Updated ImGui.

3rdparty/dear-imgui/imgui.cpp

@@ -15493,6 +15493,18 @@ static void MetricsHelpMarker(const char* desc)
 // [DEBUG] List fonts in a font atlas and display its texture
 void ImGui::ShowFontAtlas(ImFontAtlas* atlas)
 {
+    ImGuiContext& g = *GImGui;
+
+    Text("Read ");
+    SameLine(0, 0);
+    TextLinkOpenURL("https://www.dearimgui.com/faq/");
+    SameLine(0, 0);
+    Text(" for details on font loading.");
+
+    ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
+    Checkbox("Show font preview", &cfg->ShowFontPreview);
+
+    // Font list
     for (ImFont* font : atlas->Fonts)
     {
         PushID(font);
@@ -15501,7 +15513,6 @@ void ImGui::ShowFontAtlas(ImFontAtlas* atlas)
     }
     if (TreeNode("Font Atlas", "Font Atlas (%dx%d pixels)", atlas->TexWidth, atlas->TexHeight))
     {
-        ImGuiContext& g = *GImGui;
         PushStyleVar(ImGuiStyleVar_ImageBorderSize, ImMax(1.0f, g.Style.ImageBorderSize));
         ImageWithBg(atlas->TexID, ImVec2((float)atlas->TexWidth, (float)atlas->TexHeight), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f), ImVec4(0.0f, 0.0f, 0.0f, 1.0f));
         PopStyleVar();
@@ -16292,6 +16303,8 @@ void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, co
 // [DEBUG] Display details for a single font, called by ShowStyleEditor().
 void ImGui::DebugNodeFont(ImFont* font)
 {
+    ImGuiContext& g = *GImGui;
+    ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
     bool opened = TreeNode(font, "Font: \"%s\": %.2f px, %d glyphs, %d sources(s)",
         font->Sources ? font->Sources[0].Name : "", font->FontSize, font->Glyphs.Size, font->SourcesCount);
 
@@ -16299,9 +16312,12 @@ void ImGui::DebugNodeFont(ImFont* font)
     if (!opened)
         Indent();
     Indent();
-    PushFont(font);
-    Text("The quick brown fox jumps over the lazy dog");
-    PopFont();
+    if (cfg->ShowFontPreview)
+    {
+        PushFont(font);
+        Text("The quick brown fox jumps over the lazy dog");
+        PopFont();
+    }
     if (!opened)
     {
         Unindent();

3rdparty/dear-imgui/imgui.h

@@ -3540,7 +3540,7 @@ struct ImFont
     IMGUI_API void              ClearOutputData();
     IMGUI_API void              GrowIndex(int new_size);
     IMGUI_API void              AddGlyph(const ImFontConfig* src_cfg, ImWchar c, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x);
-    IMGUI_API void              AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst = true); // Makes 'dst' character/glyph points to 'src' character/glyph. Currently needs to be called AFTER fonts have been built.
+    IMGUI_API void              AddRemapChar(ImWchar from_codepoint, ImWchar to_codepoint, bool overwrite_dst);// , bool overwrite_dst = true); // Makes 'from_codepoint' character points to 'to_codepoint' character. Currently needs to be called AFTER fonts have been built.
     IMGUI_API bool              IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last);
 };
 

3rdparty/dear-imgui/imgui_demo.cpp

@@ -82,6 +82,7 @@ Index of this file:
 // [SECTION] DemoWindowWidgetsDisableBlocks()
 // [SECTION] DemoWindowWidgetsDragAndDrop()
 // [SECTION] DemoWindowWidgetsDragsAndSliders()
+// [SECTION] DemoWindowWidgetsFonts()
 // [SECTION] DemoWindowWidgetsImages()
 // [SECTION] DemoWindowWidgetsListBoxes()
 // [SECTION] DemoWindowWidgetsMultiComponents()
@@ -1719,6 +1720,24 @@ static void DemoWindowWidgetsDragsAndSliders()
     }
 }
 
+//-----------------------------------------------------------------------------
+// [SECTION] DemoWindowWidgetsFonts()
+//-----------------------------------------------------------------------------
+
+// Forward declare ShowFontAtlas() which isn't worth putting in public API yet
+namespace ImGui { IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas); }
+
+static void DemoWindowWidgetsFonts()
+{
+    IMGUI_DEMO_MARKER("Widgets/Fonts");
+    if (ImGui::TreeNode("Fonts"))
+    {
+        ImFontAtlas* atlas = ImGui::GetIO().Fonts;
+        ImGui::ShowFontAtlas(atlas);
+        ImGui::TreePop();
+    }
+}
+
 //-----------------------------------------------------------------------------
 // [SECTION] DemoWindowWidgetsImages()
 //-----------------------------------------------------------------------------
@@ -4182,6 +4201,7 @@ static void DemoWindowWidgets(ImGuiDemoWindowData* demo_data)
 
     DemoWindowWidgetsDragAndDrop();
     DemoWindowWidgetsDragsAndSliders();
+    DemoWindowWidgetsFonts();
     DemoWindowWidgetsImages();
     DemoWindowWidgetsListBoxes();
     DemoWindowWidgetsMultiComponents();

3rdparty/dear-imgui/imgui_draw.cpp

@@ -3885,19 +3885,19 @@ void ImFont::AddGlyph(const ImFontConfig* src, ImWchar codepoint, float x0, floa
     MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
 }
 
-void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
+void ImFont::AddRemapChar(ImWchar from_codepoint, ImWchar to_codepoint, 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.
     unsigned int index_size = (unsigned int)IndexLookup.Size;
 
-    if (dst < index_size && IndexLookup.Data[dst] == (ImU16)-1 && !overwrite_dst) // 'dst' already exists
+    if (from_codepoint < index_size && IndexLookup.Data[from_codepoint] == (ImU16)-1 && !overwrite_dst) // 'from_codepoint' already exists
         return;
-    if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
+    if (to_codepoint >= index_size && from_codepoint >= index_size) // both 'from_codepoint' and 'to_codepoint' don't exist -> no-op
         return;
 
-    GrowIndex(dst + 1);
-    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImU16)-1;
-    IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
+    GrowIndex(from_codepoint + 1);
+    IndexLookup[from_codepoint] = (to_codepoint < index_size) ? IndexLookup.Data[to_codepoint] : (ImU16)-1;
+    IndexAdvanceX[from_codepoint] = (to_codepoint < index_size) ? IndexAdvanceX.Data[to_codepoint] : 1.0f;
 }
 
 // Find glyph, return fallback if missing

3rdparty/dear-imgui/imgui_internal.h

@@ -2020,6 +2020,7 @@ struct ImGuiMetricsConfig
     int         ShowTablesRectsType = -1;
     int         HighlightMonitorIdx = -1;
     ImGuiID     HighlightViewportID = 0;
+    bool        ShowFontPreview = true;
 };
 
 struct ImGuiStackLevelInfo