src/aui/tabmdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/aui/tabmdi.cpp
   3 // Purpose:     Generic MDI (Multiple Document Interface) classes
   4 // Author:      Hans Van Leemputten
   5 // Modified by: Benjamin I. Williams / Kirix Corporation
   6 // Created:     29/07/2002
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Hans Van Leemputten
   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_AUI
  28 #if wxUSE_MDI
  29
  30 #include "wx/aui/tabmdi.h"
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/panel.h"
  34     #include "wx/menu.h"
  35     #include "wx/intl.h"
  36     #include "wx/log.h"
  37     #include "wx/settings.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/stockitem.h"
  41
  42 enum MDI_MENU_ID
  43 {
  44     wxWINDOWCLOSE = 4001,
  45     wxWINDOWCLOSEALL,
  46     wxWINDOWNEXT,
  47     wxWINDOWPREV
  48 };
  49
  50 //-----------------------------------------------------------------------------
  51 // wxAuiMDIParentFrame
  52 //-----------------------------------------------------------------------------
  53
  54 IMPLEMENT_DYNAMIC_CLASS(wxAuiMDIParentFrame, wxFrame)
  55
  56 BEGIN_EVENT_TABLE(wxAuiMDIParentFrame, wxFrame)
  57 #if wxUSE_MENUS
  58     EVT_MENU (wxID_ANY, wxAuiMDIParentFrame::DoHandleMenu)
  59 #endif
  60 END_EVENT_TABLE()
  61
  62 wxAuiMDIParentFrame::wxAuiMDIParentFrame()
  63 {
  64     Init();
  65 }
  66
  67 wxAuiMDIParentFrame::wxAuiMDIParentFrame(wxWindow *parent,
  68                                          wxWindowID id,
  69                                          const wxString& title,
  70                                          const wxPoint& pos,
  71                                          const wxSize& size,
  72                                          long style,
  73                                          const wxString& name)
  74 {
  75     Init();
  76     (void)Create(parent, id, title, pos, size, style, name);
  77 }
  78
  79 wxAuiMDIParentFrame::~wxAuiMDIParentFrame()
  80 {
  81     // Make sure the client window is destructed before the menu bars are!
  82     wxDELETE(m_pClientWindow);
  83
  84 #if wxUSE_MENUS
  85     RemoveWindowMenu(GetMenuBar());
  86     delete m_pWindowMenu;
  87 #endif // wxUSE_MENUS
  88 }
  89
  90 bool wxAuiMDIParentFrame::Create(wxWindow *parent,
  91                                  wxWindowID id,
  92                                  const wxString& title,
  93                                  const wxPoint& pos,
  94                                  const wxSize& size,
  95                                  long style,
  96                                  const wxString& name)
  97 {
  98 #if wxUSE_MENUS
  99     // this style can be used to prevent a window from having the standard MDI
 100     // "Window" menu
 101     if (!(style & wxFRAME_NO_WINDOW_MENU))
 102     {
 103         m_pWindowMenu = new wxMenu;
 104         m_pWindowMenu->Append(wxWINDOWCLOSE,    _("Cl&ose"));
 105         m_pWindowMenu->Append(wxWINDOWCLOSEALL, _("Close All"));
 106         m_pWindowMenu->AppendSeparator();
 107         m_pWindowMenu->Append(wxWINDOWNEXT,     _("&Next"));
 108         m_pWindowMenu->Append(wxWINDOWPREV,     _("&Previous"));
 109     }
 110 #endif // wxUSE_MENUS
 111
 112     wxFrame::Create(parent, id, title, pos, size, style, name);
 113     OnCreateClient();
 114     return true;
 115 }
 116
 117
 118 void wxAuiMDIParentFrame::SetArtProvider(wxAuiTabArt* provider)
 119 {
 120     if (m_pClientWindow)
 121     {
 122         m_pClientWindow->SetArtProvider(provider);
 123     }
 124 }
 125
 126 wxAuiTabArt* wxAuiMDIParentFrame::GetArtProvider()
 127 {
 128     if (!m_pClientWindow)
 129         return NULL;
 130
 131     return m_pClientWindow->GetArtProvider();
 132 }
 133
 134 wxAuiNotebook* wxAuiMDIParentFrame::GetNotebook() const
 135 {
 136     return static_cast<wxAuiNotebook*>(m_pClientWindow);
 137 }
 138
 139
 140
 141 #if wxUSE_MENUS
 142 void wxAuiMDIParentFrame::SetWindowMenu(wxMenu* pMenu)
 143 {
 144     // Replace the window menu from the currently loaded menu bar.
