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 "MainWindow.h"
  31 #import "misc.h"
  32 #import "fspanel.h"
  33
  34 @interface VLCFSPanel ()
  35 - (void)hideMouse;
  36 @end
  37
  38 /*****************************************************************************
  39  * VLCFSPanel
  40  *****************************************************************************/
  41 @implementation VLCFSPanel
  42 /* We override this initializer so we can set the NSBorderlessWindowMask styleMask, and set a few other important settings */
  43 - (id)initWithContentRect:(NSRect)contentRect
  44                 styleMask:(NSUInteger)aStyle
  45                   backing:(NSBackingStoreType)bufferingType
  46                     defer:(BOOL)flag
  47 {
  48     id win = [super initWithContentRect:contentRect styleMask:NSTexturedBackgroundWindowMask backing:bufferingType defer:flag];
  49     [win setOpaque:NO];
  50     [win setHasShadow: NO];
  51     [win setBackgroundColor:[NSColor clearColor]];
  52
  53     /* let the window sit on top of everything else and start out completely transparent */
  54     [win setLevel:NSModalPanelWindowLevel];
  55     i_device = 0;
  56     [win center];
  57     hideAgainTimer = fadeTimer = nil;
  58     [self setNonActive:nil];
  59     return win;
  60 }
  61
  62 - (void)awakeFromNib
  63 {
  64     [self setContentView:[[VLCFSPanelView alloc] initWithFrame: [self frame]]];
  65     BOOL isInside = (NSPointInRect([NSEvent mouseLocation],[self frame]));
  66     [[self contentView] addTrackingRect:[[self contentView] bounds] owner:self userData:nil assumeInside:isInside];
  67     if (isInside)
  68         [self mouseEntered:NULL];
  69     if (!isInside)
  70         [self mouseExited:NULL];
  71
  72     /* get a notification if VLC isn't the active app anymore */
  73     [[NSNotificationCenter defaultCenter]
  74     addObserver: self
  75        selector: @selector(setNonActive:)
  76            name: NSApplicationDidResignActiveNotification
  77          object: NSApp];
  78
  79     /* get a notification if VLC is the active app again */
  80     [[NSNotificationCenter defaultCenter]
  81     addObserver: self
  82        selector: @selector(setActive:)
  83            name: NSApplicationDidBecomeActiveNotification
  84          object: NSApp];
  85 }
  86
  87 /* make sure that we don't become key, since we can't handle hotkeys */
  88 - (BOOL)canBecomeKeyWindow
  89 {
  90     return NO;
  91 }
  92
  93 - (BOOL)mouseDownCanMoveWindow
  94 {
  95     return YES;
  96 }
  97
  98 -(void)dealloc
  99 {
 100     [[NSNotificationCenter defaultCenter] removeObserver: self];
 101
 102     if( hideAgainTimer )
 103     {
 104         [hideAgainTimer invalidate];
 105         [hideAgainTimer release];
 106     }
 107     [self setFadeTimer:nil];
 108     [super dealloc];
 109 }
 110
 111 -(void)center
 112 {
 113     /* centre the panel in the lower third of the screen */
 114     NSPoint theCoordinate;
 115     NSRect theScreensFrame;
 116     NSRect theWindowsFrame;
 117     NSScreen *screen;
 118
 119     /* user-defined screen */
 120     screen = [NSScreen screenWithDisplayID: (CGDirectDisplayID)i_device];
 121
 122     if (!screen)
 123     {
 124         /* invalid preferences or none specified, using main screen */
 125         screen = [NSScreen mainScreen];
 126     }
 127
 128     theScreensFrame = [screen frame];
 129
 130     theWindowsFrame = [self frame];
 131
 132     theCoordinate.x = (theScreensFrame.size.width - theWindowsFrame.size.width) / 2 + theScreensFrame.origin.x;
 133     theCoordinate.y = (theScreensFrame.size.height / 3) - theWindowsFrame.size.height + theScreensFrame.origin.y;
 134     [self setFrameTopLeftPoint: theCoordinate];
 135 }
 136
 137 - (void)setPlay
 138 {
 139     [[self contentView] setPlay];
 140 }
 141
 142 - (void)setPause
 143 {
 144     [[self contentView] setPause];
