src/os2/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        os2/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for OS/2
   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/dialog.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38     #include "wx/frame.h"
  39     #include "wx/control.h"
  40     #include "wx/containr.h"        // wxSetFocusToChild()
  41 #endif //WX_PRECOMP
  42
  43 #include "wx/module.h"        // wxSetFocusToChild()
  44 #include "wx/os2/private.h"
  45
  46 // ----------------------------------------------------------------------------
  47 // stubs for missing functions under MicroWindows
  48 // ----------------------------------------------------------------------------
  49
  50
  51 // ----------------------------------------------------------------------------
  52 // globals
  53 // ----------------------------------------------------------------------------
  54
  55 // list of all frames and modeless dialogs
  56 wxWindowList wxModelessWindows;
  57
  58 // the name of the default wxWindows class
  59 extern void          wxAssociateWinWithHandle( HWND         hWnd
  60                                               ,wxWindowOS2* pWin
  61                                              );
  62 bool                 wxTopLevelWindowOS2::m_sbInitialized = FALSE;
  63 wxWindow*            wxTopLevelWindowOS2::m_spHiddenParent = NULL;
  64
  65 // ============================================================================
  66 // wxTopLevelWindowOS2 implementation
  67 // ============================================================================
  68
  69 BEGIN_EVENT_TABLE(wxTopLevelWindowOS2, wxTopLevelWindowBase)
  70     EVT_ACTIVATE(wxTopLevelWindowOS2::OnActivate)
  71 END_EVENT_TABLE()
  72
  73 // ============================================================================
  74 // wxTopLevelWindowMSW implementation
  75 // ============================================================================
  76
  77 // Dialog window proc
  78 MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
  79                            ,UINT uMessage
  80                            ,void * WXUNUSED(wParam)
  81                            ,void * WXUNUSED(lParam)
  82                           )
  83 {
  84     switch(uMessage)
  85     {
  86         case WM_INITDLG:
  87             //
  88             // For this message, returning TRUE tells system to set focus to
  89             // the first control in the dialog box, but we set the focus
  90             // ourselves, however in OS/2 we must return true to enable the dialog
  91             //
  92             return (MRESULT)TRUE;
  93         default:
  94             //
  95             // For all the other ones, FALSE means that we didn't process the
  96             // message
  97             //
  98             return (MRESULT)FALSE;
  99     }
 100 } // end of wxDlgProc
 101
 102 // ----------------------------------------------------------------------------
 103 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
 104 // module to ensure that the window is always deleted)
 105 // ----------------------------------------------------------------------------
 106
 107 class wxTLWHiddenParentModule : public wxModule
 108 {
 109 public:
 110     //
 111     // Module init/finalize
 112     //
 113     virtual bool OnInit(void);
 114     virtual void OnExit(void);
 115
 116     //
 117     // Get the hidden window (creates on demand)
 118     //
 119     static HWND GetHWND(void);
 120
 121 private:
 122     //
 123     // The HWND of the hidden parent
 124     //
 125     static HWND                     m_shWnd;
 126
 127     //
 128     // The class used to create it
 129     //
 130     static const wxChar*            m_szClassName;
 131     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 132 }; // end of CLASS wxTLWHiddenParentModule
 133
 134 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 135
 136 // ----------------------------------------------------------------------------
 137 // wxTopLevelWindowOS2 creation
 138 // ----------------------------------------------------------------------------
 139
 140 void wxTopLevelWindowOS2::Init()
 141 {
 142     m_bIconized = m_bMaximizeOnShow = FALSE;
 143
