/*
* The University of Wales, Cardiff Triana Project Software License (Based
* on the Apache Software License Version 1.1)
*
* Copyright (c) 2007 University of Wales, Cardiff. All rights reserved.
*
* Redistribution and use of the software 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 the University of Wales, Cardiff for the Triana
* Project (http://www.trianacode.org)." Alternately, this
* acknowledgment may appear in the software itself, if and wherever
* such third-party acknowledgments normally appear.
*
* 4. The names "Triana" and "University of Wales, Cardiff" must not be
* used to endorse or promote products derived from this software
* without prior written permission. For written permission, please
* contact triana@trianacode.org.
*
* 5. Products derived from this software may not be called "Triana," nor
* may Triana appear in their name, without prior written permission of
* the University of Wales, Cardiff.
*
* 6. This software may not be sold, used or incorporated into any product
* for sale to third parties.
*
* 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 UNIVERSITY OF WALES, CARDIFF 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.
*
* ------------------------------------------------------------------------
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Triana Project. For more information on the
* Triana Project, please see. http://www.trianacode.org.
*
* This license is based on the BSD license as adopted by the Apache
* Foundation and is governed by the laws of England and Wales.
*
*/
package org.trianacode.gui.main.imp;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.Action;
import org.trianacode.gui.hci.tools.TaskGraphViewManager;
import org.trianacode.gui.hci.tools.UpdateActionConstants;
import org.trianacode.taskgraph.Task;
/**
* MainTrianaTask is a class which creates the a Triana Icon consisting of a set of input nodes and output nodes.
* <p/>
* A MainTrianaTask is TrianaTool which is a JPanel, which is a Container, which is a JComponent and therefore has the
* ability to ommit event to the relevant listeners. MainTrianaTask contains two Vectors (in java.util) to store the
* pointers to the TrianaNode Objects. Vector can be increased and decreased in size.
* <p/>
*
* @author Ian Taylor
* @version $Revision: 4048 $
*/
public class MainTrianaTask extends TrianaTask implements MouseListener, ActionListener {
/**
* the plus/minus icons
*/
private PlusMinusIcon addinput = new PlusMinusIcon(true, true);
private PlusMinusIcon addoutput = new PlusMinusIcon(true, false);
private PlusMinusIcon removeinput = new PlusMinusIcon(false, true);
private PlusMinusIcon removeoutput = new PlusMinusIcon(false, false);
/**
* a flag indicating whether the tool has been initialised
*/
private boolean init = false;
private int id = 0;
private static int idcount = 0;
/**
* Constructs a new MainTrianaTask for viewing the specified task
*/
public MainTrianaTask(Task task) {
super(task);
id = idcount++;
addMouseListener(this);
}
/**
* Notifies this component that it now has a parent component. When this method is invoked, the chain of parent
* components is set up with <code>KeyboardAction</code> event listeners.
*
* @see #registerKeyboardAction
*/
public void addNotify() {
super.addNotify();
if (!init) {
initPlusMinusIcons();
invalidateSize();
if (getMainComponent() != null) {
getMainComponent().addMouseListener(this);
}
init = true;
}
}
/**
* Adds the little plus/minus node icons to the tool
*/
private void initPlusMinusIcons() {
addinput.setVisible(false);
addoutput.setVisible(false);
removeinput.setVisible(false);
removeoutput.setVisible(false);
addinput.addMouseListener(this);
addoutput.addMouseListener(this);
removeinput.addMouseListener(this);
removeoutput.addMouseListener(this);
addinput.addActionListener(this);
addoutput.addActionListener(this);
removeinput.addActionListener(this);
removeoutput.addActionListener(this);
add(addinput, TrianaToolLayout.ADD_INPUT);
add(addoutput, TrianaToolLayout.ADD_OUTPUT);
add(removeinput, TrianaToolLayout.REMOVE_INPUT);
add(removeoutput, TrianaToolLayout.REMOVE_OUTPUT);
}
/**
* Invoked when an action occurs.
*/
public void actionPerformed(ActionEvent event) {
Task task = getTaskInterface();
Action action = null;
if (event.getSource() == addinput) {
action = TaskGraphViewManager.getUpdateAction(task, UpdateActionConstants.INCREASE_INPUT_NODES_ACTION);
} else if (event.getSource() == removeinput) {
action = TaskGraphViewManager.getUpdateAction(task, UpdateActionConstants.DECREASE_INPUT_NODES_ACTION);
} else if (event.getSource() == addoutput) {
action = TaskGraphViewManager.getUpdateAction(task, UpdateActionConstants.INCREASE_OUTPUT_NODES_ACTION);
} else if (event.getSource() == removeoutput) {
action = TaskGraphViewManager.getUpdateAction(task, UpdateActionConstants.DECREASE_OUTPUT_NODES_ACTION);
}
if (action != null) {
ActionEvent evt = new ActionEvent(getTaskInterface(), ActionEvent.ACTION_PERFORMED,
(String) action.getValue(Action.ACTION_COMMAND_KEY), event.getWhen(), event.getModifiers());
action.actionPerformed(evt);
updatePlusMinusVisible();
}
}
public void updatePlusMinusVisible() {
Task task = getTaskInterface();
addinput.setVisible(TaskGraphViewManager.isUpdateIcon(task, UpdateActionConstants.INCREASE_INPUT_NODES_ACTION));
addoutput.setVisible(
TaskGraphViewManager.isUpdateIcon(task, UpdateActionConstants.INCREASE_OUTPUT_NODES_ACTION));
removeinput
.setVisible(TaskGraphViewManager.isUpdateIcon(task, UpdateActionConstants.DECREASE_INPUT_NODES_ACTION));
removeoutput.setVisible(
TaskGraphViewManager.isUpdateIcon(task, UpdateActionConstants.DECREASE_OUTPUT_NODES_ACTION));
}
public void mouseClicked(MouseEvent event) {
}
public void mouseEntered(MouseEvent event) {
updatePlusMinusVisible();
}
public void mouseExited(MouseEvent event) {
addinput.setVisible(false);
addoutput.setVisible(false);
removeinput.setVisible(false);
removeoutput.setVisible(false);
}
public void mousePressed(MouseEvent event) {
}
public void mouseReleased(MouseEvent event) {
}
/**
* Cleans up the node editor window and parameter componenet if there is one for this unit.
*/
public void dispose() {
removeMouseListener(this);
addinput.removeActionListener(this);
addoutput.removeActionListener(this);
removeinput.removeActionListener(this);
removeoutput.removeActionListener(this);
if (getTaskInterface() != null) {
getTaskInterface().removeTaskListener(this);
}
super.dispose();
}
/**
* Returns a string representation of this component and its values.
*
* @return a string representation of this component
* @since JDK1.0
*/
public String toString() {
return String.valueOf(id);
}
}