src/os2/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     30.12.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38     #include "wx/control.h"
  39     #include "wx/containr.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/module.h"        // wxSetFocusToChild()
  43 #include "wx/os2/private.h"
  44
  45 // ----------------------------------------------------------------------------
  46 // stubs for missing functions under MicroWindows
  47 // ----------------------------------------------------------------------------
  48
  49
  50 // ----------------------------------------------------------------------------
  51 // globals
  52 // ----------------------------------------------------------------------------
  53
  54 // list of all frames and modeless dialogs
  55 wxWindowList wxModelessWindows;
  56
  57 // the name of the default wxWindows class
  58 extern void          wxAssociateWinWithHandle( HWND         hWnd
  59                                               ,wxWindowOS2* pWin
  60                                              );
  61 bool                 wxTopLevelWindowOS2::m_sbInitialized = FALSE;
  62 wxWindow*            wxTopLevelWindowOS2::m_spHiddenParent = NULL;
  63
  64 // ============================================================================
  65 // wxTopLevelWindowOS2 implementation
  66 // ============================================================================
  67
  68 BEGIN_EVENT_TABLE(wxTopLevelWindowOS2, wxTopLevelWindowBase)
  69     EVT_ACTIVATE(wxTopLevelWindowOS2::OnActivate)
  70 END_EVENT_TABLE()
  71
  72 // ============================================================================
  73 // wxTopLevelWindowMSW implementation
  74 // ============================================================================
  75
  76 // Dialog window proc
  77 MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
  78                            ,UINT uMessage
  79                            ,MPARAM WXUNUSED(wParam)
  80                            ,MPARAM WXUNUSED(lParam)
  81                           )
  82 {
  83     switch(uMessage)
  84     {
  85         case WM_INITDLG:
  86             //
  87             // For this message, returning TRUE tells system to set focus to
  88             // the first control in the dialog box, but we set the focus
  89             // ourselves, however in OS/2 we must return true to enable the dialog
  90             //
  91             return (MRESULT)TRUE;
  92         default:
  93             //
  94             // For all the other ones, FALSE means that we didn't process the
  95             // message
  96             //
  97             return (MRESULT)FALSE;
  98     }
  99 } // end of wxDlgProc
 100
 101 // ----------------------------------------------------------------------------
 102 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
 103 // module to ensure that the window is always deleted)
 104 // ----------------------------------------------------------------------------
 105
 106 class wxTLWHiddenParentModule : public wxModule
 107 {
 108 public:
 109     //
 110     // Module init/finalize
 111     //
 112     virtual bool OnInit(void);
 113     virtual void OnExit(void);
 114
 115     //
 116     // Get the hidden window (creates on demand)
 117     //
 118     static HWND GetHWND(void);
 119
 120 private:
 121     //
 122     // The HWND of the hidden parent
 123     //
 124     static HWND                     m_shWnd;
 125
 126     //
 127     // The class used to create it
 128     //
 129     static const wxChar*            m_szClassName;
 130     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 131 }; // end of CLASS wxTLWHiddenParentModule
 132
 133 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 134
 135 // ----------------------------------------------------------------------------
 136 // wxTopLevelWindowOS2 creation
 137 // ----------------------------------------------------------------------------
 138
 139 void wxTopLevelWindowOS2::Init()
 140 {
 141     m_bIconized = m_bMaximizeOnShow = FALSE;
 142
 143     //
 144     // Unlike (almost?) all other windows, frames are created hidden
 145     //
 146     m_isShown = FALSE;
 147
 148     //
 149     // Data to save/restore when calling ShowFullScreen
 150     m_lFsStyle          = 0;
 151     m_lFsOldWindowStyle = 0;
 152     m_bFsIsMaximized    = FALSE;
 153     m_bFsIsShowing      = FALSE;
 154
 155     m_hFrame    = NULLHANDLE;
 156     memset(&m_vSwp, 0, sizeof(SWP));
