/// <summary>
/// Perform the actual rendering for this Window.
/// </summary>
/// <param name="z">float value specifying the base Z co-ordinate that should be used when rendering.</param>
protected override void DrawSelf(float z)
{
// Don't do anything if we don't have any text
if (this.Text == string.Empty)
{
return;
}
// render what base class needs to render first
base.DrawSelf(z);
// render text
Font textFont = this.Font;
Size max = this.MaximumSize;
Rect maxRect = new Rect(0, max.width, 0, max.height);
string message = this.Text;
// get total pixel height of the text based on its format
float textHeight =
textFont.GetFormattedLineCount(message, maxRect, horzFormatting) * textFont.LineSpacing;
float textWidth =
textFont.GetFormattedTextExtent(message, maxRect, horzFormatting);
float height = Math.Min(textHeight, max.height);
float width = textWidth;
Rect absRect = this.UnclippedPixelRect;
int newTop = (int)(absRect.Bottom - height);
int newLeft = (int)(absRect.Left + (absRect.Width - width) / 2);
int newBottom = newTop + (int)height;
int newRight = newLeft + (int)width;
Rect newAbsRect = new Rect(newLeft, newRight, newTop, newBottom);
SetAreaRect(newAbsRect);
Rect clipper = newAbsRect.GetIntersection(this.PixelRect);
textColors.SetAlpha(EffectiveAlpha);
// The z value for this will be slightly less, so that the text
// is in front of the background
textFont.DrawText(
message,
this.UnclippedInnerRect,
this.ZValue - Renderer.GuiZLayerStep,
clipper,
horzFormatting,
textColors);
}