src/os2/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 #include "wx/toplevel.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31     #include "wx/dialog.h"
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35     #include "wx/frame.h"
  36     #include "wx/control.h"
  37     #include "wx/containr.h"        // wxSetFocusToChild()
  38     #include "wx/settings.h"
  39     #include "wx/module.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/os2/private.h"
  43
  44 // ----------------------------------------------------------------------------
  45 // stubs for missing functions under MicroWindows
  46 // ----------------------------------------------------------------------------
  47
  48
  49 // ----------------------------------------------------------------------------
  50 // globals
  51 // ----------------------------------------------------------------------------
  52
  53 // the name of the default wxWidgets class
  54 extern void wxAssociateWinWithHandle( HWND hWnd, wxWindowOS2* pWin );
  55
  56 bool wxTopLevelWindowOS2::m_sbInitialized = false;
  57 wxWindow* wxTopLevelWindowOS2::m_spHiddenParent = NULL;
  58
  59 // ============================================================================
  60 // wxTopLevelWindowOS2 implementation
  61 // ============================================================================
  62
  63 BEGIN_EVENT_TABLE(wxTopLevelWindowOS2, wxTopLevelWindowBase)
  64     EVT_ACTIVATE(wxTopLevelWindowOS2::OnActivate)
  65 END_EVENT_TABLE()
  66
  67 // ============================================================================
  68 // wxTopLevelWindowMSW implementation
  69 // ============================================================================
  70
  71 // Dialog window proc
  72 MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
  73                            ,UINT uMessage
  74                            ,void * WXUNUSED(wParam)
  75                            ,void * WXUNUSED(lParam)
  76                           )
  77 {
  78     switch(uMessage)
  79     {
  80         case WM_INITDLG:
  81             //
  82             // For this message, returning TRUE tells system to set focus to
  83             // the first control in the dialog box, but we set the focus
  84             // ourselves, however in OS/2 we must return true to enable the dialog
  85             //
  86             return (MRESULT)TRUE;
  87         default:
  88             //
  89             // For all the other ones, FALSE means that we didn't process the
  90             // message
  91             //
  92             return (MRESULT)FALSE;
  93     }
  94 } // end of wxDlgProc
  95
  96 // ----------------------------------------------------------------------------
  97 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  98 // module to ensure that the window is always deleted)
  99 // ----------------------------------------------------------------------------
 100
 101 class wxTLWHiddenParentModule : public wxModule
 102 {
 103 public:
 104     //
 105     // Module init/finalize
 106     //
 107     virtual bool OnInit(void);
 108     virtual void OnExit(void);
 109
 110     //
 111     // Get the hidden window (creates on demand)
 112     //
 113     static HWND GetHWND(void);
 114
 115 private:
 116     //
 117     // The HWND of the hidden parent
 118     //
 119     static HWND m_shWnd;
 120
 121     //
 122     // The class used to create it
 123     //
 124     static const wxChar* m_szClassName;
 125     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 126 }; // end of CLASS wxTLWHiddenParentModule
 127
 128 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 129
 130 // ----------------------------------------------------------------------------
 131 // wxTopLevelWindowOS2 creation
 132 // ----------------------------------------------------------------------------
 133
 134 void wxTopLevelWindowOS2::Init()
 135 {
 136     m_bIconized = m_bMaximizeOnShow = false;
 137
 138     //
 139     // Unlike (almost?) all other windows, frames are created hidden
 140     //
 141     m_isShown = false;
 142
 143     //
 144     // Data to save/restore when calling ShowFullScreen
 145     m_lFsStyle          = 0;
 146     m_lFsOldWindowStyle = 0;
 147     m_bFsIsMaximized    = false;
 148     m_bFsIsShowing      = false;
 149
 150     m_hFrame    = NULLHANDLE;
 151     memset(&m_vSwp, 0, sizeof(SWP));
 152     memset(&m_vSwpClient, 0, sizeof(SWP));
