public void DrawString(char[] text, int startAt, int len, double x, double y)
{
UpdateGlyphLayoutSettings();
_outputGlyphPlans.Clear();
//
float pxscale = _currentTypeface.CalculateToPixelScaleFromPointSize(this.FontSizeInPoints);
_glyphLayout.GenerateGlyphPlans(text, startAt, len, _outputGlyphPlans, null);
//-----
//we (fine) adjust horizontal fit here
//-----
DrawFromGlyphPlans(_outputGlyphPlans, (float)x, (float)y);
}
public override void DrawString(char[] textBuffer, int startAt, int len, float xpos, float ypos)
{
UpdateGlyphLayoutSettings();
_outputGlyphPlans.Clear();
_glyphLayout.GenerateGlyphPlans(textBuffer, startAt, len, _outputGlyphPlans, null);
DrawGlyphPlanList(_outputGlyphPlans, xpos, ypos);
}
/// <summary>
/// generate glyph run into a given textRun
/// </summary>
/// <param name="outputTextRun"></param>
/// <param name="charBuffer"></param>
/// <param name="start"></param>
/// <param name="len"></param>
public void GenerateGlyphRuns(TextRun outputTextRun, char[] charBuffer, int start, int len)
{
// layout glyphs with selected layout technique
float sizeInPoints = this.FontSizeInPoints;
outputTextRun.typeface = this.CurrentTypeFace;
outputTextRun.sizeInPoints = sizeInPoints;
//in this version we store original glyph into the mesh collection
//and then we scale it later, so I just specific font size=0 (you can use any value)
_glyphMeshCollection.SetCacheInfo(this.CurrentTypeFace, 0, this.HintTechnique);
outputGlyphPlans.Clear();
glyphLayout.Typeface = this.CurrentTypeFace;
glyphLayout.GenerateGlyphPlans(charBuffer, start, len, outputGlyphPlans, null);
// render each glyph
int planCount = outputGlyphPlans.Count;
for (var i = 0; i < planCount; ++i)
{
pathTranslator.Reset();
//----
//glyph path
//----
GlyphPlan glyphPlan = outputGlyphPlans[i];
//
//1. check if we have this glyph in cache?
//if yes, not need to build it again
ProcessedGlyph processGlyph;
float[] tessData = null;
if (!_glyphMeshCollection.TryGetCacheGlyph(glyphPlan.glyphIndex, out processGlyph))
{
//if not found the create a new one and register it
var writablePath = new WritablePath();
pathTranslator.SetOutput(writablePath);
currentGlyphPathBuilder.BuildFromGlyphIndex(glyphPlan.glyphIndex, sizeInPoints);
currentGlyphPathBuilder.ReadShapes(pathTranslator);
//-------
//do tess
int[] endContours;
float[] flattenPoints = _curveFlattener.Flatten(writablePath._points, out endContours);
int nTessElems;
tessData = _tessTool.TessPolygon(flattenPoints, endContours, out nTessElems);
//-------
processGlyph = new ProcessedGlyph(tessData, (ushort)nTessElems);
_glyphMeshCollection.RegisterCachedGlyph(glyphPlan.glyphIndex, processGlyph);
}
outputTextRun.AddGlyph(
new GlyphRun(glyphPlan,
processGlyph.tessData,
processGlyph.tessNElements));
}
}