Simple File Browser in SWT Table
/******************************************************************************
* Copyright (c) 1998, 2004 Jackwind Li Guojie
* All right reserved.
*
* Created on Jan 7, 2004 2:38:45 PM by JACK
* $Id$
*
* visit: http://www.asprise.com/swt
*****************************************************************************/
import java.io.File;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
public class SimpleFileBrowser {
Display display = new Display();
Shell shell = new Shell(display);
ImageRegistry imageRegistry;
Table table;
public SimpleFileBrowser() {
init();
shell.pack();
shell.open();
//textUser.forceFocus();
// Set up the event loop.
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
private void init() {
shell.setText("File Browser");
shell.setLayout(new GridLayout(1, true));
Button button = new Button(shell, SWT.PUSH);
button.setText("Browse ...");
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
DirectoryDialog dialog = new DirectoryDialog(shell, SWT.NULL);
String path = dialog.open();
if (path != null) {
File file = new File(path);
if (file.isFile())
displayFiles(new String[] { file.toString()});
else
displayFiles(file.list());
}
}
});
GridData gd = new GridData(GridData.FILL_BOTH);
table = new Table(shell, SWT.MULTI);
table.setLayoutData(gd);
// creates an image registry and adds icons to the image registry.
imageRegistry = new ImageRegistry();
ImageDescriptor defaultIcon =
ImageDescriptor.createFromFile(null, "java2s.gif");
imageRegistry.put("default", defaultIcon);
ImageDescriptor jarIcon =
ImageDescriptor.createFromFile(null, "img/jar.gif");
imageRegistry.put("jar", jarIcon);
}
public void displayFiles(String[] files) {
// Removes all existing table items.
table.removeAll();
for (int i = 0; files != null && i < files.length; i++) {
TableItem item = new TableItem(table, SWT.NULL);
Image image = null;
if (files[i].endsWith(".jar")) {
image = imageRegistry.get("jar");
} else {
image = imageRegistry.get("default");
}
item.setImage(image);
item.setText(files[i]);
}
}
public void displayFiles2(String[] files) {
// Disposes all of the images used by the table items first.
TableItem[] items = table.getItems();
for(int i=0; items != null && i < items.length; i++) {
if(items[i].getImage() != null)
items[i].getImage().dispose();
}
// Removes all existing table items.
table.removeAll();
for (int i = 0; files != null && i < files.length; i++) {
TableItem item = new TableItem(table, SWT.NULL);
Image image = null;
if (files[i].endsWith(".jar")) {
image = new Image(display, "java2s.gif");
} else {
image = new Image(display, "img/default.gif");
}
item.setImage(image);
item.setText(files[i]);
}
}
public static void main(String[] args) {
new SimpleFileBrowser();
}
}
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