 157     memset(&m_vSwpClient, 0, sizeof(SWP));
 158     m_pWinLastFocused = (wxWindow *)NULL;
 159 } // end of wxTopLevelWindowIOS2::Init
 160
 161 void wxTopLevelWindowOS2::OnActivate(
 162   wxActivateEvent&                  rEvent
 163 )
 164 {
 165     if (rEvent.GetActive())
 166     {
 167         //
 168         // Restore focus to the child which was last focused
 169         //
 170         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), m_hWnd);
 171
 172         wxWindow*                   pParent = m_pWinLastFocused ? m_pWinLastFocused->GetParent()
 173                                                                 : NULL;
 174         if (!pParent)
 175         {
 176             pParent = this;
 177         }
 178
 179         wxSetFocusToChild( pParent
 180                           ,&m_pWinLastFocused
 181                          );
 182     }
 183     else // deactivating
 184     {
 185         //
 186         // Remember the last focused child if it is our child
 187         //
 188         m_pWinLastFocused = FindFocus();
 189
 190         //
 191         // So we NULL it out if it's a child from some other frame
 192         //
 193         wxWindow*                   pWin = m_pWinLastFocused;
 194
 195         while (pWin)
 196         {
 197             if (pWin->IsTopLevel())
 198             {
 199                 if (pWin != this)
 200                 {
 201                     m_pWinLastFocused = NULL;
 202                 }
 203                 break;
 204             }
 205             pWin = pWin->GetParent();
 206         }
 207
 208         wxLogTrace(_T("focus"),
 209                    _T("wxTLW %08x deactivated, last focused: %08x."),
 210                    m_hWnd,
 211                    m_pWinLastFocused ? GetHwndOf(m_pWinLastFocused)
 212                                      : NULL);
 213         rEvent.Skip();
 214     }
 215 } // end of wxTopLevelWindowOS2::OnActivate
 216
 217 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
 218   long                              lStyle
 219 , WXDWORD*                          pdwExflags
 220 ) const
 221 {
 222     long                            lMsflags = wxWindow::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
 223                                                                      ,pdwExflags
 224                                                                     );
 225
 226     if (lStyle == wxDEFAULT_FRAME_STYLE)
 227         lMsflags |= FCF_SIZEBORDER | FCF_TITLEBAR | FCF_SYSMENU |
 228                     FCF_MINMAX | FCF_TASKLIST;
 229     else
 230     {
 231         if ((lStyle & wxCAPTION) == wxCAPTION)
 232             lMsflags |= FCF_TASKLIST;
 233         else
 234             lMsflags |= FCF_NOMOVEWITHOWNER;
 235
 236         if ((lStyle & wxVSCROLL) == wxVSCROLL)
 237             lMsflags |= FCF_VERTSCROLL;
 238         if ((lStyle & wxHSCROLL) == wxHSCROLL)
 239             lMsflags |= FCF_HORZSCROLL;
 240         if (lStyle & wxMINIMIZE_BOX)
 241             lMsflags |= FCF_MINBUTTON;
 242         if (lStyle & wxMAXIMIZE_BOX)
 243             lMsflags |= FCF_MAXBUTTON;
 244         if (lStyle & wxTHICK_FRAME)
 245             lMsflags |= FCF_DLGBORDER;
 246         if (lStyle & wxSYSTEM_MENU)
 247             lMsflags |= FCF_SYSMENU;
 248         if (lStyle & wxCAPTION)
 249             lMsflags |= FCF_TASKLIST;
 250         if (lStyle & wxCLIP_CHILDREN)
 251         {
 252             // Invalid for frame windows under PM
 253         }
 254
 255         if (lStyle & wxTINY_CAPTION_VERT)
 256             lMsflags |= FCF_TASKLIST;
 257         if (lStyle & wxTINY_CAPTION_HORIZ)
 258             lMsflags |= FCF_TASKLIST;
 259
 260         if ((lStyle & wxTHICK_FRAME) == 0)
 261             lMsflags |= FCF_BORDER;
 262         if (lStyle & wxFRAME_TOOL_WINDOW)
 263             *pdwExflags = kFrameToolWindow;
 264
 265         if (lStyle & wxSTAY_ON_TOP)
 266             lMsflags |= FCF_SYSMODAL;
 267     }
 268     return lMsflags;
 269 } // end of wxTopLevelWindowOS2::OS2GetCreateWindowFlags
 270
 271 WXHWND wxTopLevelWindowOS2::OS2GetParent() const
 272 {
 273     HWND                            hWndParent = NULL;
 274
 275     //
 276     // For the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 277     // parent HWND or it would be always on top of its parent which is not what
 278     // we usually want (in fact, we only want it for frames with the
 279     // wxFRAME_FLOAT_ON_PARENT flag)
 280     //
 281     if (HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 282     {
