/**
* Handles the removal of a ViewManager. McV needs to override this so that the stack of
* previously active ViewManagers is ordered properly. McV uses this method to make the ViewPanel
* respond immediately to the change.
*
* @param viewManager The ViewManager being removed.
*/
@Override
public void removeViewManager(ViewManager viewManager) {
// the ordering of the stack must be preserved! this is the only chance
// to ensure the ordering if the incoming VM is inactive.
if (getLastActiveViewManager() != viewManager) {
previousVMs.remove(viewManager);
inspectStack("removing inactive vm");
}
// now just sit back and let the IDV and setLastActiveViewManager work
// their magic.
super.removeViewManager(viewManager);
// inform UIManager that the VM needs to be dissociated from its
// ComponentHolder.
uiManager.removeViewManagerHolder(viewManager);
// force the layer controls tabs to layout the remaining components,
// but we don't want to bring it to the front!
uiManager.getViewPanel().getContents().validate();
}
// TODO: when you start removing the debug stuff, just convert the messages
// to comments.
@Override
public void setLastActiveViewManager(ViewManager vm) {
String debugMsg = "created new vm";
if (vm != null) {
if (previousVMs.search(vm) >= 0) {
debugMsg = "reset active vm";
previousVMs.remove(vm);
focusLayerControlsOn(vm, false);
}
previousVMs.push(vm);
} else {
debugMsg = "removed active vm";
ViewManager lastActive = getLastActiveViewManager();
if (lastActive == null) return;
lastActive.setLastActive(false);
previousVMs.pop();
// if there are no more VMs, make sure the IDV code knows about it
// by setting the last active VM to null.
if (previousVMs.isEmpty()) {
super.setLastActiveViewManager(null);
return;
}
lastActive = previousVMs.peek();
lastActive.setLastActive(true);
focusLayerControlsOn(lastActive, false);
}
inspectStack(debugMsg);
super.setLastActiveViewManager(previousVMs.peek());
// start active tab testing
ComponentHolder holder = uiManager.getViewManagerHolder(previousVMs.peek());
if ((holder != null) && (holder instanceof McvComponentHolder)) {
((McvComponentHolder) holder).setAsActiveTab();
}
// stop active tab testing
}