git.sesse.net Git - vlc/blob - modules/gui/beos/ListViews.cpp

   1 /*****************************************************************************
   2  * ListViews.h: BeOS interface list view class implementation
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000, 2001 VideoLAN
   5  * $Id: ListViews.cpp,v 1.3 2003/02/01 12:01:11 stippi Exp $
   6  *
   7  * Authors: Stephan Aßmus <stippi@yellowbites.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdio.h>
  25 #include <malloc.h>
  26
  27 #include <Bitmap.h>
  28 #include <String.h>
  29
  30 /* VLC headers */
  31 #include <vlc/vlc.h>
  32 #include <vlc/intf.h>
  33
  34 #include "VlcWrapper.h"
  35 #include "InterfaceWindow.h"
  36 #include "ListViews.h"
  37 #include "MsgVals.h"
  38
  39 #define MAX_DRAG_HEIGHT         200.0
  40 #define ALPHA                           170
  41 #define TEXT_OFFSET                     20.0
  42
  43 /*****************************************************************************
  44  * PlaylistItem class
  45  *****************************************************************************/
  46 PlaylistItem::PlaylistItem( const char *name )
  47         : BStringItem( name )
  48 {
  49 }
  50
  51 PlaylistItem::~PlaylistItem()
  52 {
  53 }
  54
  55 /*****************************************************************************
  56  * PlaylistItem::DrawItem
  57  *****************************************************************************/
  58 void
  59 PlaylistItem::Draw( BView *owner, BRect frame, bool tintedLine,
  60                                         bool active, bool playing )
  61 {
  62         rgb_color color = (rgb_color){ 255, 255, 255, 255 };
  63         if ( tintedLine )
  64                 color = tint_color( color, 1.04 );
  65         // background
  66         if ( IsSelected() )
  67                 color = tint_color( color, B_DARKEN_2_TINT );
  68         owner->SetLowColor( color );
  69         owner->FillRect( frame, B_SOLID_LOW );
  70         // label
  71         owner->SetHighColor( 0, 0, 0, 255 );
  72         font_height fh;
  73         owner->GetFontHeight( &fh );
  74         BString truncatedString( Text() );
  75         owner->TruncateString( &truncatedString, B_TRUNCATE_MIDDLE,
  76                                                    frame.Width() - TEXT_OFFSET - 4.0 );
  77         owner->DrawString( truncatedString.String(),
  78                                            BPoint( frame.left + TEXT_OFFSET,
  79                                                            frame.top + fh.ascent + 1.0 ) );
  80         // playmark
  81         if ( active )
  82         {
  83                 rgb_color black = (rgb_color){ 0, 0, 0, 255 };
  84                 rgb_color green = (rgb_color){ 0, 255, 0, 255 };
  85                 BRect r( 0.0, 0.0, 10.0, 10.0 );
  86                 r.OffsetTo( frame.left + 4.0,
  87                                         ceilf( ( frame.top + frame.bottom ) / 2.0 ) - 5.0 );
  88                 if ( !playing )
  89                         green = tint_color( color, B_DARKEN_1_TINT );
  90                 rgb_color lightGreen = tint_color( green, B_LIGHTEN_2_TINT );
  91                 rgb_color darkGreen = tint_color( green, B_DARKEN_2_TINT );
  92                 BPoint arrow[3];
  93                 arrow[0] = r.LeftTop();
  94                 arrow[1] = r.LeftBottom();
  95                 arrow[2].x = r.right;
  96                 arrow[2].y = ( r.top + r.bottom ) / 2.0;
  97                 owner->BeginLineArray( 6 );
  98                         // black outline
  99                         owner->AddLine( arrow[0], arrow[1], black );
 100                         owner->AddLine( BPoint( arrow[1].x + 1.0, arrow[1].y - 1.0 ),
 101                                                         arrow[2], black );
 102                         owner->AddLine( arrow[0], arrow[2], black );
 103                         // inset arrow
 104                         arrow[0].x += 1.0;
 105                         arrow[0].y += 2.0;
 106                         arrow[1].x += 1.0;
 107                         arrow[1].y -= 2.0;
 108                         arrow[2].x -= 2.0;
 109                         // highlights and shadow
 110                         owner->AddLine( arrow[1], arrow[2], darkGreen );
 111                         owner->AddLine( arrow[0], arrow[2], lightGreen );
 112                         owner->AddLine( arrow[0], arrow[1], lightGreen );
 113                 owner->EndLineArray();
 114                 // fill green
 115                 arrow[0].x += 1.0;
 116                 arrow[0].y += 1.0;
 117                 arrow[1].x += 1.0;
 118                 arrow[1].y -= 1.0;
 119                 arrow[2].x -= 2.0;
 120                 owner->SetHighColor( green );
 121                 owner->FillPolygon( arrow, 3 );
 122         }
 123 }
 124
 125 /*****************************************************************************
 126  * DragSortableListView class
 127  *****************************************************************************/
 128 DragSortableListView::DragSortableListView( BRect frame, const char* name,
 129                                                                                         list_view_type type, uint32 resizingMode,
