Listener listener = new Listener() {
	boolean mouseDown=false;
	boolean mouseMoved=false;
	private Integer oldX, oldY;
	final Cursor cursorCross = new Cursor(parent.getDisplay(), SWT.CURSOR_CROSS);
	final Cursor cursorNormal = new Cursor(parent.getDisplay(), SWT.CURSOR_ARROW);
	
	public void handleEvent(Event event) {
		switch (event.type) {
		case SWT.MouseDown:
			mouseDown=true;
			break;
		case SWT.MouseMove:
			if(oldX!=null && oldY!=null && mouseDown) {
				mouseMoved=true;
				parent.setCursor(cursorCross);
				GC gc= new GC(chart.getPlotArea());
				gc.setLineStyle(SWT.LINE_DOT);
				gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_DARK_GRAY));
				gc.drawRectangle(oldX, oldY, event.x-oldX, event.y-oldY);
				gc.dispose();
			} else {
				oldX=event.x;
				oldY=event.y;
			}
			break;
		case SWT.MouseUp:
			if(mouseMoved) {
				Range range= new Range(getXAxis().getDataCoordinate(oldX),getXAxis().getDataCoordinate(event.x));
				getXAxis().setRange(range);
				range= new Range(getYAxis().getDataCoordinate(oldY),getYAxis().getDataCoordinate(event.y));
				getYAxis().setRange(range);
				chart.redraw();
				oldX=null;
				oldY=null;
				parent.setCursor(cursorNormal);
			}
			mouseMoved=false;
			mouseDown=false;
			break;
		}
	}
};
chart.getPlotArea().addListener(SWT.MouseDown, listener);
chart.getPlotArea().addListener(SWT.MouseUp, listener);
chart.getPlotArea().addListener(SWT.MouseMove, listener);