 145 }
 146
 147 - (void)setStreamTitle:(NSString *)o_title
 148 {
 149     [[self contentView] setStreamTitle: o_title];
 150 }
 151
 152 - (void)setStreamPos:(float) f_pos andTime:(NSString *)o_time
 153 {
 154     [[self contentView] setStreamPos:f_pos andTime: o_time];
 155 }
 156
 157 - (void)setSeekable:(BOOL) b_seekable
 158 {
 159     [[self contentView] setSeekable: b_seekable];
 160 }
 161
 162 - (void)setVolumeLevel: (float)f_volumeLevel
 163 {
 164     [[self contentView] setVolumeLevel: f_volumeLevel];
 165 }
 166
 167 - (void)setNonActive:(id)noData
 168 {
 169     b_nonActive = YES;
 170     [self orderOut: self];
 171
 172     /* here's fadeOut, just without visibly fading */
 173     b_displayed = NO;
 174     [self setAlphaValue:0.0];
 175     [self setFadeTimer:nil];
 176     b_fadeQueued = NO;
 177 }
 178
 179 - (void)setActive:(id)noData
 180 {
 181     b_nonActive = NO;
 182     [[VLCMain sharedInstance] showFullscreenController];
 183 }
 184
 185 /* This routine is called repeatedly to fade in the window */
 186 - (void)focus:(NSTimer *)timer
 187 {
 188     /* we need to push ourselves to front if the vout window was closed since our last display */
 189     if( b_voutWasUpdated )
 190     {
 191         [self orderFront: self];
 192         b_voutWasUpdated = NO;
 193     }
 194
 195     if( [self alphaValue] < 1.0 )
 196         [self setAlphaValue:[self alphaValue]+0.1];
 197     if( [self alphaValue] >= 1.0 )
 198     {
 199         b_displayed = YES;
 200         [self setAlphaValue: 1.0];
 201         [self setFadeTimer:nil];
 202         if( b_fadeQueued )
 203         {
 204             b_fadeQueued=NO;
 205             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(unfocus:) userInfo:NULL repeats:YES]];
 206         }
 207     }
 208 }
 209
 210 /* This routine is called repeatedly to hide the window */
 211 - (void)unfocus:(NSTimer *)timer
 212 {
 213     if( b_keptVisible )
 214     {
 215         b_keptVisible = NO;
 216         b_fadeQueued = NO;
 217         [self setFadeTimer: NULL];
 218         [self fadeIn];
 219         return;
 220     }
 221     if( [self alphaValue] > 0.0 )
 222         [self setAlphaValue:[self alphaValue]-0.05];
 223     if( [self alphaValue] <= 0.05 )
 224     {
 225         b_displayed = NO;
 226         [self setAlphaValue:0.0];
 227         [self setFadeTimer:nil];
 228         if( b_fadeQueued )
 229         {
 230             b_fadeQueued=NO;
 231             [self setFadeTimer:
 232                 [NSTimer scheduledTimerWithTimeInterval:0.1
 233                                                  target:self
 234                                                selector:@selector(focus:)
 235                                                userInfo:NULL
 236                                                 repeats:YES]];
 237         }
 238     }
 239 }
 240
 241 - (void)mouseExited:(NSEvent *)theEvent
 242 {
 243     /* give up our focus, so the vout may show us again without letting the user clicking it */
 244     vout_thread_t *p_vout = getVout();
 245     if (p_vout)
 246     {
 247         if (var_GetBool( p_vout, "fullscreen" ))
 248             [[[[VLCMainWindow sharedInstance] videoView] window] makeKeyWindow];
 249         vlc_object_release( p_vout );
 250     }
 251 }
 252
 253 - (void)hideMouse
 254 {
 255     [NSCursor setHiddenUntilMouseMoves: YES];
 256 }
 257
 258 - (void)fadeIn
 259 {
 260     /* in case that the user don't want us to appear, make sure we hide the mouse */
 261
 262     if( !config_GetInt( VLCIntf, "macosx-fspanel" ) )
 263     {
 264         float time = (float)var_CreateGetInteger( VLCIntf, "mouse-hide-timeout" ) / 1000.;
 265         [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:time target:self selector:@selector(hideMouse) userInfo:nil repeats:NO]];
 266         return;
 267     }
 268
 269     if( b_nonActive )