 153     m_pWinLastFocused = NULL;
 154 } // end of wxTopLevelWindowIOS2::Init
 155
 156 void wxTopLevelWindowOS2::OnActivate(
 157   wxActivateEvent&                  rEvent
 158 )
 159 {
 160     if (rEvent.GetActive())
 161     {
 162         //
 163         // Restore focus to the child which was last focused
 164         //
 165         wxLogTrace(_T("focus"), _T("wxTLW %08lx activated."), m_hWnd);
 166
 167         wxWindow*                   pParent = m_pWinLastFocused ? m_pWinLastFocused->GetParent()
 168                                                                 : NULL;
 169         if (!pParent)
 170         {
 171             pParent = this;
 172         }
 173
 174         wxSetFocusToChild( pParent
 175                           ,&m_pWinLastFocused
 176                          );
 177     }
 178     else // deactivating
 179     {
 180         //
 181         // Remember the last focused child if it is our child
 182         //
 183         m_pWinLastFocused = FindFocus();
 184
 185         //
 186         // So we NULL it out if it's a child from some other frame
 187         //
 188         wxWindow*                   pWin = m_pWinLastFocused;
 189
 190         while (pWin)
 191         {
 192             if (pWin->IsTopLevel())
 193             {
 194                 if (pWin != this)
 195                 {
 196                     m_pWinLastFocused = NULL;
 197                 }
 198                 break;
 199             }
 200             pWin = pWin->GetParent();
 201         }
 202
 203         wxLogTrace(_T("focus"),
 204                    _T("wxTLW %08lx deactivated, last focused: %08lx."),
 205                    m_hWnd,
 206                    m_pWinLastFocused ? GetHwndOf(m_pWinLastFocused)
 207                                      : NULL);
 208         rEvent.Skip();
 209     }
 210 } // end of wxTopLevelWindowOS2::OnActivate
 211
 212 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
 213   long                              lStyle
 214 , WXDWORD*                          pdwExflags
 215 ) const
 216 {
 217     long                            lMsflags = wxWindow::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
 218                                                                      ,pdwExflags
 219                                                                     );
 220
 221     if ((lStyle & wxDEFAULT_FRAME_STYLE) == wxDEFAULT_FRAME_STYLE)
 222         lMsflags |= FCF_SIZEBORDER | FCF_TITLEBAR | FCF_SYSMENU |
 223                     FCF_MINMAX | FCF_TASKLIST;
 224
 225     if ((lStyle & wxCAPTION) == wxCAPTION)
 226         lMsflags |= FCF_TASKLIST;
 227     else
 228         lMsflags |= FCF_NOMOVEWITHOWNER;
 229
 230     if ((lStyle & wxVSCROLL) == wxVSCROLL)
 231         lMsflags |= FCF_VERTSCROLL;
 232     if ((lStyle & wxHSCROLL) == wxHSCROLL)
 233         lMsflags |= FCF_HORZSCROLL;
 234     if (lStyle & wxMINIMIZE_BOX)
 235         lMsflags |= FCF_MINBUTTON;
 236     if (lStyle & wxMAXIMIZE_BOX)
 237         lMsflags |= FCF_MAXBUTTON;
 238     if (lStyle & wxRESIZE_BORDER)
 239         lMsflags |= FCF_DLGBORDER;
 240     if (lStyle & wxSYSTEM_MENU)
 241         lMsflags |= FCF_SYSMENU;
 242     if (lStyle & wxCAPTION)
 243         lMsflags |= FCF_TASKLIST;
 244     if (lStyle & wxCLIP_CHILDREN)
 245     {
 246         // Invalid for frame windows under PM
 247     }
 248
 249     if (lStyle & wxTINY_CAPTION_VERT)
 250         lMsflags |= FCF_TASKLIST;
 251     if (lStyle & wxTINY_CAPTION_HORIZ)
 252         lMsflags |= FCF_TASKLIST;
 253
 254     if ((lStyle & wxRESIZE_BORDER) == 0)
 255         lMsflags |= FCF_BORDER;
 256     if (lStyle & wxFRAME_TOOL_WINDOW)
 257         *pdwExflags = kFrameToolWindow;
 258
 259     if (lStyle & wxSTAY_ON_TOP)
 260         lMsflags |= FCF_SYSMODAL;
 261
 262     return lMsflags;
 263 } // end of wxTopLevelWindowOS2::OS2GetCreateWindowFlags
 264
 265 WXHWND wxTopLevelWindowOS2::OS2GetParent() const
 266 {
 267     HWND                            hWndParent = NULL;
 268
 269     //
 270     // For the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 271     // parent HWND or it would be always on top of its parent which is not what
 272     // we usually want (in fact, we only want it for frames with the
 273     // wxFRAME_FLOAT_ON_PARENT flag)
 274     //
 275     if (HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 276     {
 277         const wxWindow*             pParent = GetParent();
 278
 279         if (!pParent)
