mimetmac.cpp

wxWidgets 是一个跨平台的 GUI 框架。它给开发人员提供了统一的接口

// ----------------------------------------------------------------------------
// wxCFDictionary
// ----------------------------------------------------------------------------

class wxCFDictionary
{
public:
    wxCFDictionary(CFTypeRef ref, bool bRetain = wxCF_RELEASE)
    {
        m_cfmdRef = (CFMutableDictionaryRef) ref;
        if (bRetain == wxCF_RETAIN && ref)
            CFRetain(ref);
    }

    wxCFDictionary(CFIndex cfiSize = 0)
    {
        CFDictionaryKeyCallBacks kcbs;
        CFDictionaryValueCallBacks vcbs;
        BuildKeyCallbacks(&kcbs);
        BuildValueCallbacks(&vcbs);

        m_cfmdRef = CFDictionaryCreateMutable(
            kCFAllocatorDefault, cfiSize, &kcbs, &vcbs );
    }

    ~wxCFDictionary()
    { Clear(); }

    void Clear()
    {
        if (m_cfmdRef)
            CFRelease(m_cfmdRef);
    }

    static const void* RetainProc(CFAllocatorRef, const void* v)
    { return (const void*) CFRetain(v); }

    static void ReleaseProc(CFAllocatorRef, const void* v)
    { CFRelease(v); }

    void MakeMutable(CFIndex cfiSize = 0)
    {
        CFDictionaryRef oldref = (CFDictionaryRef) m_cfmdRef;

        m_cfmdRef = CFDictionaryCreateMutableCopy(
            kCFAllocatorDefault, cfiSize, oldref );

        CFRelease( oldref );
    }

    void BuildKeyCallbacks(CFDictionaryKeyCallBacks* pCbs)
    {
        pCbs->version = 0;
        pCbs->retain = RetainProc;
        pCbs->release = ReleaseProc;
        pCbs->copyDescription = NULL;
        pCbs->equal = NULL;
        pCbs->hash = NULL;
    }

    void BuildValueCallbacks(CFDictionaryValueCallBacks* pCbs)
    {
        pCbs->version = 0;
        pCbs->retain = RetainProc;
        pCbs->release = ReleaseProc;
        pCbs->copyDescription = NULL;
        pCbs->equal = NULL;
    }

    operator CFTypeRef () const
    { return (CFTypeRef)m_cfmdRef; }

    CFDictionaryRef GetCFDictionary() const
    { return (CFDictionaryRef)m_cfmdRef; }

    CFMutableDictionaryRef GetCFMutableDictionary()
    { return (CFMutableDictionaryRef) m_cfmdRef; }

    CFTypeRef operator [] (CFTypeRef cftEntry) const
    {
        wxASSERT(IsValid());
        return (CFTypeRef) CFDictionaryGetValue((CFDictionaryRef)m_cfmdRef, cftEntry);
    }

    CFIndex GetCount() const
    {
        wxASSERT(IsValid());
        return CFDictionaryGetCount((CFDictionaryRef)m_cfmdRef);
    }

    void Add(CFTypeRef cftKey, CFTypeRef cftValue)
    {
        wxASSERT(IsValid());
        wxASSERT(Exists(cftKey) == false);
        CFDictionaryAddValue(m_cfmdRef, cftKey, cftValue);
    }

    void Remove(CFTypeRef cftKey)
    {
        wxASSERT(IsValid());
        wxASSERT(Exists(cftKey));
        CFDictionaryRemoveValue(m_cfmdRef, cftKey);
    }

    void Set(CFTypeRef cftKey, CFTypeRef cftValue)
    {
        wxASSERT(IsValid());
        wxASSERT(Exists(cftKey));
        CFDictionarySetValue(m_cfmdRef, cftKey, cftValue);
    }

    bool Exists(CFTypeRef cftKey) const
    {
        wxASSERT(IsValid());
        return CFDictionaryContainsKey((CFDictionaryRef)m_cfmdRef, cftKey);
    }

    bool IsOk() const
    { return m_cfmdRef != NULL; }

    bool IsValid() const
    { return IsOk() && CFGetTypeID((CFTypeRef)m_cfmdRef) == CFDictionaryGetTypeID(); }

    void PrintOut(wxString& sMessage)
    {
        PrintOutDictionary(sMessage, m_cfmdRef);
    }

    static void PrintOutDictionary(wxString& sMessage, CFDictionaryRef cfdRef)
    {
        CFIndex cfiCount = CFDictionaryGetCount(cfdRef);
        CFTypeRef* pKeys = new CFTypeRef[cfiCount];
        CFTypeRef* pValues = new CFTypeRef[cfiCount];