 144     //
 145     // Unlike (almost?) all other windows, frames are created hidden
 146     //
 147     m_isShown = FALSE;
 148
 149     //
 150     // Data to save/restore when calling ShowFullScreen
 151     m_lFsStyle          = 0;
 152     m_lFsOldWindowStyle = 0;
 153     m_bFsIsMaximized    = FALSE;
 154     m_bFsIsShowing      = FALSE;
 155
 156     m_hFrame    = NULLHANDLE;
 157     memset(&m_vSwp, 0, sizeof(SWP));
 158     memset(&m_vSwpClient, 0, sizeof(SWP));
 159     m_pWinLastFocused = (wxWindow *)NULL;
 160 } // end of wxTopLevelWindowIOS2::Init
 161
 162 void wxTopLevelWindowOS2::OnActivate(
 163   wxActivateEvent&                  rEvent
 164 )
 165 {
 166     if (rEvent.GetActive())
 167     {
 168         //
 169         // Restore focus to the child which was last focused
 170         //
 171         wxLogTrace(_T("focus"), _T("wxTLW %08lx activated."), m_hWnd);
 172
 173         wxWindow*                   pParent = m_pWinLastFocused ? m_pWinLastFocused->GetParent()
 174                                                                 : NULL;
 175         if (!pParent)
 176         {
 177             pParent = this;
 178         }
 179
 180         wxSetFocusToChild( pParent
 181                           ,&m_pWinLastFocused
 182                          );
 183     }
 184     else // deactivating
 185     {
 186         //
 187         // Remember the last focused child if it is our child
 188         //
 189         m_pWinLastFocused = FindFocus();
 190
 191         //
 192         // So we NULL it out if it's a child from some other frame
 193         //
 194         wxWindow*                   pWin = m_pWinLastFocused;
 195
 196         while (pWin)
 197         {
 198             if (pWin->IsTopLevel())
 199             {
 200                 if (pWin != this)
 201                 {
 202                     m_pWinLastFocused = NULL;
 203                 }
 204                 break;
 205             }
 206             pWin = pWin->GetParent();
 207         }
 208
 209         wxLogTrace(_T("focus"),
 210                    _T("wxTLW %08lx deactivated, last focused: %08lx."),
 211                    m_hWnd,
 212                    m_pWinLastFocused ? GetHwndOf(m_pWinLastFocused)
 213                                      : NULL);
 214         rEvent.Skip();
 215     }
 216 } // end of wxTopLevelWindowOS2::OnActivate
 217
 218 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
 219   long                              lStyle
 220 , WXDWORD*                          pdwExflags
 221 ) const
 222 {
 223     long                            lMsflags = wxWindow::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
 224                                                                      ,pdwExflags
 225                                                                     );
 226
 227     if ((lStyle & wxDEFAULT_FRAME_STYLE) == wxDEFAULT_FRAME_STYLE)
 228         lMsflags |= FCF_SIZEBORDER | FCF_TITLEBAR | FCF_SYSMENU |
 229                     FCF_MINMAX | FCF_TASKLIST;
 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 '%ld'"), 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&                     rSizeOrig
 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
 597     // always create a frame of some reasonable, even if arbitrary, size (at
 598     // least for MSW compatibility)
 599     wxSize rSize = rSizeOrig;
 600     if ( rSize.x == -1 || rSize.y == -1 )
 601     {
 602         wxSize sizeDpy = wxGetDisplaySize();
 603         if ( rSize.x == -1 )
 604             rSize.x = sizeDpy.x / 3;
 605         if ( rSize.y == -1 )
 606             rSize.y = sizeDpy.y / 5;
 607     }
 608
 609     wxTopLevelWindows.Append(this);
 610     if (pParent)
 611         pParent->AddChild(this);
 612
 613     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 614     {
 615         //
 616         // We have different dialog templates to allows creation of dialogs
 617         // with & without captions under OS2indows, resizeable or not (but a
 618         // resizeable dialog always has caption - otherwise it would look too
 619         // strange)
 620         //
 621         ULONG                       ulDlgTemplate;
 622
 623         if (lStyle & wxRESIZE_BORDER)
 624             ulDlgTemplate = (ULONG)kResizeableDialog;
