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/* InvariantValueTableCellRenderer.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.render;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Polygon;
import java.util.ResourceBundle;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import org.grinvin.worksheet.HasRequestedCell;
import org.grinvin.invariants.InvariantValue;
import org.grinvin.invariants.InvariantValueDelegate;
/**
* Table cell renderer for objects of type {@link InvariantValue}.
*/
public class InvariantValueTableCellRenderer extends DefaultTableCellRenderer {
//
private static final TableCellRenderer RENDERER
= new InvariantValueTableCellRenderer ();
/**
* Return the shared instance of this class.
*/
public static TableCellRenderer getInstance () {
return RENDERER;
}
private InvariantValueTableCellRenderer () {
// not to be instantiated
}
//
private boolean hasDetails;
/**
* Renders an invariant value.
*/
@Override
public void setValue(Object value) {
ResourceBundle rbundle = ResourceBundle.getBundle ("org.grinvin.list.resources");
if (value instanceof InvariantValue) {
InvariantValue invariantValue = (InvariantValue)value;
InvariantValueDelegate delegate = invariantValue.getType().getDelegate();
delegate.initLabel(this, invariantValue);
this.hasDetails = delegate.hasDetails(invariantValue);
} else if (value == null) {
setIcon(null);
setText(rbundle.getString("InvariantValue.notYetCalculated"));
this.hasDetails = false;
} else
throw new IllegalArgumentException
("InvariantValueTableCellRenderer can only be used with columns of type InvariantValue");
}
private static final int SIDE = 10;
private static final Polygon polygon = new Polygon (
new int[] { 0, SIDE, SIDE}, new int[] {SIDE, 0, SIDE}, 3);
protected void paintDetailsIndicator (Graphics g1) {
Graphics g = g1.create (getWidth() - SIDE, getHeight() - SIDE, SIDE, SIDE);
g.setColor(Color.GRAY);
g.fillPolygon(polygon);
}
protected void paintRequestedIndicator (Graphics g1) {
Graphics g = g1.create ();
g.setColor(Color.RED);
g.drawRect(0,0,getWidth()-1, getHeight()-1);
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (hasDetails)
paintDetailsIndicator (g);
if (isRequested)
paintRequestedIndicator(g);
}
private boolean isRequested;
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
isRequested = (table instanceof HasRequestedCell) && ((HasRequestedCell)table).isRequestedCell(row, column);
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
setOpaque(isSelected);
Color bg = getBackground();
setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 128));
return this;
}
}
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