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goldberg_emulator/ImGui/imgui_draw.cpp
Nemirtingas d2a75db930 Moved colored implementation to their own functions 
To minimise source code modifications, colored input text has been moved to their own functions.
The ImFont is still modified tho.
2019-08-03 14:37:03 +02:00

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// dear imgui, v1.72 WIP
// (drawing and font code)
/*
Index of this file:
// [SECTION] STB libraries implementation
// [SECTION] Style functions
// [SECTION] ImDrawList
// [SECTION] ImDrawListSplitter
// [SECTION] ImDrawData
// [SECTION] Helpers ShadeVertsXXX functions
// [SECTION] ImFontConfig
// [SECTION] ImFontAtlas
// [SECTION] ImFontAtlas glyph ranges helpers
// [SECTION] ImFontGlyphRangesBuilder
// [SECTION] ImFont
// [SECTION] Internal Render Helpers
// [SECTION] Decompression code
// [SECTION] Default font data (ProggyClean.ttf)
*/
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#include "imgui.h"
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui_internal.h"
#include <stdio.h> // vsnprintf, sscanf, printf
#if !defined(alloca)
#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__) || defined(__SWITCH__)
#include <alloca.h> // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
#elif defined(_WIN32)
#include <malloc.h> // alloca
#if !defined(alloca)
#define alloca _alloca // for clang with MS Codegen
#endif
#else
#include <stdlib.h> // alloca
#endif
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
#pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
#pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference is.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
#if __has_warning("-Wzero-as-null-pointer-constant")
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning : zero as null pointer constant // some standard header variations use #define NULL 0
#endif
#if __has_warning("-Wcomma")
#pragma clang diagnostic ignored "-Wcomma" // warning : possible misuse of comma operator here //
#endif
#if __has_warning("-Wreserved-id-macro")
#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier //
#endif
#if __has_warning("-Wdouble-promotion")
#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.
#endif
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
#pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
#pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
#pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
#pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
#endif
//-------------------------------------------------------------------------
// [SECTION] STB libraries implementation
//-------------------------------------------------------------------------
// Compile time options:
//#define IMGUI_STB_NAMESPACE ImStb
//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
#ifdef IMGUI_STB_NAMESPACE
namespace IMGUI_STB_NAMESPACE
{
#endif
#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
#endif
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#pragma clang diagnostic ignored "-Wcast-qual" // warning : cast from 'const xxxx *' to 'xxx *' drops const qualifier //
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
#pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
#endif
#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
#define STBRP_STATIC
#define STBRP_ASSERT(x) IM_ASSERT(x)
#define STBRP_SORT ImQsort
#define STB_RECT_PACK_IMPLEMENTATION
#endif
#ifdef IMGUI_STB_RECT_PACK_FILENAME
#include IMGUI_STB_RECT_PACK_FILENAME
#else
#include "imstb_rectpack.h"
#endif
#endif
#ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
#define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
#define STBTT_free(x,u) ((void)(u), IM_FREE(x))
#define STBTT_assert(x) IM_ASSERT(x)
#define STBTT_fmod(x,y) ImFmod(x,y)
#define STBTT_sqrt(x) ImSqrt(x)
#define STBTT_pow(x,y) ImPow(x,y)
#define STBTT_fabs(x) ImFabs(x)
#define STBTT_ifloor(x) ((int)ImFloorStd(x))
#define STBTT_iceil(x) ((int)ImCeil(x))
#define STBTT_STATIC
#define STB_TRUETYPE_IMPLEMENTATION
#else
#define STBTT_DEF extern
#endif
#ifdef IMGUI_STB_TRUETYPE_FILENAME
#include IMGUI_STB_TRUETYPE_FILENAME
#else
#include "imstb_truetype.h"
#endif
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#if defined(_MSC_VER)
#pragma warning (pop)
#endif
#ifdef IMGUI_STB_NAMESPACE
} // namespace ImStb
using namespace IMGUI_STB_NAMESPACE;
#endif
//-----------------------------------------------------------------------------
// [SECTION] Style functions
//-----------------------------------------------------------------------------
void ImGui::StyleColorsDark(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
}
void ImGui::StyleColorsClassic(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
}
// Those light colors are better suited with a thicker font than the default one + FrameBorder
void ImGui::StyleColorsLight(ImGuiStyle* dst)
{
ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
ImVec4* colors = style->Colors;
colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f);
colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
}
//-----------------------------------------------------------------------------
// ImDrawList
//-----------------------------------------------------------------------------
ImDrawListSharedData::ImDrawListSharedData()
{
Font = NULL;
FontSize = 0.0f;
CurveTessellationTol = 0.0f;
ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
InitialFlags = ImDrawListFlags_None;
// Const data
for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
{
const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(CircleVtx12);
CircleVtx12[i] = ImVec2(ImCos(a), ImSin(a));
}
}
void ImDrawList::Clear()
{
CmdBuffer.resize(0);
IdxBuffer.resize(0);
VtxBuffer.resize(0);
Flags = _Data ? _Data->InitialFlags : ImDrawListFlags_None;
_VtxCurrentOffset = 0;
_VtxCurrentIdx = 0;
_VtxWritePtr = NULL;
_IdxWritePtr = NULL;
_ClipRectStack.resize(0);
_TextureIdStack.resize(0);
_Path.resize(0);
_Splitter.Clear();
}
void ImDrawList::ClearFreeMemory()
{
CmdBuffer.clear();
IdxBuffer.clear();
VtxBuffer.clear();
_VtxCurrentIdx = 0;
_VtxWritePtr = NULL;
_IdxWritePtr = NULL;
_ClipRectStack.clear();
_TextureIdStack.clear();
_Path.clear();
_Splitter.ClearFreeMemory();
}
ImDrawList* ImDrawList::CloneOutput() const
{
ImDrawList* dst = IM_NEW(ImDrawList(_Data));
dst->CmdBuffer = CmdBuffer;
dst->IdxBuffer = IdxBuffer;
dst->VtxBuffer = VtxBuffer;
dst->Flags = Flags;
return dst;
}
// Using macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug builds
#define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : _Data->ClipRectFullscreen)
#define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : (ImTextureID)NULL)
void ImDrawList::AddDrawCmd()
{
ImDrawCmd draw_cmd;
draw_cmd.ClipRect = GetCurrentClipRect();
draw_cmd.TextureId = GetCurrentTextureId();
draw_cmd.VtxOffset = _VtxCurrentOffset;
draw_cmd.IdxOffset = IdxBuffer.Size;
IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
CmdBuffer.push_back(draw_cmd);
}
void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
{
ImDrawCmd* current_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
if (!current_cmd || current_cmd->ElemCount != 0 || current_cmd->UserCallback != NULL)
{
AddDrawCmd();
current_cmd = &CmdBuffer.back();
}
current_cmd->UserCallback = callback;
current_cmd->UserCallbackData = callback_data;
AddDrawCmd(); // Force a new command after us (see comment below)
}
// 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.
// 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.
void ImDrawList::UpdateClipRect()
{
// If current command is used with different settings we need to add a new command
const ImVec4 curr_clip_rect = GetCurrentClipRect();
ImDrawCmd* curr_cmd = CmdBuffer.Size > 0 ? &CmdBuffer.Data[CmdBuffer.Size-1] : NULL;
if (!curr_cmd || (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &curr_clip_rect, sizeof(ImVec4)) != 0) || curr_cmd->UserCallback != NULL)
{
AddDrawCmd();
return;
}
// Try to merge with previous command if it matches, else use current command
ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
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)
CmdBuffer.pop_back();
else
curr_cmd->ClipRect = curr_clip_rect;
}
void ImDrawList::UpdateTextureID()
{
// If current command is used with different settings we need to add a new command
const ImTextureID curr_texture_id = GetCurrentTextureId();
ImDrawCmd* curr_cmd = CmdBuffer.Size ? &CmdBuffer.back() : NULL;
if (!curr_cmd || (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != curr_texture_id) || curr_cmd->UserCallback != NULL)
{
AddDrawCmd();
return;
}
// Try to merge with previous command if it matches, else use current command
ImDrawCmd* prev_cmd = CmdBuffer.Size > 1 ? curr_cmd - 1 : NULL;
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)
CmdBuffer.pop_back();
else
curr_cmd->TextureId = curr_texture_id;
}
#undef GetCurrentClipRect
#undef GetCurrentTextureId
// 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)
void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
{
ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
if (intersect_with_current_clip_rect && _ClipRectStack.Size)
{
ImVec4 current = _ClipRectStack.Data[_ClipRectStack.Size-1];
if (cr.x < current.x) cr.x = current.x;
if (cr.y < current.y) cr.y = current.y;
if (cr.z > current.z) cr.z = current.z;
if (cr.w > current.w) cr.w = current.w;
}
cr.z = ImMax(cr.x, cr.z);
cr.w = ImMax(cr.y, cr.w);
_ClipRectStack.push_back(cr);
UpdateClipRect();
}
void ImDrawList::PushClipRectFullScreen()
{
PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
}
void ImDrawList::PopClipRect()
{
IM_ASSERT(_ClipRectStack.Size > 0);
_ClipRectStack.pop_back();
UpdateClipRect();
}
void ImDrawList::PushTextureID(ImTextureID texture_id)
{
_TextureIdStack.push_back(texture_id);
UpdateTextureID();
}
void ImDrawList::PopTextureID()
{
IM_ASSERT(_TextureIdStack.Size > 0);
_TextureIdStack.pop_back();
UpdateTextureID();
}
// NB: this can be called with negative count for removing primitives (as long as the result does not underflow)
void ImDrawList::PrimReserve(int idx_count, int vtx_count)
{
// Large mesh support (when enabled)
if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
{
_VtxCurrentOffset = VtxBuffer.Size;
_VtxCurrentIdx = 0;
AddDrawCmd();
}
ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1];
draw_cmd.ElemCount += idx_count;
int vtx_buffer_old_size = VtxBuffer.Size;
VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
_VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
int idx_buffer_old_size = IdxBuffer.Size;
IdxBuffer.resize(idx_buffer_old_size + idx_count);
_IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
}
// Fully unrolled with inline call to keep our debug builds decently fast.
void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
{
ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
{
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);
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
{
ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
_IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
_IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
_VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_VtxCurrentIdx += 4;
_IdxWritePtr += 6;
}
// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superflous function calls to optimize debug/non-inlined builds.
