/// <summary>
/// Draw the border of the node.
/// </summary>
/// <param name="graphics">The grpahics object we render to.</param>
/// <param name="boundingBox">The untransformed bounding box of the node.</param>
/// <param name="pen">The pen we use.</param>
protected virtual void DrawShapeBorder(Graphics graphics, RectangleF boundingBox, Pen pen)
{
switch(_shape)
{
case(NodeShape.Rectangle):
graphics.DrawRectangle(pen, boundingBox.X, boundingBox.Y, boundingBox.Width, boundingBox.Height);
break;
case(NodeShape.Ellipse):
graphics.DrawEllipse(pen, boundingBox);
break;
case(NodeShape.Capsule):
case(NodeShape.RoundedRectangle):
float radius= _shape ==NodeShape.RoundedRectangle ? 10.0f: boundingBox.Height;
System.Drawing.Extended.ExtendedGraphics extended= new System.Drawing.Extended.ExtendedGraphics(graphics);
extended.DrawRoundRectangle(pen, boundingBox.X, boundingBox.Y, boundingBox.Width, boundingBox.Height, radius);
break;
default: throw new Exception(Resources.ExceptionUnhandledNodeShape);
}
}
/// <summary>
/// Draws the background and shape of the node
/// </summary>
/// <param name="graphics">The grpahics object we render to.</param>
/// <param name="boundingBox">The untransformed bounding box of the node.</param>
/// <param name="brush">The brush used for the background.</param>
public virtual void DrawShapeBackground(Graphics graphics, RectangleF boundingBox, Brush brush)
{
switch(_shape)
{
case(NodeShape.Rectangle):
graphics.FillRectangle(brush, boundingBox);
break;
case(NodeShape.Ellipse):
graphics.FillEllipse(brush, boundingBox);
break;
case(NodeShape.Capsule):
case(NodeShape.RoundedRectangle):
float radius= _shape ==NodeShape.RoundedRectangle ? 10.0f: boundingBox.Height;
System.Drawing.Extended.ExtendedGraphics extended= new System.Drawing.Extended.ExtendedGraphics(graphics);
extended.FillRoundRectangle(brush, boundingBox.X, boundingBox.Y, boundingBox.Width, boundingBox.Height, radius);
break;
default: throw new Exception(Resources.ExceptionUnhandledNodeShape);
}
}
