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

   1 /*****************************************************************************
   2  * prefs.m: MacOS X module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
   8  *          Derk-Jan Hartman <hartman 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 /* VLCPrefs manages the main preferences dialog
  26    the class is related to wxwindows intf, PrefsPanel */
  27 /* VLCTreeItem should contain:
  28    - the children of the treeitem
  29    - the associated prefs widgets
  30    - the documentview with all the prefs widgets in it
  31    - a saveChanges action
  32    - a revertChanges action
  33    - a redraw view action
  34    - the children action should generate a list of the treeitems children (to be used by VLCPrefs datasource)
  35
  36    The class is sort of a mix of wxwindows intfs, PrefsTreeCtrl and ConfigTreeData
  37 */
  38 /* VLCConfigControl are subclassed NSView's containing and managing individual config items
  39    the classes are VERY closely related to wxwindows ConfigControls */
  40
  41 /*****************************************************************************
  42  * Preamble
  43  *****************************************************************************/
  44 #include <stdlib.h>                                      /* malloc(), free() */
  45 #include <sys/param.h>                                    /* for MAXPATHLEN */
  46 #include <string.h>
  47
  48 #ifdef HAVE_CONFIG_H
  49 # include "config.h"
  50 #endif
  51
  52 #include <vlc_common.h>
  53 #include <vlc_config_cat.h>
  54
  55 #import "intf.h"
  56 #import "prefs.h"
  57 #import "simple_prefs.h"
  58 #import "prefs_widgets.h"
  59 #import "vlc_keys.h"
  60
  61 /* /!\ Warning: Unreadable code :/ */
  62
  63 @interface VLCTreeItem : NSObject
  64 {
  65     NSString *o_name;
  66     NSString *o_title;
  67     NSString *o_help;
  68     vlc_object_t * _vlc_object;
  69     VLCTreeItem *o_parent;
  70     NSMutableArray *o_children;
  71     int i_object_category;
  72     NSMutableArray *o_subviews;
  73 }
  74
  75 - (id)initWithName: (NSString *)o_item_name
  76     withTitle: (NSString *)o_item_title
  77     withHelp: (NSString *)o_item_help
  78     withObject: (vlc_object_t *)object
  79     parent:(VLCTreeItem *)o_parent_item
  80     children:(NSMutableArray *)o_children_array
  81     whithCategory: (int) i_category;
  82
  83 + (VLCTreeItem *)rootItem;
  84 - (int)numberOfChildren;
  85 - (VLCTreeItem *)childAtIndex:(int)i_index;
  86 - (vlc_object_t*)vlcObject;
  87 - (NSString *)name;
  88 - (NSString *)title;
  89 - (NSString *)help;
  90 - (BOOL)hasPrefs:(NSString *)o_module_name;
  91 - (NSView *)showView:(NSScrollView *)o_prefs_view;
  92 - (void)applyChanges;
  93 - (void)resetView;
  94
  95 @end
  96
  97 #pragma mark -
  98
  99 /*****************************************************************************
 100  * VLCPrefs implementation
 101  *****************************************************************************/
 102 @implementation VLCPrefs
 103
 104 static VLCPrefs *_o_sharedMainInstance = nil;
 105
 106 + (VLCPrefs *)sharedInstance
 107 {
 108     return _o_sharedMainInstance ? _o_sharedMainInstance : [[self alloc] init];
 109 }
 110
 111 - (id)init
 112 {
 113     if( _o_sharedMainInstance ) {
 114         [self dealloc];
 115     }
 116     else
 117     {
 118         _o_sharedMainInstance = [super init];
 119         p_intf = VLCIntf;
 120         o_empty_view = [[NSView alloc] init];
 121     }
 122
 123     return _o_sharedMainInstance;
 124 }
 125
 126 - (void)dealloc
 127 {
 128     [o_empty_view release];
 129     [super dealloc];
 130 }
 131
 132 - (void)awakeFromNib
 133 {
 134     p_intf = VLCIntf;
 135
 136     [self initStrings];
 137     [o_prefs_view setBorderType: NSGrooveBorder];
 138     [o_prefs_view setHasVerticalScroller: YES];
 139     [o_prefs_view setDrawsBackground: NO];
 140     [o_prefs_view setDocumentView: o_empty_view];
 141     [o_tree selectRow:0 byExtendingSelection:NO];
 142 }
 143
 144 - (void)setTitle: (NSString *) o_title_name
 145 {
 146     [o_title setStringValue: o_title_name];
 147 }
 148
 149 - (void)showPrefs
 150 {
 151     [[o_basicFull_matrix cellAtRow:0 column:0] setState: NSOffState];
 152     [[o_basicFull_matrix cellAtRow:0 column:1] setState: NSOnState];
 153
 154     [o_prefs_window center];
 155     [o_prefs_window makeKeyAndOrderFront:self];
 156 }
 157
 158 - (void)initStrings
 159 {
