+ public void itemStateChanged(ItemEvent evt) {
+ viewer.moveFocusToDesktop();
+ int state = evt.getStateChange();
+ int extraModifiers = 0;
+ if (altCheckbox.getState()) { extraModifiers |= InputEvent.ALT_MASK; }
+ if (ctrlCheckbox.getState()) { extraModifiers |= InputEvent.CTRL_MASK; }
+ viewer.vc.extraModifiers = extraModifiers;
+ }