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

   1 /*****************************************************************************
   2  * prefs.m: MacOS X module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002-2005 VideoLAN
   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., 59 Temple Place - Suite 330, Boston, MA  02111, 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    - an advanced action (to hide/show advanced options)
  34    - a redraw view action
  35    - the children action should generate a list of the treeitems children (to be used by VLCPrefs datasource)
  36
  37    The class is sort of a mix of wxwindows intfs, PrefsTreeCtrl and ConfigTreeData
  38 */
  39 /* VLCConfigControl are subclassed NSView's containing and managing individual config items
  40    the classes are VERY closely related to wxwindows ConfigControls */
  41
  42 /*****************************************************************************
  43  * Preamble
  44  *****************************************************************************/
  45 #include <stdlib.h>                                      /* malloc(), free() */
  46 #include <sys/param.h>                                    /* for MAXPATHLEN */
  47 #include <string.h>
  48
  49 #include <vlc/vlc.h>
  50 #include <vlc_config_cat.h>
  51
  52 #include "intf.h"
  53 #include "prefs.h"
  54 #include "prefs_widgets.h"
  55 #include "vlc_keys.h"
  56
  57 /*****************************************************************************
  58  * VLCPrefs implementation
  59  *****************************************************************************/
  60 @implementation VLCPrefs
  61
  62 static VLCPrefs *_o_sharedMainInstance = nil;
  63
  64 + (VLCPrefs *)sharedInstance
  65 {
  66     return _o_sharedMainInstance ? _o_sharedMainInstance : [[self alloc] init];
  67 }
  68
  69 - (id)init
  70 {
  71     if( _o_sharedMainInstance ) {
  72         [self dealloc];
  73     }
  74     else
  75     {
  76         _o_sharedMainInstance = [super init];
  77         p_intf = VLCIntf;
  78         o_empty_view = [[NSView alloc] init];
  79     }
  80
  81     return _o_sharedMainInstance;
  82 }
  83
  84 - (void)dealloc
  85 {
  86     [o_empty_view release];
  87     [super dealloc];
  88 }
  89
  90 - (void)awakeFromNib
  91 {
  92     p_intf = VLCIntf;
  93     b_advanced = config_GetInt( p_intf, "advanced" );
  94
  95     [self initStrings];
  96     [o_advanced_ckb setState: b_advanced];
  97     [o_prefs_view setBorderType: NSGrooveBorder];
  98     [o_prefs_view setHasVerticalScroller: YES];
  99     [o_prefs_view setDrawsBackground: NO];
 100     [o_prefs_view setDocumentView: o_empty_view];
 101     [o_tree selectRow:0 byExtendingSelection:NO];
 102 }
 103
 104 - (void)showPrefs
 105 {
 106     /* load our nib (if not already loaded) */
 107     [NSBundle loadNibNamed:@"Preferences" owner:self];
 108
 109     [o_prefs_window center];
 110     [o_prefs_window makeKeyAndOrderFront:self];
 111 }
 112
 113 - (void)initStrings
 114 {
 115     [o_prefs_window setTitle: _NS("Preferences")];
 116     [o_save_btn setTitle: _NS("Save")];
 117     [o_cancel_btn setTitle: _NS("Cancel")];
 118     [o_reset_btn setTitle: _NS("Reset All")];
 119     [o_advanced_ckb setTitle: _NS("Advanced")];
 120 }
 121
 122 - (IBAction)savePrefs: (id)sender
 123 {
 124     /* TODO: call savePrefs on Root item */
 125     [[VLCTreeItem rootItem] applyChanges];
 126     config_SaveConfigFile( p_intf, NULL );
 127     [o_prefs_window orderOut:self];
 128 }
 129
 130 - (IBAction)closePrefs: (id)sender
 131 {
 132     [o_prefs_window orderOut:self];
 133 }
 134
 135 - (IBAction)resetAll: (id)sender
 136 {
 137     NSBeginInformationalAlertSheet(_NS("Reset Preferences"), _NS("Cancel"),
 138         _NS("Continue"), nil, o_prefs_window, self,
 139         @selector(sheetDidEnd: returnCode: contextInfo:), NULL, nil,
 140         _NS("Beware this will reset your VLC media player preferences.\n"
 141             "Are you sure you want to continue?") );
 142 }
 143
 144 - (void)sheetDidEnd:(NSWindow *)o_sheet returnCode:(int)i_return
 145     contextInfo:(void *)o_context
 146 {
 147     if( i_return == NSAlertAlternateReturn )
 148     {
 149         [o_prefs_view setDocumentView: o_empty_view];
