/*
* (c) Copyright 2010-2011 AgileBirds
*
* This file is part of OpenFlexo.
*
* OpenFlexo 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 3 of the License, or
* (at your option) any later version.
*
* OpenFlexo 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 OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
*
*/
package cb.util;
import java.util.Iterator;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.ToolTipManager;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;
import cb.petal.List;
import cb.petal.PetalFile;
import cb.petal.PetalNode;
import cb.petal.PetalObject;
import cb.petal.StringLiteral;
import cb.petal.Tagged;
import cb.petal.Value;
/**
* Display petal file in JTree. The tooltip text displays the property name, if the currently selected node is a child of a PetalObject.
*
* @version $Id: PetalTree.java,v 1.3 2011/09/12 11:47:29 gpolet Exp $
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
public class PetalTree extends JTree {
protected static final ImageIcon PLUS_ICON = getIcon("PLUS.GIF");
protected static final ImageIcon MINUS_ICON = getIcon("MINUS.GIF");
protected static final ImageIcon OPENED_ICON = getIcon("OPENED.GIF");
protected static final ImageIcon CLOSED_ICON = getIcon("CLOSED.GIF");
protected static final ImageIcon LEAF_ICON = getIcon("LEAF.GIF");
public PetalTree(PetalFile tree) {
super(tree);
getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
ToolTipManager.sharedInstance().registerComponent(this);
putClientProperty("JTree.lineStyle", "Angled");
setShowsRootHandles(false);
setUI(new MyTreeUI());
setCellRenderer(new MyTreeCellRenderer());
}
private static ImageIcon getIcon(String name) {
try {
return new ImageIcon(PetalTree.class.getResource("/images/" + name));
} catch (Exception e) {
System.err.println("Couldn't find image: " + name);
}
return new ImageIcon();
}
private static class MyTreeUI extends javax.swing.plaf.metal.MetalTreeUI {
@Override
public javax.swing.Icon getExpandedIcon() {
return MINUS_ICON;
}
@Override
public javax.swing.Icon getCollapsedIcon() {
return PLUS_ICON;
}
}
private static class MyTreeCellRenderer extends DefaultTreeCellRenderer {
@Override
public java.awt.Component getTreeCellRendererComponent(JTree tree, java.lang.Object value, boolean sel, boolean expanded,
boolean leaf, int row, boolean hasFocus) {
if (value instanceof PetalFile) {
value = "Root";
} else if (value instanceof PetalObject) {
PetalObject obj = (PetalObject) value;
StringBuffer buf = new StringBuffer(obj.getName());
for (Iterator i = obj.getParameterList().iterator(); i.hasNext();) {
buf.append(" \"" + i.next() + "\"");
}
if (obj instanceof Tagged) {
buf.append(" " + ((Tagged) obj).getTag());
}
value = buf;
} else if (value instanceof List) {
value = "list " + ((List) value).getName();
} else if (value instanceof StringLiteral) {
value = '"' + (String) ((StringLiteral) value).getLiteralValue() + '"';
} else if (value instanceof Value) {
value = ((Value) value).getLiteralValue();
}
super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
if (leaf) {
setIcon(LEAF_ICON);
} else {
if (expanded) {
setIcon(OPENED_ICON);
} else {
setIcon(CLOSED_ICON);
}
}
return this;
}
}
@Override
public String getToolTipText(java.awt.event.MouseEvent e) {
if (e != null) {
// int row = getRowForLocation(e.getX(), e.getY());
TreePath path = getPathForLocation(e.getX(), e.getY());
if (path != null) {
PetalNode node = (PetalNode) path.getLastPathComponent();
path = path.getParentPath();
if (path != null) {
PetalNode parent = (PetalNode) path.getLastPathComponent();
if (parent instanceof PetalObject) {
return ((PetalObject) parent).getPropertyName(node);
}
}
}
}
return null;
}
}