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                 // tool windows shouldn't appear on the taskbar (as documented)
 225                 style |= wxFRAME_NO_TASKBAR;
 226             }
 227
 228             // We have to solve 2 different problems here:
 229             //
 230             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 231             //    taskbar even if they don't have a parent
 232             //
 233             // 2. frames without this style should appear in the taskbar even
 234             //    if they're owned (Windows only puts non owned windows into
 235             //    the taskbar normally)
 236             //
 237             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 238             // first one is dealt with in our MSWGetParent() method
 239             // implementation
 240 #ifndef __WXWINCE__
 241             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 242             {
 243                 // need to force the frame to appear in the taskbar
 244                 *exflags |= WS_EX_APPWINDOW;
 245             }
 246 #endif
 247             //else: nothing to do [here]
 248         }
 249 #endif // !Win16
 250
 251         if ( style & wxSTAY_ON_TOP )
 252             *exflags |= WS_EX_TOPMOST;
 253
 254 #ifdef __WIN32__
 255         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 256             *exflags |= WS_EX_CONTEXTHELP;
 257 #endif // __WIN32__
 258     }
 259
 260     return msflags;
 261 }
 262
 263 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 264 {
 265     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 266     // parent HWND or it would be always on top of its parent which is not what
 267     // we usually want (in fact, we only want it for frames with the
 268     // wxFRAME_FLOAT_ON_PARENT flag)
 269     HWND hwndParent = NULL;
 270     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 271     {
 272         const wxWindow *parent = GetParent();
 273
 274         if ( !parent )
 275         {
 276             // this flag doesn't make sense then and will be ignored
 277             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 278         }
 279         else
 280         {
 281             hwndParent = GetHwndOf(parent);
 282         }
 283     }
 284     //else: don't float on parent, must not be owned
 285
 286     // now deal with the 2nd taskbar-related problem (see comments above in
 287     // MSWGetStyle())
 288     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 289     {
 290         // use hidden parent
 291         hwndParent = wxTLWHiddenParentModule::GetHWND();
 292     }
 293
 294     return (WXHWND)hwndParent;
 295 }
 296
 297 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 298                                        const wxString& title,
 299                                        const wxPoint& pos,
 300                                        const wxSize& size)
 301 {
 302 #ifdef __WXMICROWIN__
 303     // no dialogs support under MicroWin yet
 304     return CreateFrame(title, pos, size);
 305 #else // !__WXMICROWIN__
 306     wxWindow *parent = GetParent();
 307
 308     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 309     // app window as parent - this avoids creating modal dialogs without
 310     // parent
 311     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 312     {
 313         parent = wxTheApp->GetTopWindow();
 314
 315         if ( parent )
 316         {
 317             // don't use transient windows as parents, this is dangerous as it
 318             // can lead to a crash if the parent is destroyed before the child
 319             //
 320             // also don't use the window which is currently hidden as then the
 321             // dialog would be hidden as well
 322             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 323                     !parent->IsShown() )
 324             {
 325                 parent = NULL;
 326             }
 327         }
 328     }
 329
 330     m_hWnd = (WXHWND)::CreateDialogIndirect
 331                        (
 332                         wxGetInstance(),
 333                         (DLGTEMPLATE*)dlgTemplate,
 334                         parent ? GetHwndOf(parent) : NULL,
 335                         (DLGPROC)wxDlgProc
 336                        );
 337
 338     if ( !m_hWnd )
 339     {
 340         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 341
 342         wxLogSysError(wxT("Can't create dialog using memory template"));
 343
 344         return FALSE;
 345     }
 346
 347     WXDWORD exflags;
 348     (void)MSWGetCreateWindowFlags(&exflags);
 349
 350     if ( exflags )
 351     {
 352         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 353         ::SetWindowPos(GetHwnd(),
 354                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 355                        0, 0, 0, 0,
 356                        SWP_NOSIZE |
 357                        SWP_NOMOVE |
 358                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 359                        SWP_NOACTIVATE);
 360     }
 361
 362 #if defined(__WIN95__)
 363     // For some reason, the system menu is activated when we use the
 364     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 365     if ( exflags & WS_EX_CONTEXTHELP )
 366     {
 367         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 368         if ( winTop )
 369         {
 370             wxIcon icon = winTop->GetIcon();
 371             if ( icon.Ok() )
 372             {
 373                 ::SendMessage(GetHwnd(), WM_SETICON,
 374                               (WPARAM)TRUE,
 375                               (LPARAM)GetHiconOf(icon));
 376             }
 377         }
 378     }
 379 #endif // __WIN95__
 380
 381     // move the dialog to its initial position without forcing repainting
 382     int x, y, w, h;
 383     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 384     {
 385         x =
 386         w = (int)CW_USEDEFAULT;
 387     }
 388
 389     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 390     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 391     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 392     // sizer calculation in wxSizer::Fit()
 393     if ( w == (int)CW_USEDEFAULT )
 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         w =
 400         h = 100;
 401     }
 402
 403     if ( x == (int)CW_USEDEFAULT )
 404     {
 405         // centre it on the screen - what else can we do?
