/** Sets the cursor based on the current tool and cursor location. */
 public void setCursor(int sx, int sy, int ox, int oy) {
   xMouse = ox;
   yMouse = oy;
   mouseExited = false;
   Roi roi = imp.getRoi();
   ImageWindow win = imp.getWindow();
   if (win == null) return;
   if (IJ.spaceBarDown()) {
     setCursor(handCursor);
     return;
   }
   int id = Toolbar.getToolId();
   switch (Toolbar.getToolId()) {
     case Toolbar.MAGNIFIER:
       setCursor(moveCursor);
       break;
     case Toolbar.HAND:
       setCursor(handCursor);
       break;
     default: // selection tool
       if (id == Toolbar.SPARE1 || id >= Toolbar.SPARE2) {
         if (Prefs.usePointerCursor) setCursor(defaultCursor);
         else setCursor(crosshairCursor);
       } else if (roi != null && roi.getState() != roi.CONSTRUCTING && roi.isHandle(sx, sy) >= 0)
         setCursor(handCursor);
       else if (Prefs.usePointerCursor
           || (roi != null && roi.getState() != roi.CONSTRUCTING && roi.contains(ox, oy)))
         setCursor(defaultCursor);
       else setCursor(crosshairCursor);
   }
 }
 protected void handleRoiMouseDown(MouseEvent e) {
   int sx = e.getX();
   int sy = e.getY();
   int ox = offScreenX(sx);
   int oy = offScreenY(sy);
   Roi roi = imp.getRoi();
   int handle = roi != null ? roi.isHandle(sx, sy) : -1;
   boolean multiPointMode =
       roi != null
           && (roi instanceof PointRoi)
           && handle == -1
           && Toolbar.getToolId() == Toolbar.POINT
           && Toolbar.getMultiPointMode();
   if (multiPointMode) {
     imp.setRoi(((PointRoi) roi).addPoint(ox, oy));
     return;
   }
   setRoiModState(e, roi, handle);
   if (roi != null) {
     if (handle >= 0) {
       roi.mouseDownInHandle(handle, sx, sy);
       return;
     }
     Rectangle r = roi.getBounds();
     int type = roi.getType();
     if (type == Roi.RECTANGLE
         && r.width == imp.getWidth()
         && r.height == imp.getHeight()
         && roi.getPasteMode() == Roi.NOT_PASTING
         && !(roi instanceof ImageRoi)) {
       imp.killRoi();
       return;
     }
     if (roi.contains(ox, oy)) {
       if (roi.modState == Roi.NO_MODS) roi.handleMouseDown(sx, sy);
       else {
         imp.killRoi();
         imp.createNewRoi(sx, sy);
       }
       return;
     }
     if ((type == Roi.POLYGON || type == Roi.POLYLINE || type == Roi.ANGLE)
         && roi.getState() == roi.CONSTRUCTING) return;
     int tool = Toolbar.getToolId();
     if ((tool == Toolbar.POLYGON || tool == Toolbar.POLYLINE || tool == Toolbar.ANGLE)
         && !(IJ.shiftKeyDown() || IJ.altKeyDown())) {
       imp.killRoi();
       return;
     }
   }
   imp.createNewRoi(sx, sy);
 }
  public void mousePressed(MouseEvent e) {
    // if (ij==null) return;
    showCursorStatus = true;
    int toolID = Toolbar.getToolId();
    ImageWindow win = imp.getWindow();
    if (win != null && win.running2 && toolID != Toolbar.MAGNIFIER) {
      if (win instanceof StackWindow) ((StackWindow) win).setAnimate(false);
      else win.running2 = false;
      return;
    }

    int x = e.getX();
    int y = e.getY();
    flags = e.getModifiers();
    // IJ.log("Mouse pressed: " + e.isPopupTrigger() + "  " + ij.modifiers(flags));
    // if (toolID!=Toolbar.MAGNIFIER && e.isPopupTrigger()) {
    if (toolID != Toolbar.MAGNIFIER
        && (e.isPopupTrigger() || (!IJ.isMacintosh() && (flags & Event.META_MASK) != 0))) {
      handlePopupMenu(e);
      return;
    }

    int ox = offScreenX(x);
    int oy = offScreenY(y);
    xMouse = ox;
    yMouse = oy;
    if (IJ.spaceBarDown()) {
      // temporarily switch to "hand" tool of space bar down
      setupScroll(ox, oy);
      return;
    }
    if (showAllROIs) {
      Roi roi = imp.getRoi();
      if (!(roi != null && (roi.contains(ox, oy) || roi.isHandle(x, y) >= 0))
          && roiManagerSelect(x, y)) return;
    }
    if (customRoi && overlay != null) return;

    switch (toolID) {
      case Toolbar.MAGNIFIER:
        if (IJ.shiftKeyDown()) zoomToSelection(ox, oy);
        else if ((flags & (Event.ALT_MASK | Event.META_MASK | Event.CTRL_MASK)) != 0) {
          // IJ.run("Out");
          zoomOut(x, y);
          if (getMagnification() < 1.0) imp.repaintWindow();
        } else {
          // IJ.run("In");
          zoomIn(x, y);
          if (getMagnification() <= 1.0) imp.repaintWindow();
        }
        break;
      case Toolbar.HAND:
        setupScroll(ox, oy);
        break;
      case Toolbar.DROPPER:
        setDrawingColor(ox, oy, IJ.altKeyDown());
        break;
      case Toolbar.WAND:
        Roi roi = imp.getRoi();
        if (roi != null && roi.contains(ox, oy)) {
          Rectangle r = roi.getBounds();
          if (r.width == imageWidth && r.height == imageHeight) imp.killRoi();
          else if (!e.isAltDown()) {
            handleRoiMouseDown(e);
            return;
          }
        }
        if (roi != null) {
          int handle = roi.isHandle(x, y);
          if (handle >= 0) {
            roi.mouseDownInHandle(handle, x, y);
            return;
          }
        }
        setRoiModState(e, roi, -1);
        String mode = WandToolOptions.getMode();
        double tolerance = WandToolOptions.getTolerance();
        int npoints = IJ.doWand(ox, oy, tolerance, mode);
        if (Recorder.record && npoints > 0) {
          if (tolerance == 0.0 && mode.equals("Legacy")) Recorder.record("doWand", ox, oy);
          else
            Recorder.recordString(
                "doWand(" + ox + ", " + oy + ", " + tolerance + ", \"" + mode + "\");\n");
        }
        break;
      case Toolbar.OVAL:
        if (Toolbar.getBrushSize() > 0) new RoiBrush();
        else handleRoiMouseDown(e);
        break;
      case Toolbar.SPARE1:
      case Toolbar.SPARE2:
      case Toolbar.SPARE3:
      case Toolbar.SPARE4:
      case Toolbar.SPARE5:
      case Toolbar.SPARE6:
      case Toolbar.SPARE7:
      case Toolbar.SPARE8:
      case Toolbar.SPARE9:
        Toolbar.getInstance().runMacroTool(toolID);
        break;
      default: // selection tool
        handleRoiMouseDown(e);
    }
  }