// Those macros expects l-values.
#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; } }
#define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 < 0.5f) d2 = 0.5f; float inv_lensq = 1.0f / d2; VX *= inv_lensq; VY *= inv_lensq; }
// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness)
{
if (points_count < 2)
return;
const ImVec2 uv = _Data->TexUvWhitePixel;
int count = points_count;
if (!closed)
count = points_count-1;
const bool thick_line = thickness > 1.0f;
if (Flags & ImDrawListFlags_AntiAliasedLines)
{
// Anti-aliased stroke
const float AA_SIZE = 1.0f;
const ImU32 col_trans = col & ~IM_COL32_A_MASK;
const int idx_count = thick_line ? count*18 : count*12;
const int vtx_count = thick_line ? points_count*4 : points_count*3;
PrimReserve(idx_count, vtx_count);
// Temporary buffer
ImVec2* temp_normals = (ImVec2*)alloca(points_count * (thick_line ? 5 : 3) * sizeof(ImVec2)); //-V630
ImVec2* temp_points = temp_normals + points_count;
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1+1) == points_count ? 0 : i1+1;
float dx = points[i2].x - points[i1].x;
float dy = points[i2].y - points[i1].y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
temp_normals[i1].x = dy;
temp_normals[i1].y = -dx;
}
if (!closed)
temp_normals[points_count-1] = temp_normals[points_count-2];
if (!thick_line)
{
if (!closed)
{
temp_points[0] = points[0] + temp_normals[0] * AA_SIZE;
temp_points[1] = points[0] - temp_normals[0] * AA_SIZE;
temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * AA_SIZE;
temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * AA_SIZE;
}
// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
unsigned int idx1 = _VtxCurrentIdx;
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1+1) == points_count ? 0 : i1+1;
unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+3;
// Average normals
float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y)
dm_x *= AA_SIZE;
dm_y *= AA_SIZE;
// Add temporary vertexes
ImVec2* out_vtx = &temp_points[i2*2];
out_vtx[0].x = points[i2].x + dm_x;
out_vtx[0].y = points[i2].y + dm_y;
out_vtx[1].x = points[i2].x - dm_x;
out_vtx[1].y = points[i2].y - dm_y;
// Add indexes
_IdxWritePtr[0] = (ImDrawIdx)(idx2+0); _IdxWritePtr[1] = (ImDrawIdx)(idx1+0); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
_IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+0);
_IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
_IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10]= (ImDrawIdx)(idx2+0); _IdxWritePtr[11]= (ImDrawIdx)(idx2+1);
_IdxWritePtr += 12;
idx1 = idx2;
}
// Add vertexes
for (int i = 0; i < points_count; i++)
{
_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos = temp_points[i*2+0]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;
_VtxWritePtr[2].pos = temp_points[i*2+1]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col_trans;
_VtxWritePtr += 3;
}
}
else
{
const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
if (!closed)
{
temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
temp_points[(points_count-1)*4+0] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
temp_points[(points_count-1)*4+1] = points[points_count-1] + temp_normals[points_count-1] * (half_inner_thickness);
temp_points[(points_count-1)*4+2] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness);
temp_points[(points_count-1)*4+3] = points[points_count-1] - temp_normals[points_count-1] * (half_inner_thickness + AA_SIZE);
}
// FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
unsigned int idx1 = _VtxCurrentIdx;
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1+1) == points_count ? 0 : i1+1;
unsigned int idx2 = (i1+1) == points_count ? _VtxCurrentIdx : idx1+4;
// Average normals
float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y);
float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
float dm_in_x = dm_x * half_inner_thickness;
float dm_in_y = dm_y * half_inner_thickness;
// Add temporary vertexes
ImVec2* out_vtx = &temp_points[i2*4];
out_vtx[0].x = points[i2].x + dm_out_x;
out_vtx[0].y = points[i2].y + dm_out_y;
out_vtx[1].x = points[i2].x + dm_in_x;
out_vtx[1].y = points[i2].y + dm_in_y;
out_vtx[2].x = points[i2].x - dm_in_x;
out_vtx[2].y = points[i2].y - dm_in_y;
out_vtx[3].x = points[i2].x - dm_out_x;
out_vtx[3].y = points[i2].y - dm_out_y;
// Add indexes
_IdxWritePtr[0] = (ImDrawIdx)(idx2+1); _IdxWritePtr[1] = (ImDrawIdx)(idx1+1); _IdxWritePtr[2] = (ImDrawIdx)(idx1+2);
_IdxWritePtr[3] = (ImDrawIdx)(idx1+2); _IdxWritePtr[4] = (ImDrawIdx)(idx2+2); _IdxWritePtr[5] = (ImDrawIdx)(idx2+1);
_IdxWritePtr[6] = (ImDrawIdx)(idx2+1); _IdxWritePtr[7] = (ImDrawIdx)(idx1+1); _IdxWritePtr[8] = (ImDrawIdx)(idx1+0);
_IdxWritePtr[9] = (ImDrawIdx)(idx1+0); _IdxWritePtr[10] = (ImDrawIdx)(idx2+0); _IdxWritePtr[11] = (ImDrawIdx)(idx2+1);
_IdxWritePtr[12] = (ImDrawIdx)(idx2+2); _IdxWritePtr[13] = (ImDrawIdx)(idx1+2); _IdxWritePtr[14] = (ImDrawIdx)(idx1+3);
_IdxWritePtr[15] = (ImDrawIdx)(idx1+3); _IdxWritePtr[16] = (ImDrawIdx)(idx2+3); _IdxWritePtr[17] = (ImDrawIdx)(idx2+2);
_IdxWritePtr += 18;
idx1 = idx2;
}
// Add vertexes
for (int i = 0; i < points_count; i++)
{
_VtxWritePtr[0].pos = temp_points[i*4+0]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col_trans;
_VtxWritePtr[1].pos = temp_points[i*4+1]; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos = temp_points[i*4+2]; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos = temp_points[i*4+3]; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col_trans;
_VtxWritePtr += 4;
}
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
else
{
// Non Anti-aliased Stroke
const int idx_count = count*6;
const int vtx_count = count*4; // FIXME-OPT: Not sharing edges
PrimReserve(idx_count, vtx_count);
for (int i1 = 0; i1 < count; i1++)
{
const int i2 = (i1+1) == points_count ? 0 : i1+1;
const ImVec2& p1 = points[i1];
const ImVec2& p2 = points[i2];
float dx = p2.x - p1.x;
float dy = p2.y - p1.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
dx *= (thickness * 0.5f);
dy *= (thickness * 0.5f);
_VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
_VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
_VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
_VtxWritePtr += 4;
_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+2);
_IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx+2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx+3);
_IdxWritePtr += 6;
_VtxCurrentIdx += 4;
}
}
}
// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
{
if (points_count < 3)
return;
const ImVec2 uv = _Data->TexUvWhitePixel;
if (Flags & ImDrawListFlags_AntiAliasedFill)
{
// Anti-aliased Fill
const float AA_SIZE = 1.0f;
const ImU32 col_trans = col & ~IM_COL32_A_MASK;
const int idx_count = (points_count-2)*3 + points_count*6;
const int vtx_count = (points_count*2);
PrimReserve(idx_count, vtx_count);
// Add indexes for fill
unsigned int vtx_inner_idx = _VtxCurrentIdx;
unsigned int vtx_outer_idx = _VtxCurrentIdx+1;
for (int i = 2; i < points_count; i++)
{
_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+((i-1)<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx+(i<<1));
_IdxWritePtr += 3;
}
// Compute normals
ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
{
const ImVec2& p0 = points[i0];
const ImVec2& p1 = points[i1];
float dx = p1.x - p0.x;
float dy = p1.y - p0.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
temp_normals[i0].x = dy;
temp_normals[i0].y = -dx;
}
for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
{
// Average normals
const ImVec2& n0 = temp_normals[i0];
const ImVec2& n1 = temp_normals[i1];
float dm_x = (n0.x + n1.x) * 0.5f;
float dm_y = (n0.y + n1.y) * 0.5f;
IM_FIXNORMAL2F(dm_x, dm_y);
dm_x *= AA_SIZE * 0.5f;
dm_y *= AA_SIZE * 0.5f;
// Add vertices
_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
_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
_VtxWritePtr += 2;
// Add indexes for fringes
_IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx+(i1<<1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx+(i0<<1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx+(i0<<1));
_IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx+(i0<<1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx+(i1<<1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx+(i1<<1));
_IdxWritePtr += 6;
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
else
{
// Non Anti-aliased Fill
const int idx_count = (points_count-2)*3;
const int vtx_count = points_count;
PrimReserve(idx_count, vtx_count);
for (int i = 0; i < vtx_count; i++)
{
_VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
_VtxWritePtr++;
}
for (int i = 2; i < points_count; i++)
{
_IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx+i-1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx+i);
_IdxWritePtr += 3;
}
_VtxCurrentIdx += (ImDrawIdx)vtx_count;
}
}
void ImDrawList::PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12)
{
if (radius == 0.0f || a_min_of_12 > a_max_of_12)
{
_Path.push_back(centre);
return;
}
_Path.reserve(_Path.Size + (a_max_of_12 - a_min_of_12 + 1));
for (int a = a_min_of_12; a <= a_max_of_12; a++)
{
const ImVec2& c = _Data->CircleVtx12[a % IM_ARRAYSIZE(_Data->CircleVtx12)];
_Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
}
}
void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments)
{
if (radius == 0.0f)
{
_Path.push_back(centre);
return;
}
// Note that we are adding a point at both a_min and a_max.
