QLColorCode/main.c at master · fabgithub/QLColorCode · GitHub

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//==============================================================================

// DO NO MODIFY THE CONTENT OF THIS FILE

// This file contains the generic CFPlug-in code necessary for your generator

// To complete your generator implement the function in GenerateThumbnailForURL/GeneratePreviewForURL.c

//==============================================================================

#include <CoreFoundation/CoreFoundation.h>

#include <CoreFoundation/CFPlugInCOM.h>

#include <CoreServices/CoreServices.h>

#include <QuickLook/QuickLook.h>

// -----------------------------------------------------------------------------

// constants

// -----------------------------------------------------------------------------

// Don't modify this line

#define PLUGIN_ID "C044543D-70A1-46D8-A908-4B8AEA1197A4"

// Below is the generic glue code for all plug-ins.

// You should not have to modify this code aside from changing

// names if you decide to change the names defined in the Info.plist

// -----------------------------------------------------------------------------

// typedefs

// -----------------------------------------------------------------------------

// The thumbnail generation function to be implemented in GenerateThumbnailForURL.c

OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize);

void CancelThumbnailGeneration(void* thisInterface, QLThumbnailRequestRef thumbnail);

// The preview generation function to be implemented in GeneratePreviewForURL.c

OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options);

void CancelPreviewGeneration(void *thisInterface, QLPreviewRequestRef preview);

// The layout for an instance of QuickLookGeneratorPlugIn

typedef struct __QuickLookGeneratorPluginType

{

void *conduitInterface;

CFUUIDRef factoryID;

UInt32 refCount;

} QuickLookGeneratorPluginType;

// -----------------------------------------------------------------------------

// prototypes

// -----------------------------------------------------------------------------

// Forward declaration for the IUnknown implementation.

QuickLookGeneratorPluginType *AllocQuickLookGeneratorPluginType(CFUUIDRef inFactoryID);

void DeallocQuickLookGeneratorPluginType(QuickLookGeneratorPluginType *thisInstance);

HRESULT QuickLookGeneratorQueryInterface(void *thisInstance,REFIID iid,LPVOID *ppv);

void *QuickLookGeneratorPluginFactory(CFAllocatorRef allocator,CFUUIDRef typeID);

ULONG QuickLookGeneratorPluginAddRef(void *thisInstance);

ULONG QuickLookGeneratorPluginRelease(void *thisInstance);

// -----------------------------------------------------------------------------

// myInterfaceFtbl definition

// -----------------------------------------------------------------------------

// The QLGeneratorInterfaceStruct function table.

static QLGeneratorInterfaceStruct myInterfaceFtbl = {

NULL,

QuickLookGeneratorQueryInterface,

QuickLookGeneratorPluginAddRef,

QuickLookGeneratorPluginRelease,

NULL,

NULL

};

// -----------------------------------------------------------------------------

// AllocQuickLookGeneratorPluginType

// -----------------------------------------------------------------------------

// Utility function that allocates a new instance.

// You can do some initial setup for the generator here if you wish

// like allocating globals etc...

QuickLookGeneratorPluginType *AllocQuickLookGeneratorPluginType(CFUUIDRef inFactoryID)

{

QuickLookGeneratorPluginType *theNewInstance;

theNewInstance = (QuickLookGeneratorPluginType *)malloc(sizeof(QuickLookGeneratorPluginType));

memset(theNewInstance,0,sizeof(QuickLookGeneratorPluginType));

/* Point to the function table Malloc enough to store the stuff and copy the filler from myInterfaceFtbl over */

theNewInstance->conduitInterface = malloc(sizeof(QLGeneratorInterfaceStruct));

memcpy(theNewInstance->conduitInterface,&myInterfaceFtbl,sizeof(QLGeneratorInterfaceStruct));

/* Retain and keep an open instance refcount for each factory. */

theNewInstance->factoryID = CFRetain(inFactoryID);

CFPlugInAddInstanceForFactory(inFactoryID);

/* This function returns the IUnknown interface so set the refCount to one. */

theNewInstance->refCount = 1;

return theNewInstance;

}

// -----------------------------------------------------------------------------

// DeallocQuickLookGeneratorPluginType

// -----------------------------------------------------------------------------

// Utility function that deallocates the instance when

// the refCount goes to zero.

