void SplitJustifiedGlyphsIntoRuns(CanvasTextAnalyzer textAnalyzer, LayoutBox layoutBox, CanvasGlyph[] justifiedGlyphs, bool needsAdditionalJustificationCharacters)
{
int glyphIndex = 0;
float xPosition = (float)layoutBox.Rectangle.Right;
for (int i = 0; i < layoutBox.GlyphRuns.Count; i++)
{
if (layoutBox.GlyphRuns[i].Glyphs.Count == 0)
{
continue;
}
int originalGlyphCountForThisRun = layoutBox.GlyphRuns[i].Glyphs.Count;
if (needsAdditionalJustificationCharacters)
{
// Replace the glyph data, since justification can modify glyphs
CanvasGlyph[] justifiedGlyphsForThisGlyphRun = new CanvasGlyph[layoutBox.GlyphRuns[i].Glyphs.Count];
for (int j = 0; j < layoutBox.GlyphRuns[i].Glyphs.Count; j++)
{
justifiedGlyphsForThisGlyphRun[j] = justifiedGlyphs[glyphIndex + j];
}
CanvasCharacterRange range = layoutBox.GlyphRuns[i].GetRange();
var glyphRunClusterMap = layoutBox.GlyphRuns[i].GetClusterMap(range);
var glyphRunShaping = layoutBox.GlyphRuns[i].GetShaping();
CanvasGlyph[] newSetOfGlyphs = textAnalyzer.AddGlyphsAfterJustification(
layoutBox.GlyphRuns[i].FormattingSpan.FontFace,
layoutBox.GlyphRuns[i].FormattingSpan.FontSize,
layoutBox.GlyphRuns[i].FormattingSpan.Script,
glyphRunClusterMap,
layoutBox.GlyphRuns[i].Glyphs.ToArray(),
justifiedGlyphsForThisGlyphRun,
glyphRunShaping);
layoutBox.GlyphRuns[i].Glyphs = new List <CanvasGlyph>(newSetOfGlyphs);
}
else
{
for (int j = 0; j < layoutBox.GlyphRuns[i].Glyphs.Count; j++)
{
layoutBox.GlyphRuns[i].Glyphs[j] = justifiedGlyphs[glyphIndex + j];
}
}
glyphIndex += originalGlyphCountForThisRun;
}
}
void SplitJustifiedGlyphsIntoRuns(CanvasTextAnalyzer textAnalyzer, int startingGlyphRunIndex, int endingGlyphRunIndex, CanvasGlyph[] justifiedGlyphs, bool needsAdditionalJustificationCharacters)
{
int glyphIndex = 0;
float xPosition = glyphRuns[startingGlyphRunIndex].Position.X;
for (int i = startingGlyphRunIndex; i < endingGlyphRunIndex; ++i)
{
if (glyphRuns[i].Glyphs.Count == 0)
{
continue;
}
// Adjust glyph run positioning based on justification
glyphRuns[i].Position = new Vector2()
{
X = xPosition, Y = glyphRuns[i].Position.Y
};
// Update running total glyph run advance
for (int j = 0; j < glyphRuns[i].Glyphs.Count; j++)
{
xPosition += glyphRuns[i].Glyphs[j].Advance;
}
if (needsAdditionalJustificationCharacters)
{
// Replace the glyph data, since justification can modify glyphs
CanvasGlyph[] justifiedGlyphsForThisGlyphRun = new CanvasGlyph[glyphRuns[i].Glyphs.Count];
for (int j = 0; j < glyphRuns[i].Glyphs.Count; j++)
{
justifiedGlyphsForThisGlyphRun[j] = justifiedGlyphs[glyphIndex + j];
}
CanvasCharacterRange range = glyphRuns[i].GetRange();
var glyphRunClusterMap = glyphRuns[i].GetClusterMap(range);
var glyphRunShaping = glyphRuns[i].GetShaping();
CanvasGlyph[] newSetOfGlyphs = textAnalyzer.AddGlyphsAfterJustification(
glyphRuns[i].FormattingSpan.FontFace,
glyphRuns[i].FormattingSpan.FontSize,
glyphRuns[i].FormattingSpan.Script,
glyphRunClusterMap,
glyphRuns[i].Glyphs.ToArray(),
justifiedGlyphsForThisGlyphRun,
glyphRunShaping);
glyphRuns[i].Glyphs = new List <CanvasGlyph>(newSetOfGlyphs);
}
else
{
for (int j = 0; j < glyphRuns[i].Glyphs.Count; j++)
{
glyphRuns[i].Glyphs[j] = justifiedGlyphs[glyphIndex + j];
}
}
glyphIndex += glyphRuns[i].Glyphs.Count;
}
}