 130                                                                                         uint32 flags )
 131         : BListView( frame, name, type, resizingMode, flags ),
 132           fDropRect( 0.0, 0.0, -1.0, -1.0 ),
 133           fDropIndex( -1 )
 134 {
 135         SetViewColor( B_TRANSPARENT_32_BIT );
 136 }
 137
 138 DragSortableListView::~DragSortableListView()
 139 {
 140 }
 141
 142 /*****************************************************************************
 143  * DragSortableListView::Draw
 144  *****************************************************************************/
 145 void
 146 DragSortableListView::Draw( BRect updateRect )
 147 {
 148         int32 firstIndex = IndexOf( updateRect.LeftTop() );
 149         int32 lastIndex = IndexOf( updateRect.RightBottom() );
 150         if ( firstIndex >= 0 )
 151         {
 152                 if ( lastIndex < firstIndex )
 153                         lastIndex = CountItems() - 1;
 154                 // update rect contains items
 155                 BRect r( updateRect );
 156                 for ( int32 i = firstIndex; i <= lastIndex; i++)
 157                 {
 158                         r = ItemFrame( i );
 159                         DrawListItem( this, i, r );
 160                 }
 161                 updateRect.top = r.bottom + 1.0;
 162                 if ( updateRect.IsValid() )
 163                 {
 164                         SetLowColor( 255, 255, 255, 255 );
 165                         FillRect( updateRect, B_SOLID_LOW );
 166                 }
 167         }
 168         else
 169         {
 170                 SetLowColor( 255, 255, 255, 255 );
 171                 FillRect( updateRect, B_SOLID_LOW );
 172         }
 173         // drop anticipation indication
 174         if ( fDropRect.IsValid() )
 175         {
 176                 SetHighColor( 255, 0, 0, 255 );
 177                 StrokeRect( fDropRect );
 178         }
 179 }
 180
 181 /*****************************************************************************
 182  * DragSortableListView::InitiateDrag
 183  *****************************************************************************/
 184 bool
 185 DragSortableListView::InitiateDrag( BPoint point, int32 index, bool )
 186 {
 187         bool success = false;
 188         BListItem* item = ItemAt( CurrentSelection( 0 ) );
 189         if ( !item )
 190         {
 191                 // workarround a timing problem
 192                 Select( index );
 193                 item = ItemAt( index );
 194         }
 195         if ( item )
 196         {
 197                 // create drag message
 198                 BMessage msg( B_SIMPLE_DATA );
 199                 MakeDragMessage( &msg );
 200                 // figure out drag rect
 201                 float width = Bounds().Width();
 202                 BRect dragRect(0.0, 0.0, width, -1.0);
 203                 // figure out, how many items fit into our bitmap
 204                 int32 numItems;
 205                 bool fade = false;
 206                 for (numItems = 0; BListItem* item = ItemAt( CurrentSelection( numItems ) ); numItems++) {
 207                         dragRect.bottom += ceilf( item->Height() ) + 1.0;
 208                         if ( dragRect.Height() > MAX_DRAG_HEIGHT ) {
 209                                 fade = true;
 210                                 dragRect.bottom = MAX_DRAG_HEIGHT;
 211                                 numItems++;
 212                                 break;
 213                         }
 214                 }
 215                 BBitmap* dragBitmap = new BBitmap( dragRect, B_RGB32, true );
 216                 if ( dragBitmap && dragBitmap->IsValid() ) {
 217                         if ( BView *v = new BView( dragBitmap->Bounds(), "helper", B_FOLLOW_NONE, B_WILL_DRAW ) ) {
 218                                 dragBitmap->AddChild( v );
 219                                 dragBitmap->Lock();
 220                                 BRect itemBounds( dragRect) ;
 221                                 itemBounds.bottom = 0.0;
 222                                 // let all selected items, that fit into our drag_bitmap, draw
 223                                 for ( int32 i = 0; i < numItems; i++ ) {
 224                                         int32 index = CurrentSelection( i );
 225                                         BListItem* item = ItemAt( index );
 226                                         itemBounds.bottom = itemBounds.top + ceilf( item->Height() );
 227                                         if ( itemBounds.bottom > dragRect.bottom )
 228                                                 itemBounds.bottom = dragRect.bottom;
 229                                         DrawListItem( v, index, itemBounds );
 230                                         itemBounds.top = itemBounds.bottom + 1.0;
 231                                 }
 232                                 // make a black frame arround the edge
 233                                 v->SetHighColor( 0, 0, 0, 255 );
 234                                 v->StrokeRect( v->Bounds() );
 235                                 v->Sync();
 236
 237                                 uint8 *bits = (uint8 *)dragBitmap->Bits();
