docs/latex/wx/weakref.tex

   1 \section{\class{wxWeakRef<T>}}\label{wxweakref}
   2
   3 A weak reference to an object of type T, where T has type
   4 \helpref{wxTrackableBase}{wxTrackableBase} as one of its
   5 base classes  (in a static or dynamic sense).
   6
   7 \begin{verbatim}
   8 class MyClass: public Foo, public TrackableBase
   9 {
  10    // whatever
  11 }
  12
  13 typedef wxWeakRef<MyClass> MyClassRef;
  14 \end{verbatim}
  15
  16 \wxheading{Derived from}
  17
  18 wxTrackerNode
  19
  20 \wxheading{Include files}
  21
  22 <weakref.h>
  23
  24 \wxheading{Data structures}
  25
  26 \latexignore{\rtfignore{\wxheading{Members}}}
  27
  28
  29 \membersection{wxWeakRef<T>::wxWeakRef<T>}\label{wxweakrefwxweakref}
  30
  31 \func{}{wxWeakRef<T>}{\param{T* }{pobj = NULL}}
  32
  33 Constructor.
  34
  35 \membersection{wxWeakRef<T>::\destruct{wxWeakRef<T>}}\label{wxweakrefdtor}
  36
  37 \func{}{\destruct{wxWeakRef<T>}}{\void}
  38
  39 Destructor.
  40
  41 \membersection{wxWeakRef<T>::T*}\label{wxweakreft}
  42
  43 \func{operator}{T*}{\void}
  44
  45 Returns pointer to tracked object or NULL.
  46
  47 \membersection{wxWeakRef<T>::operator->}\label{wxweakrefoperatorderef}
  48
  49 \func{T*}{operator->}{\void}
  50
  51 Returns pointer to tracked object or NULL.
  52
  53 \membersection{wxWeakRef<T>::operator=}\label{wxweakrefoperatorassign}
  54
  55 \func{T* operator}{operator=}{\param{T* }{pobj}}
  56
  57 Assigns pointer to trackable object to this weak reference.
  58
  59 \membersection{wxWeakRef<T>::Assign}\label{wxweakrefassign}
  60
  61 \func{void}{Assign}{\param{T* }{pobj}}
  62
  63 This uses static\_cast if possible or dynamic\_cast otherwise.
  64
  65 \membersection{wxWeakRef<T>::GetTrackable}\label{wxweakrefgettrackable}
  66
  67 \func{wxTrackableBase*}{GetTrackable}{\param{T* }{pobj}}
  68
  69 Returns the trackable objects to which the weak reference
  70 points or NULL if it has been destroyed.
  71
  72 \membersection{wxWeakRef<T>::OnObjectDestroy}\label{wxweakrefonobjectdestroy}
  73
  74 \func{virtual void}{OnObjectDestroy}{\void}
  75
  76 Called when the tracked object is destroyed. Be default sets
  77 internal pointer to NULL.
  78