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