 150         config_ResetAll( p_intf );
 151         [[VLCTreeItem rootItem] resetView];
 152         [[o_tree itemAtRow:[o_tree selectedRow]]
 153             showView:o_prefs_view advancedView:
 154             ( [o_advanced_ckb state] == NSOnState ) ? VLC_TRUE : VLC_FALSE];
 155     }
 156 }
 157
 158 - (IBAction)advancedToggle: (id)sender
 159 {
 160     b_advanced = !b_advanced;
 161     [o_advanced_ckb setState: b_advanced];
 162     /* refresh the view of the current treeitem */
 163     [[o_tree itemAtRow:[o_tree selectedRow]] showView:o_prefs_view advancedView:
 164         ( [o_advanced_ckb state] == NSOnState ) ? VLC_TRUE : VLC_FALSE];
 165 }
 166
 167 - (void)loadConfigTree
 168 {
 169 }
 170
 171 - (void)outlineViewSelectionIsChanging:(NSNotification *)o_notification
 172 {
 173 }
 174
 175 /* update the document view to the view of the selected tree item */
 176 - (void)outlineViewSelectionDidChange:(NSNotification *)o_notification
 177 {
 178     [[o_tree itemAtRow:[o_tree selectedRow]] showView: o_prefs_view
 179         advancedView:( [o_advanced_ckb state] == NSOnState ) ?
 180         VLC_TRUE : VLC_FALSE];
 181 }
 182
 183 @end
 184
 185 @implementation VLCPrefs (NSTableDataSource)
 186
 187 - (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
 188     return (item == nil) ? [[VLCTreeItem rootItem] numberOfChildren] :
 189                             [item numberOfChildren];
 190 }
 191
 192 - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item
 193 {
 194     return (item == nil) ? YES : ( ([item numberOfChildren] != -1) &&
 195                                    ([item numberOfChildren] != 0));
 196 }
 197
 198 - (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item {
 199     return (item == nil) ? [[VLCTreeItem rootItem] childAtIndex:index] :
 200                             [item childAtIndex:index];
 201 }
 202
 203 - (id)outlineView:(NSOutlineView *)outlineView
 204     objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
 205 {
 206     return (item == nil) ? @"" : (id)[item getName];
 207 }
 208
 209 @end
 210
 211 @implementation VLCTreeItem
 212
 213 static VLCTreeItem *o_root_item = nil;
 214
 215 #define IsALeafNode ((id)-1)
 216
 217 - (id)initWithName: (NSString *)o_item_name ID: (int)i_id
 218     parent:(VLCTreeItem *)o_parent_item
 219     children:(NSMutableArray *)o_children_array
 220     whithCategory: (int) i_category
 221 {
 222     self = [super init];
 223
 224     if( self != nil )
 225     {
 226         o_name = [o_item_name copy];
 227         i_object_id = i_id;
 228         o_parent = o_parent_item;
 229         o_children = o_children_array;
 230         i_object_category = i_category;
 231         o_subviews = nil;
 232     }
 233     return( self );
 234 }
 235
 236 + (VLCTreeItem *)rootItem
 237 {
 238    if (o_root_item == nil)
 239         o_root_item = [[VLCTreeItem alloc] initWithName:@"main" ID:0
 240             parent:nil children:[[NSMutableArray alloc] initWithCapacity:10]
 241             whithCategory: -1];
 242    return o_root_item;
 243 }
 244
 245 - (void)dealloc
 246 {
 247     if (o_children != IsALeafNode) [o_children release];
 248     [o_name release];
 249     [super dealloc];
 250 }
 251
 252 /* Creates and returns the array of children
 253  * Loads children incrementally */
 254 - (NSArray *)children
 255 {
 256     if( o_children == IsALeafNode )
 257         return o_children;
 258     if( [ o_children count] == 0 )
 259     {
 260         intf_thread_t   *p_intf = VLCIntf;
 261         vlc_list_t      *p_list;
 262         module_t        *p_module = NULL;
 263         module_config_t *p_item;
 264         int             i_index;
 265
 266         /* List the modules */
 267         p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 268         if( !p_list ) return nil;
 269
 270         if( [[self getName] isEqualToString: @"main"] )
 271         {
 272             /*
 273             * Find the main module
 274             */
 275             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 276             {
 277                 p_module = (module_t *)p_list->p_values[i_index].p_object;
 278                 if( !strcmp( p_module->psz_object_name, "main" ) )
 279                     break;
