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authormtamis <[email protected]>2017-02-28 18:24:59 +0100
committermtamis <[email protected]>2017-02-28 18:24:59 +0100
commit5581909a4d19db97304449f66404ff99a0429d3f (patch)
treea90f7eb85c095a8aba45cf5e909c82c1cdbed77d /NvCloth/samples/external/imgui/1.49/imgui_draw.cpp
parentFix cmake visual studio project generation (locate_gw_root.bat) (diff)
downloadnvcloth-5581909a4d19db97304449f66404ff99a0429d3f.tar.xz
nvcloth-5581909a4d19db97304449f66404ff99a0429d3f.zip
Add visual samples.
Diffstat (limited to 'NvCloth/samples/external/imgui/1.49/imgui_draw.cpp')
-rw-r--r--NvCloth/samples/external/imgui/1.49/imgui_draw.cpp2377
1 files changed, 2377 insertions, 0 deletions
diff --git a/NvCloth/samples/external/imgui/1.49/imgui_draw.cpp b/NvCloth/samples/external/imgui/1.49/imgui_draw.cpp
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index 0000000..63cf882
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+++ b/NvCloth/samples/external/imgui/1.49/imgui_draw.cpp
@@ -0,0 +1,2377 @@
+// dear imgui, v1.49
+// (drawing and font code)
+
+// Contains implementation for
+// - ImDrawList
+// - ImDrawData
+// - ImFontAtlas
+// - ImFont
+// - Default font data
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#define IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_PLACEMENT_NEW
+#include "imgui_internal.h"
+
+#include <stdio.h> // vsnprintf, sscanf, printf
+#if !defined(alloca) && !defined(__FreeBSD__) && !defined(__DragonFly__)
+#ifdef _WIN32
+#include <malloc.h> // alloca
+#else
+#include <alloca.h> // alloca
+#endif
+#endif
+
+#ifdef _MSC_VER
+#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
+#define snprintf _snprintf
+#endif
+
+#ifdef __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 it.
+#pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
+#pragma clang diagnostic ignored "-Wreserved-id-macro" // warning : macro name is a reserved identifier //
+#elif defined(__GNUC__)
+#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
+#endif
+
+//-------------------------------------------------------------------------
+// STB libraries implementation
+//-------------------------------------------------------------------------
+
+//#define IMGUI_STB_NAMESPACE ImGuiStb
+//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
+//#define IMGUI_DISABLE_STB_TRUETYPE_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
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wunused-function"
+#pragma clang diagnostic ignored "-Wmissing-prototypes"
+#endif
+
+#ifdef __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]
+#endif
+
+#define STBRP_ASSERT(x) IM_ASSERT(x)
+#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
+#define STBRP_STATIC
+#define STB_RECT_PACK_IMPLEMENTATION
+#endif
+#include "stb_rect_pack.h"
+
+#define STBTT_malloc(x,u) ((void)(u), ImGui::MemAlloc(x))
+#define STBTT_free(x,u) ((void)(u), ImGui::MemFree(x))
+#define STBTT_assert(x) IM_ASSERT(x)
+#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
+#define STBTT_STATIC
+#define STB_TRUETYPE_IMPLEMENTATION
+#else
+#define STBTT_DEF extern
+#endif
+#include "stb_truetype.h"
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (pop)
+#endif
+
+#ifdef IMGUI_STB_NAMESPACE
+} // namespace ImGuiStb
+using namespace IMGUI_STB_NAMESPACE;
+#endif
+
+//-----------------------------------------------------------------------------
+// ImDrawList
+//-----------------------------------------------------------------------------
+
+static const ImVec4 GNullClipRect(-8192.0f, -8192.0f, +8192.0f, +8192.0f); // Large values that are easy to encode in a few bits+shift
+
+void ImDrawList::Clear()
+{
+ CmdBuffer.resize(0);
+ IdxBuffer.resize(0);
+ VtxBuffer.resize(0);
+ _VtxCurrentIdx = 0;
+ _VtxWritePtr = NULL;
+ _IdxWritePtr = NULL;
+ _ClipRectStack.resize(0);
+ _TextureIdStack.resize(0);
+ _Path.resize(0);
+ _ChannelsCurrent = 0;
+ _ChannelsCount = 1;
+ // NB: Do not clear channels so our allocations are re-used after the first frame.
+}
+
+void ImDrawList::ClearFreeMemory()
+{
+ CmdBuffer.clear();
+ IdxBuffer.clear();
+ VtxBuffer.clear();
+ _VtxCurrentIdx = 0;
+ _VtxWritePtr = NULL;
+ _IdxWritePtr = NULL;
+ _ClipRectStack.clear();
+ _TextureIdStack.clear();
+ _Path.clear();
+ _ChannelsCurrent = 0;
+ _ChannelsCount = 1;
+ for (int i = 0; i < _Channels.Size; i++)
+ {
+ if (i == 0) memset(&_Channels[0], 0, sizeof(_Channels[0])); // channel 0 is a copy of CmdBuffer/IdxBuffer, don't destruct again
+ _Channels[i].CmdBuffer.clear();
+ _Channels[i].IdxBuffer.clear();
+ }
+ _Channels.clear();
+}
+
+// Use macros because C++ is a terrible language, we want guaranteed inline, no code in header, and no overhead in Debug mode
+#define GetCurrentClipRect() (_ClipRectStack.Size ? _ClipRectStack.Data[_ClipRectStack.Size-1] : GNullClipRect)
+#define GetCurrentTextureId() (_TextureIdStack.Size ? _TextureIdStack.Data[_TextureIdStack.Size-1] : NULL)
+
+void ImDrawList::AddDrawCmd()
+{
+ ImDrawCmd draw_cmd;
+ draw_cmd.ClipRect = GetCurrentClipRect();
+ draw_cmd.TextureId = GetCurrentTextureId();
+
+ 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 (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 (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(GNullClipRect.x, GNullClipRect.y), ImVec2(GNullClipRect.z, GNullClipRect.w));
+ //PushClipRect(GetVisibleRect()); // FIXME-OPT: This would be more correct but we're not supposed to access ImGuiContext from here?