 238                                 int32 height = (int32)dragBitmap->Bounds().Height() + 1;
 239                                 int32 width = (int32)dragBitmap->Bounds().Width() + 1;
 240                                 int32 bpr = dragBitmap->BytesPerRow();
 241
 242                                 if (fade) {
 243                                         for ( int32 y = 0; y < height - ALPHA / 2; y++, bits += bpr ) {
 244                                                 uint8 *line = bits + 3;
 245                                                 for (uint8 *end = line + 4 * width; line < end; line += 4)
 246                                                         *line = ALPHA;
 247                                         }
 248                                         for ( int32 y = height - ALPHA / 2; y < height; y++, bits += bpr ) {
 249                                                 uint8 *line = bits + 3;
 250                                                 for (uint8 *end = line + 4 * width; line < end; line += 4)
 251                                                         *line = (height - y) << 1;
 252                                         }
 253                                 } else {
 254                                         for ( int32 y = 0; y < height; y++, bits += bpr ) {
 255                                                 uint8 *line = bits + 3;
 256                                                 for (uint8 *end = line + 4 * width; line < end; line += 4)
 257                                                         *line = ALPHA;
 258                                         }
 259                                 }
 260                                 dragBitmap->Unlock();
 261                                 success = true;
 262                         }
 263                 }
 264                 if (success)
 265                         DragMessage( &msg, dragBitmap, B_OP_ALPHA, BPoint( 0.0, 0.0 ) );
 266                 else {
 267                         delete dragBitmap;
 268                         DragMessage( &msg, dragRect.OffsetToCopy( point ), this );
 269                 }
 270         }
 271         return success;
 272 }
 273
 274 /*****************************************************************************
 275  * DragSortableListView::WindowActivated
 276  *****************************************************************************/
 277 void
 278 DragSortableListView::WindowActivated( bool active )
 279 {
 280         // workarround for buggy focus indication of BScrollView
 281         if ( BView* view = Parent() )
 282                 view->Invalidate();
 283 }
 284
 285 /*****************************************************************************
 286  * DragSortableListView::MessageReceived
 287  *****************************************************************************/
 288 void
 289 DragSortableListView::MessageReceived(BMessage* message)
 290 {
 291         switch ( message->what )
 292         {
 293                 case B_MODIFIERS_CHANGED:
 294                         ModifiersChanged();
 295                         break;
 296                 case B_SIMPLE_DATA:
 297                 {
 298                         DragSortableListView *list = NULL;
 299                         if ( message->FindPointer( "list", (void **)&list ) == B_OK
 300                                  && list == this )
 301                         {
 302                                 int32 count = CountItems();
 303                                 if ( fDropIndex < 0 || fDropIndex > count )
 304                                         fDropIndex = count;
 305                                 BList items;
 306                                 int32 index;
 307                                 for ( int32 i = 0; message->FindInt32( "index", i, &index ) == B_OK; i++ )
 308                                         if ( BListItem* item = ItemAt(index) )
 309                                                 items.AddItem( (void*)item );
 310                                 if ( items.CountItems() > 0 )
 311                                 {
 312                                         if ( modifiers() & B_SHIFT_KEY )
 313                                                 CopyItems( items, fDropIndex );
 314                                         else
 315                                                 MoveItems( items, fDropIndex );
 316                                 }
 317                                 fDropIndex = -1;
 318                         }
 319                         break;
 320                 }
 321                 default:
 322                         BListView::MessageReceived( message );
 323                         break;
 324         }
 325 }
 326
 327 /*****************************************************************************
 328  * DragSortableListView::MouseMoved
 329  *****************************************************************************/
 330 void
 331 DragSortableListView::MouseMoved(BPoint where, uint32 transit, const BMessage *msg)
 332 {
 333         if ( msg && msg->what == B_SIMPLE_DATA )
 334         {
 335                 bool replaceAll = !msg->HasPointer("list") && !(modifiers() & B_SHIFT_KEY);
 336                 switch ( transit )
 337                 {
