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 #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     #include "wx/settings.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/module.h"        // wxSetFocusToChild()
  41 #include "wx/os2/private.h"
  42
  43 // ----------------------------------------------------------------------------
  44 // stubs for missing functions under MicroWindows
  45 // ----------------------------------------------------------------------------
  46
  47
  48 // ----------------------------------------------------------------------------
  49 // globals
  50 // ----------------------------------------------------------------------------
  51
  52 // the name of the default wxWidgets class
  53 extern void wxAssociateWinWithHandle( HWND hWnd, 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     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 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( const wxString& rsTitle,
 439                                        const wxPoint& rPos,
 440                                        const wxSize& rSize )
 441 {
 442     WXDWORD    lExflags;
 443     WXDWORD    lFlags = OS2GetCreateWindowFlags(&lExflags);
 444     long       lStyle = GetWindowStyleFlag();
 445     int        nX = rPos.x;
 446     int        nY = rPos.y;
 447     int        nWidth = rSize.x;
 448     int        nHeight = rSize.y;
 449     ULONG      ulStyleFlags = 0L;
 450     ERRORID    vError;
 451     wxString   sError;
 452     wxWindow*  pParent = GetParent();
 453     HWND       hParent;
 454     HWND       hFrame;
 455     HWND       hClient;
 456
 457     if (pParent)
 458         hParent = GetHwndOf(pParent);
 459     else
 460         hParent = HWND_DESKTOP;
 461
 462     if ((lStyle & wxMINIMIZE) || (lStyle & wxICONIZE))
 463         ulStyleFlags |= WS_MINIMIZED;
 464     if (lStyle & wxMAXIMIZE)
 465         ulStyleFlags |= WS_MAXIMIZED;
 466
 467     //
 468     // Clear the visible flag, we always call show
 469     //
 470     ulStyleFlags &= (unsigned long)~WS_VISIBLE;
 471     m_bIconized = false;
 472
 473     //
 474     // Create the frame window:  We break ranks with other ports now
 475     // and instead of calling down into the base wxWindow class' OS2Create
 476     // we do all our own stuff here.  We will set the needed pieces
 477     // of wxWindow manually, here.
 478     //
 479
 480      hFrame = ::WinCreateStdWindow( hParent
 481                                    ,ulStyleFlags          // frame-window style
 482                                    ,(PULONG)&lFlags       // window style
 483                                    ,(PSZ)wxFrameClassName // class name
 484                                    ,(PSZ)rsTitle.c_str()  // window title
 485                                    ,0L                    // default client style
 486                                    ,NULLHANDLE            // resource in executable file
 487                                    ,0                     // resource id
 488                                    ,&hClient              // receives client window handle
 489                                   );
 490     if (!hFrame)
 491     {
 492         vError = ::WinGetLastError(vHabmain);
 493         sError = wxPMErrorToStr(vError);
 494         wxLogError(_T("Error creating frame. Error: %s\n"), sError.c_str());
 495         return false;
 496     }
 497
 498     //
 499     // wxWindow class' m_hWnd set here and needed associations
 500     //
 501     m_hFrame = hFrame;
 502     m_hWnd   = hClient;
 503     wxAssociateWinWithHandle(m_hWnd, this);
 504     wxAssociateWinWithHandle(m_hFrame, this);
 505
 506     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 507
 508     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 509
 510     if (!::WinSetPresParam( m_hWnd
 511                            ,PP_BACKGROUNDCOLOR
 512                            ,sizeof(LONG)
 513                            ,(PVOID)&lColor
 514                           ))
 515     {
 516         vError = ::WinGetLastError(vHabmain);
 517         sError = wxPMErrorToStr(vError);
 518         wxLogError(_T("Error creating frame. Error: %s\n"), sError.c_str());
 519         return false;
 520     }
 521
 522     //
 523     // Now need to subclass window.  Instead of calling the SubClassWin in wxWindow
 524     // we manually subclass here because we don't want to use the main wxWndProc
 525     // by default
 526     //
 527     m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(m_hFrame, (PFNWP)wxFrameMainWndProc);
 528
 529     //
 530     // Now size everything.  If adding a menu the client will need to be resized.
