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    - 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)setTitle: (NSString *) o_title_name
 105 {
 106     [o_title setStringValue: o_title_name];
 107 }
 108
 109 - (void)showPrefs
 110 {
 111     /* load our nib (if not already loaded) */
 112     [NSBundle loadNibNamed:@"Preferences" owner:self];
 113
 114     [o_prefs_window center];
 115     [o_prefs_window makeKeyAndOrderFront:self];
 116 }
 117
 118 - (void)initStrings
 119 {
 120     [o_prefs_window setTitle: _NS("Preferences")];
 121     [o_save_btn setTitle: _NS("Save")];
 122     [o_cancel_btn setTitle: _NS("Cancel")];
 123     [o_reset_btn setTitle: _NS("Reset All")];
 124     [o_advanced_ckb setTitle: _NS("Advanced")];
 125 }
 126
 127 - (IBAction)savePrefs: (id)sender
 128 {
 129     /* TODO: call savePrefs on Root item */
 130     [[VLCTreeItem rootItem] applyChanges];
 131     config_SaveConfigFile( p_intf, NULL );
 132     [o_prefs_window orderOut:self];
 133 }
 134
 135 - (IBAction)closePrefs: (id)sender
 136 {
 137     [o_prefs_window orderOut:self];
 138 }
 139
 140 - (IBAction)resetAll: (id)sender
 141 {
 142     NSBeginInformationalAlertSheet(_NS("Reset Preferences"), _NS("Cancel"),
 143         _NS("Continue"), nil, o_prefs_window, self,
 144         @selector(sheetDidEnd: returnCode: contextInfo:), NULL, nil,
 145         _NS("Beware this will reset the VLC media player preferences.\n"
 146             "Are you sure you want to continue?") );
 147 }
 148
 149 - (void)sheetDidEnd:(NSWindow *)o_sheet returnCode:(int)i_return
 150     contextInfo:(void *)o_context
 151 {
 152     if( i_return == NSAlertAlternateReturn )
 153     {
 154         [o_prefs_view setDocumentView: o_empty_view];
 155         config_ResetAll( p_intf );
 156         [[VLCTreeItem rootItem] resetView];
 157         [[o_tree itemAtRow:[o_tree selectedRow]]
 158             showView:o_prefs_view advancedView:
 159             ( [o_advanced_ckb state] == NSOnState ) ? VLC_TRUE : VLC_FALSE];
 160     }
 161 }
 162
 163 - (IBAction)advancedToggle: (id)sender
 164 {
 165     b_advanced = !b_advanced;
 166     [o_advanced_ckb setState: b_advanced];
 167     /* refresh the view of the current treeitem */
 168     [[o_tree itemAtRow:[o_tree selectedRow]] showView:o_prefs_view advancedView:
 169         ( [o_advanced_ckb state] == NSOnState ) ? VLC_TRUE : VLC_FALSE];
 170 }
 171
 172 - (void)loadConfigTree
 173 {
 174 }
 175
 176 - (void)outlineViewSelectionIsChanging:(NSNotification *)o_notification
 177 {
 178 }
 179
 180 /* update the document view to the view of the selected tree item */
 181 - (void)outlineViewSelectionDidChange:(NSNotification *)o_notification
 182 {
 183     [[o_tree itemAtRow:[o_tree selectedRow]] showView: o_prefs_view
 184         advancedView:( [o_advanced_ckb state] == NSOnState ) ?
