
3433 if (mouse_cursor == ImGuiMouseCursor_None)
3434 return;
3435 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
3436
3437 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
3438 ImVec2 offset, size, uv[4];
3439 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
3440 {
3441 pos -= offset;
3442 const ImTextureID tex_id = font_atlas->TexID;
3443 draw_list->PushTextureID(tex_id);
3444 draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
3445 draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
3446 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
3447 draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
3448 draw_list->PopTextureID();
3449 }
3450 }
3451
3452 // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
RenderArrowPointingAt(ImDrawList * draw_list,ImVec2 pos,ImVec2 half_sz,ImGuiDir direction,ImU32 col)3453 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
3454 {
3455 switch (direction)
3456 {
3457 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;
3458 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;
3459 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;
3460 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;
3461 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
3462 }
3463 }
3464
3465 // This is less wide than RenderArrow() and we use in dock nodes instead of the regular RenderArrow() to denote a change of functionality,
3466 // and because the saved space means that the left-most tab label can stay at exactly the same position as the label of a loose window.
RenderArrowDockMenu(ImDrawList * draw_list,ImVec2 p_min,float sz,ImU32 col)3467 void ImGui::RenderArrowDockMenu(ImDrawList* draw_list, ImVec2 p_min, float sz, ImU32 col)
3468 {
3469 draw_list->AddRectFilled(p_min + ImVec2(sz * 0.10f, sz * 0.15f), p_min + ImVec2(sz * 0.70f, sz * 0.30f), col);
3470 RenderArrowPointingAt(draw_list, p_min + ImVec2(sz * 0.40f, sz * 0.85f), ImVec2(sz * 0.30f, sz * 0.40f), ImGuiDir_Down, col);
3471 }
3472
ImAcos01(float x)3473 static inline float ImAcos01(float x)
3474 {
3475 if (x <= 0.0f) return IM_PI * 0.5f;
3476 if (x >= 1.0f) return 0.0f;
3477 return ImAcos(x);
3478 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
3479 }
3480
3481 // FIXME: Cleanup and move code to ImDrawList.
RenderRectFilledRangeH(ImDrawList * draw_list,const ImRect & rect,ImU32 col,float x_start_norm,float x_end_norm,float rounding)3482 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
3483 {
3484 if (x_end_norm == x_start_norm)
3485 return;
3486 if (x_start_norm > x_end_norm)
3487 ImSwap(x_start_norm, x_end_norm);
3488
3489 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
3490 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
3491 if (rounding == 0.0f)
3492 {
3493 draw_list->AddRectFilled(p0, p1, col, 0.0f);
3494 return;
3495 }
3496
3497 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
3498 const float inv_rounding = 1.0f / rounding;
3499 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
3500 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
3501 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
3502 const float x0 = ImMax(p0.x, rect.Min.x + rounding);
3503 if (arc0_b == arc0_e)
3504 {
3505 draw_list->PathLineTo(ImVec2(x0, p1.y));
3506 draw_list->PathLineTo(ImVec2(x0, p0.y));
3507 }
3508 else if (arc0_b == 0.0f && arc0_e == half_pi)
3509 {
3510 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
3511 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
3512 }
3513 else
3514 {
3515 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
3516 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
3517 }
3518 if (p1.x > rect.Min.x + rounding)
3519 {
3520 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
3521 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
3522 const float x1 = ImMin(p1.x, rect.Max.x - rounding);
3523 if (arc1_b == arc1_e)
3524 {
3525 draw_list->PathLineTo(ImVec2(x1, p0.y));
3526 draw_list->PathLineTo(ImVec2(x1, p1.y));
3527 }
3528 else if (arc1_b == 0.0f && arc1_e == half_pi)
3529 {
3530 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
3531 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
3532 }
3533 else
3534 {
3535 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
3536 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
3537 }
3538 }
3539 draw_list->PathFillConvex(col);
3540 }
3541
RenderRectFilledWithHole(ImDrawList * draw_list,ImRect outer,ImRect inner,ImU32 col,float rounding)3542 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
3543 {
3544 const bool fill_L = (inner.Min.x > outer.Min.x);
3545 const bool fill_R = (inner.Max.x < outer.Max.x);
3546 const bool fill_U = (inner.Min.y > outer.Min.y);
3547 const bool fill_D = (inner.Max.y < outer.Max.y);
3548 if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopLeft) | (fill_D ? 0 : ImDrawCornerFlags_BotLeft));
