src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38     #include "wx/containr.h"        // wxSetFocusToChild()
  39 #endif //WX_PRECOMP
  40
  41 #include "wx/module.h"
  42
  43 #include "wx/msw/private.h"
  44 #include "wx/msw/winundef.h"
  45
  46 // This can't be undefed in winundef.h or
  47 // there are further errors
  48 #if defined(__WXWINCE__) && defined(CreateDialog)
  49 #undef CreateDialog
  50 #endif
  51
  52 #include "wx/display.h"
  53
  54 #ifndef ICON_BIG
  55     #define ICON_BIG 1
  56 #endif
  57
  58 #ifndef ICON_SMALL
  59     #define ICON_SMALL 0
  60 #endif
  61
  62 // ----------------------------------------------------------------------------
  63 // stubs for missing functions under MicroWindows
  64 // ----------------------------------------------------------------------------
  65
  66 #ifdef __WXMICROWIN__
  67
  68 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  69 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  70
  71 #endif // __WXMICROWIN__
  72
  73 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  74 //     is not included by wxUniv build which does need wxDlgProc
  75 LONG APIENTRY _EXPORT
  76 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  77
  78 // ----------------------------------------------------------------------------
  79 // globals
  80 // ----------------------------------------------------------------------------
  81
  82 // list of all frames and modeless dialogs
  83 wxWindowList wxModelessWindows;
  84
  85 // the name of the default wxWindows class
  86 extern const wxChar *wxCanvasClassName;
  87
  88 // ----------------------------------------------------------------------------
  89 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  90 // module to ensure that the window is always deleted)
  91 // ----------------------------------------------------------------------------
  92
  93 class wxTLWHiddenParentModule : public wxModule
  94 {
  95 public:
  96     // module init/finalize
  97     virtual bool OnInit();
  98     virtual void OnExit();
  99
 100     // get the hidden window (creates on demand)
 101     static HWND GetHWND();
 102
 103 private:
 104     // the HWND of the hidden parent
 105     static HWND ms_hwnd;
 106
 107     // the class used to create it
 108     static const wxChar *ms_className;
 109
 110     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 111 };
 112
 113 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 114
 115 // ============================================================================
 116 // wxTopLevelWindowMSW implementation
 117 // ============================================================================
 118
 119 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 120     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 121 END_EVENT_TABLE()
 122
 123 // ----------------------------------------------------------------------------
 124 // wxTopLevelWindowMSW creation
 125 // ----------------------------------------------------------------------------
 126
 127 void wxTopLevelWindowMSW::Init()
 128 {
 129     m_iconized =
 130     m_maximizeOnShow = FALSE;
 131
 132     // unlike (almost?) all other windows, frames are created hidden
 133     m_isShown = FALSE;
 134
 135     // Data to save/restore when calling ShowFullScreen
 136     m_fsStyle = 0;
 137     m_fsOldWindowStyle = 0;
 138     m_fsIsMaximized = FALSE;
 139     m_fsIsShowing = FALSE;
 140
 141     m_winLastFocused = (wxWindow *)NULL;
 142 }
 143
 144 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 145 {
 146     // let the base class deal with the common styles but fix the ones which
 147     // don't make sense for us (we also deal with the borders ourselves)
 148     WXDWORD msflags = wxWindow::MSWGetStyle
 149                       (
 150                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 151                       ) & ~WS_CHILD & ~WS_VISIBLE;
 152
 153     // first select the kind of window being created
 154     //
 155     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 156     // creates a window with both caption and border, hence we also test it
 157     // below in some other cases
