git.sesse.net Git - vlc/blob - modules/gui/macosx/embeddedwindow.m

   1 /*****************************************************************************
   2  * embeddedwindow.m: MacOS X interface module
   3  *****************************************************************************
   4  * Copyright (C) 2005-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Benjamin Pracht <bigben at videolan dot org>
   8  *          Felix Paul Kühne <fkuehne at videolan dot org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 /* DisableScreenUpdates, SetSystemUIMode, ... */
  30 #import <QuickTime/QuickTime.h>
  31
  32 #import "intf.h"
  33 #import "controls.h"
  34 #import "vout.h"
  35 #import "embeddedwindow.h"
  36 #import "fspanel.h"
  37
  38 /*****************************************************************************
  39  * VLCEmbeddedWindow Implementation
  40  *****************************************************************************/
  41
  42 @implementation VLCEmbeddedWindow
  43
  44 - (void)awakeFromNib
  45 {
  46     [self setDelegate: self];
  47
  48     [o_btn_backward setToolTip: _NS("Rewind")];
  49     [o_btn_forward setToolTip: _NS("Fast Forward")];
  50     [o_btn_fullscreen setToolTip: _NS("Fullscreen")];
  51     [o_btn_play setToolTip: _NS("Play")];
  52     [o_slider setToolTip: _NS("Position")];
  53
  54     o_img_play = [NSImage imageNamed: @"play_embedded"];
  55     o_img_pause = [NSImage imageNamed: @"pause_embedded"];
  56     [self controlTintChanged];
  57     [[NSNotificationCenter defaultCenter] addObserver: self
  58                                              selector: @selector( controlTintChanged )
  59                                                  name: NSControlTintDidChangeNotification
  60                                                object: nil];
  61
  62     /* Useful to save o_view frame in fullscreen mode */
  63     o_temp_view = [[NSView alloc] init];
  64     [o_temp_view setAutoresizingMask:NSViewHeightSizable | NSViewWidthSizable];
  65
  66     o_fullscreen_window = nil;
  67     o_fullscreen_anim1 = o_fullscreen_anim2 = nil;
  68
  69     /* Not fullscreen when we wake up */
  70     [o_btn_fullscreen setState: NO];
  71     b_fullscreen = NO;
  72
  73     [self setMovableByWindowBackground:YES];
  74
  75     [self setDelegate:self];
  76
  77     /* Make sure setVisible: returns NO */
  78     [self orderOut:self];
  79     b_window_is_invisible = YES;
  80     videoRatio = NSMakeSize( 0., 0. );
  81 }
  82
  83 - (void)controlTintChanged
  84 {
  85     BOOL b_playing = NO;
  86     if( [o_btn_play alternateImage] == o_img_play_pressed )
  87         b_playing = YES;
  88
  89     if( [NSColor currentControlTint] == NSGraphiteControlTint )
  90     {
  91         o_img_play_pressed = [NSImage imageNamed: @"play_embedded_graphite"];
  92         o_img_pause_pressed = [NSImage imageNamed: @"pause_embedded_graphite"];
  93         [o_btn_backward setAlternateImage: [NSImage imageNamed: @"skip_previous_embedded_graphite"]];
  94         [o_btn_forward setAlternateImage: [NSImage imageNamed: @"skip_forward_embedded_graphite"]];
  95         [o_btn_fullscreen setAlternateImage: [NSImage imageNamed: @"fullscreen_graphite"]];
  96     }
  97     else
  98     {
  99         o_img_play_pressed = [NSImage imageNamed: @"play_embedded_blue"];
 100         o_img_pause_pressed = [NSImage imageNamed: @"pause_embedded_blue"];
 101         [o_btn_backward setAlternateImage: [NSImage imageNamed: @"skip_previous_embedded_blue"]];
 102         [o_btn_forward setAlternateImage: [NSImage imageNamed: @"skip_forward_embedded_blue"]];
 103         [o_btn_fullscreen setAlternateImage: [NSImage imageNamed: @"fullscreen_blue"]];