        CFDictionaryGetKeysAndValues(cfdRef, pKeys, pValues);

        for (CFIndex i = 0; i < cfiCount; ++i)
        {
            wxString sKey = wxMacCFStringHolder(CFCopyTypeIDDescription(CFGetTypeID(pKeys[i]))).AsString();
            wxString sValue = wxMacCFStringHolder(CFCopyTypeIDDescription(CFGetTypeID(pValues[i]))).AsString();

            sMessage <<
                wxString::Format(wxT("[{#%d} Key : %s]"), (int) i,
                        sKey.c_str());

            PrintOutType(sMessage, sKey, pKeys[i]);

            sMessage <<
                wxString::Format(wxT("\n\t[Value : %s]"),
                        sValue.c_str());

            PrintOutType(sMessage, sValue, pValues[i]);

            sMessage << wxT("\n");
        }

        delete [] pKeys;
        delete [] pValues;
    }

    static void PrintOutArray(wxString& sMessage, CFArrayRef cfaRef)
    {
        for (CFIndex i = 0; i < CFArrayGetCount(cfaRef); ++i)
        {
            wxString sValue = wxMacCFStringHolder(CFCopyTypeIDDescription(CFGetTypeID(
                CFArrayGetValueAtIndex(cfaRef, i)
                ))).AsString();

            sMessage <<
                wxString::Format(wxT("\t\t[{#%d} ArrayValue : %s]\n"), (int) i,
                        sValue.c_str());

            PrintOutType(sMessage, sValue, CFArrayGetValueAtIndex(cfaRef, i));
        }
    }

    static void PrintOutType(wxString& sMessage, const wxString& sValue, CFTypeRef cfRef)
    {
            sMessage << wxT(" {");

            if (sValue == wxT("CFString"))
            {
                 sMessage << wxMacCFStringHolder((CFStringRef)cfRef, false).AsString();
            }
            else if (sValue == wxT("CFNumber"))
            {
                int nOut;
                CFNumberGetValue((CFNumberRef)cfRef, kCFNumberIntType, &nOut);
                sMessage << nOut;
            }
            else if (sValue == wxT("CFDictionary"))
            {
                PrintOutDictionary(sMessage, (CFDictionaryRef)cfRef);
            }
            else if (sValue == wxT("CFArray"))
            {
                PrintOutArray(sMessage, (CFArrayRef)cfRef);
            }
            else if (sValue == wxT("CFBoolean"))
            {
                sMessage << (cfRef == kCFBooleanTrue ? wxT("true") : wxT("false"));
            }
            else if (sValue == wxT("CFURL"))
            {
                sMessage << wxMacCFStringHolder(CFURLCopyPath((CFURLRef) cfRef)).AsString();
            }
            else
            {
                sMessage << wxT("*****UNKNOWN TYPE******");
            }

            sMessage << wxT("} ");
    }

#if wxUSE_MIMETYPE
    void MakeValidXML();
#endif

    CFTypeRef WriteAsXML()
    {
        return CFPropertyListCreateXMLData(kCFAllocatorDefault, m_cfmdRef);
    }

    bool ReadAsXML(CFTypeRef cfData, wxString* pErrorMsg = NULL)
    {
        Clear();
        CFStringRef cfsError=NULL;
        m_cfmdRef = (CFMutableDictionaryRef) CFPropertyListCreateFromXMLData(
                    kCFAllocatorDefault,
                    (CFDataRef)cfData,
                    kCFPropertyListMutableContainersAndLeaves,
                    &cfsError );
        if (cfsError)
        {
            if (pErrorMsg)
                *pErrorMsg = wxMacCFStringHolder(cfsError).AsString();
            else
                CFRelease(cfsError);
        }

        return m_cfmdRef != NULL;
    }

private:
    CFMutableDictionaryRef m_cfmdRef;
};

// ----------------------------------------------------------------------------
// wxCFArray
// ----------------------------------------------------------------------------

class wxCFArray
{
public:
    wxCFArray(CFTypeRef ref, bool bRetain = wxCF_RELEASE)
    {
        m_cfmaRef = (CFMutableArrayRef)ref;
        if (bRetain == wxCF_RETAIN && ref)
            CFRetain(ref);
    }

    wxCFArray(CFIndex cfiSize = 0) : m_cfmaRef(NULL)
    { Create(cfiSize); }

    ~wxCFArray()
    { Clear(); }

    void MakeMutable(CFIndex cfiSize = 0)
    {
        wxASSERT(IsValid());

