1// dear imgui, v1.68 WIP 2// (drawing and font code) 3 4/* 5 6Index of this file: 7 8// [SECTION] STB libraries implementation 9// [SECTION] Style functions 10// [SECTION] ImDrawList 11// [SECTION] ImDrawData 12// [SECTION] Helpers ShadeVertsXXX functions 13// [SECTION] ImFontConfig 14// [SECTION] ImFontAtlas 15// [SECTION] ImFontAtlas glyph ranges helpers 16// [SECTION] ImFontGlyphRangesBuilder 17// [SECTION] ImFont 18// [SECTION] Internal Render Helpers 19// [SECTION] Decompression code 20// [SECTION] Default font data (ProggyClean.ttf) 21 22*/ 23 24#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) 25#define _CRT_SECURE_NO_WARNINGS 26#endif 27 28#include "imgui.h" 29#ifndef IMGUI_DEFINE_MATH_OPERATORS 30#define IMGUI_DEFINE_MATH_OPERATORS 31#endif 32#include "imgui_internal.h" 33 34#include <stdio.h> // vsnprintf, sscanf, printf 35#if !defined(alloca) 36#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__) 37#include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here) 38#elif defined(_WIN32) 39#include <malloc.h> // alloca 40#if !defined(alloca) 41#define alloca _alloca // for clang with MS Codegen 42#endif 43#else 44#include <stdlib.h> // alloca 45#endif 46#endif 47 48// Visual Studio warnings 49#ifdef _MSC_VER 50#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff) 51#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen 52#endif 53 54// Clang/GCC warnings with -Weverything 55#ifdef __clang__ 56#pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse. 57#pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok. 58#pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it. 59#pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness // 60#if __has_warning("-Wzero-as-null-pointer-constant") 61#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning : zero as null pointer constant // some standard header variations use #define NULL 0 62#endif 63#if __has_warning("-Wcomma") 64#pragma clang diagnostic ignored "-Wcomma" // warning : possible misuse of comma operator here // 65#endif 66#if __has_warning("-Wreserved-id-macro") 67#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier // 68#endif 69#if __has_warning("-Wdouble-promotion") 70#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. 71#endif 72#elif defined(__GNUC__) 73#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used 74#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function 75#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value 76#if __GNUC__ >= 8 77#pragma GCC diagnostic ignored "-Wclass-memaccess" // warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead 78#endif 79#endif 80 81//------------------------------------------------------------------------- 82// [SECTION] STB libraries implementation 83//------------------------------------------------------------------------- 84 85// Compile time options: 86//#define IMGUI_STB_NAMESPACE ImGuiStb 87//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h" 88//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h" 89//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 90//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 91 92#ifdef IMGUI_STB_NAMESPACE 93namespace IMGUI_STB_NAMESPACE 94{ 95#endif 96 97#ifdef _MSC_VER 98#pragma warning (push) 99#pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration 100#endif 101 102#ifdef __clang__ 103#pragma clang diagnostic push 104#pragma clang diagnostic ignored "-Wunused-function" 105#pragma clang diagnostic ignored "-Wmissing-prototypes" 106#pragma clang diagnostic ignored "-Wimplicit-fallthrough" 107#pragma clang diagnostic ignored "-Wcast-qual" // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier // 108#endif 109 110#ifdef __GNUC__ 111#pragma GCC diagnostic push 112#pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits] 113#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers 114#endif 115 116#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 117#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 118#define STBRP_STATIC 119#define STBRP_ASSERT(x) IM_ASSERT(x) 120#define STBRP_SORT ImQsort 121#define STB_RECT_PACK_IMPLEMENTATION 122#endif 123#ifdef IMGUI_STB_RECT_PACK_FILENAME 124#include IMGUI_STB_RECT_PACK_FILENAME 125#else 126#include "imstb_rectpack.h" 127#endif 128#endif 129 130#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 131#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 132#define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x)) 133#define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x)) 134#define STBTT_assert(x) IM_ASSERT(x) 135#define STBTT_fmod(x,y) ImFmod(x,y) 136#define STBTT_sqrt(x) ImSqrt(x) 137#define STBTT_pow(x,y) ImPow(x,y) 138#define STBTT_fabs(x) ImFabs(x) 139#define STBTT_ifloor(x) ((int)ImFloorStd(x)) 140#define STBTT_iceil(x) ((int)ImCeil(x)) 141#define STBTT_STATIC 142#define STB_TRUETYPE_IMPLEMENTATION 143#else 144#define STBTT_DEF extern 145#endif 146#ifdef IMGUI_STB_TRUETYPE_FILENAME 147#include IMGUI_STB_TRUETYPE_FILENAME 148#else 149#include "imstb_truetype.h" 150#endif 151#endif 152 153#ifdef __GNUC__ 154#pragma GCC diagnostic pop 155#endif 156 157#ifdef __clang__ 158#pragma clang diagnostic pop 159#endif 160 161#ifdef _MSC_VER 162#pragma warning (pop) 163#endif 164 165#ifdef IMGUI_STB_NAMESPACE 166} // namespace ImGuiStb 167using namespace IMGUI_STB_NAMESPACE; 168#endif 169 170//----------------------------------------------------------------------------- 171// [SECTION] Style functions 172//----------------------------------------------------------------------------- 173 174void ImGui::StyleColorsDark(ImGuiStyle* dst) 175{ 176 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 177 ImVec4* colors = style->Colors; 178 179 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 180 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f); 181 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f); 182 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 183 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f); 184 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f); 185 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 186 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f); 187 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 188 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 189 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f); 190 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f); 191 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f); 192 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f); 193 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f); 194 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f); 195 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f); 196 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f); 197 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 198 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f); 199 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 200 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 201 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 202 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 203 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 204 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 205 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 206 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border]; 207 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f); 208 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f); 209 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f); 210 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 211 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 212 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 213 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 214 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 215 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 216 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 217 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f); 218 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 219 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 220 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 221 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 222 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 223 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 224 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 225 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 226 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f); 227} 228 229void ImGui::StyleColorsClassic(ImGuiStyle* dst) 230{ 231 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 232 ImVec4* colors = style->Colors; 233 234 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f); 235 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 236 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f); 237 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 238 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f); 239 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f); 240 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 241 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f); 242 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f); 243 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f); 244 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f); 245 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f); 246 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f); 247 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f); 248 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f); 249 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f); 250 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f); 251 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 252 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f); 253 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f); 254 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 255 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f); 256 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f); 257 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f); 258 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f); 259 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f); 260 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f); 261 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f); 262 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f); 263 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f); 264 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f); 265 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f); 266 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f); 267 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 268 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 269 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 270 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 271 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 272 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 273 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 274 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 275 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 276 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f); 277 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 278 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 279 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 280 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 281 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 282} 283 284// Those light colors are better suited with a thicker font than the default one + FrameBorder 285void ImGui::StyleColorsLight(ImGuiStyle* dst) 286{ 287 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 288 ImVec4* colors = style->Colors; 289 290 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f); 291 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 292 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f); 293 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 294 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f); 295 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f); 296 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 297 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 298 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 299 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 300 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f); 301 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f); 302 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f); 303 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f); 304 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f); 305 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f); 306 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f); 307 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f); 308 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 309 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f); 310 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f); 311 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 312 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 313 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 314 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 315 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 316 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 317 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f); 318 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f); 319 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f); 320 colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f); 321 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 322 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 323 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f); 324 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 325 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 326 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 327 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 328 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f); 329 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 330 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 331 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f); 332 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 333 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 334 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 335 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f); 336 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f); 337 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 338} 339 340//----------------------------------------------------------------------------- 341// ImDrawList 342//----------------------------------------------------------------------------- 343 344ImDrawListSharedData::ImDrawListSharedData() 345{ 346 Font = NULL; 347 FontSize = 0.0f; 348 CurveTessellationTol = 0.0f; 349 ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f); 350 351 // Const data 352 for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++) 353 { 354 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12); 355 CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a)); 356 } 357} 358 359void ImDrawList::Clear() 360{ 361 CmdBuffer.resize(0); 362 IdxBuffer.resize(0); 363 VtxBuffer.resize(0); 364 Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill; 365 _VtxCurrentIdx = 0; 366 _VtxWritePtr = NULL; 367 _IdxWritePtr = NULL; 368 _ClipRectStack.resize(0); 369 _TextureIdStack.resize(0); 370 _Path.resize(0); 371 _ChannelsCurrent = 0; 372 _ChannelsCount = 1; 373 // NB: Do not clear channels so our allocations are re-used after the first frame. 