 104     }
 105
 106     if( b_playing )
 107         [o_btn_play setAlternateImage: o_img_play_pressed];
 108     else
 109         [o_btn_play setAlternateImage: o_img_pause_pressed];
 110 }
 111
 112 - (void)dealloc
 113 {
 114     [[NSNotificationCenter defaultCenter] removeObserver: self];
 115     [o_img_play release];
 116     [o_img_play_pressed release];
 117     [o_img_pause release];
 118     [o_img_pause_pressed release];
 119
 120     [super dealloc];
 121 }
 122
 123 - (void)setTime:(NSString *)o_arg_time position:(float)f_position
 124 {
 125     [o_time setStringValue: o_arg_time];
 126     [o_slider setFloatValue: f_position];
 127 }
 128
 129 - (void)playStatusUpdated:(int)i_status
 130 {
 131     if( i_status == PLAYING_S )
 132     {
 133         [o_btn_play setImage: o_img_pause];
 134         [o_btn_play setAlternateImage: o_img_pause_pressed];
 135         [o_btn_play setToolTip: _NS("Pause")];
 136     }
 137     else
 138     {
 139         [o_btn_play setImage: o_img_play];
 140         [o_btn_play setAlternateImage: o_img_play_pressed];
 141         [o_btn_play setToolTip: _NS("Play")];
 142     }
 143 }
 144
 145 - (void)setSeekable:(BOOL)b_seekable
 146 {
 147     [o_btn_forward setEnabled: b_seekable];
 148     [o_btn_backward setEnabled: b_seekable];
 149     [o_slider setEnabled: b_seekable];
 150 }
 151
 152 - (BOOL)windowShouldZoom:(NSWindow *)sender toFrame:(NSRect)newFrame
 153 {
 154     [self setFrame: newFrame display: YES animate: YES];
 155     return YES;
 156 }
 157
 158 - (BOOL)windowShouldClose:(id)sender
 159 {
 160     playlist_t * p_playlist = pl_Yield( VLCIntf );
 161
 162     playlist_Stop( p_playlist );
 163     vlc_object_release( p_playlist );
 164     return YES;
 165 }
 166
 167 - (NSView *)mainView
 168 {
 169     if (o_fullscreen_window)
 170         return o_temp_view;
 171     else
 172         return o_view;
 173 }
 174
 175 - (void)setVideoRatio:(NSSize)ratio
 176 {
 177     videoRatio = ratio;
 178 }
 179
 180 - (NSSize)windowWillResize:(NSWindow *)window toSize:(NSSize)proposedFrameSize
 181 {
 182     if( videoRatio.height == 0. || videoRatio.width == 0. )
 183         return proposedFrameSize;
 184
 185     NSRect viewRect = [o_view convertRect:[o_view bounds] toView: nil];
 186     NSRect contentRect = [self contentRectForFrameRect:[self frame]];
 187     float marginy = viewRect.origin.y + [self frame].size.height - contentRect.size.height;
 188     float marginx = contentRect.size.width - viewRect.size.width;
 189     proposedFrameSize.height = (proposedFrameSize.width - marginx) * videoRatio.height / videoRatio.width + marginy;
 190
 191     return proposedFrameSize;
 192 }
 193
 194 /*****************************************************************************
 195  * Fullscreen support
 196  */
 197
 198 - (BOOL)isFullscreen
 199 {
 200     return b_fullscreen;
 201 }
 202
 203 - (void)lockFullscreenAnimation
 204 {
 205     [o_animation_lock lock];
 206 }
 207
 208 - (void)unlockFullscreenAnimation
 209 {
 210     [o_animation_lock unlock];
 211 }
 212
 213 - (void)enterFullscreen
 214 {
 215     NSMutableDictionary *dict1, *dict2;
 216     NSScreen *screen;
 217     NSRect screen_rect;
 218     NSRect rect;
 219     vout_thread_t *p_vout = vlc_object_find( VLCIntf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
 220     BOOL blackout_other_displays = config_GetInt( VLCIntf, "macosx-black" );
 221
 222     screen = [NSScreen screenWithDisplayID:(CGDirectDisplayID)var_GetInteger( p_vout, "video-device" )];
 223
 224     [self lockFullscreenAnimation];
 225
 226     if (!screen)
 227     {
