// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/gui/tree/JMeterTreeListener.java,v 1.15 2004/02/20 02:20:47 jsalvata Exp $
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.jmeter.gui.tree;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
import org.apache.jmeter.control.gui.TestPlanGui;
import org.apache.jmeter.control.gui.WorkBenchGui;
import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.MainFrame;
import org.apache.jmeter.gui.action.DragNDrop;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;
/**
* @author Michael Stover
* Created March 11, 2001
* @version $Revision: 1.15 $ Last updated: $Date: 2004/02/20 02:20:47 $
*/
public class JMeterTreeListener
implements TreeSelectionListener, MouseListener, KeyListener,
MouseMotionListener
{
transient private static Logger log = LoggingManager.getLoggerForClass();
//Container endWindow;
//JPopupMenu pop;
private TreePath currentPath;
private ActionListener actionHandler;
private JMeterTreeModel model;
private JTree tree;
private boolean dragging = false;
private JMeterTreeNode[] draggedNodes;
private JLabel dragIcon = new JLabel(JMeterUtils.getImage("leafnode.gif"));
/**
* Constructor for the JMeterTreeListener object.
*/
public JMeterTreeListener(JMeterTreeModel model)
{
this.model = model;
dragIcon.validate();
dragIcon.setVisible(true);
}
public JMeterTreeListener()
{
dragIcon.validate();
dragIcon.setVisible(true);
}
public void setModel(JMeterTreeModel m)
{
model = m;
}
/**
* Sets the ActionHandler attribute of the JMeterTreeListener object.
*
* @param ah the new ActionHandler value
*/
public void setActionHandler(ActionListener ah)
{
actionHandler = ah;
}
/**
* Sets the JTree attribute of the JMeterTreeListener object.
*
* @param tree the new JTree value
*/
public void setJTree(JTree tree)
{
this.tree = tree;
}
/**
* Sets the EndWindow attribute of the JMeterTreeListener object.
*
* @param window the new EndWindow value
*/
public void setEndWindow(Container window)
{
//endWindow = window;
}
/**
* Gets the JTree attribute of the JMeterTreeListener object.
*
* @return tree the current JTree value.
*/
public JTree getJTree()
{
return tree;
}
/**
* Gets the CurrentNode attribute of the JMeterTreeListener object.
*
* @return the CurrentNode value
*/
public JMeterTreeNode getCurrentNode()
{
if (currentPath != null)
{
if (currentPath.getLastPathComponent() != null)
{
return (JMeterTreeNode) currentPath.getLastPathComponent();
}
else
{
return (JMeterTreeNode) currentPath
.getParentPath()
.getLastPathComponent();
}
}
else
{
return (JMeterTreeNode) model.getRoot();
}
}
public JMeterTreeNode[] getSelectedNodes()
{
TreePath[] paths = tree.getSelectionPaths();
if (paths == null)
{
return new JMeterTreeNode[] { getCurrentNode()};
}
JMeterTreeNode[] nodes = new JMeterTreeNode[paths.length];
for (int i = 0; i < paths.length; i++)
{
nodes[i] = (JMeterTreeNode) paths[i].getLastPathComponent();
}
return nodes;
}
public TreePath removedSelectedNode()
{
currentPath = currentPath.getParentPath();
return currentPath;
}
public void valueChanged(TreeSelectionEvent e)
{
currentPath = e.getNewLeadSelectionPath();
actionHandler.actionPerformed(new ActionEvent(this, 3333, "edit"));
}
public void mouseClicked(MouseEvent ev)
{
}
public void mouseReleased(MouseEvent e)
{
if (dragging && isValidDragAction(draggedNodes, getCurrentNode()))
{
dragging = false;
JPopupMenu dragNdrop = new JPopupMenu();
JMenuItem item =
new JMenuItem(JMeterUtils.getResString("Insert Before"));
item.addActionListener(actionHandler);
item.setActionCommand(DragNDrop.INSERT_BEFORE);
dragNdrop.add(item);
item = new JMenuItem(JMeterUtils.getResString("Insert After"));
item.addActionListener(actionHandler);
item.setActionCommand(DragNDrop.INSERT_AFTER);
dragNdrop.add(item);
item = new JMenuItem(JMeterUtils.getResString("Add as Child"));
item.addActionListener(actionHandler);
item.setActionCommand(DragNDrop.ADD);
dragNdrop.add(item);
dragNdrop.addSeparator();
item = new JMenuItem(JMeterUtils.getResString("Cancel"));
dragNdrop.add(item);
displayPopUp(e, dragNdrop);
}
else
{
GuiPackage.getInstance().getMainFrame().repaint();
}
dragging = false;
}
public JMeterTreeNode[] getDraggedNodes()
{
return draggedNodes;
}
/**
* Tests if the node is being dragged into one of it's own sub-nodes, or
* into itself.