3549 if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, (fill_U ? 0 : ImDrawCornerFlags_TopRight) | (fill_D ? 0 : ImDrawCornerFlags_BotRight));
3550 if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_TopLeft) | (fill_R ? 0 : ImDrawCornerFlags_TopRight));
3551 if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, (fill_L ? 0 : ImDrawCornerFlags_BotLeft) | (fill_R ? 0 : ImDrawCornerFlags_BotRight));
3552 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopLeft);
3553 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawCornerFlags_TopRight);
3554 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotLeft);
3555 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawCornerFlags_BotRight);
3556 }
3557
3558 // Helper for ColorPicker4()
3559 // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
3560 // Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
3561 // FIXME: uses ImGui::GetColorU32
RenderColorRectWithAlphaCheckerboard(ImDrawList * draw_list,ImVec2 p_min,ImVec2 p_max,ImU32 col,float grid_step,ImVec2 grid_off,float rounding,int rounding_corners_flags)3562 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, int rounding_corners_flags)
3563 {
3564 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
3565 {
3566 ImU32 col_bg1 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
3567 ImU32 col_bg2 = ImGui::GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
3568 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, rounding_corners_flags);
3569
3570 int yi = 0;
3571 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
3572 {
3573 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
3574 if (y2 <= y1)
3575 continue;
3576 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
3577 {
3578 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
3579 if (x2 <= x1)
3580 continue;
3581 int rounding_corners_flags_cell = 0;
3582 if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; }
3583 if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; }
3584 rounding_corners_flags_cell &= rounding_corners_flags;
3585 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell);
3586 }
3587 }
3588 }
3589 else
3590 {
3591 draw_list->AddRectFilled(p_min, p_max, col, rounding, rounding_corners_flags);
3592 }
3593 }
3594
3595 //-----------------------------------------------------------------------------
3596 // [SECTION] Decompression code
3597 //-----------------------------------------------------------------------------
3598 // Compressed with stb_compress() then converted to a C array and encoded as base85.
3599 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
3600 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3601 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
3602 //-----------------------------------------------------------------------------
3603
stb_decompress_length(const unsigned char * input)3604 static unsigned int stb_decompress_length(const unsigned char *input)
3605 {
3606 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
3607 }
3608
3609 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
3610 static const unsigned char *stb__barrier_in_b;
3611 static unsigned char *stb__dout;
stb__match(const unsigned char * data,unsigned int length)3612 static void stb__match(const unsigned char *data, unsigned int length)
3613 {
3614 // INVERSE of memmove... write each byte before copying the next...
3615 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3616 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3617 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
3618 while (length--) *stb__dout++ = *data++;
3619 }
3620
stb__lit(const unsigned char * data,unsigned int length)3621 static void stb__lit(const unsigned char *data, unsigned int length)
3622 {
3623 IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
3624 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
3625 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
3626 memcpy(stb__dout, data, length);
3627 stb__dout += length;
3628 }
3629
3630 #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
3631 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
3632 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
3633
stb_decompress_token(const unsigned char * i)3634 static const unsigned char *stb_decompress_token(const unsigned char *i)
3635 {
3636 if (*i >= 0x20) { // use fewer if's for cases that expand small
3637 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
3638 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
3639 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
3640 } else { // more ifs for cases that expand large, since overhead is amortized
3641 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
3642 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
3643 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
