Made loadThumbnailForObject return the generated thumbnail image. Thi…

…s way the operation can be used from outside iMB, under application specific thread management, to generate thumbnail images.

IMBLightroomParser.m

@@ -1127,7 +1127,7 @@ - (NSData*)previewDataForObject:(IMBObject*)inObject
 }
 
 
-- (void) loadThumbnailForObject:(IMBObject*)inObject
+- (id) loadThumbnailForObject:(IMBObject*)inObject
 {	
 	CGImageRef imageRepresentation = nil;
 	NSData *jpegData = [self previewDataForObject:inObject];
@@ -1183,8 +1183,10 @@ - (void) loadThumbnailForObject:(IMBObject*)inObject
 										modes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
 	}
 	else {
-		[super loadThumbnailForObject:inObject];
+		imageRepresentation = (CGImageRef) [super loadThumbnailForObject:inObject];
 	}
+
+	return (id) imageRepresentation;
 }
 
 

IMBParser.h

@@ -122,7 +122,7 @@
 
 // Called when the thumbnail for an object needs to be loaded lazily. This method will be called on a background thread...
 
-- (void) loadThumbnailForObject:(IMBObject*)inObject;
+- (id) loadThumbnailForObject:(IMBObject*)inObject;
 
 // Called when metadata for an object needs to be loaded lazily. This method may be called on a background thread...
 

IMBParser.m

@@ -203,7 +203,7 @@ - (IMBObjectPromise*) objectPromiseWithObjects:(NSArray*)inObjects
 #pragma mark 
 
 
-- (void) loadThumbnailForObject:(IMBObject*)inObject
+- (id) loadThumbnailForObject:(IMBObject*)inObject
 {
 	id imageRepresentation = nil;
 	NSString* type = inObject.imageRepresentationType;
@@ -338,6 +338,8 @@ - (void) loadThumbnailForObject:(IMBObject*)inObject
 			waitUntilDone:NO 
 			modes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
 	}
+
+	return imageRepresentation;
 }
 
 

IMBiPhotoParser.m

@@ -344,8 +344,10 @@ - (void) watchedPathDidChange:(NSString*)inWatchedPath
 // To speed up thumbnail loading we will not use the generic method of the superclass. Instead we provide an
 // implementation here, that uses specific knowledge about iPhoto to load thumbnails as quickly as possible...
 
-- (void) loadThumbnailForObject:(IMBObject*)inObject
+- (id) loadThumbnailForObject:(IMBObject*)inObject
 {
+	id imageRepresentation = nil;
+
 	// Get path of our object...
 
 	NSString* type = inObject.imageRepresentationType;
@@ -369,6 +371,7 @@ - (void) loadThumbnailForObject:(IMBObject*)inObject
 
 				if (image)
 				{
+					imageRepresentation = (id) image;
 					[inObject 
 						performSelectorOnMainThread:@selector(setImageRepresentation:) 
 						withObject:(id)image
@@ -388,8 +391,10 @@ - (void) loadThumbnailForObject:(IMBObject*)inObject
 
 	else if ([type isEqualToString:IKImageBrowserQTMovieRepresentationType])
 	{
-		[super loadThumbnailForObject:inObject];
+		imageRepresentation = [super loadThumbnailForObject:inObject];
 	}
+
+	return imageRepresentation;
 }