src/common/sizer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        sizer.cpp
   3 // Purpose:     provide new wxSizer class for layout
   4 // Author:      Robert Roebling and Robin Dunn, contributions by
   5 //              Dirk Holtwick, Ron Lee
   6 // Modified by: Ron Lee
   7 // Created:
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) Robin Dunn, Robert Roebling
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  14 #pragma implementation "sizer.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/string.h"
  26     #include "wx/intl.h"
  27 #endif // WX_PRECOMP
  28
  29 #include "wx/sizer.h"
  30 #include "wx/utils.h"
  31 #include "wx/statbox.h"
  32 #include "wx/settings.h"
  33 #include "wx/listimpl.cpp"
  34 #include "wx/intl.h"
  35 #if WXWIN_COMPATIBILITY_2_4
  36     #include "wx/notebook.h"
  37 #endif
  38
  39 #ifdef __WXMAC__
  40 #   include "wx/mac/uma.h"
  41 #endif
  42
  43 //---------------------------------------------------------------------------
  44
  45 IMPLEMENT_CLASS(wxSizerItem, wxObject)
  46 IMPLEMENT_CLASS(wxSizer, wxObject)
  47 IMPLEMENT_CLASS(wxGridSizer, wxSizer)
  48 IMPLEMENT_CLASS(wxFlexGridSizer, wxGridSizer)
  49 IMPLEMENT_CLASS(wxBoxSizer, wxSizer)
  50 #if wxUSE_STATBOX
  51 IMPLEMENT_CLASS(wxStaticBoxSizer, wxBoxSizer)
  52 #endif
  53 #if wxUSE_BUTTON
  54 IMPLEMENT_CLASS(wxStdDialogButtonSizer, wxBoxSizer)
  55 #endif
  56
  57 WX_DEFINE_EXPORTED_LIST( wxSizerItemList );
  58
  59 /*
  60     TODO PROPERTIES
  61       sizeritem
  62         object
  63         object_ref
  64           minsize
  65           option
  66           flag
  67           border
  68      spacer
  69         option
  70         flag
  71         borfder
  72     boxsizer
  73        orient
  74     staticboxsizer
  75        orient
  76        label
  77     gridsizer
  78        rows
  79        cols
  80        vgap
  81        hgap
  82     flexgridsizer
  83        rows
  84        cols
  85        vgap
  86        hgap
  87        growablerows
  88        growablecols
  89     minsize
  90 */
  91
  92 //---------------------------------------------------------------------------
  93 // wxSizerItem
  94 //---------------------------------------------------------------------------
  95
  96 void wxSizerItem::Init()
  97 {
  98     m_window = NULL;
  99     m_sizer = NULL;
 100     m_show = true;
 101     m_userData = NULL;
 102     m_zoneRect = wxRect( 0, 0, 0, 0 );
 103 }
 104
 105 void wxSizerItem::Init(const wxSizerFlags& flags)
 106 {
 107     Init();
 108
 109     m_proportion = flags.GetProportion();
 110     m_flag = flags.GetFlags();
 111     m_border = flags.GetBorderInPixels();
 112 }
 113
 114 wxSizerItem::wxSizerItem( int width, int height, int proportion, int flag, int border, wxObject* userData )
 115     : m_window( NULL )
 116     , m_sizer( NULL )
 117     , m_size( wxSize( width, height ) ) // size is set directly
 118     , m_minSize( m_size )               // minimal size is the initial size
 119     , m_proportion( proportion )
 120     , m_border( border )
 121     , m_flag( flag )
 122     , m_zoneRect( 0, 0, 0, 0 )
 123     , m_show( true )
 124     , m_userData( userData )
 125 {
 126     SetRatio( m_size );
 127 }
 128
 129 wxSizerItem::wxSizerItem( wxWindow *window, int proportion, int flag, int border, wxObject* userData )
 130     : m_window( window )
 131     , m_sizer( NULL )
 132     , m_proportion( proportion )
 133     , m_border( border )
 134     , m_flag( flag )
 135     , m_zoneRect( 0, 0, 0, 0 )
 136     , m_show( true )
 137     , m_userData( userData )
 138 {
 139     if (flag & wxFIXED_MINSIZE)
 140         window->SetMinSize(window->GetSize());
 141     m_minSize = window->GetSize();
 142
 143     // aspect ratio calculated from initial size
 144     SetRatio( m_minSize );
 145
 146     // m_size is calculated later
 147 }
 148
 149 wxSizerItem::wxSizerItem( wxSizer *sizer, int proportion, int flag, int border, wxObject* userData )
 150     : m_window( NULL )
 151     , m_sizer( sizer )
 152     , m_proportion( proportion )
 153     , m_border( border )
 154     , m_flag( flag )
 155     , m_zoneRect( 0, 0, 0, 0 )
 156     , m_show( true )
 157     , m_ratio( 0.0 )
 158     , m_userData( userData )
 159 {
 160     // m_minSize is calculated later
 161     // m_size is calculated later
 162 }
 163
 164 wxSizerItem::wxSizerItem()
 165 {
 166     Init();
 167
 168     m_proportion = 0;
 169     m_border = 0;
 170     m_flag = 0;
 171 }
 172
 173 wxSizerItem::~wxSizerItem()
 174 {
 175     delete m_userData;
 176
 177     if ( m_window )
 178     {
 179         m_window->SetContainingSizer(NULL);
 180     }
 181     else // we must be a sizer
 182     {
 183         delete m_sizer;
 184     }
 185 }
 186
 187
 188 wxSize wxSizerItem::GetSize() const
 189 {
 190     wxSize ret;
 191     if (IsSizer())
 192         ret = m_sizer->GetSize();
 193     else
 194     if (IsWindow())
 195         ret = m_window->GetSize();
 196     else ret = m_size;
 197
 198     if (m_flag & wxWEST)
 199         ret.x += m_border;
 200     if (m_flag & wxEAST)
 201         ret.x += m_border;
 202     if (m_flag & wxNORTH)
 203         ret.y += m_border;
 204     if (m_flag & wxSOUTH)
 205         ret.y += m_border;
 206
 207     return ret;
 208 }
 209
 210 wxSize wxSizerItem::CalcMin()
 211 {
 212     if (IsSizer())
 213     {
 214         m_minSize = m_sizer->GetMinSize();
 215
 216         // if we have to preserve aspect ratio _AND_ this is
 217         // the first-time calculation, consider ret to be initial size
 218         if ((m_flag & wxSHAPED) && !m_ratio)
 219             SetRatio(m_minSize);
 220     }
 221     else if ( IsWindow() )
 222     {
 223         // Since the size of the window may change during runtime, we
 224         // should use the current minimal/best size.
