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

   1 /*****************************************************************************
   2  * fspanel.m: MacOS X full screen panel
   3  *****************************************************************************
   4  * Copyright (C) 2006-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Jérôme Decoodt <djc 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 #import "intf.h"
  29 #import "CoreInteraction.h"
  30 #import "vout.h"
  31 #import "misc.h"
  32 #import "fspanel.h"
  33 #import "MainWindow.h"
  34
  35 @interface VLCFSPanel ()
  36 - (void)hideMouse;
  37 @end
  38
  39 /*****************************************************************************
  40  * VLCFSPanel
  41  *****************************************************************************/
  42 @implementation VLCFSPanel
  43 /* We override this initializer so we can set the NSBorderlessWindowMask styleMask, and set a few other important settings */
  44 - (id)initWithContentRect:(NSRect)contentRect
  45                 styleMask:(NSUInteger)aStyle
  46                   backing:(NSBackingStoreType)bufferingType
  47                     defer:(BOOL)flag
  48 {
  49     id win = [super initWithContentRect:contentRect styleMask:NSTexturedBackgroundWindowMask backing:bufferingType defer:flag];
  50     [win setOpaque:NO];
  51     [win setHasShadow: NO];
  52     [win setBackgroundColor:[NSColor clearColor]];
  53
  54     /* let the window sit on top of everything else and start out completely transparent */
  55     [win setLevel:NSModalPanelWindowLevel];
  56     i_device = 0;
  57     [win center];
  58     hideAgainTimer = fadeTimer = nil;
  59     [self setNonActive:nil];
  60     return win;
  61 }
  62
  63 - (void)awakeFromNib
  64 {
  65     [self setContentView:[[VLCFSPanelView alloc] initWithFrame: [self frame]]];
  66     BOOL isInside = (NSPointInRect([NSEvent mouseLocation],[self frame]));
  67     [[self contentView] addTrackingRect:[[self contentView] bounds] owner:self userData:nil assumeInside:isInside];
  68     if (isInside)
  69         [self mouseEntered:NULL];
  70     if (!isInside)
  71         [self mouseExited:NULL];
  72
  73     /* get a notification if VLC isn't the active app anymore */
  74     [[NSNotificationCenter defaultCenter]
  75     addObserver: self
  76        selector: @selector(setNonActive:)
  77            name: NSApplicationDidResignActiveNotification
  78          object: NSApp];
  79
  80     /* get a notification if VLC is the active app again */
  81     [[NSNotificationCenter defaultCenter]
  82     addObserver: self
  83        selector: @selector(setActive:)
  84            name: NSApplicationDidBecomeActiveNotification
  85          object: NSApp];
  86 }
  87
  88 /* make sure that we don't become key, since we can't handle hotkeys */
  89 - (BOOL)canBecomeKeyWindow
  90 {
  91     return NO;
  92 }
  93
  94 - (BOOL)mouseDownCanMoveWindow
  95 {
  96     return YES;
  97 }
  98
  99 -(void)dealloc
 100 {
 101     [[NSNotificationCenter defaultCenter] removeObserver: self];
 102
 103     if( hideAgainTimer )
 104     {
 105         [hideAgainTimer invalidate];
 106         [hideAgainTimer release];
 107     }
 108     [self setFadeTimer:nil];
 109     [super dealloc];
 110 }
 111
 112 -(void)center
 113 {
 114     /* centre the panel in the lower third of the screen */
 115     NSPoint theCoordinate;
 116     NSRect theScreensFrame;
 117     NSRect theWindowsFrame;
 118     NSScreen *screen;
 119
 120     /* user-defined screen */
 121     screen = [NSScreen screenWithDisplayID: (CGDirectDisplayID)i_device];
 122
 123     if (!screen)
 124     {
 125         /* invalid preferences or none specified, using main screen */
 126         screen = [NSScreen mainScreen];
 127     }
 128
 129     theScreensFrame = [screen frame];
 130
 131     theWindowsFrame = [self frame];
 132
