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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
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*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.swingset3.demos.splitpane;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import com.sun.swingset3.DemoProperties;
import com.sun.swingset3.demos.ResourceManager;
/**
* Split Pane demo
*
* @version 1.12 11/17/05
* @author Scott Violet
* @author Jeff Dinkins
*/
@DemoProperties(
value = "JSplitPane Demo",
category = "Containers",
description = "Demonstrates JSplitPane, a container which lays out two components in an adjustable split view (horizontal or vertical)",
sourceFiles = {
"com/sun/swingset3/demos/splitpane/SplitPaneDemo.java",
"com/sun/swingset3/demos/ResourceManager.java",
"com/sun/swingset3/demos/splitpane/resources/SplitPaneDemo.properties",
"com/sun/swingset3/demos/splitpane/resources/images/day.jpg",
"com/sun/swingset3/demos/splitpane/resources/images/night.jpg",
"com/sun/swingset3/demos/splitpane/resources/images/SplitPaneDemo.gif"
}
)
public class SplitPaneDemo extends JPanel {
private static final ResourceManager resourceManager = new ResourceManager(SplitPaneDemo.class);
public static final String VERTICAL_SPLIT = resourceManager.getString("SplitPaneDemo.vert_split");
public static final String HORIZONTAL_SPLIT = resourceManager.getString("SplitPaneDemo.horz_split");
public static final String ONE_TOUCH_EXPANDABLE = resourceManager.getString("SplitPaneDemo.one_touch_expandable");
public static final String SECOND_COMPONENT_MIN_SIZE = resourceManager.getString("SplitPaneDemo.second_component_min_size");
public static final String FIRST_COMPONENT_MIN_SIZE = resourceManager.getString("SplitPaneDemo.first_component_min_size");
public static final String DIVIDER_SIZE = resourceManager.getString("SplitPaneDemo.divider_size");
public static final String DEMO_TITLE = SplitPaneDemo.class.getAnnotation(DemoProperties.class).value();
private static final Insets insets = new Insets(4, 8, 4, 8);
private final JSplitPane splitPane;
private final JLabel day;
private final JLabel night;
private JPanel controlPanel;
private GridBagLayout gridbag;
private GridBagConstraints c;
/**
* main method allows us to run as a standalone demo.
*
* @param args
*/
public static void main(String[] args) {
JFrame frame = new JFrame(DEMO_TITLE);
frame.getContentPane().add(new SplitPaneDemo());
frame.setPreferredSize(new Dimension(800, 600));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
/**
* SplitPaneDemo Constructor
*/
public SplitPaneDemo() {
setLayout(new BorderLayout());
//<snip>Create horizontal SplitPane with day and night
day = new JLabel(resourceManager.createImageIcon("day.jpg",
resourceManager.getString("SplitPaneDemo.day")));
night = new JLabel(resourceManager.createImageIcon("night.jpg",
resourceManager.getString("SplitPaneDemo.night")));
splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, day, night);
//</snip>
//<snip>Turn on continuous layout
splitPane.setContinuousLayout(true);
//</snip>
//<snip>Turn on one-touch expansion
splitPane.setOneTouchExpandable(true);
//</snip>
//<snip>Set divider location
splitPane.setDividerLocation(200);
//</snip>
//<snip>Set minimum size for each child
day.setMinimumSize(new Dimension(20, 20));
night.setMinimumSize(new Dimension(20, 20));
//</snip>
add(splitPane, BorderLayout.CENTER);
setBackground(Color.black);
add(createSplitPaneControls(), BorderLayout.SOUTH);
}
/**
* Creates controls to alter the JSplitPane.