// If you are trying to draw a full closed circle you don't want the overlapping points!
_Path.reserve(_Path.Size + (num_segments + 1));
for (int i = 0; i <= num_segments; i++)
{
const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
_Path.push_back(ImVec2(centre.x + ImCos(a) * radius, centre.y + ImSin(a) * radius));
}
}
static void PathBezierToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
{
float dx = x4 - x1;
float dy = y4 - y1;
float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
d2 = (d2 >= 0) ? d2 : -d2;
d3 = (d3 >= 0) ? d3 : -d3;
if ((d2+d3) * (d2+d3) < tess_tol * (dx*dx + dy*dy))
{
path->push_back(ImVec2(x4, y4));
}
else if (level < 10)
{
float x12 = (x1+x2)*0.5f, y12 = (y1+y2)*0.5f;
float x23 = (x2+x3)*0.5f, y23 = (y2+y3)*0.5f;
float x34 = (x3+x4)*0.5f, y34 = (y3+y4)*0.5f;
float x123 = (x12+x23)*0.5f, y123 = (y12+y23)*0.5f;
float x234 = (x23+x34)*0.5f, y234 = (y23+y34)*0.5f;
float x1234 = (x123+x234)*0.5f, y1234 = (y123+y234)*0.5f;
PathBezierToCasteljau(path, x1,y1, x12,y12, x123,y123, x1234,y1234, tess_tol, level+1);
PathBezierToCasteljau(path, x1234,y1234, x234,y234, x34,y34, x4,y4, tess_tol, level+1);
}
}
void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
{
ImVec2 p1 = _Path.back();
if (num_segments == 0)
{
// Auto-tessellated
PathBezierToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0);
}
else
{
float t_step = 1.0f / (float)num_segments;
for (int i_step = 1; i_step <= num_segments; i_step++)
{
float t = t_step * i_step;
float u = 1.0f - t;
float w1 = u*u*u;
float w2 = 3*u*u*t;
float w3 = 3*u*t*t;
float w4 = t*t*t;
_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));
}
}
}
void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
{
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);
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);
if (rounding <= 0.0f || rounding_corners == 0)
{
PathLineTo(a);
PathLineTo(ImVec2(b.x, a.y));
PathLineTo(b);
PathLineTo(ImVec2(a.x, b.y));
}
else
{
const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
}
}
void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(a + ImVec2(0.5f,0.5f));
PathLineTo(b + ImVec2(0.5f,0.5f));
PathStroke(col, false, thickness);
}
// a: upper-left, b: lower-right. we don't render 1 px sized rectangles properly.
void ImDrawList::AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (Flags & ImDrawListFlags_AntiAliasedLines)
PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.50f,0.50f), rounding, rounding_corners_flags);
else
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.
PathStroke(col, true, thickness);
}
void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners_flags)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (rounding > 0.0f)
{
PathRect(a, b, rounding, rounding_corners_flags);
PathFillConvex(col);
}
else
{
PrimReserve(6, 4);
PrimRect(a, b, col);
}
}
void ImDrawList::AddRectFilledMultiColor(const ImVec2& a, const ImVec2& c, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
{
if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
return;
const ImVec2 uv = _Data->TexUvWhitePixel;
PrimReserve(6, 4);
PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2));
PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx+3));
PrimWriteVtx(a, uv, col_upr_left);
PrimWriteVtx(ImVec2(c.x, a.y), uv, col_upr_right);
PrimWriteVtx(c, uv, col_bot_right);
PrimWriteVtx(ImVec2(a.x, c.y), uv, col_bot_left);
}
void ImDrawList::AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(a);
PathLineTo(b);
PathLineTo(c);
PathLineTo(d);
PathStroke(col, true, thickness);
}
void ImDrawList::AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(a);
PathLineTo(b);
PathLineTo(c);
PathLineTo(d);
PathFillConvex(col);
}
void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(a);
PathLineTo(b);
PathLineTo(c);
PathStroke(col, true, thickness);
}
void ImDrawList::AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(a);
PathLineTo(b);
PathLineTo(c);
PathFillConvex(col);
}
void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
{
if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
return;
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(centre, radius-0.5f, 0.0f, a_max, num_segments - 1);
PathStroke(col, true, thickness);
}
void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
return;
// Because we are filling a closed shape we remove 1 from the count of segments/points
const float a_max = IM_PI*2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
PathArcTo(centre, radius, 0.0f, a_max, num_segments - 1);
PathFillConvex(col);
}
void ImDrawList::AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
PathLineTo(pos0);
PathBezierCurveTo(cp0, cp1, pos1, num_segments);
PathStroke(col, false, thickness);
}
void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (text_end == NULL)
text_end = text_begin + strlen(text_begin);
if (text_begin == text_end)
return;
// Pull default font/size from the shared ImDrawListSharedData instance
if (font == NULL)
font = _Data->Font;
if (font_size == 0.0f)
font_size = _Data->FontSize;
IM_ASSERT(font->ContainerAtlas->TexID == _TextureIdStack.back()); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
ImVec4 clip_rect = _ClipRectStack.back();
if (cpu_fine_clip_rect)
{
clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
}
font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
}
void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
{
AddText(NULL, 0.0f, pos, col, text_begin, text_end);
}
void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
if (push_texture_id)
PushTextureID(user_texture_id);
PrimReserve(6, 4);
PrimRectUV(a, b, uv_a, uv_b, col);
if (push_texture_id)
PopTextureID();
}
void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
if (push_texture_id)
PushTextureID(user_texture_id);
PrimReserve(6, 4);
PrimQuadUV(a, b, c, d, uv_a, uv_b, uv_c, uv_d, col);
if (push_texture_id)
PopTextureID();
}
void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners)
{
if ((col & IM_COL32_A_MASK) == 0)
return;
if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
{
AddImage(user_texture_id, a, b, uv_a, uv_b, col);
return;
}
const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
if (push_texture_id)
PushTextureID(user_texture_id);
int vert_start_idx = VtxBuffer.Size;
PathRect(a, b, rounding, rounding_corners);
PathFillConvex(col);
int vert_end_idx = VtxBuffer.Size;
ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, a, b, uv_a, uv_b, true);
if (push_texture_id)
PopTextureID();
}
//-----------------------------------------------------------------------------
// ImDrawListSplitter
//-----------------------------------------------------------------------------
// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
//-----------------------------------------------------------------------------
void ImDrawListSplitter::ClearFreeMemory()
{
for (int i = 0; i < _Channels.Size; i++)
{
if (i == _Current)
memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
_Channels[i]._CmdBuffer.clear();
_Channels[i]._IdxBuffer.clear();
}
_Current = 0;
_Count = 1;
_Channels.clear();
}
void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
{
IM_ASSERT(_Current == 0 && _Count <= 1);
int old_channels_count = _Channels.Size;
if (old_channels_count < channels_count)
_Channels.resize(channels_count);
_Count = channels_count;
// Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
// 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.
