f@0: /*  
f@0:  CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
f@0:   
f@0:  Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
f@0: 
f@0:  This program is free software: you can redistribute it and/or modify
f@0:  it under the terms of the GNU General Public License as published by
f@0:  the Free Software Foundation, either version 3 of the License, or
f@0:  (at your option) any later version.
f@0: 
f@0:  This program is distributed in the hope that it will be useful,
f@0:  but WITHOUT ANY WARRANTY; without even the implied warranty of
f@0:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
f@0:  GNU General Public License for more details.
f@0: 
f@0:  You should have received a copy of the GNU General Public License
f@0:  along with this program.  If not, see <http://www.gnu.org/licenses/>.
f@0: */  
f@0: package uk.ac.qmul.eecs.ccmi.speech;
f@0: 
f@0: import java.awt.event.ActionEvent;
f@0: import java.awt.event.KeyEvent;
f@0: 
f@0: import javax.swing.AbstractAction;
f@0: import javax.swing.JTree;
f@0: import javax.swing.KeyStroke;
f@0: import javax.swing.tree.DefaultMutableTreeNode;
f@0: import javax.swing.tree.TreePath;
f@0: 
f@0: import uk.ac.qmul.eecs.ccmi.sound.PlayerListener;
f@0: import uk.ac.qmul.eecs.ccmi.sound.SoundEvent;
f@0: import uk.ac.qmul.eecs.ccmi.sound.SoundFactory;
f@0: 
f@0: /**
f@0:  *
f@0:  */
f@0: @SuppressWarnings("serial")
f@0: public class TreeSonifier {
f@0: 
f@0: 	public void sonify(final JTree tree){
f@0: 		/* select the root node as selected */ 
f@0: 		tree.setSelectionRow(0);
f@0: 		/* Overwrite keystrokes up,down,left,right arrows and space, shift, ctrl */
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN,0),"down");
f@0: 		   tree.getActionMap().put("down", new AbstractAction(){
f@0: 				@Override
f@0: 				public void actionPerformed(ActionEvent evt) {
f@0: 					DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
f@0: 					/* look if we've got a sibling node after (we are not at the bottom) */
f@0: 					DefaultMutableTreeNode nextTreeNode = treeNode.getNextSibling(); 
f@0: 					SoundEvent loop = null;
f@0: 					if(nextTreeNode == null){
f@0: 						DefaultMutableTreeNode parent = (DefaultMutableTreeNode)treeNode.getParent();
f@0: 						if(parent == null) /* root node, just stay there */
f@0: 							nextTreeNode = treeNode;
f@0: 						else /* loop = go to first child of own parent */
f@0: 							nextTreeNode = (DefaultMutableTreeNode)parent.getFirstChild();
f@0: 						loop = SoundEvent.LIST_BOTTOM_REACHED;
f@0: 					}
f@0: 					tree.setSelectionPath(new TreePath(nextTreeNode.getPath()));
f@0: 					final String currentPathSpeech = currentPathSpeech(tree);
f@0: 					SoundFactory.getInstance().play(loop, new PlayerListener(){
f@0: 						public void playEnded() {
f@0: 							NarratorFactory.getInstance().speak(currentPathSpeech);
f@0: 						}
f@0: 					});
f@0: 				}});
f@0: 		   
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_UP,0),"up");
f@0: 		   tree.getActionMap().put("up", new AbstractAction(){
f@0: 				@Override
f@0: 				public void actionPerformed(ActionEvent evt) {
f@0: 					DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
f@0: 					DefaultMutableTreeNode previousTreeNode = treeNode.getPreviousSibling();
f@0: 					SoundEvent loop = null;
f@0: 					if(previousTreeNode == null){
f@0: 						DefaultMutableTreeNode parent = (DefaultMutableTreeNode)treeNode.getParent();
f@0: 						if(parent == null) /* root node */
f@0: 							previousTreeNode = treeNode;
f@0: 						else 