 225         m_minSize = m_window->GetBestFittingSize();
 226     }
 227
 228     return GetMinSizeWithBorder();
 229 }
 230
 231 wxSize wxSizerItem::GetMinSizeWithBorder() const
 232 {
 233     wxSize ret = m_minSize;
 234
 235     if (m_flag & wxWEST)
 236         ret.x += m_border;
 237     if (m_flag & wxEAST)
 238         ret.x += m_border;
 239     if (m_flag & wxNORTH)
 240         ret.y += m_border;
 241     if (m_flag & wxSOUTH)
 242         ret.y += m_border;
 243
 244     return ret;
 245 }
 246
 247
 248 void wxSizerItem::SetDimension( wxPoint pos, wxSize size )
 249 {
 250     if (m_flag & wxSHAPED)
 251     {
 252         // adjust aspect ratio
 253         int rwidth = (int) (size.y * m_ratio);
 254         if (rwidth > size.x)
 255         {
 256             // fit horizontally
 257             int rheight = (int) (size.x / m_ratio);
 258             // add vertical space
 259             if (m_flag & wxALIGN_CENTER_VERTICAL)
 260                 pos.y += (size.y - rheight) / 2;
 261             else if (m_flag & wxALIGN_BOTTOM)
 262                 pos.y += (size.y - rheight);
 263             // use reduced dimensions
 264             size.y =rheight;
 265         }
 266         else if (rwidth < size.x)
 267         {
 268             // add horizontal space
 269             if (m_flag & wxALIGN_CENTER_HORIZONTAL)
 270                 pos.x += (size.x - rwidth) / 2;
 271             else if (m_flag & wxALIGN_RIGHT)
 272                 pos.x += (size.x - rwidth);
 273             size.x = rwidth;
 274         }
 275     }
 276
 277     // This is what GetPosition() returns. Since we calculate
 278     // borders afterwards, GetPosition() will be the left/top
 279     // corner of the surrounding border.
 280     m_pos = pos;
 281
 282     if (m_flag & wxWEST)
 283     {
 284         pos.x += m_border;
 285         size.x -= m_border;
 286     }
 287     if (m_flag & wxEAST)
 288     {
 289         size.x -= m_border;
 290     }
 291     if (m_flag & wxNORTH)
 292     {
 293         pos.y += m_border;
 294         size.y -= m_border;
 295     }
 296     if (m_flag & wxSOUTH)
 297     {
 298         size.y -= m_border;
 299     }
 300
 301     if (IsSizer())
 302         m_sizer->SetDimension( pos.x, pos.y, size.x, size.y );
 303
 304     m_zoneRect = wxRect(pos, size);
 305     if (IsWindow())
 306         m_window->SetSize( pos.x, pos.y, size.x, size.y, wxSIZE_ALLOW_MINUS_ONE );
 307
 308     m_size = size;
 309 }
 310
 311 void wxSizerItem::DeleteWindows()
 312 {
 313     if (m_window)
 314     {
 315          m_window->Destroy();
 316          m_window = NULL;
 317     }
 318
 319     if (m_sizer)
 320         m_sizer->DeleteWindows();
 321 }
 322
 323 bool wxSizerItem::IsWindow() const
 324 {
 325     return (m_window != NULL);
 326 }
 327
 328 bool wxSizerItem::IsSizer() const
 329 {
 330     return (m_sizer != NULL);
 331 }
 332
 333 bool wxSizerItem::IsSpacer() const
 334 {
 335     return (m_window == NULL) && (m_sizer == NULL);
 336 }
 337
 338 void wxSizerItem::Show( bool show )
 339 {
 340     m_show = show;
 341
 342     if( IsWindow() )
 343         m_window->Show( show );
 344     else if( IsSizer() )
 345         m_sizer->ShowItems( show );
 346
 347     // ... nothing else to do to hide/show spacers
 348 }
 349
 350 void wxSizerItem::SetOption( int option )
 351 {
 352     SetProportion( option );
 353 }
 354
 355 int wxSizerItem::GetOption() const
 356 {
 357     return GetProportion();
 358 }
 359
 360
 361 //---------------------------------------------------------------------------
 362 // wxSizer
 363 //---------------------------------------------------------------------------
 364
 365 wxSizer::wxSizer()
 366     : m_minSize( wxSize( 0, 0 ) )
 367 {
 368 }
 369
 370 wxSizer::~wxSizer()
 371 {
 372     WX_CLEAR_LIST(wxSizerItemList, m_children);
 373 }
 374
 375 wxSizerItem* wxSizer::Insert( size_t index, wxSizerItem *item )
 376 {
 377     m_children.Insert( index, item );
 378
 379     if( item->GetWindow() )
 380         item->GetWindow()->SetContainingSizer( this );
 381
 382     return item;
 383 }
 384
 385 bool wxSizer::Remove( wxWindow *window )
 386 {
 387     return Detach( window );
 388 }
 389
 390 bool wxSizer::Remove( wxSizer *sizer )
 391 {
 392     wxASSERT_MSG( sizer, _T("Removing NULL sizer") );
 393
 394     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 395     while (node)
 396     {
 397         wxSizerItem     *item = node->GetData();
 398
 399         if (item->GetSizer() == sizer)
 400         {
 401             delete item;
 402             m_children.Erase( node );
 403             return true;
 404         }
 405
 406         node = node->GetNext();
 407     }
 408
 409     return false;
 410 }
 411
 412 bool wxSizer::Remove( int index )
 413 {
 414     wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),
 415                  false,
 416                  _T("Remove index is out of range") );
 417
 418     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
 419
 420     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 421
 422     wxSizerItem *item = node->GetData();
 423
 424     if( item->IsWindow() )
 425         item->GetWindow()->SetContainingSizer( NULL );
 426
 427     delete item;
 428     m_children.Erase( node );
 429     return true;
 430 }
 431
 432 bool wxSizer::Detach( wxSizer *sizer )
 433 {
 434     wxASSERT_MSG( sizer, _T("Detaching NULL sizer") );
 435
 436     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 437     while (node)
 438     {
 439         wxSizerItem     *item = node->GetData();
 440
 441         if (item->GetSizer() == sizer)
 442         {
 443             item->DetachSizer();
 444             delete item;
 445             m_children.Erase( node );
 446             return true;
 447         }
 448         node = node->GetNext();
 449     }
 450
 451     return false;
 452 }
 453
 454 bool wxSizer::Detach( wxWindow *window )
 455 {
 456     wxASSERT_MSG( window, _T("Detaching NULL window") );
 457
 458     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 459     while (node)
 460     {
 461         wxSizerItem     *item = node->GetData();
 462
 463         if (item->GetWindow() == window)
 464         {
 465             item->GetWindow()->SetContainingSizer( NULL );
 466             delete item;
 467             m_children.Erase( node );
 468             return true;
 469         }
 470         node = node->GetNext();
 471     }
 472
 473     return false;
 474 }
 475
 476 bool wxSizer::Detach( int index )
 477 {
 478     wxCHECK_MSG( index >= 0 && (size_t)index < m_children.GetCount(),
 479                  false,
 480                  _T("Detach index is out of range") );
 481
 482     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
 483
 484     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 485
 486     wxSizerItem *item = node->GetData();
 487
 488     if( item->IsSizer() )
 489         item->DetachSizer();
 490     else if( item->IsWindow() )
 491         item->GetWindow()->SetContainingSizer( NULL );
 492
 493     delete item;
 494     m_children.Erase( node );
 495     return true;
 496 }
 497
 498 void wxSizer::Clear( bool delete_windows )
 499 {
 500     // First clear the ContainingSizer pointers
 501     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 502     while (node)
 503     {
 504         wxSizerItem     *item = node->GetData();
 505
 506         if (item->IsWindow())
 507             item->GetWindow()->SetContainingSizer( NULL );
 508         node = node->GetNext();
 509     }
 510
 511     // Destroy the windows if needed
 512     if (delete_windows)
 513         DeleteWindows();
 514
 515     // Now empty the list
 516     WX_CLEAR_LIST(wxSizerItemList, m_children);
 517 }
 518
 519 void wxSizer::DeleteWindows()
 520 {
 521     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 522     while (node)
 523     {
 524         wxSizerItem     *item = node->GetData();
 525
 526         item->DeleteWindows();
 527         node = node->GetNext();
 528     }
 529 }
 530
 531 wxSize wxSizer::Fit( wxWindow *window )
 532 {
 533     wxSize size(window->IsTopLevel() ? FitSize(window)
 534                                      : GetMinWindowSize(window));
 535
 536     window->SetSize( size );
 537
 538     return size;
 539 }
 540
 541 void wxSizer::FitInside( wxWindow *window )
 542 {
 543     wxSize size;
 544     if (window->IsTopLevel())
 545         size = VirtualFitSize( window );
 546     else
 547         size = GetMinClientSize( window );
 548
 549     window->SetVirtualSize( size );
 550 }
 551
 552 void wxSizer::Layout()
 553 {
 554     // (re)calculates minimums needed for each item and other preparations
 555     // for layout
 556     CalcMin();
 557
 558     // Applies the layout and repositions/resizes the items
 559     RecalcSizes();
 560 }
 561
 562 void wxSizer::SetSizeHints( wxWindow *window )
 563 {
 564     // Preserve the window's max size hints, but set the
 565     // lower bound according to the sizer calculations.