 158     if ( style & wxFRAME_TOOL_WINDOW )
 159         msflags |= WS_POPUP;
 160     else
 161     {
 162 #ifdef __WXWINCE__
 163         if (msflags & WS_BORDER)
 164 #endif
 165             msflags |= WS_OVERLAPPED;
 166     }
 167
 168     // border and caption styles
 169     if ( style & wxRESIZE_BORDER )
 170     {
 171 #ifndef __WXWINCE__
 172         msflags |= WS_THICKFRAME;
 173 #endif
 174     }
 175     else if ( !(style & wxBORDER_NONE) )
 176         msflags |= WS_BORDER;
 177 #ifndef __WXWINCE__
 178     else
 179         msflags |= WS_POPUP;
 180 #endif
 181
 182     if ( style & wxCAPTION )
 183         msflags |= WS_CAPTION;
 184 #ifndef __WXWINCE__
 185     else
 186         msflags |= WS_POPUP;
 187 #endif
 188
 189     // next translate the individual flags
 190     if ( style & wxMINIMIZE_BOX )
 191         msflags |= WS_MINIMIZEBOX;
 192     if ( style & wxMAXIMIZE_BOX )
 193         msflags |= WS_MAXIMIZEBOX;
 194     if ( style & wxSYSTEM_MENU )
 195         msflags |= WS_SYSMENU;
 196 #ifndef __WXWINCE__
 197     if ( style & wxMINIMIZE )
 198         msflags |= WS_MINIMIZE;
 199     if ( style & wxMAXIMIZE )
 200         msflags |= WS_MAXIMIZE;
 201 #endif
 202
 203     // Keep this here because it saves recoding this function in wxTinyFrame
 204 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 205     if ( style & wxTINY_CAPTION_VERT )
 206         msflags |= IBS_VERTCAPTION;
 207     if ( style & wxTINY_CAPTION_HORIZ )
 208         msflags |= IBS_HORZCAPTION;
 209 #else
 210     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 211         msflags |= WS_CAPTION;
 212 #endif
 213
 214     if ( exflags )
 215     {
 216 #if !defined(__WIN16__)
 217         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 218         {
 219             if ( style & wxFRAME_TOOL_WINDOW )
 220             {
 221                 // create the palette-like window
 222                 *exflags |= WS_EX_TOOLWINDOW;
 223             }
 224
 225             // We have to solve 2 different problems here:
 226             //
 227             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 228             //    taskbar even if they don't have a parent
 229             //
 230             // 2. frames without this style should appear in the taskbar even
 231             //    if they're owned (Windows only puts non owned windows into
 232             //    the taskbar normally)
 233             //
 234             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 235             // first one is dealt with in our MSWGetParent() method
 236             // implementation
 237 #ifndef __WXWINCE__
 238             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 239             {
 240                 // need to force the frame to appear in the taskbar
 241                 *exflags |= WS_EX_APPWINDOW;
 242             }
 243 #endif
 244             //else: nothing to do [here]
 245         }
 246 #endif // !Win16
 247
 248         if ( style & wxSTAY_ON_TOP )
 249             *exflags |= WS_EX_TOPMOST;
 250
 251 #ifdef __WIN32__
 252         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 253             *exflags |= WS_EX_CONTEXTHELP;
 254 #endif // __WIN32__
 255     }
 256
 257     return msflags;
 258 }
 259
 260 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 261 {
 262     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 263     // parent HWND or it would be always on top of its parent which is not what
 264     // we usually want (in fact, we only want it for frames with the
 265     // wxFRAME_FLOAT_ON_PARENT flag)
 266     HWND hwndParent = NULL;
 267     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 268     {
 269         const wxWindow *parent = GetParent();
 270
 271         if ( !parent )
 272         {
 273             // this flag doesn't make sense then and will be ignored
 274             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 275         }
 276         else
 277         {
 278             hwndParent = GetHwndOf(parent);
 279         }
 280     }
 281     //else: don't float on parent, must not be owned
 282