 406         wxSize sizeDpy = wxGetDisplaySize();
 407
 408         x = (sizeDpy.x - w) / 2;
 409         y = (sizeDpy.y - h) / 2;
 410     }
 411
 412     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 413     {
 414         wxLogLastError(wxT("MoveWindow"));
 415     }
 416
 417     if ( !title.empty() )
 418     {
 419         ::SetWindowText(GetHwnd(), title);
 420     }
 421
 422     SubclassWin(m_hWnd);
 423
 424     return TRUE;
 425 #endif // __WXMICROWIN__/!__WXMICROWIN__
 426 }
 427
 428 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 429                                       const wxPoint& pos,
 430                                       const wxSize& size)
 431 {
 432     WXDWORD exflags;
 433     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 434
 435     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 436 }
 437
 438 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 439                                  wxWindowID id,
 440                                  const wxString& title,
 441                                  const wxPoint& pos,
 442                                  const wxSize& size,
 443                                  long style,
 444                                  const wxString& name)
 445 {
 446     bool ret = false;
 447
 448     // init our fields
 449     Init();
 450
 451     m_windowStyle = style;
 452
 453     SetName(name);
 454
 455     m_windowId = id == -1 ? NewControlId() : id;
 456
 457     wxTopLevelWindows.Append(this);
 458
 459     if ( parent )
 460         parent->AddChild(this);
 461
 462     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 463     {
 464         // we have different dialog templates to allows creation of dialogs
 465         // with & without captions under MSWindows, resizeable or not (but a
 466         // resizeable dialog always has caption - otherwise it would look too
 467         // strange)
 468
 469         // we need 3 additional WORDs for dialog menu, class and title (as we
 470         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 471         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 472         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 473         memset(dlgTemplate, 0, dlgsize);
 474
 475         // these values are arbitrary, they won't be used normally anyhow
 476         dlgTemplate->x  = 34;
 477         dlgTemplate->y  = 22;
 478         dlgTemplate->cx = 144;
 479         dlgTemplate->cy = 75;
 480
 481         // reuse the code in MSWGetStyle() but correct the results slightly for
 482         // the dialog
 483         dlgTemplate->style = MSWGetStyle(style, NULL);
 484
 485         // all dialogs are popups
 486         dlgTemplate->style |= WS_POPUP;
 487
 488         // force 3D-look if necessary, it looks impossibly ugly otherwise
 489         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 490             dlgTemplate->style |= DS_MODALFRAME;
 491
 492         ret = CreateDialog(dlgTemplate, title, pos, size);
 493         free(dlgTemplate);
 494     }
 495     else // !dialog
 496     {
 497         ret = CreateFrame(title, pos, size);
 498     }
 499
 500     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 501     {
 502         EnableCloseButton(false);
 503     }
 504
 505     return ret;
 506 }
 507
 508 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 509 {
 510     if ( wxModelessWindows.Find(this) )
 511         wxModelessWindows.DeleteObject(this);
 512
 513     // after destroying an owned window, Windows activates the next top level
 514     // window in Z order but it may be different from our owner (to reproduce
 515     // this simply Alt-TAB to another application and back before closing the
 516     // owned frame) whereas we always want to yield activation to our parent
 517     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 518     {
 519         wxWindow *parent = GetParent();
 520         if ( parent )
 521         {
 522             ::BringWindowToTop(GetHwndOf(parent));
 523         }
 524     }
 525 }
 526
 527 // ----------------------------------------------------------------------------
 528 // wxTopLevelWindowMSW showing
 529 // ----------------------------------------------------------------------------
 530
 531 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 532 {
 533     ::ShowWindow(GetHwnd(), nShowCmd);
 534
 535     m_iconized = nShowCmd == SW_MINIMIZE;
 536 }
 537
 538 bool wxTopLevelWindowMSW::Show(bool show)
 539 {
 540     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 541     if ( !wxWindowBase::Show(show) )
 542         return FALSE;
 543
 544     int nShowCmd;
 545     if ( show )
 546     {
 547         if ( m_maximizeOnShow )
 548         {
 549             // show and maximize
 550             nShowCmd = SW_MAXIMIZE;
 551
 552             m_maximizeOnShow = FALSE;
 553         }
 554         else // just show
 555         {
 556            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 557                nShowCmd = SW_SHOWNA;
 558            else
 559                nShowCmd = SW_SHOW;
 560         }
 561     }
 562     else // hide
 563     {
 564         nShowCmd = SW_HIDE;
 565     }
 566
 567     DoShowWindow(nShowCmd);
 568
 569     if ( show )
 570     {
 571         ::BringWindowToTop(GetHwnd());
 572
 573         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 574         event.SetEventObject( this );
