/// <summary>
/// Composes the element content.
/// </summary>
/// <param name="surface">The composition surface.</param>
protected override void ComposeContent(Surface surface)
{
var color = this.BorderColor;
var border = this.BorderThickness;
var outer = this.Bounds;
var inner = outer - border;
surface.DrawRectangle(this.Background, null, inner);
surface.DrawRectangle(color, null, new RectangleF(outer.Left, outer.Top, outer.Width, border.Top));
surface.DrawRectangle(color, null, new RectangleF(outer.Left, outer.Bottom - border.Bottom, outer.Width, border.Bottom));
surface.DrawRectangle(color, null, new RectangleF(outer.Left, outer.Top + border.Top, border.Left, outer.Height - border.Top - border.Bottom));
surface.DrawRectangle(color, null, new RectangleF(outer.Right - border.Right, outer.Top + border.Top, border.Right, outer.Height - border.Top - border.Bottom));
if (this.ClipToBounds)
{
surface.PushClip(inner);
try
{
base.ComposeContent(surface);
}
finally
{
surface.PopClip();
}
}
else
{
base.ComposeContent(surface);
}
}
