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/*******************************************************************************
* Copyright (c) 2007 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* Copy/paste image to/from clipboard.
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.dnd.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet282 {
public static void main(String[] args) {
final Display display = new Display();
final Clipboard clipboard = new Clipboard(display);
final Shell shell = new Shell(display, SWT.SHELL_TRIM);
shell.setLayout(new GridLayout());
shell.setText("Clipboard ImageTransfer");
final Button imageButton = new Button(shell, SWT.NONE );
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
gd.minimumHeight = 400;
gd.minimumWidth = 600;
imageButton.setLayoutData(gd);
final Text imageText = new Text(shell, SWT.NONE);
imageText.setText("");
imageText.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
Composite buttons = new Composite(shell, SWT.NONE);
buttons.setLayout(new GridLayout(4, true));
Button button = new Button(buttons, SWT.PUSH);
button.setText("Open");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
FileDialog dialog = new FileDialog (shell, SWT.OPEN);
dialog.setText("Open an image file or cancel");
String string = dialog.open ();
if (string != null) {
Image image = imageButton.getImage();
if (image != null) image.dispose();
image = new Image(display, string);
imageButton.setImage(image);
imageText.setText(string);
}
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Copy");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
Image image = imageButton.getImage();
if (image != null) {
ImageTransfer imageTransfer = ImageTransfer.getInstance();
TextTransfer textTransfer = TextTransfer.getInstance();
clipboard.setContents(new Object[]{image.getImageData(), imageText.getText()},
new Transfer[]{imageTransfer, textTransfer});
}
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Paste");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
ImageData imageData = (ImageData)clipboard.getContents(ImageTransfer.getInstance());
if (imageData != null) {
imageButton.setText("");
Image image = imageButton.getImage();
if (image != null) image.dispose();
image = new Image(display, imageData);
imageButton.setImage(image);
} else {
imageButton.setText("No image");
}
String text = (String)clipboard.getContents(TextTransfer.getInstance());
if (text != null) {
imageText.setText(text);
} else {
imageText.setText("");
}
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Clear");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
imageButton.setText("");
Image image = imageButton.getImage();
if (image != null) image.dispose();
imageButton.setImage(null);
imageText.setText("");
}
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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