 133     theCoordinate.x = (theScreensFrame.size.width - theWindowsFrame.size.width) / 2 + theScreensFrame.origin.x;
 134     theCoordinate.y = (theScreensFrame.size.height / 3) - theWindowsFrame.size.height + theScreensFrame.origin.y;
 135     [self setFrameTopLeftPoint: theCoordinate];
 136 }
 137
 138 - (void)setPlay
 139 {
 140     [[self contentView] setPlay];
 141 }
 142
 143 - (void)setPause
 144 {
 145     [[self contentView] setPause];
 146 }
 147
 148 - (void)setStreamTitle:(NSString *)o_title
 149 {
 150     [[self contentView] setStreamTitle: o_title];
 151 }
 152
 153 - (void)setStreamPos:(float) f_pos andTime:(NSString *)o_time
 154 {
 155     [[self contentView] setStreamPos:f_pos andTime: o_time];
 156 }
 157
 158 - (void)setSeekable:(BOOL) b_seekable
 159 {
 160     [[self contentView] setSeekable: b_seekable];
 161 }
 162
 163 - (void)setVolumeLevel: (float)f_volumeLevel
 164 {
 165     [[self contentView] setVolumeLevel: f_volumeLevel];
 166 }
 167
 168 - (void)setNonActive:(id)noData
 169 {
 170     b_nonActive = YES;
 171     [self orderOut: self];
 172
 173     /* here's fadeOut, just without visibly fading */
 174     b_displayed = NO;
 175     [self setAlphaValue:0.0];
 176     [self setFadeTimer:nil];
 177     b_fadeQueued = NO;
 178 }
 179
 180 - (void)setActive:(id)noData
 181 {
 182     if( [[VLCCoreInteraction sharedInstance] voutView] != nil )
 183     {
 184         if( [[[VLCCoreInteraction sharedInstance] voutView] isFullscreen] )
 185         {
 186             b_nonActive = NO;
 187             [self fadeIn];
 188         }
 189     }
 190 }
 191
 192 /* This routine is called repeatedly to fade in the window */
 193 - (void)focus:(NSTimer *)timer
 194 {
 195     /* we need to push ourselves to front if the vout window was closed since our last display */
 196     if( b_voutWasUpdated )
 197     {
 198         [self orderFront: self];
 199         b_voutWasUpdated = NO;
 200     }
 201
 202     if( [self alphaValue] < 1.0 )
 203         [self setAlphaValue:[self alphaValue]+0.1];
 204     if( [self alphaValue] >= 1.0 )
 205     {
 206         b_displayed = YES;
 207         [self setAlphaValue: 1.0];
 208         [self setFadeTimer:nil];
 209         if( b_fadeQueued )
 210         {
 211             b_fadeQueued=NO;
 212             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(unfocus:) userInfo:NULL repeats:YES]];
 213         }
 214     }
 215 }
 216
 217 /* This routine is called repeatedly to hide the window */
 218 - (void)unfocus:(NSTimer *)timer
 219 {
 220     if( b_keptVisible )
 221     {
 222         b_keptVisible = NO;
 223         b_fadeQueued = NO;
 224         [self setFadeTimer: NULL];
 225         [self fadeIn];
 226         return;
 227     }
 228     if( [self alphaValue] > 0.0 )
 229         [self setAlphaValue:[self alphaValue]-0.05];
 230     if( [self alphaValue] <= 0.05 )
 231     {
 232         b_displayed = NO;
 233         [self setAlphaValue:0.0];
 234         [self setFadeTimer:nil];
 235         if( b_fadeQueued )
 236         {
 237             b_fadeQueued=NO;
 238             [self setFadeTimer:
 239                 [NSTimer scheduledTimerWithTimeInterval:0.1
 240                                                  target:self
 241                                                selector:@selector(focus:)
 242                                                userInfo:NULL
 243                                                 repeats:YES]];
 244         }
 245     }
 246 }
 247
 248 - (void)mouseExited:(NSEvent *)theEvent
 249 {
 250     /* give up our focus, so the vout may show us again without letting the user clicking it */
 251     if( [[[VLCCoreInteraction sharedInstance] voutView] isFullscreen] )
 252         [[[[VLCCoreInteraction sharedInstance] voutView] window] makeKeyWindow];
 253 }
 254
 255 - (void)hideMouse
 256 {
 257     [NSCursor setHiddenUntilMouseMoves: YES];
 258 }
 259
 260 - (void)fadeIn
 261 {