 228         msg_Dbg( p_vout, "chosen screen isn't present, using current screen for fullscreen mode" );
 229         screen = [self screen];
 230     }
 231     if (!screen)
 232     {
 233         msg_Dbg( p_vout, "Using deepest screen" );
 234         screen = [NSScreen deepestScreen];
 235     }
 236
 237     vlc_object_release( p_vout );
 238
 239     screen_rect = [screen frame];
 240
 241     [o_btn_fullscreen setState: YES];
 242
 243     [NSCursor setHiddenUntilMouseMoves: YES];
 244
 245     if( blackout_other_displays )
 246         [screen blackoutOtherScreens];
 247
 248     /* Only create the o_fullscreen_window if we are not in the middle of the zooming animation */
 249     if (!o_fullscreen_window)
 250     {
 251         /* We can't change the styleMask of an already created NSWindow, so we create an other window, and do eye catching stuff */
 252
 253         rect = [[o_view superview] convertRect: [o_view frame] toView: nil]; /* Convert to Window base coord */
 254         rect.origin.x += [self frame].origin.x;
 255         rect.origin.y += [self frame].origin.y;
 256         o_fullscreen_window = [[VLCWindow alloc] initWithContentRect:rect styleMask: NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:YES];
 257         [o_fullscreen_window setBackgroundColor: [NSColor blackColor]];
 258         [o_fullscreen_window setCanBecomeKeyWindow: YES];
 259
 260         if (![self isVisible] || [self alphaValue] == 0.0 || MACOS_VERSION < 10.4f)
 261         {
 262             /* We don't animate if we are not visible or if we are running on
 263              * Mac OS X <10.4 which doesn't support NSAnimation, instead we
 264              * simply fade the display */
 265             CGDisplayFadeReservationToken token;
 266
 267             CGAcquireDisplayFadeReservation(kCGMaxDisplayReservationInterval, &token);
 268             CGDisplayFade( token, 0.5, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0, 0, 0, YES );
 269
 270             if ([screen isMainScreen])
 271                 SetSystemUIMode( kUIModeAllHidden, kUIOptionAutoShowMenuBar);
 272
 273             [[self contentView] replaceSubview:o_view with:o_temp_view];
 274             [o_temp_view setFrame:[o_view frame]];
 275             [o_fullscreen_window setContentView:o_view];
 276
 277             [o_fullscreen_window makeKeyAndOrderFront:self];
 278
 279             [o_fullscreen_window makeKeyAndOrderFront:self];
 280             [o_fullscreen_window orderFront:self animate:YES];
 281
 282             [o_fullscreen_window setFrame:screen_rect display:YES];
 283
 284             CGDisplayFade( token, 0.3, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0, 0, 0, NO );
 285             CGReleaseDisplayFadeReservation( token);
 286
 287             /* Will release the lock */
 288             [self hasBecomeFullscreen];
 289
 290             return;
 291         }
 292
 293         /* Make sure we don't see the o_view disappearing of the screen during this operation */
 294         DisableScreenUpdates();
 295         [[self contentView] replaceSubview:o_view with:o_temp_view];
 296         [o_temp_view setFrame:[o_view frame]];
 297         [o_fullscreen_window setContentView:o_view];
 298         [o_fullscreen_window makeKeyAndOrderFront:self];
 299         EnableScreenUpdates();
 300     }
 301
 302     if (MACOS_VERSION < 10.4f)
 303     {
 304         /* We were already fullscreen nothing to do when NSAnimation
 305          * is not supported */
 306         [self unlockFullscreenAnimation];
 307         return;
 308     }
 309
 310     /* We are in fullscreen (and no animation is running) */
 311     if (b_fullscreen)
 312     {
 313         /* Make sure we are hidden */
