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/*FreeMind - A Program for creating and viewing Mindmaps
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*Copyright (C) 2000-2001 Joerg Mueller <joergmueller@bigfoot.com>
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*See COPYING for Details
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*This program is free software; you can redistribute it and/or
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*modify it under the terms of the GNU General Public License
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*as published by the Free Software Foundation; either version 2
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*of the License, or (at your option) any later version.
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*This program is distributed in the hope that it will be useful,
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*but WITHOUT ANY WARRANTY; without even the implied warranty of
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*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*GNU General Public License for more details.
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*You should have received a copy of the GNU General Public License
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*along with this program; if not, write to the Free Software
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*Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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/* $Id: CommonNodeMouseMotionListener.java,v 1.1.2.1.2.5 2007/08/03 17:24:01 dpolivaev Exp $ */
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package freemind.modes.common.listeners;
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import java.awt.Component;
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import java.awt.EventQueue;
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import java.awt.Rectangle;
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import java.awt.event.MouseEvent;
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import java.awt.geom.Point2D;
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import java.lang.reflect.InvocationTargetException;
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import java.util.Timer;
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import java.util.TimerTask;
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import javax.swing.JOptionPane;
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import javax.swing.SwingUtilities;
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import freemind.controller.NodeMouseMotionListener.NodeMouseMotionObserver;
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import freemind.main.Tools;
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import freemind.modes.ModeController;
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import freemind.view.mindmapview.MainView;
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import freemind.view.mindmapview.NodeView;
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* The MouseMotionListener which belongs to every NodeView
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public class CommonNodeMouseMotionListener implements NodeMouseMotionObserver {
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private final ModeController c;
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private static java.util.logging.Logger logger;
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/** time in ms, overwritten by property time_for_delayed_selection */
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private static Tools.IntHolder timeForDelayedSelection;
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/** overwritten by property delayed_selection_enabled */
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private static Tools.BooleanHolder delayedSelectionEnabled;
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* And a static method to reread this holder. This is used when the
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* selection method is changed via the option menu.
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public void updateSelectionMethod() {
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if (timeForDelayedSelection == null) {
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timeForDelayedSelection = new Tools.IntHolder();
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delayedSelectionEnabled = new Tools.BooleanHolder();
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delayedSelectionEnabled.setValue(c.getFrame().getProperty(
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"selection_method").equals("selection_method_direct") ? false
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* set time for delay to infinity, if selection_method equals
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* selection_method_by_click.
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if (c.getFrame().getProperty("selection_method").equals(
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"selection_method_by_click")) {
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timeForDelayedSelection.setValue(Integer.MAX_VALUE);
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timeForDelayedSelection.setValue(Integer.parseInt(c.getFrame()
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.getProperty("time_for_delayed_selection")));
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private Timer timerForDelayedSelection;
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* The mouse has to stay in this region to enable the selection after a
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private Rectangle controlRegionForDelayedSelection;
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public CommonNodeMouseMotionListener(ModeController controller) {
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logger = c.getFrame().getLogger(this.getClass().getName());
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if (delayedSelectionEnabled == null)
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updateSelectionMethod();
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public void mouseMoved(MouseEvent e) {
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logger.finest("Event: mouseMoved");
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// Invoked when the mouse button has been moved on a component (with no
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MainView node = ((MainView) e.getComponent());
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boolean isLink = (node).updateCursor(e.getX());
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// links are displayed in the status bar:
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c.getFrame().out(c.getLinkShortText(node.getNodeView().getModel()));
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// test if still in selection region:
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if (controlRegionForDelayedSelection != null
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&& delayedSelectionEnabled.getValue()) {
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if (!controlRegionForDelayedSelection.contains(e.getPoint())) {
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// point is not in the region. start timer again and adjust
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// region to the current point:
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/** Invoked when a mouse button is pressed on a component and then dragged. */
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public void mouseDragged(MouseEvent e) {
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logger.fine("Event: mouseDragged");
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// first stop the timer and select the node:
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stopTimerForDelayedSelection();
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NodeView nodeV = ((MainView) e.getComponent()).getNodeView();
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// if dragged for the first time, select the node:
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if (!c.getView().isSelected(nodeV))
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c.extendSelection(e);
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public void mouseClicked(MouseEvent e) {
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public void mouseEntered(MouseEvent e) {
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logger.finest("Event: mouseEntered");
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if(! JOptionPane.getFrameForComponent(e.getComponent()).isFocused())
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public void mousePressed(MouseEvent e) {
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logger.fine("Event: mousePressed");
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public void mouseExited(MouseEvent e) {
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logger.finest("Event: mouseExited");
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stopTimerForDelayedSelection();
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public void mouseReleased(MouseEvent e) {
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logger.fine("Event: mouseReleased");
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// handling click in mouseReleased rather than in mouseClicked
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// provides better interaction. If mouse was slightly moved
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// between pressed and released events, the event clicked
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// The behavior is not tested on Linux.
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// first stop the timer and select the node:
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stopTimerForDelayedSelection();
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c.extendSelection(e);
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// Right mouse <i>press</i> is <i>not</i> a popup trigger for Windows.
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// Only Right mouse release is a popup trigger!
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// OK, but Right mouse <i>press</i> <i>is</i> a popup trigger on Linux.
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if (e.isConsumed()) {
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if (e.getModifiers() == MouseEvent.BUTTON1_MASK) {
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// FIXME Dimitry: Double Click comes after Plain Click combining (un)folding with editing
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// if (e.getClickCount() % 2 == 0) {
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protected Rectangle getControlRegion(Point2D p) {
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// Create a small square around the given point.
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return new Rectangle((int) (p.getX() - side / 2),
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(int) (p.getY() - side / 2), side, side);
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public void createTimer(MouseEvent e) {
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// stop old timer if present.*/
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stopTimerForDelayedSelection();
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/* Region to check for in the sequel. */
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controlRegionForDelayedSelection = getControlRegion(e.getPoint());
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timerForDelayedSelection = new Timer();
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timerForDelayedSelection.schedule(new timeDelayedSelection(c, e),
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* if the new selection method is not enabled we put 0 to get direct
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(delayedSelectionEnabled.getValue()) ? timeForDelayedSelection
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protected void stopTimerForDelayedSelection() {
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if (timerForDelayedSelection != null)
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timerForDelayedSelection.cancel();
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timerForDelayedSelection = null;
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controlRegionForDelayedSelection = null;
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protected class timeDelayedSelection extends TimerTask {
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private final ModeController c;
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private final MouseEvent e;
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timeDelayedSelection(ModeController c, MouseEvent e) {
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/** TimerTask method to enable the selection after a given time. */
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* formerly in ControllerAdapter. To guarantee, that point-to-select
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* does not change selection if any meta key is pressed.
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SwingUtilities.invokeLater(new Runnable() {
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if (e.getModifiers() == 0 && !c.isBlocked()
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&& c.getView().getSelecteds().size() <= 1) {
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c.extendSelection(e);
added
removed
freemind/freemind/modes/common/listeners/CommonNodeMouseMotionListener.java
