src/generic/mdig.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/mdig.cpp
   3 // Purpose:     Generic MDI (Multiple Document Interface) classes
   4 // Author:      Hans Van Leemputten
   5 // Modified by:
   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_MDI
  28
  29 #include "wx/generic/mdig.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/panel.h"
  33     #include "wx/menu.h"
  34     #include "wx/intl.h"
  35     #include "wx/log.h"
  36 #endif //WX_PRECOMP
  37
  38 #include "wx/stockitem.h"
  39
  40 enum MDI_MENU_ID
  41 {
  42     wxWINDOWCLOSE = 4001,
  43     wxWINDOWCLOSEALL,
  44     wxWINDOWNEXT,
  45     wxWINDOWPREV
  46 };
  47
  48 //-----------------------------------------------------------------------------
  49 // wxGenericMDIParentFrame
  50 //-----------------------------------------------------------------------------
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxGenericMDIParentFrame, wxFrame)
  53
  54 BEGIN_EVENT_TABLE(wxGenericMDIParentFrame, wxFrame)
  55 #if wxUSE_MENUS
  56     EVT_MENU (wxID_ANY, wxGenericMDIParentFrame::DoHandleMenu)
  57 #endif
  58 END_EVENT_TABLE()
  59
  60 wxGenericMDIParentFrame::wxGenericMDIParentFrame()
  61 {
  62     Init();
  63 }
  64
  65 wxGenericMDIParentFrame::wxGenericMDIParentFrame(wxWindow *parent,
  66                                    wxWindowID id,
  67                                    const wxString& title,
  68                                    const wxPoint& pos,
  69                                    const wxSize& size,
  70                                    long style,
  71                                    const wxString& name)
  72 {
  73     Init();
  74
  75     (void)Create(parent, id, title, pos, size, style, name);
  76 }
  77
  78 wxGenericMDIParentFrame::~wxGenericMDIParentFrame()
  79 {
  80     // Make sure the client window is destructed before the menu bars are!
  81     wxDELETE(m_pClientWindow);
  82
  83 #if wxUSE_MENUS
  84     if (m_pMyMenuBar)
  85     {
  86         delete m_pMyMenuBar;
  87         m_pMyMenuBar = (wxMenuBar *) NULL;
  88     }
  89
  90     RemoveWindowMenu(GetMenuBar());
  91
  92     if (m_pWindowMenu)
  93     {
  94         delete m_pWindowMenu;
  95         m_pWindowMenu = (wxMenu*) NULL;
  96     }
  97 #endif // wxUSE_MENUS
  98 }
  99
 100 bool wxGenericMDIParentFrame::Create(wxWindow *parent,
 101                               wxWindowID id,
 102                               const wxString& title,
 103                               const wxPoint& pos,
 104                               const wxSize& size,
 105                               long style,
 106                               const wxString& name)
 107 {
 108   // this style can be used to prevent a window from having the standard MDI
 109   // "Window" menu
 110   if ( !(style & wxFRAME_NO_WINDOW_MENU) )
 111   {
 112 #if wxUSE_MENUS
 113       m_pWindowMenu = new wxMenu;
 114
 115       m_pWindowMenu->Append(wxWINDOWCLOSE,    _("Cl&ose"));
 116       m_pWindowMenu->Append(wxWINDOWCLOSEALL, _("Close All"));
 117       m_pWindowMenu->AppendSeparator();
 118       m_pWindowMenu->Append(wxWINDOWNEXT,     _("&Next"));
 119       m_pWindowMenu->Append(wxWINDOWPREV,     _("&Previous"));
 120 #endif // wxUSE_MENUS
 121   }
 122
 123   if ( !wxFrame::Create( parent, id, title, pos, size, style, name ) )
 124       return false;
 125
 126   m_pClientWindow = OnCreateClient();
 127
 128   return m_pClientWindow != NULL;
 129 }
 130
 131 #if wxUSE_MENUS
 132 void wxGenericMDIParentFrame::SetWindowMenu(wxMenu* pMenu)
 133 {
 134     // Replace the window menu from the currently loaded menu bar.