 185         VLC_TRUE : VLC_FALSE];
 186 }
 187
 188 @end
 189
 190 @implementation VLCPrefs (NSTableDataSource)
 191
 192 - (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
 193     return (item == nil) ? [[VLCTreeItem rootItem] numberOfChildren] :
 194                             [item numberOfChildren];
 195 }
 196
 197 - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item
 198 {
 199     return (item == nil) ? YES : ( ([item numberOfChildren] != -1) &&
 200                                    ([item numberOfChildren] != 0));
 201 }
 202
 203 - (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item {
 204     return (item == nil) ? [[VLCTreeItem rootItem] childAtIndex:index] :
 205                             (id)[item childAtIndex:index];
 206 }
 207
 208 - (id)outlineView:(NSOutlineView *)outlineView
 209     objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
 210 {
 211     return (item == nil) ? @"" : (id)[item getName];
 212 }
 213
 214 @end
 215
 216 @implementation VLCTreeItem
 217
 218 static VLCTreeItem *o_root_item = nil;
 219
 220 #define IsALeafNode ((id)-1)
 221
 222 - (id)initWithName: (NSString *)o_item_name
 223     withTitle: (NSString *)o_item_title
 224     withHelp: (NSString *)o_item_help
 225     ID: (int)i_id
 226     parent:(VLCTreeItem *)o_parent_item
 227     children:(NSMutableArray *)o_children_array
 228     whithCategory: (int) i_category
 229 {
 230     self = [super init];
 231
 232     if( self != nil )
 233     {
 234         o_name = [o_item_name copy];
 235         o_title= [o_item_title copy];
 236         o_help= [o_item_help copy];
 237         i_object_id = i_id;
 238         o_parent = o_parent_item;
 239         o_children = o_children_array;
 240         i_object_category = i_category;
 241         o_subviews = nil;
 242     }
 243     return( self );
 244 }
 245
 246 + (VLCTreeItem *)rootItem
 247 {
 248    if (o_root_item == nil)
 249         o_root_item = [[VLCTreeItem alloc] initWithName:@"main" withTitle:@"main" withHelp:@"" ID:0
 250             parent:nil children:[[NSMutableArray alloc] initWithCapacity:10]
 251             whithCategory: -1];
 252    return o_root_item;
 253 }
 254
 255 - (void)dealloc
 256 {
 257     if (o_children != IsALeafNode) [o_children release];
 258     [o_name release];
 259     [o_title release];
 260     [o_help release];
 261     [super dealloc];
 262 }
 263
 264 /* Creates and returns the array of children
 265  * Loads children incrementally */
 266 - (NSArray *)children
 267 {
 268     if( o_children == IsALeafNode )
 269         return o_children;
 270     if( [ o_children count] == 0 )
 271     {
 272         intf_thread_t   *p_intf = VLCIntf;
 273         vlc_list_t      *p_list;
 274         module_t        *p_module = NULL;
 275         module_t        *p_parser;
 276         module_config_t *p_item,
 277                         *p_end;
 278         int             i_index;
 279
 280         /* List the modules */
 281         p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 282         if( !p_list ) return nil;
 283
 284         /* get parser */
 285         p_parser = (module_t *)p_list->p_values[i_index].p_object;
 286         p_end = p_parser->p_config + p_parser->confsize;
 287
 288         if( [[self getName] isEqualToString: @"main"] )
 289         {
 290             /*
 291             * Find the main module
 292             */
 293             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 294             {
 295                 p_module = (module_t *)p_list->p_values[i_index].p_object;
 296                 if( !strcmp( p_module->psz_object_name, "main" ) )
 297                     break;
 298             }
 299             if( p_module == NULL )
 300             {
 301                 msg_Err( p_intf,
 302                     "could not load the preferences" );
 303                 return nil;
 304             }
 305             if( i_index < p_list->i_count )
 306             {
 307                 /* We found the main module */
 308                 /* Enumerate config categories and store a reference so we can
 309                  * generate their config panel them when it is asked by the user. */
 310                 VLCTreeItem *p_last_category = NULL;
 311                 p_item = p_module->p_config;
 312                 o_children = [[NSMutableArray alloc] initWithCapacity:10];
 313                 if( p_item ) do
 314                 {
 315                     NSString *o_child_name;
 316                     NSString *o_child_title;
 317                     NSString *o_child_help;
 318                     switch( p_item->i_type )
 319                     {
 320                     case CONFIG_CATEGORY:
 321                                     if( p_item->value.i == -1 ) break;
 322
 323                         o_child_name = [[VLCMain sharedInstance]
 324                             localizedString: config_CategoryNameGet( p_item->value.i )];
 325                         o_child_title = o_child_name;
 326                         o_child_help = [[VLCMain sharedInstance]
 327                             localizedString: config_CategoryHelpGet( p_item->value.i )];
 328                         p_last_category = [VLCTreeItem alloc];
 329                         [o_children addObject:[p_last_category
 330                             initWithName: o_child_name
 331                             withTitle: o_child_title
 332                             withHelp: o_child_help
 333                             ID: p_item->value.i
