/*
* $Id: TreeRolloverProducer.java 3296 2009-03-11 12:06:01Z kleopatra $
*
* Copyright 2007 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
package org.jdesktop.swingx.rollover;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import javax.swing.JComponent;
import org.jdesktop.swingx.JXTree;
/**
* Tree-specific implementation of RolloverProducer.
* <p>
* This implementation assumes a "hit" for rollover if the mouse is anywhere in
* the total width of the tree. Additionally, a pressed to the right (but
* outside of the label bounds) is re-dispatched as a pressed just inside the
* label bounds. This is a first go for #166-swingx.
* <p>
*
* PENDING JW: bidi-compliance of pressed?
*
* @author Jeanette Winzenburg
*/
public class TreeRolloverProducer extends RolloverProducer {
@Override
public void mousePressed(MouseEvent e) {
JXTree tree = (JXTree) e.getComponent();
Point mousePoint = e.getPoint();
int labelRow = tree.getRowForLocation(mousePoint.x, mousePoint.y);
// default selection
if (labelRow >= 0)
return;
int row = tree.getClosestRowForLocation(mousePoint.x, mousePoint.y);
Rectangle bounds = tree.getRowBounds(row);
if (bounds == null) {
row = -1;
} else {
if ((bounds.y + bounds.height < mousePoint.y)
|| bounds.x > mousePoint.x) {
row = -1;
}
}
// no hit
if (row < 0)
return;
tree.dispatchEvent(new MouseEvent(tree, e.getID(), e.getWhen(), e
.getModifiers(), bounds.x + bounds.width - 2, mousePoint.y, e
.getClickCount(), e.isPopupTrigger(), e.getButton()));
}
@Override
protected void updateRolloverPoint(JComponent component, Point mousePoint) {
JXTree tree = (JXTree) component;
int row = tree.getClosestRowForLocation(mousePoint.x, mousePoint.y);
Rectangle bounds = tree.getRowBounds(row);
if (bounds == null) {
row = -1;
} else {
if ((bounds.y + bounds.height < mousePoint.y)
|| bounds.x > mousePoint.x) {
row = -1;
}
}
int col = row < 0 ? -1 : 0;
rollover.x = col;
rollover.y = row;
}
}