 566
 567     wxSize size = Fit( window );
 568
 569     window->SetSizeHints( size.x,
 570                           size.y,
 571                           window->GetMaxWidth(),
 572                           window->GetMaxHeight() );
 573 }
 574
 575 void wxSizer::SetVirtualSizeHints( wxWindow *window )
 576 {
 577     // Preserve the window's max size hints, but set the
 578     // lower bound according to the sizer calculations.
 579
 580     FitInside( window );
 581     wxSize size( window->GetVirtualSize() );
 582     window->SetVirtualSizeHints( size.x,
 583                                  size.y,
 584                                  window->GetMaxWidth(),
 585                                  window->GetMaxHeight() );
 586 }
 587
 588 wxSize wxSizer::GetMaxWindowSize( wxWindow *window ) const
 589 {
 590     return window->GetMaxSize();
 591 }
 592
 593 wxSize wxSizer::GetMinWindowSize( wxWindow *window )
 594 {
 595     wxSize      minSize( GetMinSize() );
 596     wxSize      size( window->GetSize() );
 597     wxSize      client_size( window->GetClientSize() );
 598
 599     return wxSize( minSize.x+size.x-client_size.x,
 600                    minSize.y+size.y-client_size.y );
 601 }
 602
 603 // TODO on mac we need a function that determines how much free space this
 604 // min size contains, in order to make sure that we have 20 pixels of free
 605 // space around the controls
 606
 607 // Return a window size that will fit within the screens dimensions
 608 wxSize wxSizer::FitSize( wxWindow *window )
 609 {
 610     wxSize size     = GetMinWindowSize( window );
 611     wxSize sizeMax  = GetMaxWindowSize( window );
 612
 613     // Limit the size if sizeMax != wxDefaultSize
 614
 615     if ( size.x > sizeMax.x && sizeMax.x != wxDefaultCoord )
 616         size.x = sizeMax.x;
 617     if ( size.y > sizeMax.y && sizeMax.y != wxDefaultCoord )
 618         size.y = sizeMax.y;
 619
 620     return size;
 621 }
 622
 623 wxSize wxSizer::GetMaxClientSize( wxWindow *window ) const
 624 {
 625     wxSize maxSize( window->GetMaxSize() );
 626
 627     if( maxSize != wxDefaultSize )
 628     {
 629         wxSize size( window->GetSize() );
 630         wxSize client_size( window->GetClientSize() );
 631
 632         return wxSize( maxSize.x + client_size.x - size.x,
 633                        maxSize.y + client_size.y - size.y );
 634     }
 635     else
 636         return wxDefaultSize;
 637 }
 638
 639 wxSize wxSizer::GetMinClientSize( wxWindow *WXUNUSED(window) )
 640 {
 641     return GetMinSize();  // Already returns client size.
 642 }
 643
 644 wxSize wxSizer::VirtualFitSize( wxWindow *window )
 645 {
 646     wxSize size     = GetMinClientSize( window );
 647     wxSize sizeMax  = GetMaxClientSize( window );
 648
 649     // Limit the size if sizeMax != wxDefaultSize
 650
 651     if ( size.x > sizeMax.x && sizeMax.x != wxDefaultCoord )
 652         size.x = sizeMax.x;
 653     if ( size.y > sizeMax.y && sizeMax.y != wxDefaultCoord )
 654         size.y = sizeMax.y;
 655
 656     return size;
 657 }
 658
 659 void wxSizer::SetDimension( int x, int y, int width, int height )
 660 {
 661     m_position.x = x;
 662     m_position.y = y;
 663     m_size.x = width;
 664     m_size.y = height;
 665     Layout();
 666 }
 667
 668 wxSize wxSizer::GetMinSize()
 669 {
 670     wxSize ret( CalcMin() );
 671     if (ret.x < m_minSize.x) ret.x = m_minSize.x;
 672     if (ret.y < m_minSize.y) ret.y = m_minSize.y;
 673     return ret;
 674 }
 675
 676 void wxSizer::DoSetMinSize( int width, int height )
 677 {
 678     m_minSize.x = width;
 679     m_minSize.y = height;
 680 }
 681
 682 bool wxSizer::DoSetItemMinSize( wxWindow *window, int width, int height )
 683 {
 684     wxASSERT_MSG( window, _T("SetMinSize for NULL window") );
 685
 686     // Is it our immediate child?
 687
 688     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 689     while (node)
 690     {
 691         wxSizerItem     *item = node->GetData();
 692
 693         if (item->GetWindow() == window)
 694         {
 695             item->SetMinSize( width, height );
 696             return true;
 697         }
 698         node = node->GetNext();
 699     }
 700
 701     // No?  Search any subsizers we own then
 702
 703     node = m_children.GetFirst();
 704     while (node)
 705     {
 706         wxSizerItem     *item = node->GetData();
 707
 708         if ( item->GetSizer() &&
 709              item->GetSizer()->DoSetItemMinSize( window, width, height ) )
 710         {
 711             // A child sizer found the requested windw, exit.
 712             return true;
 713         }
 714         node = node->GetNext();
 715     }
 716
 717     return false;
 718 }
 719
 720 bool wxSizer::DoSetItemMinSize( wxSizer *sizer, int width, int height )
 721 {
 722     wxASSERT_MSG( sizer, _T("SetMinSize for NULL sizer") );
 723
 724     // Is it our immediate child?
 725
 726     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 727     while (node)
 728     {
 729         wxSizerItem     *item = node->GetData();
 730
 731         if (item->GetSizer() == sizer)
 732         {
 733             item->GetSizer()->DoSetMinSize( width, height );
 734             return true;
 735         }
 736         node = node->GetNext();
 737     }
 738
 739     // No?  Search any subsizers we own then
 740
 741     node = m_children.GetFirst();
 742     while (node)
 743     {
 744         wxSizerItem     *item = node->GetData();
 745
 746         if ( item->GetSizer() &&
 747              item->GetSizer()->DoSetItemMinSize( sizer, width, height ) )
 748         {
 749             // A child found the requested sizer, exit.
 750             return true;
 751         }
 752         node = node->GetNext();
 753     }
 754
 755     return false;
 756 }
 757
 758 bool wxSizer::DoSetItemMinSize( size_t index, int width, int height )
 759 {
 760     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
 761
 762     wxCHECK_MSG( node, false, _T("Failed to find child node") );
 763
 764     wxSizerItem     *item = node->GetData();
 765
 766     if (item->GetSizer())
 767     {
 768         // Sizers contains the minimal size in them, if not calculated ...