 145     wxMenuBar *pMenuBar = GetMenuBar();
 146
 147     if (m_pWindowMenu)
 148     {
 149         RemoveWindowMenu(pMenuBar);
 150         wxDELETE(m_pWindowMenu);
 151     }
 152
 153     if (pMenu)
 154     {
 155         m_pWindowMenu = pMenu;
 156         AddWindowMenu(pMenuBar);
 157     }
 158 }
 159
 160 void wxAuiMDIParentFrame::SetMenuBar(wxMenuBar* pMenuBar)
 161 {
 162     // Remove the Window menu from the old menu bar
 163     RemoveWindowMenu(GetMenuBar());
 164
 165     // Add the Window menu to the new menu bar.
 166     AddWindowMenu(pMenuBar);
 167
 168     wxFrame::SetMenuBar(pMenuBar);
 169     m_pMyMenuBar = GetMenuBar();
 170 }
 171 #endif // wxUSE_MENUS
 172
 173 void wxAuiMDIParentFrame::SetChildMenuBar(wxAuiMDIChildFrame* pChild)
 174 {
 175 #if wxUSE_MENUS
 176     if (!pChild)
 177     {
 178         // No Child, set Our menu bar back.
 179         SetMenuBar(m_pMyMenuBar);
 180
 181         // Make sure we know our menu bar is in use
 182         //m_pMyMenuBar = NULL;
 183     }
 184      else
 185     {
 186         if (pChild->GetMenuBar() == NULL)
 187             return;
 188
 189         // Do we need to save the current bar?
 190         if (m_pMyMenuBar == NULL)
 191             m_pMyMenuBar = GetMenuBar();
 192
 193         SetMenuBar(pChild->GetMenuBar());
 194     }
 195 #endif // wxUSE_MENUS
 196 }
 197
 198 bool wxAuiMDIParentFrame::ProcessEvent(wxEvent& event)
 199 {
 200     // stops the same event being processed repeatedly
 201     if (m_pLastEvt == &event)
 202         return false;
 203     m_pLastEvt = &event;
 204
 205     // let the active child (if any) process the event first.
 206     bool res = false;
 207     if (m_pActiveChild &&
 208         event.IsCommandEvent() &&
 209         event.GetEventObject() != m_pClientWindow &&
 210            !(event.GetEventType() == wxEVT_ACTIVATE ||
 211              event.GetEventType() == wxEVT_SET_FOCUS ||
 212              event.GetEventType() == wxEVT_KILL_FOCUS ||
 213              event.GetEventType() == wxEVT_CHILD_FOCUS ||
 214              event.GetEventType() == wxEVT_COMMAND_SET_FOCUS ||
 215              event.GetEventType() == wxEVT_COMMAND_KILL_FOCUS )
 216        )
 217     {
 218         res = m_pActiveChild->GetEventHandler()->ProcessEvent(event);
 219     }
 220
 221     if (!res)
 222     {
 223         // if the event was not handled this frame will handle it,
 224         // which is why we need the protection code at the beginning
 225         // of this method
 226         res = wxEvtHandler::ProcessEvent(event);
 227     }
 228
 229     m_pLastEvt = NULL;
 230
 231     return res;
 232 }
 233
 234 wxAuiMDIChildFrame *wxAuiMDIParentFrame::GetActiveChild() const
 235 {
 236     return m_pActiveChild;
 237 }
 238
 239 void wxAuiMDIParentFrame::SetActiveChild(wxAuiMDIChildFrame* pChildFrame)
 240 {
 241     m_pActiveChild = pChildFrame;
 242 }
 243
 244 wxAuiMDIClientWindow *wxAuiMDIParentFrame::GetClientWindow() const
 245 {
 246     return m_pClientWindow;
 247 }
 248
 249 wxAuiMDIClientWindow *wxAuiMDIParentFrame::OnCreateClient()
 250 {
 251     m_pClientWindow = new wxAuiMDIClientWindow( this );
 252     return m_pClientWindow;
 253 }
 254
 255 void wxAuiMDIParentFrame::ActivateNext()
 256 {
 257     if (m_pClientWindow && m_pClientWindow->GetSelection() != wxNOT_FOUND)
 258     {
 259         size_t active = m_pClientWindow->GetSelection() + 1;
 260         if (active >= m_pClientWindow->GetPageCount())
 261             active = 0;
 262