 283     // now deal with the 2nd taskbar-related problem (see comments above in
 284     // MSWGetStyle())
 285     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 286     {
 287         // use hidden parent
 288         hwndParent = wxTLWHiddenParentModule::GetHWND();
 289     }
 290
 291     return (WXHWND)hwndParent;
 292 }
 293
 294 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 295                                        const wxString& title,
 296                                        const wxPoint& pos,
 297                                        const wxSize& size)
 298 {
 299 #ifdef __WXMICROWIN__
 300     // no dialogs support under MicroWin yet
 301     return CreateFrame(title, pos, size);
 302 #else // !__WXMICROWIN__
 303     wxWindow *parent = GetParent();
 304
 305     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 306     // app window as parent - this avoids creating modal dialogs without
 307     // parent
 308     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 309     {
 310         parent = wxTheApp->GetTopWindow();
 311
 312         if ( parent )
 313         {
 314             // don't use transient windows as parents, this is dangerous as it
 315             // can lead to a crash if the parent is destroyed before the child
 316             //
 317             // also don't use the window which is currently hidden as then the
 318             // dialog would be hidden as well
 319             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 320                     !parent->IsShown() )
 321             {
 322                 parent = NULL;
 323             }
 324         }
 325     }
 326
 327     m_hWnd = (WXHWND)::CreateDialogIndirect
 328                        (
 329                         wxGetInstance(),
 330                         (DLGTEMPLATE*)dlgTemplate,
 331                         parent ? GetHwndOf(parent) : NULL,
 332                         (DLGPROC)wxDlgProc
 333                        );
 334
 335     if ( !m_hWnd )
 336     {
 337         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 338
 339         wxLogSysError(wxT("Can't create dialog using memory template"));
 340
 341         return FALSE;
 342     }
 343
 344     WXDWORD exflags;
 345     (void)MSWGetCreateWindowFlags(&exflags);
 346
 347     if ( exflags )
 348     {
 349         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 350         ::SetWindowPos(GetHwnd(),
 351                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 352                        0, 0, 0, 0,
 353                        SWP_NOSIZE |
 354                        SWP_NOMOVE |
 355                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 356                        SWP_NOACTIVATE);
 357     }
 358
 359 #if defined(__WIN95__)
 360     // For some reason, the system menu is activated when we use the
 361     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 362     if ( exflags & WS_EX_CONTEXTHELP )
 363     {
 364         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 365         if ( winTop )
 366         {
 367             wxIcon icon = winTop->GetIcon();
 368             if ( icon.Ok() )
 369             {
 370                 ::SendMessage(GetHwnd(), WM_SETICON,
 371                               (WPARAM)TRUE,
 372                               (LPARAM)GetHiconOf(icon));
 373             }
 374         }
 375     }
 376 #endif // __WIN95__
 377
 378     // move the dialog to its initial position without forcing repainting
 379     int x, y, w, h;
 380     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 381     {
 382         x =
 383         w = (int)CW_USEDEFAULT;
 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     if ( w == (int)CW_USEDEFAULT )
 391     {
 392         // the exact number doesn't matter, the dialog will be resized
 393         // again soon anyhow but it should be big enough to allow
 394         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 395         // at least greater than the title bar height
 396         w =
 397         h = 100;
 398     }
 399
 400     if ( x == (int)CW_USEDEFAULT )
 401     {
 402         // centre it on the screen - what else can we do?