 280             }
 281             if( p_module == NULL )
 282             {
 283                 msg_Err( p_intf,
 284                     "could not find the main module in our preferences" );
 285                 return nil;
 286             }
 287             if( i_index < p_list->i_count )
 288             {
 289                 /* We found the main module */
 290                 /* Enumerate config categories and store a reference so we can
 291                  * generate their config panel them when it is asked by the user. */
 292                 VLCTreeItem *p_last_category = NULL;
 293                 p_item = p_module->p_config;
 294                 o_children = [[NSMutableArray alloc] initWithCapacity:10];
 295                 if( p_item ) do
 296                 {
 297                     NSString *o_child_name;
 298                     switch( p_item->i_type )
 299                     {
 300                     case CONFIG_CATEGORY:
 301                         o_child_name = [[VLCMain sharedInstance]
 302     localizedString: config_CategoryNameGet(p_item->i_value ) ];
 303                         p_last_category = [VLCTreeItem alloc];
 304                         [o_children addObject:[p_last_category
 305                             initWithName: o_child_name
 306                             ID: p_item->i_value
 307                             parent:self
 308                             children:[[NSMutableArray alloc]
 309                                 initWithCapacity:10]
 310                             whithCategory: p_item - p_module->p_config]];
 311                         break;
 312                     case CONFIG_SUBCATEGORY:
 313                         o_child_name = [[VLCMain sharedInstance]
 314     localizedString: config_CategoryNameGet(p_item->i_value ) ];
 315                         if( p_item->i_value != SUBCAT_PLAYLIST_GENERAL &&
 316                             p_item->i_value != SUBCAT_VIDEO_GENERAL &&
 317                             p_item->i_value != SUBCAT_AUDIO_GENERAL )
 318                             [p_last_category->o_children
 319                                 addObject:[[VLCTreeItem alloc]
 320                                 initWithName: o_child_name
 321                                 ID: p_item->i_value
 322                                 parent:p_last_category
 323                                 children:[[NSMutableArray alloc]
 324                                     initWithCapacity:10]
 325                                 whithCategory: p_item - p_module->p_config]];
 326                         break;
 327                     default:
 328                         break;
 329                     }
 330                 } while( p_item->i_type != CONFIG_HINT_END && p_item++ );
 331             }
 332
 333             /* Build a tree of the plugins */
 334             /* Add the capabilities */
 335             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 336             {
 337                 p_module = (module_t *)p_list->p_values[i_index].p_object;
 338
 339                 /* Exclude the main module */
 340                 if( !strcmp( p_module->psz_object_name, "main" ) )
 341                     continue;
 342
 343                 /* Exclude empty plugins (submodules don't have config */
 344                 /* options, they are stored in the parent module) */
 345                 if( p_module->b_submodule )
 346                     continue;
 347                 else
 348                     p_item = p_module->p_config;
 349
 350                 if( !p_item ) continue;
 351                 int i_category = -1;
 352                 int i_subcategory = -1;
 353                 int i_options = 0;
 354                 do
 355                 {
 356                     if( p_item->i_type == CONFIG_CATEGORY )
 357                         i_category = p_item->i_value;
 358                     else if( p_item->i_type == CONFIG_SUBCATEGORY )
 359                         i_subcategory = p_item->i_value;
 360
 361                     if( p_item->i_type & CONFIG_ITEM )
 362                         i_options ++;
 363                     if( i_options > 0 && i_category >= 0 && i_subcategory >= 0 )
 364                         break;
