org.piccolo2d.examples.SelectionExample Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2011, Piccolo2D project, http://piccolo2d.org
* Copyright (c) 1998-2008, University of Maryland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions
* and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions
* and the following disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* None of the name of the University of Maryland, the name of the Piccolo2D project, or the names of its
* contributors may be used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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package org.piccolo2d.examples;
import java.awt.Color;
import org.piccolo2d.PCanvas;
import org.piccolo2d.PNode;
import org.piccolo2d.extras.PFrame;
import org.piccolo2d.extras.event.PNotification;
import org.piccolo2d.extras.event.PNotificationCenter;
import org.piccolo2d.extras.event.PSelectionEventHandler;
import org.piccolo2d.nodes.PPath;
/**
* This example shows how the selection event handler works. It creates a bunch
* of objects that can be selected.
*/
public class SelectionExample extends PFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
public SelectionExample() {
this(null);
}
public SelectionExample(final PCanvas aCanvas) {
super("SelectionExample", false, aCanvas);
}
public void initialize() {
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 5; j++) {
final PNode rect = PPath.createRectangle(i * 60, j * 60, 50, 50);
rect.setPaint(Color.blue);
getCanvas().getLayer().addChild(rect);
}
}
// Turn off default navigation event handlers
getCanvas().removeInputEventListener(getCanvas().getPanEventHandler());
getCanvas().removeInputEventListener(getCanvas().getZoomEventHandler());
// Create a selection event handler
final PSelectionEventHandler selectionEventHandler = new PSelectionEventHandler(getCanvas().getLayer(),
getCanvas().getLayer());
getCanvas().addInputEventListener(selectionEventHandler);
getCanvas().getRoot().getDefaultInputManager().setKeyboardFocus(selectionEventHandler);
PNotificationCenter.defaultCenter().addListener(this, "selectionChanged",
PSelectionEventHandler.SELECTION_CHANGED_NOTIFICATION, selectionEventHandler);
}
public void selectionChanged(final PNotification notfication) {
System.out.println("selection changed");
}
public static void main(final String[] args) {
new SelectionExample();
}
}
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