374} 375 376void ImDrawList::ClearFreeMemory() 377{ 378 CmdBuffer.clear(); 379 IdxBuffer.clear(); 380 VtxBuffer.clear(); 381 _VtxCurrentIdx = 0; 382 _VtxWritePtr = NULL; 383 _IdxWritePtr = NULL; 384 _ClipRectStack.clear(); 385 _TextureIdStack.clear(); 386 _Path.clear(); 387 _ChannelsCurrent = 0; 388 _ChannelsCount = 1; 389 for (int i = 0; i < _Channels.Size; i++) 390 { 391 if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again 392 _Channels[i].CmdBuffer.clear(); 393 _Channels[i].IdxBuffer.clear(); 394 } 395 _Channels.clear(); 396} 397 398ImDrawList* ImDrawList::CloneOutput() const 399{ 400 ImDrawList* dst = IM_NEW(ImDrawList(NULL)); 401 dst->CmdBuffer = CmdBuffer; 402 dst->IdxBuffer = IdxBuffer; 403 dst->VtxBuffer = VtxBuffer; 404 dst->Flags = Flags; 405 return dst; 406} 407 408// Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds 409#define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : _Data->ClipRectFullscreen) 410#define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL) 411 412void ImDrawList::AddDrawCmd() 413{ 414 ImDrawCmd draw_cmd; 415 draw_cmd.ClipRect = GetCurrentClipRect(); 416 draw_cmd.TextureId = GetCurrentTextureId(); 417 418 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w); 419 CmdBuffer.push_back(draw_cmd); 420} 421 422void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data) 423{ 424 ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; 425 if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL) 426 { 427 AddDrawCmd(); 428 current_cmd = &CmdBuffer.back(); 429 } 430 current_cmd->UserCallback = callback; 431 current_cmd->UserCallbackData = callback_data; 432 433 AddDrawCmd(); // Force a new command after us (see comment below) 434} 435 436// 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. 437// 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. 438void ImDrawList::UpdateClipRect() 439{ 440 // If current command is used with different settings we need to add a new command 441 const ImVec4 curr_clip_rect = GetCurrentClipRect(); 442 ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL; 443 if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL) 444 { 445 AddDrawCmd(); 446 return; 447 } 448 449 // Try to merge with previous command if it matches, else use current command 450 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; 451 if (curr_cmd->ElemCount == 0 && prev_cmd && memcmp(&prev_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) == 0 && prev_cmd->TextureId == GetCurrentTextureId() && prev_cmd->UserCallback == NULL) 452 CmdBuffer.pop_back(); 453 else 454 curr_cmd->ClipRect = curr_clip_rect; 455} 456 457void ImDrawList::UpdateTextureID() 458{ 459 // If current command is used with different settings we need to add a new command 460 const ImTextureID curr_texture_id = GetCurrentTextureId(); 461 ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL; 462 if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL) 463 { 464 AddDrawCmd(); 465 return; 466 } 467 468 // Try to merge with previous command if it matches, else use current command 469 ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL; 470 if (curr_cmd->ElemCount == 0 && prev_cmd && prev_cmd->TextureId == curr_texture_id && memcmp(&prev_cmd->ClipRect, &GetCurrentClipRect(), sizeof(ImVec4)) == 0 && prev_cmd->UserCallback == NULL) 471 CmdBuffer.pop_back(); 472 else 473 curr_cmd->TextureId = curr_texture_id; 474} 475 476#undef GetCurrentClipRect 477#undef GetCurrentTextureId 478 479// 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) 480void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect) 481{ 482 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y); 483 if (intersect_with_current_clip_rect && _ClipRectStack.Size) 484 { 485 ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1]; 486 if (cr.x < current.x) cr.x = current.x; 487 if (cr.y < current.y) cr.y = current.y; 488 if (cr.z > current.z) cr.z = current.z; 489 if (cr.w > current.w) cr.w = current.w; 490 } 491 cr.z = ImMax(cr.x, cr.z); 492 cr.w = ImMax(cr.y, cr.w); 493 494 _ClipRectStack.push_back(cr); 495 UpdateClipRect(); 496} 497 498void ImDrawList::PushClipRectFullScreen() 499{ 500 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w)); 501} 502 503void ImDrawList::PopClipRect() 504{ 505 IM_ASSERT(_ClipRectStack.Size > 0); 506 _ClipRectStack.pop_back(); 507 UpdateClipRect(); 508} 509 510void ImDrawList::PushTextureID(ImTextureID texture_id) 511{ 512 _TextureIdStack.push_back(texture_id); 513 UpdateTextureID(); 514} 515 516void ImDrawList::PopTextureID() 517{ 518 IM_ASSERT(_TextureIdStack.Size > 0); 519 _TextureIdStack.pop_back(); 520 UpdateTextureID(); 521} 522 523void ImDrawList::ChannelsSplit(int channels_count) 524{ 525 IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1); 526 int old_channels_count = _Channels.Size; 527 if (old_channels_count < channels_count) 528 _Channels.resize(channels_count); 529 _ChannelsCount = channels_count; 530 531 // _Channels[] (24/32 bytes each) hold storage that we'll swap with this->_CmdBuffer/_IdxBuffer 532 // 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. 533 // When we switch to the next channel, we'll copy _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _CmdBuffer/_IdxBuffer 534 memset(&_Channels[0], 0, sizeof(ImDrawChannel)); 535 for (int i = 1; i < channels_count; i++) 536 { 537 if (i >= old_channels_count) 538 { 539 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel(); 540 } 541 else 542 { 543 _Channels[i].CmdBuffer.resize(0); 544 _Channels[i].IdxBuffer.resize(0); 545 } 546 if (_Channels[i].CmdBuffer.Size == 0) 547 { 548 ImDrawCmd draw_cmd; 549 draw_cmd.ClipRect = _ClipRectStack.back(); 550 draw_cmd.TextureId = _TextureIdStack.back(); 551 _Channels[i].CmdBuffer.push_back(draw_cmd); 552 } 553 } 554} 555 556void ImDrawList::ChannelsMerge() 557{ 558 // 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. 559 if (_ChannelsCount <= 1) 560 return; 561 562 ChannelsSetCurrent(0); 563 if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0) 564 CmdBuffer.pop_back(); 565 566 int new_cmd_buffer_count = 0, new_idx_buffer_count = 0; 567 for (int i = 1; i < _ChannelsCount; i++) 568 { 569 ImDrawChannel& ch = _Channels[i]; 570 if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0) 571 ch.CmdBuffer.pop_back(); 572 new_cmd_buffer_count += ch.CmdBuffer.Size; 573 new_idx_buffer_count += ch.IdxBuffer.Size; 574 } 575 CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count); 576 IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count); 577 578 ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count; 579 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count; 580 for (int i = 1; i < _ChannelsCount; i++) 581 { 582 ImDrawChannel& ch = _Channels[i]; 583 if (int sz = ch.CmdBuffer.Size) { memcpy(cmd_write, ch.CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; } 584 if (int sz = ch.IdxBuffer.Size) { memcpy(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; } 585 } 586 UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call. 587 _ChannelsCount = 1; 588} 589 590void ImDrawList::ChannelsSetCurrent(int idx) 591{ 592 IM_ASSERT(idx < _ChannelsCount); 593 if (_ChannelsCurrent == idx) return; 594 memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times 595 memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer)); 596 _ChannelsCurrent = idx; 597 memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer)); 598 memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer)); 599 _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size; 600} 601 602// NB: this can be called with negative count for removing primitives (as long as the result does not underflow) 603void ImDrawList::PrimReserve(int idx_count, int vtx_count) 604{ 605 ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1]; 606 draw_cmd.ElemCount += idx_count; 607 608 int vtx_buffer_old_size = VtxBuffer.Size; 609 VtxBuffer.resize(vtx_buffer_old_size + vtx_count); 610 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size; 611 612 int idx_buffer_old_size = IdxBuffer.Size; 613 IdxBuffer.resize(idx_buffer_old_size + idx_count); 614 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size; 615} 616 617// Fully unrolled with inline call to keep our debug builds decently fast. 618void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col) 619{ 620 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel); 621 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 622 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 623 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 624 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 625 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 626 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 627 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 628 _VtxWritePtr += 4; 629 _VtxCurrentIdx += 4; 630 _IdxWritePtr += 6; 631} 632 633void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col) 634{ 635 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); 636 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 637 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 638 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 639 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 640 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 641 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 642 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 643 _VtxWritePtr += 4; 644 _VtxCurrentIdx += 4; 645 _IdxWritePtr += 6; 646} 647 648void 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) 649{ 650 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 651 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 652 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 653 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 654 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 655 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 656 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 657 _VtxWritePtr += 4; 658 _VtxCurrentIdx += 4; 659 _IdxWritePtr += 6; 660} 661 662// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superflous function calls to optimize debug/non-inlined builds. 663// Those macros expects l-values. 664#define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = 1.0f / ImSqrt(d2); VX *= inv_len; VY *= inv_len; } } 665#define IM_NORMALIZE2F_OVER_EPSILON_CLAMP(VX,VY,EPS,INVLENMAX) { float d2 = VX*VX + VY*VY; if (d2 > EPS) { float inv_len = 1.0f / ImSqrt(d2); if (inv_len > INVLENMAX) inv_len = INVLENMAX; VX *= inv_len; VY *= inv_len; } } 666 667// TODO: Thickness anti-aliased lines cap are missing their AA fringe. 668// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds. 669void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness) 670{ 671 if (points_count < 2) 672 return; 673 674 const ImVec2 uv = _Data->TexUvWhitePixel; 675 676 int count = points_count; 677 if (!closed) 678 count = points_count-1; 679 680 const bool thick_line = thickness > 1.0f; 681 if (Flags & ImDrawListFlags_AntiAliasedLines) 682 { 683 // Anti-aliased stroke 684 const float AA_SIZE = 1.0f; 685 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 686 687 const int idx_count = thick_line ? count*18 : count*12; 688 const int vtx_count = thick_line ? points_count*4 : points_count*3; 689 PrimReserve(idx_count, vtx_count); 690 691 // Temporary buffer 692 ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2)); //-V630 693 ImVec2* temp_points = temp_normals + points_count; 694 695 for (int i1 = 0; i1 < count; i1++) 696 { 697 const int i2 = (i1+1) == points_count ? 0 : i1+1; 698 float dx = points[i2].x - points[i1].x; 699 float dy = points[i2].y - points[i1].y; 700 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 701 temp_normals[i1].x = dy; 702 temp_normals[i1].y = -dx; 703 } 704 if (!closed) 705 temp_normals[points_count-1] = temp_normals[points_count-2]; 706 707 if (!thick_line) 708 { 709 if (!closed) 710 { 711 temp_points[0] = points[0] + temp_normals[0] * AA_SIZE; 712 temp_points[1] = points[0] - temp_normals[0] * AA_SIZE; 713 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE; 714 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE; 715 } 716 717 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 718 unsigned int idx1 = _VtxCurrentIdx; 719 for (int i1 = 0; i1 < count; i1++) 720 { 721 const int i2 = (i1+1) == points_count ? 