+}
+
+void ImDrawList::PopClipRect()
+{
+ IM_ASSERT(_ClipRectStack.Size > 0);
+ _ClipRectStack.pop_back();
+ UpdateClipRect();
+}
+
+void ImDrawList::PushTextureID(const ImTextureID& texture_id)
+{
+ _TextureIdStack.push_back(texture_id);
+ UpdateTextureID();
+}
+
+void ImDrawList::PopTextureID()
+{
+ IM_ASSERT(_TextureIdStack.Size > 0);
+ _TextureIdStack.pop_back();
+ UpdateTextureID();
+}
+
+void ImDrawList::ChannelsSplit(int channels_count)
+{
+ IM_ASSERT(_ChannelsCurrent == 0 && _ChannelsCount == 1);
+ int old_channels_count = _Channels.Size;
+ if (old_channels_count < channels_count)
+ _Channels.resize(channels_count);
+ _ChannelsCount = channels_count;
+
+ // _Channels[] (24 bytes each) hold storage that we'll swap with this->_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 _CmdBuffer/_IdxBuffer into _Channels[0] and then _Channels[1] into _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 = _ClipRectStack.back();
+ draw_cmd.TextureId = _TextureIdStack.back();
+ _Channels[i].CmdBuffer.push_back(draw_cmd);
+ }
+ }
+}
+
+void ImDrawList::ChannelsMerge()
+{
+ // 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 (_ChannelsCount <= 1)
+ return;
+
+ ChannelsSetCurrent(0);
+ if (CmdBuffer.Size && CmdBuffer.back().ElemCount == 0)
+ CmdBuffer.pop_back();
+
+ int new_cmd_buffer_count = 0, new_idx_buffer_count = 0;
+ for (int i = 1; i < _ChannelsCount; i++)
+ {
+ ImDrawChannel& ch = _Channels[i];
+ if (ch.CmdBuffer.Size && ch.CmdBuffer.back().ElemCount == 0)
+ ch.CmdBuffer.pop_back();
+ new_cmd_buffer_count += ch.CmdBuffer.Size;
+ new_idx_buffer_count += ch.IdxBuffer.Size;
+ }
+ CmdBuffer.resize(CmdBuffer.Size + new_cmd_buffer_count);
+ IdxBuffer.resize(IdxBuffer.Size + new_idx_buffer_count);
+
+ ImDrawCmd* cmd_write = CmdBuffer.Data + CmdBuffer.Size - new_cmd_buffer_count;
+ _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size - new_idx_buffer_count;
+ for (int i = 1; i < _ChannelsCount; 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(_IdxWritePtr, ch.IdxBuffer.Data, sz * sizeof(ImDrawIdx)); _IdxWritePtr += sz; }
+ }
+ AddDrawCmd();
+ _ChannelsCount = 1;
+}
+
+void ImDrawList::ChannelsSetCurrent(int idx)
+{
+ IM_ASSERT(idx < _ChannelsCount);
+ if (_ChannelsCurrent == idx) return;
+ memcpy(&_Channels.Data[_ChannelsCurrent].CmdBuffer, &CmdBuffer, sizeof(CmdBuffer)); // copy 12 bytes, four times
+ memcpy(&_Channels.Data[_ChannelsCurrent].IdxBuffer, &IdxBuffer, sizeof(IdxBuffer));
+ _ChannelsCurrent = idx;
+ memcpy(&CmdBuffer, &_Channels.Data[_ChannelsCurrent].CmdBuffer, sizeof(CmdBuffer));
+ memcpy(&IdxBuffer, &_Channels.Data[_ChannelsCurrent].IdxBuffer, sizeof(IdxBuffer));
+ _IdxWritePtr = IdxBuffer.Data + IdxBuffer.Size;
+}
+
+// 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)
+{
+ ImDrawCmd& draw_cmd = CmdBuffer.Data[CmdBuffer.Size-1];
+ draw_cmd.ElemCount += idx_count;
+
+ int vtx_buffer_size = VtxBuffer.Size;
+ VtxBuffer.resize(vtx_buffer_size + vtx_count);
+ _VtxWritePtr = VtxBuffer.Data + vtx_buffer_size;
+
+ int idx_buffer_size = IdxBuffer.Size;
+ IdxBuffer.resize(idx_buffer_size + idx_count);
+ _IdxWritePtr = IdxBuffer.Data + idx_buffer_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(GImGui->FontTexUvWhitePixel);
+ 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;
+}
+
+// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
+void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, bool closed, float thickness, bool anti_aliased)
+{
+ if (points_count < 2)
+ return;
+
+ const ImVec2 uv = GImGui->FontTexUvWhitePixel;
+ anti_aliased &= GImGui->Style.AntiAliasedLines;
+ //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug
+
+ int count = points_count;
+ if (!closed)
+ count = points_count-1;
+
+ const bool thick_line = thickness > 1.0f;
+ if (anti_aliased)
+ {
+ // Anti-aliased stroke
+ const float AA_SIZE = 1.0f;
+ const ImU32 col_trans = col & 0x00ffffff;
+
+ 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));
+ ImVec2* temp_points = temp_normals + points_count;
+
+ for (int i1 = 0; i1 < count; i1++)
+ {
+ const int i2 = (i1+1) == points_count ? 0 : i1+1;
+ ImVec2 diff = points[i2] - points[i1];
+ diff *= ImInvLength(diff, 1.0f);
+ temp_normals[i1].x = diff.y;
+ temp_normals[i1].y = -diff.x;
+ }
+ 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
+ ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
+ float dmr2 = dm.x*dm.x + dm.y*dm.y;
+ if (dmr2 > 0.000001f)
+ {
+ float scale = 1.0f / dmr2;
+ if (scale > 100.0f) scale = 100.0f;
+ dm *= scale;
+ }
+ dm *= AA_SIZE;
+ temp_points[i2*2+0] = points[i2] + dm;
+ temp_points[i2*2+1] = points[i2] - dm;
+
+ // 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
+ ImVec2 dm = (temp_normals[i1] + temp_normals[i2]) * 0.5f;
+ float dmr2 = dm.x*dm.x + dm.y*dm.y;
+ if (dmr2 > 0.000001f)
+ {
+ float scale = 1.0f / dmr2;
+ if (scale > 100.0f) scale = 100.0f;
+ dm *= scale;
+ }
+ ImVec2 dm_out = dm * (half_inner_thickness + AA_SIZE);
+ ImVec2 dm_in = dm * half_inner_thickness;
+ temp_points[i2*4+0] = points[i2] + dm_out;
+ temp_points[i2*4+1] = points[i2] + dm_in;
+ temp_points[i2*4+2] = points[i2] - dm_in;
+ temp_points[i2*4+3] = points[i2] - dm_out;
+
+ // 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];
+ ImVec2 diff = p2 - p1;
+ diff *= ImInvLength(diff, 1.0f);
+
+ const float dx = diff.x * (thickness * 0.5f);
+ const float dy = diff.y * (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;
+ }
+ }
+}
+
+void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col, bool anti_aliased)
+{
+ const ImVec2 uv = GImGui->FontTexUvWhitePixel;
+ anti_aliased &= GImGui->Style.AntiAliasedShapes;