 625         else if (lStyle & wxCAPTION)
 626             ulDlgTemplate = (ULONG)kCaptionDialog;
 627         else
 628             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 629         return CreateDialog( ulDlgTemplate
 630                             ,rsTitle
 631                             ,rPos
 632                             ,rSize
 633                            );
 634     }
 635     else // !dialog
 636     {
 637         return CreateFrame( rsTitle
 638                            ,rPos
 639                            ,rSize
 640                           );
 641     }
 642 } // end of wxTopLevelWindowOS2::Create
 643
 644 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 645 {
 646     if (wxModelessWindows.Find(this))
 647         wxModelessWindows.DeleteObject(this);
 648
 649     //
 650     // After destroying an owned window, Windows activates the next top level
 651     // window in Z order but it may be different from our owner (to reproduce
 652     // this simply Alt-TAB to another application and back before closing the
 653     // owned frame) whereas we always want to yield activation to our parent
 654     //
 655     if (HasFlag(wxFRAME_FLOAT_ON_PARENT))
 656     {
 657         wxWindow*                   pParent = GetParent();
 658
 659         if (pParent)
 660         {
 661             ::WinSetWindowPos( GetHwndOf(pParent)
 662                               ,HWND_TOP
 663                               ,0, 0, 0, 0
 664                               ,SWP_ZORDER
 665                              );
 666         }
 667     }
 668 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 669
 670 // ----------------------------------------------------------------------------
 671 // wxTopLevelWindowOS2 client size
 672 // ----------------------------------------------------------------------------
 673
 674 void wxTopLevelWindowOS2::DoSetClientSize(
 675   int                               nWidth
 676 , int                               nHeight
 677 )
 678 {
 679     //
 680     // Call GetClientAreaOrigin() to take the toolbar into account
 681     //
 682     wxPoint                         vPt = GetClientAreaOrigin();
 683
 684     nWidth  += vPt.x;
 685     nHeight += vPt.y;
 686
 687     wxWindow::DoSetClientSize( nWidth
 688                               ,nHeight
 689                              );
 690 } // end of wxTopLevelWindowOS2::DoSetClientSize
 691
 692 void wxTopLevelWindowOS2::DoGetClientSize(
 693   int*                              pnX
 694 , int*                              pnY
 695 ) const
 696 {
 697     wxWindow::DoGetClientSize( pnX
 698                               ,pnY
 699                              );
 700
 701     wxPoint                         vPt = GetClientAreaOrigin();
 702
 703     if (pnX)
 704         *pnX -= vPt.x;
 705
 706     if (pnY)
 707         *pnY += vPt.y;
 708 } // end of wxTopLevelWindowOS2::DoGetClientSize
 709
 710 // ----------------------------------------------------------------------------
 711 // wxTopLevelWindowOS2 showing
 712 // ----------------------------------------------------------------------------
 713
 714 void wxTopLevelWindowOS2::DoShowWindow(
 715   int                               nShowCmd
 716 )
 717 {
 718     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 719
 720     //
 721     // Need to artificially send a size event as wxApps often expect to do some
 722     // final child control sizing
 723     SendSizeEvent();
 724     m_bIconized = nShowCmd == SWP_MINIMIZE;
 725 } // end of wxTopLevelWindowOS2::DoShowWindow
 726
 727 bool wxTopLevelWindowOS2::Show(
 728   bool                              bShow
 729 )
 730 {
 731     int                             nShowCmd;
 732     SWP                             vSwp;
 733
 734     if (bShow != IsShown() )
 735     {
 736         m_isShown = bShow;
 737     }
 738     else
 739     {
 740         return FALSE;
 741     }
 742     if (bShow)
 743     {
 744         if (m_bMaximizeOnShow)
 745         {
 746             nShowCmd = SWP_MAXIMIZE;
 747             m_bMaximizeOnShow = FALSE;
 748         }
 749         else
 750         {
 751             nShowCmd = SWP_SHOW;
 752         }
 753     }
 754     else // hide
 755     {