 531     //
 532
 533     if (pParent)
 534     {
 535         nY = pParent->GetSize().y - (nY + nHeight);
 536     }
 537     else
 538     {
 539         RECTL                   vRect;
 540
 541         ::WinQueryWindowRect(HWND_DESKTOP, &vRect);
 542         nY = vRect.yTop - (nY + nHeight);
 543     }
 544     if (!::WinSetWindowPos( m_hFrame
 545                            ,HWND_TOP
 546                            ,nX
 547                            ,nY
 548                            ,nWidth
 549                            ,nHeight
 550                            ,SWP_SIZE | SWP_MOVE | SWP_ACTIVATE | SWP_ZORDER
 551                           ))
 552     {
 553         vError = ::WinGetLastError(vHabmain);
 554         sError = wxPMErrorToStr(vError);
 555         wxLogError(_T("Error sizing frame. Error: %s\n"), sError.c_str());
 556         return false;
 557     }
 558     lStyle =  ::WinQueryWindowULong( m_hWnd
 559                                     ,QWL_STYLE
 560                                    );
 561     lStyle |= WS_CLIPCHILDREN;
 562     ::WinSetWindowULong( m_hWnd
 563                         ,QWL_STYLE
 564                         ,lStyle
 565                        );
 566     return true;
 567 } // end of wxTopLevelWindowOS2::CreateFrame
 568
 569 bool wxTopLevelWindowOS2::Create(
 570   wxWindow*                         pParent
 571 , wxWindowID                        vId
 572 , const wxString&                   rsTitle
 573 , const wxPoint&                    rPos
 574 , const wxSize&                     rSizeOrig
 575 , long                              lStyle
 576 , const wxString&                   rsName
 577 )
 578 {
 579     //
 580     // Init our fields
 581     //
 582     Init();
 583     m_windowStyle = lStyle;
 584     SetName(rsName);
 585     m_windowId = vId == -1 ? NewControlId() : vId;
 586
 587     // always create a frame of some reasonable, even if arbitrary, size (at
 588     // least for MSW compatibility)
 589     wxSize rSize = rSizeOrig;
 590     if ( rSize.x == -1 || rSize.y == -1 )
 591     {
 592         wxSize sizeDpy = wxGetDisplaySize();
 593         if ( rSize.x == -1 )
 594             rSize.x = sizeDpy.x / 3;
 595         if ( rSize.y == -1 )
 596             rSize.y = sizeDpy.y / 5;
 597     }
 598
 599     wxTopLevelWindows.Append(this);
 600     if (pParent)
 601         pParent->AddChild(this);
 602
 603     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 604     {
 605         //
 606         // We have different dialog templates to allow creation of dialogs
 607         // with & without captions under OS2indows, resizeable or not (but a
 608         // resizeable dialog always has caption - otherwise it would look too
 609         // strange)
 610         //
 611         ULONG                       ulDlgTemplate;
 612
 613         if (lStyle & wxRESIZE_BORDER)
 614             ulDlgTemplate = (ULONG)kResizeableDialog;
 615         else if (lStyle & wxCAPTION)
 616             ulDlgTemplate = (ULONG)kCaptionDialog;
 617         else
 618             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 619         return CreateDialog( ulDlgTemplate
 620                             ,rsTitle
 621                             ,rPos
 622                             ,rSize
 623                            );
 624     }
 625     else // !dialog
 626     {
 627         return CreateFrame( rsTitle
 628                            ,rPos
 629                            ,rSize
 630                           );
 631     }
 632 } // end of wxTopLevelWindowOS2::Create
 633
 634 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 635 {
 636     //
 637     // After destroying an owned window, Windows activates the next top level
 638     // window in Z order but it may be different from our owner (to reproduce
 639     // this simply Alt-TAB to another application and back before closing the
 640     // owned frame) whereas we always want to yield activation to our parent
 641     //
 642     if (HasFlag(wxFRAME_FLOAT_ON_PARENT))
 643     {
 644         wxWindow*                   pParent = GetParent();
 645
 646         if (pParent)
 647         {
 648             ::WinSetWindowPos( GetHwndOf(pParent)
 649                               ,HWND_TOP
 650                               ,0, 0, 0, 0
 651                               ,SWP_ZORDER
 652                              );
 653         }
 654     }
 655 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 656
 657 // ----------------------------------------------------------------------------
 658 // wxTopLevelWindowOS2 client size
 659 // ----------------------------------------------------------------------------
 660
 661 void wxTopLevelWindowOS2::DoSetClientSize(
 662   int                               nWidth
 663 , int                               nHeight
 664 )
 665 {
 666     //