 135     wxMenuBar *pMenuBar = GetMenuBar();
 136
 137     if (m_pWindowMenu)
 138     {
 139         RemoveWindowMenu(pMenuBar);
 140
 141         wxDELETE(m_pWindowMenu);
 142     }
 143
 144     if (pMenu)
 145     {
 146         m_pWindowMenu = pMenu;
 147
 148         AddWindowMenu(pMenuBar);
 149     }
 150 }
 151
 152 void wxGenericMDIParentFrame::SetMenuBar(wxMenuBar *pMenuBar)
 153 {
 154     // Remove the Window menu from the old menu bar
 155     RemoveWindowMenu(GetMenuBar());
 156     // Add the Window menu to the new menu bar.
 157     AddWindowMenu(pMenuBar);
 158
 159     wxFrame::SetMenuBar(pMenuBar);
 160 }
 161 #endif // wxUSE_MENUS
 162
 163 void wxGenericMDIParentFrame::SetChildMenuBar(wxGenericMDIChildFrame *pChild)
 164 {
 165 #if wxUSE_MENUS
 166     if (pChild  == (wxGenericMDIChildFrame *) NULL)
 167     {
 168         // No Child, set Our menu bar back.
 169         SetMenuBar(m_pMyMenuBar);
 170
 171         // Make sure we know our menu bar is in use
 172         m_pMyMenuBar = (wxMenuBar*) NULL;
 173     }
 174     else
 175     {
 176         if (pChild->GetMenuBar() == (wxMenuBar*) NULL)
 177             return;
 178
 179         // Do we need to save the current bar?
 180         if (m_pMyMenuBar == NULL)
 181             m_pMyMenuBar = GetMenuBar();
 182
 183         SetMenuBar(pChild->GetMenuBar());
 184     }
 185 #endif // wxUSE_MENUS
 186 }
 187
 188 bool wxGenericMDIParentFrame::ProcessEvent(wxEvent& event)
 189 {
 190     /*
 191      * Redirect events to active child first.
 192      */
 193
 194     // Stops the same event being processed repeatedly
 195     static wxEventType inEvent = wxEVT_NULL;
 196     if (inEvent == event.GetEventType())
 197         return false;
 198
 199     inEvent = event.GetEventType();
 200
 201     // Let the active child (if any) process the event first.
 202     bool res = false;
 203     if (m_pActiveChild && event.IsKindOf(CLASSINFO(wxCommandEvent))
 204 #if 0
 205         /* This is sure to not give problems... */
 206         && (event.GetEventType() == wxEVT_COMMAND_MENU_SELECTED ||
 207             event.GetEventType() == wxEVT_UPDATE_UI )
 208 #else
 209         /* This was tested on wxMSW and worked... */
 210         && event.GetEventObject() != m_pClientWindow
 211         && !(event.GetEventType() == wxEVT_ACTIVATE ||
 212              event.GetEventType() == wxEVT_SET_FOCUS ||
 213              event.GetEventType() == wxEVT_KILL_FOCUS ||
 214              event.GetEventType() == wxEVT_CHILD_FOCUS ||
 215              event.GetEventType() == wxEVT_COMMAND_SET_FOCUS ||
 216              event.GetEventType() == wxEVT_COMMAND_KILL_FOCUS )
 217 #endif
 218        )
 219     {
 220         res = m_pActiveChild->GetEventHandler()->ProcessEvent(event);
 221     }
 222
 223     // If the event was not handled this frame will handle it!