 314         [super orderOut: self];
 315         [self unlockFullscreenAnimation];
 316         return;
 317     }
 318
 319     if (o_fullscreen_anim1)
 320     {
 321         [o_fullscreen_anim1 stopAnimation];
 322         [o_fullscreen_anim1 release];
 323     }
 324     if (o_fullscreen_anim2)
 325     {
 326         [o_fullscreen_anim2 stopAnimation];
 327         [o_fullscreen_anim2 release];
 328     }
 329
 330     if ([screen isMainScreen])
 331         SetSystemUIMode( kUIModeAllHidden, kUIOptionAutoShowMenuBar);
 332
 333     dict1 = [[NSMutableDictionary alloc] initWithCapacity:2];
 334     dict2 = [[NSMutableDictionary alloc] initWithCapacity:3];
 335
 336     [dict1 setObject:self forKey:NSViewAnimationTargetKey];
 337     [dict1 setObject:NSViewAnimationFadeOutEffect forKey:NSViewAnimationEffectKey];
 338
 339     [dict2 setObject:o_fullscreen_window forKey:NSViewAnimationTargetKey];
 340     [dict2 setObject:[NSValue valueWithRect:[o_fullscreen_window frame]] forKey:NSViewAnimationStartFrameKey];
 341     [dict2 setObject:[NSValue valueWithRect:screen_rect] forKey:NSViewAnimationEndFrameKey];
 342
 343     /* Strategy with NSAnimation allocation:
 344         - Keep at most 2 animation at a time
 345         - leaveFullscreen/enterFullscreen are the only responsible for releasing and alloc-ing
 346     */
 347     o_fullscreen_anim1 = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray arrayWithObjects:dict1, nil]];
 348     o_fullscreen_anim2 = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray arrayWithObjects:dict2, nil]];
 349
 350     [dict1 release];
 351     [dict2 release];
 352
 353     [o_fullscreen_anim1 setAnimationBlockingMode: NSAnimationNonblocking];
 354     [o_fullscreen_anim1 setDuration: 0.3];
 355     [o_fullscreen_anim1 setFrameRate: 30];
 356     [o_fullscreen_anim2 setAnimationBlockingMode: NSAnimationNonblocking];
 357     [o_fullscreen_anim2 setDuration: 0.2];
 358     [o_fullscreen_anim2 setFrameRate: 30];
 359
 360     [o_fullscreen_anim2 setDelegate: self];
 361     [o_fullscreen_anim2 startWhenAnimation: o_fullscreen_anim1 reachesProgress: 1.0];
 362
 363     [o_fullscreen_anim1 startAnimation];
 364     /* fullscreenAnimation will be unlocked when animation ends */
 365 }
 366
 367 - (void)hasBecomeFullscreen
 368 {
 369     [o_fullscreen_window makeFirstResponder: [[[VLCMain sharedInstance] getControls] getVoutView]];
 370
 371     [o_fullscreen_window makeKeyWindow];
 372     [o_fullscreen_window setAcceptsMouseMovedEvents: TRUE];
 373
 374     /* tell the fspanel to move itself to front next time it's triggered */
 375     [[[[VLCMain sharedInstance] getControls] getFSPanel] setVoutWasUpdated: (int)[[o_fullscreen_window screen] displayID]];
 376
 377     if([self isVisible])
 378         [super orderOut: self];
 379
 380     [[[[VLCMain sharedInstance] getControls] getFSPanel] setActive: nil];
 381
 382     b_fullscreen = YES;
 383     [self unlockFullscreenAnimation];
 384 }
 385
 386 - (void)leaveFullscreen
 387 {
 388     [self leaveFullscreenAndFadeOut: NO];
 389 }
 390
 391 - (void)leaveFullscreenAndFadeOut: (BOOL)fadeout
 392 {
 393     NSMutableDictionary *dict1, *dict2;
 394     NSRect frame;
 395
 396     [self lockFullscreenAnimation];
 397
 398     b_fullscreen = NO;
 399     [o_btn_fullscreen setState: NO];
 400
 401     /* We always try to do so */
 402     [NSScreen unblackoutScreens];
 403
 404     /* Don't do anything if o_fullscreen_window is already closed */
 405     if (!o_fullscreen_window)
 406     {
 407         [self unlockFullscreenAnimation];
 408         return;
 409     }
 410
 411     if (fadeout || MACOS_VERSION < 10.4f)
 412     {