 160     [o_prefs_window setTitle: _NS("Preferences")];
 161     [o_save_btn setTitle: _NS("Save")];
 162     [o_cancel_btn setTitle: _NS("Cancel")];
 163     [o_reset_btn setTitle: _NS("Reset All")];
 164     [[o_basicFull_matrix cellAtRow: 0 column: 0] setStringValue: _NS("Basic")];
 165     [[o_basicFull_matrix cellAtRow: 0 column: 1] setStringValue: _NS("All")];
 166 }
 167
 168 - (IBAction)savePrefs: (id)sender
 169 {
 170     /* TODO: call savePrefs on Root item */
 171     [[VLCTreeItem rootItem] applyChanges];
 172     config_SaveConfigFile( p_intf, NULL );
 173     [o_prefs_window orderOut:self];
 174 }
 175
 176 - (IBAction)closePrefs: (id)sender
 177 {
 178     [o_prefs_window orderOut:self];
 179 }
 180
 181 - (IBAction)resetAll: (id)sender
 182 {
 183     NSBeginInformationalAlertSheet(_NS("Reset Preferences"), _NS("Cancel"),
 184         _NS("Continue"), nil, o_prefs_window, self,
 185         @selector(sheetDidEnd: returnCode: contextInfo:), NULL, nil,
 186         _NS("Beware this will reset the VLC media player preferences.\n"
 187             "Are you sure you want to continue?") );
 188 }
 189
 190 - (void)sheetDidEnd:(NSWindow *)o_sheet returnCode:(int)i_return
 191     contextInfo:(void *)o_context
 192 {
 193     if( i_return == NSAlertAlternateReturn )
 194     {
 195         [o_prefs_view setDocumentView: o_empty_view];
 196         config_ResetAll( p_intf );
 197         [[VLCTreeItem rootItem] resetView];
 198         [[o_tree itemAtRow:[o_tree selectedRow]]
 199             showView:o_prefs_view];
 200     }
 201 }
 202
 203 - (IBAction)buttonAction: (id)sender
 204 {
 205     [o_prefs_window orderOut: self];
 206     [[o_basicFull_matrix cellAtRow:0 column:0] setState: NSOnState];
 207     [[o_basicFull_matrix cellAtRow:0 column:1] setState: NSOffState];
 208     [[[VLCMain sharedInstance] getSimplePreferences] showSimplePrefs];
 209 }
 210
 211 - (void)loadConfigTree
 212 {
 213 }
 214
 215 - (void)outlineViewSelectionIsChanging:(NSNotification *)o_notification
 216 {
 217 }
 218
 219 /* update the document view to the view of the selected tree item */
 220 - (void)outlineViewSelectionDidChange:(NSNotification *)o_notification
 221 {
 222     [[o_tree itemAtRow:[o_tree selectedRow]] showView: o_prefs_view];
 223 }
 224
 225 @end
 226
 227 @implementation VLCPrefs (NSTableDataSource)
 228
 229 - (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
 230     return (item == nil) ? [[VLCTreeItem rootItem] numberOfChildren] :
 231                             [item numberOfChildren];
 232 }
 233
 234 - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item
 235 {
 236     return (item == nil) ? YES : ( ([item numberOfChildren] != -1) &&
 237                                    ([item numberOfChildren] != 0));
 238 }
 239
 240 - (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item {
 241     return (item == nil) ? [[VLCTreeItem rootItem] childAtIndex:index] :
 242                             (id)[item childAtIndex:index];
 243 }
 244
 245 - (id)outlineView:(NSOutlineView *)outlineView
 246     objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
 247 {
 248     return (item == nil) ? @"" : (id)[item name];
 249 }
 250
 251 @end
 252
 253 @implementation VLCTreeItem
 254
 255 static VLCTreeItem *o_root_item = nil;
 256
 257 #define IsALeafNode ((id)-1)
 258
 259 - (id)initWithName: (NSString *)o_item_name
 260     withTitle: (NSString *)o_item_title
 261     withHelp: (NSString *)o_item_help
 262     withObject: (vlc_object_t *)object
 263     parent:(VLCTreeItem *)o_parent_item
 264     children:(NSMutableArray *)o_children_array
 265     whithCategory: (int) i_category
 266 {
 267     self = [super init];
 268
 269     if( self != nil )
 270     {
 271         o_name = [o_item_name copy];
 272         o_title= [o_item_title copy];
 273         o_help= [o_item_help copy];
 274         _vlc_object = object ? vlc_object_hold( object ) : NULL;
 275         o_parent = o_parent_item;
 276         o_children = o_children_array;
 277         i_object_category = i_category;
 278         o_subviews = nil;
 279     }
 280     return( self );
 281 }
 282
 283 + (VLCTreeItem *)rootItem
 284 {
 285    if (o_root_item == nil)
 286         o_root_item = [[VLCTreeItem alloc] initWithName:@"main" withTitle:@"main" withHelp:@"" withObject:NULL
 287             parent:nil children:[[NSMutableArray alloc] initWithCapacity:10]
 288             whithCategory: -1];
 289    return o_root_item;
 290 }
 291
 292 - (void)dealloc