 224     if (!res)
 225     {
 226         res = GetEventHandler()->wxEvtHandler::ProcessEvent(event);
 227     }
 228
 229     inEvent = wxEVT_NULL;
 230
 231     return res;
 232 }
 233
 234 wxGenericMDIChildFrame *wxGenericMDIParentFrame::GetActiveChild() const
 235 {
 236     return m_pActiveChild;
 237 }
 238
 239 void wxGenericMDIParentFrame::SetActiveChild(wxGenericMDIChildFrame* pChildFrame)
 240 {
 241     m_pActiveChild = pChildFrame;
 242 }
 243
 244 wxGenericMDIClientWindow *wxGenericMDIParentFrame::GetClientWindow() const
 245 {
 246     return m_pClientWindow;
 247 }
 248
 249 wxGenericMDIClientWindow *wxGenericMDIParentFrame::OnCreateClient()
 250 {
 251 #if wxUSE_GENERIC_MDI_AS_NATIVE
 252     return new wxMDIClientWindow( this );
 253 #else
 254     return new wxGenericMDIClientWindow( this );
 255 #endif
 256 }
 257
 258 void wxGenericMDIParentFrame::ActivateNext()
 259 {
 260     if (m_pClientWindow && m_pClientWindow->GetSelection() != -1)
 261     {
 262         size_t active = m_pClientWindow->GetSelection() + 1;
 263         if (active >= m_pClientWindow->GetPageCount())
 264             active = 0;
 265
 266         m_pClientWindow->SetSelection(active);
 267     }
 268 }
 269
 270 void wxGenericMDIParentFrame::ActivatePrevious()
 271 {
 272     if (m_pClientWindow && m_pClientWindow->GetSelection() != -1)
 273     {
 274         int active = m_pClientWindow->GetSelection() - 1;
 275         if (active < 0)
 276             active = m_pClientWindow->GetPageCount() - 1;
 277
 278         m_pClientWindow->SetSelection(active);
 279     }
 280 }
 281
 282 void wxGenericMDIParentFrame::Init()
 283 {
 284     m_pClientWindow = (wxGenericMDIClientWindow *) NULL;
 285     m_pActiveChild = (wxGenericMDIChildFrame *) NULL;
 286 #if wxUSE_MENUS
 287     m_pWindowMenu = (wxMenu *) NULL;
 288     m_pMyMenuBar = (wxMenuBar*) NULL;
 289 #endif // wxUSE_MENUS
 290 }
 291
 292 #if wxUSE_MENUS
 293 void wxGenericMDIParentFrame::RemoveWindowMenu(wxMenuBar *pMenuBar)
 294 {
 295     if (pMenuBar && m_pWindowMenu)
 296     {
 297         // Remove old window menu
 298         int pos = pMenuBar->FindMenu(_("&Window"));
 299         if (pos != wxNOT_FOUND)
 300         {
 301             wxASSERT(m_pWindowMenu == pMenuBar->GetMenu(pos)); // DBG:: We're going to delete the wrong menu!!!
 302             pMenuBar->Remove(pos);
 303         }
 304     }
 305 }
 306
 307 void wxGenericMDIParentFrame::AddWindowMenu(wxMenuBar *pMenuBar)
 308 {
 309     if (pMenuBar && m_pWindowMenu)
 310     {
 311         int pos = pMenuBar->FindMenu(wxGetStockLabel(wxID_HELP,false));
 312         if (pos == wxNOT_FOUND)
 313         {
 314             pMenuBar->Append(m_pWindowMenu, _("&Window"));
 315         }
 316         else
 317         {
 318             pMenuBar->Insert(pos, m_pWindowMenu, _("&Window"));
 319         }
 320     }
 321 }
 322
 323 void wxGenericMDIParentFrame::DoHandleMenu(wxCommandEvent &event)
 324 {
 325     switch (event.GetId())
 326     {
 327     case wxWINDOWCLOSE:
 328         if (m_pActiveChild)
 329         {
 330             m_pActiveChild->Close();
 331         }
 332         break;
 333     case wxWINDOWCLOSEALL:
 334         {
 335 #if 0   // code is only needed if next #if is set to 0!
 336             wxGenericMDIChildFrame *pFirstActiveChild = m_pActiveChild;
 337 #endif
 338             while (m_pActiveChild)
 339             {
 340                 if (!m_pActiveChild->Close())
 341                 {
 342                     return; // We failed...
 343                 }
 344                 else
 345                 {
 346 #if 1   // What's best? Delayed deleting or immediate deleting?
 347                     delete m_pActiveChild;
 348                     m_pActiveChild = NULL;
 349 #else
 350                     ActivateNext();
 351
 352                     if (pFirstActiveChild == m_pActiveChild)
 353                         return; // We've called Close on all items, no need to continue.