+ //if (ImGui::GetIO().KeyCtrl) anti_aliased = false; // Debug
+
+ if (anti_aliased)
+ {
+ // Anti-aliased Fill
+ const float AA_SIZE = 1.0f;
+ const ImU32 col_trans = col & 0x00ffffff;
+ 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));
+ for (int i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++)
+ {
+ const ImVec2& p0 = points[i0];
+ const ImVec2& p1 = points[i1];
+ ImVec2 diff = p1 - p0;
+ diff *= ImInvLength(diff, 1.0f);
+ temp_normals[i0].x = diff.y;
+ temp_normals[i0].y = -diff.x;
+ }
+
+ 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];
+ ImVec2 dm = (n0 + n1) * 0.5f;
+ float dmr2 = dm.x*dm.x + dm.y*dm.y;
+ if (dmr2 > 0.000001f)
+ {
+ float scale = 1.0f / dmr2;
+ if (scale > 100.0f) scale = 100.0f;
+ dm *= scale;
+ }
+ dm *= AA_SIZE * 0.5f;
+
+ // Add vertices
+ _VtxWritePtr[0].pos = (points[i1] - dm); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
+ _VtxWritePtr[1].pos = (points[i1] + dm); _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 amin, int amax)
+{
+ static ImVec2 circle_vtx[12];
+ static bool circle_vtx_builds = false;
+ const int circle_vtx_count = IM_ARRAYSIZE(circle_vtx);
+ if (!circle_vtx_builds)
+ {
+ for (int i = 0; i < circle_vtx_count; i++)
+ {
+ const float a = ((float)i / (float)circle_vtx_count) * 2*IM_PI;
+ circle_vtx[i].x = cosf(a);
+ circle_vtx[i].y = sinf(a);
+ }
+ circle_vtx_builds = true;
+ }
+
+ if (amin > amax) return;
+ if (radius == 0.0f)
+ {
+ _Path.push_back(centre);
+ }
+ else
+ {
+ _Path.reserve(_Path.Size + (amax - amin + 1));
+ for (int a = amin; a <= amax; a++)
+ {
+ const ImVec2& c = circle_vtx[a % circle_vtx_count];
+ _Path.push_back(ImVec2(centre.x + c.x * radius, centre.y + c.y * radius));
+ }
+ }
+}
+
+void ImDrawList::PathArcTo(const ImVec2& centre, float radius, float amin, float amax, int num_segments)
+{
+ if (radius == 0.0f)
+ _Path.push_back(centre);
+ _Path.reserve(_Path.Size + (num_segments + 1));
+ for (int i = 0; i <= num_segments; i++)
+ {
+ const float a = amin + ((float)i / (float)num_segments) * (amax - amin);
+ _Path.push_back(ImVec2(centre.x + cosf(a) * radius, centre.y + sinf(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, GImGui->Style.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)
+{
+ float r = rounding;
+ r = ImMin(r, fabsf(b.x-a.x) * ( ((rounding_corners&(1|2))==(1|2)) || ((rounding_corners&(4|8))==(4|8)) ? 0.5f : 1.0f ) - 1.0f);
+ r = ImMin(r, fabsf(b.y-a.y) * ( ((rounding_corners&(1|8))==(1|8)) || ((rounding_corners&(2|4))==(2|4)) ? 0.5f : 1.0f ) - 1.0f);
+
+ if (r <= 0.0f || rounding_corners == 0)
+ {
+ PathLineTo(a);
+ PathLineTo(ImVec2(b.x,a.y));
+ PathLineTo(b);
+ PathLineTo(ImVec2(a.x,b.y));
+ }
+ else
+ {
+ const float r0 = (rounding_corners & 1) ? r : 0.0f;
+ const float r1 = (rounding_corners & 2) ? r : 0.0f;
+ const float r2 = (rounding_corners & 4) ? r : 0.0f;
+ const float r3 = (rounding_corners & 8) ? r : 0.0f;
+ PathArcToFast(ImVec2(a.x+r0,a.y+r0), r0, 6, 9);
+ PathArcToFast(ImVec2(b.x-r1,a.y+r1), r1, 9, 12);
+ PathArcToFast(ImVec2(b.x-r2,b.y-r2), r2, 0, 3);
+ PathArcToFast(ImVec2(a.x+r3,b.y-r3), r3, 3, 6);
+ }
+}
+
+void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness)
+{
+ if ((col >> 24) == 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, float thickness)
+{
+ if ((col >> 24) == 0)
+ return;
+ PathRect(a + ImVec2(0.5f,0.5f), b - ImVec2(0.5f,0.5f), rounding, rounding_corners);
+ PathStroke(col, true, thickness);
+}
+
+void ImDrawList::AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding, int rounding_corners)
+{
+ if ((col >> 24) == 0)
+ return;
+ if (rounding > 0.0f)
+ {
+ PathRect(a, b, rounding, rounding_corners);
+ PathFill(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) >> 24) == 0)
+ return;
+
+ const ImVec2 uv = GImGui->FontTexUvWhitePixel;
+ 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 >> 24) == 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 >> 24) == 0)
+ return;
+
+ PathLineTo(a);
+ PathLineTo(b);
+ PathLineTo(c);
+ PathLineTo(d);
+ PathFill(col);
+}
+
+void ImDrawList::AddTriangle(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col, float thickness)
+{
+ if ((col >> 24) == 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 >> 24) == 0)
+ return;
+
+ PathLineTo(a);
+ PathLineTo(b);
+ PathLineTo(c);
+ PathFill(col);
+}
+
+void ImDrawList::AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments, float thickness)
+{
+ if ((col >> 24) == 0)
+ return;
+
+ 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);
+ PathStroke(col, true, thickness);
+}
+
+void ImDrawList::AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments)
+{
+ if ((col >> 24) == 0)
+ return;
+
+ 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);
+ PathFill(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 >> 24) == 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 >> 24) == 0)
+ return;
+
+ if (text_end == NULL)
+ text_end = text_begin + strlen(text_begin);
+ if (text_begin == text_end)
+ return;
+
+ // Note: This is one of the few instance of breaking the encapsulation of ImDrawList, as we pull this from ImGui state, but it is just SO useful.
+ // Might just move Font/FontSize to ImDrawList?
+ if (font == NULL)
+ font = GImGui->Font;
+ if (font_size == 0.0f)
+ font_size = GImGui->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(GImGui->Font, GImGui->FontSize, pos, col, text_begin, text_end);
+}
+
+void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv0, const ImVec2& uv1, ImU32 col)
+{
+ if ((col >> 24) == 0)
+ return;
+
+ // FIXME-OPT: This is wasting draw calls.