0 : i1+1; 722 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3; 723 724 // Average normals 725 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 726 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 727 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f) 728 dm_x *= AA_SIZE; 729 dm_y *= AA_SIZE; 730 731 // Add temporary vertexes 732 ImVec2* out_vtx = &temp_points[i2*2]; 733 out_vtx[0].x = points[i2].x + dm_x; 734 out_vtx[0].y = points[i2].y + dm_y; 735 out_vtx[1].x = points[i2].x - dm_x; 736 out_vtx[1].y = points[i2].y - dm_y; 737 738 // Add indexes 739 _IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); 740 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0); 741 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); 742 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1); 743 _IdxWritePtr += 12; 744 745 idx1 = idx2; 746 } 747 748 // Add vertexes 749 for (int i = 0; i < points_count; i++) 750 { 751 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 752 _VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; 753 _VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans; 754 _VtxWritePtr += 3; 755 } 756 } 757 else 758 { 759 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f; 760 if (!closed) 761 { 762 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE); 763 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness); 764 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness); 765 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE); 766 temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); 767 temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness); 768 temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness); 769 temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE); 770 } 771 772 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 773 unsigned int idx1 = _VtxCurrentIdx; 774 for (int i1 = 0; i1 < count; i1++) 775 { 776 const int i2 = (i1+1) == points_count ? 0 : i1+1; 777 unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4; 778 779 // Average normals 780 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 781 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 782 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f); 783 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE); 784 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE); 785 float dm_in_x = dm_x * half_inner_thickness; 786 float dm_in_y = dm_y * half_inner_thickness; 787 788 // Add temporary vertexes 789 ImVec2* out_vtx = &temp_points[i2*4]; 790 out_vtx[0].x = points[i2].x + dm_out_x; 791 out_vtx[0].y = points[i2].y + dm_out_y; 792 out_vtx[1].x = points[i2].x + dm_in_x; 793 out_vtx[1].y = points[i2].y + dm_in_y; 794 out_vtx[2].x = points[i2].x - dm_in_x; 795 out_vtx[2].y = points[i2].y - dm_in_y; 796 out_vtx[3].x = points[i2].x - dm_out_x; 797 out_vtx[3].y = points[i2].y - dm_out_y; 798 799 // Add indexes 800 _IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2); 801 _IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1); 802 _IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0); 803 _IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1); 804 _IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3); 805 _IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2); 806 _IdxWritePtr += 18; 807 808 idx1 = idx2; 809 } 810 811 // Add vertexes 812 for (int i = 0; i < points_count; i++) 813 { 814 _VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans; 815 _VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 816 _VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 817 _VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans; 818 _VtxWritePtr += 4; 819 } 820 } 821 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 822 } 823 else 824 { 825 // Non Anti-aliased Stroke 826 const int idx_count = count*6; 827 const int vtx_count = count*4; // FIXME-OPT: Not sharing edges 828 PrimReserve(idx_count, vtx_count); 829 830 for (int i1 = 0; i1 < count; i1++) 831 { 832 const int i2 = (i1+1) == points_count ? 0 : i1+1; 833 const ImVec2& p1 = points[i1]; 834 const ImVec2& p2 = points[i2]; 835 836 float dx = p2.x - p1.x; 837 float dy = p2.y - p1.y; 838 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 839 dx *= (thickness * 0.5f); 840 dy *= (thickness * 0.5f); 841 842 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 843 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 844 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 845 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 846 _VtxWritePtr += 4; 847 848 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2); 849 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3); 850 _IdxWritePtr += 6; 851 _VtxCurrentIdx += 4; 852 } 853 } 854} 855 856// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds. 857void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col) 858{ 859 if (points_count < 3) 860 return; 861 862 const ImVec2 uv = _Data->TexUvWhitePixel; 863 864 if (Flags & ImDrawListFlags_AntiAliasedFill) 865 { 866 // Anti-aliased Fill 867 const float AA_SIZE = 1.0f; 868 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 869 const int idx_count = (points_count-2)*3 + points_count*6; 870 const int vtx_count = (points_count*2); 871 PrimReserve(idx_count, vtx_count); 872 873 // Add indexes for fill 874 unsigned int vtx_inner_idx = _VtxCurrentIdx; 875 unsigned int vtx_outer_idx = _VtxCurrentIdx+1; 876 for (int i = 2; i < points_count; i++) 877 { 878 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1)); 879 _IdxWritePtr += 3; 880 } 881 882 // Compute normals 883 ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630 884 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) 885 { 886 const ImVec2& p0 = points[i0]; 887 const ImVec2& p1 = points[i1]; 888 float dx = p1.x - p0.x; 889 float dy = p1.y - p0.y; 890 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 891 temp_normals[i0].x = dy; 892 temp_normals[i0].y = -dx; 893 } 894 895 for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) 896 { 897 // Average normals 898 const ImVec2& n0 = temp_normals[i0]; 899 const ImVec2& n1 = temp_normals[i1]; 900 float dm_x = (n0.x + n1.x) * 0.5f; 901 float dm_y = (n0.y + n1.y) * 0.5f; 902 IM_NORMALIZE2F_OVER_EPSILON_CLAMP(dm_x, dm_y, 0.000001f, 100.0f); 903 dm_x *= AA_SIZE * 0.5f; 904 dm_y *= AA_SIZE * 0.5f; 905 906 // Add vertices 907 _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 908 _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 909 _VtxWritePtr += 2; 910 911 // Add indexes for fringes 912 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); 913 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); 914 _IdxWritePtr += 6; 915 } 916 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 917 } 918 else 919 { 920 // Non Anti-aliased Fill 921 const int idx_count = (points_count-2)*3; 922 const int vtx_count = points_count; 923 PrimReserve(idx_count, vtx_count); 924 for (int i = 0; i < vtx_count; i++) 925 { 926 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 927 _VtxWritePtr++; 928 } 929 for (int i = 2; i < points_count; i++) 930 { 931 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i); 932 _IdxWritePtr += 3; 933 } 934 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 935 } 936} 937 938void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12) 939{ 940 if (radius == 0.0f || a_min_of_12 > a_max_of_12) 941 { 942 _Path.push_back(centre); 943 return; 944 } 945 _Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1)); 946 for (int a = a_min_of_12; a <= a_max_of_12; a++) 947 { 948 const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)]; 949 _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius)); 950 } 951} 952 953void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments) 954{ 955 if (radius == 0.0f) 956 { 957 _Path.push_back(centre); 958 return; 959 } 960 961 // Note that we are adding a point at both a_min and a_max. 962 // If you are trying to draw a full closed circle you don't want the overlapping points! 963 _Path.reserve(_Path.Size + (num_segments + 1)); 964 for (int i = 0; i <= num_segments; i++) 965 { 966 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min); 967 _Path.push_back(ImVec2(centre.x + ImCos(a) * radius, centre.y + ImSin(a) * radius)); 968 } 969} 970 971static 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) 972{ 973 float dx = x4 - x1; 974 float dy = y4 - y1; 975 float d2 = ((x2 - x4) * dy - (y2 - y4) * dx); 976 float d3 = ((x3 - x4) * dy - (y3 - y4) * dx); 977 d2 = (d2 >= 0) ? d2 : -d2; 978 d3 = (d3 >= 0) ? d3 : -d3; 979 if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy)) 980 { 981 path->push_back(ImVec2(x4, y4)); 982 } 983 else if (level < 10) 984 { 985 float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f; 986 float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f; 987 float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f; 988 float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f; 989 float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f; 990 float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f; 991 992 PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1); 993 PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1); 994 } 995} 996 997void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments) 998{ 999 ImVec2 p1 = _Path.back(); 1000 if (num_segments == 0) 1001 { 1002 // Auto-tessellated 1003 PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); 1004 } 1005 else 1006 { 1007 float t_step = 1.0f / (float)num_segments; 1008 for (int i_step = 1; i_step <= num_segments; i_step++) 1009 { 1010 float t = t_step * i_step; 1011 float u = 1.0f - t; 1012 float w1 = u*u*u; 1013 float w2 = 3*u*u*t; 1014 float w3 = 3*u*t*t; 1015 float w4 = t*t*t; 1016 _Path.push_back(ImVec2(w1*p1.x + w2*p2.x + w3*p3.x + w4*p4.x, w1*p1.y + w2*p2.y + w3*p3.y + w4*p4.y)); 1017 } 1018 } 1019} 1020 1021void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners) 1022{ 1023 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); 1024 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); 1025 1026 if (rounding <= 0.0f || rounding_corners == 0) 1027 { 1028 PathLineTo(a); 1029 PathLineTo(ImVec2(b.x, a.y)); 1030 PathLineTo(b); 1031 PathLineTo(ImVec2(a.x, b.y)); 1032 } 1033 else 1034 { 1035 const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f; 1036 const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f; 1037 const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f; 1038 const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f; 1039 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9); 1040 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12); 1041 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3); 1042 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6); 1043 } 1044} 1045 1046void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness) 1047{ 1048 if ((col & IM_COL32_A_MASK) == 0) 1049 return; 1050 PathLineTo(a + ImVec2(0.5f,0.5f)); 1051 PathLineTo(b + ImVec2(0.5f,0.5f)); 1052 PathStroke(col, false, thickness); 1053} 1054 1055// a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly. 1056void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness) 1057{ 1058 if ((col & IM_COL32_A_MASK) == 0) 1059 return; 1060 if (Flags & ImDrawListFlags_AntiAliasedLines) 1061 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags); 1062 else 1063 PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.49f,0.49f), rounding, rounding_corners_flags); // Better looking lower-right corner and rounded non-AA shapes. 1064 PathStroke(col, true, thickness); 1065} 1066 1067void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags) 1068{ 1069 if ((col & IM_COL32_A_MASK) == 0) 1070 return; 1071 if (rounding > 0.0f) 1072 { 1073 PathRect(a, b, rounding, rounding_corners_flags); 1074 PathFillConvex(col); 1075 } 1076 else 1077 { 1078 PrimReserve(6, 4); 1079 PrimRect(a, b, col); 1080 } 1081} 1082 1083void ImDrawList::AddRectFilledMultiColor(const ImVec2& a, const ImVec2& c, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left) 1084{ 1085 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0) 1086 return; 1087 1088 const ImVec2 uv = _Data->TexUvWhitePixel; 1089 PrimReserve(6, 4); 1090 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); 1091 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3)); 1092 PrimWriteVtx(a, uv, col_upr_left); 1093 PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right); 1094 PrimWriteVtx(c, uv, col_bot_right); 1095 PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left); 1096} 1097 1098void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness) 1099{ 1100 if ((col & IM_COL32_A_MASK) == 0) 1101 return; 1102 1103 PathLineTo(a); 1104 PathLineTo(b); 1105 PathLineTo(c); 1106 PathLineTo(d); 1107 PathStroke(col, true, thickness); 1108} 1109 1110void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col) 1111{ 1112 if ((col & IM_COL32_A_MASK) == 0) 1113 return; 1114 1115 PathLineTo(a); 1116 PathLineTo(b); 1117 PathLineTo(c); 1118 PathLineTo(d); 1119 PathFillConvex(col); 1120} 1121 1122void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness) 1123{ 1124 if ((col & IM_COL32_A_MASK) == 0) 1125 return; 1126 1127 PathLineTo(a); 1128 PathLineTo(b); 1129 PathLineTo(c); 1130 PathStroke(col, true, thickness); 1131} 1132 1133void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col) 1134{ 1135 if ((col & IM_COL32_A_MASK) == 0) 1136 return; 1137 1138 PathLineTo(a); 1139 PathLineTo(b); 1140 PathLineTo(c); 1141 PathFillConvex(col); 1142} 1143 1144void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness) 1145{ 1146 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1147 return; 1148 1149 // Because we are filling a closed shape we remove 1 from the count of segments/points 1150 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 1151 PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments - 1); 1152 PathStroke(col, true, thickness); 1153} 1154 1155void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments) 1156{ 1157 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1158 return; 1159 1160 // Because we are filling a closed shape we remove 1 from the count of segments/points 1161 const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 1162 PathArcTo(centre, radius, 0.0f, a_max, num_segments - 1); 1163 PathFillConvex(col); 1164} 1165 1166void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments) 1167{ 1168 if ((col & IM_COL32_A_MASK) == 0) 1169 return; 1170 1171 PathLineTo(pos0); 1172 PathBezierCurveTo(cp0, cp1, pos1, num_segments); 1173 PathStroke(col, false, thickness); 1174} 1175 1176void 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) 1177{ 1178 if ((col & IM_COL32_A_MASK) == 0) 1179 return; 1180 1181 if (text_end == NULL) 1182 text_end = text_begin + strlen(text_begin); 1183 if (text_begin == text_end) 1184 return; 1185 1186 // Pull default font/size from the shared ImDrawListSharedData instance 1187 if (font == NULL) 1188 font = _Data->Font; 1189 if (font_size == 0.0f) 1190 font_size = _Data->FontSize; 1191 