 769         item->GetSizer()->DoSetMinSize( width, height );
 770     }
 771     else
 772     {
 773         // ... but the minimal size of spacers and windows is stored via the item
 774         item->SetMinSize( width, height );
 775     }
 776
 777     return true;
 778 }
 779
 780 wxSizerItem* wxSizer::GetItem( wxWindow *window, bool recursive )
 781 {
 782     wxASSERT_MSG( window, _T("GetItem for NULL window") );
 783
 784     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 785     while (node)
 786     {
 787         wxSizerItem     *item = node->GetData();
 788
 789         if (item->GetWindow() == window)
 790         {
 791             return item;
 792         }
 793         else if (recursive && item->IsSizer())
 794         {
 795             wxSizerItem *subitem = item->GetSizer()->GetItem( window, true );
 796             if (subitem)
 797                 return subitem;
 798         }
 799
 800         node = node->GetNext();
 801     }
 802
 803     return NULL;
 804 }
 805
 806 wxSizerItem* wxSizer::GetItem( wxSizer *sizer, bool recursive )
 807 {
 808     wxASSERT_MSG( sizer, _T("GetItem for NULL sizer") );
 809
 810     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 811     while (node)
 812     {
 813         wxSizerItem *item = node->GetData();
 814
 815         if (item->GetSizer() == sizer)
 816         {
 817             return item;
 818         }
 819         else if (recursive && item->IsSizer())
 820         {
 821             wxSizerItem *subitem = item->GetSizer()->GetItem( sizer, true );
 822             if (subitem)
 823                 return subitem;
 824         }
 825
 826         node = node->GetNext();
 827     }
 828
 829     return NULL;
 830 }
 831
 832 wxSizerItem* wxSizer::GetItem( size_t index )
 833 {
 834     wxCHECK_MSG( index < m_children.GetCount(),
 835                  NULL,
 836                  _T("GetItem index is out of range") );
 837
 838     return m_children.Item( index )->GetData();
 839 }
 840
 841 bool wxSizer::Show( wxWindow *window, bool show, bool recursive )
 842 {
 843     wxSizerItem *item = GetItem( window, recursive );
 844
 845     if ( item )
 846     {
 847          item->Show( show );
 848          return true;
 849     }
 850
 851     return false;
 852 }
 853
 854 bool wxSizer::Show( wxSizer *sizer, bool show, bool recursive )
 855 {
 856     wxSizerItem *item = GetItem( sizer, recursive );
 857
 858     if ( item )
 859     {
 860          item->Show( show );
 861          return true;
 862     }
 863
 864     return false;
 865 }
 866
 867 bool wxSizer::Show( size_t index, bool show)
 868 {
 869     wxSizerItem *item = GetItem( index );
 870
 871     if ( item )
 872     {
 873          item->Show( show );
 874          return true;
 875     }
 876
 877     return false;
 878 }
 879
 880 void wxSizer::ShowItems( bool show )
 881 {
 882     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 883     while (node)
 884     {
 885         node->GetData()->Show( show );
 886         node = node->GetNext();
 887     }
 888 }
 889
 890 bool wxSizer::IsShown( wxWindow *window ) const
 891 {
 892     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 893     while (node)
 894     {
 895         wxSizerItem     *item = node->GetData();
 896
 897         if (item->GetWindow() == window)
 898         {
 899             return item->IsShown();
 900         }
 901         node = node->GetNext();
 902     }
 903
 904     wxFAIL_MSG( _T("IsShown failed to find sizer item") );
 905
 906     return false;
 907 }
 908
 909 bool wxSizer::IsShown( wxSizer *sizer ) const
 910 {
 911     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
 912     while (node)
 913     {
 914         wxSizerItem     *item = node->GetData();
 915
 916         if (item->GetSizer() == sizer)
 917         {
 918             return item->IsShown();
 919         }
 920         node = node->GetNext();
 921     }
 922
 923     wxFAIL_MSG( _T("IsShown failed to find sizer item") );
 924
 925     return false;
 926 }
 927
 928 bool wxSizer::IsShown( size_t index ) const
 929 {
 930     wxCHECK_MSG( index < m_children.GetCount(),
 931                  false,
 932                  _T("IsShown index is out of range") );
 933
 934     return m_children.Item( index )->GetData()->IsShown();
 935 }
 936
 937
 938 //---------------------------------------------------------------------------
 939 // wxGridSizer
 940 //---------------------------------------------------------------------------
 941
 942 wxGridSizer::wxGridSizer( int rows, int cols, int vgap, int hgap )
 943     : m_rows( rows )
 944     , m_cols( cols )
 945     , m_vgap( vgap )
 946     , m_hgap( hgap )
 947 {
 948     if (m_rows == 0 && m_cols == 0)
 949         m_rows = 1;
 950 }
 951
 952 wxGridSizer::wxGridSizer( int cols, int vgap, int hgap )
 953     : m_rows( 0 )
 954     , m_cols( cols )
 955     , m_vgap( vgap )
 956     , m_hgap( hgap )
 957 {
 958     if (m_rows == 0 && m_cols == 0)
 959         m_rows = 1;
 960 }
 961
 962 int wxGridSizer::CalcRowsCols(int& nrows, int& ncols) const
 963 {
 964     int nitems = m_children.GetCount();
 965     if ( nitems)
 966     {
 967         if ( m_cols )
 968         {
 969             ncols = m_cols;
 970             nrows = (nitems + m_cols - 1) / m_cols;
 971         }
 972         else if ( m_rows )
 973         {
 974             ncols = (nitems + m_rows - 1) / m_rows;
 975             nrows = m_rows;
 976         }
 977         else // 0 columns, 0 rows?
