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ImFont: Demo, Store Used4kPagesMap[] map in ImFont to facilitate iteration on all codepoints with a large value of IM_UNICODE_CODEPOINT_MAX. (#2815)
Demo uses IsGlyphRangeUnused()
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2
imgui.h
2
imgui.h
@ -2257,6 +2257,7 @@ struct ImFont
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float Scale; // 4 // in // = 1.f // Base font scale, multiplied by the per-window font scale which you can adjust with SetWindowFontScale()
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float Ascent, Descent; // 4+4 // out // // Ascent: distance from top to bottom of e.g. 'A' [0..FontSize]
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int MetricsTotalSurface;// 4 // out // // Total surface in pixels to get an idea of the font rasterization/texture cost (not exact, we approximate the cost of padding between glyphs)
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ImU8 Used4kPagesMap[(IM_UNICODE_CODEPOINT_MAX+1)/4096/8]; // 2 bytes if ImWchar=ImWchar16, 34 bytes if ImWchar==ImWchar32. Store 1-bit for each block of 4K codepoints that has one active glyph. This is mainly used to facilitate iterations accross all used codepoints.
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// Methods
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IMGUI_API ImFont();
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@ -2282,6 +2283,7 @@ struct ImFont
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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.
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IMGUI_API void SetGlyphVisible(ImWchar c, bool visible);
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IMGUI_API void SetFallbackChar(ImWchar c);
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IMGUI_API bool IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last);
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};
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#if defined(__clang__)
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