 283         const wxWindow*             pParent = GetParent();
 284
 285         if (!pParent)
 286         {
 287             //
 288             // This flag doesn't make sense then and will be ignored
 289             //
 290             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 291         }
 292         else
 293         {
 294             hWndParent = GetHwndOf(pParent);
 295         }
 296     }
 297     //else: don't float on parent, must not be owned
 298
 299     //
 300     // Now deal with the 2nd taskbar-related problem (see comments above in
 301     // OS2GetStyle())
 302     //
 303     if (HasFlag(wxFRAME_NO_TASKBAR) && !hWndParent)
 304     {
 305         //
 306         // Use hidden parent
 307         //
 308         hWndParent = wxTLWHiddenParentModule::GetHWND();
 309     }
 310     return (WXHWND)hWndParent;
 311 } // end of wxTopLevelWindowOS2::OS2GetParent
 312
 313 bool wxTopLevelWindowOS2::CreateDialog(
 314   ULONG                             ulDlgTemplate
 315 , const wxString&                   rsTitle
 316 , const wxPoint&                    rPos
 317 , const wxSize&                     rSize
 318 )
 319 {
 320     wxWindow*                       pParent = GetParent();
 321
 322     //
 323     // For the dialogs without wxDIALOG_NO_PARENT style, use the top level
 324     // app window as parent - this avoids creating modal dialogs without
 325     // parent
 326     //
 327     if (!pParent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT))
 328     {
 329         pParent = wxTheApp->GetTopWindow();
 330
 331         if (pParent)
 332         {
 333             //
 334             // Don't use transient windows as parents, this is dangerous as it
 335             // can lead to a crash if the parent is destroyed before the child
 336             //
 337             // also don't use the window which is currently hidden as then the
 338             // dialog would be hidden as well
 339             if ((pParent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 340                  !pParent->IsShown())
 341             {
 342                 pParent = NULL;
 343             }
 344         }
 345     }
 346
 347     HWND                            hWndDlg;
 348     HWND                            hWndOwner;
 349
 350     if (pParent)
 351         hWndOwner = GetHwndOf(pParent);
 352     else
 353         hWndOwner = HWND_DESKTOP;
 354
 355     hWndDlg = ::WinLoadDlg( HWND_DESKTOP
 356                            ,hWndOwner
 357                            ,(PFNWP)wxDlgProc
 358                            ,NULL
 359                            ,(ULONG)ulDlgTemplate
 360                            ,(PVOID)this
 361                           );
 362
 363     m_hWnd = (WXHWND) hWndDlg;
 364
 365     if ( !m_hWnd )
 366     {
 367         wxFAIL_MSG(wxT("Did you forget to include wx/os2/wx.rc in your resources?"));
 368
 369         wxLogSysError(wxT("Can't create dialog using template '%ul'"), ulDlgTemplate);
 370
 371         return FALSE;
 372     }
 373
 374     //
 375     // Move the dialog to its initial position without forcing repainting
 376     //
 377     int                             nX;
 378     int                             nY;
 379     int                             nWidth;
 380     int                             nHeight;
 381
 382     if (!OS2GetCreateWindowCoords( rPos
 383                                   ,rSize
 384                                   ,nX
 385                                   ,nY
 386                                   ,nWidth
 387                                   ,nHeight
 388                                  ))
 389     {
 390         nX = nWidth = (int)CW_USEDEFAULT;
 391     }
 392
 393     //
 394     // We can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 395     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 396     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 397     // sizer calculation in wxSizer::Fit()
 398     //
 399     if (nWidth == (int)CW_USEDEFAULT)
 400     {
 401         //
 402         // The exact number doesn't matter, the dialog will be resized
 403         // again soon anyhow but it should be big enough to allow
 404         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 405         // at least greater than the title bar height
 406         //
 407         nWidth = nHeight = 100;
 408     }
 409     if (nX == (int)CW_USEDEFAULT)
 410     {
 411         //
 412         // Centre it on the screen - what else can we do?
