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# tlp::Observable Class Reference `#include <Observable.h>` Inherited by tlp::ColorScale, tlp::Graph, and tlp::PropertyInterface. Inheritance diagram for tlp::Observable: [legend] List of all members. ## Detailed Description All instances of that class can be observed by by an instance of the Observer class. ## Public Member Functions virtual ~Observable () void addObserver (Observer *) unsigned int countObservers () void removeObserver (Observer *) void removeObservers () void notifyObservers () void notifyDestroy () ## Static Public Member Functions static void holdObservers () static void unholdObservers () ## Protected Member Functions void removeOnlyObserver (Observer *) ## Protected Attributes stdext::slist< Observer * > observersList ## Static Protected Attributes static int holdCounter static ObserverMap holdObserverMap static ObservableMap holdObservableMap ## Friends class Observer ## Constructor & Destructor Documentation
virtual tlp::Observable::~Observable | ( |  | ) | `[inline, virtual]`
## Member Function Documentation
void tlp::Observable::addObserver | ( | Observer * |  | ) |
| Register a new observer
unsigned int tlp::Observable::countObservers | ( |  | ) | `[inline]`
| Returns the number of observers
static void tlp::Observable::holdObservers | ( |  | ) | `[static]`
| Queue notifications
void tlp::Observable::notifyDestroy | ( |  | ) |
| Notify all the observers that the object will be destroyed. Need to be called into the destructor of the observable. Reimplemented in tlp::Graph.
void tlp::Observable::notifyObservers | ( |  | ) |
| Notify all the observers
void tlp::Observable::removeObserver | ( | Observer * |  | ) | `[inline]`
| Remove an observer
void tlp::Observable::removeObservers | ( |  | ) |
| Remove all observers
void tlp::Observable::removeOnlyObserver | ( | Observer * |  | ) | `[inline, protected]`
static void tlp::Observable::unholdObservers | ( |  | ) | `[static]`
| UnQueue notifications
## Friends And Related Function Documentation
friend class Observer`[friend]`
## Member Data Documentation
int tlp::Observable::holdCounter`[static, protected]`
ObservableMap tlp::Observable::holdObservableMap`[static, protected]`
ObserverMap tlp::Observable::holdObserverMap`[static, protected]`
stdext::slist<Observer*> tlp::Observable::observersList`[protected]`

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