 667     // Call GetClientAreaOrigin() to take the toolbar into account
 668     //
 669     wxPoint                         vPt = GetClientAreaOrigin();
 670
 671     nWidth  += vPt.x;
 672     nHeight += vPt.y;
 673
 674     wxWindow::DoSetClientSize( nWidth
 675                               ,nHeight
 676                              );
 677 } // end of wxTopLevelWindowOS2::DoSetClientSize
 678
 679 void wxTopLevelWindowOS2::DoGetClientSize(
 680   int*                              pnX
 681 , int*                              pnY
 682 ) const
 683 {
 684     wxWindow::DoGetClientSize( pnX
 685                               ,pnY
 686                              );
 687
 688     wxPoint                         vPt = GetClientAreaOrigin();
 689
 690     if (pnX)
 691         *pnX -= vPt.x;
 692
 693     if (pnY)
 694         *pnY += vPt.y;
 695 } // end of wxTopLevelWindowOS2::DoGetClientSize
 696
 697 // ----------------------------------------------------------------------------
 698 // wxTopLevelWindowOS2 showing
 699 // ----------------------------------------------------------------------------
 700
 701 void wxTopLevelWindowOS2::DoShowWindow(
 702   int                               nShowCmd
 703 )
 704 {
 705     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 706
 707     //
 708     // Need to artificially send a size event as wxApps often expect to do some
 709     // final child control sizing
 710     SendSizeEvent();
 711     m_bIconized = nShowCmd == SWP_MINIMIZE;
 712 } // end of wxTopLevelWindowOS2::DoShowWindow
 713
 714 bool wxTopLevelWindowOS2::Show( bool bShow )
 715 {
 716     int nShowCmd;
 717     SWP vSwp;
 718
 719     if (bShow != IsShown() )
 720     {
 721         m_isShown = bShow;
 722     }
 723     else
 724     {
 725         return false;
 726     }
 727     if (bShow)
 728     {
 729         if (m_bMaximizeOnShow)
 730         {
 731             nShowCmd = SWP_MAXIMIZE;
 732             m_bMaximizeOnShow = false;
 733         }
 734         else
 735         {
 736             nShowCmd = SWP_SHOW;
 737         }
 738     }
 739     else // hide
 740     {
 741         nShowCmd = SWP_HIDE;
 742     }
 743     DoShowWindow(nShowCmd);
 744
 745     if (bShow)
 746     {
 747         wxActivateEvent vEvent(wxEVT_ACTIVATE, true, m_windowId);
 748
 749         ::WinQueryWindowPos(m_hFrame, &vSwp);
 750         m_bIconized = ( vSwp.fl & SWP_MINIMIZE ) == SWP_MINIMIZE ;
 751         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 752         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 753         ::WinQueryWindowPos(m_hWnd, &vSwp);
 754         ::WinEnableWindow(m_hFrame, TRUE);
 755
 756         //
 757         // Deal with children
 758         //
 759         MoveChildren(m_vSwpClient.cy - vSwp.cy);
 760         vEvent.SetEventObject(this);
 761         GetEventHandler()->ProcessEvent(vEvent);
 762     }
 763     else
 764     {
 765         //
 766         // Try to highlight the correct window (the parent)
 767         //
 768         if (GetParent())
 769         {
 770             HWND hWndParent = GetHwndOf(GetParent());
 771
 772             ::WinQueryWindowPos(hWndParent, &vSwp);
 773             m_bIconized = (vSwp.fl & SWP_MINIMIZE)==SWP_MINIMIZE;
 774             ::WinEnableWindow(hWndParent, TRUE);
 775         }
 776     }
 777     return true;
 778 } // end of wxTopLevelWindowOS2::Show
 779
 780 // ----------------------------------------------------------------------------
 781 // wxTopLevelWindowOS2 maximize/minimize
 782 // ----------------------------------------------------------------------------
 783
 784 void wxTopLevelWindowOS2::Maximize(
 785   bool                              bMaximize
 786 )
 787 {
 788     if (IsShown())
 789     {
 790         //
 791         // Just maximize it directly
 792         //
 793         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 794     }
 795     else // hidden
 796     {
 797         //
 798         // We can't maximize the hidden frame because it shows it as well, so
 799         // just remember that we should do it later in this case
 800         //
 801         m_bMaximizeOnShow = bMaximize;
 802     }
 803 } // end of wxTopLevelWindowOS2::Maximize
 804
 805 bool wxTopLevelWindowOS2::IsMaximized() const
 806 {
 807     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 808     return (m_vSwp.fl & SWP_MAXIMIZE) == SWP_MAXIMIZE;
 809 } // end of wxTopLevelWindowOS2::IsMaximized
 810
 811 void wxTopLevelWindowOS2::SetTitle( const wxString& title)
 812 {
 813     SetLabel(title);
 814 }
 815
 816 wxString wxTopLevelWindowOS2::GetTitle() const
 817 {
 818     return GetLabel();
 819 }
 820
 821 void wxTopLevelWindowOS2::Iconize( bool bIconize )
 822 {
 823     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 824 } // end of wxTopLevelWindowOS2::Iconize
 825
 826 bool wxTopLevelWindowOS2::IsIconized() const
 827 {