 413         //
 414         wxSize                      vSizeDpy = wxGetDisplaySize();
 415
 416         nX = (vSizeDpy.x - nWidth) / 2;
 417         nY = (vSizeDpy.y - nHeight) / 2;
 418     }
 419     m_backgroundColour.Set(wxString("LIGHT GREY"));
 420
 421     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 422
 423     if (!::WinSetPresParam( m_hWnd
 424                            ,PP_BACKGROUNDCOLOR
 425                            ,sizeof(LONG)
 426                            ,(PVOID)&lColor
 427                           ))
 428     {
 429         return FALSE;
 430     }
 431
 432     ::WinSetWindowPos( GetHwnd()
 433                       ,HWND_TOP
 434                       ,nX
 435                       ,nY
 436                       ,nWidth
 437                       ,nHeight
 438                       ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW | SWP_ACTIVATE
 439                      );
 440     ::WinQueryWindowPos(GetHwnd(), GetSwp());
 441     m_hFrame = m_hWnd;
 442     SubclassWin(m_hWnd);
 443     return TRUE;
 444 } // end of wxTopLevelWindowOS2::CreateDialog
 445
 446 bool wxTopLevelWindowOS2::CreateFrame(
 447   const wxString&                   rsTitle
 448 , const wxPoint&                    rPos
 449 , const wxSize&                     rSize
 450 )
 451 {
 452     WXDWORD                         lExflags;
 453     WXDWORD                         lFlags = OS2GetCreateWindowFlags(&lExflags);
 454     long                            lStyle = GetWindowStyleFlag();
 455     int                             nX = rPos.x;
 456     int                             nY = rPos.y;
 457     int                             nWidth = rSize.x;
 458     int                             nHeight = rSize.y;
 459     ULONG                           ulStyleFlags = 0L;
 460     ERRORID                         vError;
 461     wxString                        sError;
 462     wxWindow*                       pParent = GetParent();
 463     HWND                            hParent;
 464     HWND                            hFrame;
 465     HWND                            hClient;
 466
 467     if (pParent)
 468         hParent = GetHwndOf(pParent);
 469     else
 470         hParent = HWND_DESKTOP;
 471
 472     if ((lStyle & wxMINIMIZE) || (lStyle & wxICONIZE))
 473         ulStyleFlags |= WS_MINIMIZED;
 474     if (lStyle & wxMAXIMIZE)
 475         ulStyleFlags |= WS_MAXIMIZED;
 476
 477     //
 478     // Clear the visible flag, we always call show
 479     //
 480     ulStyleFlags &= (unsigned long)~WS_VISIBLE;
 481     m_bIconized = FALSE;
 482
 483     //
 484     // Create the frame window:  We break ranks with other ports now
 485     // and instead of calling down into the base wxWindow class' OS2Create
 486     // we do all our own stuff here.  We will set the needed pieces
 487     // of wxWindow manually, here.
 488     //
 489
 490      hFrame = ::WinCreateStdWindow( hParent
 491                                    ,ulStyleFlags          // frame-window style
 492                                    ,(PULONG)&lFlags       // window style
 493                                    ,(PSZ)wxFrameClassName // class name
 494                                    ,(PSZ)rsTitle.c_str()  // window title
 495                                    ,0L                    // default client style
 496                                    ,NULLHANDLE            // resource in executable file
 497                                    ,0                     // resource id
 498                                    ,&hClient              // receives client window handle
 499                                   );
 500     if (!hFrame)
 501     {
 502         vError = ::WinGetLastError(vHabmain);
 503         sError = wxPMErrorToStr(vError);
 504         wxLogError("Error creating frame. Error: %s\n", sError.c_str());
 505         return FALSE;
 506     }
 507
 508     //
 509     // wxWindow class' m_hWnd set here and needed associations
 510     //
 511     m_hFrame = hFrame;
 512     m_hWnd   = hClient;
 513     wxAssociateWinWithHandle(m_hWnd, this);
 514     wxAssociateWinWithHandle(m_hFrame, this);
 515
 516     m_backgroundColour.Set(wxString("MEDIUM GREY"));
 517
 518     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 519
 520     if (!::WinSetPresParam( m_hWnd
 521                            ,PP_BACKGROUNDCOLOR
 522                            ,sizeof(LONG)
 523                            ,(PVOID)&lColor
 524                           ))
 525     {
 526         vError = ::WinGetLastError(vHabmain);
 527         sError = wxPMErrorToStr(vError);
 528         wxLogError("Error creating frame. Error: %s\n", sError.c_str());
 529         return FALSE;
 530     }
 531
 532     //
 533     // Now need to subclass window.  Instead of calling the SubClassWin in wxWindow
 534     // we manually subclass here because we don't want to use the main wxWndProc
 535     // by default
 536     //
 537     m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(m_hFrame, (PFNWP)wxFrameMainWndProc);
 538
 539     //
 540     // Now size everything.  If adding a menu the client will need to be resized.
