/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.processeditor;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.JTree;
import javax.swing.ToolTipManager;
import javax.swing.tree.TreePath;
import com.rapidminer.gui.processeditor.actions.ClearFilterAction;
import com.rapidminer.gui.tools.ExtendedJScrollPane;
import com.rapidminer.gui.tools.ExtendedJToolBar;
import com.rapidminer.tools.GroupTree;
import com.rapidminer.tools.OperatorService;
/**
* This tree displays all groups and can be used to change the selected operators.
*
* @author Ingo Mierswa
* @version $Id: NewOperatorGroupTree.java,v 1.9 2008/05/09 19:23:16 ingomierswa Exp $
*/
public class NewOperatorGroupTree extends JPanel {
private static final long serialVersionUID = 133086849304885475L;
private static final String DEFAULT_FILTER_TEXT = "[Filter]";
private JTextField filterField = new JTextField(12);
private transient NewOperatorGroupTreeModel model = new NewOperatorGroupTreeModel(OperatorService.getGroups());
private JTree operatorGroupTree = new JTree(model);
private NewOperatorEditor editor;
public NewOperatorGroupTree(NewOperatorEditor editor) {
this.editor = editor;
setLayout(new BorderLayout());
operatorGroupTree.setShowsRootHandles(true);
ToolTipManager.sharedInstance().registerComponent(operatorGroupTree);
operatorGroupTree.setToggleClickCount(5);
operatorGroupTree.setCellRenderer(new NewOperatorGroupTreeRenderer());
operatorGroupTree.expandRow(0);
add(new ExtendedJScrollPane(operatorGroupTree), BorderLayout.CENTER);
filterField.setToolTipText("Insert a search string in order to filter the new operator tree above.");
filterField.setForeground(Color.LIGHT_GRAY);
filterField.setText(DEFAULT_FILTER_TEXT);
filterField.addKeyListener(new KeyListener() {
public void keyPressed(KeyEvent e) {
filterField.setForeground(Color.BLACK);
}
public void keyTyped(KeyEvent e) {
//updateFilter(e);
}
public void keyReleased(KeyEvent e) {
updateFilter(e);
}
});
filterField.addMouseListener(new MouseAdapter() {
public void mouseReleased(MouseEvent e) {
super.mouseReleased(e);
filterField.selectAll();
}
});
filterField.addFocusListener(new FocusListener() {
public void focusGained(FocusEvent e) {}
public void focusLost(FocusEvent e) {
updateFilter(null);
}
});
JToolBar clearBar = new ExtendedJToolBar();
clearBar.add(filterField);
clearBar.add(new ClearFilterAction(this));
clearBar.setBorder(null);
add(clearBar, BorderLayout.SOUTH);
}
public void clearFilter() {
filterField.setForeground(Color.LIGHT_GRAY);
filterField.setText(DEFAULT_FILTER_TEXT);
updateFilter(null);
}
private void updateFilter(KeyEvent e) {
String filterText = filterField.getText();
if ((filterText == null) || (filterText.trim().length() == 0)) {
if ((e == null) ||
((e.getKeyCode() != KeyEvent.VK_BACK_SPACE) &&
(e.getKeyCode() != KeyEvent.VK_DELETE) &&
(e.getKeyCode() != KeyEvent.VK_SHIFT) &&
(e.getKeyCode() != KeyEvent.VK_ALT) &&
(e.getKeyCode() != KeyEvent.VK_ALT_GRAPH) &&
(e.getKeyCode() != KeyEvent.VK_CONTROL) &&
(e.getKeyCode() != KeyEvent.VK_META) &&
(!e.isActionKey()))) {
filterField.setForeground(Color.LIGHT_GRAY);
filterField.setText(DEFAULT_FILTER_TEXT);
}
}
if (DEFAULT_FILTER_TEXT.equals(filterText))
filterText = null;
model.applyFilter(filterText);
GroupTree root = (GroupTree)this.operatorGroupTree.getModel().getRoot();
TreePath path = new TreePath(root);
showNodes(root, path);
}
private void showNodes(GroupTree tree, TreePath path) {
if (tree.getSubGroups().size() == 0) {
int row = this.operatorGroupTree.getRowForPath(path);
this.operatorGroupTree.expandRow(row);
this.editor.setOperatorList(tree);
} else if ((tree.getSubGroups().size() == 1) && (tree.getOperatorDescriptions().size() == 0)) {
int row = this.operatorGroupTree.getRowForPath(path);
this.operatorGroupTree.expandRow(row);
GroupTree child = tree.getSubGroup(0);
path = path.pathByAddingChild(child);
showNodes(child, path);
} else {
int row = this.operatorGroupTree.getRowForPath(path);
this.operatorGroupTree.expandRow(row);
this.editor.setOperatorList(null);
}
}
public JTree getTree() {
return this.operatorGroupTree;
}
}