*/
private boolean isValidDragAction(
JMeterTreeNode[] source,
JMeterTreeNode dest)
{
boolean isValid = true;
TreeNode[] path = dest.getPath();
for (int i = 0; i < path.length; i++)
{
if (contains(source,path[i]))
{
isValid = false;
}
}
return isValid;
}
public void mouseEntered(MouseEvent e)
{
}
private void changeSelectionIfDragging(MouseEvent e)
{
if (dragging)
{
GuiPackage.getInstance().getMainFrame().drawDraggedComponent(
dragIcon,
e.getX(),
e.getY());
if (tree.getPathForLocation(e.getX(), e.getY()) != null)
{
currentPath = tree.getPathForLocation(e.getX(), e.getY());
if (!contains(draggedNodes,getCurrentNode()))
{
tree.setSelectionPath(currentPath);
}
}
}
}
private boolean contains(Object[] container,Object item)
{
for (int i = 0; i < container.length; i++)
{
if(container[i] == item)
{
return true;
}
}
return false;
}
public void mousePressed(MouseEvent e)
{
// Get the Main Frame.
MainFrame mainFrame = GuiPackage.getInstance().getMainFrame();
// Close any Main Menu that is open
mainFrame.closeMenu();
int selRow = tree.getRowForLocation(e.getX(), e.getY());
if (tree.getPathForLocation(e.getX(), e.getY()) != null)
{
currentPath = tree.getPathForLocation(e.getX(), e.getY());
}
if (selRow != -1)
{
//updateMainMenu(((JMeterGUIComponent)
// getCurrentNode().getUserObject()).createPopupMenu());
if (isRightClick(e))
{
if (tree.getSelectionCount() < 2)
{
tree.setSelectionPath(currentPath);
}
if (getCurrentNode() instanceof JMeterTreeNode)
{
log.debug("About to display pop-up");
displayPopUp(e);
}
}
}
}
public void mouseDragged(MouseEvent e)
{
if (!dragging)
{
dragging = true;
draggedNodes = getSelectedNodes();
if (draggedNodes[0].getUserObject() instanceof TestPlanGui
|| draggedNodes[0].getUserObject() instanceof WorkBenchGui)
{
dragging = false;
}
}
changeSelectionIfDragging(e);
}
public void mouseMoved(MouseEvent e)
{
}
public void mouseExited(MouseEvent ev)
{
}
public void keyPressed(KeyEvent e)
{
}
public void keyReleased(KeyEvent e)
{
}
public void keyTyped(KeyEvent e)
{
}
private boolean isRightClick(MouseEvent e)
{
return (MouseEvent.BUTTON2_MASK & e.getModifiers()) > 0
|| (MouseEvent.BUTTON3_MASK == e.getModifiers());
}
/* NOTUSED
private void updateMainMenu(JPopupMenu menu)
{
try
{
MainFrame mainFrame = GuiPackage.getInstance().getMainFrame();
mainFrame.setEditMenu(menu);
}
catch (NullPointerException e)
{
log.error("Null pointer: JMeterTreeListener.updateMenuItem()", e);
log.error("", e);
}
}
*/
private void displayPopUp(MouseEvent e)
{
JPopupMenu pop = getCurrentNode().createPopupMenu();
GuiPackage.getInstance().displayPopUp(e, pop);
}
private void displayPopUp(MouseEvent e, JPopupMenu popup)
{
log.warn("Shouldn't be here");
if (popup != null)
{
popup.pack();
popup.show(tree, e.getX(), e.getY());
popup.setVisible(true);
popup.requestFocus();
}
}
}