private boolean deleteOverlayRoi(ImagePlus imp) {
if (imp == null) return false;
Overlay overlay = null;
ImageCanvas ic = imp.getCanvas();
if (ic != null) overlay = ic.getShowAllList();
if (overlay == null) overlay = imp.getOverlay();
if (overlay == null) return false;
Roi roi = imp.getRoi();
for (int i = 0; i < overlay.size(); i++) {
Roi roi2 = overlay.get(i);
if (roi2 == roi) {
overlay.remove(i);
imp.deleteRoi();
ic = imp.getCanvas();
if (ic != null) ic.roiManagerSelect(roi, true);
return true;
}
}
return false;
}
private void loadCursors() {
Toolkit toolkit = Toolkit.getDefaultToolkit();
String path = Prefs.getImageJDir() + "images/crosshair-cursor.gif";
File f = new File(path);
if (!f.exists()) return;
// Image image = toolkit.getImage(path);
ImageIcon icon = new ImageIcon(path);
Image image = icon.getImage();
if (image == null) return;
int width = icon.getIconWidth();
int height = icon.getIconHeight();
Point hotSpot = new Point(width / 2, height / 2);
Cursor crosshairCursor = toolkit.createCustomCursor(image, hotSpot, "crosshair-cursor.gif");
ImageCanvas.setCursor(crosshairCursor, 0);
}
void showGrid(Shape shape) {
ImageCanvas ic = imp.getCanvas();
if (ic == null) return;
if (shape == null) ic.setDisplayList(null);
else ic.setDisplayList(shape, getColor(), null);
}