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@d-ronnqvist
Last active August 29, 2015 14:10
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The formatting horrors you sometimes need to go through to fit Objective-C in a two column layout
- (NSURL *) writeImage:(NSImage *)image
withSceneDocumentURL:(NSURL *)documentURL
originalImageURL:(NSURL *)originalImageURL
{
if (!originalImageURL) {
// Let the default exporter write this image
return nil;
}
NSString *sceneFileName =
[documentURL lastPathComponent];
NSString *documentName =
[sceneFileName stringByDeletingPathExtension];
NSURL *containerDirectory =
[documentURL URLByDeletingLastPathComponent];
// The name of the folder to store the images
NSURL *imageFolder =
[containerDirectory URLByAppendingPathComponent:
[documentName stringByAppendingString:@"_textures"]];
// Create the folder to put the images in
NSError *folderCreationError = nil;
NSFileManager *fileManager = [NSFileManager defaultManager];
BOOL folderCreationWasSuccessful =
[fileManager createDirectoryAtURL:imageFolder
withIntermediateDirectories:NO
attributes:nil
error:&folderCreationError];
// The documentation says that it's better to try and
// recover then to check for file existance
if (!folderCreationWasSuccessful &&
folderCreationError.code != NSFileWriteFileExistsError) {
NSLog(@"Textures folder coudn't be created: %@",
[folderCreationError localizedDescription]);
return nil; // To signal that no image was saved
}
// Attempt to save the image
NSString *imageName = [originalImageURL lastPathComponent];
NSURL *imageURL =
[imageFolder URLByAppendingPathComponent:imageName];
NSData *imageData = [image TIFFRepresentation];
BOOL savingImageWasSuccessful =
[imageData writeToFile:[imageURL path]
atomically:YES];
if (!savingImageWasSuccessful) {
NSLog(@"Could not save image at URL: %@",
[imageURL absoluteString]);
return nil; // To signal that no image was saved
}
return imageURL; // The URL of the saved image
}
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