f@0: 							previousTreeNode = (DefaultMutableTreeNode)parent.getLastChild();
f@0: 						loop = SoundEvent.LIST_TOP_REACHED;
f@0: 					}
f@0: 					tree.setSelectionPath(new TreePath(previousTreeNode.getPath()));
f@0: 					final String currentPathSpeech = currentPathSpeech(tree);
f@0: 					SoundFactory.getInstance().play(loop, new PlayerListener(){
f@0: 						public void playEnded() {
f@0: 							NarratorFactory.getInstance().speak(currentPathSpeech);
f@0: 						}
f@0: 					});
f@0: 				}});
f@0: 		   
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT,0),"right");
f@0: 		   tree.getActionMap().put("right", new AbstractAction(){
f@0: 			   @Override
f@0: 			   public void actionPerformed(ActionEvent evt) {
f@0: 				   TreePath path = tree.getSelectionPath();
f@0: 				   DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode)path.getLastPathComponent();
f@0: 				   if(treeNode.isLeaf()){
f@0: 					   SoundFactory.getInstance().play(SoundEvent.ERROR);
f@0: 				   }
f@0: 				   else{
f@0: 					   tree.expandPath(path);
f@0: 					   tree.setSelectionPath(new TreePath(((DefaultMutableTreeNode)treeNode.getFirstChild()).getPath()));
f@0: 					   final String currentPathSpeech = currentPathSpeech(tree);
f@0: 					   SoundFactory.getInstance().play(SoundEvent.TREE_NODE_EXPAND,new PlayerListener(){
f@0: 						@Override
f@0: 						public void playEnded() {
f@0: 							NarratorFactory.getInstance().speak(currentPathSpeech);
f@0: 						}
f@0: 					   });
f@0: 				   }
f@0: 			   }
f@0: 		   });
f@0: 		   
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT,0),"left");
f@0: 		   tree.getActionMap().put("left", new AbstractAction(){
f@0: 			   @Override
f@0: 			   public void actionPerformed(ActionEvent evt) {
f@0: 				   TreePath path = tree.getSelectionPath();
f@0: 				   DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode)path.getLastPathComponent();
f@0: 				   DefaultMutableTreeNode parent = (DefaultMutableTreeNode)treeNode.getParent();
f@0: 				   if(parent == null){/* root node */
f@0: 					   SoundFactory.getInstance().play(SoundEvent.ERROR);
f@0: 				   }
f@0: 				   else{
f@0: 					   TreePath newPath = new TreePath(((DefaultMutableTreeNode)parent).getPath());
f@0: 					   tree.setSelectionPath(newPath);
f@0: 					   tree.collapsePath(newPath);
f@0: 					   final String currentPathSpeech = currentPathSpeech(tree); 
f@0: 					   SoundFactory.getInstance().play(SoundEvent.TREE_NODE_COLLAPSE,new PlayerListener(){
f@0: 							@Override
f@0: 							public void playEnded() {
f@0: 								NarratorFactory.getInstance().speak(currentPathSpeech);
f@0: 							}
f@0: 					   });
f@0: 				   }
f@0: 			   }
f@0: 		   });
f@0: 		   
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE,0),"space");
f@0: 		   tree.getActionMap().put("space",new AbstractAction(){
f@0: 			   @Override
f@0: 			   public void actionPerformed(ActionEvent arg0) {
f@0: 				   space(tree);
f@0: 			   }
f@0: 		   });
f@0: 		   /* make the tree ignore the page up and page down keys */
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP,0),"none");
f@0: 		   tree.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_DOWN,0),"none");
f@0: 	}
f@0: 
f@0: 	protected String currentPathSpeech(JTree tree) {
f@0: 		TreePath path =	tree.getSelectionPath();
f@0: 		DefaultMutableTreeNode selectedPathTreeNode = (DefaultMutableTreeNode)path.getLastPathComponent();
f@0: 		return selectedPathTreeNode.toString();
f@0: 	}
f@0: 	
f@0: 	protected void space(JTree tree){
f@0: 		NarratorFactory.getInstance().speak(currentPathSpeech(tree));
f@0: 	}
f@0: 	
f@0: }