// When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
memset(&_Channels[0], 0, sizeof(ImDrawChannel));
for (int i = 1; i < channels_count; i++)
{
if (i >= old_channels_count)
{
IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
}
else
{
_Channels[i]._CmdBuffer.resize(0);
_Channels[i]._IdxBuffer.resize(0);
}
if (_Channels[i]._CmdBuffer.Size == 0)
{
ImDrawCmd draw_cmd;
draw_cmd.ClipRect = draw_list->_ClipRectStack.back();
draw_cmd.TextureId = draw_list->_TextureIdStack.back();
_Channels[i]._CmdBuffer.push_back(draw_cmd);
}
}
}
static inline bool CanMergeDrawCommands(ImDrawCmd* a, ImDrawCmd* b)
{
return memcmp(&a->ClipRect, &b->ClipRect, sizeof(a->ClipRect)) == 0 && a->TextureId == b->TextureId && a->VtxOffset == b->VtxOffset && !a->UserCallback && !b->UserCallback;
}
void ImDrawListSplitter::Merge(ImDrawList* draw_list)
{
// 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.
if (_Count <= 1)
return;
SetCurrentChannel(draw_list, 0);
if (draw_list->CmdBuffer.Size != 0 && draw_list->CmdBuffer.back().ElemCount == 0)
draw_list->CmdBuffer.pop_back();
// Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
int new_cmd_buffer_count = 0;
int new_idx_buffer_count = 0;
ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
for (int i = 1; i < _Count; i++)
{
ImDrawChannel& ch = _Channels[i];
if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
ch._CmdBuffer.pop_back();
if (ch._CmdBuffer.Size > 0 && last_cmd != NULL && CanMergeDrawCommands(last_cmd, &ch._CmdBuffer[0]))
{
// Merge previous channel last draw command with current channel first draw command if matching.
last_cmd->ElemCount += ch._CmdBuffer[0].ElemCount;
idx_offset += ch._CmdBuffer[0].ElemCount;
ch._CmdBuffer.erase(ch._CmdBuffer.Data);
}
if (ch._CmdBuffer.Size > 0)
last_cmd = &ch._CmdBuffer.back();
new_cmd_buffer_count += ch._CmdBuffer.Size;
new_idx_buffer_count += ch._IdxBuffer.Size;
for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
{
ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
}
}
draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
// Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
for (int i = 1; i < _Count; i++)
{
ImDrawChannel& ch = _Channels[i];
if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
}
draw_list->_IdxWritePtr = idx_write;
draw_list->UpdateClipRect(); // We call this instead of AddDrawCmd(), so that empty channels won't produce an extra draw call.
_Count = 1;
}
void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
{
IM_ASSERT(idx >= 0 && idx < _Count);
if (_Current == idx)
return;
// Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
_Current = idx;
memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
}
//-----------------------------------------------------------------------------
// [SECTION] ImDrawData
//-----------------------------------------------------------------------------
// 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!
void ImDrawData::DeIndexAllBuffers()
{
ImVector<ImDrawVert> new_vtx_buffer;
TotalVtxCount = TotalIdxCount = 0;
for (int i = 0; i < CmdListsCount; i++)
{
ImDrawList* cmd_list = CmdLists[i];
if (cmd_list->IdxBuffer.empty())
continue;
new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
cmd_list->VtxBuffer.swap(new_vtx_buffer);
cmd_list->IdxBuffer.resize(0);
TotalVtxCount += cmd_list->VtxBuffer.Size;
}
}
// Helper to scale the ClipRect field of each ImDrawCmd.
// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
// or if there is a difference between your window resolution and framebuffer resolution.
void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
{
for (int i = 0; i < CmdListsCount; i++)
{
ImDrawList* cmd_list = CmdLists[i];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
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);
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] Helpers ShadeVertsXXX functions
//-----------------------------------------------------------------------------
// Generic linear color gradient, write to RGB fields, leave A untouched.
void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
{
ImVec2 gradient_extent = gradient_p1 - gradient_p0;
float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
{
float d = ImDot(vert->pos - gradient_p0, gradient_extent);
float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
int r = ImLerp((int)(col0 >> IM_COL32_R_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_R_SHIFT) & 0xFF, t);
int g = ImLerp((int)(col0 >> IM_COL32_G_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_G_SHIFT) & 0xFF, t);
int b = ImLerp((int)(col0 >> IM_COL32_B_SHIFT) & 0xFF, (int)(col1 >> IM_COL32_B_SHIFT) & 0xFF, t);
vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
}
}
// Distribute UV over (a, b) rectangle
void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
{
const ImVec2 size = b - a;
const ImVec2 uv_size = uv_b - uv_a;
const ImVec2 scale = ImVec2(
size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
if (clamp)
{
const ImVec2 min = ImMin(uv_a, uv_b);
const ImVec2 max = ImMax(uv_a, uv_b);
for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
}
else
{
for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
}
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontConfig
//-----------------------------------------------------------------------------
ImFontConfig::ImFontConfig()
{
FontData = NULL;
FontDataSize = 0;
FontDataOwnedByAtlas = true;
FontNo = 0;
SizePixels = 0.0f;
OversampleH = 3; // FIXME: 2 may be a better default?
OversampleV = 1;
PixelSnapH = false;
GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
GlyphOffset = ImVec2(0.0f, 0.0f);
GlyphRanges = NULL;
GlyphMinAdvanceX = 0.0f;
GlyphMaxAdvanceX = FLT_MAX;
MergeMode = false;
RasterizerFlags = 0x00;
RasterizerMultiply = 1.0f;
memset(Name, 0, sizeof(Name));
DstFont = NULL;
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontAtlas
//-----------------------------------------------------------------------------
// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
// The white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
const int FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF = 108;
const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
const unsigned int FONT_ATLAS_DEFAULT_TEX_DATA_ID = 0x80000000;
static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
{
"..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX "
"..- -X.....X- X.X - X.X -X.....X - X.....X- X..X "
"--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X "
"X - X.X - X.....X - X.....X -X...X - X...X- X..X "
"XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X "
"X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX "
"X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX "
"X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX "
"X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X "
"X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X"
"X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X"
"X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X"
"X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X"
"X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X"
"X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X"
"X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X"
"X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X "
"X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X "
"X.X X..X - -X.......X- X.......X - XX XX - - X..........X "
"XX X..X - - X.....X - X.....X - X.X X.X - - X........X "
" X..X - X...X - X...X - X..X X..X - - X........X "
" XX - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX "
"------------ - X - X -X.....................X- ------------------"
" ----------------------------------- X...XXXXXXXXXXXXX...X - "
" - X..X X..X - "
" - X.X X.X - "
" - XX XX - "
};
static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
{
// Pos ........ Size ......... Offset ......
{ ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
{ ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
{ ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
{ ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
{ ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
{ ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
{ ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
{ ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
};
ImFontAtlas::ImFontAtlas()
{
Locked = false;
Flags = ImFontAtlasFlags_None;
TexID = (ImTextureID)NULL;
TexDesiredWidth = 0;
TexGlyphPadding = 1;
TexPixelsAlpha8 = NULL;
TexPixelsRGBA32 = NULL;
TexWidth = TexHeight = 0;
TexUvScale = ImVec2(0.0f, 0.0f);
TexUvWhitePixel = ImVec2(0.0f, 0.0f);
for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
CustomRectIds[n] = -1;
}
ImFontAtlas::~ImFontAtlas()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
Clear();
}
void ImFontAtlas::ClearInputData()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
for (int i = 0; i < ConfigData.Size; i++)
if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
{
IM_FREE(ConfigData[i].FontData);
ConfigData[i].FontData = NULL;
}
// When clearing this we lose access to the font name and other information used to build the font.
for (int i = 0; i < Fonts.Size; i++)
if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
{
Fonts[i]->ConfigData = NULL;
Fonts[i]->ConfigDataCount = 0;
}
ConfigData.clear();
CustomRects.clear();
for (int n = 0; n < IM_ARRAYSIZE(CustomRectIds); n++)
CustomRectIds[n] = -1;
}
void ImFontAtlas::ClearTexData()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
if (TexPixelsAlpha8)
IM_FREE(TexPixelsAlpha8);
if (TexPixelsRGBA32)
IM_FREE(TexPixelsRGBA32);
TexPixelsAlpha8 = NULL;
TexPixelsRGBA32 = NULL;
}
void ImFontAtlas::ClearFonts()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
for (int i = 0; i < Fonts.Size; i++)
IM_DELETE(Fonts[i]);
Fonts.clear();
}
void ImFontAtlas::Clear()
{
ClearInputData();
ClearTexData();
ClearFonts();
}
void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
{
// Build atlas on demand
if (TexPixelsAlpha8 == NULL)
{
if (ConfigData.empty())
AddFontDefault();
Build();
}
*out_pixels = TexPixelsAlpha8;
if (out_width) *out_width = TexWidth;
if (out_height) *out_height = TexHeight;
if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
}
void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
{
// Convert to RGBA32 format on demand
// Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
if (!TexPixelsRGBA32)
{
unsigned char* pixels = NULL;
GetTexDataAsAlpha8(&pixels, NULL, NULL);
if (pixels)
{
TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
const unsigned char* src = pixels;
unsigned int* dst = TexPixelsRGBA32;
for (int n = TexWidth * TexHeight; n > 0; n--)
*dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
}
}
*out_pixels = (unsigned char*)TexPixelsRGBA32;
if (out_width) *out_width = TexWidth;
if (out_height) *out_height = TexHeight;
if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
}
ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
IM_ASSERT(font_cfg->SizePixels > 0.0f);
// Create new font
if (!font_cfg->MergeMode)
Fonts.push_back(IM_NEW(ImFont));
else
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.