 263         m_pClientWindow->SetSelection(active);
 264     }
 265 }
 266
 267 void wxAuiMDIParentFrame::ActivatePrevious()
 268 {
 269     if (m_pClientWindow && m_pClientWindow->GetSelection() != wxNOT_FOUND)
 270     {
 271         int active = m_pClientWindow->GetSelection() - 1;
 272         if (active < 0)
 273             active = m_pClientWindow->GetPageCount() - 1;
 274
 275         m_pClientWindow->SetSelection(active);
 276     }
 277 }
 278
 279 void wxAuiMDIParentFrame::Init()
 280 {
 281     m_pLastEvt = NULL;
 282     m_pClientWindow = NULL;
 283     m_pActiveChild = NULL;
 284 #if wxUSE_MENUS
 285     m_pWindowMenu = NULL;
 286     m_pMyMenuBar = NULL;
 287 #endif // wxUSE_MENUS
 288 }
 289
 290 #if wxUSE_MENUS
 291 void wxAuiMDIParentFrame::RemoveWindowMenu(wxMenuBar* pMenuBar)
 292 {
 293     if (pMenuBar && m_pWindowMenu)
 294     {
 295         // Remove old window menu
 296         int pos = pMenuBar->FindMenu(_("&Window"));
 297         if (pos != wxNOT_FOUND)
 298         {
 299             // DBG:: We're going to delete the wrong menu!!!
 300             wxASSERT(m_pWindowMenu == pMenuBar->GetMenu(pos));
 301             pMenuBar->Remove(pos);
 302         }
 303     }
 304 }
 305
 306 void wxAuiMDIParentFrame::AddWindowMenu(wxMenuBar *pMenuBar)
 307 {
 308     if (pMenuBar && m_pWindowMenu)
 309     {
 310         int pos = pMenuBar->FindMenu(wxGetStockLabel(wxID_HELP,wxSTOCK_NOFLAGS));
 311         if (pos == wxNOT_FOUND)
 312             pMenuBar->Append(m_pWindowMenu, _("&Window"));
 313              else
 314             pMenuBar->Insert(pos, m_pWindowMenu, _("&Window"));
 315     }
 316 }
 317
 318 void wxAuiMDIParentFrame::DoHandleMenu(wxCommandEvent& event)
 319 {
 320     switch (event.GetId())
 321     {
 322         case wxWINDOWCLOSE:
 323             if (m_pActiveChild)
 324                 m_pActiveChild->Close();
 325             break;
 326         case wxWINDOWCLOSEALL:
 327             while (m_pActiveChild)
 328             {
 329                 if (!m_pActiveChild->Close())
 330                 {
 331                     return; // failure
 332                 }
 333                  else
 334                 {
 335                     delete m_pActiveChild;
 336                     m_pActiveChild = NULL;
 337                 }
 338             }
 339             break;
 340         case wxWINDOWNEXT:
 341             ActivateNext();
 342             break;
 343         case wxWINDOWPREV:
 344             ActivatePrevious();
 345             break;
 346         default:
 347             event.Skip();
 348     }
 349 }
 350 #endif // wxUSE_MENUS
 351
 352 void wxAuiMDIParentFrame::DoGetClientSize(int* width, int* height) const
 353 {
 354     wxFrame::DoGetClientSize(width, height);
 355 }
 356
 357 //-----------------------------------------------------------------------------
 358 // wxAuiMDIChildFrame
 359 //-----------------------------------------------------------------------------
 360
 361 IMPLEMENT_DYNAMIC_CLASS(wxAuiMDIChildFrame, wxPanel)
 362
 363 BEGIN_EVENT_TABLE(wxAuiMDIChildFrame, wxPanel)
 364     EVT_MENU_HIGHLIGHT_ALL(wxAuiMDIChildFrame::OnMenuHighlight)
 365     EVT_ACTIVATE(wxAuiMDIChildFrame::OnActivate)
 366     EVT_CLOSE(wxAuiMDIChildFrame::OnCloseWindow)
 367 END_EVENT_TABLE()
 368
 369 wxAuiMDIChildFrame::wxAuiMDIChildFrame()
 370 {
 371     Init();
 372 }
 373
 374 wxAuiMDIChildFrame::wxAuiMDIChildFrame(wxAuiMDIParentFrame *parent,
 375                                        wxWindowID id,
 376                                        const wxString& title,
