private void invalidate() {
		invalidateComponentNode();

		disposeComponent();

		if (componentProvider != null) {
			if (isShowing) {
				componentProvider.componentShown();
			}
			else {
				componentProvider.componentHidden();
			}
		}
	}
Sets the active state.
@param doShow true to show the component, false to hide it.
Ghidra/Framework/Docking/src/main/java/docking/ComponentPlaceholder.java