ConfigData.push_back(*font_cfg);
ImFontConfig& new_font_cfg = ConfigData.back();
if (new_font_cfg.DstFont == NULL)
new_font_cfg.DstFont = Fonts.back();
if (!new_font_cfg.FontDataOwnedByAtlas)
{
new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
new_font_cfg.FontDataOwnedByAtlas = true;
memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
}
// Invalidate texture
ClearTexData();
return new_font_cfg.DstFont;
}
// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
static unsigned int stb_decompress_length(const unsigned char *input);
static unsigned int stb_decompress(unsigned char *output, const unsigned char *input, unsigned int length);
static const char* GetDefaultCompressedFontDataTTFBase85();
static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
static void Decode85(const unsigned char* src, unsigned char* dst)
{
while (*src)
{
unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4]))));
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.
src += 5;
dst += 4;
}
}
// Load embedded ProggyClean.ttf at size 13, disable oversampling
ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
{
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
if (!font_cfg_template)
{
font_cfg.OversampleH = font_cfg.OversampleV = 1;
font_cfg.PixelSnapH = true;
}
if (font_cfg.SizePixels <= 0.0f)
font_cfg.SizePixels = 13.0f * 1.0f;
if (font_cfg.Name[0] == '\0')
ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
font->DisplayOffset.y = 1.0f;
return font;
}
ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
size_t data_size = 0;
void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
if (!data)
{
IM_ASSERT(0); // Could not load file.
return NULL;
}
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
if (font_cfg.Name[0] == '\0')
{
// Store a short copy of filename into into the font name for convenience
const char* p;
for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
}
return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
}
// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontData = ttf_data;
font_cfg.FontDataSize = ttf_size;
font_cfg.SizePixels = size_pixels;
if (glyph_ranges)
font_cfg.GlyphRanges = glyph_ranges;
return AddFont(&font_cfg);
}
ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{
const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
unsigned char* buf_decompressed_data = (unsigned char *)IM_ALLOC(buf_decompressed_size);
stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontDataOwnedByAtlas = true;
return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
}
ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
{
int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
IM_FREE(compressed_ttf);
return font;
}
int ImFontAtlas::AddCustomRectRegular(unsigned int id, int width, int height)
{
IM_ASSERT(id >= 0x10000);
IM_ASSERT(width > 0 && width <= 0xFFFF);
IM_ASSERT(height > 0 && height <= 0xFFFF);
ImFontAtlasCustomRect r;
r.ID = id;
r.Width = (unsigned short)width;
r.Height = (unsigned short)height;
CustomRects.push_back(r);
return CustomRects.Size - 1; // Return index
}
int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
{
IM_ASSERT(font != NULL);
IM_ASSERT(width > 0 && width <= 0xFFFF);
IM_ASSERT(height > 0 && height <= 0xFFFF);
ImFontAtlasCustomRect r;
r.ID = id;
r.Width = (unsigned short)width;
r.Height = (unsigned short)height;
r.GlyphAdvanceX = advance_x;
r.GlyphOffset = offset;
r.Font = font;
CustomRects.push_back(r);
return CustomRects.Size - 1; // Return index
}
void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max)
{
IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
*out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
*out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
}
bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
{
if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
return false;
if (Flags & ImFontAtlasFlags_NoMouseCursors)
return false;
IM_ASSERT(CustomRectIds[0] != -1);
ImFontAtlasCustomRect& r = CustomRects[CustomRectIds[0]];
IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r.X, (float)r.Y);
ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
*out_size = size;
*out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
out_uv_border[0] = (pos) * TexUvScale;
out_uv_border[1] = (pos + size) * TexUvScale;
pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
out_uv_fill[0] = (pos) * TexUvScale;
out_uv_fill[1] = (pos + size) * TexUvScale;
return true;
}
bool ImFontAtlas::Build()
{
IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
return ImFontAtlasBuildWithStbTruetype(this);
}
void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
{
for (unsigned int i = 0; i < 256; i++)
{
unsigned int value = (unsigned int)(i * in_brighten_factor);
out_table[i] = value > 255 ? 255 : (value & 0xFF);
}
}
void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
{
unsigned char* data = pixels + x + y * stride;
for (int j = h; j > 0; j--, data += stride)
for (int i = 0; i < w; i++)
data[i] = table[data[i]];
}
// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
struct ImFontBuildSrcData
{
stbtt_fontinfo FontInfo;
stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
stbtt_packedchar* PackedChars; // Output glyphs
const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
int GlyphsHighest; // Highest requested codepoint
int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
ImBoolVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsMap)
};
// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
struct ImFontBuildDstData
{
int SrcCount; // Number of source fonts targeting this destination font.
int GlyphsHighest;
int GlyphsCount;
ImBoolVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
};
static void UnpackBoolVectorToFlatIndexList(const ImBoolVector* in, ImVector<int>* out)
{
IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
const int* it_begin = in->Storage.begin();
const int* it_end = in->Storage.end();
for (const int* it = it_begin; it < it_end; it++)
if (int entries_32 = *it)
for (int bit_n = 0; bit_n < 32; bit_n++)
if (entries_32 & (1u << bit_n))
out->push_back((int)((it - it_begin) << 5) + bit_n);
}
bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
{
IM_ASSERT(atlas->ConfigData.Size > 0);
ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
// Clear atlas
atlas->TexID = (ImTextureID)NULL;
atlas->TexWidth = atlas->TexHeight = 0;
atlas->TexUvScale = ImVec2(0.0f, 0.0f);
atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
atlas->ClearTexData();
// Temporary storage for building
ImVector<ImFontBuildSrcData> src_tmp_array;
ImVector<ImFontBuildDstData> dst_tmp_array;
src_tmp_array.resize(atlas->ConfigData.Size);
dst_tmp_array.resize(atlas->Fonts.Size);
memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
// 1. Initialize font loading structure, check font data validity
for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
ImFontConfig& cfg = atlas->ConfigData[src_i];
IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
// Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
src_tmp.DstIndex = -1;
for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
if (cfg.DstFont == atlas->Fonts[output_i])
src_tmp.DstIndex = output_i;
IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
if (src_tmp.DstIndex == -1)
return false;
// Initialize helper structure for font loading and verify that the TTF/OTF data is correct
const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
return false;
// Measure highest codepoints
ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
dst_tmp.SrcCount++;
dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
}
// 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.
int total_glyphs_count = 0;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
src_tmp.GlyphsSet.Resize(src_tmp.GlyphsHighest + 1);
if (dst_tmp.GlyphsSet.Storage.empty())
dst_tmp.GlyphsSet.Resize(dst_tmp.GlyphsHighest + 1);
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
for (int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
{
if (dst_tmp.GlyphsSet.GetBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
continue;
if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
continue;
// Add to avail set/counters
src_tmp.GlyphsCount++;
dst_tmp.GlyphsCount++;
src_tmp.GlyphsSet.SetBit(codepoint, true);
dst_tmp.GlyphsSet.SetBit(codepoint, true);
total_glyphs_count++;
}
}
// 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)
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
UnpackBoolVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
src_tmp.GlyphsSet.Clear();
IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
}
for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
dst_tmp_array[dst_i].GlyphsSet.Clear();
dst_tmp_array.clear();
// Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
// (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
ImVector<stbrp_rect> buf_rects;
ImVector<stbtt_packedchar> buf_packedchars;
buf_rects.resize(total_glyphs_count);
buf_packedchars.resize(total_glyphs_count);
memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
// 4. Gather glyphs sizes so we can pack them in our virtual canvas.
int total_surface = 0;
int buf_rects_out_n = 0;
int buf_packedchars_out_n = 0;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
src_tmp.Rects = &buf_rects[buf_rects_out_n];
src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
buf_rects_out_n += src_tmp.GlyphsCount;
buf_packedchars_out_n += src_tmp.GlyphsCount;
// Convert our ranges in the format stb_truetype wants
ImFontConfig& cfg = atlas->ConfigData[src_i];
src_tmp.PackRange.font_size = cfg.SizePixels;
src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
// Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
const int padding = atlas->TexGlyphPadding;
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
{
int x0, y0, x1, y1;
const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
IM_ASSERT(glyph_index_in_font != 0);
stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
}
}
// We need a width for the skyline algorithm, any width!
// The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
// User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
atlas->TexHeight = 0;
if (atlas->TexDesiredWidth > 0)
atlas->TexWidth = atlas->TexDesiredWidth;
else
atlas->TexWidth = (surface_sqrt >= 4096*0.7f) ? 4096 : (surface_sqrt >= 2048*0.7f) ? 2048 : (surface_sqrt >= 1024*0.7f) ? 1024 : 512;
// 5. Start packing
// Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
const int TEX_HEIGHT_MAX = 1024 * 32;
stbtt_pack_context spc = {};
stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
// 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
// Extend texture height and mark missing glyphs as non-packed so we won't render them.
// 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?)