+ 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, uv0, uv1, col);
+
+ if (push_texture_id)
+ PopTextureID();
+}
+
+//-----------------------------------------------------------------------------
+// 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 ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
+void ImDrawData::ScaleClipRects(const ImVec2& 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 * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y);
+ }
+ }
+}
+
+//-----------------------------------------------------------------------------
+// ImFontAtlas
+//-----------------------------------------------------------------------------
+
+ImFontConfig::ImFontConfig()
+{
+ FontData = NULL;
+ FontDataSize = 0;
+ FontDataOwnedByAtlas = true;
+ FontNo = 0;
+ SizePixels = 0.0f;
+ OversampleH = 3;
+ OversampleV = 1;
+ PixelSnapH = false;
+ GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
+ GlyphRanges = NULL;
+ MergeMode = false;
+ MergeGlyphCenterV = false;
+ DstFont = NULL;
+ memset(Name, 0, sizeof(Name));
+}
+
+ImFontAtlas::ImFontAtlas()
+{
+ TexID = NULL;
+ TexPixelsAlpha8 = NULL;
+ TexPixelsRGBA32 = NULL;
+ TexWidth = TexHeight = TexDesiredWidth = 0;
+ TexUvWhitePixel = ImVec2(0, 0);
+}
+
+ImFontAtlas::~ImFontAtlas()
+{
+ Clear();
+}
+
+void ImFontAtlas::ClearInputData()
+{
+ for (int i = 0; i < ConfigData.Size; i++)
+ if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
+ {
+ ImGui::MemFree(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();
+}
+
+void ImFontAtlas::ClearTexData()
+{
+ if (TexPixelsAlpha8)
+ ImGui::MemFree(TexPixelsAlpha8);
+ if (TexPixelsRGBA32)
+ ImGui::MemFree(TexPixelsRGBA32);
+ TexPixelsAlpha8 = NULL;
+ TexPixelsRGBA32 = NULL;
+}
+
+void ImFontAtlas::ClearFonts()
+{
+ for (int i = 0; i < Fonts.Size; i++)
+ {
+ Fonts[i]->~ImFont();
+ ImGui::MemFree(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;
+ GetTexDataAsAlpha8(&pixels, NULL, NULL);
+ TexPixelsRGBA32 = (unsigned int*)ImGui::MemAlloc((size_t)(TexWidth * TexHeight * 4));
+ const unsigned char* src = pixels;
+ unsigned int* dst = TexPixelsRGBA32;
+ for (int n = TexWidth * TexHeight; n > 0; n--)
+ *dst++ = ((unsigned int)(*src++) << 24) | 0x00FFFFFF;
+ }
+
+ *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(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
+ IM_ASSERT(font_cfg->SizePixels > 0.0f);
+
+ // Create new font
+ if (!font_cfg->MergeMode)
+ {
+ ImFont* font = (ImFont*)ImGui::MemAlloc(sizeof(ImFont));
+ IM_PLACEMENT_NEW(font) ImFont();
+ Fonts.push_back(font);
+ }
+
+ ConfigData.push_back(*font_cfg);
+ ImFontConfig& new_font_cfg = ConfigData.back();
+ if (!new_font_cfg.DstFont)
+ new_font_cfg.DstFont = Fonts.back();
+ if (!new_font_cfg.FontDataOwnedByAtlas)
+ {
+ new_font_cfg.FontData = ImGui::MemAlloc(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 extra_fonts/binary_to_compressed_c.cpp for encoder)
+static unsigned int stb_decompress_length(unsigned char *input);
+static unsigned int stb_decompress(unsigned char *output, unsigned char *i, 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-endianess.
+ 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.Name[0] == '\0') strcpy(font_cfg.Name, "<default>");
+
+ const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
+ ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, 13.0f, &font_cfg, GetGlyphRangesDefault());
+ return font;
+}
+
+ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+ int data_size = 0;
+ void* data = ImLoadFileToMemory(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--) {}
+ snprintf(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s", p);
+ }
+ return AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg, glyph_ranges);
+}
+
+// NBM 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)
+{
+ 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((unsigned char*)compressed_ttf_data);
+ unsigned char* buf_decompressed_data = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
+ stb_decompress(buf_decompressed_data, (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 = ImGui::MemAlloc((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);
+ ImGui::MemFree(compressed_ttf);
+ return font;
+}
+
+bool ImFontAtlas::Build()
+{
+ IM_ASSERT(ConfigData.Size > 0);
+
+ TexID = NULL;
+ TexWidth = TexHeight = 0;
+ TexUvWhitePixel = ImVec2(0, 0);
+ ClearTexData();
+
+ struct ImFontTempBuildData
+ {
+ stbtt_fontinfo FontInfo;
+ stbrp_rect* Rects;
+ stbtt_pack_range* Ranges;
+ int RangesCount;
+ };
+ ImFontTempBuildData* tmp_array = (ImFontTempBuildData*)ImGui::MemAlloc((size_t)ConfigData.Size * sizeof(ImFontTempBuildData));
+
+ // Initialize font information early (so we can error without any cleanup) + count glyphs
+ int total_glyph_count = 0;
+ int total_glyph_range_count = 0;
+ for (int input_i = 0; input_i < ConfigData.Size; input_i++)
+ {
+ ImFontConfig& cfg = ConfigData[input_i];
+ ImFontTempBuildData& tmp = tmp_array[input_i];
+
+ IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == this));
+ const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
+ IM_ASSERT(font_offset >= 0);
+ if (!stbtt_InitFont(&tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
+ return false;
+
+ // Count glyphs
+ if (!cfg.GlyphRanges)
+ cfg.GlyphRanges = GetGlyphRangesDefault();
+ for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2)
+ {
+ total_glyph_count += (in_range[1] - in_range[0]) + 1;
+ total_glyph_range_count++;
+ }
+ }
+
+ // Start packing. We need a known width for the skyline algorithm. Using a cheap heuristic here to decide of width. User can override TexDesiredWidth if they wish.
+ // After packing is done, width shouldn't matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
+ TexWidth = (TexDesiredWidth > 0) ? TexDesiredWidth : (total_glyph_count > 4000) ? 4096 : (total_glyph_count > 2000) ? 2048 : (total_glyph_count > 1000) ? 1024 : 512;
+ TexHeight = 0;
+ const int max_tex_height = 1024*32;
+ stbtt_pack_context spc;
+ stbtt_PackBegin(&spc, NULL, TexWidth, max_tex_height, 0, 1, NULL);
+
+ // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
+ ImVector<stbrp_rect> extra_rects;
+ RenderCustomTexData(0, &extra_rects);
+ stbtt_PackSetOversampling(&spc, 1, 1);
+ stbrp_pack_rects((stbrp_context*)spc.pack_info, &extra_rects[0], extra_rects.Size);
+ for (int i = 0; i < extra_rects.Size; i++)
+ if (extra_rects[i].was_packed)
+ TexHeight = ImMax(TexHeight, extra_rects[i].y + extra_rects[i].h);
+
+ // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
+ int buf_packedchars_n = 0, buf_rects_n = 0, buf_ranges_n = 0;
+ stbtt_packedchar* buf_packedchars = (stbtt_packedchar*)ImGui::MemAlloc(total_glyph_count * sizeof(stbtt_packedchar));
+ stbrp_rect* buf_rects = (stbrp_rect*)ImGui::MemAlloc(total_glyph_count * sizeof(stbrp_rect));
+ stbtt_pack_range* buf_ranges = (stbtt_pack_range*)ImGui::MemAlloc(total_glyph_range_count * sizeof(stbtt_pack_range));
+ memset(buf_packedchars, 0, total_glyph_count * sizeof(stbtt_packedchar));
+ memset(buf_rects, 0, total_glyph_count * sizeof(stbrp_rect)); // Unnecessary but let's clear this for the sake of sanity.