1192 IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font. 1193 1194 ImVec4 clip_rect = _ClipRectStack.back(); 1195 if (cpu_fine_clip_rect) 1196 { 1197 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x); 1198 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y); 1199 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z); 1200 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w); 1201 } 1202 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL); 1203} 1204 1205void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end) 1206{ 1207 AddText(NULL, 0.0f, pos, col, text_begin, text_end); 1208} 1209 1210void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col) 1211{ 1212 if ((col & IM_COL32_A_MASK) == 0) 1213 return; 1214 1215 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); 1216 if (push_texture_id) 1217 PushTextureID(user_texture_id); 1218 1219 PrimReserve(6, 4); 1220 PrimRectUV(a, b, uv_a, uv_b, col); 1221 1222 if (push_texture_id) 1223 PopTextureID(); 1224} 1225 1226void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col) 1227{ 1228 if ((col & IM_COL32_A_MASK) == 0) 1229 return; 1230 1231 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); 1232 if (push_texture_id) 1233 PushTextureID(user_texture_id); 1234 1235 PrimReserve(6, 4); 1236 PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col); 1237 1238 if (push_texture_id) 1239 PopTextureID(); 1240} 1241 1242void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners) 1243{ 1244 if ((col & IM_COL32_A_MASK) == 0) 1245 return; 1246 1247 if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0) 1248 { 1249 AddImage(user_texture_id, a, b, uv_a, uv_b, col); 1250 return; 1251 } 1252 1253 const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back(); 1254 if (push_texture_id) 1255 PushTextureID(user_texture_id); 1256 1257 int vert_start_idx = VtxBuffer.Size; 1258 PathRect(a, b, rounding, rounding_corners); 1259 PathFillConvex(col); 1260 int vert_end_idx = VtxBuffer.Size; 1261 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, a, b, uv_a, uv_b, true); 1262 1263 if (push_texture_id) 1264 PopTextureID(); 1265} 1266 1267//----------------------------------------------------------------------------- 1268// [SECTION] ImDrawData 1269//----------------------------------------------------------------------------- 1270 1271// 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! 1272void ImDrawData::DeIndexAllBuffers() 1273{ 1274 ImVector<ImDrawVert> new_vtx_buffer; 1275 TotalVtxCount = TotalIdxCount = 0; 1276 for (int i = 0; i < CmdListsCount; i++) 1277 { 1278 ImDrawList* cmd_list = CmdLists[i]; 1279 if (cmd_list->IdxBuffer.empty()) 1280 continue; 1281 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size); 1282 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++) 1283 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]]; 1284 cmd_list->VtxBuffer.swap(new_vtx_buffer); 1285 cmd_list->IdxBuffer.resize(0); 1286 TotalVtxCount += cmd_list->VtxBuffer.Size; 1287 } 1288} 1289 1290// Helper to scale the ClipRect field of each ImDrawCmd. 1291// Use if your final output buffer is at a different scale than draw_data->DisplaySize, 1292// or if there is a difference between your window resolution and framebuffer resolution. 1293void ImDrawData::ScaleClipRects(const ImVec2& fb_scale) 1294{ 1295 for (int i = 0; i < CmdListsCount; i++) 1296 { 1297 ImDrawList* cmd_list = CmdLists[i]; 1298 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) 1299 { 1300 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i]; 1301 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); 1302 } 1303 } 1304} 1305 1306//----------------------------------------------------------------------------- 1307// [SECTION] Helpers ShadeVertsXXX functions 1308//----------------------------------------------------------------------------- 1309 1310// Generic linear color gradient, write to RGB fields, leave A untouched. 1311void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1) 1312{ 1313 ImVec2 gradient_extent = gradient_p1 - gradient_p0; 1314 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent); 1315 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 1316 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 1317 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++) 1318 { 1319 float d = ImDot(vert->pos - gradient_p0, gradient_extent); 1320 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f); 1321 int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t); 1322 int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t); 1323 int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t); 1324 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK); 1325 } 1326} 1327 1328// Distribute UV over (a, b) rectangle 1329void 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) 1330{ 1331 const ImVec2 size = b - a; 1332 const ImVec2 uv_size = uv_b - uv_a; 1333 const ImVec2 scale = ImVec2( 1334 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f, 1335 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f); 1336 1337 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 1338 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 1339 if (clamp) 1340 { 1341 const ImVec2 min = ImMin(uv_a, uv_b); 1342 const ImVec2 max = ImMax(uv_a, uv_b); 1343 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 1344 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max); 1345 } 1346 else 1347 { 1348 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 1349 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale); 1350 } 1351} 1352 1353//----------------------------------------------------------------------------- 1354// [SECTION] ImFontConfig 1355//----------------------------------------------------------------------------- 1356 1357ImFontConfig::ImFontConfig() 1358{ 1359 FontData = NULL; 1360 FontDataSize = 0; 1361 FontDataOwnedByAtlas = true; 1362 FontNo = 0; 1363 SizePixels = 0.0f; 1364 OversampleH = 3; // FIXME: 2 may be a better default? 1365 OversampleV = 1; 1366 PixelSnapH = false; 1367 GlyphExtraSpacing = ImVec2(0.0f, 0.0f); 1368 GlyphOffset = ImVec2(0.0f, 0.0f); 1369 GlyphRanges = NULL; 1370 GlyphMinAdvanceX = 0.0f; 1371 GlyphMaxAdvanceX = FLT_MAX; 1372 MergeMode = false; 1373 RasterizerFlags = 0x00; 1374 RasterizerMultiply = 1.0f; 1375 memset(Name, 0, sizeof(Name)); 1376 DstFont = NULL; 1377} 1378 1379//----------------------------------------------------------------------------- 1380// [SECTION] ImFontAtlas 1381//----------------------------------------------------------------------------- 1382 1383// A work of art lies ahead! (. = white layer, X = black layer, others are blank) 1384// The white texels on the top left are the ones we'll use everywhere in ImGui to render filled shapes. 1385const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108; 1386const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27; 1387const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000; 1388static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] = 1389{ 1390 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX " 1391 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X " 1392 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X " 1393 "X - X.X - X.....X - X.....X -X...X - X...X- X..X " 1394 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X " 1395 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX " 1396 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX " 1397 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX " 1398 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X " 1399 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X" 1400 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X" 1401 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X" 1402 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X" 1403 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X" 1404 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X" 1405 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X" 1406 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X " 1407 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X " 1408 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X " 1409 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X " 1410 " X..X - X...X - X...X - X..X X..X - - X........X " 1411 " XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX " 1412 "------------ - X - X -X.....................X- ------------------" 1413 " ----------------------------------- X...XXXXXXXXXXXXX...X - " 1414 " - X..X X..X - " 1415 " - X.X X.X - " 1416 " - XX XX - " 1417}; 1418 1419static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] = 1420{ 1421 // Pos ........ Size ......... Offset ...... 1422 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow 1423 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput 1424 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll 1425 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS 1426 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW 1427 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW 1428 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE 1429 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand 1430}; 1431 1432ImFontAtlas::ImFontAtlas() 1433{ 1434 Locked = false; 1435 Flags = ImFontAtlasFlags_None; 1436 TexID = (ImTextureID)NULL; 1437 TexDesiredWidth = 0; 1438 TexGlyphPadding = 1; 1439 1440 TexPixelsAlpha8 = NULL; 1441 TexPixelsRGBA32 = NULL; 1442 TexWidth = TexHeight = 0; 1443 TexUvScale = ImVec2(0.0f, 0.0f); 1444 TexUvWhitePixel = ImVec2(0.0f, 0.0f); 1445 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++) 1446 CustomRectIds[n] = -1; 1447} 1448 1449ImFontAtlas::~ImFontAtlas() 1450{ 1451 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1452 Clear(); 1453} 1454 1455void ImFontAtlas::ClearInputData() 1456{ 1457 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1458 for (int i = 0; i < ConfigData.Size; i++) 1459 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas) 1460 { 1461 ImGui::MemFree(ConfigData[i].FontData); 1462 ConfigData[i].FontData = NULL; 1463 } 1464 1465 // When clearing this we lose access to the font name and other information used to build the font. 1466 for (int i = 0; i < Fonts.Size; i++) 1467 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size) 1468 { 1469 Fonts[i]->ConfigData = NULL; 1470 Fonts[i]->ConfigDataCount = 0; 1471 } 1472 ConfigData.clear(); 1473 CustomRects.clear(); 1474 for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++) 1475 CustomRectIds[n] = -1; 1476} 1477 1478void ImFontAtlas::ClearTexData() 1479{ 1480 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1481 if (TexPixelsAlpha8) 1482 ImGui::MemFree(TexPixelsAlpha8); 1483 if (TexPixelsRGBA32) 1484 ImGui::MemFree(TexPixelsRGBA32); 1485 TexPixelsAlpha8 = NULL; 1486 TexPixelsRGBA32 = NULL; 1487} 1488 1489void ImFontAtlas::ClearFonts() 1490{ 1491 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1492 for (int i = 0; i < Fonts.Size; i++) 1493 IM_DELETE(Fonts[i]); 1494 Fonts.clear(); 1495} 1496 1497void ImFontAtlas::Clear() 1498{ 1499 ClearInputData(); 1500 ClearTexData(); 1501 ClearFonts(); 1502} 1503 1504void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 1505{ 1506 // Build atlas on demand 1507 if (TexPixelsAlpha8 == NULL) 1508 { 1509 if (ConfigData.empty()) 1510 AddFontDefault(); 1511 Build(); 1512 } 1513 1514 *out_pixels = TexPixelsAlpha8; 1515 if (out_width) *out_width = TexWidth; 1516 if (out_height) *out_height = TexHeight; 1517 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1; 1518} 1519 1520void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 1521{ 1522 // Convert to RGBA32 format on demand 1523 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp 1524 if (!TexPixelsRGBA32) 1525 { 1526 unsigned char* pixels = NULL; 1527 GetTexDataAsAlpha8(&pixels, NULL, NULL); 1528 if (pixels) 1529 { 1530 TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)TexWidth * (size_t)TexHeight * 4); 1531 const unsigned char* src = pixels; 1532 unsigned int* dst = TexPixelsRGBA32; 1533 for (int n = TexWidth * TexHeight; n > 0; n--) 1534 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++)); 1535 } 1536 } 1537 1538 *out_pixels = (unsigned char*)TexPixelsRGBA32; 1539 if (out_width) *out_width = TexWidth; 1540 if (out_height) *out_height = TexHeight; 1541 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4; 1542} 1543 1544ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg) 1545{ 1546 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1547 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0); 1548 IM_ASSERT(font_cfg->SizePixels > 0.0f); 1549 1550 // Create new font 1551 if (!font_cfg->MergeMode) 1552 Fonts.push_back(IM_NEW(ImFont)); 1553 else 1554 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. 1555 1556 ConfigData.push_back(*font_cfg); 1557 ImFontConfig& new_font_cfg = ConfigData.back(); 1558 if (new_font_cfg.DstFont == NULL) 1559 new_font_cfg.DstFont = Fonts.back(); 1560 if (!new_font_cfg.FontDataOwnedByAtlas) 1561 { 1562 new_font_cfg.FontData = ImGui::MemAlloc(new_font_cfg.FontDataSize); 1563 new_font_cfg.FontDataOwnedByAtlas = true; 1564 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize); 1565 } 1566 1567 // Invalidate texture 1568 ClearTexData(); 1569 return new_font_cfg.DstFont; 1570} 1571 1572// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder) 1573static unsigned int stb_decompress_length(const unsigned char *input); 1574static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length); 1575static const char* GetDefaultCompressedFontDataTTFBase85(); 1576static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } 1577static void Decode85(const unsigned char* src, unsigned char* dst) 1578{ 1579 while (*src) 1580 { 1581 unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4])))); 1582 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. 