public void Dispose()
{
FontServices.DeleteObject(_hFont);
_graphics.ReleaseHdc(_hDC);
_hFont = _hDC = IntPtr.Zero;
}
public FontToHDCBinder(Graphics g, Font font)
{
_graphics = g;
_hDC = g.GetHdc();
_hFont = font.ToHfont();
_hPrevFont = FontServices.SelectObject(_hDC, _hFont);
}
public static void TextOut(Graphics graphics, Font font, Color color, int x, int y, string str)
{
using (FontToHDCBinder binder = FontServices.BindFontToHDC(graphics, font))
{
UInt32 prevColor = GetTextColor(binder.HDC);
SetTextColor(binder.HDC, ToColorRef(color));
int prevBkMode = SetBkMode(binder.HDC, TRANSPARENT);
TextOut(binder.HDC, x, y, str, str.Length);
SetBkMode(binder.HDC, prevBkMode);
SetTextColor(binder.HDC, prevColor);
}
}
int CountKerningsWithFirstChar( FontServices.KerningPair[] kerningPairs, Char ch )
{
int total = 0;
for ( int i=0; i < kerningPairs.Length; i++ )
{
if ( kerningPairs[i].wFirst == (Int16)ch )
++total;
}
return total;
}
//
// NOTE: This is currently unused. This would seem to be the right way to do it,
// but the results that we get back don't match what you get if you call Graphics.DrawString.
// Instead, see CalculateSpacingInfo.
//
public CharacterKerningInfo( CharacterInfo character, FontServices.KerningPair[] kerningPairs, CharacterInfo[] validCharacters )
{
this.Character = character;
// Add a kerning pair for anything that we're the first character in (and has a valid second character).
for ( int i=0; i < kerningPairs.Length; i++ )
{
if ( kerningPairs[i].wFirst == (short)this.Character.Character )
{
CharacterInfo second = FindCharacter( (Char)kerningPairs[i].wSecond, validCharacters ); // Find the second kerning character in validCharacters.
if ( second != null )
{
KerningPair pair = new KerningPair()
{
SecondCharacter = second,
KernAmount = kerningPairs[i].iKernAmount
};
this.Kernings.Add( pair );
}
}
}
}