 377                                        const wxPoint& WXUNUSED(pos),
 378                                        const wxSize& size,
 379                                        long style,
 380                                        const wxString& name)
 381 {
 382     Init();
 383     Create(parent, id, title, wxDefaultPosition, size, style, name);
 384 }
 385
 386 wxAuiMDIChildFrame::~wxAuiMDIChildFrame()
 387 {
 388 #if wxUSE_MENUS
 389     wxDELETE(m_pMenuBar);
 390 #endif // wxUSE_MENUS
 391 }
 392
 393 bool wxAuiMDIChildFrame::Create(wxAuiMDIParentFrame* parent,
 394                                 wxWindowID id,
 395                                 const wxString& title,
 396                                 const wxPoint& WXUNUSED(pos),
 397                                 const wxSize& size,
 398                                 long style,
 399                                 const wxString& name)
 400 {
 401     wxAuiMDIClientWindow* pClientWindow = parent->GetClientWindow();
 402     wxASSERT_MSG((pClientWindow != (wxWindow*) NULL), wxT("Missing MDI client window."));
 403
 404     wxPanel::Create(pClientWindow, id, wxDefaultPosition, size, style|wxNO_BORDER, name);
 405
 406     SetMDIParentFrame(parent);
 407
 408     // this is the currently active child
 409     parent->SetActiveChild(this);
 410
 411     m_title = title;
 412
 413     pClientWindow->AddPage(this, title, true);
 414     pClientWindow->Refresh();
 415
 416     return true;
 417 }
 418
 419 bool wxAuiMDIChildFrame::Destroy()
 420 {
 421     wxAuiMDIParentFrame* pParentFrame = GetMDIParentFrame();
 422     wxASSERT_MSG(pParentFrame, wxT("Missing MDI Parent Frame"));
 423
 424     wxAuiMDIClientWindow* pClientWindow = pParentFrame->GetClientWindow();
 425     wxASSERT_MSG(pClientWindow, wxT("Missing MDI Client Window"));
 426
 427     if (pParentFrame->GetActiveChild() == this)
 428     {
 429         pParentFrame->SetActiveChild(NULL);
 430         pParentFrame->SetChildMenuBar(NULL);
 431     }
 432
 433     const size_t page_count = pClientWindow->GetPageCount();
 434     for (size_t pos = 0; pos < page_count; pos++)
 435     {
 436         if (pClientWindow->GetPage(pos) == this)
 437             return pClientWindow->DeletePage(pos);
 438     }
 439
 440     return false;
 441 }
 442
 443 #if wxUSE_MENUS
 444 void wxAuiMDIChildFrame::SetMenuBar(wxMenuBar *menu_bar)
 445 {
 446     wxMenuBar *pOldMenuBar = m_pMenuBar;
 447     m_pMenuBar = menu_bar;
 448
 449     if (m_pMenuBar)
 450     {
 451         wxAuiMDIParentFrame* pParentFrame = GetMDIParentFrame();
 452         wxASSERT_MSG(pParentFrame, wxT("Missing MDI Parent Frame"));
 453
 454         m_pMenuBar->SetParent(pParentFrame);
 455         if (pParentFrame->GetActiveChild() == this)
 456         {
 457             // replace current menu bars
 458             if (pOldMenuBar)
 459                 pParentFrame->SetChildMenuBar(NULL);
 460             pParentFrame->SetChildMenuBar(this);
 461         }
 462     }
 463 }
 464
 465 wxMenuBar *wxAuiMDIChildFrame::GetMenuBar() const
 466 {
 467     return m_pMenuBar;
 468 }
 469 #endif // wxUSE_MENUS
 470
 471 void wxAuiMDIChildFrame::SetTitle(const wxString& title)
 472 {
 473     m_title = title;
 474
 475     wxAuiMDIParentFrame* pParentFrame = GetMDIParentFrame();
 476     wxASSERT_MSG(pParentFrame, wxT("Missing MDI Parent Frame"));
 477
 478     wxAuiMDIClientWindow* pClientWindow = pParentFrame->GetClientWindow();
 479     if (pClientWindow != NULL)
 480     {
