src/generic/notebook.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/notebook.cpp
   3 // Purpose:     generic implementation of wxNotebook
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_NOTEBOOK
  28
  29 #include  "wx/notebook.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include  "wx/dcclient.h"
  35     #include  "wx/settings.h"
  36 #endif
  37
  38 #include  "wx/imaglist.h"
  39 #include  "wx/generic/tabg.h"
  40
  41 // ----------------------------------------------------------------------------
  42 // macros
  43 // ----------------------------------------------------------------------------
  44
  45 // check that the page index is valid
  46 #define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
  47
  48 // ----------------------------------------------------------------------------
  49 // event table
  50 // ----------------------------------------------------------------------------
  51
  52 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  53 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  54
  55 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  56     EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, wxNotebook::OnSelChange)
  57     EVT_SIZE(wxNotebook::OnSize)
  58     EVT_PAINT(wxNotebook::OnPaint)
  59     EVT_MOUSE_EVENTS(wxNotebook::OnMouseEvent)
  60     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  61     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  62 END_EVENT_TABLE()
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  65 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)
  66
  67 // ============================================================================
  68 // implementation
  69 // ============================================================================
  70
  71 // ============================================================================
  72 // Private class
  73 // ============================================================================
  74
  75 WX_DECLARE_HASH_MAP(int, wxNotebookPage*, wxIntegerHash, wxIntegerEqual,
  76                     wxIntToNotebookPageHashMap);
  77
  78 WX_DECLARE_HASH_MAP(wxNotebookPage*, int, wxPointerHash, wxPointerEqual,
  79                     wxNotebookPageToIntHashMap);
  80
  81 // This reuses wxTabView to draw the tabs.
  82 class WXDLLEXPORT wxNotebookTabView: public wxTabView
  83 {
  84 DECLARE_DYNAMIC_CLASS(wxNotebookTabView)
  85 public:
  86     wxNotebookTabView(wxNotebook* notebook, long style = wxTAB_STYLE_DRAW_BOX | wxTAB_STYLE_COLOUR_INTERIOR);
  87     virtual ~wxNotebookTabView(void);
  88
  89     // Called when a tab is activated
  90     virtual void OnTabActivate(int activateId, int deactivateId);
  91     // Allows vetoing
  92     virtual bool OnTabPreActivate(int activateId, int deactivateId);
  93
  94     // map integer ids used by wxTabView to wxNotebookPage pointers
  95     int GetId(wxNotebookPage *page);
  96     wxNotebookPage *GetPage(int id) { return m_idToPage[id]; }
  97
  98 protected:
  99     wxNotebook* m_notebook;
 100
 101 private:
 102     wxIntToNotebookPageHashMap m_idToPage;
 103     wxNotebookPageToIntHashMap m_pageToId;
 104     int m_nextid;
 105 };
 106
 107 static int GetPageId(wxTabView *tabview, wxNotebookPage *page)
 108 {
 109     return wx_static_cast(wxNotebookTabView*, tabview)->GetId(page);
 110 }
 111
 112 // ----------------------------------------------------------------------------
 113 // wxNotebook construction
 114 // ----------------------------------------------------------------------------
 115
 116 // common part of all ctors