 828     // also update the current state
 829     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 830     if (m_vSwp.fl & SWP_MINIMIZE)
 831         ((wxTopLevelWindow*)this)->m_bIconized = true;
 832     else
 833         ((wxTopLevelWindow*)this)->m_bIconized = false;
 834     return m_bIconized;
 835 } // end of wxTopLevelWindowOS2::IsIconized
 836
 837 void wxTopLevelWindowOS2::Restore()
 838 {
 839     DoShowWindow(SWP_RESTORE);
 840 } // end of wxTopLevelWindowOS2::Restore
 841
 842 // generate an artificial resize event
 843 void wxTopLevelWindowOS2::SendSizeEvent()
 844 {
 845     if (!m_bIconized)
 846     {
 847         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 848
 849         (void)::WinPostMsg( m_hFrame
 850                            ,WM_SIZE
 851                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 852                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 853                           );
 854     }
 855 } // end of wxTopLevelWindowOS2::SendSizeEvent
 856
 857 // ----------------------------------------------------------------------------
 858 // wxTopLevelWindowOS2 fullscreen
 859 // ----------------------------------------------------------------------------
 860
 861 bool wxTopLevelWindowOS2::ShowFullScreen( bool bShow,
 862                                           long lStyle )
 863 {
 864     if (bShow)
 865     {
 866         if (IsFullScreen())
 867             return false;
 868
 869         m_bFsIsShowing = true;
 870         m_lFsStyle = lStyle;
 871
 872         //
 873         // Zap the frame borders
 874         //
 875
 876         //
 877         // Save the 'normal' window lStyle
 878         //
 879         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 880                                                     ,QWL_STYLE
 881                                                    );
 882
 883         //
 884         // Save the old position, width & height, maximize state
 885         //
 886         m_vFsOldSize = GetRect();
 887         m_bFsIsMaximized = IsMaximized();
 888
 889         //
 890         // Decide which window lStyle flags to turn off
 891         //
 892         LONG lNewStyle = m_lFsOldWindowStyle;
 893         LONG lOffFlags = 0;
 894
 895         if (lStyle & wxFULLSCREEN_NOBORDER)
 896             lOffFlags |= FCF_BORDER;
 897         if (lStyle & wxFULLSCREEN_NOCAPTION)
 898             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 899
 900         lNewStyle &= (~lOffFlags);
 901
 902         //
 903         // Change our window style to be compatible with full-screen mode
 904         //
 905         ::WinSetWindowULong( (HWND)GetHWND()
 906                             ,QWL_STYLE
 907                             ,lNewStyle
 908                            );
 909
 910         //
 911         // Resize to the size of the desktop
 912         //
 913         int   nWidth;
 914         int   nHeight;
 915         RECTL vRect = wxGetWindowRect(HWND_DESKTOP);
 916
 917         nWidth = vRect.xRight - vRect.xLeft;
 918         nHeight = vRect.yTop - vRect.yBottom;
 919
 920         SetSize( nWidth, nHeight );
 921
 922         //
 923         // Now flush the window style cache and actually go full-screen
 924         //
 925         ::WinSetWindowPos( m_hFrame
 926                           ,HWND_TOP
 927                           ,0
 928                           ,0
 929                           ,nWidth
 930                           ,nHeight
 931                           ,SWP_SIZE | SWP_MOVE
 932                          );
 933
 934         wxSize full( nWidth, nHeight );
 935         wxSizeEvent vEvent( full, GetId() );
 936         GetEventHandler()->ProcessEvent(vEvent);
 937         return true;
 938     }
 939     else
 940     {
 941         if (!IsFullScreen())
 942             return false;
 943
 944         m_bFsIsShowing = false;
 945         Maximize(m_bFsIsMaximized);
 946         ::WinSetWindowULong( (HWND)GetHWND()
 947                             ,QWL_STYLE
 948                             ,m_lFsOldWindowStyle
 949                            );
 950         ::WinSetWindowPos( m_hFrame
 951                           ,HWND_TOP
 952                           ,m_vFsOldSize.x
 953                           ,m_vFsOldSize.y
 954                           ,m_vFsOldSize.width
 955                           ,m_vFsOldSize.height
 956                           ,SWP_SIZE | SWP_MOVE
 957                          );
 958         return true;
 959     }
 960 } // end of wxTopLevelWindowOS2::ShowFullScreen
 961
 962 // ----------------------------------------------------------------------------
 963 // wxTopLevelWindowOS2 misc
 964 // ----------------------------------------------------------------------------
 965
 966 void wxTopLevelWindowOS2::SetIcon(
 967   const wxIcon&                     rIcon
 968 )
