LibreOffice Module vcl (master)  1
vclreferencebase.hxx
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19 #ifndef INCLUDED_VCL_Reference_HXX
20 #define INCLUDED_VCL_Reference_HXX
21 
22 #include <vcl/dllapi.h>
23 #include <osl/interlck.h>
24 
25 class VclBuilder;
26 
28 {
29  mutable oslInterlockedCount mnRefCnt;
30 
31  template<typename T> friend class VclPtr;
32  friend class ::VclBuilder; // needed by ::delete_by_window(vcl::Window *pWindow)
33 
34 public:
35  void acquire() const
36  {
37  osl_atomic_increment(&mnRefCnt);
38  }
39 
40  void release() const
41  {
42  if (osl_atomic_decrement(&mnRefCnt) == 0)
43  delete this;
44  }
45 #ifdef DBG_UTIL
46 #ifndef _WIN32
47  sal_Int32 getRefCount() const { return mnRefCnt; }
48 #endif
49 #endif
50 
51 
52 private:
53  VclReferenceBase(const VclReferenceBase&) = delete;
55 
56  bool mbDisposed : 1;
57 
58 protected:
60  virtual ~VclReferenceBase();
61 
62  // This is only supposed to be called from disposeOnce
63  virtual void dispose();
64 
65 public:
66  // This is normally supposed to be called from VclPtr::disposeAndClear
67  void disposeOnce();
68 
69  bool isDisposed() const { return mbDisposed; }
70 
71 };
72 #endif
VclPtr & operator=(VclPtr const &)=default
A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for refer...
Definition: button.hxx:34
#define VCL_DLLPUBLIC
Definition: dllapi.h:29
Creates a hierarchy of vcl::Windows (widgets) from a .ui file for dialogs, sidebar, etc.
Definition: builder.hxx:66
void acquire() const
sal_Int32 getRefCount() const
void release() const
oslInterlockedCount mnRefCnt
void dispose()
bool isDisposed() const