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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.cpp =============================================================================*/ #include "CAComponent.h" #include "CAComponentDescription.h" #include "CACFDictionary.h" #include CAComponent::CAComponent (const ComponentDescription& inDesc, CAComponent* next) : mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) { mComp = FindNextComponent ((next ? next->Comp() : NULL), const_cast(&inDesc)); if (mComp) GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL); else memcpy (&mDesc, &inDesc, sizeof(ComponentDescription)); } CAComponent::CAComponent (const Component& comp) : mComp (comp), mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) { GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL); } CAComponent::CAComponent (const ComponentInstance& compInst) : mComp (Component(compInst)), mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) { GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL); } CAComponent::CAComponent (OSType inType, OSType inSubtype, OSType inManu) : mDesc (inType, inSubtype, inManu), mManuName(0), mAUName(0), mCompName(0), mCompInfo (0) { mComp = FindNextComponent (NULL, &mDesc); GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL); } CAComponent::~CAComponent () { Clear(); } OSStatus CAComponent::GetResourceVersion (UInt32 &outVersion) const { bool versionFound = false; ResFileRefNum componentResFileID = kResFileNotOpened; OSStatus result; short thngResourceCount; short curRes = CurResFile(); require_noerr (result = OpenAComponentResFile( mComp, &componentResFileID), home); require_noerr (result = componentResFileID <= 0, home); UseResFile(componentResFileID); thngResourceCount = Count1Resources(kComponentResourceType); require_noerr (result = ResError(), home); // only go on if we successfully found at least 1 thng resource require_noerr (thngResourceCount <= 0 ? -1 : 0, home); // loop through all of the Component thng resources trying to // find one that matches this Component description for (short i = 0; i < thngResourceCount && (!versionFound); i++) { // try to get a handle to this code resource Handle thngResourceHandle = Get1IndResource(kComponentResourceType, i+1); if (thngResourceHandle != NULL && ((*thngResourceHandle) != NULL)) { if (UInt32(GetHandleSize(thngResourceHandle)) >= sizeof(ExtComponentResource)) { ExtComponentResource * componentThng = (ExtComponentResource*) (*thngResourceHandle); // check to see if this is the thng resource for the particular Component that we are looking at // (there often is more than one Component described in the resource) if ((componentThng->cd.componentType == mDesc.Type()) && (componentThng->cd.componentSubType == mDesc.SubType()) && (componentThng->cd.componentManufacturer == mDesc.Manu())) { outVersion = componentThng->componentVersion; versionFound = true; } } ReleaseResource(thngResourceHandle); } } if (!versionFound) result = resNotFound; UseResFile(curRes); // revert if ( componentResFileID != kResFileNotOpened ) CloseComponentResFile(componentResFileID); home: return result; } void CAComponent::Clear () { if (mManuName) { CFRelease (mManuName); mManuName = 0; } if (mAUName) { CFRelease (mAUName); mAUName = 0; } if (mCompName) { CFRelease (mCompName); mCompName = 0; } if (mCompInfo) { CFRelease (mCompInfo); mCompInfo = 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); } if (y.mCompInfo) { mCompInfo = y.mCompInfo; CFRetain (mCompInfo); } return *this; } void CAComponent::SetCompNames () const { if (!mCompName) { Handle h1 = NewHandle(4); CAComponentDescription desc; OSStatus err = GetComponentInfo (Comp(), &desc, h1, 0, 0); if (err) { DisposeHandle(h1); return; } HLock(h1); char* ptr1 = *h1; // Get the manufacturer's name... look for the ':' character convention int len = *ptr1++; char* displayStr = 0; const_cast(this)->mCompName = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman); for (int i = 0; i < len; ++i) { if (ptr1[i] == ':') { // found the name ptr1[i] = 0; displayStr = ptr1; break; } } if (displayStr) { const_cast(this)->mManuName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman); //move displayStr ptr past the manu, to the name // we move the characters down a index, because the handle doesn't have any room // at the end for the \0 int i = strlen(displayStr), j = 0; while (displayStr[++i] == ' ' && i < len) ; while (i < len) displayStr[j++] = displayStr[i++]; displayStr[j] = 0; const_cast(this)->mAUName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman); } DisposeHandle (h1); } } void CAComponent::SetCompInfo () const { if (!mCompInfo) { Handle h1 = NewHandle(4); CAComponentDescription desc; OSStatus err = GetComponentInfo (Comp(), &desc, 0, h1, 0); if (err) return; HLock (h1); const_cast(this)->mCompInfo = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman); DisposeHandle (h1); } } void _ShowCF (FILE* file, CFStringRef str) { if (CFGetTypeID(str) != CFStringGetTypeID()) { CFShow(str); return; } UInt32 len = CFStringGetLength(str); char* chars = (char*)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", (void*)Comp()); if (mManuName) { fprintf (file, ", Manu:"); _ShowCF (file, mManuName); if (mAUName) fprintf (file, ", Name:"); _ShowCF (file, mAUName); } fprintf (file, ", "); Desc ().Print(file); }