4f4c5fcfdf
This is a combination of running clang-tidy with modernize-use-nullptr check for some ports (GTK, X11, OSX) and manual changes to the ports for which it couldn't be used easily (MSW, DFB) and also manually updating the docs. Also replace NULL with null or nullptr in the comments as this is more consistent with the use of nullptr in the code and makes it simpler to grep for the remaining occurrences of NULL itself. And also use null in the assert messages. Only a few occurrences of "NULL" are still left in non-C files, mostly corresponding to unclear comments or string output which it might not be safe to change.
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/dfb/dfbptr.h
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// Purpose: wxDfbPtr<T> for holding objects declared in wrapdfb.h
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// Author: Vaclav Slavik
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// Created: 2006-08-09
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// Copyright: (c) 2006 REA Elektronik GmbH
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DFB_DFBPTR_H_
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#define _WX_DFB_DFBPTR_H_
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//-----------------------------------------------------------------------------
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// wxDFB_DECLARE_INTERFACE
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//-----------------------------------------------------------------------------
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/**
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Forward declares wx wrapper around DirectFB interface @a name.
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Also declares wx##name##Ptr typedef for wxDfbPtr<wx##name> pointer.
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@param name name of the DirectFB interface
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*/
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#define wxDFB_DECLARE_INTERFACE(name) \
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class wx##name; \
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typedef wxDfbPtr<wx##name> wx##name##Ptr
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//-----------------------------------------------------------------------------
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// wxDfbPtr<T>
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//-----------------------------------------------------------------------------
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class wxDfbWrapperBase;
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class WXDLLIMPEXP_CORE wxDfbPtrBase
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{
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protected:
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static void DoAddRef(wxDfbWrapperBase *ptr);
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static void DoRelease(wxDfbWrapperBase *ptr);
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};
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/**
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This template implements smart pointer for keeping pointers to DirectFB
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wrappers (i.e. wxIFoo classes derived from wxDfbWrapper<T>). Interface's
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reference count is increased on copying and the interface is released when
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the pointer is deleted.
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*/
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template<typename T>
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class wxDfbPtr : private wxDfbPtrBase
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{
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public:
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/**
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Creates the pointer from raw pointer to the wrapper.
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Takes ownership of @a ptr, i.e. AddRef() is @em not called on it.
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*/
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wxDfbPtr(T *ptr = nullptr) : m_ptr(ptr) {}
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/// Copy ctor
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wxDfbPtr(const wxDfbPtr& ptr) { InitFrom(ptr); }
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/// Dtor. Releases the interface
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~wxDfbPtr() { Reset(); }
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/// Resets the pointer to nullptr, decreasing reference count of the interface.
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void Reset()
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{
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if ( m_ptr )
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{
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this->DoRelease((wxDfbWrapperBase*)m_ptr);
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m_ptr = nullptr;
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}
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}
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/// Cast to the wrapper pointer
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operator T*() const { return m_ptr; }
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// standard operators:
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wxDfbPtr& operator=(T *ptr)
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{
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Reset();
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m_ptr = ptr;
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return *this;
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}
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wxDfbPtr& operator=(const wxDfbPtr& ptr)
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{
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Reset();
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InitFrom(ptr);
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return *this;
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}
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T& operator*() const { return *m_ptr; }
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T* operator->() const { return m_ptr; }
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private:
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void InitFrom(const wxDfbPtr& ptr)
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{
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m_ptr = ptr.m_ptr;
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if ( m_ptr )
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this->DoAddRef((wxDfbWrapperBase*)m_ptr);
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}
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private:
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T *m_ptr;
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};
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#endif // _WX_DFB_DFBPTR_H_
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