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