 978         {
 979             wxFAIL_MSG( _T("grid sizer must have either rows or columns fixed") );
 980
 981             nrows = ncols = 0;
 982         }
 983     }
 984
 985     return nitems;
 986 }
 987
 988 void wxGridSizer::RecalcSizes()
 989 {
 990     int nitems, nrows, ncols;
 991     if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
 992         return;
 993
 994     wxSize sz( GetSize() );
 995     wxPoint pt( GetPosition() );
 996
 997     int w = (sz.x - (ncols - 1) * m_hgap) / ncols;
 998     int h = (sz.y - (nrows - 1) * m_vgap) / nrows;
 999
1000     int x = pt.x;
1001     for (int c = 0; c < ncols; c++)
1002     {
1003         int y = pt.y;
1004         for (int r = 0; r < nrows; r++)
1005         {
1006             int i = r * ncols + c;
1007             if (i < nitems)
1008             {
1009                 wxSizerItemList::compatibility_iterator node = m_children.Item( i );
1010
1011                 wxASSERT_MSG( node, _T("Failed to find SizerItemList node") );
1012
1013                 SetItemBounds( node->GetData(), x, y, w, h);
1014             }
1015             y = y + h + m_vgap;
1016         }
1017         x = x + w + m_hgap;
1018     }
1019 }
1020
1021 wxSize wxGridSizer::CalcMin()
1022 {
1023     int nrows, ncols;
1024     if ( CalcRowsCols(nrows, ncols) == 0 )
1025         return wxSize(10, 10);
1026
1027     // Find the max width and height for any component
1028     int w = 0;
1029     int h = 0;
1030
1031     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
1032     while (node)
1033     {
1034         wxSizerItem     *item = node->GetData();
1035         wxSize           sz( item->CalcMin() );
1036
1037         w = wxMax( w, sz.x );
1038         h = wxMax( h, sz.y );
1039
1040         node = node->GetNext();
1041     }
1042
1043     return wxSize( ncols * w + (ncols-1) * m_hgap,
1044                    nrows * h + (nrows-1) * m_vgap );
1045 }
1046
1047 void wxGridSizer::SetItemBounds( wxSizerItem *item, int x, int y, int w, int h )
1048 {
1049     wxPoint pt( x,y );
1050     wxSize sz( item->GetMinSizeWithBorder() );
1051     int flag = item->GetFlag();
1052
1053     if ((flag & wxEXPAND) || (flag & wxSHAPED))
1054     {
1055        sz = wxSize(w, h);
1056     }
1057     else
1058     {
1059         if (flag & wxALIGN_CENTER_HORIZONTAL)
1060         {
1061             pt.x = x + (w - sz.x) / 2;
1062         }
1063         else if (flag & wxALIGN_RIGHT)
1064         {
1065             pt.x = x + (w - sz.x);
1066         }
1067
1068         if (flag & wxALIGN_CENTER_VERTICAL)
1069         {
1070             pt.y = y + (h - sz.y) / 2;
1071         }
1072         else if (flag & wxALIGN_BOTTOM)
1073         {
1074             pt.y = y + (h - sz.y);
1075         }
1076     }
1077
1078     item->SetDimension(pt, sz);
1079 }
1080
1081 //---------------------------------------------------------------------------
1082 // wxFlexGridSizer
1083 //---------------------------------------------------------------------------
1084
1085 wxFlexGridSizer::wxFlexGridSizer( int rows, int cols, int vgap, int hgap )
1086                : wxGridSizer( rows, cols, vgap, hgap ),
1087                  m_flexDirection(wxBOTH),
1088                  m_growMode(wxFLEX_GROWMODE_SPECIFIED)
1089 {
1090 }
1091
1092 wxFlexGridSizer::wxFlexGridSizer( int cols, int vgap, int hgap )
1093                : wxGridSizer( cols, vgap, hgap ),
1094                  m_flexDirection(wxBOTH),
1095                  m_growMode(wxFLEX_GROWMODE_SPECIFIED)
1096 {
1097 }
1098
1099 wxFlexGridSizer::~wxFlexGridSizer()
1100 {
1101 }
1102
1103 void wxFlexGridSizer::RecalcSizes()
1104 {
1105     int nitems, nrows, ncols;
1106     if ( (nitems = CalcRowsCols(nrows, ncols)) == 0 )
1107         return;
1108
1109     wxPoint pt( GetPosition() );
1110     wxSize sz( GetSize() );
1111
1112     AdjustForGrowables(sz, m_calculatedMinSize, nrows, ncols);
1113
1114     sz = wxSize( pt.x + sz.x, pt.y + sz.y );
1115
1116     int x = pt.x;
1117     for (int c = 0; c < ncols; c++)
1118     {
1119         int y = pt.y;
1120         for (int r = 0; r < nrows; r++)
1121         {
1122             int i = r * ncols + c;
1123             if (i < nitems)
1124             {
1125                 wxSizerItemList::compatibility_iterator node = m_children.Item( i );
1126
1127                 wxASSERT_MSG( node, _T("Failed to find node") );
1128
1129                 int w = wxMax( 0, wxMin( m_colWidths[c], sz.x - x ) );
1130                 int h = wxMax( 0, wxMin( m_rowHeights[r], sz.y - y ) );
1131
1132                 SetItemBounds( node->GetData(), x, y, w, h);
1133             }
1134             if (m_rowHeights[r] != -1)
1135                 y = y + m_rowHeights[r] + m_vgap;
1136         }
1137         if (m_colWidths[c] != -1)
1138             x = x + m_colWidths[c] + m_hgap;
1139     }
1140 }
1141
1142 wxSize wxFlexGridSizer::CalcMin()
1143 {
1144     int     nrows,
1145             ncols;
1146     size_t  i, s;
1147
1148     // Number of rows/columns can change as items are added or removed.
1149     if ( !CalcRowsCols(nrows, ncols) )
1150         return wxSize(10, 10);
1151
1152     m_rowHeights.SetCount(nrows);
1153     m_colWidths.SetCount(ncols);
1154
1155     // We have to recalcuate the sizes in case the item minimum size has
1156     // changed since the previous layout, or the item has been hidden using
1157     // wxSizer::Show(). If all the items in a row/column are hidden, the final
1158     // dimension of the row/column will be -1, indicating that the column
1159     // itself is hidden.
1160     for( s = m_rowHeights.GetCount(), i = 0; i < s; ++i )
1161         m_rowHeights[ i ] = -1;
1162     for( s = m_colWidths.GetCount(), i = 0; i < s; ++i )
1163         m_colWidths[ i ] = -1;
1164
1165     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
1166
1167     i = 0;
1168     while (node)
1169     {
1170         wxSizerItem    *item = node->GetData();
1171         if ( item->IsShown() )
1172         {
1173             wxSize sz( item->CalcMin() );
1174             int row = i / ncols;
1175             int col = i % ncols;
1176
1177             m_rowHeights[ row ] = wxMax( wxMax( 0, sz.y ), m_rowHeights[ row ] );
1178             m_colWidths[ col ] = wxMax( wxMax( 0, sz.x ), m_colWidths[ col ] );
1179         }
1180
1181         node = node->GetNext();
1182         i++;
1183     }
1184
1185     AdjustForFlexDirection();
1186
1187     // Sum total minimum size, including gaps between rows/columns.
1188     // -1 is used as a magic number meaning empty column.
1189     int width = 0;
1190     for (int col = 0; col < ncols; col++)
1191         if ( m_colWidths[ col ] != -1 )
1192             width += m_colWidths[ col ] + m_hgap;
1193     if (width > 0)
1194         width -= m_hgap;
1195
1196     int height = 0;
1197     for (int row = 0; row < nrows; row++)
1198         if ( m_rowHeights[ row ] != -1 )
1199             height += m_rowHeights[ row ] + m_vgap;
1200     if (height > 0)
1201         height -= m_vgap;
1202
1203     m_calculatedMinSize = wxSize( width, height );
1204     return m_calculatedMinSize;
1205 }
1206
1207 void wxFlexGridSizer::AdjustForFlexDirection()
1208 {
1209     // the logic in CalcMin works when we resize flexibly in both directions
1210     // but maybe this is not the case
1211     if ( m_flexDirection != wxBOTH )
1212     {
1213         // select the array corresponding to the direction in which we do *not*
1214         // resize flexibly
1215         wxArrayInt& array = m_flexDirection == wxVERTICAL ? m_colWidths
1216                                                           : m_rowHeights;
1217
1218         const int count = array.GetCount();
1219
1220         // find the largest value in this array
1221         int n, largest = 0;
1222         for ( n = 0; n < count; ++n )
1223         {
1224             if ( array[n] > largest )
1225                 largest = array[n];
1226         }
1227
1228         // and now fill it with the largest value
1229         for ( n = 0; n < count; ++n )
1230         {
1231             array[n] = largest;
1232         }
1233     }
1234 }
1235
1236
1237 void wxFlexGridSizer::AdjustForGrowables(const wxSize& sz, const wxSize& minsz,
1238                                          int nrows, int ncols)
1239 {
1240     // what to do with the rows? by default, resize them proportionally
1241     if ( sz.y > minsz.y && ( (m_flexDirection & wxVERTICAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
1242     {
1243         int sum_proportions = 0;
1244         int growable_space = 0;
1245         int num = 0;
1246         size_t idx;
1247         for (idx = 0; idx < m_growableRows.GetCount(); idx++)
1248         {
1249             // Since the number of rows/columns can change as items are
1250             // inserted/deleted, we need to verify at runtime that the
1251             // requested growable rows/columns are still valid.
1252             if (m_growableRows[idx] >= nrows)
1253                 continue;
1254
1255             // If all items in a row/column are hidden, that row/column will
1256             // have a dimension of -1.  This causes the row/column to be
1257             // hidden completely.