 541     //
 542
 543     if (pParent)
 544     {
 545         nY = pParent->GetSize().y - (nY + nHeight);
 546     }
 547     else
 548     {
 549         RECTL                   vRect;
 550
 551         ::WinQueryWindowRect(HWND_DESKTOP, &vRect);
 552         nY = vRect.yTop - (nY + nHeight);
 553     }
 554     if (!::WinSetWindowPos( m_hFrame
 555                            ,HWND_TOP
 556                            ,nX
 557                            ,nY
 558                            ,nWidth
 559                            ,nHeight
 560                            ,SWP_SIZE | SWP_MOVE | SWP_ACTIVATE | SWP_ZORDER
 561                           ))
 562     {
 563         vError = ::WinGetLastError(vHabmain);
 564         sError = wxPMErrorToStr(vError);
 565         wxLogError("Error sizing frame. Error: %s\n", sError.c_str());
 566         return FALSE;
 567     }
 568     lStyle =  ::WinQueryWindowULong( m_hWnd
 569                                     ,QWL_STYLE
 570                                    );
 571     lStyle |= WS_CLIPCHILDREN;
 572     ::WinSetWindowULong( m_hWnd
 573                         ,QWL_STYLE
 574                         ,lStyle
 575                        );
 576     return TRUE;
 577 } // end of wxTopLevelWindowOS2::CreateFrame
 578
 579 bool wxTopLevelWindowOS2::Create(
 580   wxWindow*                         pParent
 581 , wxWindowID                        vId
 582 , const wxString&                   rsTitle
 583 , const wxPoint&                    rPos
 584 , const wxSize&                     rSize
 585 , long                              lStyle
 586 , const wxString&                   rsName
 587 )
 588 {
 589     //
 590     // Init our fields
 591     //
 592     Init();
 593     m_windowStyle = lStyle;
 594     SetName(rsName);
 595     m_windowId = vId == -1 ? NewControlId() : vId;
 596     wxTopLevelWindows.Append(this);
 597     if (pParent)
 598         pParent->AddChild(this);
 599
 600     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 601     {
 602         //
 603         // We have different dialog templates to allows creation of dialogs
 604         // with & without captions under OS2indows, resizeable or not (but a
 605         // resizeable dialog always has caption - otherwise it would look too
 606         // strange)
 607         //
 608         ULONG                       ulDlgTemplate;
 609
 610         if (lStyle & wxRESIZE_BORDER)
 611             ulDlgTemplate = (ULONG)kResizeableDialog;
 612         else if (lStyle & wxCAPTION)
 613             ulDlgTemplate = (ULONG)kCaptionDialog;
 614         else
 615             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 616         return CreateDialog( ulDlgTemplate
 617                             ,rsTitle
 618                             ,rPos
 619                             ,rSize
 620                            );
 621     }
 622     else // !dialog
 623     {
 624         return CreateFrame( rsTitle
 625                            ,rPos
 626                            ,rSize
 627                           );
 628     }
 629 } // end of wxTopLevelWindowOS2::Create
 630
 631 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 632 {
 633     if (wxModelessWindows.Find(this))
 634         wxModelessWindows.DeleteObject(this);
 635
 636     //
 637     // After destroying an owned window, Windows activates the next top level
 638     // window in Z order but it may be different from our owner (to reproduce
 639     // this simply Alt-TAB to another application and back before closing the
 640     // owned frame) whereas we always want to yield activation to our parent
 641     //
 642     if (HasFlag(wxFRAME_FLOAT_ON_PARENT))
 643     {
 644         wxWindow*                   pParent = GetParent();
 645
 646         if (pParent)
 647         {
 648             ::WinSetWindowPos( GetHwndOf(pParent)
 649                               ,HWND_TOP
 650                               ,0, 0, 0, 0
 651                               ,SWP_ZORDER
 652                              );
 653         }
 654     }
 655 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 656
 657 // ----------------------------------------------------------------------------
 658 // wxTopLevelWindowOS2 client size
 659 // ----------------------------------------------------------------------------
 660
 661 void wxTopLevelWindowOS2::DoSetClientSize(
 662   int                               nWidth
 663 , int                               nHeight
 664 )
 665 {
 666     //
 667     // Call GetClientAreaOrigin() to take the toolbar into account
 668     //
 669     wxPoint                         vPt = GetClientAreaOrigin();
 670
 671     nWidth  += vPt.x;
 672     nHeight += vPt.y;
 673
 674     wxWindow::DoSetClientSize( nWidth
 675                               ,nHeight
 676                              );
 677 } // end of wxTopLevelWindowOS2::DoSetClientSize
 678