// In the current implementation generator interfaces are never deallocated

// but implement this as this might change in the future

void DeallocQuickLookGeneratorPluginType(QuickLookGeneratorPluginType *thisInstance)

{

CFUUIDRef theFactoryID;

theFactoryID = thisInstance->factoryID;

/* Free the conduitInterface table up */

free(thisInstance->conduitInterface);

/* Free the instance structure */

free(thisInstance);

if (theFactoryID){

CFPlugInRemoveInstanceForFactory(theFactoryID);

CFRelease(theFactoryID);

}

// -----------------------------------------------------------------------------

// QuickLookGeneratorQueryInterface

// -----------------------------------------------------------------------------

// Implementation of the IUnknown QueryInterface function.

HRESULT QuickLookGeneratorQueryInterface(void *thisInstance,REFIID iid,LPVOID *ppv)

{

CFUUIDRef interfaceID;

interfaceID = CFUUIDCreateFromUUIDBytes(kCFAllocatorDefault,iid);

if (CFEqual(interfaceID,kQLGeneratorCallbacksInterfaceID)){

/* If the Right interface was requested, bump the ref count,

* set the ppv parameter equal to the instance, and

* return good status.

((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GenerateThumbnailForURL = GenerateThumbnailForURL;

((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->CancelThumbnailGeneration = CancelThumbnailGeneration;

((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GeneratePreviewForURL = GeneratePreviewForURL;

((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->CancelPreviewGeneration = CancelPreviewGeneration;

((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType*)thisInstance)->conduitInterface)->AddRef(thisInstance);

*ppv = thisInstance;

CFRelease(interfaceID);

return S_OK;

}else{

/* Requested interface unknown, bail with error. */

*ppv = NULL;

CFRelease(interfaceID);

return E_NOINTERFACE;

}

// -----------------------------------------------------------------------------

// QuickLookGeneratorPluginAddRef

// -----------------------------------------------------------------------------

// Implementation of reference counting for this type. Whenever an interface

// is requested, bump the refCount for the instance. NOTE: returning the

// refcount is a convention but is not required so don't rely on it.

ULONG QuickLookGeneratorPluginAddRef(void *thisInstance)

{

((QuickLookGeneratorPluginType *)thisInstance )->refCount += 1;

return ((QuickLookGeneratorPluginType*) thisInstance)->refCount;

}

// -----------------------------------------------------------------------------

// QuickLookGeneratorPluginRelease

// -----------------------------------------------------------------------------

// When an interface is released, decrement the refCount.

// If the refCount goes to zero, deallocate the instance.

ULONG QuickLookGeneratorPluginRelease(void *thisInstance)

{

((QuickLookGeneratorPluginType*)thisInstance)->refCount -= 1;

if (((QuickLookGeneratorPluginType*)thisInstance)->refCount == 0){

DeallocQuickLookGeneratorPluginType((QuickLookGeneratorPluginType*)thisInstance );

return 0;

}else{

return ((QuickLookGeneratorPluginType*) thisInstance )->refCount;

}

// -----------------------------------------------------------------------------

// QuickLookGeneratorPluginFactory

// -----------------------------------------------------------------------------

void *QuickLookGeneratorPluginFactory(CFAllocatorRef allocator,CFUUIDRef typeID)

{

QuickLookGeneratorPluginType *result;

CFUUIDRef uuid;

/* If correct type is being requested, allocate an

* instance of kQLGeneratorTypeID and return the IUnknown interface.

if (CFEqual(typeID,kQLGeneratorTypeID)){

uuid = CFUUIDCreateFromString(kCFAllocatorDefault,CFSTR(PLUGIN_ID));

result = AllocQuickLookGeneratorPluginType(uuid);

CFRelease(uuid);

return result;

}

/* If the requested type is incorrect, return NULL. */

return NULL;

}

QLColorCode/main.c at master · fabgithub/QLColorCode · GitHub

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