Convert to ARC

.gitignore

@@ -3,3 +3,7 @@
 build/
 *.pbxuser
 *.mode1v3
+*.mode2v3
+*.perspective
+*.perspectivev3
+*.xcuserdatad

Calendar.xcodeproj/project.pbxproj

@@ -208,7 +208,11 @@
 			isa = PBXProject;
 			buildConfigurationList = C01FCF4E08A954540054247B /* Build configuration list for PBXProject "Calendar" */;
 			compatibilityVersion = "Xcode 3.1";
+			developmentRegion = English;
 			hasScannedForEncodings = 1;
+			knownRegions = (
+				en,
+			);
 			mainGroup = 29B97314FDCFA39411CA2CEA /* CustomTemplate */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -277,11 +281,13 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ENABLE_OBJC_ARC = YES;
 				COPY_PHASE_STRIP = NO;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Calendar_Prefix.pch;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				INFOPLIST_FILE = "Calendar-Info.plist";
 				PRODUCT_NAME = Calendar;
 			};
@@ -291,9 +297,11 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ENABLE_OBJC_ARC = YES;
 				COPY_PHASE_STRIP = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Calendar_Prefix.pch;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				INFOPLIST_FILE = "Calendar-Info.plist";
 				PRODUCT_NAME = Calendar;
 			};
@@ -308,7 +316,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = iphoneos3.1.2;
+				SDKROOT = iphoneos;
 			};
 			name = Debug;
 		};
@@ -321,7 +329,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = iphoneos3.1.2;
+				SDKROOT = iphoneos;
 			};
 			name = Release;
 		};

Classes/CalendarAppDelegate.m

@@ -12,13 +12,13 @@ @implementation CalendarAppDelegate
 
 - (void)applicationDidFinishLaunching:(UIApplication *)application {
 	// create calendar view
-	GCCalendarPortraitView *calendar = [[[GCCalendarPortraitView alloc] init] autorelease];
+	GCCalendarPortraitView *calendar = [[GCCalendarPortraitView alloc] init];
 	calendar.dataSource = self;
 	calendar.delegate = self;
 	calendar.hasAddButton = YES;
 
 	// create navigation view
-	UINavigationController *nav = [[[UINavigationController alloc] initWithRootViewController:calendar] autorelease];
+	UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:calendar];
 
 	// create tab controller
 	tabController = [[UITabBarController alloc] init];
@@ -30,17 +30,6 @@ - (void)applicationDidFinishLaunching:(UIApplication *)application {
     [window makeKeyAndVisible];
 }
 
-
-- (void)dealloc {
-    [window release];
-	window = nil;
-
-	[tabController release];
-	tabController = nil;
-
-    [super dealloc];
-}
-
 #pragma mark GCCalendarDataSource
 - (NSArray *)calendarEventsForDate:(NSDate *)date {
 	NSMutableArray *events = [NSMutableArray array];
@@ -68,7 +57,6 @@ - (NSArray *)calendarEventsForDate:(NSDate *)date {
 		event.endDate = [[NSCalendar currentCalendar] dateFromComponents:components];
 
 		[events addObject:event];
-		[event release];
 	}
 
 
@@ -83,14 +71,12 @@ - (NSArray *)calendarEventsForDate:(NSDate *)date {
 	[components setHour:20];
 	evt.endDate = [[NSCalendar currentCalendar] dateFromComponents:components];
 	[events addObject:evt];
-	[evt release];
 
 	// create an all day event
 	GCCalendarEvent *event = [[GCCalendarEvent alloc] init];
 	event.allDayEvent = YES;
 	event.eventName = @"All Day Event";
 	[events addObject:event];
-	[event release];
 
 	return events;
 }

GCCalendar/GCCalendar.m

@@ -65,7 +65,7 @@ + (NSDateFormatter *)timeFormatter {
 #pragma mark color list
 + (NSArray *)colors {
 	if (colors == nil) {
-		colors = [[NSArray arrayWithObjects:@"BLUE", @"GREEN", @"ORANGE", @"MAGENTA", @"PURPLE", @"RED", @"YELLOW", nil] retain];
+		colors = [NSArray arrayWithObjects:@"BLUE", @"GREEN", @"ORANGE", @"MAGENTA", @"PURPLE", @"RED", @"YELLOW", nil];
 	}
 
 	return colors;

GCCalendar/GCCalendarDayView.h

@@ -33,7 +33,7 @@
 	id<GCCalendarDataSource> dataSource;
 }
 
-@property (nonatomic, retain) NSDate *date;
+@property (nonatomic, strong) NSDate *date;
 /*
  accessor methods for accessing the contentOffset of the scroll view.
  this is used to keep the scroll position the same from one day view