+ memset(buf_ranges, 0, total_glyph_range_count * sizeof(stbtt_pack_range));
+
+ // First font pass: pack all glyphs (no rendering at this point, we are working with rectangles in an infinitely tall texture at this point)
+ for (int input_i = 0; input_i < ConfigData.Size; input_i++)
+ {
+ ImFontConfig& cfg = ConfigData[input_i];
+ ImFontTempBuildData& tmp = tmp_array[input_i];
+
+ // Setup ranges
+ int glyph_count = 0;
+ int glyph_ranges_count = 0;
+ for (const ImWchar* in_range = cfg.GlyphRanges; in_range[0] && in_range[1]; in_range += 2)
+ {
+ glyph_count += (in_range[1] - in_range[0]) + 1;
+ glyph_ranges_count++;
+ }
+ tmp.Ranges = buf_ranges + buf_ranges_n;
+ tmp.RangesCount = glyph_ranges_count;
+ buf_ranges_n += glyph_ranges_count;
+ for (int i = 0; i < glyph_ranges_count; i++)
+ {
+ const ImWchar* in_range = &cfg.GlyphRanges[i * 2];
+ stbtt_pack_range& range = tmp.Ranges[i];
+ range.font_size = cfg.SizePixels;
+ range.first_unicode_codepoint_in_range = in_range[0];
+ range.num_chars = (in_range[1] - in_range[0]) + 1;
+ range.chardata_for_range = buf_packedchars + buf_packedchars_n;
+ buf_packedchars_n += range.num_chars;
+ }
+
+ // Pack
+ tmp.Rects = buf_rects + buf_rects_n;
+ buf_rects_n += glyph_count;
+ stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
+ int n = stbtt_PackFontRangesGatherRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
+ stbrp_pack_rects((stbrp_context*)spc.pack_info, tmp.Rects, n);
+
+ // Extend texture height
+ for (int i = 0; i < n; i++)
+ if (tmp.Rects[i].was_packed)
+ TexHeight = ImMax(TexHeight, tmp.Rects[i].y + tmp.Rects[i].h);
+ }
+ IM_ASSERT(buf_rects_n == total_glyph_count);
+ IM_ASSERT(buf_packedchars_n == total_glyph_count);
+ IM_ASSERT(buf_ranges_n == total_glyph_range_count);
+
+ // Create texture
+ TexHeight = ImUpperPowerOfTwo(TexHeight);
+ TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(TexWidth * TexHeight);
+ memset(TexPixelsAlpha8, 0, TexWidth * TexHeight);
+ spc.pixels = TexPixelsAlpha8;
+ spc.height = TexHeight;
+
+ // Second pass: render characters
+ for (int input_i = 0; input_i < ConfigData.Size; input_i++)
+ {
+ ImFontConfig& cfg = ConfigData[input_i];
+ ImFontTempBuildData& tmp = tmp_array[input_i];
+ stbtt_PackSetOversampling(&spc, cfg.OversampleH, cfg.OversampleV);
+ stbtt_PackFontRangesRenderIntoRects(&spc, &tmp.FontInfo, tmp.Ranges, tmp.RangesCount, tmp.Rects);
+ tmp.Rects = NULL;
+ }
+
+ // End packing
+ stbtt_PackEnd(&spc);
+ ImGui::MemFree(buf_rects);
+ buf_rects = NULL;
+
+ // Third pass: setup ImFont and glyphs for runtime
+ for (int input_i = 0; input_i < ConfigData.Size; input_i++)
+ {
+ ImFontConfig& cfg = ConfigData[input_i];
+ ImFontTempBuildData& tmp = tmp_array[input_i];
+ ImFont* dst_font = cfg.DstFont;
+
+ float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
+ int unscaled_ascent, unscaled_descent, unscaled_line_gap;
+ stbtt_GetFontVMetrics(&tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
+
+ float ascent = unscaled_ascent * font_scale;
+ float descent = unscaled_descent * font_scale;
+ if (!cfg.MergeMode)
+ {
+ dst_font->ContainerAtlas = this;
+ dst_font->ConfigData = &cfg;
+ dst_font->ConfigDataCount = 0;
+ dst_font->FontSize = cfg.SizePixels;
+ dst_font->Ascent = ascent;
+ dst_font->Descent = descent;
+ dst_font->Glyphs.resize(0);
+ }
+ dst_font->ConfigDataCount++;
+ float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f;
+
+ dst_font->FallbackGlyph = NULL; // Always clear fallback so FindGlyph can return NULL. It will be set again in BuildLookupTable()
+ for (int i = 0; i < tmp.RangesCount; i++)
+ {
+ stbtt_pack_range& range = tmp.Ranges[i];
+ for (int char_idx = 0; char_idx < range.num_chars; char_idx += 1)
+ {
+ const stbtt_packedchar& pc = range.chardata_for_range[char_idx];
+ if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1)
+ continue;
+
+ const int codepoint = range.first_unicode_codepoint_in_range + char_idx;
+ if (cfg.MergeMode && dst_font->FindGlyph((unsigned short)codepoint))
+ continue;
+
+ stbtt_aligned_quad q;
+ float dummy_x = 0.0f, dummy_y = 0.0f;
+ stbtt_GetPackedQuad(range.chardata_for_range, TexWidth, TexHeight, char_idx, &dummy_x, &dummy_y, &q, 0);
+
+ dst_font->Glyphs.resize(dst_font->Glyphs.Size + 1);
+ ImFont::Glyph& glyph = dst_font->Glyphs.back();
+ glyph.Codepoint = (ImWchar)codepoint;
+ glyph.X0 = q.x0; glyph.Y0 = q.y0; glyph.X1 = q.x1; glyph.Y1 = q.y1;
+ glyph.U0 = q.s0; glyph.V0 = q.t0; glyph.U1 = q.s1; glyph.V1 = q.t1;
+ glyph.Y0 += (float)(int)(dst_font->Ascent + off_y + 0.5f);
+ glyph.Y1 += (float)(int)(dst_font->Ascent + off_y + 0.5f);
+ glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance
+ if (cfg.PixelSnapH)
+ glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f);
+ }
+ }
+ cfg.DstFont->BuildLookupTable();
+ }
+
+ // Cleanup temporaries
+ ImGui::MemFree(buf_packedchars);
+ ImGui::MemFree(buf_ranges);
+ ImGui::MemFree(tmp_array);
+
+ // Render into our custom data block
+ RenderCustomTexData(1, &extra_rects);
+
+ return true;
+}
+
+void ImFontAtlas::RenderCustomTexData(int pass, void* p_rects)
+{
+ // 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 ImGui to render filled shapes.
+ const int TEX_DATA_W = 90;
+ const int TEX_DATA_H = 27;
+ const char texture_data[TEX_DATA_W*TEX_DATA_H+1] =
+ {
+ "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX"
+ "..- -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"
+ "XX - 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..X - X.X - X.X - X.X -XX X.X - X.X XX"
+ "X...X - X.X - X.X - 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 - X.X - X..X X.X X..X - X.X - X.X "
+ "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-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...XXXXXX.XXXXXX...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......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X "
+ "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX "
+ "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------"
+ "X.X X..X - -X.......X- X.......X - XX XX - "
+ "XX 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 - "
+ "------------ - X - X -X.....................X- "
+ " ----------------------------------- X...XXXXXXXXXXXXX...X - "
+ " - X..X X..X - "
+ " - X.X X.X - "
+ " - XX XX - "
+ };
+
+ ImVector<stbrp_rect>& rects = *(ImVector<stbrp_rect>*)p_rects;
+ if (pass == 0)
+ {
+ // Request rectangles
+ stbrp_rect r;
+ memset(&r, 0, sizeof(r));
+ r.w = (TEX_DATA_W*2)+1;
+ r.h = TEX_DATA_H+1;
+ rects.push_back(r);
+ }
+ else if (pass == 1)
+ {
+ // Render/copy pixels
+ const stbrp_rect& r = rects[0];
+ for (int y = 0, n = 0; y < TEX_DATA_H; y++)
+ for (int x = 0; x < TEX_DATA_W; x++, n++)
+ {
+ const int offset0 = (int)(r.x + x) + (int)(r.y + y) * TexWidth;
+ const int offset1 = offset0 + 1 + TEX_DATA_W;
+ TexPixelsAlpha8[offset0] = texture_data[n] == '.' ? 0xFF : 0x00;
+ TexPixelsAlpha8[offset1] = texture_data[n] == 'X' ? 0xFF : 0x00;
+ }
+ const ImVec2 tex_uv_scale(1.0f / TexWidth, 1.0f / TexHeight);
+ TexUvWhitePixel = ImVec2((r.x + 0.5f) * tex_uv_scale.x, (r.y + 0.5f) * tex_uv_scale.y);
+
+ // Setup mouse cursors
+ const ImVec2 cursor_datas[ImGuiMouseCursor_Count_][3] =
+ {
+ // Pos ........ Size ......... Offset ......
