ITDissolveWindowEffect.m

   1 #import "ITDissolveWindowEffect.h"
   2 #import "ITTransientStatusWindow.h"
   3 #import "ITCoreGraphicsHacks.h"
   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 + (NSString *)effectName
  19 {
  20     return @"Dissolve";
  21 }
  22
  23 + (NSDictionary *)supportedPositions
  24 {
  25     return [NSDictionary dictionaryWithObjectsAndKeys:
  26         [NSDictionary dictionaryWithObjectsAndKeys:
  27             [NSNumber numberWithBool:YES], @"Left",
  28             [NSNumber numberWithBool:YES], @"Center",
  29             [NSNumber numberWithBool:YES], @"Right", nil] , @"Top" ,
  30         [NSDictionary dictionaryWithObjectsAndKeys:
  31             [NSNumber numberWithBool:YES], @"Left",
  32             [NSNumber numberWithBool:YES], @"Center",
  33             [NSNumber numberWithBool:YES], @"Right", nil] , @"Middle" ,
  34         [NSDictionary dictionaryWithObjectsAndKeys:
  35             [NSNumber numberWithBool:YES], @"Left",
  36             [NSNumber numberWithBool:YES], @"Center",
  37             [NSNumber numberWithBool:YES], @"Right", nil] , @"Bottom" , nil];
  38 }
  39
  40 + (unsigned int)listOrder
  41 {
  42     return 200;
  43 }
  44
  45
  46 /*************************************************************************/
  47 #pragma mark -
  48 #pragma mark APPEAR METHODS
  49 /*************************************************************************/
  50
  51 - (void)performAppear
  52 {
  53     __idle = NO;
  54
  55     [self setWindowVisibility:ITWindowAppearingState];
  56     [self performAppearFromProgress:0.0 effectTime:_effectTime];
  57 }
  58
  59 - (void)performAppearFromProgress:(float)progress effectTime:(float)time
  60 {
  61     [_window setEffectProgress:progress];
  62     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  63
  64     if ( progress == 0.0 ) {
  65         [_window setAlphaValue:0.0];
  66     }
  67
  68     [_window orderFront:self];
  69     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  70                                                     target:self
  71                                                   selector:@selector(appearStep)
  72                                                   userInfo:nil
  73                                                    repeats:YES];
  74 }
  75
  76 - (void)appearStep
  77 {
  78     float interFade = 0.0;
  79     [_window setEffectProgress:([_window effectProgress] + _effectSpeed)];
  80     [_window setEffectProgress:( ([_window effectProgress] < 1.0) ? [_window effectProgress] : 1.0)];
  81     interFade = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
  82     [_window setAlphaValue:interFade];
  83
  84     if ( [_window effectProgress] >= 1.0 ) {
  85         [self appearFinish];
  86     }
  87 }
  88
  89 - (void)appearFinish
  90 {
  91     [_effectTimer invalidate];
  92     _effectTimer = nil;
  93     [self setWindowVisibility:ITWindowVisibleState];
  94
  95     __idle = YES;
  96
  97     if ( __shouldReleaseWhenIdle ) {
  98         [self release];
  99     }
 100 }
 101
 102 - (void)cancelAppear
 103 {
 104     [self setWindowVisibility:ITWindowVanishingState];
 105
 106     [_effectTimer invalidate];
 107     _effectTimer = nil;
 108
 109     [self performVanishFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 110 }
 111
 112
 113 /*************************************************************************/
 114 #pragma mark -
 115 #pragma mark VANISH METHODS
 116 /*************************************************************************/
 117
 118 - (void)performVanish
 119 {
 120     __idle = NO;
 121
 122     [self setWindowVisibility:ITWindowVanishingState];
 123     [self performVanishFromProgress:1.0 effectTime:_effectTime];
 124 }
 125
 126 - (void)performVanishFromProgress:(float)progress effectTime:(float)time
 127 {
 128     [_window setEffectProgress:progress];
 129     _effectSpeed = (1.0 / (EFFECT_FPS * time));
 130     if ( progress == 1.0 ) {
 131         [_window setAlphaValue:1.0];
 132     }
 133
 134     [_window orderFront:self];
 135     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
 136                                                     target:self
 137                                                   selector:@selector(vanishStep)
 138                                                   userInfo:nil
 139                                                    repeats:YES];
 140 }
 141
 142 - (void)vanishStep
 143 {
 144     float interFade = 1.0;
 145     [_window setEffectProgress:([_window effectProgress] - _effectSpeed)];
 146     [_window setEffectProgress:( ([_window effectProgress] > 0.0) ? [_window effectProgress] : 0.0)];
 147     interFade = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
 148     [_window setAlphaValue:interFade];
 149
 150     if ( [_window effectProgress] <= 0.0 ) {
 151         [self vanishFinish];
 152     }
 153 }
 154
 155 - (void)vanishFinish
 156 {
 157     [_effectTimer invalidate];
 158     _effectTimer = nil;
 159     [_window orderOut:self];
 160     [_window setAlphaValue:1.0];
 161     [self setWindowVisibility:ITWindowHiddenState];
 162
 163     __idle = YES;
 164
 165     if ( __shouldReleaseWhenIdle ) {
 166         [self release];
 167     }
 168 }
 169
 170 - (void)cancelVanish
 171 {
 172     [self setWindowVisibility:ITWindowVanishingState];
 173
 174     [_effectTimer invalidate];
 175     _effectTimer = nil;
 176
 177     [self performAppearFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 178 }
 179
 180
 181 @end