/*
* TouchGraph LLC. Apache-Style Software License
*
*
* Copyright (c) 2001-2002 Alexander Shapiro. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* TouchGraph LLC (http://www.touchgraph.com/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "TouchGraph" or "TouchGraph LLC" must not be used to endorse
* or promote products derived from this software without prior written
* permission. For written permission, please contact
* alex@touchgraph.com
*
* 5. Products derived from this software may not be called "TouchGraph",
* nor may "TouchGraph" appear in their name, without prior written
* permission of alex@touchgraph.com.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL TOUCHGRAPH OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
*/
package com.touchgraph.graphlayout.interaction;
import com.touchgraph.graphlayout.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.Font;
import java.awt.event.*;
import java.applet.*;
import java.io.*;
import java.util.*;
/** GLEditUI: User Interface for editing the graph.
*
* @author Alexander Shapiro
* @version 1.21 $Id: GLEditUI.java,v 1.1.1.1 2007/01/07 07:58:19 andrew Exp $
*/
public class GLEditUI extends TGUserInterface {
/** True when the current UI is active. */
TGPanel tgPanel;
DragAddUI dragAddUI;
DragNodeUI dragNodeUI;
DragMultiselectUI dragMultiselectUI;
TGAbstractClickUI switchSelectUI;
TGAbstractDragUI hvDragUI;
GLEditMouseListener ml;
GLEditMouseMotionListener mml;
JPopupMenu nodePopup;
JPopupMenu edgePopup;
JPopupMenu backPopup;
Node popupNode;
Edge popupEdge;
AbstractAction deleteSelectAction;
final KeyStroke deleteKey = KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0);
// ............
/** Constructor with TGPanel <tt>tgp</tt>.
*/
public GLEditUI( TGPanel tgp ) {
active = false;
tgPanel = tgp;
ml = new GLEditMouseListener();
mml = new GLEditMouseMotionListener();
deleteSelectAction = new AbstractAction("DeleteSelect") {
public void actionPerformed(ActionEvent e) {
Node select = tgPanel.getSelect();
if(select!=null) {
tgPanel.deleteNode(select);
tgPanel.repaint();
}
}
};
dragAddUI = new DragAddUI(tgPanel);
dragNodeUI = new DragNodeUI(tgPanel);
dragMultiselectUI = new DragMultiselectUI(tgPanel);
switchSelectUI = tgPanel.getSwitchSelectUI();
setUpNodePopup();
setUpEdgePopup();
setUpBackPopup();
}
public GLEditUI( GLPanel glPanel ) {
this(glPanel.getTGPanel());
hvDragUI = glPanel.hvScroll.getHVDragUI();
}
public void activate() {
tgPanel.addMouseListener(ml);
tgPanel.addMouseMotionListener(mml);
tgPanel.getActionMap().put("DeleteSelect", deleteSelectAction);
ComponentInputMap cim = new ComponentInputMap(tgPanel);
cim.put(deleteKey, "DeleteSelect");
tgPanel.setInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW, cim);
active = true;
}
public void deactivate() {
//A hack. Want to prevent dragMultiselect from remaining active when user switches to
//navigate mode. Keeping an "active" variable resolves some comlex issues with the flow
//of controll, caused by dragMultiselect calling it's parents deactivate method when it
//is activated.
