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     __idle = NO;
  28
  29     [self setWindowVisibility:ITWindowAppearingState];
  30     [self performAppearFromProgress:0.0 effectTime:_effectTime];
  31 }
  32
  33 - (void)performAppearFromProgress:(float)progress effectTime:(float)time
  34 {
  35     [_window setEffectProgress:progress];
  36     _effectSpeed = (1.0 / (EFFECT_FPS * time));
  37
  38     if ( progress == 0.0 ) {
  39         [self setPivot:315.0];
  40         [_window setAlphaValue:0.0];
  41     }
  42
  43     [_window orderFront:self];
  44     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
  45                                                     target:self
  46                                                   selector:@selector(appearStep)
  47                                                   userInfo:nil
  48                                                    repeats:YES];
  49 }
  50
  51 - (void)appearStep
  52 {
  53     float interPivot = 0.0;
  54     [_window setEffectProgress:([_window effectProgress] + _effectSpeed)];
  55     [_window setEffectProgress:( ([_window effectProgress] < 1.0) ? [_window effectProgress] : 1.0)];
  56     interPivot = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
  57     [self setPivot:((interPivot * 45) + 315)];
  58     [_window setAlphaValue:interPivot];
  59
  60     if ( [_window effectProgress] >= 1.0 ) {
  61         [self appearFinish];
  62     }
  63 }
  64
  65 - (void)appearFinish
  66 {
  67     [_effectTimer invalidate];
  68     _effectTimer = nil;
  69     [self setWindowVisibility:ITWindowVisibleState];
  70
  71     __idle = YES;
  72
  73     if ( __shouldReleaseWhenIdle ) {
  74         [self release];
  75     }
  76 }
  77
  78 - (void)cancelAppear
  79 {
  80     [self setWindowVisibility:ITWindowVanishingState];
  81
  82     [_effectTimer invalidate];
  83     _effectTimer = nil;
  84
  85     [self performVanishFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
  86 }
  87
  88
  89 /*************************************************************************/
  90 #pragma mark -
  91 #pragma mark VANISH METHODS
  92 /*************************************************************************/
  93
  94 - (void)performVanish
  95 {
  96     __idle = NO;
  97
  98     [self setWindowVisibility:ITWindowVanishingState];
  99     [self performVanishFromProgress:1.0 effectTime:_effectTime];
 100 }
 101
 102 - (void)performVanishFromProgress:(float)progress effectTime:(float)time
 103 {
 104     [_window setEffectProgress:progress];
 105     _effectSpeed = (1.0 / (EFFECT_FPS * time));
 106     if ( progress == 1.0 ) {
 107         [self setPivot:0.0];
 108         [_window setAlphaValue:1.0];
 109     }
 110
 111     [_window orderFront:self];
 112     _effectTimer = [NSTimer scheduledTimerWithTimeInterval:(1.0 / EFFECT_FPS)
 113                                                     target:self
 114                                                   selector:@selector(vanishStep)
 115                                                   userInfo:nil
 116                                                    repeats:YES];
 117 }
 118
 119 - (void)vanishStep
 120 {
 121     float interPivot = 1.0;
 122     [_window setEffectProgress:([_window effectProgress] - _effectSpeed)];
 123     [_window setEffectProgress:( ([_window effectProgress] > 0.0) ? [_window effectProgress] : 0.0)];
 124     interPivot = (( sin(([_window effectProgress] * pi) - (pi / 2)) + 1 ) / 2);
 125     [self setPivot:((interPivot * 45) + 315)];
 126     [_window setAlphaValue:interPivot];
 127
 128     if ( [_window effectProgress] <= 0.0 ) {
 129         [self vanishFinish];
 130     }
 131 }
 132
 133 - (void)vanishFinish
 134 {
 135     [_effectTimer invalidate];
 136     _effectTimer = nil;
 137     [_window orderOut:self];
 138     [_window setAlphaValue:1.0];
 139     [self setPivot:0.0];
 140     [self setWindowVisibility:ITWindowHiddenState];
 141
 142     __idle = YES;
 143
 144     if ( __shouldReleaseWhenIdle ) {
 145         [self release];
 146     }
 147 }
 148
 149 - (void)cancelVanish
 150 {
 151     [self setWindowVisibility:ITWindowAppearingState];
 152
 153     [_effectTimer invalidate];
 154     _effectTimer = nil;
 155
 156     [self performAppearFromProgress:[_window effectProgress] effectTime:(_effectTime / 3.5)];
 157 }
 158
 159
 160 /*************************************************************************/
 161 #pragma mark -
 162 #pragma mark PRIVATE METHOD IMPLEMENTATIONS
 163 /*************************************************************************/
 164
 165 - (void)setPivot:(float)angle
 166 {
 167     float degAngle = (angle * (pi / 180));
 168
 169     CGAffineTransform transform = CGAffineTransformMakeRotation(degAngle);
 170
 171  // Set pivot rotation point
 172     transform.tx = -( 32.0 + [[_window screen] visibleFrame].origin.x );
 173     transform.ty = ( [_window frame].size.height + 32.0 + [[_window screen] visibleFrame].origin.y );
 174
 175     CGSSetWindowTransform([NSApp contextID],
 176                           (CGSWindowID)[_window windowNumber],
 177                           CGAffineTransformTranslate( transform,
 178                                                      -( [_window frame].origin.x - (32.0 + [[_window screen] visibleFrame].origin.x) ),
 179                                                      -( [[_window screen] frame].size.height - ([_window frame].origin.y) + 32.0 + [[_window screen] visibleFrame].origin.y) ) );
 180 }
 181
 182
 183 @end