 354 #endif
 355                 }
 356             }
 357         }
 358         break;
 359     case wxWINDOWNEXT:
 360         ActivateNext();
 361         break;
 362     case wxWINDOWPREV:
 363         ActivatePrevious();
 364         break;
 365     default :
 366         event.Skip();
 367     }
 368 }
 369 #endif // wxUSE_MENUS
 370
 371 void wxGenericMDIParentFrame::DoGetClientSize(int *width, int *height) const
 372 {
 373     wxFrame::DoGetClientSize( width, height );
 374 }
 375
 376
 377 //-----------------------------------------------------------------------------
 378 // wxGenericMDIChildFrame
 379 //-----------------------------------------------------------------------------
 380
 381 IMPLEMENT_DYNAMIC_CLASS(wxGenericMDIChildFrame, wxPanel)
 382
 383 BEGIN_EVENT_TABLE(wxGenericMDIChildFrame, wxPanel)
 384     EVT_MENU_HIGHLIGHT_ALL(wxGenericMDIChildFrame::OnMenuHighlight)
 385     EVT_ACTIVATE(wxGenericMDIChildFrame::OnActivate)
 386
 387     EVT_CLOSE(wxGenericMDIChildFrame::OnCloseWindow)
 388     EVT_SIZE(wxGenericMDIChildFrame::OnSize)
 389 END_EVENT_TABLE()
 390
 391 wxGenericMDIChildFrame::wxGenericMDIChildFrame()
 392 {
 393     Init();
 394 }
 395
 396 wxGenericMDIChildFrame::wxGenericMDIChildFrame( wxGenericMDIParentFrame *parent,
 397       wxWindowID id, const wxString& title,
 398       const wxPoint& WXUNUSED(pos), const wxSize& size,
 399       long style, const wxString& name )
 400 {
 401     Init();
 402
 403     Create( parent, id, title, wxDefaultPosition, size, style, name );
 404 }
 405
 406 wxGenericMDIChildFrame::~wxGenericMDIChildFrame()
 407 {
 408     wxGenericMDIParentFrame *pParentFrame = GetMDIParentFrame();
 409
 410     if (pParentFrame != NULL)
 411     {
 412         bool bActive = false;
 413         if (pParentFrame->GetActiveChild() == this)
 414         {
 415             pParentFrame->SetActiveChild((wxGenericMDIChildFrame*) NULL);
 416             pParentFrame->SetChildMenuBar((wxGenericMDIChildFrame*) NULL);
 417             bActive = true;
 418         }
 419
 420         wxGenericMDIClientWindow *pClientWindow = pParentFrame->GetClientWindow();
 421
 422         // Remove page if still there
 423         size_t pos;
 424         for (pos = 0; pos < pClientWindow->GetPageCount(); pos++)
 425         {
 426             if (pClientWindow->GetPage(pos) == this)
 427             {
 428                 if (pClientWindow->RemovePage(pos))
 429                     pClientWindow->Refresh();
 430                 break;
 431             }
 432         }
 433
 434         if (bActive)
 435         {
 436             // Set the new selection to the a remaining page
 437             if (pClientWindow->GetPageCount() > pos)
 438             {
 439                 pClientWindow->SetSelection(pos);
 440             }
 441             else
 442             {
 443                 if ((int)pClientWindow->GetPageCount() - 1 >= 0)
 444                     pClientWindow->SetSelection(pClientWindow->GetPageCount() - 1);
 445             }
 446         }
 447     }
 448
 449 #if wxUSE_MENUS
 450     wxDELETE(m_pMenuBar);
 451 #endif // wxUSE_MENUS
 452 }
 453
 454 bool wxGenericMDIChildFrame::Create( wxGenericMDIParentFrame *parent,
 455       wxWindowID id, const wxString& title,
 456       const wxPoint& WXUNUSED(pos), const wxSize& size,
 457       long style, const wxString& name )
 458 {
 459     wxGenericMDIClientWindow* pClientWindow = parent->GetClientWindow();
 460
 461     wxASSERT_MSG((pClientWindow != (wxWindow*) NULL), wxT("Missing MDI client window.") );
 462
 463     wxPanel::Create(pClientWindow, id, wxDefaultPosition, size, style, name);
 464
 465     SetMDIParentFrame(parent);
 466
 467     // This is the currently active child
 468     parent->SetActiveChild(this);
 469
 470     m_Title = title;
 471
 472     pClientWindow->AddPage(this, title, true);