 679 void wxTopLevelWindowOS2::DoGetClientSize(
 680   int*                              pnX
 681 , int*                              pnY
 682 ) const
 683 {
 684     wxWindow::DoGetClientSize( pnX
 685                               ,pnY
 686                              );
 687
 688     wxPoint                         vPt = GetClientAreaOrigin();
 689
 690     if (pnX)
 691         *pnX -= vPt.x;
 692
 693     if (pnY)
 694         *pnY += vPt.y;
 695 } // end of wxTopLevelWindowOS2::DoGetClientSize
 696
 697 // ----------------------------------------------------------------------------
 698 // wxTopLevelWindowOS2 showing
 699 // ----------------------------------------------------------------------------
 700
 701 void wxTopLevelWindowOS2::DoShowWindow(
 702   int                               nShowCmd
 703 )
 704 {
 705     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 706
 707     //
 708     // Need to artificially send a size event as wxApps often expect to do some
 709     // final child control sizing
 710     SendSizeEvent();
 711     m_bIconized = nShowCmd == SWP_MINIMIZE;
 712 } // end of wxTopLevelWindowOS2::DoShowWindow
 713
 714 bool wxTopLevelWindowOS2::Show(
 715   bool                              bShow
 716 )
 717 {
 718     int                             nShowCmd;
 719     SWP                             vSwp;
 720     RECTL                           vRect;
 721
 722     if (bShow != IsShown() )
 723     {
 724         m_isShown = bShow;
 725     }
 726     else
 727     {
 728         return FALSE;
 729     }
 730     if (bShow)
 731     {
 732         if (m_bMaximizeOnShow)
 733         {
 734             nShowCmd = SWP_MAXIMIZE;
 735             m_bMaximizeOnShow = FALSE;
 736         }
 737         else
 738         {
 739             nShowCmd = SWP_SHOW;
 740         }
 741     }
 742     else // hide
 743     {
 744         nShowCmd = SWP_HIDE;
 745     }
 746     DoShowWindow(nShowCmd);
 747
 748     if (bShow)
 749     {
 750         wxActivateEvent             vEvent(wxEVT_ACTIVATE, TRUE, m_windowId);
 751
 752         ::WinQueryWindowPos(m_hFrame, &vSwp);
 753         m_bIconized = vSwp.fl & SWP_MINIMIZE;
 754         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 755         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 756         ::WinQueryWindowPos(m_hWnd, &vSwp);
 757         ::WinEnableWindow(m_hFrame, TRUE);
 758
 759         //
 760         // Deal with children
 761         //
 762         MoveChildren(m_vSwpClient.cy - vSwp.cy);
 763         vEvent.SetEventObject(this);
 764         GetEventHandler()->ProcessEvent(vEvent);
 765     }
 766     else
 767     {
 768         //
 769         // Try to highlight the correct window (the parent)
 770         //
 771         if (GetParent())
 772         {
 773             HWND                    hWndParent = GetHwndOf(GetParent());
 774
 775             ::WinQueryWindowPos(hWndParent, &vSwp);
 776             m_bIconized = vSwp.fl & SWP_MINIMIZE;
 777             ::WinEnableWindow(hWndParent, TRUE);
 778         }
 779     }
 780     return TRUE;
 781 } // end of wxTopLevelWindowOS2::Show
 782
 783 // ----------------------------------------------------------------------------
 784 // wxTopLevelWindowOS2 maximize/minimize
 785 // ----------------------------------------------------------------------------
 786
 787 void wxTopLevelWindowOS2::Maximize(
 788   bool                              bMaximize
 789 )
 790 {
 791     if (IsShown())
 792     {
 793         //
 794         // Just maximize it directly
 795         //
 796         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 797     }
 798     else // hidden
 799     {
 800         //
 801         // We can't maximize the hidden frame because it shows it as well, so
 802         // just remember that we should do it later in this case
 803         //
 804         m_bMaximizeOnShow = bMaximize;
 805     }
 806 } // end of wxTopLevelWindowOS2::Maximize
 807
 808 bool wxTopLevelWindowOS2::IsMaximized() const
 809 {
 810     bool                            bIconic;
 811
 812     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 813     return (m_vSwp.fl & SWP_MAXIMIZE);
 814 } // end of wxTopLevelWindowOS2::IsMaximized
 815
 816 void wxTopLevelWindowOS2::Iconize(
 817   bool                              bIconize
 818 )
 819 {
 820     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 821 } // end of wxTopLevelWindowOS2::Iconize
 822
 823 bool wxTopLevelWindowOS2::IsIconized() const
 824 {
 825     // also update the current state
 826     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 827     if (m_vSwp.fl & SWP_MINIMIZE)
 828         ((wxTopLevelWindow*)this)->m_bIconized = TRUE;
 829     else
 830         ((wxTopLevelWindow*)this)->m_bIconized = FALSE;
 831     return m_bIconized;
 832 } // end of wxTopLevelWindowOS2::IsIconized
 833
 834 void wxTopLevelWindowOS2::Restore()