 756         nShowCmd = SWP_HIDE;
 757     }
 758     DoShowWindow(nShowCmd);
 759
 760     if (bShow)
 761     {
 762         wxActivateEvent             vEvent(wxEVT_ACTIVATE, TRUE, m_windowId);
 763
 764         ::WinQueryWindowPos(m_hFrame, &vSwp);
 765         m_bIconized = vSwp.fl & SWP_MINIMIZE;
 766         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 767         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 768         ::WinQueryWindowPos(m_hWnd, &vSwp);
 769         ::WinEnableWindow(m_hFrame, TRUE);
 770
 771         //
 772         // Deal with children
 773         //
 774         MoveChildren(m_vSwpClient.cy - vSwp.cy);
 775         vEvent.SetEventObject(this);
 776         GetEventHandler()->ProcessEvent(vEvent);
 777     }
 778     else
 779     {
 780         //
 781         // Try to highlight the correct window (the parent)
 782         //
 783         if (GetParent())
 784         {
 785             HWND                    hWndParent = GetHwndOf(GetParent());
 786
 787             ::WinQueryWindowPos(hWndParent, &vSwp);
 788             m_bIconized = vSwp.fl & SWP_MINIMIZE;
 789             ::WinEnableWindow(hWndParent, TRUE);
 790         }
 791     }
 792     return TRUE;
 793 } // end of wxTopLevelWindowOS2::Show
 794
 795 // ----------------------------------------------------------------------------
 796 // wxTopLevelWindowOS2 maximize/minimize
 797 // ----------------------------------------------------------------------------
 798
 799 void wxTopLevelWindowOS2::Maximize(
 800   bool                              bMaximize
 801 )
 802 {
 803     if (IsShown())
 804     {
 805         //
 806         // Just maximize it directly
 807         //
 808         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 809     }
 810     else // hidden
 811     {
 812         //
 813         // We can't maximize the hidden frame because it shows it as well, so
 814         // just remember that we should do it later in this case
 815         //
 816         m_bMaximizeOnShow = bMaximize;
 817     }
 818 } // end of wxTopLevelWindowOS2::Maximize
 819
 820 bool wxTopLevelWindowOS2::IsMaximized() const
 821 {
 822
 823     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 824     return (m_vSwp.fl & SWP_MAXIMIZE);
 825 } // end of wxTopLevelWindowOS2::IsMaximized
 826
 827 void wxTopLevelWindowOS2::Iconize(
 828   bool                              bIconize
 829 )
 830 {
 831     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 832 } // end of wxTopLevelWindowOS2::Iconize
 833
 834 bool wxTopLevelWindowOS2::IsIconized() const
 835 {
 836     // also update the current state
 837     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 838     if (m_vSwp.fl & SWP_MINIMIZE)
 839         ((wxTopLevelWindow*)this)->m_bIconized = TRUE;
 840     else
 841         ((wxTopLevelWindow*)this)->m_bIconized = FALSE;
 842     return m_bIconized;
 843 } // end of wxTopLevelWindowOS2::IsIconized
 844
 845 void wxTopLevelWindowOS2::Restore()
 846 {
 847     DoShowWindow(SWP_RESTORE);
 848 } // end of wxTopLevelWindowOS2::Restore
 849
 850 // generate an artificial resize event
 851 void wxTopLevelWindowOS2::SendSizeEvent()
 852 {
 853     if (!m_bIconized)
 854     {
 855         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 856
 857         (void)::WinPostMsg( m_hFrame
 858                            ,WM_SIZE
 859                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 860                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 861                           );
 862     }
 863 } // end of wxTopLevelWindowOS2::SendSizeEvent
 864
 865 // ----------------------------------------------------------------------------
 866 // wxTopLevelWindowOS2 fullscreen
 867 // ----------------------------------------------------------------------------
 868
 869 bool wxTopLevelWindowOS2::ShowFullScreen(
 870   bool                              bShow
 871 , long                              lStyle
 872 )
 873 {
 874     if (bShow)
 875     {
 876         if (IsFullScreen())
 877             return FALSE;
 878
 879         m_bFsIsShowing = TRUE;
 880         m_lFsStyle = lStyle;
 881
 882         //
 883         // Zap the frame borders
 884         //
 885
 886         //