 280         {
 281             //
 282             // This flag doesn't make sense then and will be ignored
 283             //
 284             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 285         }
 286         else
 287         {
 288             hWndParent = GetHwndOf(pParent);
 289         }
 290     }
 291     //else: don't float on parent, must not be owned
 292
 293     //
 294     // Now deal with the 2nd taskbar-related problem (see comments above in
 295     // OS2GetStyle())
 296     //
 297     if (HasFlag(wxFRAME_NO_TASKBAR) && !hWndParent)
 298     {
 299         //
 300         // Use hidden parent
 301         //
 302         hWndParent = wxTLWHiddenParentModule::GetHWND();
 303     }
 304     return (WXHWND)hWndParent;
 305 } // end of wxTopLevelWindowOS2::OS2GetParent
 306
 307
 308 bool wxTopLevelWindowOS2::CreateDialog( ULONG           ulDlgTemplate,
 309                                         const wxString& WXUNUSED(rsTitle),
 310                                         const wxPoint&  rPos,
 311                                         const wxSize&   rSize )
 312 {
 313     wxWindow*                       pParent = GetParent();
 314
 315     //
 316     // For the dialogs without wxDIALOG_NO_PARENT style, use the top level
 317     // app window as parent - this avoids creating modal dialogs without
 318     // parent
 319     //
 320     if (!pParent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT))
 321     {
 322         pParent = wxTheApp->GetTopWindow();
 323
 324         if (pParent)
 325         {
 326             //
 327             // Don't use transient windows as parents, this is dangerous as it
 328             // can lead to a crash if the parent is destroyed before the child
 329             //
 330             // also don't use the window which is currently hidden as then the
 331             // dialog would be hidden as well
 332             if ((pParent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 333                  !pParent->IsShown())
 334             {
 335                 pParent = NULL;
 336             }
 337         }
 338     }
 339
 340     HWND                            hWndDlg;
 341     HWND                            hWndOwner;
 342
 343     if (pParent)
 344         hWndOwner = GetHwndOf(pParent);
 345     else
 346         hWndOwner = HWND_DESKTOP;
 347
 348     hWndDlg = ::WinLoadDlg( HWND_DESKTOP
 349                            ,hWndOwner
 350                            ,(PFNWP)wxDlgProc
 351                            ,NULL
 352                            ,(ULONG)ulDlgTemplate
 353                            ,(PVOID)this
 354                           );
 355
 356     m_hWnd = (WXHWND) hWndDlg;
 357
 358     if ( !m_hWnd )
 359     {
 360         wxFAIL_MSG(wxT("Did you forget to include wx/os2/wx.rc in your resources?"));
 361
 362         wxLogSysError(wxT("Can't create dialog using template '%ld'"), ulDlgTemplate);
 363
 364         return false;
 365     }
 366
 367     //
 368     // Move the dialog to its initial position without forcing repainting
 369     //
 370     int                             nX;
 371     int                             nY;
 372     int                             nWidth;
 373     int                             nHeight;
 374
 375     if (!OS2GetCreateWindowCoords( rPos
 376                                   ,rSize
 377                                   ,nX
 378                                   ,nY
 379                                   ,nWidth
 380                                   ,nHeight
 381                                  ))
 382     {
 383         nX = nWidth = (int)CW_USEDEFAULT;
 384     }
 385
 386     //
 387     // We can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 388     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 389     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 390     // sizer calculation in wxSizer::Fit()
 391     //
 392     if (nWidth == (int)CW_USEDEFAULT)
 393     {
 394         //
 395         // The exact number doesn't matter, the dialog will be resized
 396         // again soon anyhow but it should be big enough to allow
 397         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 398         // at least greater than the title bar height
 399         //
 400         nWidth = nHeight = 100;
 401     }
 402     if (nX == (int)CW_USEDEFAULT)
 403     {
 404         //
 405         // Centre it on the screen - what else can we do?
