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/* |
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* JSampler - a java front-end for LinuxSampler |
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* |
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* Copyright (C) 2005-2007 Grigor Iliev <grigor@grigoriliev.com> |
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* |
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* This file is part of JSampler. |
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* |
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* JSampler is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 |
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* as published by the Free Software Foundation. |
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* |
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* JSampler is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with JSampler; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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package org.jsampler.view; |
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|
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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|
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import java.util.Vector; |
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|
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import javax.swing.SwingUtilities; |
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|
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import javax.swing.event.TreeModelEvent; |
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import javax.swing.event.TreeModelListener; |
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|
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import javax.swing.tree.TreeModel; |
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import javax.swing.tree.TreePath; |
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|
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import net.sf.juife.event.TaskEvent; |
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import net.sf.juife.event.TaskListener; |
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|
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import org.jsampler.CC; |
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|
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import org.jsampler.task.InstrumentsDb; |
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|
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import org.linuxsampler.lscp.DbDirectoryInfo; |
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import org.linuxsampler.lscp.DbInstrumentInfo; |
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|
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import org.linuxsampler.lscp.event.InstrumentsDbEvent; |
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import org.linuxsampler.lscp.event.InstrumentsDbListener; |
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|
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import static org.linuxsampler.lscp.Parser.*; |
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|
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|
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/** |
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* |
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* @author Grigor Iliev |
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*/ |
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public class InstrumentsDbTreeModel implements TreeModel { |
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private DbDirectoryTreeNode root = null; |
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private Vector<TreeModelListener> listeners = new Vector<TreeModelListener>(); |
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|
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/** |
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* Creates a new instance of <code>InstrumentsDbTreeModel</code>. |
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*/ |
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public |
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InstrumentsDbTreeModel() { this(null); } |
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|
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/** |
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* Creates a new instance of <code>InstrumentsDbTreeModel</code>. |
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* @param l A listener that will be notified when the root |
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* directory content is loaded. |
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*/ |
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public |
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InstrumentsDbTreeModel(final ActionListener l) { |
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// TODO: This shouldn't be done in the event-dispatcing thread |
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CC.getClient().addInstrumentsDbListener(getHandler()); |
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/////// |
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|
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initDb(l); |
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} |
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|
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/** |
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* Creates a new instance of <code>InstrumentsDbTreeModel</code>. |
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*/ |
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public |
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InstrumentsDbTreeModel(boolean dummy) { |
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if(dummy) return; |
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// TODO: This shouldn't be done in the event-dispatcing thread |
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CC.getClient().addInstrumentsDbListener(getHandler()); |
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/////// |
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|
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initDb(null); |
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} |
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|
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private void |