 403         wxSize sizeDpy = wxGetDisplaySize();
 404
 405         x = (sizeDpy.x - w) / 2;
 406         y = (sizeDpy.y - h) / 2;
 407     }
 408
 409     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 410     {
 411         wxLogLastError(wxT("MoveWindow"));
 412     }
 413
 414     if ( !title.empty() )
 415     {
 416         ::SetWindowText(GetHwnd(), title);
 417     }
 418
 419     SubclassWin(m_hWnd);
 420
 421     return TRUE;
 422 #endif // __WXMICROWIN__/!__WXMICROWIN__
 423 }
 424
 425 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 426                                       const wxPoint& pos,
 427                                       const wxSize& size)
 428 {
 429     WXDWORD exflags;
 430     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 431
 432     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 433 }
 434
 435 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 436                                  wxWindowID id,
 437                                  const wxString& title,
 438                                  const wxPoint& pos,
 439                                  const wxSize& size,
 440                                  long style,
 441                                  const wxString& name)
 442 {
 443     bool ret = false;
 444
 445     // init our fields
 446     Init();
 447
 448     m_windowStyle = style;
 449
 450     SetName(name);
 451
 452     m_windowId = id == -1 ? NewControlId() : id;
 453
 454     wxTopLevelWindows.Append(this);
 455
 456     if ( parent )
 457         parent->AddChild(this);
 458
 459     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 460     {
 461         // we have different dialog templates to allows creation of dialogs
 462         // with & without captions under MSWindows, resizeable or not (but a
 463         // resizeable dialog always has caption - otherwise it would look too
 464         // strange)
 465
 466         // we need 3 additional WORDs for dialog menu, class and title (as we
 467         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 468         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 469         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 470         memset(dlgTemplate, 0, dlgsize);
 471
 472         // these values are arbitrary, they won't be used normally anyhow
 473         dlgTemplate->x  = 34;
 474         dlgTemplate->y  = 22;
 475         dlgTemplate->cx = 144;
 476         dlgTemplate->cy = 75;
 477
 478         // reuse the code in MSWGetStyle() but correct the results slightly for
 479         // the dialog
 480         dlgTemplate->style = MSWGetStyle(style, NULL);
 481
 482         // all dialogs are popups
 483         dlgTemplate->style |= WS_POPUP;
 484
 485         // force 3D-look if necessary, it looks impossibly ugly otherwise
 486         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 487             dlgTemplate->style |= DS_MODALFRAME;
 488
 489         ret = CreateDialog(dlgTemplate, title, pos, size);
 490         free(dlgTemplate);
 491     }
 492     else // !dialog
 493     {
 494         ret = CreateFrame(title, pos, size);
 495     }
 496
 497     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 498     {
 499         EnableCloseButton(false);
 500     }
 501
 502     return ret;
 503 }
 504
 505 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 506 {
 507     if ( wxModelessWindows.Find(this) )
 508         wxModelessWindows.DeleteObject(this);
 509
 510     // after destroying an owned window, Windows activates the next top level
 511     // window in Z order but it may be different from our owner (to reproduce
 512     // this simply Alt-TAB to another application and back before closing the
 513     // owned frame) whereas we always want to yield activation to our parent
 514     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 515     {
 516         wxWindow *parent = GetParent();
 517         if ( parent )
 518         {
 519             ::BringWindowToTop(GetHwndOf(parent));
 520         }
 521     }
 522 }
 523
 524 // ----------------------------------------------------------------------------
 525 // wxTopLevelWindowMSW showing
 526 // ----------------------------------------------------------------------------
 527
 528 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 529 {
 530     ::ShowWindow(GetHwnd(), nShowCmd);
 531
 532     m_iconized = nShowCmd == SW_MINIMIZE;
 533 }
 534
 535 bool wxTopLevelWindowMSW::Show(bool show)
 536 {
 537     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 538     if ( !wxWindowBase::Show(show) )
 539         return FALSE;
 540
 541     int nShowCmd;
 542     if ( show )
 543     {
 544         if ( m_maximizeOnShow )
 545         {
 546             // show and maximize
 547             nShowCmd = SW_MAXIMIZE;
 548
 549             m_maximizeOnShow = FALSE;
 550         }
 551         else // just show
 552         {
 553            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 554                nShowCmd = SW_SHOWNA;