1583 src += 5; 1584 dst += 4; 1585 } 1586} 1587 1588// Load embedded ProggyClean.ttf at size 13, disable oversampling 1589ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) 1590{ 1591 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1592 if (!font_cfg_template) 1593 { 1594 font_cfg.OversampleH = font_cfg.OversampleV = 1; 1595 font_cfg.PixelSnapH = true; 1596 } 1597 if (font_cfg.SizePixels <= 0.0f) 1598 font_cfg.SizePixels = 13.0f * 1.0f; 1599 if (font_cfg.Name[0] == '\0') 1600 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels); 1601 1602 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85(); 1603 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault(); 1604 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges); 1605 font->DisplayOffset.y = 1.0f; 1606 return font; 1607} 1608 1609ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1610{ 1611 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1612 size_t data_size = 0; 1613 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0); 1614 if (!data) 1615 { 1616 IM_ASSERT(0); // Could not load file. 1617 return NULL; 1618 } 1619 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1620 if (font_cfg.Name[0] == '\0') 1621 { 1622 // Store a short copy of filename into into the font name for convenience 1623 const char* p; 1624 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {} 1625 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels); 1626 } 1627 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges); 1628} 1629 1630// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build(). 1631ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1632{ 1633 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1634 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1635 IM_ASSERT(font_cfg.FontData == NULL); 1636 font_cfg.FontData = ttf_data; 1637 font_cfg.FontDataSize = ttf_size; 1638 font_cfg.SizePixels = size_pixels; 1639 if (glyph_ranges) 1640 font_cfg.GlyphRanges = glyph_ranges; 1641 return AddFont(&font_cfg); 1642} 1643 1644ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 1645{ 1646 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data); 1647 unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size); 1648 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); 1649 1650 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 1651 IM_ASSERT(font_cfg.FontData == NULL); 1652 font_cfg.FontDataOwnedByAtlas = true; 1653 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges); 1654} 1655 1656ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges) 1657{ 1658 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; 1659 void* compressed_ttf = ImGui::MemAlloc((size_t)compressed_ttf_size); 1660 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf); 1661 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); 1662 ImGui::MemFree(compressed_ttf); 1663 return font; 1664} 1665 1666int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height) 1667{ 1668 IM_ASSERT(id >= 0x10000); 1669 IM_ASSERT(width > 0 && width <= 0xFFFF); 1670 IM_ASSERT(height > 0 && height <= 0xFFFF); 1671 CustomRect r; 1672 r.ID = id; 1673 r.Width = (unsigned short)width; 1674 r.Height = (unsigned short)height; 1675 CustomRects.push_back(r); 1676 return CustomRects.Size - 1; // Return index 1677} 1678 1679int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset) 1680{ 1681 IM_ASSERT(font != NULL); 1682 IM_ASSERT(width > 0 && width <= 0xFFFF); 1683 IM_ASSERT(height > 0 && height <= 0xFFFF); 1684 CustomRect r; 1685 r.ID = id; 1686 r.Width = (unsigned short)width; 1687 r.Height = (unsigned short)height; 1688 r.GlyphAdvanceX = advance_x; 1689 r.GlyphOffset = offset; 1690 r.Font = font; 1691 CustomRects.push_back(r); 1692 return CustomRects.Size - 1; // Return index 1693} 1694 1695void ImFontAtlas::CalcCustomRectUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) 1696{ 1697 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates 1698 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed 1699 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y); 1700 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y); 1701} 1702 1703bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2]) 1704{ 1705 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT) 1706 return false; 1707 if (Flags & ImFontAtlasFlags_NoMouseCursors) 1708 return false; 1709 1710 IM_ASSERT(CustomRectIds[0] != -1); 1711 ImFontAtlas::CustomRect& r = CustomRects[CustomRectIds[0]]; 1712 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID); 1713 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y); 1714 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1]; 1715 *out_size = size; 1716 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2]; 1717 out_uv_border[0] = (pos) * TexUvScale; 1718 out_uv_border[1] = (pos + size) * TexUvScale; 1719 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1; 1720 out_uv_fill[0] = (pos) * TexUvScale; 1721 out_uv_fill[1] = (pos + size) * TexUvScale; 1722 return true; 1723} 1724 1725bool ImFontAtlas::Build() 1726{ 1727 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1728 return ImFontAtlasBuildWithStbTruetype(this); 1729} 1730 1731void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor) 1732{ 1733 for (unsigned int i = 0; i < 256; i++) 1734 { 1735 unsigned int value = (unsigned int)(i * in_brighten_factor); 1736 out_table[i] = value > 255 ? 255 : (value & 0xFF); 1737 } 1738} 1739 1740void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride) 1741{ 1742 unsigned char* data = pixels + x + y * stride; 1743 for (int j = h; j > 0; j--, data += stride) 1744 for (int i = 0; i < w; i++) 1745 data[i] = table[data[i]]; 1746} 1747 1748// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont) 1749// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.) 1750struct ImFontBuildSrcData 1751{ 1752 stbtt_fontinfo FontInfo; 1753 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data) 1754 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position. 1755 stbtt_packedchar* PackedChars; // Output glyphs 1756 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF) 1757 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[] 1758 int GlyphsHighest; // Highest requested codepoint 1759 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font) 1760 ImBoolVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB) 1761 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap) 1762}; 1763 1764// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont) 1765struct ImFontBuildDstData 1766{ 1767 int SrcCount; // Number of source fonts targeting this destination font. 1768 int GlyphsHighest; 1769 int GlyphsCount; 1770 ImBoolVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font. 1771}; 1772 1773static void UnpackBoolVectorToFlatIndexList(const ImBoolVector* in, ImVector<int>* out) 1774{ 1775 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int)); 1776 const int* it_begin = in->Storage.begin(); 1777 const int* it_end = in->Storage.end(); 1778 for (const int* it = it_begin; it < it_end; it++) 1779 if (int entries_32 = *it) 1780 for (int bit_n = 0; bit_n < 32; bit_n++) 1781 if (entries_32 & (1 << bit_n)) 1782 out->push_back((int)((it - it_begin) << 5) + bit_n); 1783} 1784 1785bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas) 1786{ 1787 IM_ASSERT(atlas->ConfigData.Size > 0); 1788 1789 ImFontAtlasBuildRegisterDefaultCustomRects(atlas); 1790 1791 // Clear atlas 1792 atlas->TexID = (ImTextureID)NULL; 1793 atlas->TexWidth = atlas->TexHeight = 0; 1794 atlas->TexUvScale = ImVec2(0.0f, 0.0f); 1795 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f); 1796 atlas->ClearTexData(); 1797 1798 // Temporary storage for building 1799 ImVector<ImFontBuildSrcData> src_tmp_array; 1800 ImVector<ImFontBuildDstData> dst_tmp_array; 1801 src_tmp_array.resize(atlas->ConfigData.Size); 1802 dst_tmp_array.resize(atlas->Fonts.Size); 1803 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes()); 1804 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes()); 1805 1806 // 1. Initialize font loading structure, check font data validity 1807 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++) 1808 { 1809 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1810 ImFontConfig& cfg = atlas->ConfigData[src_i]; 1811 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas)); 1812 1813 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices) 1814 src_tmp.DstIndex = -1; 1815 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++) 1816 if (cfg.DstFont == atlas->Fonts[output_i]) 1817 src_tmp.DstIndex = output_i; 1818 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array? 1819 if (src_tmp.DstIndex == -1) 1820 return false; 1821 1822 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct 1823 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo); 1824 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found."); 1825 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset)) 1826 return false; 1827 1828 // Measure highest codepoints 1829 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 1830 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault(); 1831 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 1832 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]); 1833 dst_tmp.SrcCount++; 1834 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest); 1835 } 1836 1837 // 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. 1838 int total_glyphs_count = 0; 1839 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1840 { 1841 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1842 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 1843 ImFontConfig& cfg = atlas->ConfigData[src_i]; 1844 src_tmp.GlyphsSet.Resize(src_tmp.GlyphsHighest + 1); 1845 if (dst_tmp.SrcCount > 1 && dst_tmp.GlyphsSet.Storage.empty()) 1846 dst_tmp.GlyphsSet.Resize(dst_tmp.GlyphsHighest + 1); 1847 1848 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 1849 for (int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++) 1850 { 1851 if (cfg.MergeMode && dst_tmp.GlyphsSet.GetBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option (e.g. MergeOverwrite) 1852 continue; 1853 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font? 1854 continue; 1855 1856 // Add to avail set/counters 1857 src_tmp.GlyphsCount++; 1858 dst_tmp.GlyphsCount++; 1859 src_tmp.GlyphsSet.SetBit(codepoint, true); 1860 if (dst_tmp.SrcCount > 1) 1861 dst_tmp.GlyphsSet.SetBit(codepoint, true); 1862 total_glyphs_count++; 1863 } 1864 } 1865 1866 // 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) 1867 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1868 { 1869 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1870 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount); 1871 UnpackBoolVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList); 1872 src_tmp.GlyphsSet.Clear(); 1873 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount); 1874 } 1875 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++) 1876 dst_tmp_array[dst_i].GlyphsSet.Clear(); 1877 dst_tmp_array.clear(); 1878 1879 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0) 1880 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity) 1881 ImVector<stbrp_rect> buf_rects; 1882 ImVector<stbtt_packedchar> buf_packedchars; 1883 buf_rects.resize(total_glyphs_count); 1884 buf_packedchars.resize(total_glyphs_count); 1885 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes()); 1886 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes()); 1887 1888 // 4. Gather glyphs sizes so we can pack them in our virtual canvas. 1889 int total_surface = 0; 1890 int buf_rects_out_n = 0; 1891 int buf_packedchars_out_n = 0; 1892 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1893 { 1894 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1895 if (src_tmp.GlyphsCount == 0) 1896 continue; 1897 1898 src_tmp.Rects = &buf_rects[buf_rects_out_n]; 1899 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n]; 1900 buf_rects_out_n += src_tmp.GlyphsCount; 1901 buf_packedchars_out_n += src_tmp.GlyphsCount; 1902 1903 // Convert our ranges in the format stb_truetype wants 1904 ImFontConfig& cfg = atlas->ConfigData[src_i]; 1905 src_tmp.PackRange.font_size = cfg.SizePixels; 1906 src_tmp.PackRange.first_unicode_codepoint_in_range = 0; 1907 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data; 1908 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size; 1909 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars; 1910 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH; 1911 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV; 1912 1913 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects) 1914 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels); 1915 const int padding = atlas->TexGlyphPadding; 1916 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++) 1917 { 1918 int x0, y0, x1, y1; 1919 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]); 1920 IM_ASSERT(glyph_index_in_font != 0); 1921 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1); 1922 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1); 1923 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1); 1924 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h; 1925 } 1926 } 1927 1928 // We need a width for the skyline algorithm, any width! 1929 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height. 1930 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface. 1931 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1; 1932 atlas->TexHeight = 0; 1933 if (atlas->TexDesiredWidth > 0) 1934 atlas->TexWidth = atlas->TexDesiredWidth; 1935 else 1936 atlas->TexWidth = (surface_sqrt >= 4096*0.7f) ? 4096 : (surface_sqrt >= 2048*0.7f) ? 2048 : (surface_sqrt >= 1024*0.7f) ? 1024 : 512; 1937 1938 // 5. Start packing 1939 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values). 1940 const int TEX_HEIGHT_MAX = 1024 * 32; 1941 stbtt_pack_context spc = {}; 1942 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL); 1943 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info); 1944 1945 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point. 1946 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1947 { 1948 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1949 if (src_tmp.GlyphsCount == 0) 1950 continue; 1951 1952 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount); 1953 1954 // Extend texture height and mark missing glyphs as non-packed so we won't render them. 1955 // 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?) 