 270         return;
 271
 272     [self orderFront: nil];
 273
 274     if( [self alphaValue] < 1.0 || b_displayed != YES )
 275     {
 276         if (![self fadeTimer])
 277             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(focus:) userInfo:[NSNumber numberWithShort:1] repeats:YES]];
 278         else if ([[[self fadeTimer] userInfo] shortValue]==0)
 279             b_fadeQueued=YES;
 280     }
 281     [self autoHide];
 282 }
 283
 284 - (void)fadeOut
 285 {
 286     if( NSPointInRect([NSEvent mouseLocation],[self frame]))
 287         return;
 288
 289     if( ( [self alphaValue] > 0.0 ) )
 290     {
 291         if (![self fadeTimer])
 292             [self setFadeTimer:[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(unfocus:) userInfo:[NSNumber numberWithShort:0] repeats:YES]];
 293         else if ([[[self fadeTimer] userInfo] shortValue]==1)
 294             b_fadeQueued=YES;
 295     }
 296 }
 297
 298 /* triggers a timer to autoHide us again after some seconds of no activity */
 299 - (void)autoHide
 300 {
 301     /* this will tell the timer to start over again or to start at all */
 302     b_keptVisible = YES;
 303
 304     /* get us a valid timer */
 305     if(! b_alreadyCounting )
 306     {
 307         i_timeToKeepVisibleInSec = var_CreateGetInteger( VLCIntf, "mouse-hide-timeout" ) / 500;
 308         if( hideAgainTimer )
 309         {
 310             [hideAgainTimer invalidate];
 311             [hideAgainTimer autorelease];
 312         }
 313         /* released in -autoHide and -dealloc */
 314         hideAgainTimer = [[NSTimer scheduledTimerWithTimeInterval: 0.5
 315                                                           target: self
 316                                                         selector: @selector(keepVisible:)
 317                                                         userInfo: nil
 318                                                          repeats: YES] retain];
 319         b_alreadyCounting = YES;
 320     }
 321 }
 322
 323 - (void)keepVisible:(NSTimer *)timer
 324 {
 325     /* if the user triggered an action, start over again */
 326     if( b_keptVisible )
 327         b_keptVisible = NO;
 328
 329     /* count down until we hide ourselfes again and do so if necessary */
 330     if( --i_timeToKeepVisibleInSec < 1 )
 331     {
 332         [self hideMouse];
 333         [self fadeOut];
 334         [hideAgainTimer invalidate]; /* released in -autoHide and -dealloc */
 335         b_alreadyCounting = NO;
 336     }
 337 }
 338
 339 /* A getter and setter for our main timer that handles window fading */
 340 - (NSTimer *)fadeTimer
 341 {
 342     return fadeTimer;
 343 }
 344
 345 - (void)setFadeTimer:(NSTimer *)timer
 346 {
 347     [timer retain];
 348     [fadeTimer invalidate];
 349     [fadeTimer autorelease];
 350     fadeTimer=timer;
 351 }
 352
 353 - (void)mouseDown:(NSEvent *)theEvent
 354 {
 355     mouseClic = [theEvent locationInWindow];
 356 }
 357
 358 - (void)mouseDragged:(NSEvent *)theEvent
 359 {
 360     NSPoint point = [NSEvent mouseLocation];
 361     point.x -= mouseClic.x;
 362     point.y -= mouseClic.y;
 363     [self setFrameOrigin:point];
 364 }
 365
 366 - (BOOL)isDisplayed
 367 {
 368     return b_displayed;
 369 }
 370
 371 - (void)setVoutWasUpdated: (int)i_newdevice;
 372 {
 373     b_voutWasUpdated = YES;
 374     if( i_newdevice != i_device )
 375     {
 376         i_device = i_newdevice;
 377         [self center];
 378     }
 379 }
 380 @end
 381
 382 /*****************************************************************************
 383  * FSPanelView
 384  *****************************************************************************/
 385 @implementation VLCFSPanelView
 386
 387 #define addButton( o_button, imageOff, imageOn, _x, _y, action )                                \
 388     s_rc.origin.x = _x;                                                                         \