if (!active) dragMultiselectUI.deactivate();
tgPanel.removeMouseListener(ml);
tgPanel.removeMouseMotionListener(mml);
tgPanel.getInputMap().put(deleteKey, null);
tgPanel.getActionMap().put("DeleteSelect", null);
active = false;
}
class GLEditMouseListener extends MouseAdapter {
public void mousePressed(MouseEvent e) {
Node mouseOverN = tgPanel.getMouseOverN();
Node select = tgPanel.getSelect();
if (e.getModifiers() == MouseEvent.BUTTON1_MASK) {
if (mouseOverN != null) {
if(mouseOverN!=select)
dragNodeUI.activate(e);
else
dragAddUI.activate(e);
}
else
if(hvDragUI!=null) hvDragUI.activate(e);
}
}
public void mouseClicked(MouseEvent e) {
if (e.getModifiers() == MouseEvent.BUTTON1_MASK)
switchSelectUI.activate(e);
}
public void mouseReleased(MouseEvent e) {
if (e.isPopupTrigger()) {
popupNode = tgPanel.getMouseOverN();
popupEdge = tgPanel.getMouseOverE();
if (popupNode!=null) {
tgPanel.setMaintainMouseOver(true);
nodePopup.show(e.getComponent(), e.getX(), e.getY());
}
else if (popupEdge!=null) {
tgPanel.setMaintainMouseOver(true);
edgePopup.show(e.getComponent(), e.getX(), e.getY());
}
else {
backPopup.show(e.getComponent(), e.getX(), e.getY());
}
}
}
}
class GLEditMouseMotionListener extends MouseMotionAdapter {
public void mouseMoved(MouseEvent e) {
//tgPanel.startDamper();
}
}
private void setUpNodePopup() {
nodePopup = new JPopupMenu();
JMenuItem menuItem;
JMenu navigateMenu = new JMenu("Navigate");
menuItem = new JMenuItem("Delete Node");
ActionListener deleteNodeAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupNode!=null) {
tgPanel.deleteNode(popupNode);
}
}
};
menuItem.addActionListener(deleteNodeAction);
nodePopup.add(menuItem);
menuItem = new JMenuItem("Expand Node");
ActionListener expandAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupNode!=null) {
tgPanel.expandNode(popupNode);
}
}
};
menuItem.addActionListener(expandAction);
navigateMenu.add(menuItem);
menuItem = new JMenuItem("Collapse Node");
ActionListener collapseAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupNode!=null) {
tgPanel.collapseNode(popupNode );
}
}
};
menuItem.addActionListener(collapseAction);
navigateMenu.add(menuItem);
menuItem = new JMenuItem("Hide Node");
ActionListener hideAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
Node select = tgPanel.getSelect();
if(popupNode!=null) {
tgPanel.hideNode(popupNode);
}
}
};
menuItem.addActionListener(hideAction);
navigateMenu.add(menuItem);
nodePopup.add(navigateMenu);
nodePopup.addPopupMenuListener(new PopupMenuListener() {
public void popupMenuCanceled(PopupMenuEvent e) {}
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
tgPanel.setMaintainMouseOver(false);
tgPanel.setMouseOverN(null);
tgPanel.repaint();
}
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {}
});
}
private void setUpEdgePopup() {
edgePopup = new JPopupMenu();
JMenuItem menuItem;
menuItem = new JMenuItem("Relax Edge");
ActionListener relaxEdgeAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupEdge!=null) {
popupEdge.setLength(popupEdge.getLength()*4);
tgPanel.resetDamper();
}
}
};
menuItem.addActionListener(relaxEdgeAction);
edgePopup.add(menuItem);
menuItem = new JMenuItem("Tighten Edge");
ActionListener tightenEdgeAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupEdge!=null) {
popupEdge.setLength(popupEdge.getLength()/4);
tgPanel.resetDamper();
}
}
};
menuItem.addActionListener(tightenEdgeAction);
edgePopup.add(menuItem);
menuItem = new JMenuItem("Delete Edge");
ActionListener deleteEdgeAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(popupEdge!=null) {
tgPanel.deleteEdge(popupEdge);
}
}
};
menuItem.addActionListener(deleteEdgeAction);
edgePopup.add(menuItem);
edgePopup.addPopupMenuListener(new PopupMenuListener() {
public void popupMenuCanceled(PopupMenuEvent e) {}
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
tgPanel.setMaintainMouseOver(false);
tgPanel.setMouseOverE(null);
tgPanel.repaint();
}
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {}
});
}
private void setUpBackPopup() {
backPopup = new JPopupMenu();
JMenuItem menuItem;
menuItem = new JMenuItem("Multi-Select");
ActionListener multiselectAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
dragMultiselectUI.activate(GLEditUI.this);
}
};
menuItem.addActionListener(multiselectAction);
backPopup.add(menuItem);
menuItem = new JMenuItem("Start Over");
ActionListener startOverAction = new ActionListener() {
public void actionPerformed( ActionEvent e ) {
tgPanel.clearAll();
tgPanel.clearSelect();
try {
tgPanel.addNode();
} catch ( TGException tge ) {
System.err.println(tge.getMessage());
tge.printStackTrace(System.err);
}
tgPanel.fireResetEvent();
tgPanel.repaint();
}
};
menuItem.addActionListener(startOverAction);
backPopup.add(menuItem);
}
} // end com.touchgraph.graphlayout.interaction.GLEditUI