 293 {
 294     if(_vlc_object) vlc_object_release( _vlc_object );
 295     if (o_children != IsALeafNode) [o_children release];
 296     [o_name release];
 297     [o_title release];
 298     [o_help release];
 299     [super dealloc];
 300 }
 301
 302 /* Creates and returns the array of children
 303  * Loads children incrementally */
 304 - (NSArray *)children
 305 {
 306     if( o_children == IsALeafNode )
 307         return o_children;
 308     if( [ o_children count] == 0 )
 309     {
 310         intf_thread_t   *p_intf = VLCIntf;
 311         vlc_list_t      *p_list;
 312         module_t        *p_module = NULL;
 313         module_t        *p_main_module;
 314         module_config_t *p_items;
 315         int             i = 0;
 316         if( [[self name] isEqualToString: @"main"] )
 317         {
 318             p_main_module = module_get_main( p_intf );
 319             assert( p_main_module );
 320
 321             /* We found the main module */
 322             /* Enumerate config categories and store a reference so we can
 323              * generate their config panel them when it is asked by the user. */
 324             VLCTreeItem *p_last_category = NULL;
 325             unsigned int i_confsize;
 326             p_items = module_config_get( p_main_module, &i_confsize );
 327             o_children = [[NSMutableArray alloc] initWithCapacity:10];
 328             for( int i = 0; i < i_confsize; i++ )
 329             {
 330                 NSString *o_child_name;
 331                 NSString *o_child_title;
 332                 NSString *o_child_help;
 333
 334                 switch( p_items[i].i_type )
 335                 {
 336                     case CONFIG_CATEGORY:
 337                         if( p_items[i].value.i == -1 ) break;
 338
 339                         o_child_name = [[VLCMain sharedInstance]
 340                             localizedString: config_CategoryNameGet( p_items[i].value.i )];
 341                         o_child_title = o_child_name;
 342                         o_child_help = [[VLCMain sharedInstance]
 343                             localizedString: config_CategoryHelpGet( p_items[i].value.i )];
 344                         p_last_category = [VLCTreeItem alloc];
 345                         [o_children addObject:[p_last_category
 346                             initWithName: o_child_name
 347                             withTitle: o_child_title
 348                             withHelp: o_child_help
 349                             withObject: (vlc_object_t*)p_main_module
 350                             parent:self
 351                             children:[[NSMutableArray alloc]
 352                                 initWithCapacity:10]
 353                             whithCategory: p_items[i].value.i]];
 354                         break;
 355                     case CONFIG_SUBCATEGORY:
 356                         if( p_items[i].value.i == -1 ) break;
 357
 358                         if( p_items[i].value.i != SUBCAT_PLAYLIST_GENERAL &&
 359                             p_items[i].value.i != SUBCAT_VIDEO_GENERAL &&
 360                             p_items[i].value.i != SUBCAT_INPUT_GENERAL &&
 361                             p_items[i].value.i != SUBCAT_INTERFACE_GENERAL &&
 362                             p_items[i].value.i != SUBCAT_SOUT_GENERAL &&
 363                             p_items[i].value.i != SUBCAT_ADVANCED_MISC &&
 364                             p_items[i].value.i != SUBCAT_AUDIO_GENERAL )
 365                         {
 366                             o_child_name = [[VLCMain sharedInstance]
 367                                 localizedString: config_CategoryNameGet( p_items[i].value.i ) ];
 368                             o_child_title = o_child_name;
 369                             o_child_help = [[VLCMain sharedInstance]
 370                                 localizedString: config_CategoryHelpGet( p_items[i].value.i ) ];
 371
 372                             [p_last_category->o_children
 373                                 addObject:[[VLCTreeItem alloc]
 374                                 initWithName: o_child_name
 375                                 withTitle: o_child_title
 376                                 withHelp: o_child_help
 377                                 withObject: (vlc_object_t*)p_main_module
 378                                 parent:p_last_category
 379                                 children:[[NSMutableArray alloc]
