ITSpinWindowEffect.m

   1 #import "ITSpinWindowEffect.h"
   2 #import "ITCoreGraphicsHacks.h"
   3 #import "ITTransientStatusWindow.h"
   4
   5
   6 @interface ITSpinWindowEffect (Private)
   7 - (void)performAppearFromProgress:(float)progress effectTime:(float)time;
   8 - (void)appearStep;
   9 - (void)appearFinish;
  10 - (void)performVanishFromProgress:(float)progress effectTime:(float)time;
  11 - (void)vanishStep;
  12 - (void)vanishFinish;
  13 - (void)setSpin:(float)progress;
  14 @end
  15
  16
  17 @implementation ITSpinWindowEffect
  18
  19
  20 + (NSString *)effectName
  21 {
  22     return @"Spin";
  23 }
  24
  25 + (NSDictionary *)supportedPositions
  26 {
  27     return [NSDictionary dictionaryWithObjectsAndKeys:
  28         [NSDictionary dictionaryWithObjectsAndKeys:
  29             [NSNumber numberWithBool:YES], @"Left",
  30             [NSNumber numberWithBool:YES], @"Center",
  31             [NSNumber numberWithBool:YES], @"Right", nil] , @"Top" ,
  32         [NSDictionary dictionaryWithObjectsAndKeys:
  33             [NSNumber numberWithBool:YES], @"Left",
  34             [NSNumber numberWithBool:YES], @"Center",
  35             [NSNumber numberWithBool:YES], @"Right", nil] , @"Middle" ,
  36         [NSDictionary dictionaryWithObjectsAndKeys:
  37             [NSNumber numberWithBool:YES], @"Left",
  38             [NSNumber numberWithBool:YES], @"Center",
  39             [NSNumber numberWithBool:YES], @"Right", nil] , @"Bottom" , nil];
  40 }
  41
  42
  43 + (unsigned int)listOrder
  44 {
  45     return 700;
  46 }
  47
  48
  49 /*************************************************************************/
  50 #pragma mark -
  51 #pragma mark APPEAR METHODS
  52 /*************************************************************************/
  53
  54 - (void)performAppear
  55 {
  56     __idle = NO;
  57
  58     [self setWindowVisibility:ITWindowAppearingState];
  59     [self performAppearFromProgress:0.0 effectTime:_effectTime];
  60 }
  61
  62 - (void)performAppearFromProgress:(float)progress effectTime:(float)time
  63 {
  64     [_window setEffectProgress:progress];
  65     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  66
  67     if ( progress == 0.0 ) {
  68         [self setSpin:0.0];
  69         [_window setAlphaValue:0.0];
  70     }
  71
  72     [_window orderFront:self];
  73     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  74                                                     target:self
  75                                                   selector:@selector(appearStep)
  76                                                   userInfo:nil
  77                                                    repeats:YES];
  78 }
  79
  80 - (void)appearStep
  81 {
  82     float interSpin = 0.0;
  83     [_window setEffectProgress:([_window effectProgress] + _effectSpeed)];
  84     [_window setEffectProgress:( ([_window effectProgress] < 1.0) ? [_window effectProgress] : 1.0)];
  85     interSpin = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
  86     [self setSpin:-interSpin];
  87     [_window setAlphaValue:interSpin];
  88
  89     if ( [_window effectProgress] >= 1.0 ) {
  90         [self appearFinish];
  91     }
  92 }
  93
  94 - (void)appearFinish
  95 {
  96     [_effectTimer invalidate];
  97     _effectTimer = nil;
  98     [self setWindowVisibility:ITWindowVisibleState];
  99
 100     __idle = YES;
 101
 102     if ( __shouldReleaseWhenIdle ) {
 103         [self release];
 104     }
 105 }
 106
 107 - (void)cancelAppear
 108 {
 109     [self setWindowVisibility:ITWindowVanishingState];
 110
 111     [_effectTimer invalidate];
 112     _effectTimer = nil;
 113
 114     [self performVanishFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 115 }
 116
 117
 118 /*************************************************************************/
 119 #pragma mark -
 120 #pragma mark VANISH METHODS
 121 /*************************************************************************/
 122
 123 - (void)performVanish
 124 {
 125     __idle = NO;
 126
 127     [self setWindowVisibility:ITWindowVanishingState];
 128     [self performVanishFromProgress:1.0 effectTime:_effectTime];
 129 }
 130
 131 - (void)performVanishFromProgress:(float)progress effectTime:(float)time
 132 {
 133     [_window setEffectProgress:progress];
 134     _effectSpeed = (1.0 / (EFFECT_FPS * time));
 135     if ( progress == 1.0 ) {
 136         [self setSpin:0.0];
 137         [_window setAlphaValue:1.0];
 138     }
 139
 140     [_window orderFront:self];
 141     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
 142                                                     target:self
 143                                                   selector:@selector(vanishStep)
 144                                                   userInfo:nil
 145                                                    repeats:YES];
 146 }
 147
 148 - (void)vanishStep
 149 {
 150     float interSpin = 1.0;
 151     [_window setEffectProgress:([_window effectProgress] - _effectSpeed)];
 152     [_window setEffectProgress:( ([_window effectProgress] > 0.0) ? [_window effectProgress] : 0.0)];
 153     interSpin = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
 154     [self setSpin:interSpin];
 155     [_window setAlphaValue:interSpin];
 156
 157     if ( [_window effectProgress] <= 0.0 ) {
 158         [self vanishFinish];
 159     }
 160 }
 161
 162 - (void)vanishFinish
 163 {
 164     [_effectTimer invalidate];
 165     _effectTimer = nil;
 166     [_window orderOut:self];
 167     [_window setAlphaValue:1.0];
 168     [self setSpin:0.0];
 169     [self setWindowVisibility:ITWindowHiddenState];
 170
 171     __idle = YES;
 172
 173     if ( __shouldReleaseWhenIdle ) {
 174         [self release];
 175     }
 176 }
 177
 178 - (void)cancelVanish
 179 {
 180     [self setWindowVisibility:ITWindowAppearingState];
 181
 182     [_effectTimer invalidate];
 183     _effectTimer = nil;
 184
 185     [self performAppearFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 186 }
 187
 188
 189 /*************************************************************************/
 190 #pragma mark -
 191 #pragma mark PRIVATE METHOD IMPLEMENTATIONS
 192 /*************************************************************************/
 193
 194 - (void)setSpin:(float)progress
 195 {
 196     float radAngle = (progress * 4 * pi);
 197     CGAffineTransform transform;
 198     NSPoint translation;
 199     NSRect winFrame = [_window frame];
 200
 201     translation.x = (winFrame.size.width / 2.0);
 202     translation.y = (winFrame.size.height / 2.0);
 203     transform = CGAffineTransformMakeTranslation(translation.x, translation.y);
 204     transform = CGAffineTransformRotate(transform, radAngle);
 205     transform = CGAffineTransformTranslate(transform, -translation.x, -translation.y);
 206
 207     translation.x = -winFrame.origin.x;
 208     translation.y = winFrame.origin.y + winFrame.size.height - [[NSScreen mainScreen] frame].size.height;
 209
 210     transform = CGAffineTransformTranslate(transform, translation.x, translation.y);
 211     CGSSetWindowTransform([NSApp contextID],
 212                           (CGSWindowID)[_window windowNumber],
 213                           transform);
 214 }
 215
 216 @end