1956 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 1957 if (src_tmp.Rects[glyph_i].was_packed) 1958 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h); 1959 } 1960 1961 // 7. Allocate texture 1962 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight); 1963 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight); 1964 atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight); 1965 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight); 1966 spc.pixels = atlas->TexPixelsAlpha8; 1967 spc.height = atlas->TexHeight; 1968 1969 // 8. Render/rasterize font characters into the texture 1970 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1971 { 1972 ImFontConfig& cfg = atlas->ConfigData[src_i]; 1973 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 1974 if (src_tmp.GlyphsCount == 0) 1975 continue; 1976 1977 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects); 1978 1979 // Apply multiply operator 1980 if (cfg.RasterizerMultiply != 1.0f) 1981 { 1982 unsigned char multiply_table[256]; 1983 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply); 1984 stbrp_rect* r = &src_tmp.Rects[0]; 1985 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++) 1986 if (r->was_packed) 1987 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1); 1988 } 1989 src_tmp.Rects = NULL; 1990 } 1991 1992 // End packing 1993 stbtt_PackEnd(&spc); 1994 buf_rects.clear(); 1995 1996 // 9. Setup ImFont and glyphs for runtime 1997 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 1998 { 1999 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2000 if (src_tmp.GlyphsCount == 0) 2001 continue; 2002 2003 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2004 ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true) 2005 2006 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels); 2007 int unscaled_ascent, unscaled_descent, unscaled_line_gap; 2008 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap); 2009 2010 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1)); 2011 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1)); 2012 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent); 2013 const float font_off_x = cfg.GlyphOffset.x; 2014 const float font_off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f); 2015 2016 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 2017 { 2018 const int codepoint = src_tmp.GlyphsList[glyph_i]; 2019 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i]; 2020 2021 const float char_advance_x_org = pc.xadvance; 2022 const float char_advance_x_mod = ImClamp(char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX); 2023 float char_off_x = font_off_x; 2024 if (char_advance_x_org != char_advance_x_mod) 2025 char_off_x += cfg.PixelSnapH ? (float)(int)((char_advance_x_mod - char_advance_x_org) * 0.5f) : (char_advance_x_mod - char_advance_x_org) * 0.5f; 2026 2027 // Register glyph 2028 stbtt_aligned_quad q; 2029 float dummy_x = 0.0f, dummy_y = 0.0f; 2030 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &dummy_x, &dummy_y, &q, 0); 2031 dst_font->AddGlyph((ImWchar)codepoint, q.x0 + char_off_x, q.y0 + font_off_y, q.x1 + char_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, char_advance_x_mod); 2032 } 2033 } 2034 2035 // Cleanup temporary (ImVector doesn't honor destructor) 2036 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2037 src_tmp_array[src_i].~ImFontBuildSrcData(); 2038 2039 ImFontAtlasBuildFinish(atlas); 2040 return true; 2041} 2042 2043void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas) 2044{ 2045 if (atlas->CustomRectIds[0] >= 0) 2046 return; 2047 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 2048 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF*2+1, FONT_ATLAS_DEFAULT_TEX_DATA_H); 2049 else 2050 atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2); 2051} 2052 2053void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent) 2054{ 2055 if (!font_config->MergeMode) 2056 { 2057 font->ClearOutputData(); 2058 font->FontSize = font_config->SizePixels; 2059 font->ConfigData = font_config; 2060 font->ContainerAtlas = atlas; 2061 font->Ascent = ascent; 2062 font->Descent = descent; 2063 } 2064 font->ConfigDataCount++; 2065} 2066 2067void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque) 2068{ 2069 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque; 2070 IM_ASSERT(pack_context != NULL); 2071 2072 ImVector<ImFontAtlas::CustomRect>& user_rects = atlas->CustomRects; 2073 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong. 2074 2075 ImVector<stbrp_rect> pack_rects; 2076 pack_rects.resize(user_rects.Size); 2077 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes()); 2078 for (int i = 0; i < user_rects.Size; i++) 2079 { 2080 pack_rects[i].w = user_rects[i].Width; 2081 pack_rects[i].h = user_rects[i].Height; 2082 } 2083 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size); 2084 for (int i = 0; i < pack_rects.Size; i++) 2085 if (pack_rects[i].was_packed) 2086 { 2087 user_rects[i].X = pack_rects[i].x; 2088 user_rects[i].Y = pack_rects[i].y; 2089 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height); 2090 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h); 2091 } 2092} 2093 2094static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas) 2095{ 2096 IM_ASSERT(atlas->CustomRectIds[0] >= 0); 2097 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL); 2098 ImFontAtlas::CustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]]; 2099 IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID); 2100 IM_ASSERT(r.IsPacked()); 2101 2102 const int w = atlas->TexWidth; 2103 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 2104 { 2105 // Render/copy pixels 2106 IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H); 2107 for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++) 2108 for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++) 2109 { 2110 const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w; 2111 const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1; 2112 atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00; 2113 atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00; 2114 } 2115 } 2116 else 2117 { 2118 IM_ASSERT(r.Width == 2 && r.Height == 2); 2119 const int offset = (int)(r.X) + (int)(r.Y) * w; 2120 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF; 2121 } 2122 atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y); 2123} 2124 2125void ImFontAtlasBuildFinish(ImFontAtlas* atlas) 2126{ 2127 // Render into our custom data block 2128 ImFontAtlasBuildRenderDefaultTexData(atlas); 2129 2130 // Register custom rectangle glyphs 2131 for (int i = 0; i < atlas->CustomRects.Size; i++) 2132 { 2133 const ImFontAtlas::CustomRect& r = atlas->CustomRects[i]; 2134 if (r.Font == NULL || r.ID > 0x10000) 2135 continue; 2136 2137 IM_ASSERT(r.Font->ContainerAtlas == atlas); 2138 ImVec2 uv0, uv1; 2139 atlas->CalcCustomRectUV(&r, &uv0, &uv1); 2140 r.Font->AddGlyph((ImWchar)r.ID, r.GlyphOffset.x, r.GlyphOffset.y, r.GlyphOffset.x + r.Width, r.GlyphOffset.y + r.Height, uv0.x, uv0.y, uv1.x, uv1.y, r.GlyphAdvanceX); 2141 } 2142 2143 // Build all fonts lookup tables 2144 for (int i = 0; i < atlas->Fonts.Size; i++) 2145 if (atlas->Fonts[i]->DirtyLookupTables) 2146 atlas->Fonts[i]->BuildLookupTable(); 2147} 2148 2149// Retrieve list of range (2 int per range, values are inclusive) 2150const ImWchar* ImFontAtlas::GetGlyphRangesDefault() 2151{ 2152 static const ImWchar ranges[] = 2153 { 2154 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2155 0, 2156 }; 2157 return &ranges[0]; 2158} 2159 2160const ImWchar* ImFontAtlas::GetGlyphRangesKorean() 2161{ 2162 static const ImWchar ranges[] = 2163 { 2164 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2165 0x3131, 0x3163, // Korean alphabets 2166 0xAC00, 0xD79D, // Korean characters 2167 0, 2168 }; 2169 return &ranges[0]; 2170} 2171 2172const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull() 2173{ 2174 static const ImWchar ranges[] = 2175 { 2176 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2177 0x2000, 0x206F, // General Punctuation 2178 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 2179 0x31F0, 0x31FF, // Katakana Phonetic Extensions 2180 0xFF00, 0xFFEF, // Half-width characters 2181 0x4e00, 0x9FAF, // CJK Ideograms 2182 0, 2183 }; 2184 return &ranges[0]; 2185} 2186 2187static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges) 2188{ 2189 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2) 2190 { 2191 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]); 2192 base_codepoint += accumulative_offsets[n]; 2193 } 2194 out_ranges[0] = 0; 2195} 2196 2197//------------------------------------------------------------------------- 2198// [SECTION] ImFontAtlas glyph ranges helpers 2199//------------------------------------------------------------------------- 2200 2201const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon() 2202{ 2203 // Store 2500 regularly used characters for Simplified Chinese. 2204 // 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 2205 // This table covers 97.97% of all characters used during the month in July, 1987. 2206 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 2207 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 2208 static const short accumulative_offsets_from_0x4E00[] = 2209 { 2210 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, 2211 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, 2212 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, 2213 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, 2214 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, 2215 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, 2216 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, 2217 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, 2218 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, 2219 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, 2220 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, 2221 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, 2222 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, 2223 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, 2224 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, 2225 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, 2226 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, 2227 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, 2228 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, 2229 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, 2230 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, 2231 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, 2232 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, 2233 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, 2234 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, 2235 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, 2236 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, 2237 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, 2238 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, 2239 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, 2240 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, 2241 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, 2242 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, 2243 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, 2244 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, 2245 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, 2246 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, 2247 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, 2248 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, 2249 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 2250 }; 2251 static ImWchar base_ranges[] = // not zero-terminated 2252 { 2253 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2254 0x2000, 0x206F, // General Punctuation 2255 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 2256 0x31F0, 0x31FF, // Katakana Phonetic Extensions 2257 0xFF00, 0xFFEF // Half-width characters 2258 }; 2259 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 }; 2260 if (!full_ranges[0]) 2261 { 2262 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 2263 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 2264 } 2265 return &full_ranges[0]; 2266} 2267 2268const ImWchar* ImFontAtlas::GetGlyphRangesJapanese() 2269{ 2270 // 1946 common ideograms code points for Japanese 2271 // Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering 2272 // FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this. 2273 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 2274 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 2275 static const short accumulative_offsets_from_0x4E00[] = 2276 { 2277 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, 2278 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, 2279 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, 2280 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, 2281 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, 2282 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, 2283 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, 2284 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, 2285 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, 2286 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, 2287 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, 2288 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, 2289 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, 2290 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, 2291 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, 2292 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, 2293 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, 2294 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, 2295 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, 2296 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, 2297 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, 2298 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, 2299 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, 2300 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, 2301 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, 2302 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, 2303 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, 2304 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, 2305 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, 2306 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, 2307 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, 2308 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, 2309 }; 2310 static ImWchar base_ranges[] = // not zero-terminated 2311 { 2312 