 338                         case B_ENTERED_VIEW:
 339                         case B_INSIDE_VIEW:
 340                         {
 341                                 if ( replaceAll )
 342                                 {
 343                                         BRect r( Bounds() );
 344                                         r.bottom--;     // compensate for scrollbar offset
 345                                         _SetDropAnticipationRect( r );
 346                                         fDropIndex = -1;
 347                                 }
 348                                 else
 349                                 {
 350                                         // offset where by half of item height
 351                                         BRect r( ItemFrame( 0 ) );
 352                                         where.y += r.Height() / 2.0;
 353
 354                                         int32 index = IndexOf( where );
 355                                         if ( index < 0 )
 356                                                 index = CountItems();
 357                                         _SetDropIndex( index );
 358                                 }
 359                                 break;
 360                         }
 361                         case B_EXITED_VIEW:
 362                         case B_OUTSIDE_VIEW:
 363                                 _RemoveDropAnticipationRect();
 364                                 break;
 365                 }
 366                 // remember drag message
 367                 // this is needed to react on modifier changes
 368                 fDragMessageCopy = *msg;
 369         }
 370         else
 371         {
 372                 _RemoveDropAnticipationRect();
 373                 BListView::MouseMoved(where, transit, msg);
 374         }
 375 }
 376
 377 /*****************************************************************************
 378  * DragSortableListView::MouseUp
 379  *****************************************************************************/
 380 void
 381 DragSortableListView::MouseUp( BPoint where )
 382 {
 383         // remove drop mark
 384         _SetDropAnticipationRect( BRect( 0.0, 0.0, -1.0, -1.0 ) );
 385         BListView::MouseUp( where );
 386 }
 387
 388 /*****************************************************************************
 389  * DragSortableListView::DrawItem
 390  *****************************************************************************/
 391 void
 392 DragSortableListView::DrawItem( BListItem *item, BRect itemFrame, bool complete )
 393 {
 394         DrawListItem( this, IndexOf( item ), itemFrame );
 395 }
 396
 397 /*****************************************************************************
 398  * DragSortableListView::ModifiersChaned
 399  *****************************************************************************/
 400 void
 401 DragSortableListView::ModifiersChanged()
 402 {
 403         BPoint where;
 404         uint32 buttons;
 405         GetMouse( &where, &buttons, false );
 406         uint32 transit = Bounds().Contains( where ) ? B_INSIDE_VIEW : B_OUTSIDE_VIEW;
 407         MouseMoved( where, transit, &fDragMessageCopy );
 408 }
 409
 410 /*****************************************************************************
 411  * DragSortableListView::MoveItems
 412  *****************************************************************************/
 413 void
 414 DragSortableListView::MoveItems( BList& items, int32 index )
 415 {
 416         DeselectAll();
 417         // we remove the items while we look at them, the insertion index is decreased
 418         // when the items index is lower, so that we insert at the right spot after
 419         // removal
 420         BList removedItems;
 421         int32 count = items.CountItems();
 422         for ( int32 i = 0; i < count; i++ )
 423         {
 424                 BListItem* item = (BListItem*)items.ItemAt( i );
 425                 int32 removeIndex = IndexOf( item );
 426                 if ( RemoveItem( item ) && removedItems.AddItem( (void*)item ) )
 427                 {
 428                         if ( removeIndex < index )
 429                                 index--;
 430                 }
 431                 // else ??? -> blow up
 432         }
 433         for ( int32 i = 0; BListItem* item = (BListItem*)removedItems.ItemAt( i ); i++ )
 434         {
 435                 if ( AddItem( item, index ) )
 436                 {
 437                         // after we're done, the newly inserted items will be selected
 438                         Select( index, true );
 439                         // next items will be inserted after this one
 440                         index++;
 441                 }
 442                 else
 443                         delete item;
 444         }
 445 }
 446
 447 /*****************************************************************************
 448  * DragSortableListView::CopyItems
 449  *****************************************************************************/
 450 void
 451 DragSortableListView::CopyItems( BList& items, int32 index )
 452 {
 453         DeselectAll();
 454         // by inserting the items after we copied all items first, we avoid
 455         // cloning an item we already inserted and messing everything up