 413         /* We don't animate if we are not visible or if we are running on
 414         * Mac OS X <10.4 which doesn't support NSAnimation, instead we
 415         * simply fade the display */
 416         CGDisplayFadeReservationToken token;
 417
 418         CGAcquireDisplayFadeReservation(kCGMaxDisplayReservationInterval, &token);
 419         CGDisplayFade( token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0, 0, 0, YES );
 420
 421         [[[[VLCMain sharedInstance] getControls] getFSPanel] setNonActive: nil];
 422         SetSystemUIMode( kUIModeNormal, kUIOptionAutoShowMenuBar);
 423
 424         /* Will release the lock */
 425         [self hasEndedFullscreen];
 426
 427         /* Our window is hidden, and might be faded. We need to workaround that, so note it
 428          * here */
 429         b_window_is_invisible = YES;
 430
 431         CGDisplayFade( token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0, 0, 0, NO );
 432         CGReleaseDisplayFadeReservation( token);
 433         return;
 434     }
 435
 436     [self setAlphaValue: 0.0];
 437     [self orderFront: self];
 438
 439     [[[[VLCMain sharedInstance] getControls] getFSPanel] setNonActive: nil];
 440     SetSystemUIMode( kUIModeNormal, kUIOptionAutoShowMenuBar);
 441
 442     if (o_fullscreen_anim1)
 443     {
 444         [o_fullscreen_anim1 stopAnimation];
 445         [o_fullscreen_anim1 release];
 446     }
 447     if (o_fullscreen_anim2)
 448     {
 449         [o_fullscreen_anim2 stopAnimation];
 450         [o_fullscreen_anim2 release];
 451     }
 452
 453     frame = [[o_temp_view superview] convertRect: [o_temp_view frame] toView: nil]; /* Convert to Window base coord */
 454     frame.origin.x += [self frame].origin.x;
 455     frame.origin.y += [self frame].origin.y;
 456
 457     dict2 = [[NSMutableDictionary alloc] initWithCapacity:2];
 458     [dict2 setObject:self forKey:NSViewAnimationTargetKey];
 459     [dict2 setObject:NSViewAnimationFadeInEffect forKey:NSViewAnimationEffectKey];
 460
 461     o_fullscreen_anim2 = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray arrayWithObjects:dict2, nil]];
 462     [dict2 release];
 463
 464     [o_fullscreen_anim2 setAnimationBlockingMode: NSAnimationNonblocking];
 465     [o_fullscreen_anim2 setDuration: 0.3];
 466     [o_fullscreen_anim2 setFrameRate: 30];
 467
 468     [o_fullscreen_anim2 setDelegate: self];
 469
 470     dict1 = [[NSMutableDictionary alloc] initWithCapacity:3];
 471
 472     [dict1 setObject:o_fullscreen_window forKey:NSViewAnimationTargetKey];
 473     [dict1 setObject:[NSValue valueWithRect:[o_fullscreen_window frame]] forKey:NSViewAnimationStartFrameKey];
 474     [dict1 setObject:[NSValue valueWithRect:frame] forKey:NSViewAnimationEndFrameKey];
 475
 476     o_fullscreen_anim1 = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray arrayWithObjects:dict1, nil]];
 477     [dict1 release];
 478
 479     [o_fullscreen_anim1 setAnimationBlockingMode: NSAnimationNonblocking];
 480     [o_fullscreen_anim1 setDuration: 0.2];
 481     [o_fullscreen_anim1 setFrameRate: 30];
 482     [o_fullscreen_anim2 startWhenAnimation: o_fullscreen_anim1 reachesProgress: 1.0];
 483
 484     /* Make sure o_fullscreen_window is the frontmost window */
 485     [o_fullscreen_window orderFront: self];
 486
 487     [o_fullscreen_anim1 startAnimation];
 488     /* fullscreenAnimation will be unlocked when animation ends */
 489 }
 490
 491 - (void)hasEndedFullscreen
 492 {
 493     /* This function is private and should be only triggered at the end of the fullscreen change animation */
 494     /* Make sure we don't see the o_view disappearing of the screen during this operation */
 495     DisableScreenUpdates();
