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Expose CopyGlyphsAcrossFonts (#824)

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kizer 2022-05-12 17:46:50 +09:00 • committed by GitHub
parent 9413755ee3
commit d68b3a1845
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4 changed files with 166 additions and 143 deletions
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94
Dalamud/Utility/Util.cs
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@ -526,6 +526,65 @@ namespace Dalamud.Utility
Process.Start(process);
}
/// <summary>
/// Fills missing glyphs in target font from source font, if both are not null.
/// </summary>
/// <param name="source">Source font.</param>
/// <param name="target">Target font.</param>
/// <param name="missingOnly">Whether to copy missing glyphs only.</param>
/// <param name="rebuildLookupTable">Whether to call target.BuildLookupTable().</param>
/// <param name="rangeLow">Low codepoint range to copy.</param>
/// <param name="rangeHigh">High codepoing range to copy.</param>
public static void CopyGlyphsAcrossFonts(ImFontPtr? source, ImFontPtr? target, bool missingOnly, bool rebuildLookupTable, int rangeLow = 32, int rangeHigh = 0xFFFE)
{
if (!source.HasValue || !target.HasValue)
return;
var scale = target.Value!.FontSize / source.Value!.FontSize;
unsafe
{
var glyphs = (ImFontGlyphReal*)source.Value!.Glyphs.Data;
for (int j = 0, j_ = source.Value!.Glyphs.Size; j < j_; j++)
{
var glyph = &glyphs[j];
if (glyph->Codepoint < rangeLow || glyph->Codepoint > rangeHigh)
continue;
var prevGlyphPtr = (ImFontGlyphReal*)target.Value!.FindGlyphNoFallback((ushort)glyph->Codepoint).NativePtr;
if ((IntPtr)prevGlyphPtr == IntPtr.Zero)
{
target.Value!.AddGlyph(
target.Value!.ConfigData,
(ushort)glyph->Codepoint,
glyph->X0 * scale,
((glyph->Y0 - source.Value!.Ascent) * scale) + target.Value!.Ascent,
glyph->X1 * scale,
((glyph->Y1 - source.Value!.Ascent) * scale) + target.Value!.Ascent,
glyph->U0,
glyph->V0,
glyph->U1,
glyph->V1,
glyph->AdvanceX * scale);
}
else if (!missingOnly)
{
prevGlyphPtr->X0 = glyph->X0 * scale;
prevGlyphPtr->Y0 = ((glyph->Y0 - source.Value!.Ascent) * scale) + target.Value!.Ascent;
prevGlyphPtr->X1 = glyph->X1 * scale;
prevGlyphPtr->Y1 = ((glyph->Y1 - source.Value!.Ascent) * scale) + target.Value!.Ascent;
prevGlyphPtr->U0 = glyph->U0;
prevGlyphPtr->V0 = glyph->V0;
prevGlyphPtr->U1 = glyph->U1;
prevGlyphPtr->V1 = glyph->V1;
prevGlyphPtr->AdvanceX = glyph->AdvanceX * scale;
}
}
}
if (rebuildLookupTable)
target.Value!.BuildLookupTable();
}
/// <summary>
/// Dispose this object.
/// </summary>
@ -590,5 +649,40 @@ namespace Dalamud.Utility
}
}
}
/// <summary>
/// ImFontGlyph the correct version.
/// </summary>
public struct ImFontGlyphReal
{
public uint ColoredVisibleCodepoint;
public float AdvanceX;
public float X0;
public float Y0;
public float X1;
public float Y1;
public float U0;
public float V0;
public float U1;
public float V1;
public bool Colored
{
get => ((this.ColoredVisibleCodepoint >> 0) & 1) != 0;
set => this.ColoredVisibleCodepoint = (this.ColoredVisibleCodepoint & 0xFFFFFFFEu) | (value ? 1u : 0u);
}
public bool Visible
{
get => ((this.ColoredVisibleCodepoint >> 1) & 1) != 0;
set => this.ColoredVisibleCodepoint = (this.ColoredVisibleCodepoint & 0xFFFFFFFDu) | (value ? 2u : 0u);
}
public int Codepoint
{
get => (int)(this.ColoredVisibleCodepoint >> 2);
set => this.ColoredVisibleCodepoint = (this.ColoredVisibleCodepoint & 3u) | ((uint)this.Codepoint << 2);
}
}
}
}