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
if (src_tmp.Rects[glyph_i].was_packed)
atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
}
// 7. Allocate texture
atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
spc.pixels = atlas->TexPixelsAlpha8;
spc.height = atlas->TexHeight;
// 8. Render/rasterize font characters into the texture
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontConfig& cfg = atlas->ConfigData[src_i];
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
// Apply multiply operator
if (cfg.RasterizerMultiply != 1.0f)
{
unsigned char multiply_table[256];
ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
stbrp_rect* r = &src_tmp.Rects[0];
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
if (r->was_packed)
ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
}
src_tmp.Rects = NULL;
}
// End packing
stbtt_PackEnd(&spc);
buf_rects.clear();
// 9. Setup ImFont and glyphs for runtime
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
if (src_tmp.GlyphsCount == 0)
continue;
ImFontConfig& cfg = atlas->ConfigData[src_i];
ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
const float font_off_x = cfg.GlyphOffset.x;
const float font_off_y = cfg.GlyphOffset.y + (float)(int)(dst_font->Ascent + 0.5f);
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
{
const int codepoint = src_tmp.GlyphsList[glyph_i];
const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
const float char_advance_x_org = pc.xadvance;
const float char_advance_x_mod = ImClamp(char_advance_x_org, cfg.GlyphMinAdvanceX, cfg.GlyphMaxAdvanceX);
float char_off_x = font_off_x;
if (char_advance_x_org != char_advance_x_mod)
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;
// Register glyph
stbtt_aligned_quad q;
float dummy_x = 0.0f, dummy_y = 0.0f;
stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &dummy_x, &dummy_y, &q, 0);
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);
}
}
// Cleanup temporary (ImVector doesn't honor destructor)
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
src_tmp_array[src_i].~ImFontBuildSrcData();
ImFontAtlasBuildFinish(atlas);
return true;
}
void ImFontAtlasBuildRegisterDefaultCustomRects(ImFontAtlas* atlas)
{
if (atlas->CustomRectIds[0] >= 0)
return;
if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
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);
else
atlas->CustomRectIds[0] = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_ID, 2, 2);
}
void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
{
if (!font_config->MergeMode)
{
font->ClearOutputData();
font->FontSize = font_config->SizePixels;
font->ConfigData = font_config;
font->ContainerAtlas = atlas;
font->Ascent = ascent;
font->Descent = descent;
}
font->ConfigDataCount++;
}
void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
{
stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
IM_ASSERT(pack_context != NULL);
ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
ImVector<stbrp_rect> pack_rects;
pack_rects.resize(user_rects.Size);
memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
for (int i = 0; i < user_rects.Size; i++)
{
pack_rects[i].w = user_rects[i].Width;
pack_rects[i].h = user_rects[i].Height;
}
stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
for (int i = 0; i < pack_rects.Size; i++)
if (pack_rects[i].was_packed)
{
user_rects[i].X = pack_rects[i].x;
user_rects[i].Y = pack_rects[i].y;
IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
}
}
static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
{
IM_ASSERT(atlas->CustomRectIds[0] >= 0);
IM_ASSERT(atlas->TexPixelsAlpha8 != NULL);
ImFontAtlasCustomRect& r = atlas->CustomRects[atlas->CustomRectIds[0]];
IM_ASSERT(r.ID == FONT_ATLAS_DEFAULT_TEX_DATA_ID);
IM_ASSERT(r.IsPacked());
const int w = atlas->TexWidth;
if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
{
// Render/copy pixels
IM_ASSERT(r.Width == FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF * 2 + 1 && r.Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
for (int y = 0, n = 0; y < FONT_ATLAS_DEFAULT_TEX_DATA_H; y++)
for (int x = 0; x < FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF; x++, n++)
{
const int offset0 = (int)(r.X + x) + (int)(r.Y + y) * w;
const int offset1 = offset0 + FONT_ATLAS_DEFAULT_TEX_DATA_W_HALF + 1;
atlas->TexPixelsAlpha8[offset0] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == '.' ? 0xFF : 0x00;
atlas->TexPixelsAlpha8[offset1] = FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[n] == 'X' ? 0xFF : 0x00;
}
}
else
{
IM_ASSERT(r.Width == 2 && r.Height == 2);
const int offset = (int)(r.X) + (int)(r.Y) * w;
atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
}
atlas->TexUvWhitePixel = ImVec2((r.X + 0.5f) * atlas->TexUvScale.x, (r.Y + 0.5f) * atlas->TexUvScale.y);
}
void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
{
// Render into our custom data block
ImFontAtlasBuildRenderDefaultTexData(atlas);
// Register custom rectangle glyphs
for (int i = 0; i < atlas->CustomRects.Size; i++)
{
const ImFontAtlasCustomRect& r = atlas->CustomRects[i];
if (r.Font == NULL || r.ID > 0x10000)
continue;
IM_ASSERT(r.Font->ContainerAtlas == atlas);
ImVec2 uv0, uv1;
atlas->CalcCustomRectUV(&r, &uv0, &uv1);
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);
}
// Build all fonts lookup tables
for (int i = 0; i < atlas->Fonts.Size; i++)
if (atlas->Fonts[i]->DirtyLookupTables)
atlas->Fonts[i]->BuildLookupTable();
}
// Retrieve list of range (2 int per range, values are inclusive)
const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x3131, 0x3163, // Korean alphabets
0xAC00, 0xD79D, // Korean characters
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x2000, 0x206F, // General Punctuation
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF, // Half-width characters
0x4e00, 0x9FAF, // CJK Ideograms
0,
};
return &ranges[0];
}
static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
{
for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
{
out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
base_codepoint += accumulative_offsets[n];
}
out_ranges[0] = 0;
}
//-------------------------------------------------------------------------
// [SECTION] ImFontAtlas glyph ranges helpers
//-------------------------------------------------------------------------
const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
{
// Store 2500 regularly used characters for Simplified Chinese.
// 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
// This table covers 97.97% of all characters used during the month in July, 1987.
// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
static const short accumulative_offsets_from_0x4E00[] =
{
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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
};
static ImWchar base_ranges[] = // not zero-terminated
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x2000, 0x206F, // General Punctuation
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF // Half-width characters
};
static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
if (!full_ranges[0])
{
memcpy(full_ranges, base_ranges, sizeof(base_ranges));
UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
}
return &full_ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
{
// 1946 common ideograms code points for Japanese
// Sourced from http://theinstructionlimit.com/common-kanji-character-ranges-for-xna-spritefont-rendering
// FIXME: Source a list of the revised 2136 Joyo Kanji list from 2010 and rebuild this.
// You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
// (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
static const short accumulative_offsets_from_0x4E00[] =
{
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
};
static ImWchar base_ranges[] = // not zero-terminated
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
0x31F0, 0x31FF, // Katakana Phonetic Extensions
0xFF00, 0xFFEF // Half-width characters
};
static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
if (!full_ranges[0])
{
memcpy(full_ranges, base_ranges, sizeof(base_ranges));
UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
}
return &full_ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
0x2DE0, 0x2DFF, // Cyrillic Extended-A
0xA640, 0xA69F, // Cyrillic Extended-B
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesThai()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin
0x2010, 0x205E, // Punctuations
0x0E00, 0x0E7F, // Thai
0,
};
return &ranges[0];
}
const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
{
static const ImWchar ranges[] =
{
0x0020, 0x00FF, // Basic Latin
0x0102, 0x0103,
0x0110, 0x0111,
0x0128, 0x0129,
0x0168, 0x0169,
0x01A0, 0x01A1,
0x01AF, 0x01B0,
0x1EA0, 0x1EF9,
0,
};
return &ranges[0];
}
//-----------------------------------------------------------------------------
// [SECTION] ImFontGlyphRangesBuilder
//-----------------------------------------------------------------------------
void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
{
while (text_end ? (text < text_end) : *text)
{
unsigned int c = 0;
int c_len = ImTextCharFromUtf8(&c, text, text_end);
text += c_len;
if (c_len == 0)
break;
if (c < 0x10000)
AddChar((ImWchar)c);
}
}
void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
{
for (; ranges[0]; ranges += 2)
for (ImWchar c = ranges[0]; c <= ranges[1]; c++)
AddChar(c);
}
void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
{
int max_codepoint = 0x10000;
for (int n = 0; n < max_codepoint; n++)
if (GetBit(n))
{
out_ranges->push_back((ImWchar)n);
while (n < max_codepoint - 1 && GetBit(n + 1))
n++;
out_ranges->push_back((ImWchar)n);
}
out_ranges->push_back(0);
}
//-----------------------------------------------------------------------------
// [SECTION] ImFont
//-----------------------------------------------------------------------------
ImFont::ImFont()
{
FontSize = 0.0f;
FallbackAdvanceX = 0.0f;
FallbackChar = (ImWchar)'?';
DisplayOffset = ImVec2(0.0f, 0.0f);
FallbackGlyph = NULL;
ContainerAtlas = NULL;
ConfigData = NULL;
ConfigDataCount = 0;
DirtyLookupTables = false;
Scale = 1.0f;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
}
ImFont::~ImFont()
{
ClearOutputData();
}
void ImFont::ClearOutputData()
{
FontSize = 0.0f;
FallbackAdvanceX = 0.0f;
Glyphs.clear();
IndexAdvanceX.clear();
IndexLookup.clear();
FallbackGlyph = NULL;
ContainerAtlas = NULL;
DirtyLookupTables = true;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
}
void ImFont::BuildLookupTable()
{
int max_codepoint = 0;
for (int i = 0; i != Glyphs.Size; i++)
max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
IndexAdvanceX.clear();
IndexLookup.clear();
DirtyLookupTables = false;
GrowIndex(max_codepoint + 1);
for (int i = 0; i < Glyphs.Size; i++)
{
int codepoint = (int)Glyphs[i].Codepoint;
IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
IndexLookup[codepoint] = (ImWchar)i;
}
// Create a glyph to handle TAB
// FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
if (FindGlyph((ImWchar)' '))
{
if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times
Glyphs.resize(Glyphs.Size + 1);
ImFontGlyph& tab_glyph = Glyphs.back();
tab_glyph = *FindGlyph((ImWchar)' ');
tab_glyph.Codepoint = '\t';
tab_glyph.AdvanceX *= IM_TABSIZE;
IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size-1);
}
FallbackGlyph = FindGlyphNoFallback(FallbackChar);
FallbackAdvanceX = FallbackGlyph ? FallbackGlyph->AdvanceX : 0.0f;
for (int i = 0; i < max_codepoint + 1; i++)
if (IndexAdvanceX[i] < 0.0f)
IndexAdvanceX[i] = FallbackAdvanceX;
}
void ImFont::SetFallbackChar(ImWchar c)
{
FallbackChar = c;
BuildLookupTable();
}
void ImFont::GrowIndex(int new_size)
{
IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
if (new_size <= IndexLookup.Size)
return;
IndexAdvanceX.resize(new_size, -1.0f);
IndexLookup.resize(new_size, (ImWchar)-1);
}
// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
// 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).
