public override void Draw(Graphics gr, Point position, Range range)
{
//draw background
if (BackgroundBrush != null)
{
gr.FillRectangle(BackgroundBrush, position.X, position.Y, (range.End.iChar - range.Start.iChar) * range.tb.CharWidth, range.tb.CharHeight);
}
//draw chars
using (var f = new Font(range.tb.Font, FontStyle))
{
Line line = range.tb[range.Start.iLine];
float dx = range.tb.CharWidth;
float y = position.Y + range.tb.LineInterval / 2;
float x = position.X - range.tb.CharWidth / 3;
if (ForeBrush == null)
{
ForeBrush = new SolidBrush(range.tb.ForeColor);
}
if (range.tb.ImeAllowed)
{
//IME mode
for (int i = range.Start.iChar; i < range.End.iChar; i++)
{
//SizeF size = FastColoredTextBox.GetCharSize(f, line[i].c); //Modified for Chinese
var gs = gr.Save();
//float k = size.Width > range.tb.CharWidth + 1 ? range.tb.CharWidth/size.Width : 1;
float k = 1; //Modified for Chinese
gr.TranslateTransform(x, y + (1 - k) * range.tb.CharHeight / 2);
gr.ScaleTransform(k, (float)Math.Sqrt(k));
gr.DrawString(line[i].c.ToString(), f, ForeBrush, 0, 0, stringFormat);
gr.Restore(gs);
//x += dx; //Modified for Chinese
if (FastColoredTextBox.IsChinese(line[i].c))
{
x += range.tb.CharCnWidth;
}
else
{
x += dx;
}
}
}
else
{
//classic mode
for (int i = range.Start.iChar; i < range.End.iChar; i++)
{
//draw char
gr.DrawString(line[i].c.ToString(), f, ForeBrush, x, y, stringFormat);
//x += dx; //Modified for Chinese
if (line[i].c > 0xff)
{
var size = FastColoredTextBox.GetCharSize(f, line[i].c);
x += size.Width;
}
else
{
x += dx;
}
}
}
}
}