 389     s_rc.origin.y = _y;                                                                         \
 390     o_button = [[NSButton alloc] initWithFrame: s_rc];                                 \
 391     [o_button setButtonType: NSMomentaryChangeButton];                                          \
 392     [o_button setBezelStyle: NSRegularSquareBezelStyle];                                        \
 393     [o_button setBordered: NO];                                                                 \
 394     [o_button setFont:[NSFont systemFontOfSize:0]];                                             \
 395     [o_button setImage:[NSImage imageNamed:imageOff]];                                 \
 396     [o_button setAlternateImage:[NSImage imageNamed:imageOn]];                         \
 397     [o_button sizeToFit];                                                                       \
 398     [o_button setTarget: self];                                                                 \
 399     [o_button setAction: @selector(action:)];                                                   \
 400     [self addSubview:o_button];
 401
 402 #define addTextfield( class, o_text, align, font, color, size )                                    \
 403     o_text = [[class alloc] initWithFrame: s_rc];                            \
 404     [o_text setDrawsBackground: NO];                                                        \
 405     [o_text setBordered: NO];                                                               \
 406     [o_text setEditable: NO];                                                               \
 407     [o_text setSelectable: NO];                                                             \
 408     [o_text setStringValue: _NS("(no item is being played)")];                                                    \
 409     [o_text setAlignment: align];                                                           \
 410     [o_text setTextColor: [NSColor color]];                                                 \
 411     [o_text setFont:[NSFont font:[NSFont smallSystemFontSize] - size]];                     \
 412     [self addSubview:o_text];
 413
 414 - (id)initWithFrame:(NSRect)frameRect
 415 {
 416     id view = [super initWithFrame:frameRect];
 417     fillColor = [[NSColor clearColor] retain];
 418     NSRect s_rc = [self frame];
 419     addButton( o_prev, @"fs_skip_previous" , @"fs_skip_previous_highlight", 174, 15, prev );
 420     addButton( o_bwd, @"fs_rewind"        , @"fs_rewind_highlight"       , 211, 14, backward );
 421     addButton( o_play, @"fs_play"          , @"fs_play_highlight"         , 267, 10, play );
 422     addButton( o_fwd, @"fs_forward"       , @"fs_forward_highlight"      , 313, 14, forward );
 423     addButton( o_next, @"fs_skip_next"     , @"fs_skip_next_highlight"    , 365, 15, next );
 424     addButton( o_fullscreen, @"fs_exit_fullscreen", @"fs_exit_fullscreen_hightlight", 507, 13, toggleFullscreen );
 425 /*
 426     addButton( o_button, @"image (off state)", @"image (on state)", 38, 51, something );
 427  */
 428
 429     /* time slider */
 430     s_rc = [self frame];
 431     s_rc.origin.x = 15;
 432     s_rc.origin.y = 53;
 433     s_rc.size.width = 518;
 434     s_rc.size.height = 9;
 435     o_fs_timeSlider = [[VLCFSTimeSlider alloc] initWithFrame: s_rc];
 436     [o_fs_timeSlider setMinValue:0];
 437     [o_fs_timeSlider setMaxValue:10000];
 438     [o_fs_timeSlider setFloatValue: 0];
 439     [o_fs_timeSlider setContinuous: YES];
 440     [o_fs_timeSlider setTarget: self];
 441     [o_fs_timeSlider setAction: @selector(fsTimeSliderUpdate:)];
 442     [self addSubview: o_fs_timeSlider];
 443
 444     /* volume slider */
 445     s_rc = [self frame];
 446     s_rc.origin.x = 26;
 447     s_rc.origin.y = 17.5;
 448     s_rc.size.width = 95;
 449     s_rc.size.height = 10;
