public TextShapingContext(Typeface typeface, ScriptLang scLang)
{
_typeface = typeface;
_scLang = scLang;
_glyphPlanBuffer = new GlyphPlanBuffer(new GlyphPlanList());
_glyphPlanSeqSet = new GlyphPlanSeqSet();
}
GlyphPlanSequence CreateGlyphPlanSeq(GlyphLayout glyphLayout, TextBuffer buffer, int startAt, int len)
{
GlyphPlanList planList = GlyphPlanBuffer.UnsafeGetGlyphPlanList(_glyphPlanBuffer);
int pre_count = planList.Count;
glyphLayout.Typeface = _typeface;
glyphLayout.ScriptLang = _scLang;
glyphLayout.Layout(
TextBuffer.UnsafeGetCharBuffer(buffer),
startAt,
len);
int post_count = planList.Count;
return(new GlyphPlanSequence(_glyphPlanBuffer, pre_count, post_count - pre_count));
}
