public override void DrawItemOn(Gdi g, Rectangle rItem)
{
int y = (rItem.Height - _imageSize.Height) / 2;
g.Font = Font;
if (_selectButton != null)
{
g.DrawImageAlphaChannel(_selectButton, rItem.Right - _imageSize.Width - UISettings.CalcPix(15), rItem.Top + y);
}
g.TextColor = Color.FromArgb(51, 153, 255);
var textSize = g.GetTextExtent((string)DataSource.OptionValue);
y = (rItem.Height - textSize.Height) / 2;
int x = rItem.Width - UISettings.CalcPix(20) - _imageSize.Width;
if (textSize.Width < x)
{
x = textSize.Width;
}
g.DrawText((string)DataSource.OptionValue,
new Win32.RECT(rItem.Right - UISettings.CalcPix(20) - _imageSize.Width - x,
rItem.Top + y,
x,
textSize.Height),
Win32.DT.LEFT | Win32.DT.TOP | Win32.DT.WORDBREAK | Win32.DT.SINGLELINE);
}
protected override void OnRender(Gdi graphics, Rectangle clipRect)
{
IntPtr ptrSrc = OffscreenBuffer.OffScreenGraphics.GetHdc();
using (Gdi gr = Gdi.FromHdc(ptrSrc, Rectangle.Empty))
{
DrawBackground(gr, clipRect);
// fill background with double gradient
var y = (int)(_backgroundRectangle.Height * _gradientCenter);
gr.GradientFill(new Rectangle(_backgroundRectangle.Left, _backgroundRectangle.Top,
_backgroundRectangle.Width, y),
_gradientColor1, _gradientColor2, FillDirection.TopToBottom);
gr.GradientFill(new Rectangle(_backgroundRectangle.Left, _backgroundRectangle.Top + y,
_backgroundRectangle.Width, _backgroundRectangle.Height - y),
_gradientColor2, _gradientColor3, FillDirection.TopToBottom);
// Pass the graphics to the canvas to render
if (Canvas != null)
{
Canvas.Render(gr, clipRect);
}
//Draw Text
SetFont(gr);
gr.DrawText(_message,
new Win32.RECT(_textRectangle.X,
_textRectangle.Y,
_textRectangle.Width,
_textRectangle.Height),
Win32.DT.LEFT | Win32.DT.TOP | Win32.DT.WORDBREAK | Win32.DT.NOCLIP);
}
graphics.BitBlt(clipRect.Left, clipRect.Top, Width, Height, ptrSrc, clipRect.Left, clipRect.Top, TernaryRasterOperations.SRCCOPY);
OffscreenBuffer.OffScreenGraphics.ReleaseHdc(ptrSrc);
}