 555            else
 556                nShowCmd = SW_SHOW;
 557         }
 558     }
 559     else // hide
 560     {
 561         nShowCmd = SW_HIDE;
 562     }
 563
 564     DoShowWindow(nShowCmd);
 565
 566     if ( show )
 567     {
 568         ::BringWindowToTop(GetHwnd());
 569
 570         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 571         event.SetEventObject( this );
 572         GetEventHandler()->ProcessEvent(event);
 573     }
 574     else // hide
 575     {
 576         // Try to highlight the correct window (the parent)
 577         if ( GetParent() )
 578         {
 579             HWND hWndParent = GetHwndOf(GetParent());
 580             if (hWndParent)
 581                 ::BringWindowToTop(hWndParent);
 582         }
 583     }
 584
 585     return TRUE;
 586 }
 587
 588 // ----------------------------------------------------------------------------
 589 // wxTopLevelWindowMSW maximize/minimize
 590 // ----------------------------------------------------------------------------
 591
 592 void wxTopLevelWindowMSW::Maximize(bool maximize)
 593 {
 594     if ( IsShown() )
 595     {
 596         // just maximize it directly
 597         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 598     }
 599     else // hidden
 600     {
 601         // we can't maximize the hidden frame because it shows it as well, so
 602         // just remember that we should do it later in this case
 603         m_maximizeOnShow = maximize;
 604     }
 605 }
 606
 607 bool wxTopLevelWindowMSW::IsMaximized() const
 608 {
 609 #ifdef __WXWINCE__
 610     return FALSE;
 611 #else
 612     return ::IsZoomed(GetHwnd()) != 0;
 613 #endif
 614 }
 615
 616 void wxTopLevelWindowMSW::Iconize(bool iconize)
 617 {
 618     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 619 }
 620
 621 bool wxTopLevelWindowMSW::IsIconized() const
 622 {
 623 #ifdef __WXWINCE__
 624     return FALSE;
 625 #else
 626     // also update the current state
 627     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 628
 629     return m_iconized;
 630 #endif
 631 }
 632
 633 void wxTopLevelWindowMSW::Restore()
 634 {
 635     DoShowWindow(SW_RESTORE);
 636 }
 637
 638 // ----------------------------------------------------------------------------
 639 // wxTopLevelWindowMSW fullscreen
 640 // ----------------------------------------------------------------------------
 641
 642 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 643 {
 644     if ( show == IsFullScreen() )
 645     {
 646         // nothing to do
 647         return TRUE;
 648     }
 649
 650     m_fsIsShowing = show;
 651
 652     if ( show )
 653     {
 654         m_fsStyle = style;
 655
 656         // zap the frame borders
 657
 658         // save the 'normal' window style
 659         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 660
 661         // save the old position, width & height, maximize state
 662         m_fsOldSize = GetRect();
 663         m_fsIsMaximized = IsMaximized();
 664
 665         // decide which window style flags to turn off
 666         LONG newStyle = m_fsOldWindowStyle;
 667         LONG offFlags = 0;
 668
 669         if (style & wxFULLSCREEN_NOBORDER)
 670         {
 671             offFlags |= WS_BORDER;
 672 #ifndef __WXWINCE__
 673             offFlags |= WS_THICKFRAME;
 674 #endif
 675         }
 676         if (style & wxFULLSCREEN_NOCAPTION)
 677             offFlags |= WS_CAPTION | WS_SYSMENU;
 678
 679         newStyle &= ~offFlags;
 680
 681         // change our window style to be compatible with full-screen mode
 682         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 683
 684         wxRect rect;
 685 #if wxUSE_DISPLAY
 686         // resize to the size of the display containing us
 687         int dpy = wxDisplay::GetFromWindow(this);
 688         if ( dpy != wxNOT_FOUND )
 689         {
 690             rect = wxDisplay(dpy).GetGeometry();
 691         }
 692         else // fall back to the main desktop
 693 #else // wxUSE_DISPLAY
 694         {
 695             // FIXME: implement for WinCE
 696 #ifndef __WXWINCE__
 697             // resize to the size of the desktop
 698             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 699 #endif
 700         }
 701 #endif // wxUSE_DISPLAY
 702
 703         SetSize(rect);
 704
 705         // now flush the window style cache and actually go full-screen
 706         long flags = SWP_FRAMECHANGED;
 707
 708         // showing the frame full screen should also show it if it's still
 709         // hidden
 710         if ( !IsShown() )
 711         {
 712             // don't call wxWindow version to avoid flicker from calling
 713             // ::ShowWindow() -- we're going to show the window at the correct
 714             // location directly below -- but do call the wxWindowBase version
 715             // to sync the internal m_isShown flag
 716             wxWindowBase::Show();
 717
