Java tutorial
/* * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package components; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; import java.util.*; import java.awt.*; import java.awt.event.*; public class SharedModelDemo extends JPanel { JTextArea output; JList list; JTable table; String newline = "\n"; ListSelectionModel listSelectionModel; public SharedModelDemo() { super(new BorderLayout()); Vector data = new Vector(7); String[] columnNames = { "French", "Spanish", "Italian" }; String[] oneData = { "un", "uno", "uno" }; String[] twoData = { "deux", "dos", "due" }; String[] threeData = { "trois", "tres", "tre" }; String[] fourData = { "quatre", "cuatro", "quattro" }; String[] fiveData = { "cinq", "cinco", "cinque" }; String[] sixData = { "six", "seis", "sei" }; String[] sevenData = { "sept", "siete", "sette" }; //Build the model. SharedDataModel dataModel = new SharedDataModel(columnNames); dataModel.addElement(oneData); dataModel.addElement(twoData); dataModel.addElement(threeData); dataModel.addElement(fourData); dataModel.addElement(fiveData); dataModel.addElement(sixData); dataModel.addElement(sevenData); list = new JList(dataModel); list.setCellRenderer(new DefaultListCellRenderer() { public Component getListCellRendererComponent(JList l, Object value, int i, boolean s, boolean f) { String[] array = (String[]) value; return super.getListCellRendererComponent(l, array[0], i, s, f); } }); listSelectionModel = list.getSelectionModel(); listSelectionModel.addListSelectionListener(new SharedListSelectionHandler()); JScrollPane listPane = new JScrollPane(list); table = new JTable(dataModel); table.setSelectionModel(listSelectionModel); JScrollPane tablePane = new JScrollPane(table); //Build control area (use default FlowLayout). JPanel controlPane = new JPanel(); String[] modes = { "SINGLE_SELECTION", "SINGLE_INTERVAL_SELECTION", "MULTIPLE_INTERVAL_SELECTION" }; final JComboBox comboBox = new JComboBox(modes); comboBox.setSelectedIndex(2); comboBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String newMode = (String) comboBox.getSelectedItem(); if (newMode.equals("SINGLE_SELECTION")) { listSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); } else if (newMode.equals("SINGLE_INTERVAL_SELECTION")) { listSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION); } else { listSelectionModel.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION); } output.append("----------" + "Mode: " + newMode + "----------" + newline); } }); controlPane.add(new JLabel("Selection mode:")); controlPane.add(comboBox); //Build output area. output = new JTextArea(10, 40); output.setEditable(false); JScrollPane outputPane = new JScrollPane(output, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); //Do the layout. JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT); add(splitPane, BorderLayout.CENTER); JPanel topHalf = new JPanel(); topHalf.setLayout(new BoxLayout(topHalf, BoxLayout.X_AXIS)); JPanel listContainer = new JPanel(new GridLayout(1, 1)); listContainer.setBorder(BorderFactory.createTitledBorder("List")); listContainer.add(listPane); JPanel tableContainer = new JPanel(new GridLayout(1, 1)); tableContainer.setBorder(BorderFactory.createTitledBorder("Table")); tableContainer.add(tablePane); tablePane.setPreferredSize(new Dimension(300, 100)); topHalf.setBorder(BorderFactory.createEmptyBorder(5, 5, 0, 5)); topHalf.add(listContainer); topHalf.add(tableContainer); topHalf.setMinimumSize(new Dimension(400, 50)); topHalf.setPreferredSize(new Dimension(400, 110)); splitPane.add(topHalf); JPanel bottomHalf = new JPanel(new BorderLayout()); bottomHalf.add(controlPane, BorderLayout.NORTH); bottomHalf.add(outputPane, BorderLayout.CENTER); //XXX: next line needed if bottomHalf is a scroll pane: //bottomHalf.setMinimumSize(new Dimension(400, 50)); bottomHalf.setPreferredSize(new Dimension(450, 135)); splitPane.add(bottomHalf); } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new JFrame("SharedModelDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Create and set up the content pane. JComponent newContentPane = new SharedModelDemo(); newContentPane.setOpaque(true); //content panes must be opaque frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } class SharedListSelectionHandler implements ListSelectionListener { public void valueChanged(ListSelectionEvent e) { ListSelectionModel lsm = (ListSelectionModel) e.getSource(); int firstIndex = e.getFirstIndex(); int lastIndex = e.getLastIndex(); boolean isAdjusting = e.getValueIsAdjusting(); output.append("Event for indexes " + firstIndex + " - " + lastIndex + "; isAdjusting is " + isAdjusting + "; selected indexes:"); if (lsm.isSelectionEmpty()) { output.append(" <none>"); } else { // Find out which indexes are selected. int minIndex = lsm.getMinSelectionIndex(); int maxIndex = lsm.getMaxSelectionIndex(); for (int i = minIndex; i <= maxIndex; i++) { if (lsm.isSelectedIndex(i)) { output.append(" " + i); } } } output.append(newline); } } class SharedDataModel extends DefaultListModel implements TableModel { public String[] columnNames; public SharedDataModel(String[] columnNames) { super(); this.columnNames = columnNames; } public void rowChanged(int row) { fireContentsChanged(this, row, row); } private TableModel tableModel = new AbstractTableModel() { public String getColumnName(int column) { return columnNames[column]; } public int getRowCount() { return size(); } public int getColumnCount() { return columnNames.length; } public Object getValueAt(int row, int column) { String[] rowData = (String[]) elementAt(row); return rowData[column]; } public boolean isCellEditable(int row, int column) { return true; } public void setValueAt(Object value, int row, int column) { String newValue = (String) value; String[] rowData = (String[]) elementAt(row); rowData[column] = newValue; fireTableCellUpdated(row, column); //table event rowChanged(row); //list event } }; //Implement the TableModel interface. public int getRowCount() { return tableModel.getRowCount(); } public int getColumnCount() { return tableModel.getColumnCount(); } public String getColumnName(int columnIndex) { return tableModel.getColumnName(columnIndex); } public Class getColumnClass(int columnIndex) { return tableModel.getColumnClass(columnIndex); } public boolean isCellEditable(int rowIndex, int columnIndex) { return tableModel.isCellEditable(rowIndex, columnIndex); } public Object getValueAt(int rowIndex, int columnIndex) { return tableModel.getValueAt(rowIndex, columnIndex); } public void setValueAt(Object aValue, int rowIndex, int columnIndex) { tableModel.setValueAt(aValue, rowIndex, columnIndex); } public void addTableModelListener(TableModelListener l) { tableModel.addTableModelListener(l); } public void removeTableModelListener(TableModelListener l) { tableModel.removeTableModelListener(l); } } }