1258             if (m_rowHeights[ m_growableRows[idx] ] == -1)
1259                 continue;
1260             sum_proportions += m_growableRowsProportions[idx];
1261             growable_space += m_rowHeights[ m_growableRows[idx] ];
1262             num++;
1263         }
1264
1265         if (num > 0)
1266         {
1267             for (idx = 0; idx < m_growableRows.GetCount(); idx++)
1268             {
1269                 if (m_growableRows[idx] >= nrows )
1270                     continue;
1271                 if (m_rowHeights[ m_growableRows[idx] ] == -1)
1272                     m_rowHeights[ m_growableRows[idx] ] = 0;
1273                 else
1274                 {
1275                     int delta = (sz.y - minsz.y);
1276                     if (sum_proportions == 0)
1277                         delta = (delta/num) + m_rowHeights[ m_growableRows[idx] ];
1278                     else
1279                         delta = ((delta+growable_space)*m_growableRowsProportions[idx]) / sum_proportions;
1280                     m_rowHeights[ m_growableRows[idx] ] = delta;
1281                 }
1282             }
1283         }
1284     }
1285     else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.y > minsz.y) )
1286     {
1287         // rounding problem?
1288         for ( int row = 0; row < nrows; ++row )
1289             m_rowHeights[ row ] = sz.y / nrows;
1290     }
1291
1292     // the same logic as above but for the columns
1293     if ( sz.x > minsz.x && ( (m_flexDirection & wxHORIZONTAL) || (m_growMode == wxFLEX_GROWMODE_SPECIFIED) ) )
1294     {
1295         int sum_proportions = 0;
1296         int growable_space = 0;
1297         int num = 0;
1298         size_t idx;
1299         for (idx = 0; idx < m_growableCols.GetCount(); idx++)
1300         {
1301             // Since the number of rows/columns can change as items are
1302             // inserted/deleted, we need to verify at runtime that the
1303             // requested growable rows/columns are still valid.
1304             if (m_growableCols[idx] >= ncols)
1305                 continue;
1306
1307             // If all items in a row/column are hidden, that row/column will
1308             // have a dimension of -1.  This causes the column to be hidden
1309             // completely.
1310             if (m_colWidths[ m_growableCols[idx] ] == -1)
1311                 continue;
1312             sum_proportions += m_growableColsProportions[idx];
1313             growable_space += m_colWidths[ m_growableCols[idx] ];
1314             num++;
1315         }
1316
1317         if (num > 0)
1318         {
1319             for (idx = 0; idx < m_growableCols.GetCount(); idx++)
1320             {
1321                 if (m_growableCols[idx] >= ncols )
1322                     continue;
1323                 if (m_colWidths[ m_growableCols[idx] ] == -1)
1324                     m_colWidths[ m_growableCols[idx] ] = 0;
1325                 else
1326                 {
1327                     int delta = (sz.x - minsz.x);
1328                     if (sum_proportions == 0)
1329                         delta = (delta/num) + m_colWidths[ m_growableCols[idx] ];
1330                     else
1331                         delta = ((delta+growable_space)*m_growableColsProportions[idx])/sum_proportions;
1332                     m_colWidths[ m_growableCols[idx] ] = delta;
1333                 }
1334             }
1335         }
1336     }
1337     else if ( (m_growMode == wxFLEX_GROWMODE_ALL) && (sz.x > minsz.x) )
1338     {
1339         for ( int col=0; col < ncols; ++col )
1340             m_colWidths[ col ] = sz.x / ncols;
1341     }
1342 }
1343
1344
1345 void wxFlexGridSizer::AddGrowableRow( size_t idx, int proportion )
1346 {
1347     m_growableRows.Add( idx );
1348     m_growableRowsProportions.Add( proportion );
1349 }
1350
1351 void wxFlexGridSizer::RemoveGrowableRow( size_t idx )
1352 {
1353     m_growableRows.Remove( idx );
1354 }
1355
1356 void wxFlexGridSizer::AddGrowableCol( size_t idx, int proportion )
1357 {
1358     m_growableCols.Add( idx );
1359     m_growableColsProportions.Add( proportion );
1360 }
1361
1362 void wxFlexGridSizer::RemoveGrowableCol( size_t idx )
1363 {
1364     m_growableCols.Remove( idx );
1365 }
1366
1367 //---------------------------------------------------------------------------
1368 // wxBoxSizer
1369 //---------------------------------------------------------------------------
1370
1371 wxBoxSizer::wxBoxSizer( int orient )
1372     : m_orient( orient )
1373 {
1374 }
1375
1376 void wxBoxSizer::RecalcSizes()
1377 {
1378     if (m_children.GetCount() == 0)
1379         return;
1380
1381     int delta = 0;
1382     if (m_stretchable)
1383     {
1384         if (m_orient == wxHORIZONTAL)
1385             delta = m_size.x - m_fixedWidth;
1386         else
1387             delta = m_size.y - m_fixedHeight;
1388     }
1389
1390     wxPoint pt( m_position );
1391
1392     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
1393     while (node)
1394     {
1395         wxSizerItem     *item = node->GetData();
1396
1397         if (item->IsShown())
1398         {
1399             wxSize size( item->GetMinSizeWithBorder() );
1400
1401             if (m_orient == wxVERTICAL)
1402             {
1403                 wxCoord height = size.y;
1404                 if (item->GetProportion())
1405                 {
1406                     // Because of at least one visible item has non-zero
1407                     // proportion then m_stretchable is not zero
1408                     height = (delta * item->GetProportion()) / m_stretchable;
1409                 }
1410
1411                 wxPoint child_pos( pt );
1412                 wxSize  child_size( size.x, height );
1413
1414                 if (item->GetFlag() & (wxEXPAND | wxSHAPED))
1415                     child_size.x = m_size.x;
1416                 else if (item->GetFlag() & wxALIGN_RIGHT)
1417                     child_pos.x += m_size.x - size.x;
1418                 else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_HORIZONTAL))
1419                 // XXX wxCENTER is added for backward compatibility;
1420                 //     wxALIGN_CENTER should be used in new code
1421                     child_pos.x += (m_size.x - size.x) / 2;
1422
1423                 item->SetDimension( child_pos, child_size );
1424
1425                 pt.y += height;
1426             }
1427             else
1428             {
1429                 wxCoord width = size.x;
1430                 if (item->GetProportion())
1431                 {
1432                     // Because of at least one visible item has non-zero
1433                     // proportion then m_stretchable is not zero
1434                     width = (delta * item->GetProportion()) / m_stretchable;
1435                 }
1436
1437                 wxPoint child_pos( pt );
1438                 wxSize  child_size( width, size.y );
1439
1440                 if (item->GetFlag() & (wxEXPAND | wxSHAPED))
1441                     child_size.y = m_size.y;
1442                 else if (item->GetFlag() & wxALIGN_BOTTOM)
1443                     child_pos.y += m_size.y - size.y;