 380                                     initWithCapacity:10]
 381                                 whithCategory: p_items[i].value.i]];
 382                         }
 383
 384                         break;
 385                     default:
 386                         break;
 387                 }
 388             }
 389
 390             vlc_object_release( (vlc_object_t *)p_main_module );
 391
 392             /* List the modules */
 393             p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 394             if( !p_list ) return nil;
 395
 396             /* Build a tree of the plugins */
 397             /* Add the capabilities */
 398             for( i = 0; i < p_list->i_count; i++ )
 399             {
 400                 unsigned int confsize;
 401                 p_module = (module_t *)p_list->p_values[i].p_object;
 402
 403                 /* Exclude the main module */
 404                 if( module_is_main( p_module ) )
 405                     continue;
 406
 407                 /* Exclude empty plugins (submodules don't have config */
 408                 /* options, they are stored in the parent module) */
 409                 p_items = module_config_get( p_module, &confsize );
 410
 411                 unsigned int j;
 412
 413                 int i_category = -1;
 414                 int i_subcategory = -1;
 415                 bool b_item = false;
 416
 417                 for( j = 0; j < confsize; j++ )
 418                 {
 419                     if( p_items[j].i_type == CONFIG_CATEGORY )
 420                         i_category = p_items[j].value.i;
 421                     else if( p_items[j].i_type == CONFIG_SUBCATEGORY )
 422                         i_subcategory = p_items[j].value.i;
 423
 424                     if( p_items[j].i_type & CONFIG_ITEM )
 425                         b_item = true;
 426
 427                     if( b_item && i_category >= 0 && i_subcategory >= 0 )
 428                         break;
 429                 }
 430
 431                 if( !b_item ) continue;
 432
 433                 /* Find the right category item */
 434
 435                 long cookie;
 436                 bool b_found = false;
 437
 438                 VLCTreeItem* p_category_item, * p_subcategory_item;
 439                 for (j = 0 ; j < [o_children count] ; j++)
 440                 {
 441                     p_category_item = [o_children objectAtIndex: j];
 442                     if( p_category_item->i_object_category == i_category )
 443                     {
 444                         b_found = true;
 445                         break;
 446                     }
 447                 }
 448                 if( !b_found ) continue;
 449
 450                 /* Find subcategory item */
 451                 b_found = false;
 452                 cookie = -1;
 453                 for (j = 0 ; j < [p_category_item->o_children count] ; j++)
 454                 {
 455                     p_subcategory_item = [p_category_item->o_children
 456                                             objectAtIndex: j];
 457                     if( p_subcategory_item->i_object_category == i_subcategory )
 458                     {
 459                         b_found = true;
 460                         break;
 461                     }
 462                 }
 463                 if( !b_found )
 464                     p_subcategory_item = p_category_item;
 465
 466                 [p_subcategory_item->o_children addObject:[[VLCTreeItem alloc]
 467                     initWithName:[[VLCMain sharedInstance]
 468                         localizedString: module_get_name( p_module, false ) ]
 469                     withTitle:[[VLCMain sharedInstance]
 470                         localizedString:  module_GetLongName( p_module ) ]
 471                     withHelp: @""
 472                     withObject: (vlc_object_t*)p_main_module
 473                     parent:p_subcategory_item
 474                     children:IsALeafNode
 475                     whithCategory: -1]];
 476                 }
 477             vlc_list_release( p_list );
 478         }
 479     }
 480     return o_children;
 481 }
 482
 483 - (vlc_object_t *)vlcObject
 484 {
 485     return vlc_object_hold(_vlc_object);
 486 }
 487
 488 - (NSString *)name
 489 {
 490     return [[o_name retain] autorelease];
 491 }
 492
 493 - (NSString *)title
 494 {
 495     return [[o_title retain] autorelease];
 496 }
 497
 498 - (NSString *)help
 499 {