 406         //
 407         wxSize                      vSizeDpy = wxGetDisplaySize();
 408
 409         nX = (vSizeDpy.x - nWidth) / 2;
 410         nY = (vSizeDpy.y - nHeight) / 2;
 411     }
 412     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 413
 414     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 415
 416     if (!::WinSetPresParam( m_hWnd
 417                            ,PP_BACKGROUNDCOLOR
 418                            ,sizeof(LONG)
 419                            ,(PVOID)&lColor
 420                           ))
 421     {
 422         return false;
 423     }
 424
 425     // Convert to OS/2 coordinates
 426     nY = GetOS2ParentHeight(pParent) - nY - nHeight;
 427
 428     ::WinSetWindowPos( GetHwnd()
 429                       ,HWND_TOP
 430                       ,nX
 431                       ,nY
 432                       ,nWidth
 433                       ,nHeight
 434                       ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW | SWP_ACTIVATE
 435                      );
 436     ::WinQueryWindowPos(GetHwnd(), GetSwp());
 437     m_hFrame = m_hWnd;
 438     SubclassWin(m_hWnd);
 439     return true;
 440 } // end of wxTopLevelWindowOS2::CreateDialog
 441
 442 bool wxTopLevelWindowOS2::CreateFrame( const wxString& rsTitle,
 443                                        const wxPoint& rPos,
 444                                        const wxSize& rSize )
 445 {
 446     WXDWORD    lExflags;
 447     WXDWORD    lFlags = OS2GetCreateWindowFlags(&lExflags);
 448     long       lStyle = GetWindowStyleFlag();
 449     int        nX = rPos.x;
 450     int        nY = rPos.y;
 451     int        nWidth = rSize.x;
 452     int        nHeight = rSize.y;
 453     ULONG      ulStyleFlags = 0L;
 454     ERRORID    vError;
 455     wxString   sError;
 456     wxWindow*  pParent = GetParent();
 457     HWND       hParent;
 458     HWND       hFrame;
 459     HWND       hClient;
 460
 461     if (pParent)
 462         hParent = GetHwndOf(pParent);
 463     else
 464         hParent = HWND_DESKTOP;
 465
 466     if ((lStyle & wxMINIMIZE) || (lStyle & wxICONIZE))
 467         ulStyleFlags |= WS_MINIMIZED;
 468     if (lStyle & wxMAXIMIZE)
 469         ulStyleFlags |= WS_MAXIMIZED;
 470
 471     //
 472     // Clear the visible flag, we always call show
 473     //
 474     ulStyleFlags &= (unsigned long)~WS_VISIBLE;
 475     m_bIconized = false;
 476
 477     //
 478     // Create the frame window:  We break ranks with other ports now
 479     // and instead of calling down into the base wxWindow class' OS2Create
 480     // we do all our own stuff here.  We will set the needed pieces
 481     // of wxWindow manually, here.
 482     //
 483
 484      hFrame = ::WinCreateStdWindow( hParent
 485                                    ,ulStyleFlags          // frame-window style
 486                                    ,(PULONG)&lFlags       // window style
 487                                    ,wxString(wxFrameClassName).c_str() // class name
 488                                    ,rsTitle.c_str()       // window title
 489                                    ,0L                    // default client style
 490                                    ,NULLHANDLE            // resource in executable file
 491                                    ,0                     // resource id
 492                                    ,&hClient              // receives client window handle
 493                                   );
 494     if (!hFrame)
 495     {
 496         vError = ::WinGetLastError(vHabmain);
 497         sError = wxPMErrorToStr(vError);
 498         wxLogError(_T("Error creating frame. Error: %s\n"), sError.c_str());
 499         return false;
 500     }
 501
 502     //
 503     // wxWindow class' m_hWnd set here and needed associations
 504     //
 505     m_hFrame = hFrame;
 506     m_hWnd   = hClient;
 507     wxAssociateWinWithHandle(m_hWnd, this);
 508     wxAssociateWinWithHandle(m_hFrame, this);
 509
 510     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 511
 512     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 513
 514     if (!::WinSetPresParam( m_hWnd
 515                            ,PP_BACKGROUNDCOLOR
 516                            ,sizeof(LONG)
 517                            ,(PVOID)&lColor
 518                           ))
 519     {
 520         vError = ::WinGetLastError(vHabmain);
 521         sError = wxPMErrorToStr(vError);
 522         wxLogError(_T("Error creating frame. Error: %s\n"), sError.c_str());
 523         return false;
 524     }
 525
 526     //
 527     // Now need to subclass window.  Instead of calling the SubClassWin in wxWindow
 528     // we manually subclass here because we don't want to use the main wxWndProc
 529     // by default
 530     //
 531     m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(m_hFrame, (PFNWP)wxFrameMainWndProc);
 532
 533     //
 534     // Now size everything.  If adding a menu the client will need to be resized.
 535     //
 536
 537     if (!OS2GetCreateWindowCoords( rPos
 538                                   ,rSize
 539                                   ,nX
 540                                   ,nY
 541                                   ,nWidth
 542                                   ,nHeight
 543                                  ))
 544     {
 545         nX = nWidth = (int)CW_USEDEFAULT;
 546     }
 547
 548     //
 549     // We can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 550     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 551     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 552     // sizer calculation in wxSizer::Fit()
 553     //
 554     if (nWidth == (int)CW_USEDEFAULT)
 555     {
 556         //
 557         // The exact number doesn't matter, the dialog will be resized
 558         // again soon anyhow but it should be big enough to allow
 559         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 560         // at least greater than the title bar height
 561         //
 562         nWidth = nHeight = 100;
 563     }
 564     if (nX == (int)CW_USEDEFAULT)
 565     {
 566         //
 567         // Centre it on the screen for now - what else can we do?
 568         // TODO: We could try FCF_SHELLPOSITION but it will require moving
 569         //       things around a bit.