1444                 else if (item->GetFlag() & (wxCENTER | wxALIGN_CENTER_VERTICAL))
1445                 // XXX wxCENTER is added for backward compatibility;
1446                 //     wxALIGN_CENTER should be used in new code
1447                     child_pos.y += (m_size.y - size.y) / 2;
1448
1449                 item->SetDimension( child_pos, child_size );
1450
1451                 pt.x += width;
1452             }
1453         }
1454
1455         node = node->GetNext();
1456     }
1457 }
1458
1459 wxSize wxBoxSizer::CalcMin()
1460 {
1461     if (m_children.GetCount() == 0)
1462         return wxSize(10,10);
1463
1464     m_stretchable = 0;
1465     m_minWidth = 0;
1466     m_minHeight = 0;
1467     m_fixedWidth = 0;
1468     m_fixedHeight = 0;
1469
1470     // precalc item minsizes and count proportions
1471     wxSizerItemList::compatibility_iterator node = m_children.GetFirst();
1472     while (node)
1473     {
1474         wxSizerItem *item = node->GetData();
1475
1476         if (item->IsShown())
1477             item->CalcMin();  // result is stored in the item
1478
1479         if (item->IsShown() && item->GetProportion() != 0)
1480             m_stretchable += item->GetProportion();
1481
1482         node = node->GetNext();
1483     }
1484
1485     // Total minimum size (width or height) of sizer
1486     int maxMinSize = 0;
1487
1488     node = m_children.GetFirst();
1489     while (node)
1490     {
1491         wxSizerItem *item = node->GetData();
1492
1493         if (item->IsShown() && item->GetProportion() != 0)
1494         {
1495             int stretch = item->GetProportion();
1496             wxSize size( item->GetMinSizeWithBorder() );
1497             int minSize;
1498
1499             // Integer division rounded up is (a + b - 1) / b
1500             // Round up needed in order to guarantee that all
1501             // all items will have size not less then their min size
1502             if (m_orient == wxHORIZONTAL)
1503                 minSize = ( size.x*m_stretchable + stretch - 1)/stretch;
1504             else
1505                 minSize = ( size.y*m_stretchable + stretch - 1)/stretch;
1506
1507             if (minSize > maxMinSize)
1508                 maxMinSize = minSize;
1509         }
1510         node = node->GetNext();
1511     }
1512
1513     // Calculate overall minimum size
1514     node = m_children.GetFirst();
1515     while (node)
1516     {
1517         wxSizerItem *item = node->GetData();
1518
1519         if (item->IsShown())
1520         {
1521             wxSize size( item->GetMinSizeWithBorder() );
1522             if (item->GetProportion() != 0)
1523             {
1524                 if (m_orient == wxHORIZONTAL)
1525                     size.x = (maxMinSize*item->GetProportion())/m_stretchable;
1526                 else
1527                     size.y = (maxMinSize*item->GetProportion())/m_stretchable;
1528             }
1529             else
1530             {
1531                 if (m_orient == wxVERTICAL)
1532                 {
1533                     m_fixedHeight += size.y;
1534                     m_fixedWidth = wxMax( m_fixedWidth, size.x );
1535                 }
1536                 else
1537                 {
1538                     m_fixedWidth += size.x;
1539                     m_fixedHeight = wxMax( m_fixedHeight, size.y );
1540                 }
1541             }
1542
1543             if (m_orient == wxHORIZONTAL)
1544             {
1545                 m_minWidth += size.x;
1546                 m_minHeight = wxMax( m_minHeight, size.y );
1547             }
1548             else
1549             {
1550                 m_minHeight += size.y;
1551                 m_minWidth = wxMax( m_minWidth, size.x );
1552             }
1553         }
1554         node = node->GetNext();
1555     }
1556
1557     return wxSize( m_minWidth, m_minHeight );
1558 }
1559
1560 //---------------------------------------------------------------------------
1561 // wxStaticBoxSizer
1562 //---------------------------------------------------------------------------
1563
1564 #if wxUSE_STATBOX
1565
1566 wxStaticBoxSizer::wxStaticBoxSizer( wxStaticBox *box, int orient )
1567     : wxBoxSizer( orient )
1568     , m_staticBox( box )
1569 {
1570     wxASSERT_MSG( box, wxT("wxStaticBoxSizer needs a static box") );
1571 }
1572
1573 static void GetStaticBoxBorders( wxStaticBox *box,
1574                                  int *borderTop,
1575                                  int *borderOther)
1576 {
1577     // this has to be done platform by platform as there is no way to
1578     // guess the thickness of a wxStaticBox border
1579 #ifdef __WXCOCOA__
1580     box->GetBordersForSizer(borderTop,borderOther);
1581 #elif defined(__WXMAC__)
1582
1583     static int extraTop = -1; // Uninitted
1584     static int other = 5;
1585
1586     if ( extraTop == -1 )
1587     {
1588         // The minimal border used for the top. Later on the staticbox'
1589         // font height is added to this.
1590         extraTop = 0;
1591
1592         if ( UMAGetSystemVersion() >= 0x1030 /*Panther*/ )
1593         {
1594             // As indicated by the HIG, Panther needs an extra border of 11
1595             // pixels (otherwise overlapping occurs at the top). The "other"
1596             // border has to be 11.
1597             extraTop = 11;
1598             other = 11;
1599         }
1600
1601     }
1602
1603     *borderTop = extraTop + box->GetCharHeight();
1604     *borderOther = other;
1605
1606 #else
1607 #ifdef __WXGTK__
1608     if ( box->GetLabel().empty() )
1609         *borderTop = 5;
1610     else
1611 #endif // __WXGTK__
1612         *borderTop = box->GetCharHeight();
1613
1614     *borderOther = 5;
1615 #endif // __WXCOCOA__
1616 }
1617
1618 void wxStaticBoxSizer::RecalcSizes()
1619 {
1620     int top_border, other_border;
1621     GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
1622
1623     m_staticBox->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
1624
1625     wxPoint old_pos( m_position );
1626     m_position.x += other_border;
1627     m_position.y += top_border;
1628     wxSize old_size( m_size );
1629     m_size.x -= 2*other_border;
1630     m_size.y -= top_border + other_border;
1631
1632     wxBoxSizer::RecalcSizes();
1633
1634     m_position = old_pos;
1635     m_size = old_size;
1636 }
1637
1638 wxSize wxStaticBoxSizer::CalcMin()
1639 {
1640     int top_border, other_border;
1641     GetStaticBoxBorders(m_staticBox, &top_border, &other_border);
1642
1643     wxSize ret( wxBoxSizer::CalcMin() );
1644     ret.x += 2*other_border;
1645     ret.y += other_border + top_border;
1646
1647     return ret;
1648 }
1649
1650 void wxStaticBoxSizer::ShowItems( bool show )
1651 {
1652     m_staticBox->Show( show );
1653     wxBoxSizer::ShowItems( show );
1654 }
1655
1656 #endif // wxUSE_STATBOX
1657
1658 #if wxUSE_BUTTON
1659
1660 wxStdDialogButtonSizer::wxStdDialogButtonSizer()
1661     : wxBoxSizer(wxHORIZONTAL)
1662 {
1663     bool is_pda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
1664
1665     // If we have a PDA screen, put yes/no button over
1666     // all other buttons, otherwise on the left side.
