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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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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; |
316 |
|
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for(DbDirectoryInfo info : gd.getResult()) { |
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DbDirectoryTreeNode n = new DbDirectoryTreeNode(info); |
319 |
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()); |
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} |
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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); |
329 |
|
330 |
gi.addTaskListener(new TaskListener() { |
331 |
public void |
332 |
taskPerformed(TaskEvent e) { |
333 |
if(gi.doneWithErrors()) return; |
334 |
|
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for(DbInstrumentInfo info : gi.getResult()) { |
336 |
node.addInstrument(info); |
337 |
} |
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} |
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}); |
340 |
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(); |
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|
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while(node != null) { |
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v.insertElementAt(node, 0); |
349 |
if(node == getRoot()) break; |
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node = node.getParent(); |
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} |
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|
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return v.toArray(new Object[v.size()]); |
354 |
} |
355 |
|
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protected String |
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getPathName(Object[] objs) { |
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if(objs.length == 1) return "/"; |
359 |
|
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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(); |
366 |
} |
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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); |
374 |
for(TreeModelListener l : listeners) { |
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l.treeNodesInserted(e); |
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} |
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} |
378 |
|
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private void |
380 |
fireNodeChanged(DbDirectoryTreeNode node, int index) { |
381 |
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); |
387 |
} |
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} |
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|
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private void |
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fireNodeRemoved(DbDirectoryTreeNode parent, DbDirectoryTreeNode node, int index) { |
392 |
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); |
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for(int i = listeners.size() - 1; i >=0; i--) { |
397 |
listeners.get(i).treeNodesRemoved(e); |
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} |
399 |
} |
400 |
|
401 |
private void |
402 |
fireNodeStructureChanged(DbDirectoryTreeNode node) { |
403 |
Object[] path = getPathToRoot(node); |
404 |
Object[] objs = { node }; |
405 |
TreeModelEvent e = new TreeModelEvent(this, path); |
406 |
for(TreeModelListener l : listeners) { |
407 |
l.treeStructureChanged(e); |
408 |
} |
409 |
} |
410 |
|
411 |
public DbDirectoryTreeNode |
412 |
getNodeByPath(String path) { |
413 |
String[] dirs = getDirectoryList(path); |
414 |
if(dirs == null) return null; |
415 |
if(dirs.length == 1) return root; |
416 |
if(root == null) return null; |
417 |
DbDirectoryTreeNode node = root; |
418 |
boolean found = false; |
419 |
for(int i = 1; i < dirs.length; i++) { |
420 |
for(int k = 0; k < node.getChildCount(); k++) { |
421 |
String s = toNonEscapedFileName(dirs[i]); |
422 |
if(s.equals(node.getChildAt(k).toString())) { |