 481         size_t pos;
 482         for (pos = 0; pos < pClientWindow->GetPageCount(); pos++)
 483         {
 484             if (pClientWindow->GetPage(pos) == this)
 485             {
 486                 pClientWindow->SetPageText(pos, m_title);
 487                 break;
 488             }
 489         }
 490     }
 491 }
 492
 493 wxString wxAuiMDIChildFrame::GetTitle() const
 494 {
 495     return m_title;
 496 }
 497
 498 void wxAuiMDIChildFrame::Activate()
 499 {
 500     wxAuiMDIParentFrame* pParentFrame = GetMDIParentFrame();
 501     wxASSERT_MSG(pParentFrame, wxT("Missing MDI Parent Frame"));
 502
 503     wxAuiMDIClientWindow* pClientWindow = pParentFrame->GetClientWindow();
 504
 505     if (pClientWindow != NULL)
 506     {
 507         size_t pos;
 508         for (pos = 0; pos < pClientWindow->GetPageCount(); pos++)
 509         {
 510             if (pClientWindow->GetPage(pos) == this)
 511             {
 512                 pClientWindow->SetSelection(pos);
 513                 break;
 514             }
 515         }
 516     }
 517 }
 518
 519 void wxAuiMDIChildFrame::OnMenuHighlight(wxMenuEvent& event)
 520 {
 521 #if wxUSE_STATUSBAR
 522     if (m_pMDIParentFrame)
 523     {
 524         // we don't have any help text for this item,
 525         // but may be the MDI frame does?
 526         m_pMDIParentFrame->OnMenuHighlight(event);
 527     }
 528 #else
 529     wxUnusedVar(event);
 530 #endif // wxUSE_STATUSBAR
 531 }
 532
 533 void wxAuiMDIChildFrame::OnActivate(wxActivateEvent& WXUNUSED(event))
 534 {
 535     // do nothing
 536 }
 537
 538 void wxAuiMDIChildFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 539 {
 540     Destroy();
 541 }
 542
 543 void wxAuiMDIChildFrame::SetMDIParentFrame(wxAuiMDIParentFrame* parentFrame)
 544 {
 545     m_pMDIParentFrame = parentFrame;
 546 }
 547
 548 wxAuiMDIParentFrame* wxAuiMDIChildFrame::GetMDIParentFrame() const
 549 {
 550     return m_pMDIParentFrame;
 551 }
 552
 553 void wxAuiMDIChildFrame::Init()
 554 {
 555     m_pMDIParentFrame = NULL;
 556 #if wxUSE_MENUS
 557     m_pMenuBar = NULL;
 558 #endif // wxUSE_MENUS
 559 }
 560
 561 bool wxAuiMDIChildFrame::Show(bool WXUNUSED(show))
 562 {
 563     // do nothing
 564     return true;
 565 }
 566
 567 void wxAuiMDIChildFrame::DoShow(bool show)
 568 {
 569     wxWindow::Show(show);
 570 }
 571
 572 void wxAuiMDIChildFrame::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 573 {
 574     m_mdi_newrect = wxRect(x, y, width, height);
 575 #ifdef __WXGTK__
 576     wxPanel::DoSetSize(x,y,width, height, sizeFlags);
 577 #else
 578     wxUnusedVar(sizeFlags);
 579 #endif
 580 }
 581
 582 void wxAuiMDIChildFrame::DoMoveWindow(int x, int y, int width, int height)
 583 {
 584     m_mdi_newrect = wxRect(x, y, width, height);
 585 }
 586
 587 void wxAuiMDIChildFrame::ApplyMDIChildFrameRect()
 588 {
 589     if (m_mdi_currect != m_mdi_newrect)
 590     {
 591         wxPanel::DoMoveWindow(m_mdi_newrect.x, m_mdi_newrect.y,
 592                               m_mdi_newrect.width, m_mdi_newrect.height);
 593         m_mdi_currect = m_mdi_newrect;
 594     }
 595 }
 596
 597
 598 //-----------------------------------------------------------------------------
 599 // wxAuiMDIClientWindow
 600 //-----------------------------------------------------------------------------
 601
 602 IMPLEMENT_DYNAMIC_CLASS(wxAuiMDIClientWindow, wxAuiNotebook)
 603
 604 BEGIN_EVENT_TABLE(wxAuiMDIClientWindow, wxAuiNotebook)
 605     EVT_AUINOTEBOOK_PAGE_CHANGED(wxID_ANY, wxAuiMDIClientWindow::OnPageChanged)