 473     ApplyMDIChildFrameRect();   // Ok confirme the size change!
 474     pClientWindow->Refresh();
 475
 476     return true;
 477 }
 478
 479 #if wxUSE_MENUS
 480 void wxGenericMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar )
 481 {
 482     wxMenuBar *pOldMenuBar = m_pMenuBar;
 483     m_pMenuBar = menu_bar;
 484
 485     if (m_pMenuBar)
 486     {
 487         wxGenericMDIParentFrame *pParentFrame = GetMDIParentFrame();
 488
 489         if (pParentFrame != NULL)
 490         {
 491             m_pMenuBar->SetParent(pParentFrame);
 492
 493             if (pParentFrame->GetActiveChild() == this)
 494             {
 495                 // Replace current menu bars
 496                 if (pOldMenuBar)
 497                     pParentFrame->SetChildMenuBar((wxGenericMDIChildFrame*) NULL);
 498                 pParentFrame->SetChildMenuBar((wxGenericMDIChildFrame*) this);
 499             }
 500         }
 501     }
 502 }
 503
 504 wxMenuBar *wxGenericMDIChildFrame::GetMenuBar() const
 505 {
 506     return m_pMenuBar;
 507 }
 508 #endif // wxUSE_MENUS
 509
 510 void wxGenericMDIChildFrame::SetTitle(const wxString& title)
 511 {
 512     m_Title = title;
 513
 514     wxGenericMDIParentFrame *pParentFrame = GetMDIParentFrame();
 515
 516     if (pParentFrame != NULL)
 517     {
 518         wxGenericMDIClientWindow * pClientWindow = pParentFrame->GetClientWindow();
 519
 520         if (pClientWindow != NULL)
 521         {
 522             size_t pos;
 523             for (pos = 0; pos < pClientWindow->GetPageCount(); pos++)
 524             {
 525                 if (pClientWindow->GetPage(pos) == this)
 526                 {
 527                     pClientWindow->SetPageText(pos, m_Title);
 528                     break;
 529                 }
 530             }
 531         }
 532     }
 533 }
 534
 535 wxString wxGenericMDIChildFrame::GetTitle() const
 536 {
 537     return m_Title;
 538 }
 539
 540 void wxGenericMDIChildFrame::Activate()
 541 {
 542     wxGenericMDIParentFrame *pParentFrame = GetMDIParentFrame();
 543
 544     if (pParentFrame != NULL)
 545     {
 546         wxGenericMDIClientWindow * pClientWindow = pParentFrame->GetClientWindow();
 547
 548         if (pClientWindow != NULL)
 549         {
 550             size_t pos;
 551             for (pos = 0; pos < pClientWindow->GetPageCount(); pos++)
 552             {
 553                 if (pClientWindow->GetPage(pos) == this)
 554                 {
 555                     pClientWindow->SetSelection(pos);
 556                     break;
 557                 }
 558             }
 559         }
 560     }
 561 }
 562
 563 void wxGenericMDIChildFrame::OnMenuHighlight(wxMenuEvent& event)
 564 {
 565 #if wxUSE_STATUSBAR
 566     if ( m_pMDIParentFrame)
 567     {
 568         // we don't have any help text for this item,
 569         // but may be the MDI frame does?
 570         m_pMDIParentFrame->OnMenuHighlight(event);
 571     }
 572 #else
 573     wxUnusedVar(event);
 574 #endif // wxUSE_STATUSBAR
 575 }
 576
 577 void wxGenericMDIChildFrame::OnActivate(wxActivateEvent& WXUNUSED(event))
 578 {
 579     // Do mothing.
 580 }
 581
 582 /*** Copied from top level..! ***/
 583 // default resizing behaviour - if only ONE subwindow, resize to fill the
 584 // whole client area
 585 void wxGenericMDIChildFrame::OnSize(wxSizeEvent& WXUNUSED(event))
 586 {
 587     // if we're using constraints or sizers - do use them
 588     if ( GetAutoLayout() )
 589     {
 590         Layout();
 591     }
 592     else
 593     {
 594         // do we have _exactly_ one child?
