121 lines
4.8 KiB
C++
121 lines
4.8 KiB
C++
/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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("Apple") in consideration of your agreement to the following terms, and your
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use, installation, modification or redistribution of this Apple software
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constitutes acceptance of these terms. If you do not agree with these terms,
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please do not use, install, modify or redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and subject
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to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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copyrights in this original Apple software (the "Apple Software"), to use,
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reproduce, modify and redistribute the Apple Software, with or without
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modifications, in source and/or binary forms; provided that if you redistribute
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the Apple Software in its entirety and without modifications, you must retain
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this notice and the following text and disclaimers in all such redistributions of
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the Apple Software. Neither the name, trademarks, service marks or logos of
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Apple Computer, Inc. may be used to endorse or promote products derived from the
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Apple Software without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or implied,
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are granted by Apple herein, including but not limited to any patent rights that
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may be infringed by your derivative works or by other works in which the Apple
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Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*=============================================================================
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CAComponent.h
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=============================================================================*/
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#ifndef __CAComponent_h__
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#define __CAComponent_h__
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#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
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#include <CoreServices/CoreServices.h>
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#else
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#include <ConditionalMacros.h>
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#include <CoreServices.h>
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#endif
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#include "CAComponentDescription.h"
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class CAComponent
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{
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public:
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CAComponent ()
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: mComp (0), mDesc(), mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) {}
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// if next is specifed that is used to find the next component after that one
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CAComponent (const ComponentDescription& inDesc, CAComponent* next = 0);
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CAComponent (const CAComponent& y)
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: mComp (0), mDesc(), mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) { *this = y; }
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CAComponent (const Component& comp);
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CAComponent (const ComponentInstance& compInst);
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CAComponent (OSType inType, OSType inSubtype = 0, OSType inManu = 0);
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~CAComponent ();
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CAComponent& operator= (const CAComponent& y);
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// returns true if this object references a valid component
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bool IsValid () const { return Comp() != 0; }
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bool HasAUStrings() const { SetCompNames (); return mManuName != 0; }
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// CFStringRef should be retained by caller if needed beyond lifetime of this object
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// Can return NULL if component doesn't follow AU naming conventions
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CFStringRef GetAUManu () const { SetCompNames (); return mManuName; }
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CFStringRef GetAUName () const { SetCompNames (); return mAUName ? mAUName : mCompName; }
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// Return value of NULL indicates a problem getting that information from the component
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CFStringRef GetCompName () const { SetCompNames(); return mCompName; }
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CFStringRef GetCompInfo () const { SetCompInfo(); return mCompInfo; }
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const CAComponentDescription& Desc () const { return mDesc; }
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OSStatus Open (ComponentInstance& outInst) const
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{
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return OpenAComponent (Comp(), &outInst);
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}
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OSStatus GetResourceVersion (UInt32 &outVersion) const;
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const Component& Comp() const { return mComp; }
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void Print(FILE* file = stdout) const;
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OSStatus Save (CFPropertyListRef *outData) const;
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OSStatus Restore (CFPropertyListRef &inData);
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private:
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Component mComp;
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CAComponentDescription mDesc;
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CFStringRef mManuName, mAUName, mCompName, mCompInfo;
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void SetCompNames () const;
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void SetCompInfo () const;
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void Clear ();
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};
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#endif
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