void ImFont::AddGlyph(ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
{
Glyphs.resize(Glyphs.Size + 1);
ImFontGlyph& glyph = Glyphs.back();
glyph.Codepoint = (ImWchar)codepoint;
glyph.X0 = x0;
glyph.Y0 = y0;
glyph.X1 = x1;
glyph.Y1 = y1;
glyph.U0 = u0;
glyph.V0 = v0;
glyph.U1 = u1;
glyph.V1 = v1;
glyph.AdvanceX = advance_x + ConfigData->GlyphExtraSpacing.x; // Bake spacing into AdvanceX
if (ConfigData->PixelSnapH)
glyph.AdvanceX = (float)(int)(glyph.AdvanceX + 0.5f);
// Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
DirtyLookupTables = true;
MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + 1.99f);
}
void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
{
IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
int index_size = IndexLookup.Size;
if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
return;
if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
return;
GrowIndex(dst + 1);
IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
}
const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
{
if (c >= IndexLookup.Size)
return FallbackGlyph;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)
return FallbackGlyph;
return &Glyphs.Data[i];
}
const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
{
if (c >= IndexLookup.Size)
return NULL;
const ImWchar i = IndexLookup.Data[c];
if (i == (ImWchar)-1)
return NULL;
return &Glyphs.Data[i];
}
const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
{
// Simple word-wrapping for English, not full-featured. Please submit failing cases!
// 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.)
// For references, possible wrap point marked with ^
// "aaa bbb, ccc,ddd. eee fff. ggg!"
// ^ ^ ^ ^ ^__ ^ ^
// List of hardcoded separators: .,;!?'"
// Skip extra blanks after a line returns (that includes not counting them in width computation)
// e.g. "Hello world" --> "Hello" "World"
// Cut words that cannot possibly fit within one line.
// e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
float line_width = 0.0f;
float word_width = 0.0f;
float blank_width = 0.0f;
wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
const char* word_end = text;
const char* prev_word_end = NULL;
bool inside_word = true;
const char* s = text;
while (s < text_end)
{
unsigned int c = (unsigned int)*s;
const char* next_s;
if (c < 0x80)
next_s = s + 1;
else
next_s = s + ImTextCharFromUtf8(&c, s, text_end);
if (c == 0)
break;
if (c < 32)
{
if (c == '\n')
{
line_width = word_width = blank_width = 0.0f;
inside_word = true;
s = next_s;
continue;
}
if (c == '\r')
{
s = next_s;
continue;
}
}
const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
if (ImCharIsBlankW(c))
{
if (inside_word)
{
line_width += blank_width;
blank_width = 0.0f;
word_end = s;
}
blank_width += char_width;
inside_word = false;
}
else
{
word_width += char_width;
if (inside_word)
{
word_end = next_s;
}
else
{
prev_word_end = word_end;
line_width += word_width + blank_width;
word_width = blank_width = 0.0f;
}
// Allow wrapping after punctuation.
inside_word = !(c == '.' || c == ',' || c == ';' || c == '!' || c == '?' || c == '\"');
}
// We ignore blank width at the end of the line (they can be skipped)
if (line_width + word_width > wrap_width)
{
// Words that cannot possibly fit within an entire line will be cut anywhere.
if (word_width < wrap_width)
s = prev_word_end ? prev_word_end : word_end;
break;
}
s = next_s;
}
return s;
}
ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
{
if (!text_end)
text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
const float line_height = size;
const float scale = size / FontSize;
ImVec2 text_size = ImVec2(0,0);
float line_width = 0.0f;
const bool word_wrap_enabled = (wrap_width > 0.0f);
const char* word_wrap_eol = NULL;
const char* s = text_begin;
while (s < text_end)
{
if (word_wrap_enabled)
{
// 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.
if (!word_wrap_eol)
{
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
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
}
if (s >= word_wrap_eol)
{
if (text_size.x < line_width)
text_size.x = line_width;
text_size.y += line_height;
line_width = 0.0f;
word_wrap_eol = NULL;
// Wrapping skips upcoming blanks
while (s < text_end)
{
const char c = *s;
if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
}
continue;
}
}
// Decode and advance source
const char* prev_s = s;
unsigned int c = (unsigned int)*s;
if (c < 0x80)
{
s += 1;
}
else
{
s += ImTextCharFromUtf8(&c, s, text_end);
if (c == 0) // Malformed UTF-8?
break;
}
if (c < 32)
{
if (c == '\n')
{
text_size.x = ImMax(text_size.x, line_width);
text_size.y += line_height;
line_width = 0.0f;
continue;
}
if (c == '\r')
continue;
}
const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
if (line_width + char_width >= max_width)
{
s = prev_s;
break;
}
line_width += char_width;
}
if (text_size.x < line_width)
text_size.x = line_width;
if (line_width > 0 || text_size.y == 0.0f)
text_size.y += line_height;
if (remaining)
*remaining = s;
return text_size;
}
void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
{
if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
return;
if (const ImFontGlyph* glyph = FindGlyph(c))
{
float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
pos.x = (float)(int)pos.x + DisplayOffset.x;
pos.y = (float)(int)pos.y + DisplayOffset.y;
draw_list->PrimReserve(6, 4);
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);
}
}
void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
{
if (!text_end)
text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
// Align to be pixel perfect
pos.x = (float)(int)pos.x + DisplayOffset.x;
pos.y = (float)(int)pos.y + DisplayOffset.y;
float x = pos.x;
float y = pos.y;
if (y > clip_rect.w)
return;
const float scale = size / FontSize;
const float line_height = FontSize * scale;
const bool word_wrap_enabled = (wrap_width > 0.0f);
const char* word_wrap_eol = NULL;
// Fast-forward to first visible line
const char* s = text_begin;
if (y + line_height < clip_rect.y && !word_wrap_enabled)
while (y + line_height < clip_rect.y && s < text_end)
{
s = (const char*)memchr(s, '\n', text_end - s);
s = s ? s + 1 : text_end;
y += line_height;
}
// For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
// 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)
if (text_end - s > 10000 && !word_wrap_enabled)
{
const char* s_end = s;
float y_end = y;
while (y_end < clip_rect.w && s_end < text_end)
{
s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
s_end = s_end ? s_end + 1 : text_end;
y_end += line_height;
}
text_end = s_end;
}
if (s == text_end)
return;
// Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
const int vtx_count_max = (int)(text_end - s) * 4;
const int idx_count_max = (int)(text_end - s) * 6;
const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
draw_list->PrimReserve(idx_count_max, vtx_count_max);
ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
while (s < text_end)
{
if (*s == 1)
{
++s;
unsigned char color[4];
for (int i = 0; i < 4; ++i, s += 2)
{
if (s[0] >= '0' && s[0] <= '9')
color[i] = (s[0] - '0') * 16;
else if (s[0] >= 'a' && s[0] <= 'f')
color[i] = (s[0] - 'a' + 10) * 16;
else if (s[0] >= 'A' && s[0] <= 'F')
color[i] = (s[0] - 'A' + 10) * 16;
if (s[1] >= '0' && s[1] <= '9')
color[i] += (s[1] - '0');
else if (s[1] >= 'a' && s[1] <= 'f')
color[i] += (s[1] - 'a' + 10);
else if (s[1] >= 'A' && s[1] <= 'F')
color[i] += (s[1] - 'A' + 10);
}
col = ImColor(color[0], color[1], color[2], color[3]);
continue;
}
if (word_wrap_enabled)
{
// 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.
if (!word_wrap_eol)
{
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
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
}
if (s >= word_wrap_eol)
{
x = pos.x;
y += line_height;
word_wrap_eol = NULL;
// Wrapping skips upcoming blanks
while (s < text_end)
{
const char c = *s;
if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
}
continue;
}
}
// Decode and advance source
unsigned int c = (unsigned int)*s;
if (c < 0x80)
{
s += 1;
}
else
{
s += ImTextCharFromUtf8(&c, s, text_end);
if (c == 0) // Malformed UTF-8?