+ { ImVec2(0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
+ { ImVec2(13,0), ImVec2(7,16), ImVec2( 4, 8) }, // ImGuiMouseCursor_TextInput
+ { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_Move
+ { ImVec2(21,0), ImVec2( 9,23), ImVec2( 5,11) }, // ImGuiMouseCursor_ResizeNS
+ { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 5) }, // ImGuiMouseCursor_ResizeEW
+ { ImVec2(73,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNESW
+ { ImVec2(55,0), ImVec2(17,17), ImVec2( 9, 9) }, // ImGuiMouseCursor_ResizeNWSE
+ };
+
+ for (int type = 0; type < ImGuiMouseCursor_Count_; type++)
+ {
+ ImGuiMouseCursorData& cursor_data = GImGui->MouseCursorData[type];
+ ImVec2 pos = cursor_datas[type][0] + ImVec2((float)r.x, (float)r.y);
+ const ImVec2 size = cursor_datas[type][1];
+ cursor_data.Type = type;
+ cursor_data.Size = size;
+ cursor_data.HotOffset = cursor_datas[type][2];
+ cursor_data.TexUvMin[0] = (pos) * tex_uv_scale;
+ cursor_data.TexUvMax[0] = (pos + size) * tex_uv_scale;
+ pos.x += TEX_DATA_W+1;
+ cursor_data.TexUvMin[1] = (pos) * tex_uv_scale;
+ cursor_data.TexUvMax[1] = (pos + size) * tex_uv_scale;
+ }
+ }
+}
+
+// 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::GetGlyphRangesChinese()
+{
+ static const ImWchar ranges[] =
+ {
+ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
+ 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
+ 0x31F0, 0x31FF, // Katakana Phonetic Extensions
+ 0xFF00, 0xFFEF, // Half-width characters
+ 0x4e00, 0x9FAF, // CJK Ideograms
+ 0,
+ };
+ return &ranges[0];
+}
+
+const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
+{
+ // Store the 1946 ideograms code points as successive offsets from the initial unicode codepoint 0x4E00. Each offset has an implicit +1.
+ // This encoding helps us reduce the source code size.
+ static const short offsets_from_0x4E00[] =
+ {
+ -1,0,1,3,0,0,0,0,1,0,5,1,1,0,7,4,6,10,0,1,9,9,7,1,3,19,1,10,7,1,0,1,0,5,1,0,6,4,2,6,0,0,12,6,8,0,3,5,0,1,0,9,0,0,8,1,1,3,4,5,13,0,0,8,2,17,
+ 4,3,1,1,9,6,0,0,0,2,1,3,2,22,1,9,11,1,13,1,3,12,0,5,9,2,0,6,12,5,3,12,4,1,2,16,1,1,4,6,5,3,0,6,13,15,5,12,8,14,0,0,6,15,3,6,0,18,8,1,6,14,1,
+ 5,4,12,24,3,13,12,10,24,0,0,0,1,0,1,1,2,9,10,2,2,0,0,3,3,1,0,3,8,0,3,2,4,4,1,6,11,10,14,6,15,3,4,15,1,0,0,5,2,2,0,0,1,6,5,5,6,0,3,6,5,0,0,1,0,
+ 11,2,2,8,4,7,0,10,0,1,2,17,19,3,0,2,5,0,6,2,4,4,6,1,1,11,2,0,3,1,2,1,2,10,7,6,3,16,0,8,24,0,0,3,1,1,3,0,1,6,0,0,0,2,0,1,5,15,0,1,0,0,2,11,19,
+ 1,4,19,7,6,5,1,0,0,0,0,5,1,0,1,9,0,0,5,0,2,0,1,0,3,0,11,3,0,2,0,0,0,0,0,9,3,6,4,12,0,14,0,0,29,10,8,0,14,37,13,0,31,16,19,0,8,30,1,20,8,3,48,
+ 21,1,0,12,0,10,44,34,42,54,11,18,82,0,2,1,2,12,1,0,6,2,17,2,12,7,0,7,17,4,2,6,24,23,8,23,39,2,16,23,1,0,5,1,2,15,14,5,6,2,11,0,8,6,2,2,2,14,
+ 20,4,15,3,4,11,10,10,2,5,2,1,30,2,1,0,0,22,5,5,0,3,1,5,4,1,0,0,2,2,21,1,5,1,2,16,2,1,3,4,0,8,4,0,0,5,14,11,2,16,1,13,1,7,0,22,15,3,1,22,7,14,
+ 22,19,11,24,18,46,10,20,64,45,3,2,0,4,5,0,1,4,25,1,0,0,2,10,0,0,0,1,0,1,2,0,0,9,1,2,0,0,0,2,5,2,1,1,5,5,8,1,1,1,5,1,4,9,1,3,0,1,0,1,1,2,0,0,
+ 2,0,1,8,22,8,1,0,0,0,0,4,2,1,0,9,8,5,0,9,1,30,24,2,6,4,39,0,14,5,16,6,26,179,0,2,1,1,0,0,0,5,2,9,6,0,2,5,16,7,5,1,1,0,2,4,4,7,15,13,14,0,0,
+ 3,0,1,0,0,0,2,1,6,4,5,1,4,9,0,3,1,8,0,0,10,5,0,43,0,2,6,8,4,0,2,0,0,9,6,0,9,3,1,6,20,14,6,1,4,0,7,2,3,0,2,0,5,0,3,1,0,3,9,7,0,3,4,0,4,9,1,6,0,
+ 9,0,0,2,3,10,9,28,3,6,2,4,1,2,32,4,1,18,2,0,3,1,5,30,10,0,2,2,2,0,7,9,8,11,10,11,7,2,13,7,5,10,0,3,40,2,0,1,6,12,0,4,5,1,5,11,11,21,4,8,3,7,
+ 8,8,33,5,23,0,0,19,8,8,2,3,0,6,1,1,1,5,1,27,4,2,5,0,3,5,6,3,1,0,3,1,12,5,3,3,2,0,7,7,2,1,0,4,0,1,1,2,0,10,10,6,2,5,9,7,5,15,15,21,6,11,5,20,
+ 4,3,5,5,2,5,0,2,1,0,1,7,28,0,9,0,5,12,5,5,18,30,0,12,3,3,21,16,25,32,9,3,14,11,24,5,66,9,1,2,0,5,9,1,5,1,8,0,8,3,3,0,1,15,1,4,8,1,2,7,0,7,2,
+ 8,3,7,5,3,7,10,2,1,0,0,2,25,0,6,4,0,10,0,4,2,4,1,12,5,38,4,0,4,1,10,5,9,4,0,14,4,2,5,18,20,21,1,3,0,5,0,7,0,3,7,1,3,1,1,8,1,0,0,0,3,2,5,2,11,
