CIFunHouse/AddFilterController.m
/* |
File: AddFilterController.m |
Abstract: View controller for the "Add Filter" table view. |
Version: 1.0 |
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*/ |
#import <AssetsLibrary/AssetsLibrary.h> |
#import "AddFilterController.h" |
#import "CIFilter+FHAdditions.h" |
@implementation AddFilterController |
@synthesize delegate = _delegate; |
@synthesize filterStack = _filterStack; |
@synthesize controllerType = _controllerType; |
@synthesize imagePickerPopoverController = _imagePickerPopoverController; |
@synthesize imagePickerNavigationController = _imagePickerNavigationController; |
enum {kAddFilterTableSectionSourceType, kAddFilterTableSectionFilterType}; |
- (NSArray *)filters |
{ |
return _filterStack.possibleNextFilters; |
} |
#pragma mark - View lifecycle |
- (void)viewDidLoad |
{ |
[super viewDidLoad]; |
self.title = @"Add Filter"; |
[[NSNotificationCenter defaultCenter] addObserver:self |
selector:@selector(_handleFilterStackActiveFilterListDidChangeNotification:) |
name:FilterStackActiveFilterListDidChangeNotification |
object:nil]; |
} |
- (void) _handleFilterStackActiveFilterListDidChangeNotification:(NSNotification *)notification |
{ |
[self.tableView reloadData]; |
} |
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation |
{ |
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) |
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); |
else |
return YES; |
} |
#pragma mark - Table view data source |
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView |
{ |
return 2; |
} |
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section |
{ |
if (section == kAddFilterTableSectionSourceType) |
return @"Sources"; |
else |
return @"Filters"; |
} |
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section |
{ |
return section == kAddFilterTableSectionSourceType ? [_filterStack.sources count] : [_filterStack.possibleNextFilters count]; |
} |
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath |
{ |
static NSString *CellIdentifier = @"Cell"; |
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; |
if (cell == nil) |
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle |
reuseIdentifier:CellIdentifier]; |
NSArray *data = indexPath.section == kAddFilterTableSectionSourceType ? _filterStack.sources : _filterStack.possibleNextFilters; |
FilterDescriptor *d = [data objectAtIndex:indexPath.row]; |
cell.textLabel.text = [d displayName]; |
if ([d.filter isKindOfClass:[SourceFilter class]]) |
cell.detailTextLabel.text = nil; |
else |
cell.detailTextLabel.text = [d name]; |
return cell; |
} |
#pragma mark - Table view delegate |
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath |
{ |
NSArray *data = indexPath.section == kAddFilterTableSectionSourceType ? _filterStack.sources : _filterStack.possibleNextFilters; |
FilterDescriptor *d = [data objectAtIndex:indexPath.row]; |
CIFilter *filter = d.filter; |
if ([filter isKindOfClass:[SourcePhotoFilter class]]) |
{ |
if (self.imagePickerNavigationController == nil) |
{ |
self.imagePickerNavigationController = [[UIImagePickerController alloc] init]; |
self.imagePickerNavigationController.delegate = self; |
} |
if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) |
{ |
if (self.imagePickerPopoverController == nil) |
self.imagePickerPopoverController = [[UIPopoverController alloc] |
initWithContentViewController:self.imagePickerNavigationController]; |
[self.imagePickerPopoverController presentPopoverFromRect:self.navigationController.view.bounds |
inView:self.view |
permittedArrowDirections:UIPopoverArrowDirectionAny |
animated:YES]; |
} |
else |
[self.navigationController presentViewController:self.imagePickerNavigationController animated:YES completion:nil]; |
return; |
} |
[self.filterStack appendFilter:filter]; |
[self.delegate didAddFilter:filter]; |
[self.tableView reloadData]; |
} |
#pragma mark UIImagePickerViewDelegate |
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info |
{ |
NSURL *assetURL = [info objectForKey:UIImagePickerControllerReferenceURL]; |
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init]; |
[library assetForURL:assetURL |
resultBlock:^(ALAsset *__strong asset) { |
// we need to be defensive |
if (asset) |
{ |
ALAssetRepresentation *rep = [asset defaultRepresentation]; |
CGImageRef cgimage = [rep fullScreenImage]; |
//CGImageRef cgimage = [rep CGImageWithOptions:@{}]; |
//NSLog(@"picked %@ longsize %lld cgimage=%zux%zu", [rep filename], [rep size], CGImageGetWidth(cgimage), CGImageGetHeight(cgimage)); |
if (cgimage) |
{ |
CIImage* ciimage = [CIImage imageWithCGImage:cgimage]; |
CIFilter* filter = [CIFilter filterWithName:@"SourcePhotoFilter"]; |
[filter setValue:ciimage forKey:kCIInputImageKey]; |
[self.filterStack appendFilter:filter]; |
[self.delegate didAddFilter:filter]; |
[self.tableView reloadData]; |
//CGImageRelease(cgimage); |
} |
else |
;//handler(nil); |
} |
else |
;//handler([NSError errorWithDomain:[[NSBundle mainBundle] bundleIdentifier] code:-1 userInfo:nil]); |
if (self.imagePickerPopoverController) |
{ |
[self.imagePickerPopoverController dismissPopoverAnimated:YES]; |
self.imagePickerPopoverController = nil; |
} |
} |
failureBlock:^(NSError *__strong error) { |
;//handler(error); |
}]; |
} |
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker |
{ |
if (self.imagePickerPopoverController) |
{ |
[self.imagePickerPopoverController dismissPopoverAnimated:YES]; |
self.imagePickerPopoverController = nil; |
} |
else |
[self.navigationController dismissViewControllerAnimated:YES completion:nil]; |
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES]; |
} |
@end |
Copyright © 2013 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2013-06-13