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initDb(final ActionListener l) { |
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final InstrumentsDb.GetDrectory gdi = new InstrumentsDb.GetDrectory("/"); |
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final InstrumentsDb.GetDrectories gd = new InstrumentsDb.GetDrectories("/"); |
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final InstrumentsDb.GetInstruments gi = new InstrumentsDb.GetInstruments("/"); |
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|
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gdi.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gdi.doneWithErrors()) return; |
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root = new DbDirectoryTreeNode(gdi.getResult()); |
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fireNodeStructureChanged(root); |
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|
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CC.getTaskQueue().add(gd); |
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CC.getTaskQueue().add(gi); |
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} |
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}); |
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|
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gd.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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root.setConnected(true); |
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if(gd.doneWithErrors()) return; |
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updateDirectoryContent(root, gd.getResult()); |
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|
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for(int i = 0; i < root.getChildCount(); i++) { |
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DbDirectoryTreeNode node = root.getChildAt(i); |
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node.setConnected(true); |
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updateDirectoryContent(node, "/" + toEscapedFileName(node)); |
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} |
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|
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if(l != null) l.actionPerformed(null); |
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} |
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}); |
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|
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gi.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gi.doneWithErrors()) return; |
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updateDirectoryContent(root, gi.getResult()); |
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} |
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}); |
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|
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CC.getTaskQueue().add(gdi); |
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} |
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|
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public void |
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treeWillExpand(TreePath path) { |
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DbDirectoryTreeNode node = (DbDirectoryTreeNode)path.getLastPathComponent(); |
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|
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if(!node.isConnected()) { |
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node.setConnected(true); |
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updateDirectoryContent(node, node.getInfo().getDirectoryPath()); |
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} |
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|
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for(int i = 0; i < node.getChildCount(); i++) { |
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DbDirectoryTreeNode child = node.getChildAt(i); |
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if(child.isConnected()) continue; |
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child.setConnected(true); |
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String pathName = getPathName(path.getPath()); |
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if(pathName.length() > 1) pathName += "/"; |
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updateDirectoryContent(child, pathName + toEscapedFileName(child)); |
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} |
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} |
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|
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// Tree model methods |
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public void |
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addTreeModelListener(TreeModelListener l) { |
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listeners.add(l); |
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} |
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|
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public void |
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removeTreeModelListener(TreeModelListener l) { |
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listeners.remove(l); |
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} |
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|
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public Object |
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getChild(Object parent, int index) { |
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return ((DbDirectoryTreeNode)parent).getChildAt(index); |
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} |
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|
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public int |
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getChildCount(Object parent) { |
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return ((DbDirectoryTreeNode)parent).getChildCount(); |
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} |
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|
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public Object |
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getRoot() { return root; } |
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|
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public int |