GCCalendar/GCCalendarDayView.m

@@ -36,15 +36,14 @@ @implementation GCCalendarAllDayView
 - (id)initWithEvents:(NSArray *)a {
 	if (self = [super init]) {
 		NSPredicate *pred = [NSPredicate predicateWithFormat:@"allDayEvent == YES"];
-		events = [[a filteredArrayUsingPredicate:pred] retain];
+		events = [a filteredArrayUsingPredicate:pred];
 
 		NSInteger eventCount = 0;
 		for (GCCalendarEvent *e in events) {
 			if (eventCount < 5) {
 				GCCalendarTile *tile = [[GCCalendarTile alloc] init];
 				tile.event = e;
 				[self addSubview:tile];
-				[tile release];
 
 				eventCount++;
 			}
@@ -53,12 +52,6 @@ - (id)initWithEvents:(NSArray *)a {
 
 	return self;
 }
-- (void)dealloc {
-	[events release];
-	events = nil;
-
-	[super dealloc];
-}
 - (BOOL)hasEvents {
 	return ([events count] != 0);
 }
@@ -126,13 +119,12 @@ @implementation GCCalendarTodayView
 - (id)initWithEvents:(NSArray *)a {
 	if (self = [super init]) {
 		NSPredicate *pred = [NSPredicate predicateWithFormat:@"allDayEvent == NO"];
-		events = [[a filteredArrayUsingPredicate:pred] retain];
+		events = [a filteredArrayUsingPredicate:pred];
 
 		for (GCCalendarEvent *e in events) {
 			GCCalendarTile *tile = [[GCCalendarTile alloc] init];
 			tile.event = e;
 			[self addSubview:tile];
-			[tile release];
 		}
 	}
 
@@ -141,12 +133,6 @@ - (id)initWithEvents:(NSArray *)a {
 - (BOOL)hasEvents {
 	return ([events count] != 0);
 }
-- (void)dealloc {
-	[events release];
-	events = nil;
-
-	[super dealloc];
-}
 - (void)layoutSubviews {
 	for (UIView *view in self.subviews) {
 		// get calendar tile and associated event
@@ -287,11 +273,10 @@ @implementation GCCalendarDayView
 #pragma mark create and destroy view
 + (void)initialize {
 	if(self == [GCCalendarDayView class]) {
-		timeStrings = [[NSArray arrayWithObjects:@"12",
+		timeStrings = [NSArray arrayWithObjects:@"12",
 						@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8", @"9", @"10", @"11",
 						[[NSBundle mainBundle] localizedStringForKey:@"NOON" value:@"" table:@"GCCalendar"],
-						@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8", @"9", @"10", @"11", @"12", nil]
-					   retain];
+						@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8", @"9", @"10", @"11", @"12", nil];
 	}
 }
 - (id)initWithCalendarView:(GCCalendarView *)view {
@@ -301,20 +286,12 @@ - (id)initWithCalendarView:(GCCalendarView *)view {
 
 	return self;
 }
-- (void)dealloc {
-	self.date = nil;
-
-    [super dealloc];
-}
 - (void)reloadData {
 	// get new events for date
 	events = [dataSource calendarEventsForDate:date];
 
 	// drop all subviews
 	[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
-	[allDayView release];
-	[todayView release];
-	[scrollView release];
 
 	// create all day view
 	allDayView = [[GCCalendarAllDayView alloc] initWithEvents:events];

GCCalendar/GCCalendarEvent.h

@@ -47,7 +47,7 @@
 @property (nonatomic, copy) NSDate *startDate;
 @property (nonatomic, copy) NSDate *endDate;
 @property (nonatomic, copy) NSString *color;
-@property (nonatomic, retain) id userInfo;
+@property (nonatomic, strong) id userInfo;
 @property (nonatomic) BOOL allDayEvent;
 
 @end

GCCalendar/GCCalendarEvent.m

@@ -28,14 +28,5 @@ - (id)init {
 	return self;
 }
 
-- (void)dealloc {
-	self.eventName = nil;
-	self.eventDescription = nil;
-	self.startDate = nil;
-	self.endDate = nil;
-	self.color = nil;
-
-	[super dealloc];
-}
 
 @end

GCCalendar/GCCalendarPortraitView.m

@@ -17,8 +17,8 @@
 #define kAnimationDuration 0.3f
 
 @interface GCCalendarPortraitView ()
-@property (nonatomic, retain) NSDate *date;
-@property (nonatomic, retain) GCCalendarDayView *dayView;
+@property (nonatomic, strong) NSDate *date;
+@property (nonatomic, strong) GCCalendarDayView *dayView;
 