 450     o_fs_volumeSlider = [[VLCFSVolumeSlider alloc] initWithFrame: s_rc];
 451     [o_fs_volumeSlider setMinValue:0];
 452     [o_fs_volumeSlider setMaxValue:32];
 453     [o_fs_volumeSlider setFloatValue: 0];
 454     [o_fs_volumeSlider setContinuous: YES];
 455     [o_fs_volumeSlider setTarget: self];
 456     [o_fs_volumeSlider setAction: @selector(fsVolumeSliderUpdate:)];
 457     [self addSubview: o_fs_volumeSlider];
 458
 459     /* time counter and stream title output fields */
 460     s_rc = [self frame];
 461     s_rc.origin.x = 98;
 462     s_rc.origin.y = 64;
 463     s_rc.size.width = 352;
 464     s_rc.size.height = 14;
 465     addTextfield( NSTextField, o_streamTitle_txt, NSCenterTextAlignment, systemFontOfSize, whiteColor, 0 );
 466     s_rc.origin.x = 481;
 467     s_rc.origin.y = 64;
 468     s_rc.size.width = 55;
 469     addTextfield( VLCTimeField, o_streamPosition_txt, NSRightTextAlignment, systemFontOfSize, whiteColor, 0 );
 470
 471     return view;
 472 }
 473
 474 - (void)dealloc
 475 {
 476     [o_fs_timeSlider release];
 477     [o_fs_volumeSlider release];
 478     [o_prev release];
 479     [o_next release];
 480     [o_bwd release];
 481     [o_play release];
 482     [o_fwd release];
 483     [o_fullscreen release];
 484     [o_streamTitle_txt release];
 485     [o_streamPosition_txt release];
 486     [super dealloc];
 487 }
 488
 489 - (void)setPlay
 490 {
 491     [o_play setImage:[NSImage imageNamed:@"fs_play"]];
 492     [o_play setAlternateImage: [NSImage imageNamed:@"fs_play_highlight"]];
 493 }
 494
 495 - (void)setPause
 496 {
 497     [o_play setImage: [NSImage imageNamed:@"fs_pause"]];
 498     [o_play setAlternateImage: [NSImage imageNamed:@"fs_pause_highlight"]];
 499 }
 500
 501 - (void)setStreamTitle:(NSString *)o_title
 502 {
 503     [o_streamTitle_txt setStringValue: o_title];
 504 }
 505
 506 - (void)setStreamPos:(float) f_pos andTime:(NSString *)o_time
 507 {
 508     [o_streamPosition_txt setStringValue: o_time];
 509     [o_fs_timeSlider setFloatValue: f_pos];
 510 }
 511
 512 - (void)setSeekable:(BOOL)b_seekable
 513 {
 514     [o_bwd setEnabled: b_seekable];
 515     [o_fwd setEnabled: b_seekable];
 516     [o_fs_timeSlider setEnabled: b_seekable];
 517 }
 518
 519 - (void)setVolumeLevel: (float)f_volumeLevel
 520 {
 521     [o_fs_volumeSlider setFloatValue: f_volumeLevel];
 522 }
 523
 524 - (IBAction)play:(id)sender
 525 {
 526     [[VLCCoreInteraction sharedInstance] play];
 527 }
 528
 529 - (IBAction)forward:(id)sender
 530 {
 531     [[VLCCoreInteraction sharedInstance] forward];
 532 }
 533
 534 - (IBAction)backward:(id)sender
 535 {
 536     [[VLCCoreInteraction sharedInstance] backward];
 537 }
 538
 539 - (IBAction)prev:(id)sender
 540 {
 541     [[VLCCoreInteraction sharedInstance] previous];
 542 }
 543
 544 - (IBAction)next:(id)sender
 545 {
 546     [[VLCCoreInteraction sharedInstance] next];
 547 }
 548
 549 - (IBAction)toggleFullscreen:(id)sender
 550 {
 551     [[VLCCoreInteraction sharedInstance] toggleFullscreen];
 552 }
 553
 554 - (IBAction)fsTimeSliderUpdate:(id)sender
 555 {
 556     input_thread_t * p_input;
 557     p_input = pl_CurrentInput( VLCIntf );
 558     if( p_input != NULL )
 559     {
 560         vlc_value_t pos;
 561
 562         pos.f_float = [o_fs_timeSlider floatValue] / 10000.;
 563         var_Set( p_input, "position", pos );
 564         vlc_object_release( p_input );
 565     }
 566     [[VLCMain sharedInstance] updatePlaybackPosition];
 567 }
 568
 569 - (IBAction)fsVolumeSliderUpdate:(id)sender
 570 {
 571     [[VLCCoreInteraction sharedInstance] setVolume: [sender intValue]];
 572 }
 573
 574 #define addImage(image, _x, _y, mode, _width)                                               \
 575     img = [NSImage imageNamed:image];                                              \
 576     image_rect.size = [img size];                                                           \