 262     /* in case that the user don't want us to appear, make sure we hide the mouse */
 263
 264     if( !config_GetInt( VLCIntf, "macosx-fspanel" ) )
 265     {
 266         float time = (float)var_CreateGetInteger( VLCIntf, "mouse-hide-timeout" ) / 1000.;
 267         [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:time target:self selector:@selector(hideMouse) userInfo:nil repeats:NO]];
 268         return;
 269     }
 270
 271     if( b_nonActive )
 272         return;
 273
 274     [self orderFront: nil];
 275
 276     if( [self alphaValue] < 1.0 || b_displayed != YES )
 277     {
 278         if (![self fadeTimer])
 279             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(focus:) userInfo:[NSNumber numberWithShort:1] repeats:YES]];
 280         else if ([[[self fadeTimer] userInfo] shortValue]==0)
 281             b_fadeQueued=YES;
 282     }
 283     [self autoHide];
 284 }
 285
 286 - (void)fadeOut
 287 {
 288     if( NSPointInRect([NSEvent mouseLocation],[self frame]))
 289         return;
 290
 291     if( ( [self alphaValue] > 0.0 ) )
 292     {
 293         if (![self fadeTimer])
 294             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(unfocus:) userInfo:[NSNumber numberWithShort:0] repeats:YES]];
 295         else if ([[[self fadeTimer] userInfo] shortValue]==1)
 296             b_fadeQueued=YES;
 297     }
 298 }
 299
 300 /* triggers a timer to autoHide us again after some seconds of no activity */
 301 - (void)autoHide
 302 {
 303     /* this will tell the timer to start over again or to start at all */
 304     b_keptVisible = YES;
 305
 306     /* get us a valid timer */
 307     if(! b_alreadyCounting )
 308     {
 309         i_timeToKeepVisibleInSec = var_CreateGetInteger( VLCIntf, "mouse-hide-timeout" ) / 500;
 310         if( hideAgainTimer )
 311         {
 312             [hideAgainTimer invalidate];
 313             [hideAgainTimer autorelease];
 314         }
 315         /* released in -autoHide and -dealloc */
 316         hideAgainTimer = [[NSTimer scheduledTimerWithTimeInterval: 0.5
 317                                                           target: self
 318                                                         selector: @selector(keepVisible:)
 319                                                         userInfo: nil
 320                                                          repeats: YES] retain];
 321         b_alreadyCounting = YES;
 322     }
 323 }
 324
 325 - (void)keepVisible:(NSTimer *)timer
 326 {
 327     /* if the user triggered an action, start over again */
 328     if( b_keptVisible )
 329         b_keptVisible = NO;
 330
 331     /* count down until we hide ourselfes again and do so if necessary */
 332     if( --i_timeToKeepVisibleInSec < 1 )
 333     {
 334         [self hideMouse];
 335         [self fadeOut];
 336         [hideAgainTimer invalidate]; /* released in -autoHide and -dealloc */
 337         b_alreadyCounting = NO;
 338     }
 339 }
 340
 341 /* A getter and setter for our main timer that handles window fading */
 342 - (NSTimer *)fadeTimer
 343 {
 344     return fadeTimer;
 345 }
 346
 347 - (void)setFadeTimer:(NSTimer *)timer
 348 {
 349     [timer retain];
 350     [fadeTimer invalidate];
 351     [fadeTimer autorelease];
 352     fadeTimer=timer;
 353 }
 354
 355 - (void)mouseDown:(NSEvent *)theEvent
 356 {
 357     mouseClic = [theEvent locationInWindow];
 358 }
 359
 360 - (void)mouseDragged:(NSEvent *)theEvent
 361 {
 362     NSPoint point = [NSEvent mouseLocation];
 363     point.x -= mouseClic.x;
 364     point.y -= mouseClic.y;
 365     [self setFrameOrigin:point];
 366 }
 367
 368 - (BOOL)isDisplayed
 369 {
 370     return b_displayed;
 371 }
 372
 373 - (void)setVoutWasUpdated: (int)i_newdevice;
 374 {
 375     b_voutWasUpdated = YES;
 376     if( i_newdevice != i_device )
 377     {
 378         i_device = i_newdevice;
 379         [self center];
 380     }
 381 }
 382 @end
 383