3644 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
3645 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
3646 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
3647 }
3648 return i;
3649 }
3650
stb_adler32(unsigned int adler32,unsigned char * buffer,unsigned int buflen)3651 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
3652 {
3653 const unsigned long ADLER_MOD = 65521;
3654 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
3655 unsigned long blocklen = buflen % 5552;
3656
3657 unsigned long i;
3658 while (buflen) {
3659 for (i=0; i + 7 < blocklen; i += 8) {
3660 s1 += buffer[0], s2 += s1;
3661 s1 += buffer[1], s2 += s1;
3662 s1 += buffer[2], s2 += s1;
3663 s1 += buffer[3], s2 += s1;
3664 s1 += buffer[4], s2 += s1;
3665 s1 += buffer[5], s2 += s1;
3666 s1 += buffer[6], s2 += s1;
3667 s1 += buffer[7], s2 += s1;
3668
3669 buffer += 8;
3670 }
3671
3672 for (; i < blocklen; ++i)
3673 s1 += *buffer++, s2 += s1;
3674
3675 s1 %= ADLER_MOD, s2 %= ADLER_MOD;
3676 buflen -= blocklen;
3677 blocklen = 5552;
3678 }
3679 return (unsigned int)(s2 << 16) + (unsigned int)s1;
3680 }
3681
stb_decompress(unsigned char * output,const unsigned char * i,unsigned int)3682 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
3683 {
3684 if (stb__in4(0) != 0x57bC0000) return 0;
3685 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
3686 const unsigned int olen = stb_decompress_length(i);
3687 stb__barrier_in_b = i;
3688 stb__barrier_out_e = output + olen;
3689 stb__barrier_out_b = output;
3690 i += 16;
3691
3692 stb__dout = output;
3693 for (;;) {
3694 const unsigned char *old_i = i;
3695 i = stb_decompress_token(i);
3696 if (i == old_i) {
3697 if (*i == 0x05 && i[1] == 0xfa) {
3698 IM_ASSERT(stb__dout == output + olen);
3699 if (stb__dout != output + olen) return 0;
3700 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
3701 return 0;
3702 return olen;
3703 } else {
3704 IM_ASSERT(0); /* NOTREACHED */
3705 return 0;
3706 }
3707 }
3708 IM_ASSERT(stb__dout <= output + olen);
3709 if (stb__dout > output + olen)
3710 return 0;
3711 }
3712 }
3713
3714 //-----------------------------------------------------------------------------
3715 // [SECTION] Default font data (ProggyClean.ttf)
3716 //-----------------------------------------------------------------------------
3717 // ProggyClean.ttf
3718 // Copyright (c) 2004, 2005 Tristan Grimmer
3719 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
3720 // Download and more information at http://upperbounds.net
3721 //-----------------------------------------------------------------------------
3722 // File: 'ProggyClean.ttf' (41208 bytes)
3723 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
3724 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
3725 //-----------------------------------------------------------------------------
3726 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
3727 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
3728 "2*>]b(MC;$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#"
3729 "`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"
3730 "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"
3731 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
3732 "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cXm#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
3733 "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"
3734 "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."
3735 "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"
3736 "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(,)"
3737 "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#"
3738 "'/###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"
3739 "_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"
3740 "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/"
3741 "/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"
3742 "%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&#"
3743 "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)("
3744 "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"
3745 "o;#2:;%d	v68C5g?ntX0X)pT`;%pB3q7mgGN)3%(P8nTd5L7GeA-GL@+%J3u2:(Yf>et`e;)f#Km8&+DC$I46>#Kr]]u-[=99tts1.qb#q72g1WJO81q+eN'03'eM>&1XxY-caEnO"
3746 "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^-"
3747 "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-"
3748 "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"
3749 "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%"
3750 "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]"
3751 "%(?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"
3752 "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:"
3753 "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("
3754 "$/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<"
3755 "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'?"
