EdgeWidget.java

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 * Copyright 2016 Neil C Smith.
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 * This class is derived from code in NetBeans Visual Library.
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package net.neilcsmith.praxis.live.graph;

import java.awt.Point;
import java.awt.Rectangle;
import org.netbeans.api.visual.model.ObjectState;
import org.netbeans.api.visual.router.Router;
import org.netbeans.api.visual.widget.ConnectionWidget;

/**
 * This class represents a connection widget in the VMD visualization style. Can be combined with any other widget.
 *
 * @author David Kaspar
 */
public class EdgeWidget extends ConnectionWidget {

    private LAFScheme scheme;

    /**
     * Creates a connection widget with a specific color scheme.
     * @param scene the scene
     */
    public EdgeWidget (PraxisGraphScene scene) {
        super (scene);
        this.scheme = scene.getLookAndFeel();
        scheme.installUI (this);
    }



    /**
     * Implements the widget-state specific look of the widget.
     * @param previousState the previous state
     * @param state the new state
     */
    @Override
    public void notifyStateChanged (ObjectState previousState, ObjectState state) {
        if (!previousState.isSelected() && state.isSelected()) {
            bringToFront();
        } else if (!previousState.isHovered() && state.isHovered()) {
            bringToFront();
        }
        scheme.updateUI(this);
    }

}