 570         //
 571         wxSize                      vSizeDpy = wxGetDisplaySize();
 572
 573         nX = (vSizeDpy.x - nWidth) / 2;
 574         nY = (vSizeDpy.y - nHeight) / 2;
 575     }
 576
 577     // Convert to OS/2 coordinates
 578     nY = GetOS2ParentHeight(pParent) - nY - nHeight;
 579
 580     if (!::WinSetWindowPos( m_hFrame
 581                            ,HWND_TOP
 582                            ,nX
 583                            ,nY
 584                            ,nWidth
 585                            ,nHeight
 586                            ,SWP_SIZE | SWP_MOVE | SWP_ACTIVATE | SWP_ZORDER
 587                           ))
 588     {
 589         vError = ::WinGetLastError(vHabmain);
 590         sError = wxPMErrorToStr(vError);
 591         wxLogError(_T("Error sizing frame. Error: %s\n"), sError.c_str());
 592         return false;
 593     }
 594     lStyle =  ::WinQueryWindowULong( m_hWnd
 595                                     ,QWL_STYLE
 596                                    );
 597     lStyle |= WS_CLIPCHILDREN;
 598     ::WinSetWindowULong( m_hWnd
 599                         ,QWL_STYLE
 600                         ,lStyle
 601                        );
 602     return true;
 603 } // end of wxTopLevelWindowOS2::CreateFrame
 604
 605 bool wxTopLevelWindowOS2::Create(
 606   wxWindow*                         pParent
 607 , wxWindowID                        vId
 608 , const wxString&                   rsTitle
 609 , const wxPoint&                    rPos
 610 , const wxSize&                     rSizeOrig
 611 , long                              lStyle
 612 , const wxString&                   rsName
 613 )
 614 {
 615     //
 616     // Init our fields
 617     //
 618     Init();
 619     m_windowStyle = lStyle;
 620     SetName(rsName);
 621     m_windowId = vId == -1 ? NewControlId() : vId;
 622
 623     // always create a frame of some reasonable, even if arbitrary, size (at
 624     // least for MSW compatibility)
 625     wxSize rSize = rSizeOrig;
 626     if ( rSize.x == -1 || rSize.y == -1 )
 627     {
 628         wxSize sizeDpy = wxGetDisplaySize();
 629         if ( rSize.x == -1 )
 630             rSize.x = sizeDpy.x / 3;
 631         if ( rSize.y == -1 )
 632             rSize.y = sizeDpy.y / 5;
 633     }
 634
 635     wxTopLevelWindows.Append(this);
 636     if (pParent)
 637         pParent->AddChild(this);
 638
 639     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 640     {
 641         //
 642         // We have different dialog templates to allow creation of dialogs
 643         // with & without captions under OS2indows, resizeable or not (but a
 644         // resizeable dialog always has caption - otherwise it would look too
 645         // strange)
 646         //
 647         ULONG                       ulDlgTemplate;
 648
 649         if (lStyle & wxRESIZE_BORDER)
 650             ulDlgTemplate = (ULONG)kResizeableDialog;
 651         else if (lStyle & wxCAPTION)
 652             ulDlgTemplate = (ULONG)kCaptionDialog;
 653         else
 654             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 655         return CreateDialog( ulDlgTemplate
 656                             ,rsTitle
 657                             ,rPos
 658                             ,rSize
 659                            );
 660     }
 661     else // !dialog
 662     {
 663         return CreateFrame( rsTitle
 664                            ,rPos
 665                            ,rSize
 666                           );
 667     }
 668 } // end of wxTopLevelWindowOS2::Create
 669
 670 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 671 {
 672     //
 673     // After destroying an owned window, Windows activates the next top level
 674     // window in Z order but it may be different from our owner (to reproduce
 675     // this simply Alt-TAB to another application and back before closing the
 676     // owned frame) whereas we always want to yield activation to our parent
 677     //
 678     if (HasFlag(wxFRAME_FLOAT_ON_PARENT))
 679     {
 680         wxWindow*                   pParent = GetParent();
 681
 682         if (pParent)
 683         {
 684             ::WinSetWindowPos( GetHwndOf(pParent)
 685                               ,HWND_TOP
 686                               ,0, 0, 0, 0
 687                               ,SWP_ZORDER
 688                              );
 689         }
 690     }
 691 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 692
 693 // ----------------------------------------------------------------------------
 694 // wxTopLevelWindowOS2 client size
 695 // ----------------------------------------------------------------------------
 696
 697 void wxTopLevelWindowOS2::DoSetClientSize(
 698   int                               nWidth
 699 , int                               nHeight
 700 )
 701 {
 702     //
 703     // Call GetClientAreaOrigin() to take the toolbar into account
