DelegatesTreeListener.java

/**
 * Copyright (C) 2008-2010 Daniel Senff
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package de.danielsenff.imageflow.gui;

import java.awt.Point;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JTree;
import javax.swing.tree.TreePath;

import de.danielsenff.imageflow.ImageFlowView;
import de.danielsenff.imageflow.controller.GraphController;
import de.danielsenff.imageflow.controller.GraphControllerManager;
import de.danielsenff.imageflow.models.NodeListener;
import de.danielsenff.imageflow.models.delegates.UnitDelegate;
import de.danielsenff.imageflow.models.unit.UnitElement;
import de.danielsenff.imageflow.models.unit.UnitList;

/**
 * Listener vor {@link DelegatesPanel} related stuff
 * @author dahie
 *
 */
public class DelegatesTreeListener implements MouseListener, KeyListener {

	private ImageFlowView ifView;
	
	/**
	 * @param ifView
	 */
	public DelegatesTreeListener(final ImageFlowView ifView, GraphController graphController) {
		this.ifView = ifView;
	}
	
	private UnitList getNodes() {
		return ifView.getNodes();
	}
	
	private GraphPanel getGraphPanel() {
		return ifView.getGraphPanel();
	}
	
	private ImageFlowView getView() {
		return ifView;
	}
	
	public void mouseClicked(final MouseEvent e) {
		if (e.getClickCount() == 2) {
			final JTree tree = (JTree) e.getSource();

			final int selRow = tree.getRowForLocation(e.getX(), e.getY());
			final TreePath selPath = tree.getPathForLocation(e.getX(), e.getY());
			if(selRow != -1 && selPath.getLastPathComponent() instanceof UnitDelegate) {
				final UnitDelegate delegate = ((UnitDelegate)selPath.getLastPathComponent());
				Point point = UnitDelegate.POINT;
				GraphControllerManager.getInstance().getController().addNode(delegate, point);
			}
		}
	}

	public void mouseEntered(final MouseEvent arg0) {}
	public void mouseExited(final MouseEvent arg0) {}
	public void mousePressed(final MouseEvent arg0) {}
	public void mouseReleased(final MouseEvent arg0) {}
	
	
	
	/*
	 * KeyListener
	 */
	
	public void keyPressed(final KeyEvent e) {
		
		if (e.getKeyCode() == KeyEvent.VK_ENTER) {
			// on enter add new unit to workflow
			final JTree tree = (JTree) e.getSource();
			
			if (tree.getSelectionRows() != null && tree.getSelectionRows().length > 0) {
				// with 'Enter' all selected Units were inserted, therefore used an array
				final int[] selRows = tree.getSelectionRows();
				
				final TreePath[] selPaths = new TreePath[selRows.length];
				for (int i = 0; i < selRows.length; i++) {
					selPaths[i] = tree.getPathForRow(selRows[i]);
				}
				
				final Point insertPoint = UnitDelegate.POINT;
				// counts only Units, not Folders
				int realUnitCount = 0;
				
				for (int i = 0; i < selRows.length; i++) {
					if(selRows[i] != -1 && selPaths[i].getLastPathComponent() instanceof UnitDelegate) {
						final UnitDelegate delegate = ((UnitDelegate)selPaths[i].getLastPathComponent());
						Point point = new Point(insertPoint.x + realUnitCount * GraphPanel.GRIDSIZE,
								insertPoint.y + realUnitCount * GraphPanel.GRIDSIZE);
						GraphControllerManager.getInstance().getController().addNode(delegate, point);
						
						
						realUnitCount++;
					}
				}
			}
		}
	}

	public void keyTyped(final KeyEvent e) {}
	public void keyReleased(final KeyEvent e) {}
}