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Visualization library used by the OntoGraf plug-in for the Protege ontology editing environment.

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package ca.uvic.cs.chisel.cajun.graph;

import ca.uvic.cs.chisel.cajun.filter.FilterManager;
import ca.uvic.cs.chisel.cajun.graph.handlers.CameraDragPanHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.CameraKeyPanHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.FocusOnExtentsHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.HighlightHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.NodeDragHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.SelectionHandler;
import ca.uvic.cs.chisel.cajun.graph.handlers.ZoomHandler;
import ca.uvic.cs.chisel.cajun.graph.util.AnimationHandler;
import edu.umd.cs.piccolo.PCamera;
import edu.umd.cs.piccolo.util.PPaintContext;

public class FlatGraph extends AbstractGraph {
	private static final long serialVersionUID = 2134657503991199239L;
	
	private boolean showNodeTooltips;
	
	private AnimationHandler animationHandler;
	
	public FlatGraph() {
		this(new DefaultGraphModel());
		
		this.showNodeTooltips = true;
	}
	
	public FlatGraph(GraphModel model) {
		super(model);

		setDefaultRenderQuality(PPaintContext.HIGH_QUALITY_RENDERING);
		setAnimatingRenderQuality(PPaintContext.HIGH_QUALITY_RENDERING);
		setInteractingRenderQuality(PPaintContext.HIGH_QUALITY_RENDERING);

		this.animationHandler = new AnimationHandler(this);

		PCamera camera = getCamera();

		// use our custom pan handler (when the canvas is dragged)
		setPanEventHandler(new CameraDragPanHandler());
		// this causes panning to happen when the arrow keys are pressed
		camera.addInputEventListener(new CameraKeyPanHandler(camera));
		
		// disable key zooming - we'll use our own handler
		setZoomEventHandler(null);
        // handles keyboard (+/-) and mouse wheel zoom events
        camera.addInputEventListener(new ZoomHandler(camera));

        // handles dragging of nodes
		camera.addInputEventListener(new NodeDragHandler());
		// handles node selections
        camera.addInputEventListener(new SelectionHandler(getNodeSelection()));
        //  handles highlighting nodes and arcs
        camera.addInputEventListener(new HighlightHandler());
        
        // ensures that all nodes are displayed on the canvas
        camera.addInputEventListener(new FocusOnExtentsHandler(animationHandler));
	}

	public AnimationHandler getAnimationHandler() {
		return animationHandler;
	}

	public FilterManager getFilterManager() {
		return filterManager;
	}

	public boolean isShowNodeTooltips() {
		return showNodeTooltips;
	}

	public void setShowNodeTooltips(boolean showNodeTooltips) {
		this.showNodeTooltips = showNodeTooltips;
	}
}