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2313 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 2314 0x31F0, 0x31FF, // Katakana Phonetic Extensions 2315 0xFF00, 0xFFEF // Half-width characters 2316 }; 2317 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 }; 2318 if (!full_ranges[0]) 2319 { 2320 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 2321 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 2322 } 2323 return &full_ranges[0]; 2324} 2325 2326const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic() 2327{ 2328 static const ImWchar ranges[] = 2329 { 2330 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2331 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement 2332 0x2DE0, 0x2DFF, // Cyrillic Extended-A 2333 0xA640, 0xA69F, // Cyrillic Extended-B 2334 0, 2335 }; 2336 return &ranges[0]; 2337} 2338 2339const ImWchar* ImFontAtlas::GetGlyphRangesThai() 2340{ 2341 static const ImWchar ranges[] = 2342 { 2343 0x0020, 0x00FF, // Basic Latin 2344 0x2010, 0x205E, // Punctuations 2345 0x0E00, 0x0E7F, // Thai 2346 0, 2347 }; 2348 return &ranges[0]; 2349} 2350 2351//----------------------------------------------------------------------------- 2352// [SECTION] ImFontGlyphRangesBuilder 2353//----------------------------------------------------------------------------- 2354 2355void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end) 2356{ 2357 while (text_end ? (text < text_end) : *text) 2358 { 2359 unsigned int c = 0; 2360 int c_len = ImTextCharFromUtf8(&c, text, text_end); 2361 text += c_len; 2362 if (c_len == 0) 2363 break; 2364 if (c < 0x10000) 2365 AddChar((ImWchar)c); 2366 } 2367} 2368 2369void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges) 2370{ 2371 for (; ranges[0]; ranges += 2) 2372 for (ImWchar c = ranges[0]; c <= ranges[1]; c++) 2373 AddChar(c); 2374} 2375 2376void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges) 2377{ 2378 for (int n = 0; n < 0x10000; n++) 2379 if (GetBit(n)) 2380 { 2381 out_ranges->push_back((ImWchar)n); 2382 while (n < 0x10000 && GetBit(n + 1)) 2383 n++; 2384 out_ranges->push_back((ImWchar)n); 2385 } 2386 out_ranges->push_back(0); 2387} 2388 2389//----------------------------------------------------------------------------- 2390// [SECTION] ImFont 2391//----------------------------------------------------------------------------- 2392 2393ImFont::ImFont() 2394{ 2395 FontSize = 0.0f; 2396 FallbackAdvanceX = 0.0f; 2397 FallbackChar = (ImWchar)'?'; 2398 DisplayOffset = ImVec2(0.0f, 0.0f); 2399 FallbackGlyph = NULL; 2400 ContainerAtlas = NULL; 2401 ConfigData = NULL; 2402 ConfigDataCount = 0; 2403 DirtyLookupTables = false; 2404 Scale = 1.0f; 2405 Ascent = Descent = 0.0f; 2406 MetricsTotalSurface = 0; 2407} 2408 2409ImFont::~ImFont() 2410{ 2411 ClearOutputData(); 2412} 2413 2414void ImFont::ClearOutputData() 2415{ 2416 FontSize = 0.0f; 2417 FallbackAdvanceX = 0.0f; 2418 Glyphs.clear(); 2419 IndexAdvanceX.clear(); 2420 IndexLookup.clear(); 2421 FallbackGlyph = NULL; 2422 ContainerAtlas = NULL; 2423 DirtyLookupTables = true; 2424 Ascent = Descent = 0.0f; 2425 MetricsTotalSurface = 0; 2426} 2427 2428void ImFont::BuildLookupTable() 2429{ 2430 int max_codepoint = 0; 2431 for (int i = 0; i != Glyphs.Size; i++) 2432 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint); 2433 2434 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved 2435 IndexAdvanceX.clear(); 2436 IndexLookup.clear(); 2437 DirtyLookupTables = false; 2438 GrowIndex(max_codepoint + 1); 2439 for (int i = 0; i < Glyphs.Size; i++) 2440 { 2441 int codepoint = (int)Glyphs[i].Codepoint; 2442 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX; 2443 IndexLookup[codepoint] = (ImWchar)i; 2444 } 2445 2446 // Create a glyph to handle TAB 2447 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?) 2448 if (FindGlyph((ImWchar)' ')) 2449 { 2450 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times 2451 Glyphs.resize(Glyphs.Size + 1); 2452 ImFontGlyph& tab_glyph = Glyphs.back(); 2453 tab_glyph = *FindGlyph((ImWchar)' '); 2454 tab_glyph.Codepoint = '\t'; 2455 tab_glyph.AdvanceX *= 4; 2456 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX; 2457 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size-1); 2458 } 2459 2460 FallbackGlyph = FindGlyphNoFallback(FallbackChar); 2461 FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f; 2462 for (int i = 0; i < max_codepoint + 1; i++) 2463 if (IndexAdvanceX[i] < 0.0f) 2464 IndexAdvanceX[i] = FallbackAdvanceX; 2465} 2466 2467void ImFont::SetFallbackChar(ImWchar c) 2468{ 2469 FallbackChar = c; 2470 BuildLookupTable(); 2471} 2472 2473void ImFont::GrowIndex(int new_size) 2474{ 2475 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size); 2476 if (new_size <= IndexLookup.Size) 2477 return; 2478 IndexAdvanceX.resize(new_size, -1.0f); 2479 IndexLookup.resize(new_size, (ImWchar)-1); 2480} 2481 2482// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero. 2483// 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). 2484void ImFont::AddGlyph(ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x) 2485{ 2486 Glyphs.resize(Glyphs.Size + 1); 2487 ImFontGlyph& glyph = Glyphs.back(); 2488 glyph.Codepoint = (ImWchar)codepoint; 2489 glyph.X0 = x0; 2490 glyph.Y0 = y0; 2491 glyph.X1 = x1; 2492 glyph.Y1 = y1; 2493 glyph.U0 = u0; 2494 glyph.V0 = v0; 2495 glyph.U1 = u1; 2496 glyph.V1 = v1; 2497 glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x; // Bake spacing into AdvanceX 2498 2499 if (ConfigData->PixelSnapH) 2500 glyph.AdvanceX = (float)(int)(glyph.AdvanceX + 0.5f); 2501 2502 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round) 2503 DirtyLookupTables = true; 2504 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + 1.99f); 2505} 2506 2507void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst) 2508{ 2509 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function. 2510 int index_size = IndexLookup.Size; 2511 2512 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists 2513 return; 2514 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op 2515 return; 2516 2517 GrowIndex(dst + 1); 2518 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1; 2519 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f; 2520} 2521 2522const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const 2523{ 2524 if (c >= IndexLookup.Size) 2525 return FallbackGlyph; 2526 const ImWchar i = IndexLookup.Data[c]; 2527 if (i == (ImWchar)-1) 2528 return FallbackGlyph; 2529 return &Glyphs.Data[i]; 2530} 2531 2532const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const 2533{ 2534 if (c >= IndexLookup.Size) 2535 return NULL; 2536 const ImWchar i = IndexLookup.Data[c]; 2537 if (i == (ImWchar)-1) 2538 return NULL; 2539 return &Glyphs.Data[i]; 2540} 2541 2542const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const 2543{ 2544 // Simple word-wrapping for English, not full-featured. Please submit failing cases! 2545 // 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.) 2546 2547 // For references, possible wrap point marked with ^ 2548 // "aaa bbb, ccc,ddd. eee fff. ggg!" 2549 // ^ ^ ^ ^ ^__ ^ ^ 2550 2551 // List of hardcoded separators: .,;!?'" 2552 2553 // Skip extra blanks after a line returns (that includes not counting them in width computation) 2554 // e.g. "Hello world" --> "Hello" "World" 2555 2556 // Cut words that cannot possibly fit within one line. 2557 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish" 2558 2559 float line_width = 0.0f; 2560 float word_width = 0.0f; 2561 float blank_width = 0.0f; 2562 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters 2563 2564 const char* word_end = text; 2565 const char* prev_word_end = NULL; 2566 bool inside_word = true; 2567 2568 const char* s = text; 2569 while (s < text_end) 2570 { 2571 unsigned int c = (unsigned int)*s; 2572 const char* next_s; 2573 if (c < 0x80) 2574 next_s = s + 1; 2575 else 2576 next_s = s + ImTextCharFromUtf8(&c, s, text_end); 2577 if (c == 0) 2578 break; 2579 2580 if (c < 32) 2581 { 2582 if (c == '\n') 2583 { 2584 line_width = word_width = blank_width = 0.0f; 2585 inside_word = true; 2586 s = next_s; 2587 continue; 2588 } 2589 if (c == '\r') 2590 { 2591 s = next_s; 2592 continue; 2593 } 2594 } 2595 2596 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX); 2597 if (ImCharIsBlankW(c)) 2598 { 2599 if (inside_word) 2600 { 2601 line_width += blank_width; 2602 blank_width = 0.0f; 2603 word_end = s; 2604 } 2605 blank_width += char_width; 2606 inside_word = false; 2607 } 2608 else 2609 { 2610 word_width += char_width; 2611 if (inside_word) 2612 { 2613 word_end = next_s; 2614 } 2615 else 2616 { 2617 prev_word_end = word_end; 2618 line_width += word_width + blank_width; 2619 word_width = blank_width = 0.0f; 2620 } 2621 2622 // Allow wrapping after punctuation. 2623 inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"'); 2624 } 2625 2626 // We ignore blank width at the end of the line (they can be skipped) 2627 if (line_width + word_width >= wrap_width) 2628 { 2629 // Words that cannot possibly fit within an entire line will be cut anywhere. 2630 if (word_width < wrap_width) 2631 s = prev_word_end ? prev_word_end : word_end; 2632 break; 2633 } 2634 2635 s = next_s; 2636 } 2637 2638 return s; 2639} 2640 2641ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const 2642{ 2643 if (!text_end) 2644 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this. 2645 2646 const float line_height = size; 2647 const float scale = size / FontSize; 2648 2649 ImVec2 text_size = ImVec2(0,0); 2650 float line_width = 0.0f; 2651 2652 const bool word_wrap_enabled = (wrap_width > 0.0f); 2653 const char* word_wrap_eol = NULL; 2654 2655 const char* s = text_begin; 2656 while (s < text_end) 2657 { 2658 if (word_wrap_enabled) 2659 { 2660 // 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. 2661 if (!word_wrap_eol) 2662 { 2663 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width); 2664 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 2665 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 2666 } 2667 2668 if (s >= word_wrap_eol) 2669 { 2670 if (text_size.x < line_width) 2671 text_size.x = line_width; 2672 text_size.y += line_height; 2673 line_width = 0.0f; 2674 word_wrap_eol = NULL; 2675 2676 // Wrapping skips upcoming blanks 2677 while (s < text_end) 2678 { 2679 const char c = *s; 2680 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } 2681 } 2682 continue; 2683 } 2684 } 2685 2686 // Decode and advance source 2687 const char* prev_s = s; 2688 unsigned int c = (unsigned int)*s; 2689 if (c < 0x80) 2690 { 2691 s += 1; 2692 } 2693 else 2694 { 2695 s += ImTextCharFromUtf8(&c, s, text_end); 2696 if (c == 0) // Malformed UTF-8? 2697 break; 2698 } 2699 2700 if (c < 32) 2701 { 2702 if (c == '\n') 2703 { 2704 text_size.x = ImMax(text_size.x, line_width); 2705 text_size.y += line_height; 2706 line_width = 0.0f; 2707 continue; 2708 } 2709 if (c == '\r') 2710 continue; 2711 } 2712 2713 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale; 2714 if (line_width + char_width >= max_width) 2715 { 2716 s = prev_s; 2717 break; 2718 } 2719 2720 line_width += char_width; 2721 } 2722 2723 if (text_size.x < line_width) 2724 text_size.x = line_width; 2725 2726 if (line_width > 0 || text_size.y == 0.0f) 2727 text_size.y += line_height; 2728 2729 if (remaining) 2730 *remaining = s; 2731 2732 return text_size; 2733} 2734 2735void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const 2736{ 2737 if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded. 2738 return; 2739 if (const ImFontGlyph* glyph = FindGlyph(c)) 2740 { 2741 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f; 2742 pos.x = (float)(int)pos.x + DisplayOffset.x; 2743 pos.y = (float)(int)pos.y + DisplayOffset.y; 2744 draw_list->PrimReserve(6, 4); 2745 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); 2746 } 2747} 2748 2749void 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 2750{ 2751 if (!text_end) 2752 text_end = text_begin + strlen(text_begin); // ImGui functions generally already provides a valid text_end, so this is merely to handle direct calls. 2753 2754 // Align to be pixel perfect 2755 pos.x = (float)(int)pos.x + DisplayOffset.x; 2756 pos.y = (float)(int)pos.y + DisplayOffset.y; 2757 float x = pos.x; 2758 float y = pos.y; 2759 if (y > clip_rect.w) 2760 return; 2761 2762 const float scale = size / FontSize; 2763 const float line_height = FontSize * scale; 2764 const bool word_wrap_enabled = (wrap_width > 0.0f); 2765 const char* word_wrap_eol = NULL; 2766 2767 // Fast-forward to first visible line 2768 const char* s = text_begin; 2769 if (y + line_height < clip_rect.y && !word_wrap_enabled) 2770 while (y + line_height < clip_rect.y && s < text_end) 2771 { 2772 s = (const char*)memchr(s, '\n', text_end - s); 2773 s = s ? s + 1 : text_end; 2774 y += line_height; 2775 } 2776 2777 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve() 2778 // 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) 2779 if (text_end - s > 10000 && !word_wrap_enabled) 2780 { 2781 const char* s_end = s; 2782 float y_end = y; 2783 while (y_end < clip_rect.w && s_end < text_end) 2784 { 2785 s_end = (const char*)memchr(s_end, '\n', text_end - s_end); 2786 s_end = s_end ? s_end + 1 : text_end; 2787 y_end += line_height; 2788 } 2789 text_end = s_end; 2790 } 2791 if (s == text_end) 2792 return; 2793 2794 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized) 2795 const int vtx_count_max = (int)(text_end - s) * 4; 2796 const int idx_count_max = (int)(text_end - s) * 6; 2797 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; 2798 draw_list->PrimReserve(idx_count_max, vtx_count_max); 2799 2800 ImDrawVert* vtx_write = draw_list->_VtxWritePtr; 2801 ImDrawIdx* idx_write = draw_list->_IdxWritePtr; 2802 unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx; 2803 2804 while (s < text_end) 2805 { 2806 if (word_wrap_enabled) 2807 { 2808 // 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. 2809 if (!word_wrap_eol) 2810 { 2811 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x)); 2812 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 2813 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 2814 } 2815 2816 if (s >= word_wrap_eol) 2817 { 2818 x = pos.x; 2819 y += line_height; 2820 word_wrap_eol = NULL; 2821 2822 // Wrapping skips upcoming blanks 2823 while (s < text_end) 2824 { 2825 const char c = *s; 2826 if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; } 2827 } 2828 continue; 2829 } 2830 } 2831 2832 // Decode and advance source 2833 unsigned int c = (unsigned int)*s; 2834 if (c < 0x80) 2835 { 2836 s += 1; 2837 } 2838 else 2839 { 2840 s += ImTextCharFromUtf8(&c, s, text_end); 2841 if (c == 0) // Malformed UTF-8? 