 887         // Save the 'normal' window lStyle
 888         //
 889         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 890                                                     ,QWL_STYLE
 891                                                    );
 892
 893         //
 894         // Save the old position, width & height, maximize state
 895         //
 896         m_vFsOldSize = GetRect();
 897         m_bFsIsMaximized = IsMaximized();
 898
 899         //
 900         // Decide which window lStyle flags to turn off
 901         //
 902         LONG                        lNewStyle = m_lFsOldWindowStyle;
 903         LONG                        lOffFlags = 0;
 904
 905         if (lStyle & wxFULLSCREEN_NOBORDER)
 906             lOffFlags |= FCF_BORDER;
 907         if (lStyle & wxFULLSCREEN_NOCAPTION)
 908             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 909
 910         lNewStyle &= (~lOffFlags);
 911
 912         //
 913         // Change our window style to be compatible with full-screen mode
 914         //
 915         ::WinSetWindowULong( (HWND)GetHWND()
 916                             ,QWL_STYLE
 917                             ,lNewStyle
 918                            );
 919
 920         //
 921         // Resize to the size of the desktop
 922         //
 923         int                         nWidth;
 924         int                         nHeight;
 925         RECTL                       vRect = wxGetWindowRect(HWND_DESKTOP);
 926
 927         nWidth = vRect.xRight - vRect.xLeft;
 928         nHeight = vRect.yTop - vRect.yBottom;
 929
 930         SetSize( nWidth
 931                 ,nHeight
 932                );
 933
 934         //
 935         // Now flush the window style cache and actually go full-screen
 936         //
 937         ::WinSetWindowPos( m_hFrame
 938                           ,HWND_TOP
 939                           ,0
 940                           ,0
 941                           ,nWidth
 942                           ,nHeight
 943                           ,SWP_SIZE | SWP_MOVE
 944                          );
 945
 946         wxSizeEvent                 vEvent( wxSize( nWidth
 947                                                    ,nHeight
 948                                                   )
 949                                            ,GetId()
 950                                           );
 951
 952         GetEventHandler()->ProcessEvent(vEvent);
 953         return TRUE;
 954     }
 955     else
 956     {
 957         if (!IsFullScreen())
 958             return FALSE;
 959
 960         m_bFsIsShowing = FALSE;
 961         Maximize(m_bFsIsMaximized);
 962         ::WinSetWindowULong( (HWND)GetHWND()
 963                             ,QWL_STYLE
 964                             ,m_lFsOldWindowStyle
 965                            );
 966         ::WinSetWindowPos( m_hFrame
 967                           ,HWND_TOP
 968                           ,m_vFsOldSize.x
 969                           ,m_vFsOldSize.y
 970                           ,m_vFsOldSize.width
 971                           ,m_vFsOldSize.height
 972                           ,SWP_SIZE | SWP_MOVE
 973                          );
 974         return TRUE;
 975     }
 976 } // end of wxTopLevelWindowOS2::ShowFullScreen
 977
 978 // ----------------------------------------------------------------------------
 979 // wxTopLevelWindowOS2 misc
 980 // ----------------------------------------------------------------------------
 981
 982 void wxTopLevelWindowOS2::SetIcon(
 983   const wxIcon&                     rIcon
 984 )
 985 {
 986     SetIcons(wxIconBundle(rIcon));
 987 } // end of wxTopLevelWindowOS2::SetIcon
 988
 989 void wxTopLevelWindowOS2::SetIcons(
 990   const wxIconBundle&               rIcons
 991 )
 992 {
 993     //
 994     // This sets m_icon
 995     //
 996     wxTopLevelWindowBase::SetIcons(rIcons);
 997
 998     const wxIcon&                   vIcon = rIcons.GetIcon(wxSize(32, 32));
 999
1000     if (vIcon.Ok() && vIcon.GetWidth() == 32 && vIcon.GetHeight() == 32)
1001     {
1002         ::WinSendMsg( m_hFrame
1003                      ,WM_SETICON
1004                      ,(MPARAM)((HPOINTER)vIcon.GetHICON())
1005                      ,NULL
1006                     );
