private void DrawTree(Graphics drawingAreaGraphics)
{
drawingAreaGraphics.Clear(Color.White);
drawingAreaGraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
// Get width / height of node surface
int nodeSurfaceWidth, nodeSurfaceHeight;
NodeSurface.GetDimensions(out nodeSurfaceWidth, out nodeSurfaceHeight);
// Draw node surfaces
for (int i = 0; i < m_nodeSurfaces.Count; i++)
{
NodeSurface currNodeSurface = m_nodeSurfaces[i];
int xPos, yPos;
currNodeSurface.GetPosition(out xPos, out yPos);
xPos -= nodeSurfaceWidth / 2;
yPos -= nodeSurfaceHeight / 2;
drawingAreaGraphics.DrawImage(currNodeSurface.GetBitmapImage(), xPos, yPos);
}
// Draw Draw Node Connector
for (int i = 0; i < m_lines.Count; i++)
{
Line line = m_lines[i];
Pen pen = new Pen(Brushes.Black, 4.0f);
int portWidth, portHeight;
NodeSurface.GetPortDimensions(out portWidth, out portHeight);
Point[] points = new Point[]
{
new Point(line.StartX, line.StartY - (portHeight / 2)),
new Point(line.StartX, line.StartY + 5),
new Point(line.EndX, line.EndY - 5),
new Point(line.EndX, line.EndY + (portHeight / 2))
};
drawingAreaGraphics.DrawLines(pen, points);
}
}