 456         // in other words, don't touch the list before we know which items
 457         // need to be cloned
 458         BList clonedItems;
 459         int32 count = items.CountItems();
 460         for ( int32 i = 0; i < count; i++ )
 461         {
 462                 BListItem* item = CloneItem( IndexOf( (BListItem*)items.ItemAt( i ) ) );
 463                 if ( item && !clonedItems.AddItem( (void*)item ) )
 464                         delete item;
 465         }
 466         for ( int32 i = 0; BListItem* item = (BListItem*)clonedItems.ItemAt( i ); i++ )
 467         {
 468                 if ( AddItem( item, index ) )
 469                 {
 470                         // after we're done, the newly inserted items will be selected
 471                         Select( index, true );
 472                         // next items will be inserted after this one
 473                         index++;
 474                 }
 475                 else
 476                         delete item;
 477         }
 478 }
 479
 480 /*****************************************************************************
 481  * DragSortableListView::RemoveItemList
 482  *****************************************************************************/
 483 void
 484 DragSortableListView::RemoveItemList( BList& items )
 485 {
 486         int32 count = items.CountItems();
 487         for ( int32 i = 0; i < count; i++ )
 488         {
 489                 BListItem* item = (BListItem*)items.ItemAt( i );
 490                 if ( RemoveItem( item ) )
 491                         delete item;
 492         }
 493 }
 494
 495 /*****************************************************************************
 496  * DragSortableListView::RemoveSelected
 497  *****************************************************************************/
 498 void
 499 DragSortableListView::RemoveSelected()
 500 {
 501         BList items;
 502         for ( int32 i = 0; BListItem* item = ItemAt( CurrentSelection( i ) ); i++ )
 503                 items.AddItem( (void*)item );
 504         RemoveItemList( items );
 505 }
 506
 507 /*****************************************************************************
 508  * DragSortableListView::_SetDropAnticipationRect
 509  *****************************************************************************/
 510 void
 511 DragSortableListView::_SetDropAnticipationRect( BRect r )
 512 {
 513         if ( fDropRect != r )
 514         {
 515                 if ( fDropRect.IsValid() )
 516                         Invalidate( fDropRect );
 517                 fDropRect = r;
 518                 if ( fDropRect.IsValid() )
 519                         Invalidate( fDropRect );
 520         }
 521 }
 522
 523 /*****************************************************************************
 524  * DragSortableListView::_SetDropAnticipationRect
 525  *****************************************************************************/
 526 void
 527 DragSortableListView::_SetDropIndex( int32 index )
 528 {
 529         if ( fDropIndex != index )
 530         {
 531                 fDropIndex = index;
 532                 if ( fDropIndex == -1 )
 533                         _SetDropAnticipationRect( BRect( 0.0, 0.0, -1.0, -1.0 ) );
 534                 else
 535                 {
 536                         int32 count = CountItems();
 537                         if ( fDropIndex == count )
 538                         {
 539                                 BRect r;
 540                                 if ( BListItem* item = ItemAt( count - 1 ) )
 541                                 {
 542                                         r = ItemFrame( count - 1 );
 543                                         r.top = r.bottom + 1.0;
 544                                         r.bottom = r.top + 1.0;
 545                                 }
 546                                 else
 547                                 {
 548                                         r = Bounds();
 549                                         r.bottom--;     // compensate for scrollbars moved slightly out of window
 550                                 }
 551                                 _SetDropAnticipationRect( r );
 552                         }
 553                         else
 554                         {
 555                                 BRect r = ItemFrame( fDropIndex );
 556                                 r.bottom = r.top + 1.0;
 557                                 _SetDropAnticipationRect( r );
 558                         }
 559                 }
 560         }
 561 }
 562
 563 /*****************************************************************************
 564  * DragSortableListView::_RemoveDropAnticipationRect
 565  *****************************************************************************/
 566 void
 567 DragSortableListView::_RemoveDropAnticipationRect()
 568 {
 569         _SetDropAnticipationRect( BRect( 0.0, 0.0, -1.0, -1.0 ) );
 570         _SetDropIndex( -1 );
 571 }
 572
 573
 574 /*****************************************************************************
 575  * PlaylistView class
 576  *****************************************************************************/
 577 PlaylistView::PlaylistView( BRect frame, InterfaceWindow* mainWindow,