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getIndexOfChild(Object parent, Object child) { |
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if(parent == null || child == null) return -1; |
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return ((DbDirectoryTreeNode)parent).getIndex((DbDirectoryTreeNode)child); |
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} |
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|
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public boolean |
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isLeaf(Object node) { return ((DbDirectoryTreeNode)node).isLeaf(); } |
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|
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public void |
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valueForPathChanged(TreePath path, Object newValue) { |
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|
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} |
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/////// |
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|
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/** |
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* Schedules an update of the directory content for the specified directory node. |
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*/ |
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private void |
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updateDirectoryContent(final DbDirectoryTreeNode dirNode, String dirPath) { |
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updateDirectoryContent(dirNode, dirPath, null); |
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} |
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|
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/** |
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* Schedules an update of the directory content for the specified directory node. |
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* @param l A listener that will be notified when the subdirectory list is updated. |
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*/ |
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private void |
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updateDirectoryContent ( |
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final DbDirectoryTreeNode dirNode, String dirPath, final ActionListener l |
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) { |
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final InstrumentsDb.GetDrectories gd = new InstrumentsDb.GetDrectories(dirPath); |
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|
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gd.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gd.doneWithErrors()) { |
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if(l != null) l.actionPerformed(null); |
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return; |
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} |
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updateDirectoryContent(dirNode, gd.getResult()); |
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if(l != null) l.actionPerformed(null); |
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} |
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}); |
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CC.scheduleTask(gd); |
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|
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final InstrumentsDb.GetInstruments gi = new InstrumentsDb.GetInstruments(dirPath); |
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|
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gi.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gi.doneWithErrors()) return; |
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updateDirectoryContent(dirNode, gi.getResult()); |
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} |
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}); |
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CC.scheduleTask(gi); |
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} |
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|
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private void |
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updateDirectoryContent(DbDirectoryTreeNode parent, DbDirectoryInfo[] children) { |
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boolean found = false; |
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Vector<DbDirectoryTreeNode> removedNodes = new Vector<DbDirectoryTreeNode>(); |
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for(int i = 0; i < parent.getChildCount(); i++) { |
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for(int j = 0; j < children.length; j++) { |
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if(children[j] == null) continue; |
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if(children[j].getName().equals(parent.getChildAt(i).toString())) { |
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children[j] = null; |
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found = true; |
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break; |
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} |
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} |
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if(!found) removedNodes.add(parent.getChildAt(i)); |
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found = false; |
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} |
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|
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for(DbDirectoryTreeNode node : removedNodes) { |
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int i = parent.getIndex(node); |
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parent.removeDirectory(i); |
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fireNodeRemoved(parent, node, i); |
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} |
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|
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for(DbDirectoryInfo info : children) { |
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if(info == null) continue; |
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DbDirectoryTreeNode node = new DbDirectoryTreeNode(info); |
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parent.addDirectory(node); |
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fireNodeInserted(node, parent.getIndex(node)); |