423 |
node = node.getChildAt(k); |
424 |
found = true; |
425 |
break; |
426 |
} |
427 |
} |
428 |
|
429 |
if(!found) return null; |
430 |
found = false; |
431 |
} |
432 |
|
433 |
return node; |
434 |
} |
435 |
|
436 |
public String |
437 |
getPathByNode(DbDirectoryTreeNode node) { |
438 |
if(node == null) return null; |
439 |
return getPathName(getPathToRoot(node)); |
440 |
} |
441 |
|
442 |
/** |
443 |
* @param l A listener which will be notified when the operation is completed. |
444 |
*/ |
445 |
public void |
446 |
loadPath(String path, final ActionListener l) { |
447 |
// TODO: This method is lazily implemented. Should be optimized. |
448 |
final String[] dirs = getDirectoryList(path); |
449 |
if(dirs == null) { |
450 |
l.actionPerformed(null); |
451 |
return; |
452 |
} |
453 |
|
454 |
final ActionListener listener = new ActionListener() { |
455 |
public void |
456 |
actionPerformed(ActionEvent e) { |
457 |
String s = ""; |
458 |
DbDirectoryTreeNode node = null; |
459 |
for(int i = 0; i < dirs.length; i++) { |
460 |
if(i > 1) s += "/" + dirs[i]; |
461 |
else s += dirs[i]; |
462 |
node = getNodeByPath(s); |
463 |
if(node == null) { |
464 |
if(l != null) l.actionPerformed(null); |
465 |
return; |
466 |
} |
467 |
|
468 |
if(!node.isConnected()) { |
469 |
node.setConnected(true); |
470 |
updateDirectoryContent(node, s, this); |
471 |
return; |
472 |
} |
473 |
} |
474 |
|
475 |
if(l != null) l.actionPerformed(null); |
476 |
} |
477 |
}; |
478 |
|
479 |
listener.actionPerformed(null); |
480 |
} |
481 |
|
482 |
/** Resets this model. */ |
483 |
public void |
484 |
reset() { |
485 |
DbDirectoryTreeNode oldRoot = root; |
486 |
root = null; |
487 |
TreeModelEvent e = new TreeModelEvent(this, (TreePath)null); |
488 |
for(TreeModelListener l : listeners) { |
489 |
l.treeStructureChanged(e); |
490 |
} |
491 |
} |
492 |
|
493 |
private final EventHandler eventHandler = new EventHandler(); |
494 |
|
495 |
private EventHandler |
496 |
getHandler() { return eventHandler; } |
497 |
|
498 |
private class EventHandler implements InstrumentsDbListener { |
499 |
/** |
500 |
* Invoked when the number of instrument |
501 |
* directories in a specific directory has changed. |
502 |
*/ |
503 |
public void |
504 |
directoryCountChanged(final InstrumentsDbEvent e) { |
505 |
SwingUtilities.invokeLater(new Runnable() { |
506 |
public void |
507 |
run() { updateDirectoryCount(e); } |
508 |
}); |
509 |
} |
510 |
|
511 |
private void |
512 |
updateDirectoryCount(InstrumentsDbEvent e) { |
513 |
if(e.getPathName().equals("/") && root == null) { |
514 |
/* |
515 |
* If the directory tree failed to load due to a database |
516 |
* corruption it may work now if the db has been formatted |
517 |
*/ |
518 |
initDb(null); |
519 |
} |
520 |
|
521 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
522 |
if(node == null) return; |
523 |
if(!node.isConnected()) return; |
524 |
|
525 |
updateDirectoryContent(node, e.getPathName()); |
526 |
} |
527 |
|
528 |
/** |
529 |
* Invoked when the settings of an instrument directory are changed. |
530 |
*/ |
531 |
public void |
532 |
directoryInfoChanged(final InstrumentsDbEvent e) { |
533 |
SwingUtilities.invokeLater(new Runnable() { |
534 |
public void |
535 |
run() { updateDirectoryInfo(e); } |
536 |
}); |
537 |
} |
538 |
|
539 |
private void |
540 |
updateDirectoryInfo(InstrumentsDbEvent e) { |
541 |
final DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
542 |
if(node == null) return; |
543 |
|
544 |
final InstrumentsDb.GetDrectory t = |
545 |
new InstrumentsDb.GetDrectory(e.getPathName()); |
546 |
|
547 |
t.addTaskListener(new TaskListener() { |
548 |
public void |
549 |
taskPerformed(TaskEvent e) { |
550 |
if(t.doneWithErrors()) return; |
551 |
if(node.getParent() != null) { |
552 |
node.getParent().updateDirectory(t.getResult()); |
553 |
fireNodeChanged(node, node.getParent().getIndex(node)); |
554 |
} |
555 |
} |
556 |
}); |
557 |
|
558 |
CC.getTaskQueue().add(t); |
559 |
} |
560 |
|
561 |
/** |
562 |
* Invoked when an instrument directory is renamed. |
563 |
*/ |
564 |
public void |
