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413 lines
13 KiB
413 lines
13 KiB
/* |
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* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* -Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* -Redistribution in binary form must reproduct the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the distribution. |
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* |
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* Neither the name of Sun Microsystems, Inc. or the names of contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* This software is provided "AS IS," without a warranty of any kind. ALL |
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* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING |
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* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE |
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* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT |
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* BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT |
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* OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS |
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* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST |
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* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, |
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* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY |
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* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN |
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* IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
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* |
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* You acknowledge that Software is not designed, licensed or intended for |
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* use in the design, construction, operation or maintenance of any nuclear |
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* facility. |
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*/ |
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/* |
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* @(#)FileChooserDemo.java 1.13 03/01/23 |
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*/ |
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import javax.swing.*; |
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import javax.swing.border.BevelBorder; |
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import java.awt.*; |
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import java.awt.event.ActionEvent; |
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import java.beans.PropertyChangeEvent; |
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import java.beans.PropertyChangeListener; |
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import java.io.File; |
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/** |
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* JFileChooserDemo |
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* |
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* @version 1.1 07/16/99 |
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* @author Jeff Dinkins |
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*/ |
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public class FileChooserDemo extends DemoModule { |
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JLabel theImage; |
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Icon jpgIcon; |
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Icon gifIcon; |
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/** |
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* main method allows us to run as a standalone demo. |
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*/ |
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public static void main(String[] args) { |
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FileChooserDemo demo = new FileChooserDemo(null); |
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demo.mainImpl(); |
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} |
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/** |
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* FileChooserDemo Constructor |
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*/ |
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public FileChooserDemo(SwingSet2 swingset) { |
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// Set the title for this demo, and an icon used to represent this |
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// demo inside the SwingSet2 app. |
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super(swingset, "FileChooserDemo", "toolbar/JFileChooser.gif"); |
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createFileChooserDemo(); |
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} |
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public void createFileChooserDemo() { |
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theImage = new JLabel(""); |
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jpgIcon = createImageIcon("filechooser/jpgIcon.jpg", "jpg image"); |
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gifIcon = createImageIcon("filechooser/gifIcon.gif", "gif image"); |
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JPanel demoPanel = getDemoPanel(); |
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demoPanel.setLayout(new BoxLayout(demoPanel, BoxLayout.Y_AXIS)); |
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JPanel innerPanel = new JPanel(); |
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innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.X_AXIS)); |
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demoPanel.add(Box.createRigidArea(VGAP20)); |
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demoPanel.add(innerPanel); |
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demoPanel.add(Box.createRigidArea(VGAP20)); |
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innerPanel.add(Box.createRigidArea(HGAP20)); |
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// Create a panel to hold buttons |
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JPanel buttonPanel = new JPanel() { |
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public Dimension getMaximumSize() { |
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return new Dimension(getPreferredSize().width, super.getMaximumSize().height); |
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} |
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}; |
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buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.Y_AXIS)); |
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buttonPanel.add(Box.createRigidArea(VGAP15)); |
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buttonPanel.add(createPlainFileChooserButton()); |
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buttonPanel.add(Box.createRigidArea(VGAP15)); |
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buttonPanel.add(createPreviewFileChooserButton()); |
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buttonPanel.add(Box.createRigidArea(VGAP15)); |
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buttonPanel.add(createCustomFileChooserButton()); |
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buttonPanel.add(Box.createVerticalGlue()); |
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// Create a panel to hold the image |
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JPanel imagePanel = new JPanel(); |
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imagePanel.setLayout(new BorderLayout()); |
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imagePanel.setBorder(new BevelBorder(BevelBorder.LOWERED)); |
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JScrollPane scroller = new JScrollPane(theImage); |
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scroller.getVerticalScrollBar().setUnitIncrement(10); |
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scroller.getHorizontalScrollBar().setUnitIncrement(10); |
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imagePanel.add(scroller, BorderLayout.CENTER); |
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// add buttons and image panels to inner panel |
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innerPanel.add(buttonPanel); |
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innerPanel.add(Box.createRigidArea(HGAP30)); |
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innerPanel.add(imagePanel); |
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innerPanel.add(Box.createRigidArea(HGAP20)); |
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} |
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public JFileChooser createFileChooser() { |
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// create a filechooser |
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JFileChooser fc = new JFileChooser(); |
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// set the current directory to be the images directory |
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File swingFile = new File("resources/images/About.jpg"); |
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if(swingFile.exists()) { |
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fc.setCurrentDirectory(swingFile); |
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fc.setSelectedFile(swingFile); |
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} |
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return fc; |
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} |
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public JButton createPlainFileChooserButton() { |