 578                             VlcWrapper* wrapper,
 579                             BMessage* selectionChangeMessage )
 580         : DragSortableListView( frame, "playlist listview",
 581                                                         B_MULTIPLE_SELECTION_LIST, B_FOLLOW_ALL_SIDES,
 582                                                         B_WILL_DRAW | B_NAVIGABLE | B_PULSE_NEEDED
 583                                                         | B_FRAME_EVENTS | B_FULL_UPDATE_ON_RESIZE ),
 584           fCurrentIndex( -1 ),
 585           fPlaying( false ),
 586           fMainWindow( mainWindow ),
 587           fSelectionChangeMessage( selectionChangeMessage ),
 588           fVlcWrapper( wrapper )
 589 {
 590 }
 591
 592 PlaylistView::~PlaylistView()
 593 {
 594         delete fSelectionChangeMessage;
 595 }
 596
 597 /*****************************************************************************
 598  * PlaylistView::AttachedToWindow
 599  *****************************************************************************/
 600 void
 601 PlaylistView::AttachedToWindow()
 602 {
 603         // get pulse message every two frames
 604         Window()->SetPulseRate( 80000 );
 605 }
 606
 607 /*****************************************************************************
 608  * PlaylistView::MessageReceived
 609  *****************************************************************************/
 610 void
 611 PlaylistView::MessageReceived( BMessage* message)
 612 {
 613         switch ( message->what )
 614         {
 615                 case B_SIMPLE_DATA:
 616                         if ( message->HasPointer( "list" ) )
 617                         {
 618                                 // message comes from ourself
 619                                 DragSortableListView::MessageReceived( message );
 620                         }
 621                         else
 622                         {
 623                                 // message comes from another app (for example Tracker)
 624                                 message->AddInt32( "drop index", fDropIndex );
 625                                 fMainWindow->PostMessage( message, fMainWindow );
 626                         }
 627                         break;
 628                 default:
 629                         DragSortableListView::MessageReceived( message );
 630                         break;
 631         }
 632 }
 633
 634 /*****************************************************************************
 635  * PlaylistView::MouseDown
 636  *****************************************************************************/
 637 void
 638 PlaylistView::MouseDown( BPoint where )
 639 {
 640         int32 clicks = 1;
 641         Window()->CurrentMessage()->FindInt32( "clicks", &clicks );
 642         bool handled = false;
 643         for ( int32 i = 0; PlaylistItem* item = (PlaylistItem*)ItemAt( i ); i++ )
 644         {
 645                 BRect r = ItemFrame( i );
 646                 if ( r.Contains( where ) )
 647                 {
 648                         if ( clicks == 2 )
 649                         {
 650                                 fVlcWrapper->PlaylistJumpTo( i );
 651                                 handled = true;
 652                         }
 653                         else if ( i == fCurrentIndex )
 654                         {
 655                                 r.right = r.left + TEXT_OFFSET;
 656                                 if ( r.Contains ( where ) )
 657                                 {
 658                                         fMainWindow->PostMessage( PAUSE_PLAYBACK );
 659                                         InvalidateItem( i );
 660                                         handled = true;
 661                                 }
 662                         }
 663                         break;
 664                 }
 665         }
 666         if ( !handled )
 667                 DragSortableListView::MouseDown(where);
 668 }
 669
 670 /*****************************************************************************
 671  * PlaylistView::KeyDown
 672  *****************************************************************************/
 673 void
 674 PlaylistView::KeyDown( const char* bytes, int32 numBytes )
 675 {
 676         if ( numBytes < 1 )
 677                 return;
 678
 679         if ( ( bytes[0] == B_BACKSPACE ) || ( bytes[0] == B_DELETE ) )
 680         {
 681                 RemoveSelected();
 682         }
 683         DragSortableListView::KeyDown( bytes, numBytes );
 684 }
 685
 686 /*****************************************************************************
 687  * PlaylistView::Pulse
 688  *****************************************************************************/
 689 void
 690 PlaylistView::Pulse()
 691 {
 692         if ( fMainWindow->IsStopped() )
 693                 SetPlaying( false );
 694 }
 695
 696 /*****************************************************************************
 697  * PlaylistView::SelectionChanged
 698  *****************************************************************************/
 699 void
 700 PlaylistView::SelectionChanged()
 701 {
 702         BLooper* looper = Looper();
 703         if ( fSelectionChangeMessage && looper )