 117 void wxNotebook::Init()
 118 {
 119     m_tabView = (wxNotebookTabView*) NULL;
 120     m_nSelection = -1;
 121 }
 122
 123 // default for dynamic class
 124 wxNotebook::wxNotebook()
 125 {
 126     Init();
 127 }
 128
 129 // the same arguments as for wxControl
 130 wxNotebook::wxNotebook(wxWindow *parent,
 131                        wxWindowID id,
 132                        const wxPoint& pos,
 133                        const wxSize& size,
 134                        long style,
 135                        const wxString& name)
 136 {
 137     Init();
 138
 139     Create(parent, id, pos, size, style, name);
 140 }
 141
 142 // Create() function
 143 bool wxNotebook::Create(wxWindow *parent,
 144                         wxWindowID id,
 145                         const wxPoint& pos,
 146                         const wxSize& size,
 147                         long style,
 148                         const wxString& name)
 149 {
 150     // base init
 151     SetName(name);
 152
 153     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 154         style |= wxBK_TOP;
 155
 156     m_windowId = id == wxID_ANY ? NewControlId() : id;
 157
 158     if (!wxControl::Create(parent, id, pos, size, style|wxNO_BORDER, wxDefaultValidator, name))
 159         return false;
 160
 161     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 162
 163     SetTabView(new wxNotebookTabView(this));
 164
 165     return true;
 166 }
 167
 168 // dtor
 169 wxNotebook::~wxNotebook()
 170 {
 171     delete m_tabView;
 172 }
 173
 174 // ----------------------------------------------------------------------------
 175 // wxNotebook accessors
 176 // ----------------------------------------------------------------------------
 177 int wxNotebook::GetRowCount() const
 178 {
 179     // TODO
 180     return 0;
 181 }
 182
 183 int wxNotebook::SetSelection(size_t nPage)
 184 {
 185     wxASSERT( IS_VALID_PAGE(nPage) );
 186
 187     wxNotebookPage* pPage = GetPage(nPage);
 188
 189     m_tabView->SetTabSelection(GetPageId(m_tabView, pPage));
 190
 191     // TODO
 192     return 0;
 193 }
 194
 195 int wxNotebook::ChangeSelection(size_t nPage)
 196 {
 197     // FIXME: currently it does generate events too
 198     return SetSelection(nPage);
 199 }
 200
 201 #if 0
 202 void wxNotebook::AdvanceSelection(bool bForward)
 203 {
 204     int nSel = GetSelection();
 205     int nMax = GetPageCount() - 1;
 206     if ( bForward )
 207         SetSelection(nSel == nMax ? 0 : nSel + 1);
 208     else
 209         SetSelection(nSel == 0 ? nMax : nSel - 1);
 210 }
 211 #endif
 212
 213 bool wxNotebook::SetPageText(size_t nPage, const wxString& strText)
 214 {
 215     wxASSERT( IS_VALID_PAGE(nPage) );
 216
 217     wxNotebookPage* page = GetPage(nPage);
 218     if (page)
 219     {
 220         m_tabView->SetTabText(GetPageId(m_tabView, page), strText);
 221         Refresh();
 222         return true;
 223     }
 224
 225     return false;
 226 }
 227
 228 wxString wxNotebook::GetPageText(size_t nPage) const
 229 {
 230     wxASSERT( IS_VALID_PAGE(nPage) );
 231
 232     wxNotebookPage* page = ((wxNotebook*)this)->GetPage(nPage);
 233     if (page)
 234         return m_tabView->GetTabText(GetPageId(m_tabView, page));
 235     else
 236         return wxEmptyString;
 237 }
 238
 239 int wxNotebook::GetPageImage(size_t WXUNUSED_UNLESS_DEBUG(nPage)) const
 240 {
 241     wxASSERT( IS_VALID_PAGE(nPage) );
 242
 243     // TODO
 244     return 0;
 245 }
 246
 247 bool wxNotebook::SetPageImage(size_t WXUNUSED_UNLESS_DEBUG(nPage),
 248                               int WXUNUSED(nImage))
 249 {