 496     [o_view retain];
 497     [o_view removeFromSuperviewWithoutNeedingDisplay];
 498     [[self contentView] replaceSubview:o_temp_view with:o_view];
 499     [o_view release];
 500     [o_view setFrame:[o_temp_view frame]];
 501     [self makeFirstResponder: o_view];
 502     if ([self isVisible])
 503         [super makeKeyAndOrderFront:self]; /* our version contains a workaround */
 504     [o_fullscreen_window orderOut: self];
 505     EnableScreenUpdates();
 506
 507     [o_fullscreen_window release];
 508     o_fullscreen_window = nil;
 509     [self unlockFullscreenAnimation];
 510 }
 511
 512 - (void)animationDidEnd:(NSAnimation*)animation
 513 {
 514     NSArray *viewAnimations;
 515
 516     if ([animation currentValue] < 1.0)
 517         return;
 518
 519     /* Fullscreen ended or started (we are a delegate only for leaveFullscreen's/enterFullscren's anim2) */
 520     viewAnimations = [o_fullscreen_anim2 viewAnimations];
 521     if ([viewAnimations count] >=1 &&
 522         [[[viewAnimations objectAtIndex: 0] objectForKey: NSViewAnimationEffectKey] isEqualToString:NSViewAnimationFadeInEffect])
 523     {
 524         /* Fullscreen ended */
 525         [self hasEndedFullscreen];
 526     }
 527     else
 528     {
 529         /* Fullscreen started */
 530         [self hasBecomeFullscreen];
 531     }
 532 }
 533
 534 - (void)orderOut: (id)sender
 535 {
 536     [super orderOut: sender];
 537
 538     /* Make sure we leave fullscreen */
 539     [self leaveFullscreenAndFadeOut: YES];
 540 }
 541
 542 - (void)makeKeyAndOrderFront: (id)sender
 543 {
 544     /* Hack
 545      * when we exit fullscreen and fade out, we may endup in
 546      * having a window that is faded. We can't have it fade in unless we
 547      * animate again. */
 548
 549     if(!b_window_is_invisible)
 550     {
 551         /* Make sure we don't do it too much */
 552         [super makeKeyAndOrderFront: sender];
 553         return;
 554     }
 555
 556     [super setAlphaValue:0.0f];
 557     [super makeKeyAndOrderFront: sender];
 558
 559     NSMutableDictionary * dict = [[[NSMutableDictionary alloc] initWithCapacity:2] autorelease];
 560     [dict setObject:self forKey:NSViewAnimationTargetKey];
 561     [dict setObject:NSViewAnimationFadeInEffect forKey:NSViewAnimationEffectKey];
 562
 563     NSViewAnimation * anim = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray arrayWithObject:dict]];
 564
 565     [anim setAnimationBlockingMode: NSAnimationNonblocking];
 566     [anim setDuration: 0.1];
 567     [anim setFrameRate: 30];
 568
 569     [anim startAnimation];
 570     b_window_is_invisible = NO;
 571
 572     /* fullscreenAnimation will be unlocked when animation ends */
 573 }
 574
 575
 576
 577 /* Make sure setFrame gets executed on main thread especially if we are animating.
 578  * (Thus we won't block the video output thread) */
 579 - (void)setFrame:(NSRect)frame display:(BOOL)display animate:(BOOL)animate
 580 {
 581     struct { NSRect frame; BOOL display; BOOL animate;} args;
 582     NSData *packedargs;
 583
 584     args.frame = frame;
 585     args.display = display;
 586     args.animate = animate;
 587
 588     packedargs = [NSData dataWithBytes:&args length:sizeof(args)];
 589
 590     [self performSelectorOnMainThread:@selector(setFrameOnMainThread:)
 591                     withObject: packedargs waitUntilDone: YES];
 592 }
 593
 594 - (void)setFrameOnMainThread:(NSData*)packedargs
 595 {
 596     struct args { NSRect frame; BOOL display; BOOL animate; } * args = (struct args*)[packedargs bytes];
 597
 598     [super setFrame: args->frame display: args->display animate:args->animate];
 599 }
 600 @end