/*
* Copyright 2006 - 2013
* Stefan Balev <stefan.balev@graphstream-project.org>
* Julien Baudry <julien.baudry@graphstream-project.org>
* Antoine Dutot <antoine.dutot@graphstream-project.org>
* Yoann Pigné <yoann.pigne@graphstream-project.org>
* Guilhelm Savin <guilhelm.savin@graphstream-project.org>
*
* This file is part of GraphStream <http://graphstream-project.org>.
*
* GraphStream is a library whose purpose is to handle static or dynamic
* graph, create them from scratch, file or any source and display them.
*
* This program is free software distributed under the terms of two licenses, the
* CeCILL-C license that fits European law, and the GNU Lesser General Public
* License. You can use, modify and/ or redistribute the software under the terms
* of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
* URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by
* the Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C and LGPL licenses and that you accept their terms.
*/
package org.graphstream.ui.view.util;
import org.graphstream.ui.geom.Point3;
import org.graphstream.ui.graphicGraph.GraphicGraph;
import org.graphstream.ui.view.Camera;
import org.graphstream.ui.view.View;
import java.awt.event.KeyEvent;
public class DefaultShortcutManager implements ShortcutManager
{
// Attributes
/**
* The viewer to control.
*/
protected View view;
protected double viewPercent = 1;
protected Point3 viewPos = new Point3();
protected double rotation = 0;
// Construction
public void init(GraphicGraph graph, View view) {
this.view = view;
view.addKeyListener(this);
}
public void release() {
view.removeKeyListener(this);
}
// Events
/**
* A key has been pressed.
*
* @param event The event that generated the key.
*/
public void keyPressed(KeyEvent event) {
Camera camera = view.getCamera();
if (event.getKeyCode() == KeyEvent.VK_PAGE_UP) {
camera.setViewPercent(Math.max(0.0001f,
camera.getViewPercent() * 0.9f));
} else if (event.getKeyCode() == KeyEvent.VK_PAGE_DOWN) {
camera.setViewPercent(camera.getViewPercent() * 1.1f);
} else if (event.getKeyCode() == KeyEvent.VK_LEFT) {
if ((event.getModifiers() & KeyEvent.ALT_MASK) != 0) {
double r = camera.getViewRotation();
camera.setViewRotation(r - 5);
} else {
double delta = 0;
if ((event.getModifiers() & KeyEvent.SHIFT_MASK) != 0)
delta = camera.getGraphDimension() * 0.1f;
else
delta = camera.getGraphDimension() * 0.01f;
delta *= camera.getViewPercent();
Point3 p = camera.getViewCenter();
camera.setViewCenter(p.x - delta, p.y, 0);
}
} else if (event.getKeyCode() == KeyEvent.VK_RIGHT) {
if ((event.getModifiers() & KeyEvent.ALT_MASK) != 0) {
double r = camera.getViewRotation();
camera.setViewRotation(r + 5);
} else {
double delta = 0;
if ((event.getModifiers() & KeyEvent.SHIFT_MASK) != 0)
delta = camera.getGraphDimension() * 0.1f;
else
delta = camera.getGraphDimension() * 0.01f;
delta *= camera.getViewPercent();
Point3 p = camera.getViewCenter();
camera.setViewCenter(p.x + delta, p.y, 0);
}
} else if (event.getKeyCode() == KeyEvent.VK_UP) {
double delta = 0;
if ((event.getModifiers() & KeyEvent.SHIFT_MASK) != 0)
delta = camera.getGraphDimension() * 0.1f;
else
delta = camera.getGraphDimension() * 0.01f;
delta *= camera.getViewPercent();
Point3 p = camera.getViewCenter();
camera.setViewCenter(p.x, p.y + delta, 0);
} else if (event.getKeyCode() == KeyEvent.VK_DOWN) {
double delta = 0;
if ((event.getModifiers() & KeyEvent.SHIFT_MASK) != 0)
delta = camera.getGraphDimension() * 0.1f;
else
delta = camera.getGraphDimension() * 0.01f;
delta *= camera.getViewPercent();
Point3 p = camera.getViewCenter();
camera.setViewCenter(p.x, p.y - delta, 0);
}
}
/**
* A key has been pressed.
*
* @param event
* The event that generated the key.
*/
public void keyReleased(KeyEvent event) {
}
/**
* A key has been typed.
*
* @param event
* The event that generated the key.
*/
public void keyTyped(KeyEvent event) {
if (event.getKeyChar() == 'R') {
view.getCamera().resetView();
}
// else if( event.getKeyChar() == 'B' )
// {
// view.setModeFPS( ! view.getModeFPS() );
// }
}
}