 250     wxASSERT( IS_VALID_PAGE(nPage) );
 251
 252     // TODO
 253     return false;
 254 }
 255
 256 // set the size (the same for all pages)
 257 void wxNotebook::SetPageSize(const wxSize& WXUNUSED(size))
 258 {
 259     // TODO
 260 }
 261
 262 // set the padding between tabs (in pixels)
 263 void wxNotebook::SetPadding(const wxSize& WXUNUSED(padding))
 264 {
 265     // TODO
 266 }
 267
 268 // set the size of the tabs for wxNB_FIXEDWIDTH controls
 269 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 270 {
 271     // TODO
 272 }
 273
 274 // ----------------------------------------------------------------------------
 275 // wxNotebook operations
 276 // ----------------------------------------------------------------------------
 277
 278 // remove one page from the notebook and delete it
 279 bool wxNotebook::DeletePage(size_t nPage)
 280 {
 281     wxCHECK( IS_VALID_PAGE(nPage), false );
 282
 283     if (m_nSelection != -1)
 284     {
 285         m_pages[m_nSelection]->Show(false);
 286         m_pages[m_nSelection]->Lower();
 287     }
 288
 289     wxNotebookPage* pPage = GetPage(nPage);
 290
 291     m_tabView->RemoveTab(GetPageId(m_tabView, pPage));
 292
 293     m_pages.Remove(pPage);
 294     delete pPage;
 295
 296     if (m_pages.GetCount() == 0)
 297     {
 298         m_nSelection = -1;
 299         m_tabView->SetTabSelection(-1, false);
 300     }
 301     else if (m_nSelection > -1)
 302     {
 303         m_nSelection = -1;
 304
 305         m_tabView->SetTabSelection(GetPageId(m_tabView, GetPage(0)), false);
 306
 307         if (m_nSelection != 0)
 308             ChangePage(-1, 0);
 309     }
 310
 311     RefreshLayout(false);
 312
 313     return true;
 314 }
 315
 316 bool wxNotebook::DeletePage(wxNotebookPage* page)
 317 {
 318     int pagePos = FindPagePosition(page);
 319     if (pagePos > -1)
 320         return DeletePage(pagePos);
 321     else
 322         return false;
 323 }
 324
 325 bool wxNotebook::RemovePage(size_t nPage)
 326 {
 327     return DoRemovePage(nPage) != NULL;
 328 }
 329
 330 // remove one page from the notebook
 331 wxWindow* wxNotebook::DoRemovePage(size_t nPage)
 332 {
 333     wxCHECK( IS_VALID_PAGE(nPage), NULL );
 334
 335     m_pages[nPage]->Show(false);
 336     //    m_pages[nPage]->Lower();
 337
 338     wxNotebookPage* pPage = GetPage(nPage);
 339
 340     m_tabView->RemoveTab(GetPageId(m_tabView, pPage));
 341
 342     m_pages.Remove(pPage);
 343
 344     if (m_pages.GetCount() == 0)
 345     {
 346       m_nSelection = -1;
 347       m_tabView->SetTabSelection(-1, true);
 348     }
 349     else if (m_nSelection > -1)
 350     {
 351       // Only change the selection if the page we
 352       // deleted was the selection.
 353       if (nPage == (size_t)m_nSelection)
 354       {
 355          m_nSelection = -1;
 356          // Select the first tab. Generates a ChangePage.
 357          m_tabView->SetTabSelection(0, true);
 358       }
 359       else
 360       {
 361         // We must adjust which tab we think is selected.
 362         // If greater than the page we deleted, it must be moved down
 363         // a notch.
 364         if (size_t(m_nSelection) > nPage)
 365           m_nSelection -- ;
 366       }
 367     }
 368
 369     RefreshLayout(false);
 370
 371     return pPage;
 372 }
 373
 374 bool wxNotebook::RemovePage(wxNotebookPage* page)
 375 {
 376     int pagePos = FindPagePosition(page);
 377     if (pagePos > -1)
 378         return RemovePage(pagePos);
 379     else
 380         return false;
 381 }
 382
 383 // Find the position of the wxNotebookPage, -1 if not found.