 500     return [[o_help retain] autorelease];
 501 }
 502
 503 - (VLCTreeItem *)childAtIndex:(int)i_index
 504 {
 505     return [[self children] objectAtIndex:i_index];
 506 }
 507
 508 - (int)numberOfChildren {
 509     id i_tmp = [self children];
 510     return (i_tmp == IsALeafNode) ? (-1) : (int)[i_tmp count];
 511 }
 512
 513 - (BOOL)hasPrefs:(NSString *)o_module_name
 514 {
 515     intf_thread_t *p_intf = VLCIntf;
 516     module_t *p_parser;
 517     vlc_list_t *p_list;
 518     char *psz_module_name;
 519     int i_index;
 520
 521     psz_module_name = (char *)[o_module_name UTF8String];
 522
 523     /* look for module */
 524     p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 525
 526     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 527     {
 528         p_parser = (module_t *)p_list->p_values[i_index].p_object ;
 529
 530         if( !strcmp( module_get_object( p_parser ), psz_module_name ) )
 531         {
 532             unsigned int confsize;
 533             module_config_get( p_parser, &confsize );
 534             BOOL b_has_prefs = confsize != 0;
 535             vlc_list_release( p_list );
 536             return( b_has_prefs );
 537         }
 538     }
 539
 540     vlc_list_release( p_list );
 541
 542     return( NO );
 543 }
 544
 545 - (NSView *)showView:(NSScrollView *)o_prefs_view
 546 {
 547     NSRect          s_vrc;
 548     NSView          *o_view;
 549
 550     [[VLCPrefs sharedInstance] setTitle: [self title]];
 551     /* NSLog( [self getHelp] ); */
 552     s_vrc = [[o_prefs_view contentView] bounds]; s_vrc.size.height -= 4;
 553     o_view = [[VLCFlippedView alloc] initWithFrame: s_vrc];
 554     [o_view setAutoresizingMask: NSViewWidthSizable | NSViewMinYMargin |
 555                                     NSViewMaxYMargin];
 556
 557 /* Create all subviews if it isn't already done because we cannot use */
 558 /* setHiden for MacOS < 10.3*/
 559     if( o_subviews == nil )
 560     {
 561         intf_thread_t   *p_intf = VLCIntf;
 562         vlc_list_t      *p_list;
 563         module_t        *p_module = NULL;
 564         module_t        *p_main_module;
 565         module_config_t *p_items;
 566         unsigned int confsize;
 567
 568         o_subviews = [[NSMutableArray alloc] initWithCapacity:10];
 569         /* Get a pointer to the module */
 570         if( i_object_category == -1 )
 571         {
 572             p_module = (module_t *) [self vlcObject];
 573             assert( p_module );
 574
 575             p_items = module_config_get( p_module, &confsize );
 576
 577             for( unsigned int i = 0; i < confsize; i++ )
 578             {
 579                 switch( p_items[i].i_type )
 580                 {
 581                     case CONFIG_SUBCATEGORY:
 582                     case CONFIG_CATEGORY:
 583                     case CONFIG_SECTION:
 584                     case CONFIG_HINT_USAGE:
 585                         break;
 586                     default:
 587                     {
 588                         VLCConfigControl *o_control = nil;
 589                         o_control = [VLCConfigControl newControl:&p_items[i]
 590                                                       withView:o_view];
 591                         if( o_control )
 592                         {
 593                             [o_control setAutoresizingMask: NSViewMaxYMargin |
 594                                 NSViewWidthSizable];
 595                             [o_subviews addObject: o_control];
 596                         }
 597                     }
 598                     break;
 599                 }
 600             }
 601             vlc_object_release( (vlc_object_t*)p_module );
 602         }
 603         else
 604         {
 605             p_main_module = module_get_main( p_intf );
 606             assert( p_main_module );
 607             module_config_t *p_items;
 608
 609             unsigned int i, confsize;
 610             p_items = module_config_get( p_main_module, &confsize );
 611
 612             /* We need to first, find the right (sub)category,
 613              * and then abort when we find a new (sub)category. Part of the Ugliness. */
 614             bool in_right_category = false;
 615             bool in_subcategory = false;
 616             bool done = false;
 617             for( i = 0; i < confsize; i++ )
 618             {
 619                 if( !p_items[i].i_type )
 620                 {
 621                     msg_Err( p_intf, "invalid preference item found" );