 334                             parent:self
 335                             children:[[NSMutableArray alloc]
 336                                 initWithCapacity:10]
 337                             whithCategory: p_item - p_module->p_config]];
 338                         break;
 339                     case CONFIG_SUBCATEGORY:
 340                                     if( p_item->value.i == -1 ) break;
 341
 342                         if( p_item->value.i != SUBCAT_PLAYLIST_GENERAL &&
 343                             p_item->value.i != SUBCAT_VIDEO_GENERAL &&
 344                             p_item->value.i != SUBCAT_INPUT_GENERAL &&
 345                             p_item->value.i != SUBCAT_INTERFACE_GENERAL &&
 346                             p_item->value.i != SUBCAT_SOUT_GENERAL &&
 347                             p_item->value.i != SUBCAT_ADVANCED_MISC &&
 348                             p_item->value.i != SUBCAT_AUDIO_GENERAL )
 349                         {
 350                             o_child_name = [[VLCMain sharedInstance]
 351                                 localizedString: config_CategoryNameGet( p_item->value.i ) ];
 352                             o_child_title = o_child_name;
 353                             o_child_help = [[VLCMain sharedInstance]
 354                                 localizedString: config_CategoryHelpGet( p_item->value.i ) ];
 355
 356                             [p_last_category->o_children
 357                                 addObject:[[VLCTreeItem alloc]
 358                                 initWithName: o_child_name
 359                                 withTitle: o_child_title
 360                                 withHelp: o_child_help
 361                                 ID: p_item->value.i
 362                                 parent:p_last_category
 363                                 children:[[NSMutableArray alloc]
 364                                     initWithCapacity:10]
 365                                 whithCategory: p_item - p_module->p_config]];
 366                         }
 367
 368                         break;
 369                     default:
 370                         break;
 371                     }
 372                 } while( p_item < p_end && p_item++ );
 373             }
 374
 375             /* Build a tree of the plugins */
 376             /* Add the capabilities */
 377             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 378             {
 379                 p_module = (module_t *)p_list->p_values[i_index].p_object;
 380
 381                 /* Exclude the main module */
 382                 if( !strcmp( p_module->psz_object_name, "main" ) )
 383                     continue;
 384
 385                 /* Exclude empty plugins (submodules don't have config */
 386                 /* options, they are stored in the parent module) */
 387                 if( p_module->b_submodule )
 388                     continue;
 389                 else
 390                     p_item = p_module->p_config;
 391
 392                 if( !p_item ) continue;
 393                 int i_category = -1;
 394                 int i_subcategory = -1;
 395                 int i_options = 0;
 396                 do
 397                 {
 398                     if( p_item->i_type == CONFIG_CATEGORY )
 399                         i_category = p_item->value.i;
 400                     else if( p_item->i_type == CONFIG_SUBCATEGORY )
 401                         i_subcategory = p_item->value.i;
 402
 403                     if( p_item->i_type & CONFIG_ITEM )
 404                         i_options ++;
 405                     if( i_options > 0 && i_category >= 0 && i_subcategory >= 0 )
 406                         break;
 407                 } while( p_item < p_end && p_item++ );
 408                 if( !i_options ) continue;
 409
 410                 /* Find the right category item */
 411
 412                 long cookie;
 413                 vlc_bool_t b_found = VLC_FALSE;
 414                 unsigned int i;
 415                 VLCTreeItem* p_category_item, * p_subcategory_item;
 416                 for (i = 0 ; i < [o_children count] ; i++)
 417                 {
 418                     p_category_item = [o_children objectAtIndex: i];
 419                     if( p_category_item->i_object_id == i_category )
 420                     {
 421                         b_found = VLC_TRUE;
 422                         break;
 423                     }
 424                 }
 425                 if( !b_found ) continue;
 426
 427                 /* Find subcategory item */
 428                 b_found = VLC_FALSE;
 429                 cookie = -1;
 430                 for (i = 0 ; i < [p_category_item->o_children count] ; i++)
 431                 {
 432                     p_subcategory_item = [p_category_item->o_children
 433                                             objectAtIndex: i];
 434                     if( p_subcategory_item->i_object_id == i_subcategory )
 435                     {
 436                         b_found = VLC_TRUE;
 437                         break;
 438                     }
 439                 }
 440                 if( !b_found )
 441                     p_subcategory_item = p_category_item;
 442
 443                 [p_subcategory_item->o_children addObject:[[VLCTreeItem alloc]
 444                     initWithName:[[VLCMain sharedInstance]
 445                         localizedString: (char *)p_module->psz_shortname ?