 595         wxWindow *child = (wxWindow *)NULL;
 596         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 597               node;
 598               node = node->GetNext() )
 599         {
 600             wxWindow *win = node->GetData();
 601
 602             // exclude top level and managed windows (status bar isn't
 603             // currently in the children list except under wxMac anyhow, but
 604             // it makes no harm to test for it)
 605             if ( !win->IsTopLevel() /*&& !IsOneOfBars(win)*/ )
 606             {
 607                 if ( child )
 608                 {
 609                     return;     // it's our second subwindow - nothing to do
 610                 }
 611
 612                 child = win;
 613             }
 614         }
 615
 616         // do we have any children at all?
 617         if ( child )
 618         {
 619             // exactly one child - set it's size to fill the whole frame
 620             int clientW, clientH;
 621             DoGetClientSize(&clientW, &clientH);
 622
 623             // for whatever reasons, wxGTK wants to have a small offset - it
 624             // probably looks better with it?
 625 #ifdef __WXGTK__
 626             static const int ofs = 1;
 627 #else
 628             static const int ofs = 0;
 629 #endif
 630
 631             child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
 632         }
 633     }
 634 }
 635
 636 /*** Copied from top level..! ***/
 637 // The default implementation for the close window event.
 638 void wxGenericMDIChildFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 639 {
 640     Destroy();
 641 }
 642
 643 void wxGenericMDIChildFrame::SetMDIParentFrame(wxGenericMDIParentFrame* parentFrame)
 644 {
 645     m_pMDIParentFrame = parentFrame;
 646 }
 647
 648 wxGenericMDIParentFrame* wxGenericMDIChildFrame::GetMDIParentFrame() const
 649 {
 650     return m_pMDIParentFrame;
 651 }
 652
 653 void wxGenericMDIChildFrame::Init()
 654 {
 655     m_pMDIParentFrame = (wxGenericMDIParentFrame *) NULL;
 656 #if wxUSE_MENUS
 657     m_pMenuBar = (wxMenuBar *) NULL;
 658 #endif // wxUSE_MENUS
 659 }
 660
 661 void wxGenericMDIChildFrame::DoMoveWindow(int x, int y, int width, int height)
 662 {
 663     m_MDIRect = wxRect(x, y, width, height);
 664 }
 665
 666 void wxGenericMDIChildFrame::ApplyMDIChildFrameRect()
 667 {
 668     wxPanel::DoMoveWindow(m_MDIRect.x, m_MDIRect.y, m_MDIRect.width, m_MDIRect.height);
 669 }
 670
 671 //-----------------------------------------------------------------------------
 672 // wxGenericMDIClientWindow
 673 //-----------------------------------------------------------------------------
 674
 675 #define wxID_NOTEBOOK_CLIENT_AREA wxID_HIGHEST + 100
 676
 677 IMPLEMENT_DYNAMIC_CLASS(wxGenericMDIClientWindow, wxNotebook)
 678
 679 BEGIN_EVENT_TABLE(wxGenericMDIClientWindow, wxNotebook)
 680     EVT_NOTEBOOK_PAGE_CHANGED(wxID_NOTEBOOK_CLIENT_AREA, wxGenericMDIClientWindow::OnPageChanged)
 681     EVT_SIZE(wxGenericMDIClientWindow::OnSize)
 682 END_EVENT_TABLE()
 683
 684
 685 wxGenericMDIClientWindow::wxGenericMDIClientWindow()
 686 {
 687 }
 688
 689 wxGenericMDIClientWindow::wxGenericMDIClientWindow( wxGenericMDIParentFrame *parent, long style )
 690 {
 691     CreateClient( parent, style );
 692 }
 693
 694 wxGenericMDIClientWindow::~wxGenericMDIClientWindow()
 695 {
 696     DestroyChildren();
 697 }
 698
 699 bool wxGenericMDIClientWindow::CreateClient( wxGenericMDIParentFrame *parent, long style )
 700 {
 701     SetWindowStyleFlag(style);
 702
 703     bool success = wxNotebook::Create(parent, wxID_NOTEBOOK_CLIENT_AREA, wxPoint(0,0), wxSize(100, 100), 0);
 704     if (success)
 705     {
 706         /*
 707         wxFont font(10, wxSWISS, wxNORMAL, wxNORMAL);
 708         wxFont selFont(10, wxSWISS, wxNORMAL, wxBOLD);
 709         GetTabView()->SetTabFont(font);
 710         GetTabView()->SetSelectedTabFont(selFont);
 711         GetTabView()->SetTabSize(120, 18);
 712         GetTabView()->SetTabSelectionHeight(20);
 713         */
 714         return true;
 715     }
 716     else
 717         return false;
 718 }
 719
 720 int wxGenericMDIClientWindow::SetSelection(size_t nPage)
 721 {
 722     int oldSelection = wxNotebook::SetSelection(nPage);
 723
 724 #if !defined(__WXMSW__) // No need to do this for wxMSW as wxNotebook::SetSelection()
 725                         // will already cause this to be done!