 704         {
 705                 BMessage message( *fSelectionChangeMessage );
 706                 looper->PostMessage( &message );
 707         }
 708 }
 709
 710
 711 /*****************************************************************************
 712  * PlaylistView::MoveItems
 713  *****************************************************************************/
 714 void
 715 PlaylistView::MoveItems( BList& items, int32 index )
 716 {
 717         DeselectAll();
 718         // we remove the items while we look at them, the insertion index is decreased
 719         // when the items index is lower, so that we insert at the right spot after
 720         // removal
 721         if ( fVlcWrapper->PlaylistLock() )
 722         {
 723                 BList removedItems;
 724                 BList removeItems;
 725                 int32 count = items.CountItems();
 726                 int32 indexOriginal = index;
 727                 // remember currently playing item
 728                 int32 currentIndex, size;
 729                 fVlcWrapper->GetPlaylistInfo( currentIndex, size );
 730                 BListItem* playingItem = ItemAt( currentIndex );
 731                 // collect item pointers for removal by index
 732                 for ( int32 i = 0; i < count; i++ )
 733                 {
 734                         int32 removeIndex = IndexOf( (BListItem*)items.ItemAt( i ) );
 735                         void* item = fVlcWrapper->PlaylistItemAt( removeIndex );
 736                         if ( item && removeItems.AddItem( item ) )
 737                         {
 738                                 if ( removeIndex < index )
 739                                         index--;
 740                         }
 741                         // else ??? -> blow up
 742                 }
 743                 // actually remove items using pointers
 744                 for ( int32 i = 0; i < count; i++ )
 745                 {
 746                         void* item = fVlcWrapper->PlaylistRemoveItem( removeItems.ItemAt( i ) );
 747                         if ( item && !removedItems.AddItem( item ) )
 748                                 free( item );
 749                 }
 750                 // add items at index
 751                 for ( int32 i = 0; void* item = removedItems.ItemAt( i ); i++ )
 752                 {
 753                         if ( fVlcWrapper->PlaylistAddItem( item, index ) )
 754                                 // next items will be inserted after this one
 755                                 index++;
 756                         else
 757                                 free( item );
 758                 }
 759                 // update GUI
 760                 DragSortableListView::MoveItems( items, indexOriginal );
 761                 // restore currently playing item
 762                 for ( int32 i = 0; BListItem* item = ItemAt( i ); i++ )
 763                 {
 764                         if ( item == playingItem )
 765                         {
 766                                 fVlcWrapper->PlaylistSetPlaying( i );
 767                                 SetCurrent( i );
 768                                 break;
 769                         }
 770                 }
 771                 fVlcWrapper->PlaylistUnlock();
 772         }
 773 }
 774
 775 /*****************************************************************************
 776  * PlaylistView::CopyItems
 777  *****************************************************************************/
 778 void
 779 PlaylistView::CopyItems( BList& items, int32 toIndex )
 780 {
 781         DeselectAll();
 782         // we remove the items while we look at them, the insertion index is decreased
 783         // when the items index is lower, so that we insert at the right spot after
 784         // removal
 785         if ( fVlcWrapper->PlaylistLock() )
 786         {
 787                 BList clonedItems;
 788                 int32 count = items.CountItems();
 789                 // remember currently playing item
 790                 int32 currentIndex, size;
 791                 fVlcWrapper->GetPlaylistInfo( currentIndex, size );
 792                 BListItem* playingItem = ItemAt( currentIndex );
 793                 // collect cloned item pointers
 794                 for ( int32 i = 0; i < count; i++ )
 795                 {
 796                         int32 index = IndexOf( (BListItem*)items.ItemAt( i ) );
 797                         void* item = fVlcWrapper->PlaylistItemAt( index );
 798                         void* cloned = fVlcWrapper->PlaylistCloneItem( item );
 799                         if ( cloned && !clonedItems.AddItem( cloned ) )
 800                                 free( cloned );
 801
 802                 }
 803                 // add cloned items at index
 804                 int32 index = toIndex;
 805                 for ( int32 i = 0; void* item = clonedItems.ItemAt( i ); i++ )
 806                 {
 807                         if ( fVlcWrapper->PlaylistAddItem( item, index ) )
 808                                 // next items will be inserted after this one
 809                                 index++;
 810                         else
 811                                 free( item );
 812                 }
