/// <summary>
/// Measure the whitespace of glyphs.
/// </summary>
/// <param name="glyphs">The glyphs to measure.</param>
/// <returns>The measured glyphs.</returns>
public static IEnumerable <AdjustedGlyph> MeasureWhiteSpace(IEnumerable <Bitmap> glyphs)
{
foreach (var glyph in glyphs)
{
var bitmapData = glyph.LockBits(new Rectangle(0, 0, glyph.Width, glyph.Height), ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
var top = MeasureWhiteSpaceSide(0, bitmapData, glyph.Width, glyph.Height);
var left = MeasureWhiteSpaceSide(1, bitmapData, glyph.Width, glyph.Height);
var bottom = MeasureWhiteSpaceSide(2, bitmapData, glyph.Width, glyph.Height);
var right = MeasureWhiteSpaceSide(3, bitmapData, glyph.Width, glyph.Height);
glyph.UnlockBits(bitmapData);
var adjustment = new WhiteSpaceAdjustment(
new Point(left, top),
new Size(glyph.Width - left - right, glyph.Height - top - bottom));
yield return(new AdjustedGlyph(glyph, adjustment));
}
}
/// <summary>
/// Creates a new instance of <see cref="AdjustedGlyph"/> with no adjustements to it.
/// </summary>
/// <param name="glyph">The glyph.</param>
/// <param name="adjustment">The adjustments made to reduce white space in a glyph.</param>
public AdjustedGlyph(Bitmap glyph, WhiteSpaceAdjustment adjustment)
{
WhiteSpaceAdjustment = adjustment;
Glyph = glyph;
}