public void DrawString(SpriteBatch spriteBatch, string text, int x, int y, Color4 color)
{
if (text == "") //Skip empty strings
{
return;
}
var iter = new CodepointIterator(text);
float penX = x, penY = y;
while (iter.Iterate())
{
uint c = iter.Codepoint;
if (c == (uint)'\n')
{
penY += lineHeight;
penX = x;
continue;
}
var glyph = GetGlyph(c);
if (glyph.Render)
{
spriteBatch.Draw(
glyph.Texture,
glyph.Rectangle,
new Rectangle(
(int)penX + glyph.XOffset,
(int)penY + (LineHeight - glyph.YOffset),
glyph.Rectangle.Width,
glyph.Rectangle.Height
),
color
);
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
}
else
{
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (glyph.Kerning && iter.Index < iter.Count - 1)
{
var g2 = GetGlyph(iter.PeekNext());
if (g2.Face == glyph.Face)
{
FT.FT_Vector vec;
FT.FT_Get_Kerning(glyph.Face, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6(vec.x);
penX += krn;
}
}
}
}
public Point MeasureString(string text)
{
if (text == "") //Skip empty strings
{
return(new Point(0, 0));
}
var iter = new CodepointIterator(text);
float penX = 0, penY = 0;
while (iter.Iterate())
{
uint c = iter.Codepoint;
if (c == (uint)'\n')
{
penY += lineHeight;
penX = 0;
continue;
}
var glyph = GetGlyph(c);
if (glyph.Render)
{
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
}
else
{
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (glyph.Kerning && iter.Index < iter.Count - 1)
{
var g2 = GetGlyph(iter.PeekNext());
if (g2.Face == glyph.Face)
{
FT.FT_Vector vec;
FT.FT_Get_Kerning(glyph.Face, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6(vec.x);
penX += krn;
}
}
}
return(new Point((int)penX, (int)penY));
}