+ 6,0,13,1,3,9,1,12,0,16,6,2,1,0,2,1,12,6,13,11,2,0,28,1,7,8,14,13,8,13,0,2,0,5,4,8,10,2,37,42,19,6,6,7,4,14,11,18,14,80,7,6,0,4,72,12,36,27,
+ 7,7,0,14,17,19,164,27,0,5,10,7,3,13,6,14,0,2,2,5,3,0,6,13,0,0,10,29,0,4,0,3,13,0,3,1,6,51,1,5,28,2,0,8,0,20,2,4,0,25,2,10,13,10,0,16,4,0,1,0,
+ 2,1,7,0,1,8,11,0,0,1,2,7,2,23,11,6,6,4,16,2,2,2,0,22,9,3,3,5,2,0,15,16,21,2,9,20,15,15,5,3,9,1,0,0,1,7,7,5,4,2,2,2,38,24,14,0,0,15,5,6,24,14,
+ 5,5,11,0,21,12,0,3,8,4,11,1,8,0,11,27,7,2,4,9,21,59,0,1,39,3,60,62,3,0,12,11,0,3,30,11,0,13,88,4,15,5,28,13,1,4,48,17,17,4,28,32,46,0,16,0,
+ 18,11,1,8,6,38,11,2,6,11,38,2,0,45,3,11,2,7,8,4,30,14,17,2,1,1,65,18,12,16,4,2,45,123,12,56,33,1,4,3,4,7,0,0,0,3,2,0,16,4,2,4,2,0,7,4,5,2,26,
+ 2,25,6,11,6,1,16,2,6,17,77,15,3,35,0,1,0,5,1,0,38,16,6,3,12,3,3,3,0,9,3,1,3,5,2,9,0,18,0,25,1,3,32,1,72,46,6,2,7,1,3,14,17,0,28,1,40,13,0,20,
+ 15,40,6,38,24,12,43,1,1,9,0,12,6,0,6,2,4,19,3,7,1,48,0,9,5,0,5,6,9,6,10,15,2,11,19,3,9,2,0,1,10,1,27,8,1,3,6,1,14,0,26,0,27,16,3,4,9,6,2,23,
+ 9,10,5,25,2,1,6,1,1,48,15,9,15,14,3,4,26,60,29,13,37,21,1,6,4,0,2,11,22,23,16,16,2,2,1,3,0,5,1,6,4,0,0,4,0,0,8,3,0,2,5,0,7,1,7,3,13,2,4,10,
+ 3,0,2,31,0,18,3,0,12,10,4,1,0,7,5,7,0,5,4,12,2,22,10,4,2,15,2,8,9,0,23,2,197,51,3,1,1,4,13,4,3,21,4,19,3,10,5,40,0,4,1,1,10,4,1,27,34,7,21,
+ 2,17,2,9,6,4,2,3,0,4,2,7,8,2,5,1,15,21,3,4,4,2,2,17,22,1,5,22,4,26,7,0,32,1,11,42,15,4,1,2,5,0,19,3,1,8,6,0,10,1,9,2,13,30,8,2,24,17,19,1,4,
+ 4,25,13,0,10,16,11,39,18,8,5,30,82,1,6,8,18,77,11,13,20,75,11,112,78,33,3,0,0,60,17,84,9,1,1,12,30,10,49,5,32,158,178,5,5,6,3,3,1,3,1,4,7,6,
+ 19,31,21,0,2,9,5,6,27,4,9,8,1,76,18,12,1,4,0,3,3,6,3,12,2,8,30,16,2,25,1,5,5,4,3,0,6,10,2,3,1,0,5,1,19,3,0,8,1,5,2,6,0,0,0,19,1,2,0,5,1,2,5,
+ 1,3,7,0,4,12,7,3,10,22,0,9,5,1,0,2,20,1,1,3,23,30,3,9,9,1,4,191,14,3,15,6,8,50,0,1,0,0,4,0,0,1,0,2,4,2,0,2,3,0,2,0,2,2,8,7,0,1,1,1,3,3,17,11,
+ 91,1,9,3,2,13,4,24,15,41,3,13,3,1,20,4,125,29,30,1,0,4,12,2,21,4,5,5,19,11,0,13,11,86,2,18,0,7,1,8,8,2,2,22,1,2,6,5,2,0,1,2,8,0,2,0,5,2,1,0,
+ 2,10,2,0,5,9,2,1,2,0,1,0,4,0,0,10,2,5,3,0,6,1,0,1,4,4,33,3,13,17,3,18,6,4,7,1,5,78,0,4,1,13,7,1,8,1,0,35,27,15,3,0,0,0,1,11,5,41,38,15,22,6,
+ 14,14,2,1,11,6,20,63,5,8,27,7,11,2,2,40,58,23,50,54,56,293,8,8,1,5,1,14,0,1,12,37,89,8,8,8,2,10,6,0,0,0,4,5,2,1,0,1,1,2,7,0,3,3,0,4,6,0,3,2,
+ 19,3,8,0,0,0,4,4,16,0,4,1,5,1,3,0,3,4,6,2,17,10,10,31,6,4,3,6,10,126,7,3,2,2,0,9,0,0,5,20,13,0,15,0,6,0,2,5,8,64,50,3,2,12,2,9,0,0,11,8,20,
+ 109,2,18,23,0,0,9,61,3,0,28,41,77,27,19,17,81,5,2,14,5,83,57,252,14,154,263,14,20,8,13,6,57,39,38,
+ };
+ static ImWchar base_ranges[] =
+ {
+ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
+ 0x3000, 0x30FF, // Punctuations, Hiragana, Katakana
+ 0x31F0, 0x31FF, // Katakana Phonetic Extensions
+ 0xFF00, 0xFFEF, // Half-width characters
+ };
+ static bool full_ranges_unpacked = false;
+ static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(offsets_from_0x4E00)*2 + 1];
+ if (!full_ranges_unpacked)
+ {
+ // Unpack
+ int codepoint = 0x4e00;
+ memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+ ImWchar* dst = full_ranges + IM_ARRAYSIZE(base_ranges);;
+ for (int n = 0; n < IM_ARRAYSIZE(offsets_from_0x4E00); n++, dst += 2)
+ dst[0] = dst[1] = (ImWchar)(codepoint += (offsets_from_0x4E00[n] + 1));
+ dst[0] = 0;
+ full_ranges_unpacked = true;
+ }
+ 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];
+}
+
+//-----------------------------------------------------------------------------
+// ImFont
+//-----------------------------------------------------------------------------
+
+ImFont::ImFont()
+{
+ Scale = 1.0f;
+ FallbackChar = (ImWchar)'?';
+ Clear();
+}
+
+ImFont::~ImFont()
+{
+ // Invalidate active font so that the user gets a clear crash instead of a dangling pointer.
