public override int GetHeight(DirectText directText, Font defaultFont, int width)
{
if (_layoutForWidth != width)
{
_layoutForWidth = width;
List<string> lines = new List<string>();
List<int> lineHeights = new List<int>();
_layoutHeight = 0;
string remaining = _text;
int availableWidth = width - _leftPadding - _rightPadding;
while (remaining.Length > 0)
{
// Break the remaining text into a line:
int fittingCharacterCount = directText.MeasureFittingCharacterCount(remaining, availableWidth, defaultFont);
fittingCharacterCount = Math.Max(1, fittingCharacterCount);
string line = remaining.Substring(0, fittingCharacterCount);
remaining = remaining.Substring(fittingCharacterCount);
lines.Add(line);
// Add the line height:
Size size = directText.MeasureString(line, defaultFont);
lineHeights.Add(size.Height);
_layoutHeight += size.Height;
}
_lines = lines.ToArray();
_lineHeights = lineHeights.ToArray();
}
return _layoutHeight;
}
public override void Initialize(DirectText directText, Font defaultFont)
{
Size size = directText.MeasureString(_text, defaultFont);
_fullWidthForEstimation = size.Width;
_heightForEstimation = size.Height;
}