 384 int wxNotebook::FindPagePosition(wxNotebookPage* page) const
 385 {
 386     size_t nPageCount = GetPageCount();
 387     size_t nPage;
 388     for ( nPage = 0; nPage < nPageCount; nPage++ )
 389         if (m_pages[nPage] == page)
 390             return nPage;
 391     return -1;
 392 }
 393
 394 // remove all pages
 395 bool wxNotebook::DeleteAllPages()
 396 {
 397     m_tabView->ClearTabs(true);
 398
 399     size_t nPageCount = GetPageCount();
 400     size_t nPage;
 401     for ( nPage = 0; nPage < nPageCount; nPage++ )
 402         delete m_pages[nPage];
 403
 404     m_pages.Clear();
 405
 406     return true;
 407 }
 408
 409 // same as AddPage() but does it at given position
 410 bool wxNotebook::InsertPage(size_t nPage,
 411                             wxNotebookPage *pPage,
 412                             const wxString& strText,
 413                             bool bSelect,
 414                             int WXUNUSED(imageId))
 415 {
 416     wxASSERT( pPage != NULL );
 417     wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), false );
 418
 419     m_tabView->AddTab(GetPageId(m_tabView, pPage), strText);
 420
 421     if (!bSelect)
 422       pPage->Show(false);
 423
 424     // save the pointer to the page
 425     m_pages.Insert(pPage, nPage);
 426
 427     if (bSelect)
 428     {
 429         // This will cause ChangePage to be called, via OnSelPage
 430
 431         m_tabView->SetTabSelection(GetPageId(m_tabView, pPage), true);
 432     }
 433
 434     // some page must be selected: either this one or the first one if there is
 435     // still no selection
 436     if ( m_nSelection == -1 )
 437       ChangePage(-1, 0);
 438
 439     RefreshLayout(false);
 440
 441     return true;
 442 }
 443
 444 // ----------------------------------------------------------------------------
 445 // wxNotebook callbacks
 446 // ----------------------------------------------------------------------------
 447
 448 // @@@ OnSize() is used for setting the font when it's called for the first
 449 //     time because doing it in ::Create() doesn't work (for unknown reasons)
 450 void wxNotebook::OnSize(wxSizeEvent& event)
 451 {
 452     static bool s_bFirstTime = true;
 453     if ( s_bFirstTime ) {
 454         // TODO: any first-time-size processing.
 455         s_bFirstTime = false;
 456     }
 457
 458     RefreshLayout();
 459
 460     // Processing continues to next OnSize
 461     event.Skip();
 462 }
 463
 464 // This was supposed to cure the non-display of the notebook
 465 // until the user resizes the window.
 466 // What's going on?
 467 void wxNotebook::OnInternalIdle()
 468 {
 469     wxWindow::OnInternalIdle();
 470
 471 #if 0
 472     static bool s_bFirstTime = true;
 473     if ( s_bFirstTime ) {
 474       /*
 475       wxSize sz(GetSize());
 476       sz.x ++;
 477       SetSize(sz);
 478       sz.x --;
 479       SetSize(sz);
 480       */
 481
 482       /*
 483       wxSize sz(GetSize());
 484       wxSizeEvent sizeEvent(sz, GetId());
 485       sizeEvent.SetEventObject(this);
 486       GetEventHandler()->ProcessEvent(sizeEvent);
 487       Refresh();
 488       */
 489       s_bFirstTime = false;
 490     }
 491 #endif
 492 }
 493
 494 // Implementation: calculate the layout of the view rect
 495 // and resize the children if required
 496 bool wxNotebook::RefreshLayout(bool force)
 497 {
 498     if (m_tabView)
 499     {
 500         wxRect oldRect = m_tabView->GetViewRect();
 501
 502         int cw, ch;
 503         GetClientSize(& cw, & ch);
 504
 505         int tabHeight = m_tabView->GetTotalTabHeight();
 506         wxRect rect;
 507         rect.x = 4;
 508         rect.y = tabHeight + 4;
 509         rect.width = cw - 8;
 510         rect.height = ch - 4 - rect.y ;
 511
 512         m_tabView->SetViewRect(rect);
 513
 514         m_tabView->LayoutTabs();
 515
 516         // Need to do it a 2nd time to get the tab height with
 517         // the new view width, since changing the view width changes the
 518         // tab layout.