 835 {
 836     DoShowWindow(SWP_RESTORE);
 837 } // end of wxTopLevelWindowOS2::Restore
 838
 839 // generate an artificial resize event
 840 void wxTopLevelWindowOS2::SendSizeEvent()
 841 {
 842     if (!m_bIconized)
 843     {
 844         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 845
 846         (void)::WinPostMsg( m_hFrame
 847                            ,WM_SIZE
 848                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 849                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 850                           );
 851     }
 852 } // end of wxTopLevelWindowOS2::SendSizeEvent
 853
 854 // ----------------------------------------------------------------------------
 855 // wxTopLevelWindowOS2 fullscreen
 856 // ----------------------------------------------------------------------------
 857
 858 bool wxTopLevelWindowOS2::ShowFullScreen(
 859   bool                              bShow
 860 , long                              lStyle
 861 )
 862 {
 863     if (bShow)
 864     {
 865         if (IsFullScreen())
 866             return FALSE;
 867
 868         m_bFsIsShowing = TRUE;
 869         m_lFsStyle = lStyle;
 870
 871         //
 872         // Zap the frame borders
 873         //
 874
 875         //
 876         // Save the 'normal' window lStyle
 877         //
 878         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 879                                                     ,QWL_STYLE
 880                                                    );
 881
 882         //
 883         // Save the old position, width & height, maximize state
 884         //
 885         m_vFsOldSize = GetRect();
 886         m_bFsIsMaximized = IsMaximized();
 887
 888         //
 889         // Decide which window lStyle flags to turn off
 890         //
 891         LONG                        lNewStyle = m_lFsOldWindowStyle;
 892         LONG                        lOffFlags = 0;
 893
 894         if (lStyle & wxFULLSCREEN_NOBORDER)
 895             lOffFlags |= FCF_BORDER;
 896         if (lStyle & wxFULLSCREEN_NOCAPTION)
 897             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 898
 899         lNewStyle &= (~lOffFlags);
 900
 901         //
 902         // Change our window style to be compatible with full-screen mode
 903         //
 904         ::WinSetWindowULong( (HWND)GetHWND()
 905                             ,QWL_STYLE
 906                             ,lNewStyle
 907                            );
 908
 909         //
 910         // Resize to the size of the desktop
 911         //
 912         int                         nWidth;
 913         int                         nHeight;
 914         RECTL                       vRect = wxGetWindowRect(HWND_DESKTOP);
 915
 916         nWidth = vRect.xRight - vRect.xLeft;
 917         nHeight = vRect.yTop - vRect.yBottom;
 918
 919         SetSize( nWidth
 920                 ,nHeight
 921                );
 922
 923         //
 924         // Now flush the window style cache and actually go full-screen
 925         //
 926         ::WinSetWindowPos( m_hFrame
 927                           ,HWND_TOP
 928                           ,0
 929                           ,0
 930                           ,nWidth
 931                           ,nHeight
 932                           ,SWP_SIZE | SWP_MOVE
 933                          );
 934
 935         wxSizeEvent                 vEvent( wxSize( nWidth
 936                                                    ,nHeight
 937                                                   )
 938                                            ,GetId()
 939                                           );
 940
 941         GetEventHandler()->ProcessEvent(vEvent);
 942         return TRUE;
 943     }
 944     else
 945     {
 946         if (!IsFullScreen())
 947             return FALSE;
 948
 949         m_bFsIsShowing = FALSE;
 950         Maximize(m_bFsIsMaximized);
 951         ::WinSetWindowULong( (HWND)GetHWND()
 952                             ,QWL_STYLE
 953                             ,m_lFsOldWindowStyle
 954                            );
 955         ::WinSetWindowPos( m_hFrame
 956                           ,HWND_TOP
 957                           ,m_vFsOldSize.x
 958                           ,m_vFsOldSize.y
 959                           ,m_vFsOldSize.width
 960                           ,m_vFsOldSize.height
 961                           ,SWP_SIZE | SWP_MOVE
 962                          );
 963         return TRUE;
 964     }
 965 } // end of wxTopLevelWindowOS2::ShowFullScreen
 966
 967 // ----------------------------------------------------------------------------
 968 // wxTopLevelWindowOS2 misc
 969 // ----------------------------------------------------------------------------
 970
 971 void wxTopLevelWindowOS2::SetIcon(
 972   const wxIcon&                     rIcon
 973 )
 974 {
 975     SetIcons(wxIconBundle(rIcon));