 - (void)reloadDayAnimated:(BOOL)animated context:(void *)context;
 @end
@@ -50,13 +50,6 @@ - (id)init {
 }
 - (void)dealloc {
 	[[NSNotificationCenter defaultCenter] removeObserver:self];
-
-	self.date = nil;
-	self.dayView = nil;
-
-	[dayPicker release];
-
-	[super dealloc];
 }
 
 #pragma mark calendar actions
@@ -78,7 +71,7 @@ - (void)datePickerDidChangeDate:(GCDatePickerControl *)picker {
 
 	[[NSUserDefaults standardUserDefaults] setObject:date forKey:@"GCCalendarDate"];
 
-	[self reloadDayAnimated:YES context:[NSNumber numberWithInt:interval]];
+	[self reloadDayAnimated:YES context:(__bridge void *)([NSNumber numberWithInt:interval])];
 }
 
 #pragma mark button actions
@@ -106,7 +99,6 @@ - (void)setHasAddButton:(BOOL)b {
 																				target:self
 																				action:@selector(add)];
 		self.navigationItem.rightBarButtonItem = button;
-		[button release];
 	}
 	else {
 		self.navigationItem.rightBarButtonItem = nil;
@@ -145,7 +137,6 @@ - (void)loadView {
 															  target:self 
 															  action:@selector(today)];
 	self.navigationItem.leftBarButtonItem = button;
-	[button release];
 }
 - (void)viewWillAppear:(BOOL)animated {
 	[super viewWillAppear:animated];
@@ -166,7 +157,7 @@ - (void)viewDidDisappear:(BOOL)animated {
 #pragma mark view animation functions
 - (void)reloadDayAnimated:(BOOL)animated context:(void *)context {
 	if (animated) {
-		NSTimeInterval interval = [(NSNumber *)context doubleValue];
+		NSTimeInterval interval = [(__bridge NSNumber *)context doubleValue];
 
 		// block user interaction
 		dayPicker.userInteractionEnabled = NO;
@@ -181,7 +172,6 @@ - (void)reloadDayAnimated:(BOOL)animated context:(void *)context {
 			initialFrame.origin.x = 0 - initialFrame.size.width;
 		}
 		else {
-			[nextDayView release];
 			return;
 		}
 		nextDayView.frame = initialFrame;
@@ -191,7 +181,7 @@ - (void)reloadDayAnimated:(BOOL)animated context:(void *)context {
 
 		[self.view addSubview:nextDayView];
 
-		[UIView beginAnimations:nil context:nextDayView];
+		[UIView beginAnimations:nil context:(__bridge void*)nextDayView];
 		[UIView setAnimationDuration:kAnimationDuration];
 		[UIView setAnimationDelegate:self];
 		[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
@@ -216,7 +206,7 @@ - (void)animationDidStop:(NSString *)animationID
 				finished:(NSNumber *)finished 
 				 context:(void *)context {
 
-	GCCalendarDayView *nextDayView = (GCCalendarDayView *)context;
+	GCCalendarDayView *nextDayView = (__bridge GCCalendarDayView *)context;
 
 	// cut variables
 	[dayView removeFromSuperview];
@@ -225,7 +215,6 @@ - (void)animationDidStop:(NSString *)animationID
 	self.dayView = nextDayView;
 
 	// release pointers
-	[nextDayView release];
 
 	// reset pickers
 	dayPicker.userInteractionEnabled = YES;

GCCalendar/GCCalendarTile.h

@@ -30,6 +30,6 @@
 	GCCalendarEvent *event;
 }
 
-@property (nonatomic, retain) GCCalendarEvent *event;
+@property (nonatomic, strong) GCCalendarEvent *event;
 
 @end

GCCalendar/GCCalendarTile.m

@@ -46,15 +46,8 @@ - (id)init {
 
 	return self;
 }
-- (void)dealloc {
-	self.event = nil;
-
-	[super dealloc];
-}
 - (void)setEvent:(GCCalendarEvent *)e {
-	[event release];
 	event = e;
-	[event retain];
 
 	// set bg image
 	NSString *colorString = [event.color capitalizedString];

GCCalendar/GCCalendarView.h

@@ -12,13 +12,13 @@
 
 @interface GCCalendarView : UIViewController {
 	// data source
-	id<GCCalendarDataSource> dataSource;
+	id<GCCalendarDataSource> __unsafe_unretained dataSource;
 
 	// delegate
-	id<GCCalendarDelegate> delegate;
+	id<GCCalendarDelegate> __unsafe_unretained delegate;
 }
 
-@property (nonatomic, assign) id<GCCalendarDataSource> dataSource;
-@property (nonatomic, assign) id<GCCalendarDelegate> delegate;
+@property (nonatomic, unsafe_unretained) id<GCCalendarDataSource> dataSource;
+@property (nonatomic, unsafe_unretained) id<GCCalendarDelegate> delegate;
 
 @end