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/*******************************************************************************
* Copyright (c) 2000, 2004 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;
/*
* GC example snippet: implement a simple scribble program
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;
public class Snippet66 {
public static void main (String [] args) {
Display display = new Display ();
final Shell shell = new Shell (display);
Listener listener = new Listener () {
int lastX = 0, lastY = 0;
public void handleEvent (Event event) {
switch (event.type) {
case SWT.MouseMove:
if ((event.stateMask & SWT.BUTTON1) == 0) break;
GC gc = new GC (shell);
gc.drawLine (lastX, lastY, event.x, event.y);
gc.dispose ();
//FALL THROUGH
case SWT.MouseDown:
lastX = event.x;
lastY = event.y;
break;
}
}
};
shell.addListener (SWT.MouseDown, listener);
shell.addListener (SWT.MouseMove, listener);
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
}
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