 976 } // end of wxTopLevelWindowOS2::SetIcon
 977
 978 void wxTopLevelWindowOS2::SetIcons(
 979   const wxIconBundle&               rIcons
 980 )
 981 {
 982     //
 983     // This sets m_icon
 984     //
 985     wxTopLevelWindowBase::SetIcons(rIcons);
 986
 987     const wxIcon&                   vIcon = rIcons.GetIcon(wxSize(32, 32));
 988
 989     if (vIcon.Ok() && vIcon.GetWidth() == 32 && vIcon.GetHeight() == 32)
 990     {
 991         ::WinSendMsg( m_hFrame
 992                      ,WM_SETICON
 993                      ,(MPARAM)((HPOINTER)vIcon.GetHICON())
 994                      ,NULL
 995                     );
 996         ::WinSendMsg( m_hFrame
 997                      ,WM_UPDATEFRAME
 998                      ,(MPARAM)FCF_ICON
 999                      ,(MPARAM)0
1000                     );
1001     }
1002 } // end of wxTopLevelWindowOS2::SetIcon
1003
1004 bool wxTopLevelWindowOS2::EnableCloseButton(
1005   bool                              bEnable
1006 )
1007 {
1008     //
1009     // Get system (a.k.a. window) menu
1010     //
1011     HMENU                           hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
1012
1013     if (!hMenu)
1014     {
1015         wxLogLastError(_T("GetSystemMenu"));
1016         return FALSE;
1017     }
1018
1019     //
1020     // Enabling/disabling the close item from it also automatically
1021     // disables/enables the close title bar button
1022     //
1023     if (bEnable)
1024         (void)::WinSendMsg( hMenu
1025                            ,MM_SETITEMATTR
1026                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1027                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
1028                           );
1029     else
1030         (void)::WinSendMsg( hMenu
1031                            ,MM_SETITEMATTR
1032                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1033                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
1034                           );
1035
1036     //
1037     // Update appearance immediately
1038     //
1039     ::WinSendMsg( m_hFrame
1040                  ,WM_UPDATEFRAME
1041                  ,(MPARAM)FCF_MENU
1042                  ,(MPARAM)0
1043                 );
1044     return TRUE;
1045 } // end of wxTopLevelWindowOS2::EnableCloseButton
1046
1047 // ============================================================================
1048 // wxTLWHiddenParentModule implementation
1049 // ============================================================================
1050
1051 HWND          wxTLWHiddenParentModule::m_shWnd = NULL;
1052 const wxChar* wxTLWHiddenParentModule::m_szClassName = NULL;
1053
1054 bool wxTLWHiddenParentModule::OnInit()
1055 {
1056     m_shWnd = NULL;
1057     m_szClassName = NULL;
1058     return TRUE;
1059 } // end of wxTLWHiddenParentModule::OnInit
1060
1061 void wxTLWHiddenParentModule::OnExit()
1062 {
1063     if (m_shWnd)
1064     {
1065         if (!::WinDestroyWindow(m_shWnd))
1066         {
1067             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1068         }
1069         m_shWnd = NULL;
1070     }
1071
1072     m_szClassName = NULL;
1073 } // end of wxTLWHiddenParentModule::OnExit
1074
1075 /* static */
1076 HWND wxTLWHiddenParentModule::GetHWND()
1077 {
1078     if (!m_shWnd)
1079     {
1080         if (!m_szClassName)
1081         {
1082             static const wxChar*    zHIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1083
1084             if (!::WinRegisterClass( wxGetInstance()
1085                                     ,zHIDDEN_PARENT_CLASS
1086                                     ,NULL
1087                                     ,0
1088                                     ,sizeof(ULONG)
1089                                    ))
1090             {
1091                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1092             }
1093             else
1094             {
1095                 m_szClassName = zHIDDEN_PARENT_CLASS;
1096             }
1097         }
1098         m_shWnd = ::WinCreateWindow( HWND_DESKTOP
1099                                     ,m_szClassName
1100                                     ,""
1101                                     ,0L
1102                                     ,(LONG)0L
1103                                     ,(LONG)0L
1104                                     ,(LONG)0L
1105                                     ,(LONG)0L
1106                                     ,NULLHANDLE
1107                                     ,HWND_TOP
1108                                     ,0L
1109                                     ,NULL
1110                                     ,NULL
1111                                    );
1112         if (!m_shWnd)
1113         {
1114             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1115         }
1116     }
1117     return m_shWnd;
1118 } // end of wxTLWHiddenParentModule::GetHWND