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if(parent.getParent() == null) { |
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node.setConnected(true); |
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updateDirectoryContent(node, info.getDirectoryPath()); |
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} else if(parent.isConnected()) { |
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updateDirectoryContent(node, info.getDirectoryPath()); |
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} |
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} |
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} |
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|
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private void |
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updateDirectoryContent(DbDirectoryTreeNode parent, DbInstrumentInfo[] children) { |
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boolean found = false; |
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Vector<DbInstrumentInfo> removedNodes = new Vector<DbInstrumentInfo>(); |
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for(int i = 0; i < parent.getInstrumentCount(); i++) { |
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String name = parent.getInstrumentAt(i).getName(); |
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|
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for(int j = 0; j < children.length; j++) { |
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if(children[j] == null) continue; |
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if(children[j].getName().equals(name)) { |
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children[j] = null; |
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found = true; |
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break; |
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} |
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} |
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if(!found) removedNodes.add(parent.getInstrumentAt(i)); |
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found = false; |
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} |
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|
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for(DbInstrumentInfo info : removedNodes) { |
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int i = parent.getInstrumentIndex(info); |
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parent.removeInstrument(i); |
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} |
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|
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for(DbInstrumentInfo info : children) { |
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if(info == null) continue; |
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parent.addInstrument(info); |
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} |
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} |
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|
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/** |
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* Schedules a task for refreshing the directory content of the specified directory. |
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* Note that the specified directory is expected to be connected. |
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* @param dir The absolute path name of the directory to refresh. |
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*/ |
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public void |
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refreshDirectoryContent(String dir) { |
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final DbDirectoryTreeNode node = getNodeByPath(dir); |
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if(node == null) return; |
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|
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node.removeAllDirectories(); |
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fireNodeStructureChanged(node); |
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node.removeAllInstruments(); |
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|
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final InstrumentsDb.GetDrectories gd = new InstrumentsDb.GetDrectories(dir); |
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|
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gd.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gd.doneWithErrors()) return; |
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|
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for(DbDirectoryInfo info : gd.getResult()) { |
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DbDirectoryTreeNode n = new DbDirectoryTreeNode(info); |
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node.addDirectory(n); |
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fireNodeInserted(n, node.getIndex(n)); |
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n.setConnected(true); |
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updateDirectoryContent(n, n.getInfo().getDirectoryPath()); |
336 |
} |
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} |
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}); |
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CC.scheduleTask(gd); |
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|
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final InstrumentsDb.GetInstruments gi = new InstrumentsDb.GetInstruments(dir); |
342 |
|
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gi.addTaskListener(new TaskListener() { |
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public void |
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taskPerformed(TaskEvent e) { |
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if(gi.doneWithErrors()) return; |
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|
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for(DbInstrumentInfo info : gi.getResult()) { |
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node.addInstrument(info); |
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} |
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} |
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}); |
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CC.scheduleTask(gi); |
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} |
