public override Size CalculateButtonAutoSize (Button button)
{
Size ret_size = Size.Empty;
Size text_size = TextRenderer.MeasureTextInternal (button.Text, button.Font, button.UseCompatibleTextRendering);
Size image_size = button.Image == null ? Size.Empty : button.Image.Size;
// Pad the text size
if (button.Text.Length != 0) {
text_size.Height += 4;
text_size.Width += 4;
}
switch (button.TextImageRelation) {
case TextImageRelation.Overlay:
ret_size.Height = Math.Max (button.Text.Length == 0 ? 0 : text_size.Height, image_size.Height);
ret_size.Width = Math.Max (text_size.Width, image_size.Width);
break;
case TextImageRelation.ImageAboveText:
case TextImageRelation.TextAboveImage:
ret_size.Height = text_size.Height + image_size.Height;
ret_size.Width = Math.Max (text_size.Width, image_size.Width);
break;
case TextImageRelation.ImageBeforeText:
case TextImageRelation.TextBeforeImage:
ret_size.Height = Math.Max (text_size.Height, image_size.Height);
ret_size.Width = text_size.Width + image_size.Width;
break;
}
// Pad the result
ret_size.Height += (button.Padding.Vertical + 6);
ret_size.Width += (button.Padding.Horizontal + 6);
return ret_size;
}