001 /*
002 * $Id: TableRolloverController.java 3100 2008-10-14 22:33:10Z rah003 $
003 *
004 * Copyright 2008 Sun Microsystems, Inc., 4150 Network Circle,
005 * Santa Clara, California 95054, U.S.A. All rights reserved.
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
020 */
021 package org.jdesktop.swingx.rollover;
022
023 import java.awt.Cursor;
024 import java.awt.Point;
025 import java.awt.Rectangle;
026
027 import javax.swing.JTable;
028 import javax.swing.table.TableCellRenderer;
029
030
031 /**
032 * listens to rollover properties.
033 * Repaints effected component regions.
034 * Updates link cursor.
035 *
036 * @author Jeanette Winzenburg
037 */
038 public class TableRolloverController<T extends JTable> extends RolloverController<T> {
039
040 private Cursor oldCursor;
041
042 // --------------------------- JTable rollover
043
044 @Override
045 protected void rollover(Point oldLocation, Point newLocation) {
046 if (oldLocation != null) {
047 Rectangle r = component.getCellRect(oldLocation.y, oldLocation.x, false);
048 r.x = 0;
049 r.width = component.getWidth();
050 component.repaint(r);
051 }
052 if (newLocation != null) {
053 Rectangle r = component.getCellRect(newLocation.y, newLocation.x, false);
054 r.x = 0;
055 r.width = component.getWidth();
056 component.repaint(r);
057 }
058 setRolloverCursor(newLocation);
059 }
060
061 /**
062 * overridden to return false if cell editable.
063 */
064 @Override
065 protected boolean isClickable(Point location) {
066 return super.isClickable(location) && !component.isCellEditable(location.y, location.x);
067 }
068
069 @Override
070 protected RolloverRenderer getRolloverRenderer(Point location, boolean prepare) {
071 TableCellRenderer renderer = component.getCellRenderer(location.y, location.x);
072 RolloverRenderer rollover = renderer instanceof RolloverRenderer ?
073 (RolloverRenderer) renderer : null;
074 if ((rollover != null) && !rollover.isEnabled()) {
075 rollover = null;
076 }
077 if ((rollover != null) && prepare) {
078 component.prepareRenderer(renderer, location.y, location.x);
079 }
080 return rollover;
081 }
082
083
084 private void setRolloverCursor(Point location) {
085 if (hasRollover(location)) {
086 if (oldCursor == null) {
087 oldCursor = component.getCursor();
088 component.setCursor(Cursor
089 .getPredefinedCursor(Cursor.HAND_CURSOR));
090 }
091 } else {
092 if (oldCursor != null) {
093 component.setCursor(oldCursor);
094 oldCursor = null;
095 }
096 }
097
098 }
099
100
101 @Override
102 protected Point getFocusedCell() {
103 int leadRow = component.getSelectionModel()
104 .getLeadSelectionIndex();
105 int leadColumn = component.getColumnModel().getSelectionModel()
106 .getLeadSelectionIndex();
107 return new Point(leadColumn, leadRow);
108 }
109
110 }