 519         tabHeight = m_tabView->GetTotalTabHeight();
 520         rect.x = 4;
 521         rect.y = tabHeight + 4;
 522         rect.width = cw - 8;
 523         rect.height = ch - 4 - rect.y ;
 524
 525         m_tabView->SetViewRect(rect);
 526
 527         m_tabView->LayoutTabs();
 528
 529         if (!force && (rect == oldRect))
 530           return false;
 531
 532         // fit the notebook page to the tab control's display area
 533
 534         size_t nCount = m_pages.Count();
 535         for ( size_t nPage = 0; nPage < nCount; nPage++ ) {
 536             wxNotebookPage *pPage = m_pages[nPage];
 537             wxRect clientRect = GetAvailableClientSize();
 538             if (pPage->IsShown())
 539             {
 540                 pPage->SetSize(clientRect.x, clientRect.y, clientRect.width, clientRect.height);
 541                 if ( pPage->GetAutoLayout() )
 542                    pPage->Layout();
 543             }
 544         }
 545         Refresh();
 546     }
 547     return true;
 548 }
 549
 550 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 551 {
 552     // is it our tab control?
 553     if ( event.GetEventObject() == this )
 554     {
 555         if (event.GetSelection() != m_nSelection)
 556           ChangePage(event.GetOldSelection(), event.GetSelection());
 557     }
 558
 559     // we want to give others a chance to process this message as well
 560     event.Skip();
 561 }
 562
 563 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 564 {
 565     // set focus to the currently selected page if any
 566     if ( m_nSelection != -1 )
 567         m_pages[m_nSelection]->SetFocus();
 568
 569     event.Skip();
 570 }
 571
 572 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 573 {
 574     if ( event.IsWindowChange() ) {
 575         // change pages
 576         AdvanceSelection(event.GetDirection());
 577     }
 578     else {
 579         // pass to the parent
 580         if ( GetParent() ) {
 581             event.SetCurrentFocus(this);
 582             GetParent()->ProcessEvent(event);
 583         }
 584     }
 585 }
 586
 587 // ----------------------------------------------------------------------------
 588 // wxNotebook base class virtuals
 589 // ----------------------------------------------------------------------------
 590
 591 // override these 2 functions to do nothing: everything is done in OnSize
 592
 593 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 594 {
 595     // don't set the sizes of the pages - their correct size is not yet known
 596     wxControl::SetConstraintSizes(false);
 597 }
 598
 599 bool wxNotebook::DoPhase(int /* nPhase */)
 600 {
 601     return true;
 602 }
 603
 604 void wxNotebook::Command(wxCommandEvent& WXUNUSED(event))
 605 {
 606     wxFAIL_MSG(wxT("wxNotebook::Command not implemented"));
 607 }
 608
 609 // ----------------------------------------------------------------------------
 610 // wxNotebook helper functions
 611 // ----------------------------------------------------------------------------
 612
 613 // hide the currently active panel and show the new one
 614 void wxNotebook::ChangePage(int nOldSel, int nSel)
 615 {
 616   //  cout << "ChangePage: " << nOldSel << ", " << nSel << "\n";
 617     wxASSERT( nOldSel != nSel ); // impossible
 618
 619     if ( nOldSel != -1 ) {
 620         m_pages[nOldSel]->Show(false);
 621         m_pages[nOldSel]->Lower();
 622     }
 623
 624     wxNotebookPage *pPage = m_pages[nSel];
 625
 626     wxRect clientRect = GetAvailableClientSize();
 627     pPage->SetSize(clientRect.x, clientRect.y, clientRect.width, clientRect.height);
 628
 629     Refresh();
 630
 631     pPage->Show(true);
 632     pPage->Raise();
 633     pPage->SetFocus();
 634
 635     m_nSelection = nSel;
 636 }
 637
 638 void wxNotebook::OnMouseEvent(wxMouseEvent& event)
 639 {
 640   if (m_tabView)
 641     m_tabView->OnEvent(event);
 642 }
 643
 644 void wxNotebook::OnPaint(wxPaintEvent& WXUNUSED(event) )
 645 {
 646     wxPaintDC dc(this);
 647     if (m_tabView)
 648         m_tabView->Draw(dc);
 649 }
 650
 651 wxSize wxNotebook::CalcSizeFromPage(const wxSize& sizePage) const
 652 {
 653     // MBN: since the total tab height is really a function of the
 654     // width, this should really call
 655     // GetTotalTabHeightPretendingWidthIs(), but the current
 656     // implementation will suffice, provided the wxNotebook has been
 657     // created with a sensible initial width.