 446                         (char *)p_module->psz_shortname : (char *)p_module->psz_object_name ]
 447                     withTitle:[[VLCMain sharedInstance]
 448                         localizedString: (char *)p_module->psz_longname ?
 449                         (char *)p_module->psz_longname : (char *)p_module->psz_object_name ]
 450                     withHelp: @""
 451                     ID: p_module->i_object_id
 452                     parent:p_subcategory_item
 453                     children:IsALeafNode
 454                     whithCategory: -1]];
 455                 }
 456         }
 457         vlc_list_release( p_list );
 458     }
 459     return o_children;
 460 }
 461
 462 - (int)getObjectID
 463 {
 464     return i_object_id;
 465 }
 466
 467 - (NSString *)getName
 468 {
 469     return o_name;
 470 }
 471
 472 - (NSString *)getTitle
 473 {
 474     return o_title;
 475 }
 476
 477 - (NSString *)getHelp
 478 {
 479     return o_help;
 480 }
 481
 482 - (VLCTreeItem *)childAtIndex:(int)i_index
 483 {
 484     return [[self children] objectAtIndex:i_index];
 485 }
 486
 487 - (int)numberOfChildren {
 488     id i_tmp = [self children];
 489     return (i_tmp == IsALeafNode) ? (-1) : (int)[i_tmp count];
 490 }
 491
 492 - (BOOL)hasPrefs:(NSString *)o_module_name
 493 {
 494     intf_thread_t *p_intf = VLCIntf;
 495     module_t *p_parser;
 496     vlc_list_t *p_list;
 497     char *psz_module_name;
 498     int i_index;
 499
 500     psz_module_name = (char *)[o_module_name UTF8String];
 501
 502     /* look for module */
 503     p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 504
 505     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 506     {
 507         p_parser = (module_t *)p_list->p_values[i_index].p_object ;
 508
 509         if( !strcmp( p_parser->psz_object_name, psz_module_name ) )
 510         {
 511             BOOL b_has_prefs = p_parser->i_config_items != 0;
 512             vlc_list_release( p_list );
 513             return( b_has_prefs );
 514         }
 515     }
 516
 517     vlc_list_release( p_list );
 518
 519     return( NO );
 520 }
 521
 522 - (NSView *)showView:(NSScrollView *)o_prefs_view
 523     advancedView:(vlc_bool_t) b_advanced
 524 {
 525     NSRect          s_vrc;
 526     NSView          *o_view;
 527
 528     [[VLCPrefs sharedInstance] setTitle: [self getTitle]];
 529     /* NSLog( [self getHelp] ); */
 530     s_vrc = [[o_prefs_view contentView] bounds]; s_vrc.size.height -= 4;
 531     o_view = [[VLCFlippedView alloc] initWithFrame: s_vrc];
 532     [o_view setAutoresizingMask: NSViewWidthSizable | NSViewMinYMargin |
 533                                     NSViewMaxYMargin];
 534
 535 /* Create all subviews if it isn't already done because we cannot use */
 536 /* setHiden for MacOS < 10.3*/
 537     if( o_subviews == nil )
 538     {
 539         intf_thread_t   *p_intf = VLCIntf;
 540         vlc_list_t      *p_list;
 541         module_t        *p_parser = NULL;
 542         module_config_t *p_item,
 543                         *p_end = p_parser->p_config + p_parser->confsize;
 544
 545         o_subviews = [[NSMutableArray alloc] initWithCapacity:10];
 546         /* Get a pointer to the module */
 547         if( i_object_category == -1 )
 548         {
 549             p_parser = (module_t *) vlc_object_get( p_intf, i_object_id );
 550             if( !p_parser || p_parser->i_object_type != VLC_OBJECT_MODULE )
 551             {
 552                 /* 0OOoo something went really bad */
 553                 return nil;
 554             }
 555             p_item = p_parser->p_config;
 556
 557             p_item = p_parser->p_config + 1;
 558
 559             do
 560             {
 561                 if( !p_item )
 562                 {
 563                     msg_Err( p_intf, "invalid preference item found" );
 564                     break;
 565                 }
 566                 if( p_item < p_end )
 567                     break;