 365                 } while( p_item->i_type != CONFIG_HINT_END && p_item++ );
 366                 if( !i_options ) continue;
 367
 368                 /* Find the right category item */
 369
 370                 long cookie;
 371                 vlc_bool_t b_found = VLC_FALSE;
 372                 unsigned int i;
 373                 VLCTreeItem* p_category_item, * p_subcategory_item;
 374                 for (i = 0 ; i < [o_children count] ; i++)
 375                 {
 376                     p_category_item = [o_children objectAtIndex: i];
 377                     if( p_category_item->i_object_id == i_category )
 378                     {
 379                         b_found = VLC_TRUE;
 380                         break;
 381                     }
 382                 }
 383                 if( !b_found ) continue;
 384
 385                 /* Find subcategory item */
 386                 b_found = VLC_FALSE;
 387                 cookie = -1;
 388                 for (i = 0 ; i < [p_category_item->o_children count] ; i++)
 389                 {
 390                     p_subcategory_item = [p_category_item->o_children
 391                                             objectAtIndex: i];
 392                     if( p_subcategory_item->i_object_id == i_subcategory )
 393                     {
 394                         b_found = VLC_TRUE;
 395                         break;
 396                     }
 397                 }
 398                 if( !b_found )
 399                     p_subcategory_item = p_category_item;
 400
 401                 [p_subcategory_item->o_children addObject:[[VLCTreeItem alloc]
 402                     initWithName:[[VLCMain sharedInstance]
 403                         localizedString: p_module->psz_object_name ]
 404                     ID: p_module->i_object_id
 405                     parent:p_subcategory_item
 406                     children:IsALeafNode
 407                     whithCategory: -1]];
 408             }
 409         }
 410         vlc_list_release( p_list );
 411     }
 412     return o_children;
 413 }
 414
 415 - (int)getObjectID
 416 {
 417     return i_object_id;
 418 }
 419
 420 - (NSString *)getName
 421 {
 422     return o_name;
 423 }
 424
 425 - (VLCTreeItem *)childAtIndex:(int)i_index
 426 {
 427     return [[self children] objectAtIndex:i_index];
 428 }
 429
 430 - (int)numberOfChildren {
 431     id i_tmp = [self children];
 432     return (i_tmp == IsALeafNode) ? (-1) : (int)[i_tmp count];
 433 }
 434
 435 - (BOOL)hasPrefs:(NSString *)o_module_name
 436 {
 437     intf_thread_t *p_intf = VLCIntf;
 438     module_t *p_parser;
 439     vlc_list_t *p_list;
 440     char *psz_module_name;
 441     int i_index;
 442
 443     psz_module_name = (char *)[o_module_name UTF8String];
 444
 445     /* look for module */
 446     p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 447
 448     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 449     {
 450         p_parser = (module_t *)p_list->p_values[i_index].p_object ;
 451
 452         if( !strcmp( p_parser->psz_object_name, psz_module_name ) )
 453         {
 454             BOOL b_has_prefs = p_parser->i_config_items != 0;
 455             vlc_list_release( p_list );
 456             return( b_has_prefs );
 457         }
 458     }
 459
 460     vlc_list_release( p_list );
 461
 462     return( NO );
 463 }
 464
 465 - (NSView *)showView:(NSScrollView *)o_prefs_view
 466     advancedView:(vlc_bool_t) b_advanced
 467 {
 468     NSRect          s_vrc;
 469     NSView          *o_view;
 470
 471     s_vrc = [[o_prefs_view contentView] bounds]; s_vrc.size.height -= 4;
 472     o_view = [[VLCFlippedView alloc] initWithFrame: s_vrc];
 473     [o_view setAutoresizingMask: NSViewWidthSizable | NSViewMinYMargin |
 474                                     NSViewMaxYMargin];
 475
 476 /* Create all subviews if it isn't already done because we cannot use */
 477 /* setHiden for MacOS < 10.3*/
 478     if( o_subviews == nil )
 479     {
 480         intf_thread_t   *p_intf = VLCIntf;
 481         vlc_list_t      *p_list;
 482         module_t        *p_parser = NULL;
 483         module_config_t *p_item;
 484
 485         o_subviews = [[NSMutableArray alloc] initWithCapacity:10];
 486         /* Get a pointer to the module */