1667     if (is_pda)
1668         m_orient = wxVERTICAL;
1669
1670     m_buttonAffirmative = NULL;
1671     m_buttonApply = NULL;
1672     m_buttonNegative = NULL;
1673     m_buttonCancel = NULL;
1674     m_buttonHelp = NULL;
1675 }
1676
1677 void wxStdDialogButtonSizer::AddButton(wxButton *mybutton)
1678 {
1679     switch (mybutton->GetId())
1680     {
1681         case wxID_OK:
1682         case wxID_YES:
1683         case wxID_SAVE:
1684             m_buttonAffirmative = mybutton;
1685             break;
1686         case wxID_APPLY:
1687             m_buttonApply = mybutton;
1688             break;
1689         case wxID_NO:
1690             m_buttonNegative = mybutton;
1691             break;
1692         case wxID_CANCEL:
1693             m_buttonCancel = mybutton;
1694             break;
1695         case wxID_HELP:
1696             m_buttonHelp = mybutton;
1697             break;
1698         default:
1699             break;
1700     }
1701 }
1702
1703 void wxStdDialogButtonSizer::SetAffirmativeButton( wxButton *button )
1704 {
1705     m_buttonAffirmative = button;
1706 }
1707
1708 void wxStdDialogButtonSizer::SetNegativeButton( wxButton *button )
1709 {
1710     m_buttonNegative = button;
1711 }
1712
1713 void wxStdDialogButtonSizer::SetCancelButton( wxButton *button )
1714 {
1715     m_buttonCancel = button;
1716 }
1717
1718 void wxStdDialogButtonSizer::Finalise()
1719 {
1720 #ifdef __WXMAC__
1721         Add(0, 0, 0, wxLEFT, 6);
1722         if (m_buttonHelp)
1723             Add((wxWindow*)m_buttonHelp, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 6);
1724
1725         if (m_buttonNegative){
1726             // HIG POLICE BULLETIN - destructive buttons need extra padding
1727             // 24 pixels on either side
1728             Add((wxWindow*)m_buttonNegative, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 12);
1729         }
1730
1731         // extra whitespace between help/negative and cancel/ok buttons
1732         Add(0, 0, 1, wxEXPAND, 0);
1733
1734         if (m_buttonCancel){
1735             Add((wxWindow*)m_buttonCancel, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 6);
1736             // Cancel or help should be default
1737             // m_buttonCancel->SetDefaultButton();
1738         }
1739
1740         // Ugh, Mac doesn't really have apply dialogs, so I'll just
1741         // figure the best place is between Cancel and OK
1742         if (m_buttonApply)
1743             Add((wxWindow*)m_buttonApply, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 6);
1744
1745         if (m_buttonAffirmative){
1746             Add((wxWindow*)m_buttonAffirmative, 0, wxALIGN_CENTRE | wxLEFT, 6);
1747
1748             if (m_buttonAffirmative->GetId() == wxID_SAVE){
1749                 // these buttons have set labels under Mac so we should use them
1750                 m_buttonAffirmative->SetLabel(_("Save"));
1751                 m_buttonNegative->SetLabel(_("Don't Save"));
1752             }
1753         }
1754
1755         // Extra space around and at the right
1756         Add(12, 24);
1757 #elif defined(__WXGTK20__)
1758         Add(0, 0, 0, wxLEFT, 9);
1759         if (m_buttonHelp)
1760             Add((wxWindow*)m_buttonHelp, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
1761
1762         // extra whitespace between help and cancel/ok buttons
1763         Add(0, 0, 1, wxEXPAND, 0);
1764
1765         if (m_buttonNegative){
1766             Add((wxWindow*)m_buttonNegative, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
1767         }
1768
1769         if (m_buttonCancel){
1770             Add((wxWindow*)m_buttonCancel, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
1771             // Cancel or help should be default
1772             // m_buttonCancel->SetDefaultButton();
1773         }
1774
1775         if (m_buttonApply)
1776             Add((wxWindow*)m_buttonApply, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, 3);
1777
1778         if (m_buttonAffirmative)
1779             Add((wxWindow*)m_buttonAffirmative, 0, wxALIGN_CENTRE | wxLEFT, 6);
1780 #else
1781     // do the same thing for GTK1 and Windows platforms
1782     // and assume any platform not accounted for here will use
1783     // Windows style
1784         Add(0, 0, 0, wxLEFT, 9);
1785         if (m_buttonHelp)
1786             Add((wxWindow*)m_buttonHelp, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, m_buttonHelp->ConvertDialogToPixels(wxSize(4, 0)).x);
1787
1788         // extra whitespace between help and cancel/ok buttons
1789         Add(0, 0, 1, wxEXPAND, 0);
1790
1791         if (m_buttonApply)
1792             Add((wxWindow*)m_buttonApply, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, m_buttonApply->ConvertDialogToPixels(wxSize(4, 0)).x);
1793
1794         if (m_buttonAffirmative){
1795             Add((wxWindow*)m_buttonAffirmative, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, m_buttonAffirmative->ConvertDialogToPixels(wxSize(4, 0)).x);
1796         }
1797
1798         if (m_buttonNegative){
1799             Add((wxWindow*)m_buttonNegative, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, m_buttonNegative->ConvertDialogToPixels(wxSize(4, 0)).x);
1800         }
1801
1802         if (m_buttonCancel){
1803             Add((wxWindow*)m_buttonCancel, 0, wxALIGN_CENTRE | wxLEFT, m_buttonCancel->ConvertDialogToPixels(wxSize(4, 0)).x);
1804             // Cancel or help should be default
1805             // m_buttonCancel->SetDefaultButton();
1806         }
1807
1808 #endif
1809 }
1810
1811 #endif // wxUSE_BUTTON
1812
1813 #if WXWIN_COMPATIBILITY_2_4
1814
1815 // ----------------------------------------------------------------------------
1816 // wxNotebookSizer
1817 // ----------------------------------------------------------------------------
1818
1819 #if wxUSE_BOOKCTRL
1820 IMPLEMENT_CLASS(wxBookCtrlSizer, wxSizer)
1821 #if wxUSE_NOTEBOOK
1822 IMPLEMENT_CLASS(wxNotebookSizer, wxBookCtrlSizer)
1823 #endif // wxUSE_NOTEBOOK
1824 #endif // wxUSE_BOOKCTRL
1825
1826 #if wxUSE_BOOKCTRL
1827
1828 wxBookCtrlSizer::wxBookCtrlSizer(wxBookCtrlBase *bookctrl)
1829                : m_bookctrl(bookctrl)
1830 {
1831     wxASSERT_MSG( bookctrl, wxT("wxBookCtrlSizer needs a control") );
1832 }
1833
1834 void wxBookCtrlSizer::RecalcSizes()
1835 {
1836     m_bookctrl->SetSize( m_position.x, m_position.y, m_size.x, m_size.y );
1837 }
1838
1839 wxSize wxBookCtrlSizer::CalcMin()
1840 {
1841     wxSize sizeBorder = m_bookctrl->CalcSizeFromPage(wxSize(0, 0));
1842
1843     sizeBorder.x += 5;
1844     sizeBorder.y += 5;
1845
1846     if ( m_bookctrl->GetPageCount() == 0 )
1847     {
1848         return wxSize(sizeBorder.x + 10, sizeBorder.y + 10);
1849     }
1850
1851     int maxX = 0;
1852     int maxY = 0;
1853
1854     wxWindowList::compatibility_iterator
1855         node = m_bookctrl->GetChildren().GetFirst();
1856     while (node)
1857     {
1858         wxWindow *item = node->GetData();
1859         wxSizer *itemsizer = item->GetSizer();
1860
1861         if (itemsizer)
1862         {
1863             wxSize subsize( itemsizer->CalcMin() );
1864
1865             if (subsize.x > maxX)
1866                 maxX = subsize.x;
1867             if (subsize.y > maxY)
1868                 maxY = subsize.y;
1869         }
1870
1871         node = node->GetNext();
1872     }
1873
1874     return wxSize( maxX, maxY ) + sizeBorder;
1875 }
1876
1877 #if wxUSE_NOTEBOOK
1878
1879 wxNotebookSizer::wxNotebookSizer(wxNotebook *nb)
1880 {
1881     wxASSERT_MSG( nb, wxT("wxNotebookSizer needs a control") );
1882     m_bookctrl = nb;
1883 }
1884
1885 #endif // wxUSE_NOTEBOOOK
1886 #endif // wxUSE_BOOKCTRL
1887
1888 #endif // WXWIN_COMPATIBILITY_2_4