/*

     File: CAComponent.cpp 

 Abstract:  CAComponent.h  

  Version: 1.01 

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*/

#include "CAComponent.h"

#include "CAComponentDescription.h"

#include "CACFDictionary.h"

#include <stdlib.h>

#include "CAAutoDisposer.h"

CAComponent::CAComponent (const AudioComponentDescription& inDesc, CAComponent* next)

    : mManuName(0), mAUName(0), mCompName(0)

{

    mComp = AudioComponentFindNext ((next ? next->Comp() : NULL), &inDesc);

    if (mComp)

        AudioComponentGetDescription(Comp(), &mDesc);

    else

        memcpy (&mDesc, &inDesc, sizeof(AudioComponentDescription));

}

CAComponent::CAComponent (const AudioComponent& comp) 

    : mComp (comp),

      mManuName(0), 

      mAUName(0), 

      mCompName(0)

{

    AudioComponentGetDescription (Comp(), &mDesc);

}

CAComponent::CAComponent (const AudioComponentInstance& compInst) 

    : mComp (NULL), 

      mManuName(0), 

      mAUName(0), 

      mCompName(0)

{ 

    mComp = AudioComponentInstanceGetComponent (compInst);

    AudioComponentGetDescription (Comp(), &mDesc);

}

CAComponent::CAComponent (OSType inType, OSType inSubtype, OSType inManu)

    : mDesc (inType, inSubtype, inManu),

      mManuName(0), mAUName(0), mCompName(0)

{

    mComp = AudioComponentFindNext (NULL, &mDesc);

    AudioComponentGetDescription (Comp(), &mDesc);

}

CAComponent::~CAComponent ()

{

    Clear();

}

OSStatus        CAComponent::GetVersion (UInt32 &outVersion) const

{

    return AudioComponentGetVersion (mComp, &outVersion);

}

void            CAComponent::Clear ()

{

    if (mManuName) { CFRelease (mManuName); mManuName = 0; }

    if (mAUName) { CFRelease (mAUName);  mAUName = 0; }

    if (mCompName) { CFRelease (mCompName); mCompName = 0; }

}

CAComponent&    CAComponent::operator= (const CAComponent& y)

{

    Clear();

    mComp = y.mComp;

    mDesc = y.mDesc;

    if (y.mManuName) { mManuName = y.mManuName; CFRetain (mManuName); }

    if (y.mAUName) { mAUName = y.mAUName; CFRetain (mAUName); }

    if (y.mCompName) { mCompName = y.mCompName; CFRetain (mCompName); } 

    return *this;

}

void        CAComponent::SetCompNames () const

{

    if (!mCompName) {

        CFStringRef compName;

        OSStatus result = AudioComponentCopyName (Comp(), &compName);

        if (result) return;

        const_cast<CAComponent*>(this)->mCompName = compName;

        if (compName)

        {

            CFArrayRef splitStrArray = CFStringCreateArrayBySeparatingStrings(NULL, compName, CFSTR(":"));

            // we need to retain these values so the strings are not lost when the array is released

            const_cast<CAComponent*>(this)->mManuName = (CFStringRef)CFArrayGetValueAtIndex(splitStrArray, 0);

            CFRetain(this->mManuName);

            if (CFArrayGetCount(splitStrArray) > 1)

            {

                CFStringRef str = (CFStringRef)CFArrayGetValueAtIndex(splitStrArray, 1);

                CFMutableStringRef mstr = CFStringCreateMutableCopy (NULL, CFStringGetLength(str), str);

                // this needs to trim out white space:

                CFStringTrimWhitespace (mstr);

                const_cast<CAComponent*>(this)->mAUName = mstr;

            } else

                const_cast<CAComponent*>(this)->mAUName = NULL;

            CFRelease(splitStrArray);

        }

    }

}

static void _ShowCF (FILE* file, CFStringRef str)

{

    if (CFGetTypeID(str) != CFStringGetTypeID()) {

        CFShow(str);

        return;

    }

    UInt32 len = CFStringGetLength(str);

    char* chars = (char*)CA_malloc (len * 2); // give us plenty of room for unichar chars

    if (CFStringGetCString (str, chars, len * 2, kCFStringEncodingUTF8))

        fprintf (file, "%s", chars);

    else

        CFShow (str);

    free (chars);

}

void    CAComponent::Print(FILE* file) const

{

    fprintf (file, "CAComponent: %p", Comp());

    if (mManuName) {

        fprintf (file, ", Manu:"); _ShowCF (file, mManuName);

        if (mAUName) fprintf (file, ", Name:"); _ShowCF (file, mAUName);

    }

    fprintf (file, ", "); 

    Desc ().Print(file);

}