 658     return wxSize( sizePage.x + 12,
 659                    sizePage.y + m_tabView->GetTotalTabHeight() + 6 + 4 );
 660 }
 661
 662 wxRect wxNotebook::GetAvailableClientSize()
 663 {
 664     int cw, ch;
 665     GetClientSize(& cw, & ch);
 666
 667     int tabHeight = m_tabView->GetTotalTabHeight();
 668
 669     // TODO: these margins should be configurable.
 670     wxRect rect;
 671     rect.x = 6;
 672     rect.y = tabHeight + 6;
 673     rect.width = cw - 12;
 674     rect.height = ch - 4 - rect.y ;
 675
 676     return rect;
 677 }
 678
 679 /*
 680  * wxNotebookTabView
 681  */
 682
 683 IMPLEMENT_CLASS(wxNotebookTabView, wxTabView)
 684
 685 wxNotebookTabView::wxNotebookTabView(wxNotebook *notebook, long style)
 686     : wxTabView(style), m_nextid(1)
 687 {
 688   m_notebook = notebook;
 689
 690   m_notebook->SetTabView(this);
 691
 692   SetWindow(m_notebook);
 693 }
 694
 695 wxNotebookTabView::~wxNotebookTabView(void)
 696 {
 697 }
 698
 699 int wxNotebookTabView::GetId(wxNotebookPage *page)
 700 {
 701     int& id = m_pageToId[page];
 702
 703     if (!id)
 704     {
 705         id = m_nextid++;
 706         m_idToPage[id] = page;
 707     }
 708
 709     return id;
 710 }
 711
 712 // Called when a tab is activated
 713 void wxNotebookTabView::OnTabActivate(int activateId, int deactivateId)
 714 {
 715   if (!m_notebook)
 716     return;
 717
 718   wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, m_notebook->GetId());
 719
 720   // Translate from wxTabView's ids (which aren't position-dependent)
 721   // to wxNotebook's (which are).
 722   wxNotebookPage* pActive = GetPage(activateId);
 723   wxNotebookPage* pDeactive = GetPage(deactivateId);
 724
 725   int activatePos = m_notebook->FindPagePosition(pActive);
 726   int deactivatePos = m_notebook->FindPagePosition(pDeactive);
 727
 728   event.SetEventObject(m_notebook);
 729   event.SetSelection(activatePos);
 730   event.SetOldSelection(deactivatePos);
 731   m_notebook->GetEventHandler()->ProcessEvent(event);
 732 }
 733
 734 // Allows Vetoing
 735 bool wxNotebookTabView::OnTabPreActivate(int activateId, int deactivateId)
 736 {
 737   bool retval = true;
 738
 739   if (m_notebook)
 740   {
 741     wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_notebook->GetId());
 742
 743     // Translate from wxTabView's ids (which aren't position-dependent)
 744     // to wxNotebook's (which are).
 745     wxNotebookPage* pActive = GetPage(activateId);
 746     wxNotebookPage* pDeactive = GetPage(deactivateId);
 747
 748     int activatePos = m_notebook->FindPagePosition(pActive);
 749     int deactivatePos = m_notebook->FindPagePosition(pDeactive);
 750
 751     event.SetEventObject(m_notebook);
 752     event.SetSelection(activatePos);
 753     event.SetOldSelection(deactivatePos);
 754     if (m_notebook->GetEventHandler()->ProcessEvent(event))
 755     {
 756       retval = event.IsAllowed();
 757     }
 758   }
 759   return retval;
 760 }
 761
 762 #endif // wxUSE_NOTEBOOK