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/* GraphComponent.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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
* General Public License for more details.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.gui.components;
import java.awt.Dimension;
import javax.swing.JLabel;
import org.grinvin.gui.components.render.GraphListElementCellRenderer;
import org.grinvin.invariants.Invariant;
import org.grinvin.list.graphs.GraphListElement;
import org.grinvin.list.graphs.GraphListElementListener;
/**
* Component that combines the graph icon with its name.
*/
public class GraphComponent extends JLabel implements GraphListElementListener {
//
private GraphListElement element;
//
public GraphComponent() {
this(null);
}
public GraphComponent(GraphListElement element) {
this.element = element;
setMinimumSize(new Dimension(100, 100));
setPreferredSize(new Dimension(165, 165));
setHorizontalAlignment(JLabel.CENTER);
setHorizontalTextPosition(JLabel.CENTER);
setVerticalTextPosition(JLabel.TOP);
setElement(element);
}
@Override public void doLayout() {
if (element != null)
setIcon();
super.doLayout();
}
/**
* Display information for the given element.
*/
public void setElement(GraphListElement newElement) {
if (element != null)
element.removeGraphListElementListener(this);
element = newElement;
if (newElement == null) {
setIcon(null);
} else {
newElement.addGraphListElementListener(this);
setVisible(true);
setIcon();
}
revalidate();
}
//
public GraphListElement getElement() {
return element;
}
//
private void setIcon() {
//TODO: check why height becomes 0
int height = getHeight() - 30;
int width = getWidth() - 30;
if (height < 1)
height = 1;
if (width < 1)
width = 1;
setIcon(GraphListElementCellRenderer.getInstance().createIcon(element, Math.min(height, width)));
}
public void graphListElementURIChanged(GraphListElement element) {
//ignore, this component does not paint the background
}
public void graphListElementNameChanged(GraphListElement element) {
//ignore, this component does not paint the title
}
public void graphListElementInvariantComputed(GraphListElement element, Invariant invariant) {
//ignore
}
public void graphListElementGraphChanged(GraphListElement element) {
setIcon();
}
}
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