*
* @return
*/
protected final JPanel createSplitPaneControls() {
gridbag = new GridBagLayout();
c = new GridBagConstraints();
controlPanel = new JPanel(gridbag);
//<snip>Create radio box to edit splitpane orientation
Box box = Box.createHorizontalBox();
ButtonGroup group = new ButtonGroup();
OrientationListener orientationListener = new OrientationListener();
JRadioButton button = new JRadioButton(VERTICAL_SPLIT);
button.setActionCommand("vertical");
button.addActionListener(orientationListener);
group.add(button);
box.add(button);
button = new JRadioButton(HORIZONTAL_SPLIT);
button.setActionCommand("horizontal");
button.setSelected(true);
button.addActionListener(orientationListener);
group.add(button);
box.add(button);
//</snip>
addToGridbag(box, 0, 0, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
//<snip>Create checkbox to edit continuous layout
JCheckBox checkBox = new JCheckBox(resourceManager.getString("SplitPaneDemo.cont_layout"));
checkBox.setSelected(true);
checkBox.addChangeListener((ChangeEvent e) -> {
splitPane.setContinuousLayout(
((JCheckBox) e.getSource()).isSelected());
});
//</snip>
c.gridy++;
addToGridbag(checkBox, 0, 1, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
//<snip>Create checkbox to edit one-touch-expandable
checkBox = new JCheckBox(ONE_TOUCH_EXPANDABLE);
checkBox.setSelected(true);
checkBox.addChangeListener((ChangeEvent e) -> {
splitPane.setOneTouchExpandable(
((JCheckBox) e.getSource()).isSelected());
});
//</snip>
addToGridbag(checkBox, 0, 2, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
JSeparator separator = new JSeparator(JSeparator.VERTICAL);
addToGridbag(separator, 1, 0, 1, 3,
GridBagConstraints.VERTICAL, GridBagConstraints.CENTER);
//<snip>Create spinner to edit divider size
final JSpinner spinner = new JSpinner(
new SpinnerNumberModel(splitPane.getDividerSize(), 5, 50, 2));
spinner.addChangeListener((ChangeEvent event) -> {
SpinnerNumberModel model = (SpinnerNumberModel) spinner.getModel();
splitPane.setDividerSize(model.getNumber().intValue());
});
//</snip>
JLabel label = new JLabel(DIVIDER_SIZE);
label.setLabelFor(spinner);
addToGridbag(label, 2, 0, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.EAST);
addToGridbag(spinner, 3, 0, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
//<snip>Create spinners to edit day & night's minimum sizes
JSpinner minSizeSpinner = new JSpinner(
new SpinnerNumberModel(day.getMinimumSize().width, 0, 300, 10));
minSizeSpinner.addChangeListener(new MinimumSizeListener(day));
//</snip>
label = new JLabel(FIRST_COMPONENT_MIN_SIZE);
label.setLabelFor(minSizeSpinner);
addToGridbag(label, 2, 1, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.EAST);
addToGridbag(minSizeSpinner, 3, 1, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
//<snip>Create spinners to edit day & night's minimum sizes
minSizeSpinner = new JSpinner(
new SpinnerNumberModel(night.getMinimumSize().width, 0, 300, 10));
minSizeSpinner.addChangeListener(new MinimumSizeListener(night));
//</snip>
label = new JLabel(SECOND_COMPONENT_MIN_SIZE);
label.setLabelFor(minSizeSpinner);
addToGridbag(label, 2, 2, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.EAST);
addToGridbag(minSizeSpinner, 3, 2, 1, 1,
GridBagConstraints.NONE, GridBagConstraints.WEST);
return controlPanel;
}
protected void addToGridbag(JComponent child, int gx, int gy,
int gwidth, int gheight, int fill, int anchor) {
c.insets = insets;
c.gridx = gx;
c.gridy = gy;
c.gridwidth = gwidth;
c.gridheight = gheight;
c.fill = fill;
c.anchor = anchor;
gridbag.addLayoutComponent(child, c);
controlPanel.add(child);
}
//<snip>Create radio box to edit splitpane orientation
private class OrientationListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent event) {
splitPane.setOrientation(event.getActionCommand().equals("vertical")
? JSplitPane.VERTICAL_SPLIT : JSplitPane.HORIZONTAL_SPLIT);
}
}
//</snip>
//<snip>Create spinners to edit day & night's minimum sizes
public class MinimumSizeListener implements ChangeListener {
private final JComponent component;
public MinimumSizeListener(JComponent c) {
this.component = c;
}
@Override
public void stateChanged(ChangeEvent event) {
JSpinner spinner = (JSpinner) event.getSource();
SpinnerNumberModel model = (SpinnerNumberModel) spinner.getModel();
int min = model.getNumber().intValue();
component.setMinimumSize(new Dimension(min, min));
}
}
//</snip>
}