/// <summary>
/// Loads all the unicode ranges.
/// </summary>
private void LoadRanges(GdiDeviceContent dc) {
GlyphSet glyphSet = new GlyphSet();
uint size = LibWrapper.GetFontUnicodeRanges(dc.Handle, glyphSet);
if (size == 0) {
throw new Exception("Unable to retrieve unicode ranges.");
}
unicodeRanges = new UnicodeRange[glyphSet.cRanges];
for (int i = 0, offset = 0; i < glyphSet.cRanges; i++) {
ushort wcLow = (ushort) (glyphSet.ranges[offset++] + (glyphSet.ranges[offset++] << 8));
ushort cGlyphs = (ushort) (glyphSet.ranges[offset++] + (glyphSet.ranges[offset++] << 8));
unicodeRanges[i] = new UnicodeRange(dc, wcLow, (ushort) (wcLow + cGlyphs - 1));
}
}
/// <summary>
/// Loads all the unicode ranges.
/// </summary>
private void LoadRanges(GdiDeviceContent dc)
{
GlyphSet glyphSet = new GlyphSet();
uint size = LibWrapper.GetFontUnicodeRanges(dc.Handle, glyphSet);
if (size == 0)
{
throw new Exception("Unable to retrieve unicode ranges.");
}
unicodeRanges = new UnicodeRange[glyphSet.cRanges];
for (int i = 0, offset = 0; i < glyphSet.cRanges; i++)
{
ushort wcLow = (ushort)(glyphSet.ranges[offset++] + (glyphSet.ranges[offset++] << 8));
ushort cGlyphs = (ushort)(glyphSet.ranges[offset++] + (glyphSet.ranges[offset++] << 8));
unicodeRanges[i] = new UnicodeRange(dc, wcLow, (ushort)(wcLow + cGlyphs - 1));
}
}
public int Compare(object x, object y)
{
UnicodeRange left = (UnicodeRange)x;
char charToLocate = (char)y;
// Two unicode ranges will never overlap
if (left.End < charToLocate)
{
return(-1);
}
if (left.Start > charToLocate)
{
return(1);
}
return(0);
}
/// <summary>
/// Translates the supplied character to a glyph index.
/// </summary>
/// <param name="c">Any unicode character.</param>
/// <returns>
/// A glyph index for <i>c</i> or 0 the supplied character does
/// not exist in the font selected into the device context.
/// </returns>
public ushort MapCharacter(char c)
{
UnicodeRange range = GetRange(c);
return((range == null) ? (ushort)0 : range.MapCharacter(c));
}