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|
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protected Object[] |
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getPathToRoot(DbDirectoryTreeNode node) { |
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Vector v = new Vector(); |
359 |
|
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while(node != null) { |
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v.insertElementAt(node, 0); |
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if(node == getRoot()) break; |
363 |
node = node.getParent(); |
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} |
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|
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return v.toArray(new Object[v.size()]); |
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} |
368 |
|
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protected String |
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getPathName(Object[] objs) { |
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if(objs.length == 1) return "/"; |
372 |
|
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StringBuffer sb = new StringBuffer(); |
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for(int i = 1; i < objs.length; i++) { |
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sb.append('/').append(toEscapedFileName(objs[i])); |
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} |
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|
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return sb.toString(); |
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} |
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|
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private void |
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fireNodeInserted(DbDirectoryTreeNode node, int index) { |
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Object[] path = getPathToRoot(node.getParent()); |
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int[] idxs = { index }; |
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Object[] objs = { node }; |
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TreeModelEvent e = new TreeModelEvent(this, path, idxs, objs); |
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for(TreeModelListener l : listeners) { |
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l.treeNodesInserted(e); |
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} |
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} |
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|
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private void |
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fireNodeChanged(DbDirectoryTreeNode node, int index) { |
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Object[] path = getPathToRoot(node.getParent()); |
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int[] idxs = { index }; |
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Object[] objs = { node }; |
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TreeModelEvent e = new TreeModelEvent(this, path, idxs, objs); |
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for(TreeModelListener l : listeners) { |
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l.treeNodesChanged(e); |
400 |
} |
401 |
} |
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|
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private void |
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fireNodeRemoved(DbDirectoryTreeNode parent, DbDirectoryTreeNode node, int index) { |
405 |
Object[] path = getPathToRoot(parent); |
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int[] idxs = { index }; |
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Object[] objs = { node }; |
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TreeModelEvent e = new TreeModelEvent(this, path, idxs, objs); |
409 |
for(int i = listeners.size() - 1; i >=0; i--) { |
410 |
listeners.get(i).treeNodesRemoved(e); |
411 |
} |
412 |
} |
413 |
|
414 |
private void |
415 |
fireNodeStructureChanged(DbDirectoryTreeNode node) { |
416 |
Object[] path = getPathToRoot(node); |
417 |
Object[] objs = { node }; |
418 |
TreeModelEvent e = new TreeModelEvent(this, path); |
419 |
for(TreeModelListener l : listeners) { |
420 |
l.treeStructureChanged(e); |
421 |
} |
422 |
} |
423 |
|
424 |
public DbDirectoryTreeNode |
425 |
getNodeByPath(String path) { |
426 |
String[] dirs = getDirectoryList(path); |
427 |
if(dirs == null) return null; |
428 |
if(dirs.length == 1) return root; |
429 |
if(root == null) return null; |
430 |
DbDirectoryTreeNode node = root; |
431 |
boolean found = false; |
432 |
for(int i = 1; i < dirs.length; i++) { |
433 |
for(int k = 0; k < node.getChildCount(); k++) { |
434 |
String s = toNonEscapedFileName(dirs[i]); |
435 |
if(s.equals(node.getChildAt(k).toString())) { |
436 |
node = node.getChildAt(k); |
437 |
found = true; |
438 |
break; |
439 |
} |
440 |
} |
441 |
|
442 |
if(!found) return null; |
443 |
found = false; |
444 |
} |
445 |
|
446 |
return node; |
447 |
} |
448 |
|
449 |
public String |
450 |
getPathByNode(DbDirectoryTreeNode node) { |
451 |
if(node == null) return null; |
452 |
return getPathName(getPathToRoot(node)); |
453 |
} |
454 |
|
455 |
/** |
456 |
* @param l A listener which will be notified when the operation is completed. |
457 |
*/ |
458 |
public void |
459 |
loadPath(String path, final ActionListener l) { |
460 |
// TODO: This method is lazily implemented. Should be optimized. |
461 |
final String[] dirs = getDirectoryList(path); |
462 |
if(dirs == null) { |
463 |
l.actionPerformed(null); |
464 |
return; |
465 |
} |
466 |
|
467 |
final ActionListener listener = new ActionListener() { |
468 |
public void |
469 |
actionPerformed(ActionEvent e) { |
470 |
String s = ""; |
471 |
DbDirectoryTreeNode node = null; |
472 |
for(int i = 0; i < dirs.length; i++) { |
473 |
if(i > 1) s += "/" + dirs[i]; |
474 |
else s += dirs[i]; |
475 |
node = getNodeByPath(s); |
476 |
if(node == null) { |
477 |
if(l != null) l.actionPerformed(null); |
478 |
return; |
479 |
} |
480 |
|
481 |
if(!node.isConnected()) { |
482 |
node.setConnected(true); |
483 |
updateDirectoryContent(node, s, this); |
484 |
return; |
485 |
} |
486 |
} |
487 |
|
488 |
if(l != null) l.actionPerformed(null); |
489 |
} |
490 |
}; |
491 |
|
492 |
listener.actionPerformed(null); |
493 |
} |
494 |
|
495 |
/** Resets this model. */ |
496 |
public void |
497 |
reset() { |
