258 lines
8.5 KiB
C++
258 lines
8.5 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.cpp
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=============================================================================*/
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#include "CAComponent.h"
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#include "CAComponentDescription.h"
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#include "CACFDictionary.h"
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#include <stdlib.h>
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CAComponent::CAComponent (const ComponentDescription& inDesc, CAComponent* next)
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: mManuName(0), mAUName(0), mCompName(0), mCompInfo (0)
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{
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mComp = FindNextComponent ((next ? next->Comp() : NULL), const_cast<ComponentDescription*>(&inDesc));
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if (mComp)
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GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
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else
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memcpy (&mDesc, &inDesc, sizeof(ComponentDescription));
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}
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CAComponent::CAComponent (const Component& comp)
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: mComp (comp),
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mManuName(0),
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mAUName(0),
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mCompName(0),
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mCompInfo (0)
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{
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GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
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}
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CAComponent::CAComponent (const ComponentInstance& compInst)
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: mComp (Component(compInst)),
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mManuName(0),
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mAUName(0),
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mCompName(0),
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mCompInfo (0)
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{
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GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
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}
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CAComponent::CAComponent (OSType inType, OSType inSubtype, OSType inManu)
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: mDesc (inType, inSubtype, inManu),
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mManuName(0), mAUName(0), mCompName(0), mCompInfo (0)
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{
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mComp = FindNextComponent (NULL, &mDesc);
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GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
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}
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CAComponent::~CAComponent ()
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{
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Clear();
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}
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OSStatus CAComponent::GetResourceVersion (UInt32 &outVersion) const
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{
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bool versionFound = false;
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ResFileRefNum componentResFileID = kResFileNotOpened;
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OSStatus result;
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short thngResourceCount;
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short curRes = CurResFile();
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require_noerr (result = OpenAComponentResFile( mComp, &componentResFileID), home);
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require_noerr (result = componentResFileID <= 0, home);
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UseResFile(componentResFileID);
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thngResourceCount = Count1Resources(kComponentResourceType);
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require_noerr (result = ResError(), home);
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// only go on if we successfully found at least 1 thng resource
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require_noerr (thngResourceCount <= 0 ? -1 : 0, home);
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// loop through all of the Component thng resources trying to
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// find one that matches this Component description
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for (short i = 0; i < thngResourceCount && (!versionFound); i++)
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{
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// try to get a handle to this code resource
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Handle thngResourceHandle = Get1IndResource(kComponentResourceType, i+1);
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if (thngResourceHandle != NULL && ((*thngResourceHandle) != NULL))
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{
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if (UInt32(GetHandleSize(thngResourceHandle)) >= sizeof(ExtComponentResource))
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{
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ExtComponentResource * componentThng = (ExtComponentResource*) (*thngResourceHandle);
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// check to see if this is the thng resource for the particular Component that we are looking at
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// (there often is more than one Component described in the resource)
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if ((componentThng->cd.componentType == mDesc.Type())
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&& (componentThng->cd.componentSubType == mDesc.SubType())
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&& (componentThng->cd.componentManufacturer == mDesc.Manu()))
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{
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outVersion = componentThng->componentVersion;
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versionFound = true;
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}
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}
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ReleaseResource(thngResourceHandle);
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}
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}
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if (!versionFound)
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result = resNotFound;
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UseResFile(curRes); // revert
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if ( componentResFileID != kResFileNotOpened )
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CloseComponentResFile(componentResFileID);
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home:
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return result;
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}
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void CAComponent::Clear ()
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{
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if (mManuName) { CFRelease (mManuName); mManuName = 0; }
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if (mAUName) { CFRelease (mAUName); mAUName = 0; }
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if (mCompName) { CFRelease (mCompName); mCompName = 0; }
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if (mCompInfo) { CFRelease (mCompInfo); mCompInfo = 0; }
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}
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CAComponent& CAComponent::operator= (const CAComponent& y)
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{
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Clear();
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mComp = y.mComp;
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mDesc = y.mDesc;
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if (y.mManuName) { mManuName = y.mManuName; CFRetain (mManuName); }
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if (y.mAUName) { mAUName = y.mAUName; CFRetain (mAUName); }
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if (y.mCompName) { mCompName = y.mCompName; CFRetain (mCompName); }
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if (y.mCompInfo) { mCompInfo = y.mCompInfo; CFRetain (mCompInfo); }
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return *this;
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}
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void CAComponent::SetCompNames () const
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{
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if (!mCompName) {
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Handle h1 = NewHandle(4);
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CAComponentDescription desc;
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OSStatus err = GetComponentInfo (Comp(), &desc, h1, 0, 0);
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if (err) { DisposeHandle(h1); return; }
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HLock(h1);
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char* ptr1 = *h1;
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// Get the manufacturer's name... look for the ':' character convention
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int len = *ptr1++;
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char* displayStr = 0;
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const_cast<CAComponent*>(this)->mCompName = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman);
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for (int i = 0; i < len; ++i) {
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if (ptr1[i] == ':') { // found the name
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ptr1[i] = 0;
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displayStr = ptr1;
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break;
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}
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}
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if (displayStr)
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{
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const_cast<CAComponent*>(this)->mManuName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman);
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//move displayStr ptr past the manu, to the name
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// we move the characters down a index, because the handle doesn't have any room
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// at the end for the \0
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int i = strlen(displayStr), j = 0;
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while (displayStr[++i] == ' ' && i < len)
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;
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while (i < len)
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displayStr[j++] = displayStr[i++];
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displayStr[j] = 0;
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const_cast<CAComponent*>(this)->mAUName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman);
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}
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DisposeHandle (h1);
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}
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}
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void CAComponent::SetCompInfo () const
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{
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if (!mCompInfo) {
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Handle h1 = NewHandle(4);
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CAComponentDescription desc;
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OSStatus err = GetComponentInfo (Comp(), &desc, 0, h1, 0);
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if (err) return;
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HLock (h1);
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const_cast<CAComponent*>(this)->mCompInfo = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman);
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DisposeHandle (h1);
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}
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}
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void _ShowCF (FILE* file, CFStringRef str)
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{
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if (CFGetTypeID(str) != CFStringGetTypeID()) {
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CFShow(str);
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return;
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}
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UInt32 len = CFStringGetLength(str);
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char* chars = (char*)malloc (len * 2); // give us plenty of room for unichar chars
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if (CFStringGetCString (str, chars, len * 2, kCFStringEncodingUTF8))
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fprintf (file, "%s", chars);
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else
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CFShow (str);
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free (chars);
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}
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void CAComponent::Print(FILE* file) const
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{
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fprintf (file, "CAComponent: %p", (void*)Comp());
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if (mManuName) {
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fprintf (file, ", Manu:"); _ShowCF (file, mManuName);
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if (mAUName) fprintf (file, ", Name:"); _ShowCF (file, mAUName);
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}
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fprintf (file, ", ");
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Desc ().Print(file);
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}
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