public int GetLine(Point point, IntPtr hdc)
{
if (point.Y < 0)
{
return(-1);
}
int y = 0;
for (int i = 0; i < myLines.Count; i++)
{
RichText line = (RichText)myLines[i];
y += (int)line.GetSize(hdc).Height;
if (y > point.Y)
{
return(i);
}
}
return(-1);
}
public static RichTextBlock Format(RichText text, int width, IntPtr hdc)
{
RichTextBlock block = new RichTextBlock(new RichTextBlockParameters(1));
while (text.GetSize(hdc).Width >= width)
{
int[] positions = GetPossibleDivisionOffsets(text.Text);
RichText[] parts, oldParts;
oldParts = new RichText[] { text, new RichText("", text.Parameters) };
foreach (int position in positions)
{
parts = text.Split(position);
if (parts[0].GetSize(hdc).Width > width)
{
break;
}
oldParts = parts;
}
block.AddLine(oldParts[0]);
if (oldParts[0].Length == 0) // prevent endless loop
{
break;
}
text = oldParts[1];
}
block.AddLine(text);
return(block);
}