3756 "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/;"
3757 ")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"
3758 "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("
3759 "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"
3760 "bIu)'Z,*[>br5fX^:FPAWr-m2KgL<LUN098kTF&#lvo58=/vjDo;.;)Ka*hLR#/k=rKbxuV`>Q_nN6'8uTGT5g)uLv:873UpTLgH+#FgpH'_o1780Ph8KmxQJ8#H72L4@768@Tm&Q"
3761 "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<-"
3762 "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"
3763 "sZ88+dKQ)W6>J%CL<KE>`.d*(B`-n8D9oK<Up]c$X$(,)M8Zt7/[rdkqTgl-0cuGMv'?>-XV1q['-5k'cAZ69e;D_?$ZPP&s^+7])$*$#@QYi9,5P	r+$%CE=68>K8r0=dSC%%(@p7"
3764 ".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@@"
3765 "$&)WHtPm*5_rO0&e%K&#-30j(E4#'Zb.o/(Tpm$>K'f@[PvFl,hfINTNU6u'0pao7%XUp9]5.>%h`8_=VYbxuel.NTSsJfLacFu3B'lQSu/m6-Oqem8T+oE--$0a/k]uj9EwsG>%veR*"
3766 "hv^BFpQj:K'#SJ,sB-'#](j.Lg92rTw-*n%@/;39rrJF,l#qV%OrtBeC6/,;qB3ebNW[?,Hqj2L.1NP&GjUR=1D8QaS3Up&@*9wP?+lo7b?@%'k4`p0Z$22%K3+iCZj?XJN4Nm&+YF]u"
3767 "@-W$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&#"
3768 "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#"
3769 "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"
3770 "d=j.LQf./Ll33+(;q3L-w=8dX$#WF&uIJ@-bfI>%:_i2B5CsR8&9Z&#=mPEnm0f`<&c)QL5uJ#%u%lJj+D-r;BoFDoS97h5g)E#o:&S4weDF,9^Hoe`h*L+_a*NrLW-1pG_&2UdB8"
3771 "6e%B/:=>)N4xeW.*wft-;$'58-ESqr<b?UI(_%@[P46>#U`'6AQ]m&6/`Z>#S?YY#Vc;r7U2&326d=w&H####?TZ`*4?&.MK?LP8Vxg>$[QXc%QJv92.(Db*B)gb*BM9dM*hJMAo*c&#"
3772 "b0v=Pjer]$gG&JXDf->'StvU7505l9$AFvgYRI^&<^b68?j#q9QX4SM'RO#&sL1IM.rJfLUAj221]d##DW=m83u5;'bYx,*Sl0hL(W;;$doB&O/TQ:(Z^xBdLjL<Lni;''X.`$#8+1GD"
3773 ":k$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+"
3774 "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*"
3775 "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
3776 ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
3777 "7aQC[K8d-(v6GI$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"
3778 "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"
3779 "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
3780 ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
3781 "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
3782 "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
3783 "^V'9;jY@;)br#q^YQpx:X#Te$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:"
3784 "+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%"
3785 "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
3786 "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
3787 "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
3788 "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
3789 "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
3790 "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
3791 "+fsd;l#SafT/f*W]0=O'$(Tb<[)*@e775R-:Yob%g*>l*:xP?Yb.5)%w_I?7uk5JC+FS(m#i'k.'a0i)9<7b'fs'59hq$*5Uhv##pi^8+hIEBF`nvo`;'l0.^S1<-wUK2/Coh58KKhLj"
3792 "M=SO*rfO`+qC`W-On.=AJ56>>i2@2LH6A:&5q`?9I3@@'04&p2/LVa*T-4<-i3;M9UvZd+N7>b*eIwg:CC)c<>nO&#<IGe;__.thjZl<%w(Wk2xmp4Q@I#I9,DF]u7-P=.-_:YJ]aS@V"
3793 "?6*C()dOp7:WL,b&3Rg/.cmM9&r^>$(>.Z-I&J(Q0Hd5Q%7Co-b`-c<N(6r@ip+AurK<m86QIth*#v;-OBqi+L7wDE-Ir8K['m+DDSLwK&/.?-V%U_%3:qKNu$_b*B-kp7NaD'QdWQPK"
3794 "Yq[@>P)hI;*_F]u`Rb[.j8_Q/<&>uu+VsH$sM9TA%?)(vmJ80),P7E>)tjD%2L=-t#fK[%`v=Q8<FfNkgg^oIbah*#8/Qt$F&:K*-(N/'+1vMB,u()-a.VUU*#[e%gAAO(S>WlA2);Sa"
3795 ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
3796 "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
3797 "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
3798 "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
3799 "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
3800 "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
3801 "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
3802 "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
3803 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
3804 ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
3805 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
3806 "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
3807 "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
3808 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
3809 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
3810 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
3811 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
3812 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
3813
GetDefaultCompressedFontDataTTFBase85()3814 static const char* GetDefaultCompressedFontDataTTFBase85()
3815 {
3816 return proggy_clean_ttf_compressed_data_base85;
3817 }
3818
3819 #endif // #ifndef IMGUI_DISABLE
3820