Deprecated/ITChasingArrowsView.m

   1 #import "ITChasingArrowsView.h"
   2
   3
   4 @implementation ITChasingArrowsView
   5
   6 - (id)initWithCoder:(NSCoder *)decoder
   7 {
   8     self = [super initWithCoder:decoder];
   9
  10     running = NO;
  11
  12     images = [[decoder decodeObject] retain];
  13
  14     curIndex = 0;
  15     timer = nil;
  16
  17     return self;
  18 }
  19
  20 - (void)encodeWithCoder:(NSCoder *)coder
  21 {
  22     [super encodeWithCoder:coder];
  23
  24     [coder encodeObject:images];
  25 }
  26
  27 - (id)initWithFrame:(NSRect)frame {
  28     self = [super initWithFrame:frame];
  29     if (self) {
  30         NSBundle *bund = [NSBundle bundleForClass:[self class]];
  31         running = NO;
  32         images = [[NSArray alloc] initWithObjects:
  33             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow1.tiff"]] autorelease],
  34             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow2.tiff"]] autorelease],
  35             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow3.tiff"]] autorelease],
  36             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow4.tiff"]] autorelease],
  37             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow5.tiff"]] autorelease],
  38             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow6.tiff"]] autorelease],
  39             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow7.tiff"]] autorelease],
  40             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow8.tiff"]] autorelease],
  41             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow9.tiff"]] autorelease],
  42             [[[NSImage alloc] initWithContentsOfFile:[bund pathForImageResource:@"ITChasingArrow10.tiff"]] autorelease],
  43             nil];
  44
  45         curIndex = 0;
  46         timer = nil;
  47     }
  48     return self;
  49 }
  50
  51 - (void)dealloc
  52 {
  53     if (timer)
  54     {
  55         [timer invalidate];
  56         [timer release];
  57         timer = nil;
  58     }
  59     [images release];
  60
  61     [super dealloc];
  62 }
  63 - (void)drawRect:(NSRect)rect {
  64
  65     if (running)
  66     {
  67         NSImage *curImage = [images objectAtIndex:curIndex];
  68         float amt;
  69         if (inForeground)
  70         {
  71             amt = 1.0;
  72         }
  73         else
  74         {
  75             amt = 0.5;
  76         }
  77         [curImage compositeToPoint:NSMakePoint(0,0) operation:NSCompositeSourceOver fraction:amt];
  78     }
  79     else
  80     {
  81         // draw nothing.
  82     }
  83 }
  84
  85 - (IBAction)stop:(id)sender
  86 {
  87     running = NO;
  88
  89     if (timer)
  90     {
  91         NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
  92         [nc removeObserver:self];
  93         [timer invalidate];
  94         [timer release];
  95         timer = nil;
  96     }
  97
  98     [self setNeedsDisplay:YES];
  99 }
 100
 101 - (IBAction)start:(id)sender
 102 {
 103     if (!timer)
 104     {
 105         NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
 106         [nc addObserver:self selector:@selector(appWentToBackground:) name:NSApplicationWillResignActiveNotification object:nil];
 107         [nc addObserver:self selector:@selector(appWentToForeground:) name:NSApplicationWillBecomeActiveNotification object:nil];
 108         [nc addObserver:self selector:@selector(windowWentToBackground:) name:NSWindowDidResignMainNotification object:nil];
 109         [nc addObserver:self selector:@selector(windowWentToForeground:) name:NSWindowDidBecomeMainNotification object:nil];
 110         inForeground = ([NSApp isActive] && [[self window] isMainWindow]);
 111         curIndex = 0;
 112         running = YES;
 113         timer = [[NSTimer scheduledTimerWithTimeInterval:0.05
 114                                                   target:self
 115                                                 selector:@selector(showNewImage:)
 116                                                 userInfo:nil
 117                                                  repeats:YES] retain];
 118         [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSEventTrackingRunLoopMode];
 119     }
 120 }
 121
 122 - (void)showNewImage:(NSTimer *)t
 123 {
 124     [self setNeedsDisplay:YES];
 125
 126     if (curIndex == 9)
 127     {
 128         curIndex = 0;
 129     }
 130     else
 131     {
 132         curIndex++;
 133     }
 134 }
 135
 136 - (void)appWentToBackground:(NSNotification *)note
 137 {
 138     inForeground = NO;
 139 }
 140
 141 - (void)appWentToForeground:(NSNotification *)note
 142 {
 143     inForeground = YES;
 144 }
 145
 146 - (void)windowWentToBackground:(NSNotification *)note
 147 {
 148     NSWindow *window = [note object];
 149     if (window == [self window])
 150     {
 151         inForeground = NO;
 152     }
 153 }
 154
 155 - (void)windowWentToForeground:(NSNotification *)note
 156 {
 157     NSWindow *window = [note object];
 158     if (window == [self window])
 159     {
 160         inForeground = YES;
 161     }
 162 }
 163
 164
 165 @end