 718             flags |= SWP_SHOWWINDOW;
 719         }
 720
 721         SetWindowPos(GetHwnd(), HWND_TOP,
 722                      rect.x, rect.y, rect.width, rect.height,
 723                      flags);
 724
 725         // finally send an event allowing the window to relayout itself &c
 726         wxSizeEvent event(rect.GetSize(), GetId());
 727         GetEventHandler()->ProcessEvent(event);
 728     }
 729     else // stop showing full screen
 730     {
 731         Maximize(m_fsIsMaximized);
 732         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 733         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 734             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 735     }
 736
 737     return TRUE;
 738 }
 739
 740 // ----------------------------------------------------------------------------
 741 // wxTopLevelWindowMSW misc
 742 // ----------------------------------------------------------------------------
 743
 744 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 745 {
 746     SetIcons( wxIconBundle( icon ) );
 747 }
 748
 749 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 750 {
 751     wxTopLevelWindowBase::SetIcons(icons);
 752
 753 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 754     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 755     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 756     {
 757         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 758                        (LPARAM)GetHiconOf(sml) );
 759     }
 760
 761     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 762     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 763     {
 764         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 765                        (LPARAM)GetHiconOf(big) );
 766     }
 767 #endif // __WIN95__
 768 }
 769
 770 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 771 {
 772 #if !defined(__WXMICROWIN__)
 773     // get system (a.k.a. window) menu
 774     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 775     if ( !hmenu )
 776     {
 777         // no system menu at all -- ok if we want to remove the close button
 778         // anyhow, but bad if we want to show it
 779         return !enable;
 780     }
 781
 782     // enabling/disabling the close item from it also automatically
 783     // disables/enables the close title bar button
 784     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 785                           MF_BYCOMMAND |
 786                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 787     {
 788         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 789
 790         return FALSE;
 791     }
 792
 793     // update appearance immediately
 794     if ( !::DrawMenuBar(GetHwnd()) )
 795     {
 796         wxLogLastError(_T("DrawMenuBar"));
 797     }
 798 #endif // !__WXMICROWIN__
 799
 800     return TRUE;
 801 }
 802
 803 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 804 {
 805 #ifdef __WXWINCE__
 806     return FALSE;
 807 #else
 808     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 809                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 810
 811     // The empty region signifies that the shape should be removed from the
 812     // window.
 813     if ( region.IsEmpty() )
 814     {
 815         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 816         {
 817             wxLogLastError(_T("SetWindowRgn"));
 818             return FALSE;
 819         }
 820         return TRUE;
 821     }
 822
 823     // Windows takes ownership of the region, so
 824     // we'll have to make a copy of the region to give to it.
 825     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 826     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 827     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 828     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 829     delete[] (char*) rgnData;
 830
 831     // SetWindowRgn expects the region to be in coordinants
 832     // relative to the window, not the client area.  Figure
 833     // out the offset, if any.
 834     RECT rect;
 835     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 836     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 837     ::GetClientRect(GetHwnd(), &rect);
 838     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 839     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 840
 841     // Now call the shape API with the new region.
 842     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 843     {
 844         wxLogLastError(_T("SetWindowRgn"));
 845         return FALSE;
 846     }
 847     return TRUE;
 848 #endif
 849 }
 850
 851 // ----------------------------------------------------------------------------
 852 // wxTopLevelWindow event handling
 853 // ----------------------------------------------------------------------------
 854
 855 // Default activation behaviour - set the focus for the first child
 856 // subwindow found.