498 |
DbDirectoryTreeNode oldRoot = root; |
499 |
root = null; |
500 |
TreeModelEvent e = new TreeModelEvent(this, (TreePath)null); |
501 |
for(TreeModelListener l : listeners) { |
502 |
l.treeStructureChanged(e); |
503 |
} |
504 |
} |
505 |
|
506 |
private final EventHandler eventHandler = new EventHandler(); |
507 |
|
508 |
private EventHandler |
509 |
getHandler() { return eventHandler; } |
510 |
|
511 |
private class EventHandler implements InstrumentsDbListener { |
512 |
/** |
513 |
* Invoked when the number of instrument |
514 |
* directories in a specific directory has changed. |
515 |
*/ |
516 |
public void |
517 |
directoryCountChanged(final InstrumentsDbEvent e) { |
518 |
SwingUtilities.invokeLater(new Runnable() { |
519 |
public void |
520 |
run() { updateDirectoryCount(e); } |
521 |
}); |
522 |
} |
523 |
|
524 |
private void |
525 |
updateDirectoryCount(InstrumentsDbEvent e) { |
526 |
if(e.getPathName().equals("/") && root == null) { |
527 |
/* |
528 |
* If the directory tree failed to load due to a database |
529 |
* corruption it may work now if the db has been formatted |
530 |
*/ |
531 |
initDb(null); |
532 |
} |
533 |
|
534 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
535 |
if(node == null) return; |
536 |
if(!node.isConnected()) return; |
537 |
|
538 |
updateDirectoryContent(node, e.getPathName()); |
539 |
} |
540 |
|
541 |
/** |
542 |
* Invoked when the settings of an instrument directory are changed. |
543 |
*/ |
544 |
public void |
545 |
directoryInfoChanged(final InstrumentsDbEvent e) { |
546 |
SwingUtilities.invokeLater(new Runnable() { |
547 |
public void |
548 |
run() { updateDirectoryInfo(e); } |
549 |
}); |
550 |
} |
551 |
|
552 |
private void |
553 |
updateDirectoryInfo(InstrumentsDbEvent e) { |
554 |
final DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
555 |
if(node == null) return; |
556 |
|
557 |
final InstrumentsDb.GetDrectory t = |
558 |
new InstrumentsDb.GetDrectory(e.getPathName()); |
559 |
|
560 |
t.addTaskListener(new TaskListener() { |
561 |
public void |
562 |
taskPerformed(TaskEvent e) { |
563 |
if(t.doneWithErrors()) return; |
564 |
if(node.getParent() != null) { |
565 |
node.getParent().updateDirectory(t.getResult()); |
566 |
fireNodeChanged(node, node.getParent().getIndex(node)); |
567 |
} |
568 |
} |
569 |
}); |
570 |
|
571 |
CC.getTaskQueue().add(t); |
572 |
} |
573 |
|
574 |
/** |
575 |
* Invoked when an instrument directory is renamed. |
576 |
*/ |
577 |
public void |
578 |
directoryNameChanged(final InstrumentsDbEvent e) { |
579 |
SwingUtilities.invokeLater(new Runnable() { |
580 |
public void |
581 |
run() { directoryRenamed(e); } |
582 |
}); |
583 |
} |
584 |
|
585 |
private void |
586 |
directoryRenamed(InstrumentsDbEvent e) { |
587 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
588 |
if(node == null) { |
589 |
// If the directory is renamed by this frontend the |
590 |
// directory should already be with the new name |
591 |
String s = getParentDirectory(e.getPathName()); |
592 |
if(s.length() == 1) s += toEscapedFileName(e.getNewName()); |
593 |
else s += "/" + toEscapedFileName(e.getNewName()); |
594 |
node = getNodeByPath(s); |
595 |
} |
596 |
if(node == null || node.getParent() == null) { |
597 |
CC.getLogger().warning("Invalid path: " + e.getPathName()); |
598 |
return; |
599 |
} |
600 |
|
601 |
node.setName(e.getNewName()); |
602 |
DbDirectoryTreeNode parent = node.getParent(); |
603 |
|
604 |
int i = parent.getIndex(node); |
605 |
parent.removeDirectory(i); |
606 |
fireNodeRemoved(parent, node, i); |
607 |
|
608 |
parent.addDirectory(node); |
609 |
fireNodeInserted(node, parent.getIndex(node)); |
610 |
} |
611 |
|
612 |
/** |
613 |
* Invoked when the number of instruments |
614 |
* in a specific directory has changed. |
615 |
*/ |
616 |
public void |
617 |
instrumentCountChanged(final InstrumentsDbEvent e) { |
618 |
SwingUtilities.invokeLater(new Runnable() { |
619 |
public void |
620 |
run() { |
621 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
622 |
if(node == null) { |
623 |
return; |
624 |
} |
625 |
if(!node.isConnected()) { |
626 |
return; |
627 |
} |
628 |
|
629 |
updateDirectoryContent(node, e.getPathName()); |
630 |
} |
631 |
}); |
632 |
} |
633 |
|
634 |
/** |
635 |
* Invoked when the settings of an instrument are changed. |
636 |
*/ |
637 |
public void |
638 |
instrumentInfoChanged(final InstrumentsDbEvent e) { |
639 |
SwingUtilities.invokeLater(new Runnable() { |
640 |
public void |
641 |
run() { updateInstrumentInfo(e); } |
642 |
}); |
643 |
} |
644 |
|
645 |
/** |
646 |
* Invoked when an instrument is renamed. |
647 |
*/ |
648 |
public void |
649 |
instrumentNameChanged(final InstrumentsDbEvent e) { |
650 |
SwingUtilities.invokeLater(new Runnable() { |
651 |
public void |
652 |
run() { instrumentRenamed(e); } |
653 |
}); |
654 |
} |
655 |
|
656 |
private void |
657 |
updateInstrumentInfo(InstrumentsDbEvent e) { |
658 |
String dir = getParentDirectory(e.getPathName()); |
659 |
final DbDirectoryTreeNode node = getNodeByPath(dir); |
660 |
if(node == null) return; |
661 |
if(!node.isConnected()) return; |
662 |
|
663 |
final InstrumentsDb.GetInstrument t = |
664 |
new InstrumentsDb.GetInstrument(e.getPathName()); |
665 |
|
666 |
t.addTaskListener(new TaskListener() { |
667 |
public void |
668 |
taskPerformed(TaskEvent e) { |
669 |
if(t.doneWithErrors()) return; |
670 |
node.updateInstrument(t.getResult()); |
671 |
} |
672 |
}); |
673 |
|
674 |
CC.getTaskQueue().add(t); |
675 |
} |
676 |
|
677 |
private void |
678 |
instrumentRenamed(InstrumentsDbEvent e) { |
679 |
String dir = getParentDirectory(e.getPathName()); |
680 |
DbDirectoryTreeNode node = getNodeByPath(dir); |
681 |
if(node == null) return; |
682 |
|
683 |
String instr = getFileName(e.getPathName()); |
684 |
if(instr == null) return; |
685 |
|
686 |
DbInstrumentInfo info = node.getInstrument(toNonEscapedFileName(instr)); |
687 |
|
688 |
if(info == null) { |
689 |
// If the instrument is renamed by this frontend the |
690 |
// instrument should already be with the new name |
691 |
info = node.getInstrument(e.getNewName()); |
692 |
} |
693 |
if(info == null) { |
694 |
CC.getLogger().warning("Invalid path: " + e.getPathName()); |
695 |
return; |
696 |
} |
697 |
|
698 |
info.setName(e.getNewName()); |
699 |
node.removeInstrument(node.getInstrumentIndex(info)); |
700 |
node.addInstrument(info); |
701 |
} |
702 |
|
703 |
/** Invoked when the status of particular job has changed. */ |
704 |
public void |
705 |
jobStatusChanged(InstrumentsDbEvent e) { } |
706 |
} |
707 |
} |