/// <summary>
/// Compares two CharacterMetrics for equality.
/// </summary>
public override bool Equals(object obj)
{
CharacterMetrics other = obj as CharacterMetrics;
// Suppress PRESharp warning that other can be null; apparently PRESharp
// doesn't understand short circuit evaluation of operator &&.
#pragma warning disable 6506
return(other != null &&
other._blackBoxWidth == _blackBoxWidth &&
other._blackBoxHeight == _blackBoxHeight &&
other._leftSideBearing == _leftSideBearing &&
other._rightSideBearing == _rightSideBearing &&
other._topSideBearing == _topSideBearing &&
other._bottomSideBearing == _bottomSideBearing);
#pragma warning restore 6506
}
unsafe void IDeviceFont.GetAdvanceWidths(
char *characterString,
int characterLength,
double emSize,
int *pAdvances
)
{
unsafe
{
for (int i = 0; i < characterLength; ++i)
{
CharacterMetrics metrics = _characterMetrics.GetValue(characterString[i]);
if (metrics != null)
{
// Side bearings are included in the advance width but are not used as offsets for glyph positioning.
pAdvances[i] = Math.Max(0, (int)((metrics.BlackBoxWidth + metrics.LeftSideBearing + metrics.RightSideBearing) * emSize));
}
else
{
pAdvances[i] = 0;
}
}
}
}