 704     //
 705     wxPoint                         vPt = GetClientAreaOrigin();
 706
 707     nWidth  += vPt.x;
 708     nHeight += vPt.y;
 709
 710     wxWindow::DoSetClientSize( nWidth
 711                               ,nHeight
 712                              );
 713 } // end of wxTopLevelWindowOS2::DoSetClientSize
 714
 715 void wxTopLevelWindowOS2::DoGetClientSize(
 716   int*                              pnX
 717 , int*                              pnY
 718 ) const
 719 {
 720     wxWindow::DoGetClientSize( pnX
 721                               ,pnY
 722                              );
 723
 724     wxPoint                         vPt = GetClientAreaOrigin();
 725
 726     if (pnX)
 727         *pnX -= vPt.x;
 728
 729     if (pnY)
 730         *pnY += vPt.y;
 731 } // end of wxTopLevelWindowOS2::DoGetClientSize
 732
 733 // ----------------------------------------------------------------------------
 734 // wxTopLevelWindowOS2 showing
 735 // ----------------------------------------------------------------------------
 736
 737 void wxTopLevelWindowOS2::DoShowWindow(
 738   int                               nShowCmd
 739 )
 740 {
 741     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 742
 743     //
 744     // Need to artificially send a size event as wxApps often expect to do some
 745     // final child control sizing
 746     SendSizeEvent();
 747     m_bIconized = nShowCmd == SWP_MINIMIZE;
 748 } // end of wxTopLevelWindowOS2::DoShowWindow
 749
 750 bool wxTopLevelWindowOS2::Show( bool bShow )
 751 {
 752     int nShowCmd;
 753     SWP vSwp;
 754
 755     if (bShow != IsShown() )
 756     {
 757         m_isShown = bShow;
 758     }
 759     else
 760     {
 761         return false;
 762     }
 763     if (bShow)
 764     {
 765         if (m_bMaximizeOnShow)
 766         {
 767             nShowCmd = SWP_MAXIMIZE;
 768             m_bMaximizeOnShow = false;
 769         }
 770         else
 771         {
 772             nShowCmd = SWP_SHOW;
 773         }
 774     }
 775     else // hide
 776     {
 777         nShowCmd = SWP_HIDE;
 778     }
 779     DoShowWindow(nShowCmd);
 780
 781     if (bShow)
 782     {
 783         wxActivateEvent vEvent(wxEVT_ACTIVATE, true, m_windowId);
 784
 785         ::WinQueryWindowPos(m_hFrame, &vSwp);
 786         m_bIconized = ( vSwp.fl & SWP_MINIMIZE ) == SWP_MINIMIZE ;
 787         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 788         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 789         ::WinQueryWindowPos(m_hWnd, &vSwp);
 790         ::WinEnableWindow(m_hFrame, TRUE);
 791
 792         vEvent.SetEventObject(this);
 793         HandleWindowEvent(vEvent);
 794     }
 795     else
 796     {
 797         //
 798         // Try to highlight the correct window (the parent)
 799         //
 800         if (GetParent())
 801         {
 802             HWND hWndParent = GetHwndOf(GetParent());
 803
 804             ::WinQueryWindowPos(hWndParent, &vSwp);
 805             m_bIconized = (vSwp.fl & SWP_MINIMIZE)==SWP_MINIMIZE;
 806             ::WinEnableWindow(hWndParent, TRUE);
 807         }
 808     }
 809     return true;
 810 } // end of wxTopLevelWindowOS2::Show
 811
 812 // ----------------------------------------------------------------------------
 813 // wxTopLevelWindowOS2 maximize/minimize
 814 // ----------------------------------------------------------------------------
 815
 816 void wxTopLevelWindowOS2::Maximize(
 817   bool                              bMaximize
 818 )
 819 {
 820     if (IsShown())
 821     {
 822         //
 823         // Just maximize it directly
 824         //
 825         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 826     }
 827     else // hidden
 828     {
 829         //
 830         // We can't maximize the hidden frame because it shows it as well, so
 831         // just remember that we should do it later in this case
 832         //
 833         m_bMaximizeOnShow = bMaximize;
 834     }
 835 } // end of wxTopLevelWindowOS2::Maximize
 836
 837 bool wxTopLevelWindowOS2::IsMaximized() const
 838 {
 839     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 840     return (m_vSwp.fl & SWP_MAXIMIZE) == SWP_MAXIMIZE;
 841 } // end of wxTopLevelWindowOS2::IsMaximized
 842
 843 void wxTopLevelWindowOS2::SetTitle( const wxString& title)
 844 {
 845     SetLabel(title);
 846 }
 847
 848 wxString wxTopLevelWindowOS2::GetTitle() const
 849 {
 850     return GetLabel();
 851 }
 852
 853 void wxTopLevelWindowOS2::Iconize( bool bIconize )
 854 {
 855     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 856 } // end of wxTopLevelWindowOS2::Iconize
 857
 858 bool wxTopLevelWindowOS2::IsIconized() const
 859 {
 860     // also update the current state
 861     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 862     if (m_vSwp.fl & SWP_MINIMIZE)
 863         ((wxTopLevelWindow*)this)->m_bIconized = true;
