ITDissolveWindowEffect.m

   1 #import "ITDissolveWindowEffect.h"
   2 #import "ITTransientStatusWindow.h"
   3
   4
   5 @interface ITDissolveWindowEffect (Private)
   6 - (void)performAppearFromProgress:(float)progress effectTime:(float)time;
   7 - (void)appearStep;
   8 - (void)appearFinish;
   9 - (void)performVanishFromProgress:(float)progress effectTime:(float)time;
  10 - (void)vanishStep;
  11 - (void)vanishFinish;
  12 @end
  13
  14
  15 @implementation ITDissolveWindowEffect
  16
  17
  18 /*************************************************************************/
  19 #pragma mark -
  20 #pragma mark APPEAR METHODS
  21 /*************************************************************************/
  22
  23 - (void)performAppear
  24 {
  25     [self setWindowVisibility:ITTransientStatusWindowAppearingState];
  26     [self performAppearFromProgress:0.0 effectTime:_effectTime];
  27 }
  28
  29 - (void)performAppearFromProgress:(float)progress effectTime:(float)time
  30 {
  31     [_window setEffectProgress:progress];
  32     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  33
  34     if ( progress == 0.0 ) {
  35         [_window setAlphaValue:0.0];
  36     }
  37
  38     [_window orderFront:self];
  39     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  40                                                     target:self
  41                                                   selector:@selector(appearStep)
  42                                                   userInfo:nil
  43                                                    repeats:YES];
  44 }
  45
  46 - (void)appearStep
  47 {
  48     float interFade = 0.0;
  49     [_window setEffectProgress:([_window effectProgress] + _effectSpeed)];
  50     [_window setEffectProgress:( ([_window effectProgress] < 1.0) ? [_window effectProgress] : 1.0)];
  51     interFade = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
  52     [_window setAlphaValue:interFade];
  53
  54     if ( [_window effectProgress] >= 1.0 ) {
  55         [self appearFinish];
  56     }
  57 }
  58
  59 - (void)appearFinish
  60 {
  61     [_effectTimer invalidate];
  62     _effectTimer = nil;
  63     [self setWindowVisibility:ITTransientStatusWindowVisibleState];
  64 }
  65
  66 - (void)cancelAppear
  67 {
  68     [self setWindowVisibility:ITTransientStatusWindowVanishingState];
  69
  70     [_effectTimer invalidate];
  71     _effectTimer = nil;
  72
  73     [self performVanishFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
  74 }
  75
  76
  77 /*************************************************************************/
  78 #pragma mark -
  79 #pragma mark VANISH METHODS
  80 /*************************************************************************/
  81
  82 - (void)performVanish
  83 {
  84     [self setWindowVisibility:ITTransientStatusWindowVanishingState];
  85     [self performVanishFromProgress:1.0 effectTime:_effectTime];
  86 }
  87
  88 - (void)performVanishFromProgress:(float)progress effectTime:(float)time
  89 {
  90     [_window setEffectProgress:progress];
  91     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  92     if ( progress == 1.0 ) {
  93         [_window setAlphaValue:1.0];
  94     }
  95
  96     [_window orderFront:self];
  97     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  98                                                     target:self
  99                                                   selector:@selector(vanishStep)
 100                                                   userInfo:nil
 101                                                    repeats:YES];
 102 }
 103
 104 - (void)vanishStep
 105 {
 106     float interFade = 1.0;
 107     [_window setEffectProgress:([_window effectProgress] - _effectSpeed)];
 108     [_window setEffectProgress:( ([_window effectProgress] > 0.0) ? [_window effectProgress] : 0.0)];
 109     interFade = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
 110     [_window setAlphaValue:interFade];
 111
 112     if ( [_window effectProgress] <= 0.0 ) {
 113         [self vanishFinish];
 114     }
 115 }
 116
 117 - (void)vanishFinish
 118 {
 119     [_effectTimer invalidate];
 120     _effectTimer = nil;
 121     [_window orderOut:self];
 122     [_window setAlphaValue:1.0];
 123     [self setWindowVisibility:ITTransientStatusWindowHiddenState];
 124 }
 125
 126 - (void)cancelVanish
 127 {
 128     [self setWindowVisibility:ITTransientStatusWindowVanishingState];
 129
 130     [_effectTimer invalidate];
 131     _effectTimer = nil;
 132
 133     [self performAppearFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 134 }
 135
 136
 137 @end