public int ComputeVisibleGlyphs(CharSequence str, int start, int end, float availableWidth)
{
BitmapFontData data = Data;
int index = start;
float width = 0;
Glyph lastGlyph = null;
availableWidth /= data.ScaleX;
for (; index < end; index++)
{
char ch = str[index];
Glyph g = data[ch];
if (g != null)
{
if (lastGlyph != null)
{
width += lastGlyph.GetKerning(ch);
}
if ((width + g.XAdvance) - availableWidth > .001f)
{
break;
}
width += g.XAdvance;
lastGlyph = g;
}
}
return(index - start);
}
public TextBounds GetBounds(CharSequence str, int start, int end)
{
BitmapFontData data = Data;
int width = 0;
Glyph lastGlyph = null;
while (start < end)
{
lastGlyph = data[str[start++]];
if (lastGlyph != null)
{
width = lastGlyph.XAdvance;
break;
}
}
while (start < end)
{
char ch = str[start++];
Glyph g = data[ch];
if (g != null)
{
width += lastGlyph.GetKerning(ch);
lastGlyph = g;
width += g.XAdvance;
}
}
return(new TextBounds()
{
Width = width * data.ScaleX,
Height = data.CapHeight,
});
}
private float AddToCache(CharSequence str, float x, float y, int start, int end)
{
float startX = x;
BitmapFont font = Font;
Glyph lastGlyph = null;
BitmapFontData data = font.Data;
if (data.ScaleX == 1 && data.ScaleY == 1)
{
while (start < end)
{
lastGlyph = data[str[start++]];
if (lastGlyph != null)
{
AddGlyph(lastGlyph, x + lastGlyph.XOffset, y + lastGlyph.YOffset, lastGlyph.Width, lastGlyph.Height);
x += lastGlyph.XAdvance;
break;
}
}
while (start < end)
{
char ch = str[start++];
Glyph g = data[ch];
if (g != null)
{
x += lastGlyph.GetKerning(ch);
lastGlyph = g;
AddGlyph(lastGlyph, x + g.XOffset, y + g.YOffset, g.Width, g.Height);
x += g.XAdvance;
}
}
}
else
{
float scaleX = data.ScaleX;
float scaleY = data.ScaleY;
while (start < end)
{
lastGlyph = data[str[start++]];
if (lastGlyph != null)
{
AddGlyph(lastGlyph, x + lastGlyph.XOffset * scaleX, y + lastGlyph.YOffset * scaleY,
lastGlyph.Width * scaleX, lastGlyph.Height * scaleY);
x += lastGlyph.XAdvance * scaleX;
}
}
while (start < end)
{
char ch = str[start++];
Glyph g = data[ch];
if (g != null)
{
x += lastGlyph.GetKerning(ch) * scaleX;
lastGlyph = g;
AddGlyph(lastGlyph, x + g.XOffset * scaleX, y + g.YOffset * scaleY,
lastGlyph.Width * scaleX, lastGlyph.Height * scaleY);
x += g.XAdvance * scaleX;
}
}
}
return(x - startX);
}
public void ComputeGlyphAdvancesAndPositions(CharSequence str, IList <float> glyphAdvances, IList <float> glyphPositions)
{
glyphAdvances.Clear();
glyphPositions.Clear();
int index = 0;
int end = str.Length;
float width = 0;
Glyph lastGlyph = null;
BitmapFontData data = Data;
if (data.ScaleX == 1)
{
for (; index < end; index++)
{
char ch = str[index];
Glyph g = data[ch];
if (g != null)
{
if (lastGlyph != null)
{
width += lastGlyph.GetKerning(ch);
}
lastGlyph = g;
glyphAdvances.Add(g.XAdvance);
glyphPositions.Add(width);
width += g.XAdvance;
}
}
glyphAdvances.Add(0);
glyphPositions.Add(width);
}
else
{
float scaleX = data.ScaleX;
for (; index < end; index++)
{
char ch = str[index];
Glyph g = data[ch];
if (g != null)
{
if (lastGlyph != null)
{
width += lastGlyph.GetKerning(ch) * scaleX;
}
lastGlyph = g;
float xAdvance = g.XAdvance * scaleX;
glyphAdvances.Add(xAdvance);
glyphPositions.Add(width);
width += xAdvance;
}
}
glyphAdvances.Add(0);
glyphPositions.Add(width);
}
}