 857 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 858 {
 859     if ( event.GetActive() )
 860     {
 861         // restore focus to the child which was last focused
 862         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 863
 864         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 865                                             : NULL;
 866         if ( !parent )
 867         {
 868             parent = this;
 869         }
 870
 871         wxSetFocusToChild(parent, &m_winLastFocused);
 872     }
 873     else // deactivating
 874     {
 875         // remember the last focused child if it is our child
 876         m_winLastFocused = FindFocus();
 877
 878         if ( m_winLastFocused )
 879         {
 880             // let it know that it doesn't have focus any more
 881             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 882         }
 883
 884         // so we NULL it out if it's a child from some other frame
 885         wxWindow *win = m_winLastFocused;
 886         while ( win )
 887         {
 888             if ( win->IsTopLevel() )
 889             {
 890                 if ( win != this )
 891                 {
 892                     m_winLastFocused = NULL;
 893                 }
 894
 895                 break;
 896             }
 897
 898             win = win->GetParent();
 899         }
 900
 901         wxLogTrace(_T("focus"),
 902                    _T("wxTLW %08x deactivated, last focused: %08x."),
 903                    (int) m_hWnd,
 904                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 905                                            : NULL));
 906
 907         event.Skip();
 908     }
 909 }
 910
 911 // the DialogProc for all wxWindows dialogs
 912 LONG APIENTRY _EXPORT
 913 wxDlgProc(HWND WXUNUSED(hDlg),
 914           UINT message,
 915           WPARAM WXUNUSED(wParam),
 916           LPARAM WXUNUSED(lParam))
 917 {
 918     switch ( message )
 919     {
 920         case WM_INITDIALOG:
 921             // for this message, returning TRUE tells system to set focus to
 922             // the first control in the dialog box, but as we set the focus
 923             // ourselves, we return FALSE from here as well, so fall through
 924
 925         default:
 926             // for all the other ones, FALSE means that we didn't process the
 927             // message
 928             return FALSE;
 929     }
 930 }
 931
 932 // ============================================================================
 933 // wxTLWHiddenParentModule implementation
 934 // ============================================================================
 935
 936 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 937
 938 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 939
 940 bool wxTLWHiddenParentModule::OnInit()
 941 {
 942     ms_hwnd = NULL;
 943     ms_className = NULL;
 944
 945     return TRUE;
 946 }
 947
 948 void wxTLWHiddenParentModule::OnExit()
 949 {
 950     if ( ms_hwnd )
 951     {
 952         if ( !::DestroyWindow(ms_hwnd) )
 953         {
 954             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 955         }
 956
 957         ms_hwnd = NULL;
 958     }
 959
 960     if ( ms_className )
 961     {
 962         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 963         {
 964             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 965         }
 966
 967         ms_className = NULL;
 968     }
 969 }
 970
 971 /* static */
 972 HWND wxTLWHiddenParentModule::GetHWND()
 973 {
 974     if ( !ms_hwnd )
 975     {
 976         if ( !ms_className )
 977         {
 978             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 979
 980             WNDCLASS wndclass;
 981             wxZeroMemory(wndclass);
 982
 983             wndclass.lpfnWndProc   = DefWindowProc;
 984             wndclass.hInstance     = wxGetInstance();
 985             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
 986
 987             if ( !::RegisterClass(&wndclass) )
 988             {
 989                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
 990             }
 991             else
 992             {
 993                 ms_className = HIDDEN_PARENT_CLASS;
 994             }
 995         }
 996
 997         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
 998                                  (HMENU)NULL, wxGetInstance(), NULL);
 999         if ( !ms_hwnd )
1000         {
1001             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1002         }
1003     }
1004
1005     return ms_hwnd;
1006 }
1007
1008