 813                 // update GUI
 814                 DragSortableListView::CopyItems( items, toIndex );
 815                 // restore currently playing item
 816                 for ( int32 i = 0; BListItem* item = ItemAt( i ); i++ )
 817                 {
 818                         if ( item == playingItem )
 819                         {
 820                                 fVlcWrapper->PlaylistSetPlaying( i );
 821                                 SetCurrent( i );
 822                                 break;
 823                         }
 824                 }
 825                 fVlcWrapper->PlaylistUnlock();
 826         }
 827 }
 828
 829 /*****************************************************************************
 830  * PlaylistView::RemoveItemList
 831  *****************************************************************************/
 832 void
 833 PlaylistView::RemoveItemList( BList& items )
 834 {
 835         if ( fVlcWrapper->PlaylistLock() )
 836         {
 837                 // collect item pointers for removal
 838                 BList removeItems;
 839                 int32 count = items.CountItems();
 840                 for ( int32 i = 0; i < count; i++ )
 841                 {
 842                         int32 index = IndexOf( (BListItem*)items.ItemAt( i ) );
 843                         void* item = fVlcWrapper->PlaylistItemAt( index );
 844                         if ( item && !removeItems.AddItem( item ) )
 845                                 free( item );
 846                 }
 847                 // remove items from playlist
 848                 count = removeItems.CountItems();
 849                 for ( int32 i = 0; void* item = removeItems.ItemAt( i ); i++ )
 850                 {
 851                         fVlcWrapper->PlaylistRemoveItem( item );
 852                 }
 853                 // update GUI
 854                 DragSortableListView::RemoveItemList( items );
 855                 fVlcWrapper->PlaylistUnlock();
 856         }
 857 }
 858
 859 /*****************************************************************************
 860  * PlaylistView::CloneItem
 861  *****************************************************************************/
 862 BListItem*
 863 PlaylistView::CloneItem( int32 atIndex ) const
 864 {
 865         BListItem* clone = NULL;
 866         if ( PlaylistItem* item = dynamic_cast<PlaylistItem*>( ItemAt( atIndex ) ) )
 867                 clone = new PlaylistItem( item->Text() );
 868         return clone;
 869 }
 870
 871 /*****************************************************************************
 872  * PlaylistView::DrawListItem
 873  *****************************************************************************/
 874 void
 875 PlaylistView::DrawListItem( BView* owner, int32 index, BRect frame ) const
 876 {
 877         if ( PlaylistItem* item = dynamic_cast<PlaylistItem*>( ItemAt( index ) ) )
 878                 item->Draw( owner,  frame, index % 2, index == fCurrentIndex, fPlaying );
 879 }
 880
 881 /*****************************************************************************
 882  * PlaylistView::MakeDragMessage
 883  *****************************************************************************/
 884 void
 885 PlaylistView::MakeDragMessage( BMessage* message ) const
 886 {
 887         if ( message )
 888         {
 889                 message->AddPointer( "list", (void*)this );
 890                 int32 index;
 891                 for ( int32 i = 0; ( index = CurrentSelection( i ) ) >= 0; i++ )
 892                         message->AddInt32( "index", index );
 893                         // TODO: add refs to message (inter application communication)
 894         }
 895 }
 896
 897 /*****************************************************************************
 898  * PlaylistView::SetCurrent
 899  *****************************************************************************/
 900 void
 901 PlaylistView::SetCurrent( int32 index )
 902 {
 903         if ( fCurrentIndex != index )
 904         {
 905                 InvalidateItem( fCurrentIndex );
 906                 fCurrentIndex = index;
 907                 InvalidateItem( fCurrentIndex );
 908         }
 909 }
 910
 911 /*****************************************************************************
 912  * PlaylistView::SetPlaying
 913  *****************************************************************************/
 914 void
 915 PlaylistView::SetPlaying( bool playing )
 916 {
 917         if ( fPlaying != playing )
 918         {
 919                 fPlaying = playing;
 920                 InvalidateItem( fCurrentIndex );
 921         }
 922 }
 923
 924 /*****************************************************************************
 925  * PlaylistView::SetPlaying
 926  *****************************************************************************/
 927 void
 928 PlaylistView::RebuildList()
 929 {
 930         // remove all items
 931         int32 count = CountItems();
 932         while ( BListItem* item = RemoveItem( --count ) )
 933                 delete item;
 934
 935         // rebuild listview from VLC's playlist
 936         for ( int i = 0; i < fVlcWrapper->PlaylistSize(); i++ )
 937                 AddItem( new PlaylistItem( fVlcWrapper->PlaylistItemName( i ) ) );
 938 }