1007         ::WinSendMsg( m_hFrame
1008                      ,WM_UPDATEFRAME
1009                      ,(MPARAM)FCF_ICON
1010                      ,(MPARAM)0
1011                     );
1012     }
1013 } // end of wxTopLevelWindowOS2::SetIcon
1014
1015 bool wxTopLevelWindowOS2::EnableCloseButton(
1016   bool                              bEnable
1017 )
1018 {
1019     //
1020     // Get system (a.k.a. window) menu
1021     //
1022     HMENU                           hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
1023
1024     if (!hMenu)
1025     {
1026         wxLogLastError(_T("GetSystemMenu"));
1027         return FALSE;
1028     }
1029
1030     //
1031     // Enabling/disabling the close item from it also automatically
1032     // disables/enables the close title bar button
1033     //
1034     if (bEnable)
1035         (void)::WinSendMsg( hMenu
1036                            ,MM_SETITEMATTR
1037                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1038                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
1039                           );
1040     else
1041         (void)::WinSendMsg( hMenu
1042                            ,MM_SETITEMATTR
1043                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1044                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
1045                           );
1046
1047     //
1048     // Update appearance immediately
1049     //
1050     ::WinSendMsg( m_hFrame
1051                  ,WM_UPDATEFRAME
1052                  ,(MPARAM)FCF_MENU
1053                  ,(MPARAM)0
1054                 );
1055     return TRUE;
1056 } // end of wxTopLevelWindowOS2::EnableCloseButton
1057
1058 // ============================================================================
1059 // wxTLWHiddenParentModule implementation
1060 // ============================================================================
1061
1062 HWND          wxTLWHiddenParentModule::m_shWnd = NULL;
1063 const wxChar* wxTLWHiddenParentModule::m_szClassName = NULL;
1064
1065 bool wxTLWHiddenParentModule::OnInit()
1066 {
1067     m_shWnd = NULL;
1068     m_szClassName = NULL;
1069     return TRUE;
1070 } // end of wxTLWHiddenParentModule::OnInit
1071
1072 void wxTLWHiddenParentModule::OnExit()
1073 {
1074     if (m_shWnd)
1075     {
1076         if (!::WinDestroyWindow(m_shWnd))
1077         {
1078             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1079         }
1080         m_shWnd = NULL;
1081     }
1082
1083     m_szClassName = NULL;
1084 } // end of wxTLWHiddenParentModule::OnExit
1085
1086 /* static */
1087 HWND wxTLWHiddenParentModule::GetHWND()
1088 {
1089     if (!m_shWnd)
1090     {
1091         if (!m_szClassName)
1092         {
1093             static const wxChar*    zHIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1094
1095             if (!::WinRegisterClass( wxGetInstance()
1096                                     ,zHIDDEN_PARENT_CLASS
1097                                     ,NULL
1098                                     ,0
1099                                     ,sizeof(ULONG)
1100                                    ))
1101             {
1102                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1103             }
1104             else
1105             {
1106                 m_szClassName = zHIDDEN_PARENT_CLASS;
1107             }
1108         }
1109         m_shWnd = ::WinCreateWindow( HWND_DESKTOP
1110                                     ,m_szClassName
1111                                     ,""
1112                                     ,0L
1113                                     ,(LONG)0L
1114                                     ,(LONG)0L
1115                                     ,(LONG)0L
1116                                     ,(LONG)0L
1117                                     ,NULLHANDLE
1118                                     ,HWND_TOP
1119                                     ,0L
1120                                     ,NULL
1121                                     ,NULL
1122                                    );
1123         if (!m_shWnd)
1124         {
1125             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1126         }
1127     }
1128     return m_shWnd;
1129 } // end of wxTLWHiddenParentModule::GetHWND