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Action a = new AbstractAction(getString("FileChooserDemo.plainbutton")) { |
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public void actionPerformed(ActionEvent e) { |
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JFileChooser fc = createFileChooser(); |
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// show the filechooser |
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int result = fc.showOpenDialog(getDemoPanel()); |
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// if we selected an image, load the image |
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if(result == JFileChooser.APPROVE_OPTION) { |
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loadImage(fc.getSelectedFile().getPath()); |
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} |
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} |
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}; |
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return createButton(a); |
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} |
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public JButton createPreviewFileChooserButton() { |
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Action a = new AbstractAction(getString("FileChooserDemo.previewbutton")) { |
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public void actionPerformed(ActionEvent e) { |
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JFileChooser fc = createFileChooser(); |
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// Add filefilter & fileview |
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ExampleFileFilter filter = new ExampleFileFilter( |
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new String[] {"jpg", "gif"}, getString("FileChooserDemo.filterdescription") |
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); |
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ExampleFileView fileView = new ExampleFileView(); |
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fileView.putIcon("jpg", jpgIcon); |
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fileView.putIcon("gif", gifIcon); |
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fc.setFileView(fileView); |
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fc.addChoosableFileFilter(filter); |
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fc.setFileFilter(filter); |
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// add preview accessory |
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fc.setAccessory(new FilePreviewer(fc)); |
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// show the filechooser |
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int result = fc.showOpenDialog(getDemoPanel()); |
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// if we selected an image, load the image |
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if(result == JFileChooser.APPROVE_OPTION) { |
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loadImage(fc.getSelectedFile().getPath()); |
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} |
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} |
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}; |
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return createButton(a); |
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} |
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JDialog dialog; |
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JFileChooser fc; |
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public JButton createCustomFileChooserButton() { |
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Action a = new AbstractAction(getString("FileChooserDemo.custombutton")) { |
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public void actionPerformed(ActionEvent e) { |
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fc = createFileChooser(); |
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// Add filefilter & fileview |
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ExampleFileFilter filter = new ExampleFileFilter( |
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new String[] {"jpg", "gif"}, getString("FileChooserDemo.filterdescription") |
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); |
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ExampleFileView fileView = new ExampleFileView(); |
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fileView.putIcon("jpg", jpgIcon); |
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fileView.putIcon("gif", gifIcon); |
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fc.setFileView(fileView); |
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fc.addChoosableFileFilter(filter); |
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// add preview accessory |
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fc.setAccessory(new FilePreviewer(fc)); |
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// remove the approve/cancel buttons |
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fc.setControlButtonsAreShown(false); |
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// make custom controls |
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//wokka |
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JPanel custom = new JPanel(); |
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custom.setLayout(new BoxLayout(custom, BoxLayout.Y_AXIS)); |
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custom.add(Box.createRigidArea(VGAP10)); |
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JLabel description = new JLabel(getString("FileChooserDemo.description")); |
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description.setAlignmentX(JLabel.CENTER_ALIGNMENT); |
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custom.add(description); |
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custom.add(Box.createRigidArea(VGAP10)); |
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custom.add(fc); |
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Action okAction = createOKAction(); |
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fc.addActionListener(okAction); |
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JPanel buttons = new JPanel(); |
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buttons.setLayout(new BoxLayout(buttons, BoxLayout.X_AXIS)); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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buttons.add(createImageButton(createFindAction())); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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buttons.add(createButton(createAboutAction())); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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buttons.add(createButton(okAction)); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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buttons.add(createButton(createCancelAction())); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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buttons.add(createImageButton(createHelpAction())); |
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buttons.add(Box.createRigidArea(HGAP10)); |
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custom.add(buttons); |
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custom.add(Box.createRigidArea(VGAP10)); |
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// show the filechooser |
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Frame parent = (Frame) SwingUtilities.getAncestorOfClass(Frame.class, getDemoPanel()); |
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dialog = new JDialog(parent, getString("FileChooserDemo.dialogtitle"), true); |
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dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); |
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dialog.getContentPane().add(custom, BorderLayout.CENTER); |
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dialog.pack(); |
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dialog.setLocationRelativeTo(getDemoPanel()); |
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dialog.show(); |
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} |
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}; |
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return createButton(a); |
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} |
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public Action createAboutAction() { |
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return new AbstractAction(getString("FileChooserDemo.about")) { |
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public void actionPerformed(ActionEvent e) { |
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File file = fc.getSelectedFile(); |
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String text; |
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if(file == null) { |
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text = getString("FileChooserDemo.nofileselected"); |
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} else { |
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text = "<html>" + getString("FileChooserDemo.thefile"); |
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text += "<br><font color=green>" + file.getName() + "</font><br>"; |
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text += getString("FileChooserDemo.isprobably") + "</html>"; |
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} |
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JOptionPane.showMessageDialog(getDemoPanel(), text); |
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} |
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}; |
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} |