 487         if( i_object_category == -1 )
 488         {
 489             p_parser = (module_t *) vlc_object_get( p_intf, i_object_id );
 490             if( !p_parser || p_parser->i_object_type != VLC_OBJECT_MODULE )
 491             {
 492                 /* 0OOoo something went really bad */
 493                 return nil;
 494             }
 495             p_item = p_parser->p_config;
 496             int i = 0;
 497
 498             p_item = p_parser->p_config + 1;
 499
 500             do
 501             {
 502                 if( !p_item )
 503                 {
 504                     msg_Err( p_intf, "null item found" );
 505                     break;
 506                 }
 507                 switch(p_item->i_type)
 508                 {
 509                 case CONFIG_SUBCATEGORY:
 510                     break;
 511                 case CONFIG_SECTION:
 512                     break;
 513                 case CONFIG_CATEGORY:
 514                     break;
 515                 case CONFIG_HINT_END:
 516                     break;
 517                 case CONFIG_HINT_USAGE:
 518                     break;
 519                 default:
 520                 {
 521                     VLCConfigControl *o_control = nil;
 522                     o_control = [VLCConfigControl newControl:p_item
 523                                                   withView:o_view];
 524                     if( o_control != nil )
 525                     {
 526                         [o_control setAutoresizingMask: NSViewMaxYMargin |
 527                             NSViewWidthSizable];
 528                         [o_subviews addObject: o_control];
 529                     }
 530                 }
 531                     break;
 532                 }
 533             } while( p_item++->i_type != CONFIG_HINT_END );
 534
 535             vlc_object_release( p_parser );
 536         }
 537         else
 538         {
 539             int i = 0;
 540             int i_index;
 541             p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 542             if( !p_list ) return o_view;
 543
 544             /*
 545             * Find the main module
 546             */
 547             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 548             {
 549                 p_parser = (module_t *)p_list->p_values[i_index].p_object;
 550                 if( !strcmp( p_parser->psz_object_name, "main" ) )
 551                     break;
 552             }
 553             if( p_parser == NULL )
 554             {
 555                 msg_Err( p_intf, "could not find the main module in our "
 556                                     "preferences" );
 557                 return o_view;
 558             }
 559             p_item = (p_parser->p_config + i_object_category);
 560             if( ( p_item->i_type == CONFIG_CATEGORY ) &&
 561               ( ( p_item->i_value == CAT_PLAYLIST )  ||
 562                 ( p_item->i_value == CAT_AUDIO )  ||
 563                 ( p_item->i_value == CAT_VIDEO ) ) )
 564                 p_item++;
 565
 566             do
 567             {
 568                 p_item++;
 569                 if( !p_item )
 570                 {
 571                     msg_Err( p_intf, "null item found" );
 572                     break;
 573                 }
 574                 switch(p_item->i_type)
 575                 {
 576                 case CONFIG_SUBCATEGORY:
 577                     break;
 578                 case CONFIG_SECTION:
 579                     break;
 580                 case CONFIG_CATEGORY:
 581                     break;
 582                 case CONFIG_HINT_END:
 583                     break;
 584                 case CONFIG_HINT_USAGE:
 585                     break;
 586                 default:
 587                 {
 588                     VLCConfigControl *o_control = nil;
 589                     o_control = [VLCConfigControl newControl:p_item
 590                                                   withView:o_view];
 591                     if( o_control != nil )
 592                     {
 593                         [o_control setAutoresizingMask: NSViewMaxYMargin |
 594                                                         NSViewWidthSizable];
