// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/gui/action/DragNDrop.java,v 1.6 2005/07/12 20:50:25 mstover1 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.action;
import java.awt.event.ActionEvent;
import java.util.HashSet;
import java.util.Set;
import org.apache.jmeter.control.Controller;
import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.tree.JMeterTreeListener;
import org.apache.jmeter.gui.tree.JMeterTreeNode;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.TestPlan;
import org.apache.jmeter.testelement.WorkBench;
/**
* @author mstover
* @version $Revision: 1.6 $
*/
public class DragNDrop extends AbstractAction {
public final static String ADD = "drag_n_drop.add";//$NON-NLS-1$
public final static String INSERT_BEFORE = "drag_n_drop.insert_before";//$NON-NLS-1$
public final static String INSERT_AFTER = "drag_n_drop.insert_after";//$NON-NLS-1$
private static Set commands = new HashSet();
static {
commands.add(ADD);
commands.add(INSERT_BEFORE);
commands.add(INSERT_AFTER);
}
/**
* @see Command#doAction(ActionEvent)
*/
public void doAction(ActionEvent e) {
String action = e.getActionCommand();
GuiPackage guiPackage = GuiPackage.getInstance();
JMeterTreeNode[] draggedNodes = guiPackage.getTreeListener().getDraggedNodes();
JMeterTreeListener treeListener = guiPackage.getTreeListener();
JMeterTreeNode currentNode = treeListener.getCurrentNode();
JMeterTreeNode parentNode = (JMeterTreeNode) currentNode.getParent();
TestElement te = currentNode.getTestElement();
if (te instanceof TestPlan || te instanceof WorkBench) {
parentNode = null; // So elements can only be added as children
}
// System.out.println(action+" "+te.getClass().getName());
if (ADD.equals(action) && canAddTo(currentNode)) {
removeNodesFromParents(draggedNodes);
for (int i = 0; i < draggedNodes.length; i++) {
GuiPackage.getInstance().getTreeModel().insertNodeInto(draggedNodes[i], currentNode,
currentNode.getChildCount());
}
} else if (INSERT_BEFORE.equals(action) && canAddTo(parentNode)) {
removeNodesFromParents(draggedNodes);
for (int i = 0; i < draggedNodes.length; i++) {
int index = parentNode.getIndex(currentNode);
GuiPackage.getInstance().getTreeModel().insertNodeInto(draggedNodes[i], parentNode, index);
}
} else if (INSERT_AFTER.equals(action) && canAddTo(parentNode)) {
removeNodesFromParents(draggedNodes);
for (int i = 0; i < draggedNodes.length; i++) {
int index = parentNode.getIndex(currentNode) + 1;
GuiPackage.getInstance().getTreeModel().insertNodeInto(draggedNodes[i], parentNode, index);
}
}
GuiPackage.getInstance().getMainFrame().repaint();
}
/**
* Determine whether or not dragged nodes can be added to this parent. Also
* used by Paste TODO tighten rules TODO move to MenuFactory?
*
* @param parentNode
* @return whether it is OK to add the dragged nodes to this parent
*/
static boolean canAddTo(JMeterTreeNode parentNode) {
if (null == parentNode)
return false;
TestElement te = parentNode.getTestElement();
// System.out.println("Add to: "+te.getClass().getName());
if (te instanceof Controller)
return true;
if (te instanceof Sampler)
return true;
if (te instanceof WorkBench)
return true;
if (te instanceof TestPlan)
return true;
return false;
}
protected void removeNodesFromParents(JMeterTreeNode[] nodes) {
for (int i = 0; i < nodes.length; i++) {
GuiPackage.getInstance().getTreeModel().removeNodeFromParent(nodes[i]);
}
}
/**
* @see Command#getActionNames()
*/
public Set getActionNames() {
return commands;
}
}