 384 /*****************************************************************************
 385  * FSPanelView
 386  *****************************************************************************/
 387 @implementation VLCFSPanelView
 388
 389 #define addButton( o_button, imageOff, imageOn, _x, _y, action )                                \
 390     s_rc.origin.x = _x;                                                                         \
 391     s_rc.origin.y = _y;                                                                         \
 392     o_button = [[NSButton alloc] initWithFrame: s_rc];                                 \
 393     [o_button setButtonType: NSMomentaryChangeButton];                                          \
 394     [o_button setBezelStyle: NSRegularSquareBezelStyle];                                        \
 395     [o_button setBordered: NO];                                                                 \
 396     [o_button setFont:[NSFont systemFontOfSize:0]];                                             \
 397     [o_button setImage:[NSImage imageNamed:imageOff]];                                 \
 398     [o_button setAlternateImage:[NSImage imageNamed:imageOn]];                         \
 399     [o_button sizeToFit];                                                                       \
 400     [o_button setTarget: self];                                                                 \
 401     [o_button setAction: @selector(action:)];                                                   \
 402     [self addSubview:o_button];
 403
 404 #define addTextfield( class, o_text, align, font, color, size )                                    \
 405     o_text = [[class alloc] initWithFrame: s_rc];                            \
 406     [o_text setDrawsBackground: NO];                                                        \
 407     [o_text setBordered: NO];                                                               \
 408     [o_text setEditable: NO];                                                               \
 409     [o_text setSelectable: NO];                                                             \
 410     [o_text setStringValue: _NS("(no item is being played)")];                                                    \
 411     [o_text setAlignment: align];                                                           \
 412     [o_text setTextColor: [NSColor color]];                                                 \
 413     [o_text setFont:[NSFont font:[NSFont smallSystemFontSize] - size]];                     \
 414     [self addSubview:o_text];
 415
 416 - (id)initWithFrame:(NSRect)frameRect
 417 {
 418     id view = [super initWithFrame:frameRect];
 419     fillColor = [[NSColor clearColor] retain];
 420     NSRect s_rc = [self frame];
 421     addButton( o_prev, @"fs_skip_previous" , @"fs_skip_previous_highlight", 174, 15, prev );
 422     addButton( o_bwd, @"fs_rewind"        , @"fs_rewind_highlight"       , 211, 14, backward );
 423     addButton( o_play, @"fs_play"          , @"fs_play_highlight"         , 267, 10, play );
 424     addButton( o_fwd, @"fs_forward"       , @"fs_forward_highlight"      , 313, 14, forward );
 425     addButton( o_next, @"fs_skip_next"     , @"fs_skip_next_highlight"    , 365, 15, next );
 426     addButton( o_fullscreen, @"fs_exit_fullscreen", @"fs_exit_fullscreen_hightlight", 507, 13, windowAction );
 427 /*
 428     addButton( o_button, @"image (off state)", @"image (on state)", 38, 51, something );
 429  */
 430
 431     /* time slider */
 432     s_rc = [self frame];
 433     s_rc.origin.x = 15;
 434     s_rc.origin.y = 53;
 435     s_rc.size.width = 518;
 436     s_rc.size.height = 9;
 437     o_fs_timeSlider = [[VLCFSTimeSlider alloc] initWithFrame: s_rc];
 438     [o_fs_timeSlider setMinValue:0];
 439     [o_fs_timeSlider setMaxValue:10000];
 440     [o_fs_timeSlider setFloatValue: 0];