 577     image_rect.origin.x = 0;                                                                \
 578     image_rect.origin.y = 0;                                                                \
 579     frame.origin.x = _x;                                                                    \
 580     frame.origin.y = _y;                                                                    \
 581     frame.size = [img size];                                                                \
 582     if( _width ) frame.size.width = _width;                                                 \
 583     [img drawInRect:frame fromRect:image_rect operation:mode fraction:1];
 584
 585 - (void)drawRect:(NSRect)rect
 586 {
 587     NSRect frame = [self frame];
 588     NSRect image_rect;
 589     NSImage *img;
 590     addImage( @"fs_background", 0, 0, NSCompositeCopy, 0 );
 591     addImage( @"fs_volume_slider_bar", 26, 22, NSCompositeSourceOver, 0 );
 592     addImage( @"fs_volume_mute", 16, 18, NSCompositeSourceOver, 0 );
 593     addImage( @"fs_volume_max", 124, 17, NSCompositeSourceOver, 0 );
 594     addImage( @"fs_time_slider", 15, 53, NSCompositeSourceOver, 0);
 595 }
 596
 597 @end
 598
 599 /*****************************************************************************
 600  * VLCFSTimeSlider
 601  *****************************************************************************/
 602 @implementation VLCFSTimeSlider
 603 - (void)drawKnobInRect:(NSRect)knobRect
 604 {
 605     NSRect image_rect;
 606     NSImage *img = [NSImage imageNamed:@"fs_time_slider_knob_highlight"];
 607     image_rect.size = [img size];
 608     image_rect.origin.x = 0;
 609     image_rect.origin.y = 0;
 610     knobRect.origin.x += (knobRect.size.width - image_rect.size.width) / 2;
 611     knobRect.size.width = image_rect.size.width;
 612     knobRect.size.height = image_rect.size.height;
 613     [img drawInRect:knobRect fromRect:image_rect operation:NSCompositeSourceOver fraction:1];
 614 }
 615
 616 - (void)drawRect:(NSRect)rect
 617 {
 618     /* Draw default to make sure the slider behaves correctly */
 619     [[NSGraphicsContext currentContext] saveGraphicsState];
 620     NSRectClip(NSZeroRect);
 621     [super drawRect:rect];
 622     [[NSGraphicsContext currentContext] restoreGraphicsState];
 623
 624     NSRect knobRect = [[self cell] knobRectFlipped:NO];
 625     knobRect.origin.y+=7.5;
 626     [[[NSColor blackColor] colorWithAlphaComponent:0.6] set];
 627     [self drawKnobInRect: knobRect];
 628 }
 629
 630 @end
 631
 632 /*****************************************************************************
 633 * VLCFSVolumeSlider
 634 *****************************************************************************/
 635 @implementation VLCFSVolumeSlider
 636 - (void)drawKnobInRect:(NSRect) knobRect
 637 {
 638     NSRect image_rect;
 639     NSImage *img = [NSImage imageNamed:@"fs_volume_slider_knob"];
 640     image_rect.size = [img size];
 641     image_rect.origin.x = 0;
 642     image_rect.origin.y = 0;
 643     knobRect.origin.x += (knobRect.size.width - image_rect.size.width) / 2;
 644     knobRect.size.width = image_rect.size.width;
 645     knobRect.size.height = image_rect.size.height;
 646     [img drawInRect:knobRect fromRect:image_rect operation:NSCompositeSourceOver fraction:1];
 647 }
 648
 649 - (void)drawRect:(NSRect)rect
 650 {
 651     /* Draw default to make sure the slider behaves correctly */
 652     [[NSGraphicsContext currentContext] saveGraphicsState];
 653     NSRectClip(NSZeroRect);
 654     [super drawRect:rect];
 655     [[NSGraphicsContext currentContext] restoreGraphicsState];
 656
 657     NSRect knobRect = [[self cell] knobRectFlipped:NO];
 658     knobRect.origin.y+=6;
 659     [[[NSColor blackColor] colorWithAlphaComponent:0.6] set];
 660     [self drawKnobInRect: knobRect];
 661 }
 662
 663 @end
 664