138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/osx/core/cfdictionaryref.h
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// Purpose: wxCFDictionaryRef class
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// Author: Stefan Csomor
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// Modified by:
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// Created: 2018/07/27
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// Copyright: (c) 2018 Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/*! @header wx/osx/core/cfdictionaryref.h
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@abstract wxCFDictionaryRef class
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*/
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#ifndef _WX_OSX_COREFOUNDATION_CFDICTIONARYREF_H__
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#define _WX_OSX_COREFOUNDATION_CFDICTIONARYREF_H__
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#include "wx/osx/core/cfref.h"
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#include "wx/osx/core/cfstring.h"
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#include "wx/osx/core/cftype.h"
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#include <CoreFoundation/CFDictionary.h>
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/*! @class wxCFDictionaryRef
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@discussion Properly retains/releases reference to CoreFoundation data objects
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*/
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template <typename T>
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class wxCFDictionaryRefCommon : public wxCFRef<T>
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{
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public:
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typedef wxCFRef<T> super_type;
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explicit wxCFDictionaryRefCommon()
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: super_type()
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{
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}
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/*! @method wxCFDictionaryRef
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@abstract Assumes ownership of r and creates a reference to it.
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@param r The dictionary reference to assume ownership of. May be NULL.
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@discussion Like shared_ptr, it is assumed that the caller has a strong reference to r and intends
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to transfer ownership of that reference to this ref holder. If the object comes from
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a Create or Copy method then this is the correct behaviour. If the object comes from
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a Get method then you must CFRetain it yourself before passing it to this constructor.
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A handy way to do this is to use the non-member wxCFRefFromGet factory function.
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This method is templated and takes an otherType *p. This prevents implicit conversion
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using an operator refType() in a different ref-holding class type.
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*/
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explicit wxCFDictionaryRefCommon(T r)
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: super_type(r)
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{
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}
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/*! @method wxCFDictionaryRef
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@abstract Copies a ref holder of the same type
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@param otherRef The other ref holder to copy.
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@discussion Ownership will be shared by the original ref and the newly created ref. That is,
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the object will be explicitly retained by this new ref.
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*/
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wxCFDictionaryRefCommon(const wxCFDictionaryRefCommon&) = default;
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wxCFTypeRef GetValue(const void* key)
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{
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CFTypeRef val = CFDictionaryGetValue(this->m_ptr, key);
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if (val)
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::CFRetain(val);
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return val;
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}
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};
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class wxCFMutableDictionaryRef;
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class wxCFDictionaryRef : public wxCFDictionaryRefCommon<CFDictionaryRef>
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{
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public:
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wxCFDictionaryRef()
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{
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}
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wxCFDictionaryRef(CFDictionaryRef r)
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: wxCFDictionaryRefCommon(r)
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{
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}
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wxCFDictionaryRef& operator=(const wxCFMutableDictionaryRef& other);
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CFDictionaryRef CreateCopy() const
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{
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return CFDictionaryCreateCopy(kCFAllocatorDefault, this->m_ptr);
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}
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CFMutableDictionaryRef CreateMutableCopy() const
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{
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return CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, this->m_ptr);
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}
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};
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class wxCFMutableDictionaryRef : public wxCFDictionaryRefCommon<CFMutableDictionaryRef>
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{
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public:
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wxCFMutableDictionaryRef()
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: wxCFDictionaryRefCommon(CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))
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{
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}
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wxCFMutableDictionaryRef(CFMutableDictionaryRef r)
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: wxCFDictionaryRefCommon(r)
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{
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}
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void SetValue(const void* key, const void* data)
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{
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CFDictionarySetValue(this->m_ptr, key, data);
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}
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void SetValue(const void* key, CGFloat v)
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{
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SetValue(key, wxCFNumberRef(v));
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}
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CFMutableDictionaryRef CreateCopy() const
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{
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return CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, this->m_ptr);
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}
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friend class wxCFDictionaryRef;
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};
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inline wxCFDictionaryRef& wxCFDictionaryRef::operator=(const wxCFMutableDictionaryRef& otherRef)
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{
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wxCFRetain(otherRef.m_ptr);
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wxCFRelease(m_ptr);
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m_ptr = (CFDictionaryRef)otherRef.m_ptr;
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return *this;
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}
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#endif //ifndef _WX_OSX_COREFOUNDATION_CFDICTIONARYREF_H__
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