public void mouseMoved(MouseEvent e) {
   // if (ij==null) return;
   int sx = e.getX();
   int sy = e.getY();
   int ox = offScreenX(sx);
   int oy = offScreenY(sy);
   flags = e.getModifiers();
   setCursor(sx, sy, ox, oy);
   IJ.setInputEvent(e);
   Roi roi = imp.getRoi();
   if (roi != null
       && (roi.getType() == Roi.POLYGON
           || roi.getType() == Roi.POLYLINE
           || roi.getType() == Roi.ANGLE)
       && roi.getState() == roi.CONSTRUCTING) {
     PolygonRoi pRoi = (PolygonRoi) roi;
     pRoi.handleMouseMove(ox, oy);
   } else {
     if (ox < imageWidth && oy < imageHeight) {
       ImageWindow win = imp.getWindow();
       // Cursor must move at least 12 pixels before text
       // displayed using IJ.showStatus() is overwritten.
       if ((sx - sx2) * (sx - sx2) + (sy - sy2) * (sy - sy2) > 144) showCursorStatus = true;
       if (win != null && showCursorStatus) win.mouseMoved(ox, oy);
     } else IJ.showStatus("");
   }
 }
 public void mouseDragged(MouseEvent e) {
   int x = e.getX();
   int y = e.getY();
   xMouse = offScreenX(x);
   yMouse = offScreenY(y);
   flags = e.getModifiers();
   // IJ.log("mouseDragged: "+flags);
   if (flags == 0) // workaround for Mac OS 9 bug
   flags = InputEvent.BUTTON1_MASK;
   if (Toolbar.getToolId() == Toolbar.HAND || IJ.spaceBarDown()) scroll(x, y);
   else {
     IJ.setInputEvent(e);
     Roi roi = imp.getRoi();
     if (roi != null) roi.handleMouseDrag(x, y, flags);
   }
 }