TableFilterPanel.java
// @formatter:off
/*******************************************************************************
*
* This file is part of JMad.
*
* Copyright (c) 2008-2011, CERN. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
// @formatter:on
package cern.accsoft.steering.util.gui.panels;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.RowFilter;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
/**
* This class is a simple panel, which just contains a label and an textfield, which reacts on pressing the return key
* and then applies the entered regex-filter.
*
* @author Kajetan Fuchsberger (kajetan.fuchsberger at cern.ch)
*/
public class TableFilterPanel extends JPanel {
private static final long serialVersionUID = -1378930333245172769L;
/**
* the table on which this filter will act.
*/
private final JTable table;
/**
* A string which represents a regular expression, which shall be put as an initial value to the filter field.
*/
private final String initialExpression;
/**
* the constructor. enforces to provide a table, which to attach to.
*
* @param table the table on which we act.
*/
public TableFilterPanel(JTable table) {
this(table, null);
}
/**
* A constructor, which requires the obligatory table and an additional string which will be set as initial value to
* the filter field.
*
* @param table the table on which the filter will be applied
* @param initialExpression the initial expression which shall be set to the text field
*/
public TableFilterPanel(JTable table, String initialExpression) {
this.table = table;
this.initialExpression = initialExpression;
initComponents();
}
/**
* creates all components
*/
private void initComponents() {
setLayout(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
constraints.gridx = 0;
constraints.gridy = 0;
constraints.fill = GridBagConstraints.BOTH;
add(new JLabel("Filter:"), constraints);
table.setAutoCreateRowSorter(true);
final TableRowSorter<? extends TableModel> elementsSorter = (TableRowSorter<? extends TableModel>) this.table
.getRowSorter();
final JTextField filterText = new JTextField();
if (initialExpression != null) {
filterText.setText(initialExpression);
elementsSorter.setRowFilter(RowFilter.regexFilter(initialExpression));
}
filterText.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
String text = filterText.getText();
if (text.length() == 0) {
elementsSorter.setRowFilter(null);
} else {
elementsSorter.setRowFilter(RowFilter.regexFilter(text));
}
}
});
constraints.weightx = 1;
constraints.gridx++;
add(filterText, constraints);
}
}