        CFMutableArrayRef oldref = m_cfmaRef;
        m_cfmaRef = CFArrayCreateMutableCopy(
                kCFAllocatorDefault,
                cfiSize,
                (CFArrayRef)oldref);
        CFRelease(oldref);
    }

    void BuildCallbacks(CFArrayCallBacks* pCbs)
    {
        pCbs->version = 0;
        pCbs->retain = RetainProc;
        pCbs->release = ReleaseProc;
        pCbs->copyDescription = NULL;
        pCbs->equal = NULL;
    }

    void Create(CFIndex cfiSize = 0)
    {
        Clear();
        CFArrayCallBacks cb;
        BuildCallbacks(&cb);

        m_cfmaRef = CFArrayCreateMutable(kCFAllocatorDefault, cfiSize, &cb);
    }

    void Clear()
    { if (m_cfmaRef) CFRelease(m_cfmaRef); }

    static const void* RetainProc(CFAllocatorRef, const void* v)
    { return (const void*) CFRetain(v); }

    static void ReleaseProc(CFAllocatorRef, const void* v)
    { CFRelease(v); }

    operator CFTypeRef () const
    { return (CFTypeRef)m_cfmaRef; }

    CFArrayRef GetCFArray() const
    { return (CFArrayRef)m_cfmaRef; }

    CFMutableArrayRef GetCFMutableArray()
    { return (CFMutableArrayRef) m_cfmaRef; }

    CFTypeRef operator [] (CFIndex cfiIndex) const
    {
        wxASSERT(IsValid());
        return (CFTypeRef) CFArrayGetValueAtIndex((CFArrayRef)m_cfmaRef, cfiIndex);
    }

    CFIndex GetCount()
    {
        wxASSERT(IsValid());
        return CFArrayGetCount((CFArrayRef)m_cfmaRef);
    }

    void Add(CFTypeRef cftValue)
    {
        wxASSERT(IsValid());
        CFArrayAppendValue(m_cfmaRef, cftValue);
    }

    void Remove(CFIndex cfiIndex)
    {
        wxASSERT(IsValid());
        wxASSERT(cfiIndex < GetCount());
        CFArrayRemoveValueAtIndex(m_cfmaRef, cfiIndex);
    }

    void Set(CFIndex cfiIndex, CFTypeRef cftValue)
    {
        wxASSERT(IsValid());
        wxASSERT(cfiIndex < GetCount());
        CFArraySetValueAtIndex(m_cfmaRef, cfiIndex, cftValue);
    }

    bool IsOk() const
    { return m_cfmaRef != NULL; }

    bool IsValid() const
    {
        return IsOk() && CFGetTypeID((CFTypeRef)m_cfmaRef) == CFArrayGetTypeID();
    }

#if wxUSE_MIMETYPE
    void MakeValidXML();
#endif

private:
    CFMutableArrayRef m_cfmaRef;
};

// ----------------------------------------------------------------------------
// wxCFString
// ----------------------------------------------------------------------------

class wxCFString
{
public:
    wxCFString(CFTypeRef ref, bool bRetain = wxCF_RELEASE) : m_Holder((CFStringRef)ref, bRetain == wxCF_RELEASE)
    {}

    wxCFString(const wxChar* szString) : m_Holder(wxString(szString), wxLocale::GetSystemEncoding())
    {}

    wxCFString(const wxString& sString) : m_Holder(sString, wxLocale::GetSystemEncoding())
    {}

    virtual ~wxCFString() {}

    operator CFTypeRef() const
    { return (CFTypeRef) ((CFStringRef) m_Holder); }

    bool IsOk()
    { return ((CFTypeRef)(*this)) != NULL; }

    wxString BuildWXString()
    { return m_Holder.AsString(); }

private:
    wxMacCFStringHolder m_Holder;
};

// ----------------------------------------------------------------------------
// wxCFNumber
// ----------------------------------------------------------------------------

class wxCFNumber
{
public:
    wxCFNumber(int nValue)
    {
        m_cfnRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &nValue);
    }

    wxCFNumber(CFTypeRef ref, bool bRetain = wxCF_RELEASE) : m_cfnRef((CFNumberRef)ref)
    {
        if (bRetain == wxCF_RETAIN && ref)
            CFRetain(ref);
    }

    virtual ~wxCFNumber()
    {