 441     [o_fs_timeSlider setContinuous: YES];
 442     [o_fs_timeSlider setTarget: self];
 443     [o_fs_timeSlider setAction: @selector(fsTimeSliderUpdate:)];
 444     [self addSubview: o_fs_timeSlider];
 445
 446     /* volume slider */
 447     s_rc = [self frame];
 448     s_rc.origin.x = 26;
 449     s_rc.origin.y = 17.5;
 450     s_rc.size.width = 95;
 451     s_rc.size.height = 10;
 452     o_fs_volumeSlider = [[VLCFSVolumeSlider alloc] initWithFrame: s_rc];
 453     [o_fs_volumeSlider setMinValue:0];
 454     [o_fs_volumeSlider setMaxValue:32];
 455     [o_fs_volumeSlider setFloatValue: 0];
 456     [o_fs_volumeSlider setContinuous: YES];
 457     [o_fs_volumeSlider setTarget: self];
 458     [o_fs_volumeSlider setAction: @selector(fsVolumeSliderUpdate:)];
 459     [self addSubview: o_fs_volumeSlider];
 460
 461     /* time counter and stream title output fields */
 462     s_rc = [self frame];
 463     s_rc.origin.x = 98;
 464     s_rc.origin.y = 64;
 465     s_rc.size.width = 352;
 466     s_rc.size.height = 14;
 467     addTextfield( NSTextField, o_streamTitle_txt, NSCenterTextAlignment, systemFontOfSize, whiteColor, 0 );
 468     s_rc.origin.x = 481;
 469     s_rc.origin.y = 64;
 470     s_rc.size.width = 55;
 471     addTextfield( VLCTimeField, o_streamPosition_txt, NSRightTextAlignment, systemFontOfSize, whiteColor, 0 );
 472
 473     return view;
 474 }
 475
 476 - (void)dealloc
 477 {
 478     [o_fs_timeSlider release];
 479     [o_fs_volumeSlider release];
 480     [o_prev release];
 481     [o_next release];
 482     [o_bwd release];
 483     [o_play release];
 484     [o_fwd release];
 485     [o_fullscreen release];
 486     [o_streamTitle_txt release];
 487     [o_streamPosition_txt release];
 488     [super dealloc];
 489 }
 490
 491 - (void)setPlay
 492 {
 493     [o_play setImage:[NSImage imageNamed:@"fs_play"]];
 494     [o_play setAlternateImage: [NSImage imageNamed:@"fs_play_highlight"]];
 495 }
 496
 497 - (void)setPause
 498 {
 499     [o_play setImage: [NSImage imageNamed:@"fs_pause"]];
 500     [o_play setAlternateImage: [NSImage imageNamed:@"fs_pause_highlight"]];
 501 }
 502
 503 - (void)setStreamTitle:(NSString *)o_title
 504 {
 505     [o_streamTitle_txt setStringValue: o_title];
 506 }
 507
 508 - (void)setStreamPos:(float) f_pos andTime:(NSString *)o_time
 509 {
 510     [o_streamPosition_txt setStringValue: o_time];
 511     [o_fs_timeSlider setFloatValue: f_pos];
 512 }
 513
 514 - (void)setSeekable:(BOOL)b_seekable
 515 {
 516     [o_bwd setEnabled: b_seekable];
 517     [o_fwd setEnabled: b_seekable];
 518     [o_fs_timeSlider setEnabled: b_seekable];
 519 }
 520
 521 - (void)setVolumeLevel: (float)f_volumeLevel
 522 {
 523     [o_fs_volumeSlider setFloatValue: f_volumeLevel];
 524 }
 525
 526 - (IBAction)play:(id)sender
 527 {
 528     [[[VLCMain sharedInstance] controls] play: sender];
 529 }
 530
 531 - (IBAction)forward:(id)sender
 532 {
 533     [[[VLCMain sharedInstance] controls] forward: sender];
 534 }
 535
 536 - (IBAction)backward:(id)sender
 537 {
 538     [[[VLCMain sharedInstance] controls] backward: sender];
 539 }
 540
 541 - (IBAction)prev:(id)sender
 542 {
 543     [[[VLCMain sharedInstance] controls] prev: sender];
 544 }
 545
 546 - (IBAction)next:(id)sender
 547 {
 548     [[[VLCMain sharedInstance] controls] next: sender];
 549 }
 550
 551 - (IBAction)windowAction:(id)sender
 552 {
 553     [[[VLCMain sharedInstance] controls] windowAction: sender];
 554 }
 555
 556 - (IBAction)fsTimeSliderUpdate:(id)sender
 557 {
 558     [[VLCMainWindow sharedInstance] updateTimeSlider];
 559 }
 560
 561 - (IBAction)fsVolumeSliderUpdate:(id)sender
 562 {
 563     [[VLCCoreInteraction sharedInstance] setVolume: [sender intValue]];
 564 }
 565
 566 #define addImage(image, _x, _y, mode, _width)                                               \
 567     img = [NSImage imageNamed:image];                                              \
