/// <summary>
/// Expose event handler, calls PaintBackground and then PaintCells
/// </summary>
/// <param name="evnt">
/// Arguments <see cref="Gdk.EventExpose"/>
/// </param>
/// <returns>
/// true if successful, false if not <see cref="System.Boolean"/>
/// </returns>
protected override bool OnExposeEvent(Gdk.EventExpose evnt)
{
base.OnExposeEvent(evnt);
int x, y, w, h, d = 0;
GdkWindow.GetGeometry(out x, out y, out w, out h, out d);
CellRectangle r = new CellRectangle(0, 0, w, h);
System.Console.WriteLine("Using cellrendererwindow=" + (IsCellRenderer == true));
Gdk.Window masterDrawable = (IsCellRenderer == true) ? cellRendererWindow : evnt.Window;
Gdk.Drawable buffer = null;
Cairo.Context context = null;
if (IsDoubleBuffered == true)
{
System.Console.WriteLine("DoubleBuffered");
buffer = new Gdk.Pixmap(masterDrawable, Allocation.Width, Allocation.Height, 24);
context = Gdk.CairoHelper.Create(buffer);
}
else
{
masterDrawable.BeginPaintRect(evnt.Area);
context = Gdk.CairoHelper.Create(masterDrawable);
}
Gdk.Color clr = Style.Backgrounds[(int)StateType.Normal];
// context.Color = new Cairo.Color (0, 0, 1);
context.Color = clr.GetCairoColor();
r.DrawPath(context);
context.Fill();
// if ((BackgroundPainted == true) && (Sensitive == true))
// PaintBackground (evnt, g, rect);
// Cairo.Rectangle r = rect.CopyAndShrink (Padding);
r.Shrink(Padding);
CalculateCellAreas(r);
if (IsDoubleBuffered == true)
{
PaintCells(evnt, buffer, context, r);
evnt.Window.DrawDrawable(Style.BlackGC, buffer, evnt.Area.X, evnt.Area.Y, evnt.Area.X, evnt.Area.Y, evnt.Area.Width, evnt.Area.Height);
buffer.Dispose();
}
else
{
PaintCells(evnt, masterDrawable, context, r);
masterDrawable.EndPaint();
}
((IDisposable)context.Target).Dispose();
((IDisposable)context).Dispose();
context = null;
return(true);
}
/// <summary>
/// Compares colors if they are equal
/// </summary>
/// <param name="aColor">
/// Original color <see cref="Cairo.Color"/>
/// </param>
/// <param name="aCompareTo">
/// Compared to <see cref="Gdk.Color"/>
/// </param>
/// <returns>
/// true if equal false if not <see cref="System.Boolean"/>
/// </returns>
public static bool IsEqualColor(this Cairo.Color aColor, Gdk.Color aCompareTo)
{
return(IsEqualColor(aColor, aCompareTo.GetCairoColor()));
}
