public VertexStore CreateVxs(char[] buffer, double x = 0, double y = 0)
{
int j = buffer.Length;
int buffsize = j * 2;
//get kerning list
ProperGlyph[] properGlyphs = new ProperGlyph[buffsize];
currentFont.GetGlyphPos(buffer, 0, buffsize, properGlyphs);
VertexStore resultVxs = new VertexStore();
double xpos = x;
for (int i = 0; i < buffsize; ++i)
{
uint codepoint = properGlyphs[i].codepoint;
if (codepoint == 0)
{
break;
}
//-------------------------------------------------------------
FontGlyph glyph = this.currentFont.GetGlyphByIndex(codepoint);
var left = glyph.exportGlyph.img_horiBearingX;
//--------------------------------------------------------
VertexStore vxs1 = Agg.Transform.Affine.TranslateToVxs(
glyph.flattenVxs,
(float)(xpos),
(float)(y));
//--------------------------------------------------------
resultVxs.AddSubVertices(vxs1);
int w = (glyph.exportGlyph.advanceX) >> 6;
xpos += (w);
//-------------------------------------------------------------
}
return(resultVxs);
}
public void Print(CanvasPainter painter, char[] buffer, double x, double y)
{
int j = buffer.Length;
int buffsize = j * 2;
//get kerning list
ProperGlyph[] properGlyphs = new ProperGlyph[buffsize];
currentFont.GetGlyphPos(buffer, 0, buffsize, properGlyphs);
double xpos = x;
for (int i = 0; i < buffsize; ++i)
{
uint codepoint = properGlyphs[i].codepoint;
if (codepoint == 0)
{
break;
}
//-------------------------------------------------------------
FontGlyph glyph = this.currentFont.GetGlyphByIndex(codepoint);
var left = glyph.exportGlyph.img_horiBearingX;
//--------------------------------------------------------
//render with vector
//var mat = Agg.Transform.Affine.NewMatix(
//Agg.Transform.AffinePlan.Scale(0.30),
//Agg.Transform.AffinePlan.Translate(xpos, y));
//var vxs1 = mat.TransformToVxs(glyph.flattenVxs);
VertexStore vxs1 = Agg.Transform.Affine.TranslateToVxs(
glyph.flattenVxs,
(float)(xpos),
(float)(y));
painter.Fill(vxs1);
//--------------------------------------------------------
////render with bitmap
//this.painter.DrawImage(glyph.glyphImage32,
// (float)(xpos + (left >> 6)),
// (float)(y + (glyph.exportGlyph.bboxYmin >> 6)));
int w = (glyph.exportGlyph.advanceX) >> 6;
xpos += (w);
//-------------------------------------------------------------
}
}
protected override void GetGlyphPosImpl(ActualFont actualFont, char[] buffer,
int startAt, int len,
List <GlyphPlan> glyphPlans)
{
NativeFont nativeFont = actualFont as NativeFont;
if (nativeFont == null)
{
nativeFont = ResolveForNativeFont(actualFont);
}
unsafe
{
//TODO: review proper array size here
int lim = len * 2;
ProperGlyph *properGlyphArray = stackalloc ProperGlyph[lim];
fixed(char *head = &buffer[0])
{
//we use font shaping engine here
NativeMyFontsLib.MyFtShaping(
nativeFont.NativeFontFace.HBFont,
head,
buffer.Length,
properGlyphArray);
}
//copy from proper glyph to
//create glyph plan
for (int i = 0; i < lim; ++i)
{
ProperGlyph propGlyph = properGlyphArray[i];
if (propGlyph.codepoint == 0)
{
//finish , just return
return;
}
GlyphPlan plan = new GlyphPlan((ushort)propGlyph.codepoint);
plan.advX = propGlyph.x_advance;
glyphPlans.Add(plan);
}
}
}