 568     image_rect.size = [img size];                                                           \
 569     image_rect.origin.x = 0;                                                                \
 570     image_rect.origin.y = 0;                                                                \
 571     frame.origin.x = _x;                                                                    \
 572     frame.origin.y = _y;                                                                    \
 573     frame.size = [img size];                                                                \
 574     if( _width ) frame.size.width = _width;                                                 \
 575     [img drawInRect:frame fromRect:image_rect operation:mode fraction:1];
 576
 577 - (void)drawRect:(NSRect)rect
 578 {
 579     NSRect frame = [self frame];
 580     NSRect image_rect;
 581     NSImage *img;
 582     addImage( @"fs_background", 0, 0, NSCompositeCopy, 0 );
 583     addImage( @"fs_volume_slider_bar", 26, 22, NSCompositeSourceOver, 0 );
 584     addImage( @"fs_volume_mute", 16, 18, NSCompositeSourceOver, 0 );
 585     addImage( @"fs_volume_max", 124, 17, NSCompositeSourceOver, 0 );
 586     addImage( @"fs_time_slider", 15, 53, NSCompositeSourceOver, 0);
 587 }
 588
 589 @end
 590
 591 /*****************************************************************************
 592  * VLCFSTimeSlider
 593  *****************************************************************************/
 594 @implementation VLCFSTimeSlider
 595 - (void)drawKnobInRect:(NSRect)knobRect
 596 {
 597     NSRect image_rect;
 598     NSImage *img = [NSImage imageNamed:@"fs_time_slider_knob_highlight"];
 599     image_rect.size = [img size];
 600     image_rect.origin.x = 0;
 601     image_rect.origin.y = 0;
 602     knobRect.origin.x += (knobRect.size.width - image_rect.size.width) / 2;
 603     knobRect.size.width = image_rect.size.width;
 604     knobRect.size.height = image_rect.size.height;
 605     [img drawInRect:knobRect fromRect:image_rect operation:NSCompositeSourceOver fraction:1];
 606 }
 607
 608 - (void)drawRect:(NSRect)rect
 609 {
 610     /* Draw default to make sure the slider behaves correctly */
 611     [[NSGraphicsContext currentContext] saveGraphicsState];
 612     NSRectClip(NSZeroRect);
 613     [super drawRect:rect];
 614     [[NSGraphicsContext currentContext] restoreGraphicsState];
 615
 616     NSRect knobRect = [[self cell] knobRectFlipped:NO];
 617     knobRect.origin.y+=7.5;
 618     [[[NSColor blackColor] colorWithAlphaComponent:0.6] set];
 619     [self drawKnobInRect: knobRect];
 620 }
 621
 622 @end
 623
 624 /*****************************************************************************
 625 * VLCFSVolumeSlider
 626 *****************************************************************************/
 627 @implementation VLCFSVolumeSlider
 628 - (void)drawKnobInRect:(NSRect) knobRect
 629 {
 630     NSRect image_rect;
 631     NSImage *img = [NSImage imageNamed:@"fs_volume_slider_knob"];
 632     image_rect.size = [img size];
 633     image_rect.origin.x = 0;
 634     image_rect.origin.y = 0;
 635     knobRect.origin.x += (knobRect.size.width - image_rect.size.width) / 2;
 636     knobRect.size.width = image_rect.size.width;
 637     knobRect.size.height = image_rect.size.height;
 638     [img drawInRect:knobRect fromRect:image_rect operation:NSCompositeSourceOver fraction:1];
 639 }
 640
 641 - (void)drawRect:(NSRect)rect
 642 {
 643     /* Draw default to make sure the slider behaves correctly */
 644     [[NSGraphicsContext currentContext] saveGraphicsState];
 645     NSRectClip(NSZeroRect);
 646     [super drawRect:rect];
 647     [[NSGraphicsContext currentContext] restoreGraphicsState];
 648
 649     NSRect knobRect = [[self cell] knobRectFlipped:NO];
 650     knobRect.origin.y+=6;
 651     [[[NSColor blackColor] colorWithAlphaComponent:0.6] set];
 652     [self drawKnobInRect: knobRect];
 653 }
 654
 655 @end
 656