SWT Mouse : drag on mouse down



/*
 * Tracker example snippet: create a tracker (drag on mouse down)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tracker;

public class Snippet23 {

  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.open();
    shell.addListener(SWT.MouseDown, new Listener() {
      public void handleEvent(Event e) {
        Tracker tracker = new Tracker(shell, SWT.NONE);
        tracker.setRectangles(new Rectangle[] { new Rectangle(e.x, e.y,
            100, 100), });
        tracker.open();
      }
    });
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

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SWT Mouse : drag on mouse down : Mouse Key « SWT JFace Eclipse « Java

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