/*Created on 21 nov. 2003 */
package org.cristalise.gui.lifecycle.desc;

import java.awt.Graphics2D;

import org.cristalise.gui.graph.view.DirectedEdgeRenderer;
import org.cristalise.gui.graph.view.GraphPanel;
import org.cristalise.gui.graph.view.VertexRenderer;
import org.cristalise.kernel.graph.model.DirectedEdge;
import org.cristalise.kernel.graph.model.GraphPoint;
import org.cristalise.kernel.lifecycle.NextDef;


/** @author XSeb74*/
public class WfDefGraphPanel extends GraphPanel
{
	public WfDefGraphPanel(DirectedEdgeRenderer d,VertexRenderer v)
	{
		super(d,v);
	}
	// Draws the highlight of the specified edge
	@Override
	protected void drawEdgeHighlight(Graphics2D g2d, DirectedEdge edge)
	{
		GraphPoint originPoint   = edge.getOriginPoint();
		GraphPoint terminusPoint = edge.getTerminusPoint();
		GraphPoint midPoint = new GraphPoint();

		if ("Straight".equals(((NextDef)edge).getProperties().get("Type")) || ((NextDef)edge).getProperties().get("Type") == null)
		{
			midPoint.x = originPoint.x + (terminusPoint.x - originPoint.x) / 2;
			midPoint.y = originPoint.y + (terminusPoint.y - originPoint.y) / 2;
		}
		else if (("Broken +".equals(((NextDef)edge).getProperties().get("Type"))))
		{
			midPoint.x = (originPoint.x + terminusPoint.x) / 2;
			midPoint.y = (originPoint.y + terminusPoint.y) / 2;
		}
		else if (("Broken -".equals(((NextDef)edge).getProperties().get("Type"))))
		{
			boolean arrowOnY = !(originPoint.y - terminusPoint.y < 60 && originPoint.y - terminusPoint.y > -60);
			midPoint.x = arrowOnY ? terminusPoint.x : (originPoint.x + terminusPoint.x) / 2;
			midPoint.y = arrowOnY ? (originPoint.y + terminusPoint.y) / 2 : originPoint.y;
		}
		else if (("Broken |".equals(((NextDef)edge).getProperties().get("Type"))))
		{
			boolean arrowOnY = !(originPoint.y - terminusPoint.y < 60 && originPoint.y - terminusPoint.y > -60);
			midPoint.x = arrowOnY ? originPoint.x : (originPoint.x + terminusPoint.x) / 2;
			midPoint.y = arrowOnY ? (originPoint.y + terminusPoint.y) / 2 : terminusPoint.y;
		}
		int minX = midPoint.x - 10;
		int minY = midPoint.y - 10;
		int maxX = midPoint.x + 10;
		int maxY = midPoint.y + 10;
		g2d.drawLine(minX, minY, maxX, minY);
		g2d.drawLine(maxX, minY, maxX, maxY);
		g2d.drawLine(maxX, maxY, minX, maxY);
		g2d.drawLine(minX, maxY, minX, minY);
	}
}