Java tutorial
/******************************************************************************* * Copyright (c) 2010 Australian Nuclear Science and Technology Organisation. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Norman Xiong (nxi@Bragg Institute) - initial API and implementation ******************************************************************************/ package org.gumtree.vis.awt; import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ResourceBundle; import javax.swing.BorderFactory; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTabbedPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.ListSelectionModel; import javax.swing.SpringLayout; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import org.gumtree.vis.interfaces.IHelpProvider; import org.gumtree.vis.interfaces.IPlot; import org.jfree.chart.util.ResourceBundleWrapper; /** * @author nxi * */ public abstract class AbstractPlotEditor extends JPanel implements ActionListener { /** * */ private static final long serialVersionUID = 988634288987529784L; /** * A checkbox indicating whether or not the chart is drawn with * anti-aliasing. */ private IPlot plot; private JTabbedPane tabs; private JPanel interior; private JPanel helpPanel; /** The resourceBundle for the localization. */ protected static ResourceBundle localizationResources = ResourceBundleWrapper .getBundle("org.jfree.chart.editor.LocalizationBundle"); /** * Standard constructor - the property panel is made up of a number of * sub-panels that are displayed in the tabbed pane. * * @param chart the chart, whichs properties should be changed. */ public AbstractPlotEditor(IPlot plot) { setLayout(new BorderLayout()); this.plot = plot; JPanel parts = new JPanel(new BorderLayout()); tabs = new JTabbedPane(); helpPanel = createHelpPanel(); helpPanel.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2)); tabs.addTab("Help", helpPanel); parts.add(tabs, BorderLayout.NORTH); add(parts); } private JPanel createHelpPanel() { JPanel wrap = new JPanel(new GridLayout(1, 1)); JPanel helpPanel = new JPanel(new GridLayout(1, 1)); helpPanel.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2)); // helpPanel.setBorder(BorderFactory.createTitledBorder( // BorderFactory.createEtchedBorder(), "Help Topics")); SpringLayout spring = new SpringLayout(); JPanel inner = new JPanel(spring); inner.setBorder(BorderFactory.createEmptyBorder()); final IHelpProvider provider = plot.getHelpProvider(); final JList list = new JList(provider.getHelpMap().keySet().toArray()); list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); // list.setBorder(BorderFactory.createEtchedBorder()); JScrollPane listPane1 = new JScrollPane(list); inner.add(listPane1); listPane1.setMaximumSize(new Dimension(140, 0)); listPane1.setMinimumSize(new Dimension(70, 0)); // JPanel contentPanel = new JPanel(new GridLayout(2, 1)); // inner.add(list); final JTextField keyField = new JTextField(); keyField.setMaximumSize(new Dimension(400, 20)); keyField.setEditable(false); // keyField.setMaximumSize(); // keyArea.setLineWrap(true); // keyArea.setWrapStyleWord(true); // keyArea.setBorder(BorderFactory.createEtchedBorder()); inner.add(keyField); // contentPanel.add(new JLabel()); // contentPanel.add(new JLabel()); final JTextArea helpArea = new JTextArea(); JScrollPane areaPane = new JScrollPane(helpArea); helpArea.setEditable(false); helpArea.setLineWrap(true); helpArea.setWrapStyleWord(true); // helpArea.setBorder(BorderFactory.createEtchedBorder()); inner.add(areaPane); // contentPanel.add(new JLabel()); // contentPanel.add(new JLabel()); // inner.add(contentPanel); spring.putConstraint(SpringLayout.WEST, listPane1, 2, SpringLayout.WEST, inner); spring.putConstraint(SpringLayout.NORTH, listPane1, 2, SpringLayout.NORTH, inner); spring.putConstraint(SpringLayout.WEST, keyField, 4, SpringLayout.EAST, listPane1); spring.putConstraint(SpringLayout.NORTH, keyField, 2, SpringLayout.NORTH, inner); spring.putConstraint(SpringLayout.EAST, inner, 2, SpringLayout.EAST, keyField); spring.putConstraint(SpringLayout.WEST, areaPane, 4, SpringLayout.EAST, listPane1); spring.putConstraint(SpringLayout.NORTH, areaPane, 4, SpringLayout.SOUTH, keyField); spring.putConstraint(SpringLayout.EAST, areaPane, -2, SpringLayout.EAST, inner); spring.putConstraint(SpringLayout.SOUTH, inner, 2, SpringLayout.SOUTH, areaPane); spring.putConstraint(SpringLayout.SOUTH, listPane1, -2, SpringLayout.SOUTH, inner); list.addListSelectionListener(new ListSelectionListener() { @Override public void valueChanged(ListSelectionEvent e) { Object[] selected = list.getSelectedValues(); if (selected.length >= 0) { HelpObject help = provider.getHelpMap().get(selected[0]); if (help != null) { keyField.setText(help.getKey()); helpArea.setText(help.getDiscription()); } } } }); helpPanel.add(inner, BorderLayout.NORTH); wrap.setName("Help"); wrap.add(helpPanel, BorderLayout.NORTH); return wrap; } /** * Handles user interactions with the panel. * * @param event a BackgroundPaint action. */ public abstract void actionPerformed(ActionEvent event); /** * Updates the properties of a chart to match the properties defined on the * panel. * * @param chart the chart. */ public abstract void updatePlot(); public JTabbedPane getTabs() { return tabs; } public JPanel getGeneralPanel() { return interior; } public IPlot getPlot() { return plot; } public void showHelpPanel() { tabs.setSelectedComponent(helpPanel); } }