 864     else
 865         ((wxTopLevelWindow*)this)->m_bIconized = false;
 866     return m_bIconized;
 867 } // end of wxTopLevelWindowOS2::IsIconized
 868
 869 void wxTopLevelWindowOS2::Restore()
 870 {
 871     DoShowWindow(SWP_RESTORE);
 872 } // end of wxTopLevelWindowOS2::Restore
 873
 874 // generate an artificial resize event
 875 void wxTopLevelWindowOS2::SendSizeEvent(int flags)
 876 {
 877     if (!m_bIconized)
 878     {
 879         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 880
 881         if ( flags & wxSEND_EVENT_POST )
 882         {
 883             (void)::WinPostMsg( m_hFrame
 884                                ,WM_SIZE
 885                                ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 886                                ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 887                               );
 888         }
 889         else // send it
 890         {
 891             (void)::WinSendMsg( m_hFrame
 892                                ,WM_SIZE
 893                                ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 894                                ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 895                               );
 896         }
 897     }
 898 } // end of wxTopLevelWindowOS2::SendSizeEvent
 899
 900 // ----------------------------------------------------------------------------
 901 // wxTopLevelWindowOS2 fullscreen
 902 // ----------------------------------------------------------------------------
 903
 904 bool wxTopLevelWindowOS2::ShowFullScreen( bool bShow,
 905                                           long lStyle )
 906 {
 907     if (bShow)
 908     {
 909         if (IsFullScreen())
 910             return false;
 911
 912         m_bFsIsShowing = true;
 913         m_lFsStyle = lStyle;
 914
 915         //
 916         // Zap the frame borders
 917         //
 918
 919         //
 920         // Save the 'normal' window lStyle
 921         //
 922         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 923                                                     ,QWL_STYLE
 924                                                    );
 925
 926         //
 927         // Save the old position, width & height, maximize state
 928         //
 929         m_vFsOldSize = GetRect();
 930         m_bFsIsMaximized = IsMaximized();
 931
 932         //
 933         // Decide which window lStyle flags to turn off
 934         //
 935         LONG lNewStyle = m_lFsOldWindowStyle;
 936         LONG lOffFlags = 0;
 937
 938         if (lStyle & wxFULLSCREEN_NOBORDER)
 939             lOffFlags |= FCF_BORDER;
 940         if (lStyle & wxFULLSCREEN_NOCAPTION)
 941             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 942
 943         lNewStyle &= (~lOffFlags);
 944
 945         //
 946         // Change our window style to be compatible with full-screen mode
 947         //
 948         ::WinSetWindowULong( (HWND)GetHWND()
 949                             ,QWL_STYLE
 950                             ,lNewStyle
 951                            );
 952
 953         //
 954         // Resize to the size of the desktop
 955         //
 956         int   nWidth;
 957         int   nHeight;
 958         RECTL vRect = wxGetWindowRect(HWND_DESKTOP);
 959
 960         nWidth = vRect.xRight - vRect.xLeft;
 961         nHeight = vRect.yTop - vRect.yBottom;
 962
 963         SetSize( nWidth, nHeight );
 964
 965         //
 966         // Now flush the window style cache and actually go full-screen
 967         //
 968         ::WinSetWindowPos( m_hFrame
 969                           ,HWND_TOP
 970                           ,0
 971                           ,0
 972                           ,nWidth
 973                           ,nHeight
 974                           ,SWP_SIZE | SWP_MOVE
 975                          );
 976
 977         wxSize full( nWidth, nHeight );
 978         wxSizeEvent vEvent( full, GetId() );
 979         HandleWindowEvent(vEvent);
 980         return true;
 981     }
 982     else
 983     {
 984         if (!IsFullScreen())
 985             return false;
 986
 987         m_bFsIsShowing = false;
 988         Maximize(m_bFsIsMaximized);
 989         ::WinSetWindowULong( (HWND)GetHWND()
 990                             ,QWL_STYLE
 991                             ,m_lFsOldWindowStyle
 992                            );
 993         ::WinSetWindowPos( m_hFrame
 994                           ,HWND_TOP
 995                           ,m_vFsOldSize.x
 996                           ,m_vFsOldSize.y
 997                           ,m_vFsOldSize.width
 998                           ,m_vFsOldSize.height
 999                           ,SWP_SIZE | SWP_MOVE
1000                          );
1001         return true;
1002     }
1003 } // end of wxTopLevelWindowOS2::ShowFullScreen
1004