565 |
directoryNameChanged(final InstrumentsDbEvent e) { |
566 |
SwingUtilities.invokeLater(new Runnable() { |
567 |
public void |
568 |
run() { directoryRenamed(e); } |
569 |
}); |
570 |
} |
571 |
|
572 |
private void |
573 |
directoryRenamed(InstrumentsDbEvent e) { |
574 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
575 |
if(node == null) { |
576 |
// If the directory is renamed by this frontend the |
577 |
// directory should already be with the new name |
578 |
String s = getParentDirectory(e.getPathName()); |
579 |
if(s.length() == 1) s += toEscapedFileName(e.getNewName()); |
580 |
else s += "/" + toEscapedFileName(e.getNewName()); |
581 |
node = getNodeByPath(s); |
582 |
} |
583 |
if(node == null || node.getParent() == null) { |
584 |
CC.getLogger().warning("Invalid path: " + e.getPathName()); |
585 |
return; |
586 |
} |
587 |
|
588 |
node.setName(e.getNewName()); |
589 |
DbDirectoryTreeNode parent = node.getParent(); |
590 |
|
591 |
int i = parent.getIndex(node); |
592 |
parent.removeDirectory(i); |
593 |
fireNodeRemoved(parent, node, i); |
594 |
|
595 |
parent.addDirectory(node); |
596 |
fireNodeInserted(node, parent.getIndex(node)); |
597 |
} |
598 |
|
599 |
/** |
600 |
* Invoked when the number of instruments |
601 |
* in a specific directory has changed. |
602 |
*/ |
603 |
public void |
604 |
instrumentCountChanged(final InstrumentsDbEvent e) { |
605 |
SwingUtilities.invokeLater(new Runnable() { |
606 |
public void |
607 |
run() { |
608 |
DbDirectoryTreeNode node = getNodeByPath(e.getPathName()); |
609 |
if(node == null) { |
610 |
return; |
611 |
} |
612 |
if(!node.isConnected()) { |
613 |
return; |
614 |
} |
615 |
|
616 |
updateDirectoryContent(node, e.getPathName()); |
617 |
} |
618 |
}); |
619 |
} |
620 |
|
621 |
/** |
622 |
* Invoked when the settings of an instrument are changed. |
623 |
*/ |
624 |
public void |
625 |
instrumentInfoChanged(final InstrumentsDbEvent e) { |
626 |
SwingUtilities.invokeLater(new Runnable() { |
627 |
public void |
628 |
run() { updateInstrumentInfo(e); } |
629 |
}); |
630 |
} |
631 |
|
632 |
/** |
633 |
* Invoked when an instrument is renamed. |
634 |
*/ |
635 |
public void |
636 |
instrumentNameChanged(final InstrumentsDbEvent e) { |
637 |
SwingUtilities.invokeLater(new Runnable() { |
638 |
public void |
639 |
run() { instrumentRenamed(e); } |
640 |
}); |
641 |
} |
642 |
|
643 |
private void |
644 |
updateInstrumentInfo(InstrumentsDbEvent e) { |
645 |
String dir = getParentDirectory(e.getPathName()); |
646 |
final DbDirectoryTreeNode node = getNodeByPath(dir); |
647 |
if(node == null) return; |
648 |
if(!node.isConnected()) return; |
649 |
|
650 |
final InstrumentsDb.GetInstrument t = |
651 |
new InstrumentsDb.GetInstrument(e.getPathName()); |
652 |
|
653 |
t.addTaskListener(new TaskListener() { |
654 |
public void |
655 |
taskPerformed(TaskEvent e) { |
656 |
if(t.doneWithErrors()) return; |
657 |
node.updateInstrument(t.getResult()); |
658 |
} |
659 |
}); |
660 |
|
661 |
CC.getTaskQueue().add(t); |
662 |
} |
663 |
|
664 |
private void |
665 |
instrumentRenamed(InstrumentsDbEvent e) { |
666 |
String dir = getParentDirectory(e.getPathName()); |
667 |
DbDirectoryTreeNode node = getNodeByPath(dir); |
668 |
if(node == null) return; |
669 |
|
670 |
String instr = getFileName(e.getPathName()); |
671 |
if(instr == null) return; |
672 |
|
673 |
DbInstrumentInfo info = node.getInstrument(toNonEscapedFileName(instr)); |
674 |
|
675 |
if(info == null) { |
676 |
// If the instrument is renamed by this frontend the |
677 |
// instrument should already be with the new name |
678 |
info = node.getInstrument(e.getNewName()); |
679 |
} |
680 |
if(info == null) { |
681 |
CC.getLogger().warning("Invalid path: " + e.getPathName()); |
682 |
return; |
683 |
} |
684 |
|
685 |
info.setName(e.getNewName()); |
686 |
node.removeInstrument(node.getInstrumentIndex(info)); |
687 |
node.addInstrument(info); |
688 |
} |
689 |
|
690 |
/** Invoked when the status of particular job has changed. */ |
691 |
public void |
692 |
jobStatusChanged(InstrumentsDbEvent e) { } |
693 |
} |
694 |
} |