 568                 switch(p_item->i_type)
 569                 {
 570                 case CONFIG_SUBCATEGORY:
 571                     break;
 572                 case CONFIG_CATEGORY:
 573                     break;
 574                 case CONFIG_SECTION:
 575                     break;
 576                 case CONFIG_HINT_USAGE:
 577                     break;
 578                 default:
 579                 {
 580                     VLCConfigControl *o_control = nil;
 581                     o_control = [VLCConfigControl newControl:p_item
 582                                                   withView:o_view];
 583                     if( o_control != nil )
 584                     {
 585                         [o_control setAutoresizingMask: NSViewMaxYMargin |
 586                             NSViewWidthSizable];
 587                         [o_subviews addObject: o_control];
 588                     }
 589                 }
 590                     break;
 591                 }
 592             } while( p_item < p_end && p_item++ );
 593
 594             vlc_object_release( p_parser );
 595         }
 596         else
 597         {
 598             int i_index;
 599             p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE, FIND_ANYWHERE );
 600             if( !p_list ) return o_view;
 601
 602             /*
 603             * Find the main module
 604             */
 605             for( i_index = 0; i_index < p_list->i_count; i_index++ )
 606             {
 607                 p_parser = (module_t *)p_list->p_values[i_index].p_object;
 608                 if( !strcmp( p_parser->psz_object_name, "main" ) )
 609                     break;
 610             }
 611             if( p_parser == NULL )
 612             {
 613                 msg_Err( p_intf, "could not load preferences" );
 614                 return o_view;
 615             }
 616             p_item = (p_parser->p_config + i_object_category);
 617             if( ( p_item->i_type == CONFIG_CATEGORY ) &&
 618               ( ( p_item->value.i == CAT_PLAYLIST )  ||
 619                 ( p_item->value.i == CAT_AUDIO )  ||
 620                 ( p_item->value.i == CAT_VIDEO ) ||
 621                 ( p_item->value.i == CAT_INTERFACE ) ||
 622                 ( p_item->value.i == CAT_INPUT ) ||
 623                 ( p_item->value.i == CAT_SOUT ) ) )
 624                 p_item++;
 625
 626             do
 627             {
 628                 p_item++;
 629                 if( !p_item )
 630                 {
 631                     msg_Err( p_intf, "invalid preference item found" );
 632                     break;
 633                 }
 634                 if( p_item < p_end )
 635                     break;
 636                 switch( p_item->i_type )
 637                 {
 638                 case CONFIG_SUBCATEGORY:
 639                     break;
 640                 case CONFIG_CATEGORY:
 641                     break;
 642                 case CONFIG_SECTION:
 643                     break;
 644                 case CONFIG_HINT_USAGE:
 645                     break;
 646                 default:
 647                 {
 648                     VLCConfigControl *o_control = nil;
 649                     if( p_item->b_internal == VLC_TRUE )
 650                     {
 651                         break;
 652                     }
 653                     o_control = [VLCConfigControl newControl:p_item
 654                                                   withView:o_view];
 655                     if( o_control != nil )
 656                     {
 657                         [o_control setAutoresizingMask: NSViewMaxYMargin |
 658                                                         NSViewWidthSizable];
 659                         [o_subviews addObject: o_control];
 660                     }
 661                     break;
 662                 }
 663                 }
 664             } while ( ( p_item < p_end ) &&
 665                       ( p_item->i_type != CONFIG_SUBCATEGORY ) );
