ITPivotWindowEffect.m

   1 #import "ITPivotWindowEffect.h"
   2 #import "ITCoreGraphicsHacks.h"
   3 #import "ITTransientStatusWindow.h"
   4
   5
   6 @interface ITPivotWindowEffect (Private)
   7 - (void)setPivot:(float)angle;
   8 - (void)performAppearFromProgress:(float)progress effectTime:(float)time;
   9 - (void)appearStep;
  10 - (void)appearFinish;
  11 - (void)performVanishFromProgress:(float)progress effectTime:(float)time;
  12 - (void)vanishStep;
  13 - (void)vanishFinish;
  14 @end
  15
  16
  17 @implementation ITPivotWindowEffect
  18
  19
  20 /*************************************************************************/
  21 #pragma mark -
  22 #pragma mark APPEAR METHODS
  23 /*************************************************************************/
  24
  25 - (void)performAppear
  26 {
  27     [self setWindowVisibility:ITTransientStatusWindowAppearingState];
  28     [self performAppearFromProgress:0.0 effectTime:_effectTime];
  29 }
  30
  31 - (void)performAppearFromProgress:(float)progress effectTime:(float)time
  32 {
  33     [_window setEffectProgress:progress];
  34     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  35
  36     if ( progress == 0.0 ) {
  37         [self setPivot:315.0];
  38         [_window setAlphaValue:0.0];
  39     }
  40
  41     [_window orderFront:self];
  42     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  43                                                     target:self
  44                                                   selector:@selector(appearStep)
  45                                                   userInfo:nil
  46                                                    repeats:YES];
  47 }
  48
  49 - (void)appearStep
  50 {
  51     float interPivot = 0.0;
  52     [_window setEffectProgress:([_window effectProgress] + _effectSpeed)];
  53     [_window setEffectProgress:( ([_window effectProgress] < 1.0) ? [_window effectProgress] : 1.0)];
  54     interPivot = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
  55     [self setPivot:((interPivot * 45) + 315)];
  56     [_window setAlphaValue:interPivot];
  57
  58     if ( [_window effectProgress] >= 1.0 ) {
  59         [self appearFinish];
  60     }
  61 }
  62
  63 - (void)appearFinish
  64 {
  65     [_effectTimer invalidate];
  66     _effectTimer = nil;
  67     [self setWindowVisibility:ITTransientStatusWindowVisibleState];
  68 }
  69
  70 - (void)cancelAppear
  71 {
  72     [self setWindowVisibility:ITTransientStatusWindowVanishingState];
  73
  74     [_effectTimer invalidate];
  75     _effectTimer = nil;
  76
  77     [self performVanishFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
  78 }
  79
  80
  81 /*************************************************************************/
  82 #pragma mark -
  83 #pragma mark VANISH METHODS
  84 /*************************************************************************/
  85
  86 - (void)performVanish
  87 {
  88     [self setWindowVisibility:ITTransientStatusWindowVanishingState];
  89     [self performVanishFromProgress:1.0 effectTime:_effectTime];
  90 }
  91
  92 - (void)performVanishFromProgress:(float)progress effectTime:(float)time
  93 {
  94     [_window setEffectProgress:progress];
  95     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  96     if ( progress == 1.0 ) {
  97         [self setPivot:0.0];
  98         [_window setAlphaValue:1.0];
  99     }
 100
 101     [_window orderFront:self];
 102     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
 103                                                     target:self
 104                                                   selector:@selector(vanishStep)
 105                                                   userInfo:nil
 106                                                    repeats:YES];
 107 }
 108
 109 - (void)vanishStep
 110 {
 111     float interPivot = 1.0;
 112     [_window setEffectProgress:([_window effectProgress] - _effectSpeed)];
 113     [_window setEffectProgress:( ([_window effectProgress] > 0.0) ? [_window effectProgress] : 0.0)];
 114     interPivot = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
 115     [self setPivot:((interPivot * 45) + 315)];
 116     [_window setAlphaValue:interPivot];
 117
 118     if ( [_window effectProgress] <= 0.0 ) {
 119         [self vanishFinish];
 120     }
 121 }
 122
 123 - (void)vanishFinish
 124 {
 125     [_effectTimer invalidate];
 126     _effectTimer = nil;
 127     [_window orderOut:self];
 128     [_window setAlphaValue:1.0];
 129     [self setWindowVisibility:ITTransientStatusWindowHiddenState];
 130 }
 131
 132 - (void)cancelVanish
 133 {
 134     [self setWindowVisibility:ITTransientStatusWindowAppearingState];
 135
 136     [_effectTimer invalidate];
 137     _effectTimer = nil;
 138
 139     [self performAppearFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 140 }
 141
 142
 143 /*************************************************************************/
 144 #pragma mark -
 145 #pragma mark PRIVATE METHOD IMPLEMENTATIONS
 146 /*************************************************************************/
 147
 148 - (void)setPivot:(float)angle
 149 {
 150     float degAngle = (angle * (pi / 180));
 151
 152     CGAffineTransform transform = CGAffineTransformMakeRotation(degAngle);
 153
 154  // Set pivot rotation point
 155     transform.tx = -32.0;
 156     transform.ty = [_window frame].size.height + 32.0;
 157
 158     CGSSetWindowTransform([NSApp contextID],
 159                           (CGSWindowID)[_window windowNumber],
 160                           CGAffineTransformTranslate(transform,
 161                                                      (([_window frame].origin.x - 32.0) * -1),
 162                                                      (([[_window screen] frame].size.height - ([_window frame].origin.y) + 32.0) * -1) ));
 163 }
 164
 165
 166 @end