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