public bool TextIterNext(FontTextIterator iter, FontGlyphSquad *quad)
{
iter.Str = iter.Next;
if (iter.Str.IsNullOrEmpty)
{
return(false);
}
iter.Codepoint = Char.ConvertToUtf32(iter.Str.String, iter.Str.Location);
iter.X = iter.NextX;
iter.Y = iter.NextY;
var glyph = GetGlyph(iter.Font, iter.Codepoint, iter.iSize, iter.iBlur, iter.BitmapOption);
if (glyph != null)
{
GetQuad(iter.Font, iter.PrevGlyphIndex, glyph, iter.Scale, iter.Spacing, ref iter.NextX, ref iter.NextY,
quad);
}
iter.PrevGlyphIndex = glyph != null ? glyph->Index : -1;
if (Char.IsSurrogatePair(iter.Str.String, iter.Str.Location))
{
iter.Next.Location += 2;
}
else
{
++iter.Next.Location;
}
return(true);
}
public void GetQuad(Font font, int prevGlyphIndex, FontGlyph *glyph, float scale, float spacing, ref float x,
ref float y, FontGlyphSquad *q)
{
float rx = 0;
float ry = 0;
float xoff = 0;
float yoff = 0;
float x0 = 0;
float y0 = 0;
float x1 = 0;
float y1 = 0;
if (prevGlyphIndex != -1)
{
var adv = font.FontInfo.__tt_getGlyphKernAdvance(prevGlyphIndex, glyph->Index) * scale;
x += (int)(adv + spacing + 0.5f);
}
xoff = (short)(glyph->XOffset + 1);
yoff = (short)(glyph->YOffset + 1);
x0 = glyph->X0 + 1;
y0 = glyph->Y0 + 1;
x1 = glyph->X1 - 1;
y1 = glyph->Y1 - 1;
if ((_params_.Flags & FONS_ZERO_TOPLEFT) != 0)
{
rx = (int)(x + xoff);
ry = (int)(y + yoff);
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + x1 - x0;
q->Y1 = ry + y1 - y0;
q->S0 = x0 * _itw;
q->T0 = y0 * _ith;
q->S1 = x1 * _itw;
q->T1 = y1 * _ith;
}
else
{
rx = (int)(x + xoff);
ry = (int)(y - yoff);
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + x1 - x0;
q->Y1 = ry - y1 + y0;
q->S0 = x0 * _itw;
q->T0 = y0 * _ith;
q->S1 = x1 * _itw;
q->T1 = y1 * _ith;
}
x += (int)(glyph->XAdvance / 10.0f + 0.5f);
}
private void GetQuad(Font font, int prevGlyphIndex, FontGlyph glyph, float scale,
float spacing, ref float x, ref float y, FontGlyphSquad *q)
{
if (prevGlyphIndex != -1)
{
float adv = 0;
if (UseKernings)
{
adv = font.GetKerning(prevGlyphIndex, glyph.Index) * scale;
}
x += (int)(adv + spacing + 0.5f);
}
float rx = 0;
float ry = 0;
if (_params_.IsAlignmentTopLeft)
{
rx = x + glyph.XOffset;
ry = y + glyph.YOffset;
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + (glyph.X1 - glyph.X0);
q->Y1 = ry + (glyph.Y1 - glyph.Y0);
q->S0 = glyph.X0 * _itw;
q->T0 = glyph.Y0 * _ith;
q->S1 = glyph.X1 * _itw;
q->T1 = glyph.Y1 * _ith;
}
else
{
rx = x + glyph.XOffset;
ry = y - glyph.YOffset;
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + (glyph.X1 - glyph.X0);
q->Y1 = ry - (glyph.Y1 + glyph.Y0);
q->S0 = glyph.X0 * _itw;
q->T0 = glyph.Y0 * _ith;
q->S1 = glyph.X1 * _itw;
q->T1 = glyph.Y1 * _ith;
}
x += (int)(glyph.XAdvance / 10.0f + 0.5f);
}
private void GetQuad(Font font, int prevGlyphIndex, FontGlyph glyph, float scale,
float spacing, ref float x, ref float y, FontGlyphSquad *q)
{
if (prevGlyphIndex != -1)
{
var adv = font._font.fons__tt_getGlyphKernAdvance(prevGlyphIndex, glyph.Index) * scale;
x += (int)(adv + spacing + 0.5f);
}
float rx = 0;
float ry = 0;
if ((_params_.Flags & FONS_ZERO_TOPLEFT) != 0)
{
rx = x + glyph.XOffset;
ry = y + glyph.YOffset;
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + (glyph.X1 - glyph.X0);
q->Y1 = ry + (glyph.Y1 - glyph.Y0);
q->S0 = glyph.X0 * _itw;
q->T0 = glyph.Y0 * _ith;
q->S1 = glyph.X1 * _itw;
q->T1 = glyph.Y1 * _ith;
}
else
{
rx = x + glyph.XOffset;
ry = y - glyph.YOffset;
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + (glyph.X1 - glyph.X0);
q->Y1 = ry - (glyph.Y1 + glyph.Y0);
q->S0 = glyph.X0 * _itw;
q->T0 = glyph.Y0 * _ith;
q->S1 = glyph.X1 * _itw;
q->T1 = glyph.Y1 * _ith;
}
x += (int)(glyph.XAdvance / 10.0f + 0.5f);
}
void GetQuad(FontGlyph glyph, FontGlyph prevGlyph, GlyphCollection collection, float spacing, ref float x, ref float y, FontGlyphSquad *q)
{
if (prevGlyph != null)
{
float adv = 0;
if (UseKernings && glyph.Font == prevGlyph.Font)
{
adv = prevGlyph.Font.GetGlyphKernAdvance(prevGlyph.Index, glyph.Index) * glyph.Font.Scale;
}
x += (int)(adv + spacing + 0.5f);
}
float rx = 0;
float ry = 0;
rx = x + glyph.XOffset;
ry = y + glyph.YOffset;
q->X0 = rx;
q->Y0 = ry;
q->X1 = rx + glyph.Bounds.Width;
q->Y1 = ry + glyph.Bounds.Height;
q->S0 = glyph.Bounds.X * _itw;
q->T0 = glyph.Bounds.Y * _ith;
q->S1 = glyph.Bounds.Right * _itw;
q->T1 = glyph.Bounds.Bottom * _ith;
x += (int)(glyph.XAdvance / 10.0f + 0.5f);
}
