// drag - publish rectangle dimensions in status bar
@Override
public void onMouseDrag(final MsDraggedEvent evt) {
if (evt.getButton() != MsButtonEvent.LEFT_BUTTON) return;
final StatusService statusService = evt.getContext().getService(StatusService.class);
final ImageDisplayService imgService = evt.getContext().getService(ImageDisplayService.class);
final ImageDisplay imgDisp = imgService.getActiveImageDisplay();
final IntCoords startPt = new IntCoords(anchor.x, anchor.y);
final IntCoords endPt = new IntCoords(evt.getX() - anchor.x, evt.getY() - anchor.y);
final RealCoords startPtModelSpace = imgDisp.getCanvas().panelToImageCoords(startPt);
final RealCoords endPtModelSpace = imgDisp.getCanvas().panelToImageCoords(endPt);
final int x = (int) startPtModelSpace.x;
final int y = (int) startPtModelSpace.y;
final int w = (int) endPtModelSpace.x;
final int h = (int) endPtModelSpace.y;
final String message = String.format("x=%d, y=%d, w=%d, h=%d", x, y, w, h);
statusService.showStatus(message);
// NB: Prevent PixelProbe from overwriting the status bar.
evt.consume();
}
/** Gets the coordinates in <em>data</em> space for the given (x, y) pixel coordinates. */
private RealCoords getDataCoords(final Display<?> d, final int x, final int y) {
if (!(d instanceof ImageDisplay)) return null;
final ImageDisplay imageDisplay = (ImageDisplay) d;
final ImageCanvas canvas = imageDisplay.getCanvas();
return canvas.panelToDataCoords(new IntCoords(x, y));
}