 666
 667             vlc_list_release( p_list );
 668         }
 669     }
 670
 671     if( o_view != nil )
 672     {
 673         int i_lastItem = 0;
 674         int i_yPos = -2;
 675         int i_max_label = 0;
 676         int i_show_advanced = 0;
 677
 678         NSEnumerator *enumerator = [o_subviews objectEnumerator];
 679         VLCConfigControl *o_widget;
 680         NSRect o_frame;
 681
 682         while( ( o_widget = [enumerator nextObject] ) )
 683             if( ( [o_widget isAdvanced] ) && (! b_advanced) )
 684                 continue;
 685             else if( i_max_label < [o_widget getLabelSize] )
 686                 i_max_label = [o_widget getLabelSize];
 687
 688         enumerator = [o_subviews objectEnumerator];
 689         while( ( o_widget = [enumerator nextObject] ) )
 690         {
 691             int i_widget;
 692             if( ( [o_widget isAdvanced] ) && (! b_advanced) )
 693             {
 694                 i_show_advanced++;
 695                 continue;
 696             }
 697
 698             i_widget = [o_widget getViewType];
 699             i_yPos += [VLCConfigControl calcVerticalMargin:i_widget
 700                 lastItem:i_lastItem];
 701             [o_widget setYPos:i_yPos];
 702             o_frame = [o_widget frame];
 703             o_frame.size.width = [o_view frame].size.width -
 704                                     LEFTMARGIN - RIGHTMARGIN;
 705             [o_widget setFrame:o_frame];
 706             [o_widget alignWithXPosition: i_max_label];
 707             i_yPos += [o_widget frame].size.height;
 708             i_lastItem = i_widget;
 709             [o_view addSubview:o_widget];
 710          }
 711         if( i_show_advanced != 0 )
 712         {
 713             /* We add the advanced notice... */
 714             NSRect s_rc = [o_view frame];
 715             NSTextField *o_label;
 716             s_rc.size.height = 17;
 717             s_rc.origin.x = LEFTMARGIN;
 718             s_rc.origin.y = i_yPos += [VLCConfigControl
 719                                         calcVerticalMargin:CONFIG_ITEM_STRING
 720                                         lastItem:i_lastItem];
 721             o_label = [[[NSTextField alloc] initWithFrame: s_rc] retain];
 722             [o_label setDrawsBackground: NO];
 723             [o_label setBordered: NO];
 724             [o_label setEditable: NO];
 725             [o_label setSelectable: NO];
 726             [o_label setStringValue: _NS("Some options are hidden. " \
 727                                 "Check \"Advanced\" to display them.")];
 728             [o_label setFont:[NSFont systemFontOfSize:10]];
 729             [o_label sizeToFit];
 730             [o_view addSubview:o_label];
 731             i_yPos += [o_label frame].size.height;
 732         }
 733         o_frame = [o_view frame];
 734         o_frame.size.height = i_yPos;
 735         [o_view setFrame:o_frame];
 736         [o_prefs_view setDocumentView:o_view];
 737
 738     }
 739     return o_view;
 740 }
 741
 742 - (void)applyChanges
 743 {
 744     unsigned int i;
 745     if( o_subviews != nil )
 746         //Item has been shown
 747         for( i = 0 ; i < [o_subviews count] ; i++ )
 748             [[o_subviews objectAtIndex:i] applyChanges];
 749
 750     if( o_children != IsALeafNode )
 751         for( i = 0 ; i < [o_children count] ; i++ )
 752             [[o_children objectAtIndex:i] applyChanges];
 753 }
 754
 755 - (void)resetView
 756 {
 757     unsigned int i;
 758     if( o_subviews != nil )
 759     {
 760         //Item has been shown
 761         [o_subviews release];
 762         o_subviews = nil;
 763     }
 764
 765     if( o_children != IsALeafNode )
 766         for( i = 0 ; i < [o_children count] ; i++ )
 767             [[o_children objectAtIndex:i] resetView];
 768 }
 769
 770 @end
 771
 772
 773 @implementation VLCFlippedView
 774
 775 - (BOOL)isFlipped
 776 {
 777     return( YES );
 778 }
 779
 780 @end