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