break;
}
if (c < 32)
{
if (c == '\n')
{
x = pos.x;
y += line_height;
if (y > clip_rect.w)
break; // break out of main loop
continue;
}
if (c == '\r')
continue;
}
float char_width = 0.0f;
if (const ImFontGlyph* glyph = FindGlyph((ImWchar)c))
{
char_width = glyph->AdvanceX * scale;
// Arbitrarily assume that both space and tabs are empty glyphs as an optimization
if (c != ' ' && c != '\t')
{
// 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
float x1 = x + glyph->X0 * scale;
float x2 = x + glyph->X1 * scale;
float y1 = y + glyph->Y0 * scale;
float y2 = y + glyph->Y1 * scale;
if (x1 <= clip_rect.z && x2 >= clip_rect.x)
{
// Render a character
float u1 = glyph->U0;
float v1 = glyph->V0;
float u2 = glyph->U1;
float v2 = glyph->V1;
// CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
if (cpu_fine_clip)
{
if (x1 < clip_rect.x)
{
u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
x1 = clip_rect.x;
}
if (y1 < clip_rect.y)
{
v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
y1 = clip_rect.y;
}
if (x2 > clip_rect.z)
{
u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
x2 = clip_rect.z;
}
if (y2 > clip_rect.w)
{
v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
y2 = clip_rect.w;
}
if (y1 >= y2)
{
x += char_width;
continue;
}
}
// We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
{
idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
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;
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;
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;
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;
vtx_write += 4;
vtx_current_idx += 4;
idx_write += 6;
}
}
}
}
x += char_width;
}
// Give back unused vertices
draw_list->VtxBuffer.resize((int)(vtx_write - draw_list->VtxBuffer.Data));
draw_list->IdxBuffer.resize((int)(idx_write - draw_list->IdxBuffer.Data));
draw_list->CmdBuffer[draw_list->CmdBuffer.Size-1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
draw_list->_VtxWritePtr = vtx_write;
draw_list->_IdxWritePtr = idx_write;
draw_list->_VtxCurrentIdx = vtx_current_idx;
}
//-----------------------------------------------------------------------------
// [SECTION] Internal Render Helpers
// (progressively moved from imgui.cpp to here when they are redesigned to stop accessing ImGui global state)
//-----------------------------------------------------------------------------
// - RenderMouseCursor()
// - RenderArrowPointingAt()
// - RenderRectFilledRangeH()
// - RenderPixelEllipsis()
//-----------------------------------------------------------------------------
void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor)
{
if (mouse_cursor == ImGuiMouseCursor_None)
return;
IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
const ImU32 col_shadow = IM_COL32(0, 0, 0, 48);
const ImU32 col_border = IM_COL32(0, 0, 0, 255); // Black
const ImU32 col_fill = IM_COL32(255, 255, 255, 255); // White
ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
ImVec2 offset, size, uv[4];
if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
{
pos -= offset;
const ImTextureID tex_id = font_atlas->TexID;
draw_list->PushTextureID(tex_id);
draw_list->AddImage(tex_id, pos + ImVec2(1,0)*scale, pos + ImVec2(1,0)*scale + size*scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos + ImVec2(2,0)*scale, pos + ImVec2(2,0)*scale + size*scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos, pos + size*scale, uv[2], uv[3], col_border);
draw_list->AddImage(tex_id, pos, pos + size*scale, uv[0], uv[1], col_fill);
draw_list->PopTextureID();
}
}
// 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.
void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
{
switch (direction)
{
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;
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;
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;
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;
case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
}
}
static inline float ImAcos01(float x)
{
if (x <= 0.0f) return IM_PI * 0.5f;
if (x >= 1.0f) return 0.0f;
return ImAcos(x);
//return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
}
// FIXME: Cleanup and move code to ImDrawList.
void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
{
if (x_end_norm == x_start_norm)
return;
if (x_start_norm > x_end_norm)
ImSwap(x_start_norm, x_end_norm);
ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
if (rounding == 0.0f)
{
draw_list->AddRectFilled(p0, p1, col, 0.0f);
return;
}
rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
const float inv_rounding = 1.0f / rounding;
const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
const float x0 = ImMax(p0.x, rect.Min.x + rounding);
if (arc0_b == arc0_e)
{
draw_list->PathLineTo(ImVec2(x0, p1.y));
draw_list->PathLineTo(ImVec2(x0, p0.y));
}
else if (arc0_b == 0.0f && arc0_e == half_pi)
{
draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
}
else
{
draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
}
if (p1.x > rect.Min.x + rounding)
{
const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
const float x1 = ImMin(p1.x, rect.Max.x - rounding);
if (arc1_b == arc1_e)
{
draw_list->PathLineTo(ImVec2(x1, p0.y));
draw_list->PathLineTo(ImVec2(x1, p1.y));
}
else if (arc1_b == 0.0f && arc1_e == half_pi)
{
draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
}
else
{
draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
}
}
draw_list->PathFillConvex(col);
}
// FIXME: Rendering an ellipsis "..." is a surprisingly tricky problem for us... we cannot rely on font glyph having it,
// and regular dot are typically too wide. If we render a dot/shape ourselves it comes with the risk that it wouldn't match
// the boldness or positioning of what the font uses...
void ImGui::RenderPixelEllipsis(ImDrawList* draw_list, ImVec2 pos, ImU32 col, int count)
{
ImFont* font = draw_list->_Data->Font;
const float font_scale = draw_list->_Data->FontSize / font->FontSize;
pos.y += (float)(int)(font->DisplayOffset.y + font->Ascent * font_scale + 0.5f - 1.0f);
for (int dot_n = 0; dot_n < count; dot_n++)
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);
}
//-----------------------------------------------------------------------------
// [SECTION] Decompression code
//-----------------------------------------------------------------------------
// Compressed with stb_compress() then converted to a C array and encoded as base85.
// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
//-----------------------------------------------------------------------------
static unsigned int stb_decompress_length(const unsigned char *input)
{
return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
}
static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
static const unsigned char *stb__barrier_in_b;
static unsigned char *stb__dout;
static void stb__match(const unsigned char *data, unsigned int length)
{
// INVERSE of memmove... write each byte before copying the next...
IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
while (length--) *stb__dout++ = *data++;
}
static void stb__lit(const unsigned char *data, unsigned int length)
{
IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
memcpy(stb__dout, data, length);
stb__dout += length;
}
#define stb__in2(x) ((i[x] << 8) + i[(x)+1])
#define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
#define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
static const unsigned char *stb_decompress_token(const unsigned char *i)
{
if (*i >= 0x20) { // use fewer if's for cases that expand small
if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
} else { // more ifs for cases that expand large, since overhead is amortized
if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
}
return i;
}
static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
{
const unsigned long ADLER_MOD = 65521;
unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
unsigned long blocklen, i;
blocklen = buflen % 5552;
while (buflen) {
for (i=0; i + 7 < blocklen; i += 8) {
s1 += buffer[0], s2 += s1;
s1 += buffer[1], s2 += s1;
s1 += buffer[2], s2 += s1;
s1 += buffer[3], s2 += s1;
s1 += buffer[4], s2 += s1;
s1 += buffer[5], s2 += s1;
s1 += buffer[6], s2 += s1;
s1 += buffer[7], s2 += s1;
buffer += 8;
}
for (; i < blocklen; ++i)
s1 += *buffer++, s2 += s1;
s1 %= ADLER_MOD, s2 %= ADLER_MOD;
buflen -= blocklen;
blocklen = 5552;
}
return (unsigned int)(s2 << 16) + (unsigned int)s1;
}
static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
{
unsigned int olen;
if (stb__in4(0) != 0x57bC0000) return 0;
if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
olen = stb_decompress_length(i);
stb__barrier_in_b = i;
stb__barrier_out_e = output + olen;
stb__barrier_out_b = output;
i += 16;
stb__dout = output;
for (;;) {
const unsigned char *old_i = i;
i = stb_decompress_token(i);
if (i == old_i) {
if (*i == 0x05 && i[1] == 0xfa) {
IM_ASSERT(stb__dout == output + olen);
if (stb__dout != output + olen) return 0;
if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
return 0;
return olen;
} else {
IM_ASSERT(0); /* NOTREACHED */
return 0;
}
}
IM_ASSERT(stb__dout <= output + olen);
if (stb__dout > output + olen)
return 0;
}
}
//-----------------------------------------------------------------------------
// [SECTION] Default font data (ProggyClean.ttf)
//-----------------------------------------------------------------------------
// ProggyClean.ttf
// Copyright (c) 2004, 2005 Tristan Grimmer
// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
// Download and more information at http://upperbounds.net
//-----------------------------------------------------------------------------
// File: 'ProggyClean.ttf' (41208 bytes)
// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
//-----------------------------------------------------------------------------
static const char proggy_clean_ttf_compressed_data_base85[11980+1] =
"7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
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"O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
static const char* GetDefaultCompressedFontDataTTFBase85()
{
return proggy_clean_ttf_compressed_data_base85;
}
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