+ // If you want to delete fonts you need to do it between Render() and NewFrame().
+ // FIXME-CLEANUP
+ /*
+ ImGuiContext& g = *GImGui;
+ if (g.Font == this)
+ g.Font = NULL;
+ */
+ Clear();
+}
+
+void ImFont::Clear()
+{
+ FontSize = 0.0f;
+ DisplayOffset = ImVec2(0.0f, 1.0f);
+ ConfigData = NULL;
+ ConfigDataCount = 0;
+ Ascent = Descent = 0.0f;
+ ContainerAtlas = NULL;
+ Glyphs.clear();
+ FallbackGlyph = NULL;
+ FallbackXAdvance = 0.0f;
+ IndexXAdvance.clear();
+ IndexLookup.clear();
+}
+
+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 < 32*1024);
+ IndexXAdvance.clear();
+ IndexLookup.clear();
+ GrowIndex(max_codepoint + 1);
+ for (int i = 0; i < Glyphs.Size; i++)
+ {
+ int codepoint = (int)Glyphs[i].Codepoint;
+ IndexXAdvance[codepoint] = Glyphs[i].XAdvance;
+ IndexLookup[codepoint] = (short)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((unsigned short)' '))
+ {
+ if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times
+ Glyphs.resize(Glyphs.Size + 1);
+ ImFont::Glyph& tab_glyph = Glyphs.back();
+ tab_glyph = *FindGlyph((unsigned short)' ');
+ tab_glyph.Codepoint = '\t';
+ tab_glyph.XAdvance *= 4;
+ IndexXAdvance[(int)tab_glyph.Codepoint] = (float)tab_glyph.XAdvance;
+ IndexLookup[(int)tab_glyph.Codepoint] = (short)(Glyphs.Size-1);
+ }
+
+ FallbackGlyph = NULL;
+ FallbackGlyph = FindGlyph(FallbackChar);
+ FallbackXAdvance = FallbackGlyph ? FallbackGlyph->XAdvance : 0.0f;
+ for (int i = 0; i < max_codepoint + 1; i++)
+ if (IndexXAdvance[i] < 0.0f)
+ IndexXAdvance[i] = FallbackXAdvance;
+}
+
+void ImFont::SetFallbackChar(ImWchar c)
+{
+ FallbackChar = c;
+ BuildLookupTable();
+}
+
+void ImFont::GrowIndex(int new_size)
+{
+ IM_ASSERT(IndexXAdvance.Size == IndexLookup.Size);
+ int old_size = IndexLookup.Size;
+ if (new_size <= old_size)
+ return;
+ IndexXAdvance.resize(new_size);
+ IndexLookup.resize(new_size);
+ for (int i = old_size; i < new_size; i++)
+ {
+ IndexXAdvance[i] = -1.0f;
+ IndexLookup[i] = (short)-1;
+ }
+}
+
+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] == -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] : -1;
+ IndexXAdvance[dst] = (src < index_size) ? IndexXAdvance.Data[src] : 1.0f;
+}
+
+const ImFont::Glyph* ImFont::FindGlyph(unsigned short c) const
+{
+ if (c < IndexLookup.Size)
+ {
+ const short i = IndexLookup[c];
+ if (i != -1)
+ return &Glyphs.Data[i];
+ }
+ return FallbackGlyph;
+}
+
+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;
+
+ 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 < IndexXAdvance.Size) ? IndexXAdvance[(int)c] * scale : FallbackXAdvance;
+ if (ImCharIsSpace(c))
+ {
+ if (inside_word)
+ {
+ line_width += blank_width;
+ blank_width = 0.0f;
+ }
+ 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 (ImCharIsSpace(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)
+ 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 < IndexXAdvance.Size ? IndexXAdvance[(int)c] : FallbackXAdvance) * 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, unsigned short c) const
+{
+ if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
+ return;
+ if (const Glyph* 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;
+ ImVec2 pos_tl(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale);
+ ImVec2 pos_br(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale);
+ draw_list->PrimReserve(6, 4);
+ draw_list->PrimRectUV(pos_tl, pos_br, 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);
+
+ // 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;
+
+ // Skip non-visible lines
+ const char* s = text_begin;
+ if (!word_wrap_enabled && y + line_height < clip_rect.y)
+ while (s < text_end && *s != '\n') // Fast-forward to next line
+ s++;
+
+ // 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 (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 (ImCharIsSpace(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)
+ break;
+ }
+
+ if (c < 32)
+ {
+ if (c == '\n')
+ {
+ x = pos.x;
+ y += line_height;
+
+ if (y > clip_rect.w)
+ break;
+ if (!word_wrap_enabled && y + line_height < clip_rect.y)
+ while (s < text_end && *s != '\n') // Fast-forward to next line
+ s++;
+ continue;
+ }
+ if (c == '\r')
+ continue;
+ }
+
+ float char_width = 0.0f;
+ if (const Glyph* glyph = FindGlyph((unsigned short)c))
+ {
+ char_width = glyph->XAdvance * 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 build.
+ // 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 = (unsigned int)draw_list->VtxBuffer.Size;
+}
+
+//-----------------------------------------------------------------------------
+// DEFAULT FONT DATA
+//-----------------------------------------------------------------------------
+// Compressed with stb_compress() then converted to a C array.
+// Use the program in extra_fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
+// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
+//-----------------------------------------------------------------------------
+
+static unsigned int stb_decompress_length(unsigned char *input)
+{
+ return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
+}
+
+static unsigned char *stb__barrier, *stb__barrier2, *stb__barrier3, *stb__barrier4;
+static unsigned char *stb__dout;
+static void stb__match(unsigned char *data, unsigned int length)
+{
+ // INVERSE of memmove... write each byte before copying the next...
+ IM_ASSERT (stb__dout + length <= stb__barrier);
+ if (stb__dout + length > stb__barrier) { stb__dout += length; return; }
+ if (data < stb__barrier4) { stb__dout = stb__barrier+1; return; }
+ while (length--) *stb__dout++ = *data++;
+}
+
+static void stb__lit(unsigned char *data, unsigned int length)
+{
+ IM_ASSERT (stb__dout + length <= stb__barrier);
+ if (stb__dout + length > stb__barrier) { stb__dout += length; return; }
+ if (data < stb__barrier2) { stb__dout = stb__barrier+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 unsigned char *stb_decompress_token(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, 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__barrier2 = i;
+ stb__barrier3 = i+length;
+ stb__barrier = output + olen;
+ stb__barrier4 = output;
+ i += 16;
+
+ stb__dout = output;
+ for (;;) {
+ 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;
+ }
+}
+
+//-----------------------------------------------------------------------------
+// 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 binary_to_compressed_c.cpp
+//-----------------------------------------------------------------------------
+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$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
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+ "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
+ "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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-20 07:43:17 +0000