2842 break; 2843 } 2844 2845 if (c < 32) 2846 { 2847 if (c == '\n') 2848 { 2849 x = pos.x; 2850 y += line_height; 2851 if (y > clip_rect.w) 2852 break; // break out of main loop 2853 continue; 2854 } 2855 if (c == '\r') 2856 continue; 2857 } 2858 2859 float char_width = 0.0f; 2860 if (const ImFontGlyph* glyph = FindGlyph((ImWchar)c)) 2861 { 2862 char_width = glyph->AdvanceX * scale; 2863 2864 // Arbitrarily assume that both space and tabs are empty glyphs as an optimization 2865 if (c != ' ' && c != '\t') 2866 { 2867 // 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 2868 float x1 = x + glyph->X0 * scale; 2869 float x2 = x + glyph->X1 * scale; 2870 float y1 = y + glyph->Y0 * scale; 2871 float y2 = y + glyph->Y1 * scale; 2872 if (x1 <= clip_rect.z && x2 >= clip_rect.x) 2873 { 2874 // Render a character 2875 float u1 = glyph->U0; 2876 float v1 = glyph->V0; 2877 float u2 = glyph->U1; 2878 float v2 = glyph->V1; 2879 2880 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads. 2881 if (cpu_fine_clip) 2882 { 2883 if (x1 < clip_rect.x) 2884 { 2885 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1); 2886 x1 = clip_rect.x; 2887 } 2888 if (y1 < clip_rect.y) 2889 { 2890 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1); 2891 y1 = clip_rect.y; 2892 } 2893 if (x2 > clip_rect.z) 2894 { 2895 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1); 2896 x2 = clip_rect.z; 2897 } 2898 if (y2 > clip_rect.w) 2899 { 2900 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1); 2901 y2 = clip_rect.w; 2902 } 2903 if (y1 >= y2) 2904 { 2905 x += char_width; 2906 continue; 2907 } 2908 } 2909 2910 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here: 2911 { 2912 idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2); 2913 idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3); 2914 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; 2915 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; 2916 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; 2917 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; 2918 vtx_write += 4; 2919 vtx_current_idx += 4; 2920 idx_write += 6; 2921 } 2922 } 2923 } 2924 } 2925 2926 x += char_width; 2927 } 2928 2929 // Give back unused vertices 2930 draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data)); 2931 draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data)); 2932 draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); 2933 draw_list->_VtxWritePtr = vtx_write; 2934 draw_list->_IdxWritePtr = idx_write; 2935 draw_list->_VtxCurrentIdx = (unsigned int)draw_list->VtxBuffer.Size; 2936} 2937 2938//----------------------------------------------------------------------------- 2939// [SECTION] Internal Render Helpers 2940// (progressively moved from imgui.cpp to here when they are redesigned to stop accessing ImGui global state) 2941//----------------------------------------------------------------------------- 2942// - RenderMouseCursor() 2943// - RenderArrowPointingAt() 2944// - RenderRectFilledRangeH() 2945// - RenderPixelEllipsis() 2946//----------------------------------------------------------------------------- 2947 2948void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor) 2949{ 2950 if (mouse_cursor == ImGuiMouseCursor_None) 2951 return; 2952 IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT); 2953 2954 const ImU32 col_shadow = IM_COL32(0, 0, 0, 48); 2955 const ImU32 col_border = IM_COL32(0, 0, 0, 255); // Black 2956 const ImU32 col_fill = IM_COL32(255, 255, 255, 255); // White 2957 2958 ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas; 2959 ImVec2 offset, size, uv[4]; 2960 if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2])) 2961 { 2962 pos -= offset; 2963 const ImTextureID tex_id = font_atlas->TexID; 2964 draw_list->PushTextureID(tex_id); 2965 draw_list->AddImage(tex_id, pos + ImVec2(1,0)*scale, pos + ImVec2(1,0)*scale + size*scale, uv[2], uv[3], col_shadow); 2966 draw_list->AddImage(tex_id, pos + ImVec2(2,0)*scale, pos + ImVec2(2,0)*scale + size*scale, uv[2], uv[3], col_shadow); 2967 draw_list->AddImage(tex_id, pos, pos + size*scale, uv[2], uv[3], col_border); 2968 draw_list->AddImage(tex_id, pos, pos + size*scale, uv[0], uv[1], col_fill); 2969 draw_list->PopTextureID(); 2970 } 2971} 2972 2973// 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. 2974void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col) 2975{ 2976 switch (direction) 2977 { 2978 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; 2979 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; 2980 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; 2981 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; 2982 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings 2983 } 2984} 2985 2986static inline float ImAcos01(float x) 2987{ 2988 if (x <= 0.0f) return IM_PI * 0.5f; 2989 if (x >= 1.0f) return 0.0f; 2990 return ImAcos(x); 2991 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do. 2992} 2993 2994// FIXME: Cleanup and move code to ImDrawList. 2995void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding) 2996{ 2997 if (x_end_norm == x_start_norm) 2998 return; 2999 if (x_start_norm > x_end_norm) 3000 ImSwap(x_start_norm, x_end_norm); 3001 3002 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y); 3003 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y); 3004 if (rounding == 0.0f) 3005 { 3006 draw_list->AddRectFilled(p0, p1, col, 0.0f); 3007 return; 3008 } 3009 3010 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding); 3011 const float inv_rounding = 1.0f / rounding; 3012 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding); 3013 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding); 3014 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return. 3015 const float x0 = ImMax(p0.x, rect.Min.x + rounding); 3016 if (arc0_b == arc0_e) 3017 { 3018 draw_list->PathLineTo(ImVec2(x0, p1.y)); 3019 draw_list->PathLineTo(ImVec2(x0, p0.y)); 3020 } 3021 else if (arc0_b == 0.0f && arc0_e == half_pi) 3022 { 3023 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL 3024 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR 3025 } 3026 else 3027 { 3028 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL 3029 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR 3030 } 3031 if (p1.x > rect.Min.x + rounding) 3032 { 3033 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding); 3034 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding); 3035 const float x1 = ImMin(p1.x, rect.Max.x - rounding); 3036 if (arc1_b == arc1_e) 3037 { 3038 draw_list->PathLineTo(ImVec2(x1, p0.y)); 3039 draw_list->PathLineTo(ImVec2(x1, p1.y)); 3040 } 3041 else if (arc1_b == 0.0f && arc1_e == half_pi) 3042 { 3043 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR 3044 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR 3045 } 3046 else 3047 { 3048 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR 3049 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR 3050 } 3051 } 3052 draw_list->PathFillConvex(col); 3053} 3054 3055// FIXME: Rendering an ellipsis "..." is a surprisingly tricky problem for us... we cannot rely on font glyph having it, 3056// and regular dot are typically too wide. If we render a dot/shape ourselves it comes with the risk that it wouldn't match 3057// the boldness or positioning of what the font uses... 3058void ImGui::RenderPixelEllipsis(ImDrawList* draw_list, ImVec2 pos, int count, ImU32 col) 3059{ 3060 ImFont* font = draw_list->_Data->Font; 3061 const float font_scale = draw_list->_Data->FontSize / font->FontSize; 3062 pos.y += (float)(int)(font->DisplayOffset.y + font->Ascent * font_scale + 0.5f - 1.0f); 3063 for (int dot_n = 0; dot_n < count; dot_n++) 3064 draw_list->AddRectFilled(ImVec2(pos.x + dot_n * 2.0f, pos.y), ImVec2(pos.x + dot_n * 2.0f + 1.0f, pos.y + 1.0f), col); 3065} 3066 3067//----------------------------------------------------------------------------- 3068// [SECTION] Decompression code 3069//----------------------------------------------------------------------------- 3070// Compressed with stb_compress() then converted to a C array and encoded as base85. 3071// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file. 3072// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 3073// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h 3074//----------------------------------------------------------------------------- 3075 3076static unsigned int stb_decompress_length(const unsigned char *input) 3077{ 3078 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]; 3079} 3080 3081static unsigned char *stb__barrier_out_e, *stb__barrier_out_b; 3082static const unsigned char *stb__barrier_in_b; 3083static unsigned char *stb__dout; 3084static void stb__match(const unsigned char *data, unsigned int length) 3085{ 3086 // INVERSE of memmove... write each byte before copying the next... 3087 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 3088 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 3089 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; } 3090 while (length--) *stb__dout++ = *data++; 3091} 3092 3093static void stb__lit(const unsigned char *data, unsigned int length) 3094{ 3095 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 3096 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 3097 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; } 3098 memcpy(stb__dout, data, length); 3099 stb__dout += length; 3100} 3101 3102#define stb__in2(x) ((i[x] << 8) + i[(x)+1]) 3103#define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1)) 3104#define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1)) 3105 3106static const unsigned char *stb_decompress_token(const unsigned char *i) 3107{ 3108 if (*i >= 0x20) { // use fewer if's for cases that expand small 3109 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2; 3110 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3; 3111 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1); 3112 } else { // more ifs for cases that expand large, since overhead is amortized 3113 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4; 3114 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5; 3115 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1); 3116 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1); 3117 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5; 3118 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6; 3119 } 3120 return i; 3121} 3122 3123static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen) 3124{ 3125 const unsigned long ADLER_MOD = 65521; 3126 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16; 3127 unsigned long blocklen, i; 3128 3129 blocklen = buflen % 5552; 3130 while (buflen) { 3131 for (i=0; i + 7 < blocklen; i += 8) { 3132 s1 += buffer[0], s2 += s1; 3133 s1 += buffer[1], s2 += s1; 3134 s1 += buffer[2], s2 += s1; 3135 s1 += buffer[3], s2 += s1; 3136 s1 += buffer[4], s2 += s1; 3137 s1 += buffer[5], s2 += s1; 3138 s1 += buffer[6], s2 += s1; 3139 s1 += buffer[7], s2 += s1; 3140 3141 buffer += 8; 3142 } 3143 3144 for (; i < blocklen; ++i) 3145 s1 += *buffer++, s2 += s1; 3146 3147 s1 %= ADLER_MOD, s2 %= ADLER_MOD; 3148 buflen -= blocklen; 3149 blocklen = 5552; 3150 } 3151 return (unsigned int)(s2 << 16) + (unsigned int)s1; 3152} 3153 3154static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/) 3155{ 3156 unsigned int olen; 3157 if (stb__in4(0) != 0x57bC0000) return 0; 3158 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB 3159 olen = stb_decompress_length(i); 3160 stb__barrier_in_b = i; 3161 stb__barrier_out_e = output + olen; 3162 stb__barrier_out_b = output; 3163 i += 16; 3164 3165 stb__dout = output; 3166 for (;;) { 3167 const unsigned char *old_i = i; 3168 i = stb_decompress_token(i); 3169 if (i == old_i) { 3170 if (*i == 0x05 && i[1] == 0xfa) { 3171 IM_ASSERT(stb__dout == output + olen); 3172 if (stb__dout != output + olen) return 0; 3173 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2)) 3174 return 0; 3175 return olen; 3176 } else { 3177 IM_ASSERT(0); /* NOTREACHED */ 3178 return 0; 3179 } 3180 } 3181 IM_ASSERT(stb__dout <= output + olen); 3182 if (stb__dout > output + olen) 3183 return 0; 3184 } 3185} 3186 3187//----------------------------------------------------------------------------- 3188// [SECTION] Default font data (ProggyClean.ttf) 3189//----------------------------------------------------------------------------- 3190// ProggyClean.ttf 3191// Copyright (c) 2004, 2005 Tristan Grimmer 3192// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip) 3193// Download and more information at http://upperbounds.net 3194//----------------------------------------------------------------------------- 3195// File: 'ProggyClean.ttf' (41208 bytes) 3196// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding). 3197// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 3198//----------------------------------------------------------------------------- 3199static const char proggy_clean_ttf_compressed_data_base85[11980+1] = 3200 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/" 3201 "2*>]b(MC;$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#" 3202 "`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" 3203 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"iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO" 3276 "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#" 3277 ";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&>" 3278 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#" 3279 "d<F&#*;G##.GY##2Sl##6`($#: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" 3280 "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$C#+E6C#" 3281 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#" 3282 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#" 3283 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP" 3284 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp" 3285 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#"; 3286 3287static const char* GetDefaultCompressedFontDataTTFBase85() 3288{ 3289 return proggy_clean_ttf_compressed_data_base85; 3290} 3291