private void DrawDragDockingArrow(RenderContext context,
Color active,
Rectangle rect,
VisualOrientation orientation)
{
using (GraphicsPath innerPath = new GraphicsPath())
{
float angle = 0f;
switch (orientation)
{
case VisualOrientation.Left:
rect = new Rectangle(rect.Right - _dragArrowHeight - _dragArrowGap,
rect.Y + (rect.Height - _dragArrowWidth) / 2,
_dragArrowHeight, _dragArrowWidth);
innerPath.AddLines(new Point[] { new Point(rect.X + 1, rect.Top + 6),
new Point(rect.Right - 1, rect.Top + 1),
new Point(rect.Right - 1, rect.Bottom - 2)});
break;
case VisualOrientation.Right:
rect = new Rectangle(rect.Left + _dragArrowGap,
rect.Y + (rect.Height - _dragArrowWidth) / 2,
_dragArrowHeight, _dragArrowWidth);
innerPath.AddLines(new Point[] { new Point(rect.X + 1, rect.Top + 1),
new Point(rect.X + 1, rect.Bottom - 2),
new Point(rect.Right - 1, rect.Top + 6) });
angle = 180f;
break;
case VisualOrientation.Top:
rect = new Rectangle(rect.X + (rect.Width - _dragArrowWidth) / 2,
rect.Bottom - _dragArrowHeight - _dragArrowGap - 1,
_dragArrowWidth, _dragArrowHeight);
innerPath.AddLines(new Point[] { new Point(rect.X + 1, rect.Bottom),
new Point(rect.Right - 1, rect.Bottom),
new Point(rect.X + 6, rect.Top + 1) });
angle = 90f;
break;
case VisualOrientation.Bottom:
rect = new Rectangle(rect.X + (rect.Width - _dragArrowWidth) / 2,
rect.Top + _dragArrowGap,
_dragArrowWidth, _dragArrowHeight);
innerPath.AddLines(new Point[] { new Point(rect.X + 2, rect.Top + 1),
new Point(rect.Right - 2, rect.Top + 1),
new Point(rect.X + 6, rect.Bottom - 1) });
angle = 270f;
break;
}
// Draw background in white top highlight the arrow
using(AntiAlias aa = new AntiAlias(context.Graphics))
context.Graphics.FillPath(Brushes.White, innerPath);
// Draw the actual arrow itself
using(LinearGradientBrush innerBrush = new LinearGradientBrush(rect, ControlPaint.Dark(active), ControlPaint.Light(active), angle))
context.Graphics.FillPath(innerBrush, innerPath);
}
}
