1 /* 2 File: CACFNumber.h 3 Abstract: Part of CoreAudio Utility Classes 4 Version: 1.1 5 6 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple 7 Inc. ("Apple") in consideration of your agreement to the following 8 terms, and your use, installation, modification or redistribution of 9 this Apple software constitutes acceptance of these terms. 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APPLE 30 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION 31 THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS 32 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND 33 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. 34 35 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL 36 OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 37 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 38 INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, 39 MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED 40 AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), 41 STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE 42 POSSIBILITY OF SUCH DAMAGE. 43 44 Copyright (C) 2014 Apple Inc. All Rights Reserved. 45 46 */ 47 #if !defined(__CACFNumber_h__) 48 #define __CACFNumber_h__ 49 50 //============================================================================= 51 // Includes 52 //============================================================================= 53 54 #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) 55 #include <CoreAudio/CoreAudioTypes.h> 56 #include <CoreFoundation/CFNumber.h> 57 #else 58 #include <CoreAudioTypes.h> 59 #include <CFNumber.h> 60 #endif 61 62 //============================================================================= 63 // CACFBoolean 64 //============================================================================= 65 66 class CACFBoolean 67 { 68 // Construction/Destruction 69 public: CACFBoolean(CFBooleanRef inCFBoolean)70 explicit CACFBoolean(CFBooleanRef inCFBoolean) : mCFBoolean(inCFBoolean), mWillRelease(true) {} CACFBoolean(CFBooleanRef inCFBoolean,bool inWillRelease)71 CACFBoolean(CFBooleanRef inCFBoolean, bool inWillRelease) : mCFBoolean(inCFBoolean), mWillRelease(inWillRelease) {} CACFBoolean(bool inValue)72 explicit CACFBoolean(bool inValue) : mCFBoolean(inValue ? kCFBooleanTrue : kCFBooleanFalse), mWillRelease(true) { Retain(); } ~CACFBoolean()73 ~CACFBoolean() { Release(); } CACFBoolean(const CACFBoolean & inBoolean)74 CACFBoolean(const CACFBoolean& inBoolean) : mCFBoolean(inBoolean.mCFBoolean), mWillRelease(inBoolean.mWillRelease) { Retain(); } 75 CACFBoolean& operator=(const CACFBoolean& inBoolean) { Release(); mCFBoolean = inBoolean.mCFBoolean; mWillRelease = inBoolean.mWillRelease; Retain(); return *this; } 76 CACFBoolean& operator=(CFBooleanRef inCFBoolean) { Release(); mCFBoolean = inCFBoolean; mWillRelease = true; return *this; } 77 78 private: Retain()79 void Retain() { if(mWillRelease && (mCFBoolean != NULL)) { CFRetain(mCFBoolean); } } Release()80 void Release() { if(mWillRelease && (mCFBoolean != NULL)) { CFRelease(mCFBoolean); } } 81 82 CFBooleanRef mCFBoolean; 83 bool mWillRelease; 84 85 // Operations 86 public: AllowRelease()87 void AllowRelease() { mWillRelease = true; } DontAllowRelease()88 void DontAllowRelease() { mWillRelease = false; } IsValid()89 bool IsValid() { return mCFBoolean != NULL; } 90 91 // Value Access 92 public: GetCFBoolean()93 CFBooleanRef GetCFBoolean() const { return mCFBoolean; } CopyCFBoolean()94 CFBooleanRef CopyCFBoolean() const { if(mCFBoolean != NULL) { CFRetain(mCFBoolean); } return mCFBoolean; } 95 GetBoolean()96 bool GetBoolean() const { bool theAnswer = false; if(mCFBoolean != NULL) { theAnswer = CFEqual(mCFBoolean, kCFBooleanTrue); } return theAnswer; } 97 98 CACFBoolean(const void*); // prevent accidental instantiation with a pointer via bool constructor 99 }; 100 101 //============================================================================= 102 // CACFNumber 103 //============================================================================= 104 105 class CACFNumber 106 { 107 // Construction/Destruction 108 public: CACFNumber(CFNumberRef inCFNumber)109 explicit CACFNumber(CFNumberRef inCFNumber) : mCFNumber(inCFNumber), mWillRelease(true) {} CACFNumber(CFNumberRef inCFNumber,bool inWillRelease)110 CACFNumber(CFNumberRef inCFNumber, bool inWillRelease) : mCFNumber(inCFNumber), mWillRelease(inWillRelease) {} CACFNumber(SInt32 inValue)111 CACFNumber(SInt32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt32Type, &inValue)), mWillRelease(true) {} CACFNumber(UInt32 inValue)112 CACFNumber(UInt32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt32Type, &inValue)), mWillRelease(true) {} CACFNumber(SInt64 inValue)113 CACFNumber(SInt64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt64Type, &inValue)), mWillRelease(true) {} CACFNumber(UInt64 inValue)114 CACFNumber(UInt64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt64Type, &inValue)), mWillRelease(true) {} CACFNumber(Float32 inValue)115 CACFNumber(Float32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberFloat32Type, &inValue)), mWillRelease(true) {} CACFNumber(Float64 inValue)116 CACFNumber(Float64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberFloat64Type, &inValue)), mWillRelease(true) {} ~CACFNumber()117 ~CACFNumber() { Release(); } CACFNumber(const CACFNumber & inNumber)118 CACFNumber(const CACFNumber& inNumber) : mCFNumber(inNumber.mCFNumber), mWillRelease(inNumber.mWillRelease) { Retain(); } 119 CACFNumber& operator=(const CACFNumber& inNumber) { Release(); mCFNumber = inNumber.mCFNumber; mWillRelease = inNumber.mWillRelease; Retain(); return *this; } 120 CACFNumber& operator=(CFNumberRef inCFNumber) { Release(); mCFNumber = inCFNumber; mWillRelease = true; return *this; } 121 122 private: Retain()123 void Retain() { if(mWillRelease && (mCFNumber != NULL)) { CFRetain(mCFNumber); } } Release()124 void Release() { if(mWillRelease && (mCFNumber != NULL)) { CFRelease(mCFNumber); } } 125 126 CFNumberRef mCFNumber; 127 bool mWillRelease; 128 129 // Operations 130 public: AllowRelease()131 void AllowRelease() { mWillRelease = true; } DontAllowRelease()132 void DontAllowRelease() { mWillRelease = false; } IsValid()133 bool IsValid() const { return mCFNumber != NULL; } 134 135 // Value Access 136 public: GetCFNumber()137 CFNumberRef GetCFNumber() const { return mCFNumber; } CopyCFNumber()138 CFNumberRef CopyCFNumber() const { if(mCFNumber != NULL) { CFRetain(mCFNumber); } return mCFNumber; } 139 GetSInt8()140 SInt8 GetSInt8() const { SInt8 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt8Type, &theAnswer); } return theAnswer; } GetSInt32()141 SInt32 GetSInt32() const { SInt32 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt32Type, &theAnswer); } return theAnswer; } GetUInt32()142 UInt32 GetUInt32() const { UInt32 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt32Type, &theAnswer); } return theAnswer; } GetFloat32()143 Float32 GetFloat32() const { Float32 theAnswer = 0.0f; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberFloat32Type, &theAnswer); } return theAnswer; } 144 Float32 GetFixed32() const; 145 Float64 GetFixed64() const; GetSInt64()146 SInt64 GetSInt64() const { SInt64 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt64Type, &theAnswer); } return theAnswer; } 147 148 CACFNumber(const void*); // prevent accidental instantiation with a pointer via bool constructor 149 }; 150 151 #endif 152