public override void DrawArrow(Context cr, Gdk.Rectangle alloc, Hyena.Data.SortType type)
{
cr.LineWidth = 1;
cr.Translate(0.5, 0.5);
double x1 = alloc.X;
double x3 = alloc.X + alloc.Width / 2.0;
double x2 = x3 + (x3 - x1);
double y1 = alloc.Y;
double y2 = alloc.Bottom;
if (type == Hyena.Data.SortType.Ascending)
{
cr.MoveTo(x1, y1);
cr.LineTo(x2, y1);
cr.LineTo(x3, y2);
cr.LineTo(x1, y1);
}
else
{
cr.MoveTo(x3, y1);
cr.LineTo(x2, y2);
cr.LineTo(x1, y2);
cr.LineTo(x3, y1);
}
cr.Color = Colors.GetWidgetColor(GtkColorClass.Base, StateType.Normal);
cr.FillPreserve();
cr.Color = Colors.GetWidgetColor(GtkColorClass.Text, StateType.Normal);
cr.Stroke();
cr.Translate(-0.5, -0.5);
}
public void DrawArrow(Cairo.Context cr, Gdk.Rectangle alloc, Hyena.Data.SortType type)
{
DrawArrow(cr, alloc, Math.PI / 2.0 * (type == Hyena.Data.SortType.Ascending ? 1 : -1));
}
public abstract void DrawArrow(Cairo.Context cr, Gdk.Rectangle alloc, Hyena.Data.SortType type);