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public Action createOKAction() { |
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return new AbstractAction(getString("FileChooserDemo.ok")) { |
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public void actionPerformed(ActionEvent e) { |
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dialog.dispose(); |
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if (!e.getActionCommand().equals(JFileChooser.CANCEL_SELECTION) |
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&& fc.getSelectedFile() != null) { |
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loadImage(fc.getSelectedFile().getPath()); |
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} |
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} |
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}; |
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} |
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public Action createCancelAction() { |
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return new AbstractAction(getString("FileChooserDemo.cancel")) { |
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public void actionPerformed(ActionEvent e) { |
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dialog.dispose(); |
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} |
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}; |
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} |
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public Action createFindAction() { |
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Icon icon = createImageIcon("filechooser/find.gif", getString("FileChooserDemo.find")); |
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return new AbstractAction("", icon) { |
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public void actionPerformed(ActionEvent e) { |
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String result = JOptionPane.showInputDialog(getDemoPanel(), getString("FileChooserDemo.findquestion")); |
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if (result != null) { |
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JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.findresponse")); |
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} |
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} |
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}; |
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} |
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public Action createHelpAction() { |
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Icon icon = createImageIcon("filechooser/help.gif", getString("FileChooserDemo.help")); |
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return new AbstractAction("", icon) { |
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public void actionPerformed(ActionEvent e) { |
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JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.helptext")); |
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} |
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}; |
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} |
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class MyImageIcon extends ImageIcon { |
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public MyImageIcon(String filename) { |
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super(filename); |
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}; |
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public synchronized void paintIcon(Component c, Graphics g, int x, int y) { |
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g.setColor(Color.white); |
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g.fillRect(0,0, c.getWidth(), c.getHeight()); |
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if(getImageObserver() == null) { |
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g.drawImage( |
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getImage(), |
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c.getWidth()/2 - getIconWidth()/2, |
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c.getHeight()/2 - getIconHeight()/2, |
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c |
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); |
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} else { |
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g.drawImage( |
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getImage(), |
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c.getWidth()/2 - getIconWidth()/2, |
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c.getHeight()/2 - getIconHeight()/2, |
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getImageObserver() |
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); |
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} |
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} |
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} |
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public void loadImage(String filename) { |
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theImage.setIcon(new MyImageIcon(filename)); |
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} |
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public JButton createButton(Action a) { |
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JButton b = new JButton(a) { |
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public Dimension getMaximumSize() { |
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int width = Short.MAX_VALUE; |
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int height = super.getMaximumSize().height; |
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return new Dimension(width, height); |
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} |
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}; |
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return b; |
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} |
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public JButton createImageButton(Action a) { |
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JButton b = new JButton(a); |
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b.setMargin(new Insets(0,0,0,0)); |
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return b; |
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} |
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} |
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class FilePreviewer extends JComponent implements PropertyChangeListener { |
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ImageIcon thumbnail = null; |
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public FilePreviewer(JFileChooser fc) { |
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setPreferredSize(new Dimension(100, 50)); |
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fc.addPropertyChangeListener(this); |
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setBorder(new BevelBorder(BevelBorder.LOWERED)); |
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} |
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public void loadImage(File f) { |
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if (f == null) { |
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thumbnail = null; |
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} else { |
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ImageIcon tmpIcon = new ImageIcon(f.getPath()); |
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if(tmpIcon.getIconWidth() > 90) { |
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thumbnail = new ImageIcon( |
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tmpIcon.getImage().getScaledInstance(90, -1, Image.SCALE_DEFAULT)); |
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} else { |
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thumbnail = tmpIcon; |
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} |
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} |
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} |
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public void propertyChange(PropertyChangeEvent e) { |
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String prop = e.getPropertyName(); |
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if(prop == JFileChooser.SELECTED_FILE_CHANGED_PROPERTY) { |
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if(isShowing()) { |
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loadImage((File) e.getNewValue()); |
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repaint(); |
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} |
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} |
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} |
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public void paint(Graphics g) { |
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super.paint(g); |
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if(thumbnail != null) { |
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int x = getWidth()/2 - thumbnail.getIconWidth()/2; |
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int y = getHeight()/2 - thumbnail.getIconHeight()/2; |
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if(y < 0) { |
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y = 0; |
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} |
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if(x < 5) { |
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x = 5; |
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} |
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thumbnail.paintIcon(this, g, x, y); |
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} |
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} |
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} |
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