1005 // ----------------------------------------------------------------------------
1006 // wxTopLevelWindowOS2 misc
1007 // ----------------------------------------------------------------------------
1008
1009 void wxTopLevelWindowOS2::SetIcons(
1010   const wxIconBundle&               rIcons
1011 )
1012 {
1013     //
1014     // This sets m_icon
1015     //
1016     wxTopLevelWindowBase::SetIcons(rIcons);
1017
1018     const wxIcon& vIcon = rIcons.GetIconOfExactSize(32);
1019
1020     if (vIcon.Ok())
1021     {
1022         ::WinSendMsg( m_hFrame
1023                      ,WM_SETICON
1024                      ,(MPARAM)((HPOINTER)vIcon.GetHICON())
1025                      ,NULL
1026                     );
1027         ::WinSendMsg( m_hFrame
1028                      ,WM_UPDATEFRAME
1029                      ,(MPARAM)FCF_ICON
1030                      ,(MPARAM)0
1031                     );
1032     }
1033 } // end of wxTopLevelWindowOS2::SetIcon
1034
1035 bool wxTopLevelWindowOS2::EnableCloseButton( bool bEnable )
1036 {
1037     //
1038     // Get system (a.k.a. window) menu
1039     //
1040     HMENU hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
1041
1042     if (!hMenu)
1043     {
1044         wxLogLastError(_T("GetSystemMenu"));
1045         return false;
1046     }
1047
1048     //
1049     // Enabling/disabling the close item from it also automatically
1050     // disables/enables the close title bar button
1051     //
1052     if (bEnable)
1053         (void)::WinSendMsg( hMenu
1054                            ,MM_SETITEMATTR
1055                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1056                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
1057                           );
1058     else
1059         (void)::WinSendMsg( hMenu
1060                            ,MM_SETITEMATTR
1061                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1062                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
1063                           );
1064
1065     //
1066     // Update appearance immediately
1067     //
1068     ::WinSendMsg( m_hFrame
1069                  ,WM_UPDATEFRAME
1070                  ,(MPARAM)FCF_MENU
1071                  ,(MPARAM)0
1072                 );
1073     return true;
1074 } // end of wxTopLevelWindowOS2::EnableCloseButton
1075
1076 // ============================================================================
1077 // wxTLWHiddenParentModule implementation
1078 // ============================================================================
1079
1080 HWND          wxTLWHiddenParentModule::m_shWnd = NULL;
1081 const wxChar* wxTLWHiddenParentModule::m_szClassName = NULL;
1082
1083 bool wxTLWHiddenParentModule::OnInit()
1084 {
1085     m_shWnd = NULL;
1086     m_szClassName = NULL;
1087     return true;
1088 } // end of wxTLWHiddenParentModule::OnInit
1089
1090 void wxTLWHiddenParentModule::OnExit()
1091 {
1092     if (m_shWnd)
1093     {
1094         if (!::WinDestroyWindow(m_shWnd))
1095         {
1096             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1097         }
1098         m_shWnd = NULL;
1099     }
1100
1101     m_szClassName = NULL;
1102 } // end of wxTLWHiddenParentModule::OnExit
1103
1104 /* static */
1105 HWND wxTLWHiddenParentModule::GetHWND()
1106 {
1107     if (!m_shWnd)
1108     {
1109         if (!m_szClassName)
1110         {
1111             static const wxChar*    zHIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1112
1113             if (!::WinRegisterClass( wxGetInstance()
1114                                     ,(PSZ)zHIDDEN_PARENT_CLASS
1115                                     ,NULL
1116                                     ,0
1117                                     ,sizeof(ULONG)
1118                                    ))
1119             {
1120                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1121             }
1122             else
1123             {
1124                 m_szClassName = zHIDDEN_PARENT_CLASS;
1125             }
1126         }
1127         m_shWnd = ::WinCreateWindow( HWND_DESKTOP,
1128                                      (PSZ)m_szClassName,
1129                                      "",
1130                                      0L,
1131                                      (LONG)0L,
1132                                      (LONG)0L,
1133                                      (LONG)0L,
1134                                      (LONG)0L,
1135                                      NULLHANDLE,
1136                                      HWND_TOP,
1137                                      0L,
1138                                      NULL,
1139                                      NULL );
1140         if (!m_shWnd)
1141         {
1142             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1143         }
1144     }
1145     return m_shWnd;
1146 } // end of wxTLWHiddenParentModule::GetHWND