 622                     break;
 623                 }
 624
 625                 switch( p_items[i].i_type )
 626                 {
 627                     case CONFIG_CATEGORY:
 628                         if(!in_right_category && p_items[i].value.i == i_object_category)
 629                             in_right_category = true;
 630                         else if(in_right_category)
 631                             done = true;
 632                         break;
 633                     case CONFIG_SUBCATEGORY:
 634                         if(!in_right_category && p_items[i].value.i == i_object_category)
 635                         {
 636                             in_right_category = true;
 637                             in_subcategory = true;
 638                         }
 639                         else if(in_right_category && in_subcategory)
 640                             done = true;
 641                         break;
 642                     case CONFIG_SECTION:
 643                     case CONFIG_HINT_USAGE:
 644                         break;
 645                     default:
 646                     {
 647                         if(!in_right_category) break;
 648
 649                         VLCConfigControl *o_control = nil;
 650                         o_control = [VLCConfigControl newControl:&p_items[i]
 651                                                       withView:o_view];
 652                         if( o_control != nil )
 653                         {
 654                             [o_control setAutoresizingMask: NSViewMaxYMargin |
 655                                                             NSViewWidthSizable];
 656                             [o_subviews addObject: o_control];
 657                         }
 658                         break;
 659                     }
 660                 }
 661                 if( done ) break;
 662             }
 663             vlc_object_release( (vlc_object_t*)p_main_module );
 664         }
 665     }
 666
 667     if( o_view != nil )
 668     {
 669         int i_lastItem = 0;
 670         int i_yPos = -2;
 671         int i_max_label = 0;
 672
 673         NSEnumerator *enumerator = [o_subviews objectEnumerator];
 674         VLCConfigControl *o_widget;
 675         NSRect o_frame;
 676
 677         while( ( o_widget = [enumerator nextObject] ) )
 678             if( i_max_label < [o_widget getLabelSize] )
 679                 i_max_label = [o_widget getLabelSize];
 680
 681         enumerator = [o_subviews objectEnumerator];
 682         while( ( o_widget = [enumerator nextObject] ) )
 683         {
 684             int i_widget;
 685
 686             i_widget = [o_widget getViewType];
 687             i_yPos += [VLCConfigControl calcVerticalMargin:i_widget
 688                 lastItem:i_lastItem];
 689             [o_widget setYPos:i_yPos];
 690             o_frame = [o_widget frame];
 691             o_frame.size.width = [o_view frame].size.width -
 692                                     LEFTMARGIN - RIGHTMARGIN;
 693             [o_widget setFrame:o_frame];
 694             [o_widget alignWithXPosition: i_max_label];
 695             i_yPos += [o_widget frame].size.height;
 696             i_lastItem = i_widget;
 697             [o_view addSubview:o_widget];
 698          }
 699
 700         o_frame = [o_view frame];
 701         o_frame.size.height = i_yPos;
 702         [o_view setFrame:o_frame];
 703         [o_prefs_view setDocumentView:o_view];
 704
 705     }
 706     return o_view;
 707 }
 708
 709 - (void)applyChanges
 710 {
 711     unsigned int i;
 712     if( o_subviews != nil )
 713         //Item has been shown
 714         for( i = 0 ; i < [o_subviews count] ; i++ )
 715             [[o_subviews objectAtIndex:i] applyChanges];
 716
 717     if( o_children != IsALeafNode )
 718         for( i = 0 ; i < [o_children count] ; i++ )
 719             [[o_children objectAtIndex:i] applyChanges];
 720 }
 721
 722 - (void)resetView
 723 {
 724     unsigned int i;
 725     if( o_subviews != nil )
 726     {
 727         //Item has been shown
 728         [o_subviews release];
 729         o_subviews = nil;
 730     }
 731
 732     if( o_children != IsALeafNode )
 733         for( i = 0 ; i < [o_children count] ; i++ )
 734             [[o_children objectAtIndex:i] resetView];
 735 }
 736
 737 @end
 738
 739
 740 @implementation VLCFlippedView
 741
 742 - (BOOL)isFlipped
 743 {
 744     return( YES );
 745 }
 746
 747 @end