 726     // Handle the page change.
 727     PageChanged(oldSelection, nPage);
 728 #endif
 729
 730     return oldSelection;
 731 }
 732
 733 void wxGenericMDIClientWindow::PageChanged(int OldSelection, int newSelection)
 734 {
 735     // Don't do to much work, only when something realy should change!
 736     if (OldSelection == newSelection)
 737         return;
 738     // Again check if we realy need to do this...
 739     if (newSelection != -1)
 740     {
 741         wxGenericMDIChildFrame* child = (wxGenericMDIChildFrame *)GetPage(newSelection);
 742
 743         if (child->GetMDIParentFrame()->GetActiveChild() == child)
 744             return;
 745     }
 746
 747     // Notify old active child that it has been deactivated
 748     if (OldSelection != -1)
 749     {
 750         wxGenericMDIChildFrame* oldChild = (wxGenericMDIChildFrame *)GetPage(OldSelection);
 751         if (oldChild)
 752         {
 753             wxActivateEvent event(wxEVT_ACTIVATE, false, oldChild->GetId());
 754             event.SetEventObject( oldChild );
 755             oldChild->GetEventHandler()->ProcessEvent(event);
 756         }
 757     }
 758
 759     // Notify new active child that it has been activated
 760     if (newSelection != -1)
 761     {
 762         wxGenericMDIChildFrame* activeChild = (wxGenericMDIChildFrame *)GetPage(newSelection);
 763         if (activeChild)
 764         {
 765             wxActivateEvent event(wxEVT_ACTIVATE, true, activeChild->GetId());
 766             event.SetEventObject( activeChild );
 767             activeChild->GetEventHandler()->ProcessEvent(event);
 768
 769             if (activeChild->GetMDIParentFrame())
 770             {
 771                 activeChild->GetMDIParentFrame()->SetActiveChild(activeChild);
 772                 activeChild->GetMDIParentFrame()->SetChildMenuBar(activeChild);
 773             }
 774         }
 775     }
 776 }
 777
 778 void wxGenericMDIClientWindow::OnPageChanged(wxNotebookEvent& event)
 779 {
 780     PageChanged(event.GetOldSelection(), event.GetSelection());
 781
 782     event.Skip();
 783 }
 784
 785 void wxGenericMDIClientWindow::OnSize(wxSizeEvent& event)
 786 {
 787     wxNotebook::OnSize(event);
 788
 789     size_t pos;
 790     for (pos = 0; pos < GetPageCount(); pos++)
 791     {
 792         ((wxGenericMDIChildFrame *)GetPage(pos))->ApplyMDIChildFrameRect();
 793     }
 794 }
 795
 796
 797 /*
 798  * Define normal wxMDI classes based on wxGenericMDI
 799  */
 800
 801 #if wxUSE_GENERIC_MDI_AS_NATIVE
 802
 803 wxMDIChildFrame * wxMDIParentFrame::GetActiveChild() const
 804     {
 805         wxGenericMDIChildFrame *pGFrame = wxGenericMDIParentFrame::GetActiveChild();
 806         wxMDIChildFrame *pFrame = wxDynamicCast(pGFrame, wxMDIChildFrame);
 807
 808         wxASSERT_MSG(!(pFrame == NULL && pGFrame != NULL), wxT("Active frame is class not derived from wxMDIChildFrame!"));
 809
 810         return pFrame;
 811     }
 812
 813 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxGenericMDIParentFrame)
 814 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxGenericMDIChildFrame)
 815 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxGenericMDIClientWindow)
 816
 817 #endif // wxUSE_GENERIC_MDI_AS_NATIVE
 818
 819 #endif // wxUSE_MDI
 820