 595                         [o_subviews addObject: o_control];
 596                     }
 597                     break;
 598                 }
 599                 }
 600             } while ( ( p_item->i_type != CONFIG_HINT_END ) &&
 601                       ( p_item->i_type != CONFIG_SUBCATEGORY ) );
 602
 603             vlc_list_release( p_list );
 604         }
 605     }
 606
 607     if( o_view != nil )
 608     {
 609         int i_lastItem = 0;
 610         int i_yPos = -2;
 611         int i_max_label = 0;
 612         int i_show_advanced = 0;
 613
 614         NSEnumerator *enumerator = [o_subviews objectEnumerator];
 615         VLCConfigControl *o_widget;
 616         NSRect o_frame;
 617
 618         while( ( o_widget = [enumerator nextObject] ) )
 619             if( ( [o_widget isAdvanced] ) && (! b_advanced) )
 620                 continue;
 621             else if( i_max_label < [o_widget getLabelSize] )
 622                 i_max_label = [o_widget getLabelSize];
 623
 624         enumerator = [o_subviews objectEnumerator];
 625         while( ( o_widget = [enumerator nextObject] ) )
 626         {
 627             int i_widget;
 628             if( ( [o_widget isAdvanced] ) && (! b_advanced) )
 629             {
 630                 i_show_advanced++;
 631                 continue;
 632             }
 633
 634             i_widget = [o_widget getViewType];
 635             i_yPos += [VLCConfigControl calcVerticalMargin:i_widget
 636                 lastItem:i_lastItem];
 637             [o_widget setYPos:i_yPos];
 638             o_frame = [o_widget frame];
 639             o_frame.size.width = [o_view frame].size.width -
 640                                     LEFTMARGIN - RIGHTMARGIN;
 641             [o_widget setFrame:o_frame];
 642             [o_widget alignWithXPosition: i_max_label];
 643             i_yPos += [o_widget frame].size.height;
 644             i_lastItem = i_widget;
 645             [o_view addSubview:o_widget];
 646          }
 647         if( i_show_advanced != 0 )
 648         {
 649             /* We add the advanced notice... */
 650             NSRect s_rc = [o_view frame];
 651             NSTextField *o_label;
 652             s_rc.size.height = 17;
 653             s_rc.origin.x = LEFTMARGIN;
 654             s_rc.origin.y = i_yPos += [VLCConfigControl
 655                                         calcVerticalMargin:CONFIG_ITEM_STRING
 656                                         lastItem:i_lastItem];
 657             o_label = [[[NSTextField alloc] initWithFrame: s_rc] retain];
 658             [o_label setDrawsBackground: NO];
 659             [o_label setBordered: NO];
 660             [o_label setEditable: NO];
 661             [o_label setSelectable: NO];
 662             [o_label setStringValue: _NS("Some options are available but " \
 663                                 "hidden. Check \"Advanced\" to see them.")];
 664             [o_label setFont:[NSFont systemFontOfSize:10]];
 665             [o_label sizeToFit];
 666             [o_view addSubview:o_label];
 667             i_yPos += [o_label frame].size.height;
 668         }
 669         o_frame = [o_view frame];
 670         o_frame.size.height = i_yPos;
 671         [o_view setFrame:o_frame];
 672         [o_prefs_view setDocumentView:o_view];
 673
 674     }
 675     return o_view;
 676 }
 677
 678 - (void)applyChanges
 679 {
 680     unsigned int i;
 681     if( o_subviews != nil )
 682         //Item has been shown
 683         for( i = 0 ; i < [o_subviews count] ; i++ )
 684             [[o_subviews objectAtIndex:i] applyChanges];
 685
 686     if( o_children != IsALeafNode )
 687         for( i = 0 ; i < [o_children count] ; i++ )
 688             [[o_children objectAtIndex:i] applyChanges];
 689 }
 690
 691 - (void)resetView
 692 {
 693     unsigned int i;
 694     if( o_subviews != nil )
 695     {
 696         //Item has been shown
 697         [o_subviews release];
 698         o_subviews = nil;
 699     }
 700
 701     if( o_children != IsALeafNode )
 702         for( i = 0 ; i < [o_children count] ; i++ )
 703             [[o_children objectAtIndex:i] resetView];
 704 }
 705
 706 @end
 707
 708
 709 @implementation VLCFlippedView
 710
 711 - (BOOL)isFlipped
 712 {
 713     return( YES );
 714 }
 715
 716 @end