 969 {
 970     SetIcons(wxIconBundle(rIcon));
 971 } // end of wxTopLevelWindowOS2::SetIcon
 972
 973 void wxTopLevelWindowOS2::SetIcons(
 974   const wxIconBundle&               rIcons
 975 )
 976 {
 977     //
 978     // This sets m_icon
 979     //
 980     wxTopLevelWindowBase::SetIcons(rIcons);
 981
 982     const wxIcon&                   vIcon = rIcons.GetIcon(wxSize(32, 32));
 983
 984     if (vIcon.Ok() && vIcon.GetWidth() == 32 && vIcon.GetHeight() == 32)
 985     {
 986         ::WinSendMsg( m_hFrame
 987                      ,WM_SETICON
 988                      ,(MPARAM)((HPOINTER)vIcon.GetHICON())
 989                      ,NULL
 990                     );
 991         ::WinSendMsg( m_hFrame
 992                      ,WM_UPDATEFRAME
 993                      ,(MPARAM)FCF_ICON
 994                      ,(MPARAM)0
 995                     );
 996     }
 997 } // end of wxTopLevelWindowOS2::SetIcon
 998
 999 bool wxTopLevelWindowOS2::EnableCloseButton( bool bEnable )
1000 {
1001     //
1002     // Get system (a.k.a. window) menu
1003     //
1004     HMENU hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
1005
1006     if (!hMenu)
1007     {
1008         wxLogLastError(_T("GetSystemMenu"));
1009         return false;
1010     }
1011
1012     //
1013     // Enabling/disabling the close item from it also automatically
1014     // disables/enables the close title bar button
1015     //
1016     if (bEnable)
1017         (void)::WinSendMsg( hMenu
1018                            ,MM_SETITEMATTR
1019                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1020                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
1021                           );
1022     else
1023         (void)::WinSendMsg( hMenu
1024                            ,MM_SETITEMATTR
1025                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
1026                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
1027                           );
1028
1029     //
1030     // Update appearance immediately
1031     //
1032     ::WinSendMsg( m_hFrame
1033                  ,WM_UPDATEFRAME
1034                  ,(MPARAM)FCF_MENU
1035                  ,(MPARAM)0
1036                 );
1037     return true;
1038 } // end of wxTopLevelWindowOS2::EnableCloseButton
1039
1040 // ============================================================================
1041 // wxTLWHiddenParentModule implementation
1042 // ============================================================================
1043
1044 HWND          wxTLWHiddenParentModule::m_shWnd = NULL;
1045 const wxChar* wxTLWHiddenParentModule::m_szClassName = NULL;
1046
1047 bool wxTLWHiddenParentModule::OnInit()
1048 {
1049     m_shWnd = NULL;
1050     m_szClassName = NULL;
1051     return true;
1052 } // end of wxTLWHiddenParentModule::OnInit
1053
1054 void wxTLWHiddenParentModule::OnExit()
1055 {
1056     if (m_shWnd)
1057     {
1058         if (!::WinDestroyWindow(m_shWnd))
1059         {
1060             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1061         }
1062         m_shWnd = NULL;
1063     }
1064
1065     m_szClassName = NULL;
1066 } // end of wxTLWHiddenParentModule::OnExit
1067
1068 /* static */
1069 HWND wxTLWHiddenParentModule::GetHWND()
1070 {
1071     if (!m_shWnd)
1072     {
1073         if (!m_szClassName)
1074         {
1075             static const wxChar*    zHIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1076
1077             if (!::WinRegisterClass( wxGetInstance()
1078                                     ,(PSZ)zHIDDEN_PARENT_CLASS
1079                                     ,NULL
1080                                     ,0
1081                                     ,sizeof(ULONG)
1082                                    ))
1083             {
1084                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1085             }
1086             else
1087             {
1088                 m_szClassName = zHIDDEN_PARENT_CLASS;
1089             }
1090         }
1091         m_shWnd = ::WinCreateWindow( HWND_DESKTOP,
1092                                      (PSZ)m_szClassName,
1093                                      "",
1094                                      0L,
1095                                      (LONG)0L,
1096                                      (LONG)0L,
1097                                      (LONG)0L,
1098                                      (LONG)0L,
1099                                      NULLHANDLE,
1100                                      HWND_TOP,
1101                                      0L,
1102                                      NULL,
1103                                      NULL );
1104         if (!m_shWnd)
1105         {
1106             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1107         }
1108     }
1109     return m_shWnd;
1110 } // end of wxTLWHiddenParentModule::GetHWND