 606     EVT_SIZE(wxAuiMDIClientWindow::OnSize)
 607 END_EVENT_TABLE()
 608
 609 wxAuiMDIClientWindow::wxAuiMDIClientWindow()
 610 {
 611 }
 612
 613 wxAuiMDIClientWindow::wxAuiMDIClientWindow(wxAuiMDIParentFrame* parent, long style)
 614 {
 615     CreateClient(parent, style);
 616 }
 617
 618 wxAuiMDIClientWindow::~wxAuiMDIClientWindow()
 619 {
 620     DestroyChildren();
 621 }
 622
 623 bool wxAuiMDIClientWindow::CreateClient(wxAuiMDIParentFrame* parent, long style)
 624 {
 625     SetWindowStyleFlag(style);
 626
 627     if (!wxAuiNotebook::Create(parent,
 628                                wxID_ANY,
 629                                wxPoint(0,0),
 630                                wxSize(100, 100),
 631                                wxAUI_NB_DEFAULT_STYLE | wxNO_BORDER))
 632     {
 633         return false;
 634     }
 635
 636     wxColour bkcolour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
 637     SetBackgroundColour(bkcolour);
 638
 639     m_mgr.GetArtProvider()->SetColour(wxAUI_ART_BACKGROUND_COLOUR, bkcolour);
 640
 641     return true;
 642 }
 643
 644 int wxAuiMDIClientWindow::SetSelection(size_t nPage)
 645 {
 646     return wxAuiNotebook::SetSelection(nPage);
 647 }
 648
 649 void wxAuiMDIClientWindow::PageChanged(int old_selection, int new_selection)
 650 {
 651     // don't do anything if the page doesn't actually change
 652     if (old_selection == new_selection)
 653         return;
 654
 655     // don't do anything if the new page is already active
 656     if (new_selection != -1)
 657     {
 658         wxAuiMDIChildFrame* child = (wxAuiMDIChildFrame*)GetPage(new_selection);
 659         if (child->GetMDIParentFrame()->GetActiveChild() == child)
 660             return;
 661     }
 662
 663     // notify old active child that it has been deactivated
 664     if (old_selection != -1)
 665     {
 666         wxAuiMDIChildFrame* old_child = (wxAuiMDIChildFrame*)GetPage(old_selection);
 667         wxASSERT_MSG(old_child, wxT("wxAuiMDIClientWindow::PageChanged - null page pointer"));
 668
 669         wxActivateEvent event(wxEVT_ACTIVATE, false, old_child->GetId());
 670         event.SetEventObject(old_child);
 671         old_child->GetEventHandler()->ProcessEvent(event);
 672     }
 673
 674     // notify new active child that it has been activated
 675     if (new_selection != -1)
 676     {
 677         wxAuiMDIChildFrame* active_child = (wxAuiMDIChildFrame*)GetPage(new_selection);
 678         wxASSERT_MSG(active_child, wxT("wxAuiMDIClientWindow::PageChanged - null page pointer"));
 679
 680         wxActivateEvent event(wxEVT_ACTIVATE, true, active_child->GetId());
 681         event.SetEventObject(active_child);
 682         active_child->GetEventHandler()->ProcessEvent(event);
 683
 684         if (active_child->GetMDIParentFrame())
 685         {
 686             active_child->GetMDIParentFrame()->SetActiveChild(active_child);
 687             active_child->GetMDIParentFrame()->SetChildMenuBar(active_child);
 688         }
 689     }
 690 }
 691
 692 void wxAuiMDIClientWindow::OnPageChanged(wxAuiNotebookEvent& evt)
 693 {
 694     PageChanged(evt.GetOldSelection(), evt.GetSelection());
 695     evt.Skip();
 696 }
 697
 698 void wxAuiMDIClientWindow::OnSize(wxSizeEvent& evt)
 699 {
 700     wxAuiNotebook::OnSize(evt);
 701
 702     for (size_t pos = 0; pos < GetPageCount(); pos++)
 703         ((wxAuiMDIChildFrame *)GetPage(pos))->ApplyMDIChildFrameRect();
 704 }
 705
 706 #endif //wxUSE_AUI
 707 #endif // wxUSE_MDI