示例#1
0
  MapShell(Display parent) {
    display = parent;
    mapShell = new Shell(display, SWT.MIN | SWT.CLOSE | SWT.RESIZE);
    mapShell.setText(RadarConsts.PROGRAM_NAME + " " + RadarConsts.VERSION);
    mapShell.addDisposeListener(
        new DisposeListener() {
          public void widgetDisposed(DisposeEvent e) {
            saveWindowPosition();
          }
        });
    mapShell.addListener(
        SWT.Resize,
        new Listener() {
          public void handleEvent(Event event) {
            renderMap();
          }
        });

    mapShell.setBackground(parent.getSystemColor(SWT.COLOR_BLACK));
  }
  public static void main(String[] args) {
    final Display display = new Display();
    // Shell must be created with style SWT.NO_TRIM
    final Shell shell = new Shell(display, SWT.NO_TRIM | SWT.ON_TOP);
    shell.setBackground(display.getSystemColor(SWT.COLOR_RED));
    // define a region that looks like a key hole
    Region region = new Region();
    region.add(circle(67, 67, 67));
    region.subtract(circle(20, 67, 50));
    region.subtract(new int[] {67, 50, 55, 105, 79, 105});
    // define the shape of the shell using setRegion
    shell.setRegion(region);
    Rectangle size = region.getBounds();
    shell.setSize(size.width, size.height);
    // add ability to move shell around
    Listener l =
        new Listener() {
          /** The x/y of the MouseDown, relative to top-left of the shell. */
          Point origin;

          @Override
          public void handleEvent(Event e) {
            switch (e.type) {
              case SWT.MouseDown:
                Point point = shell.toDisplay(e.x, e.y);
                Point loc = shell.getLocation();
                origin = new Point(point.x - loc.x, point.y - loc.y);
                break;
              case SWT.MouseUp:
                origin = null;
                break;
              case SWT.MouseMove:
                if (origin != null) {
                  Point p = display.map(shell, null, e.x, e.y);
                  shell.setLocation(p.x - origin.x, p.y - origin.y);
                }
                break;
            }
          }
        };
    shell.addListener(SWT.MouseDown, l);
    shell.addListener(SWT.MouseUp, l);
    shell.addListener(SWT.MouseMove, l);
    // add ability to close shell
    Button b = new Button(shell, SWT.PUSH);
    b.setBackground(shell.getBackground());
    b.setText("close");
    b.pack();
    b.setLocation(10, 68);
    b.addListener(
        SWT.Selection,
        new Listener() {
          @Override
          public void handleEvent(Event e) {
            shell.close();
          }
        });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) display.sleep();
    }
    region.dispose();
    display.dispose();
  }