 575         GetEventHandler()->ProcessEvent(event);
 576     }
 577     else // hide
 578     {
 579         // Try to highlight the correct window (the parent)
 580         if ( GetParent() )
 581         {
 582             HWND hWndParent = GetHwndOf(GetParent());
 583             if (hWndParent)
 584                 ::BringWindowToTop(hWndParent);
 585         }
 586     }
 587
 588     return TRUE;
 589 }
 590
 591 // ----------------------------------------------------------------------------
 592 // wxTopLevelWindowMSW maximize/minimize
 593 // ----------------------------------------------------------------------------
 594
 595 void wxTopLevelWindowMSW::Maximize(bool maximize)
 596 {
 597     if ( IsShown() )
 598     {
 599         // just maximize it directly
 600         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 601     }
 602     else // hidden
 603     {
 604         // we can't maximize the hidden frame because it shows it as well, so
 605         // just remember that we should do it later in this case
 606         m_maximizeOnShow = maximize;
 607     }
 608 }
 609
 610 bool wxTopLevelWindowMSW::IsMaximized() const
 611 {
 612 #ifdef __WXWINCE__
 613     return FALSE;
 614 #else
 615     return ::IsZoomed(GetHwnd()) != 0;
 616 #endif
 617 }
 618
 619 void wxTopLevelWindowMSW::Iconize(bool iconize)
 620 {
 621     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 622 }
 623
 624 bool wxTopLevelWindowMSW::IsIconized() const
 625 {
 626 #ifdef __WXWINCE__
 627     return FALSE;
 628 #else
 629     // also update the current state
 630     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 631
 632     return m_iconized;
 633 #endif
 634 }
 635
 636 void wxTopLevelWindowMSW::Restore()
 637 {
 638     DoShowWindow(SW_RESTORE);
 639 }
 640
 641 // ----------------------------------------------------------------------------
 642 // wxTopLevelWindowMSW fullscreen
 643 // ----------------------------------------------------------------------------
 644
 645 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 646 {
 647     if ( show == IsFullScreen() )
 648     {
 649         // nothing to do
 650         return TRUE;
 651     }
 652
 653     m_fsIsShowing = show;
 654
 655     if ( show )
 656     {
 657         m_fsStyle = style;
 658
 659         // zap the frame borders
 660
 661         // save the 'normal' window style
 662         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 663
 664         // save the old position, width & height, maximize state
 665         m_fsOldSize = GetRect();
 666         m_fsIsMaximized = IsMaximized();
 667
 668         // decide which window style flags to turn off
 669         LONG newStyle = m_fsOldWindowStyle;
 670         LONG offFlags = 0;
 671
 672         if (style & wxFULLSCREEN_NOBORDER)
 673         {
 674             offFlags |= WS_BORDER;
 675 #ifndef __WXWINCE__
 676             offFlags |= WS_THICKFRAME;
 677 #endif
 678         }
 679         if (style & wxFULLSCREEN_NOCAPTION)
 680             offFlags |= WS_CAPTION | WS_SYSMENU;
 681
 682         newStyle &= ~offFlags;
 683
 684         // change our window style to be compatible with full-screen mode
 685         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 686
 687         wxRect rect;
 688 #if wxUSE_DISPLAY
 689         // resize to the size of the display containing us
 690         int dpy = wxDisplay::GetFromWindow(this);
 691         if ( dpy != wxNOT_FOUND )
 692         {
 693             rect = wxDisplay(dpy).GetGeometry();
 694         }
 695         else // fall back to the main desktop
 696 #else // wxUSE_DISPLAY
 697         {
 698             // FIXME: implement for WinCE
 699 #ifndef __WXWINCE__
 700             // resize to the size of the desktop
 701             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 702 #endif
 703         }
 704 #endif // wxUSE_DISPLAY
 705
 706         SetSize(rect);
 707
 708         // now flush the window style cache and actually go full-screen
 709         long flags = SWP_FRAMECHANGED;
 710
 711         // showing the frame full screen should also show it if it's still
 712         // hidden
 713         if ( !IsShown() )
 714         {
 715             // don't call wxWindow version to avoid flicker from calling
 716             // ::ShowWindow() -- we're going to show the window at the correct
 717             // location directly below -- but do call the wxWindowBase version
 718             // to sync the internal m_isShown flag
 719             wxWindowBase::Show();
 720
 721             flags |= SWP_SHOWWINDOW;
 722         }
 723
 724         SetWindowPos(GetHwnd(), HWND_TOP,
 725                      rect.x, rect.y, rect.width, rect.height,
 726                      flags);
 727
 728         // finally send an event allowing the window to relayout itself &c
 729         wxSizeEvent event(rect.GetSize(), GetId());
 730         GetEventHandler()->ProcessEvent(event);
 731     }
 732     else // stop showing full screen
 733     {
 734         Maximize(m_fsIsMaximized);
 735         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 736         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 737             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 738     }
 739
 740     return TRUE;
 741 }
 742
 743 // ----------------------------------------------------------------------------
 744 // wxTopLevelWindowMSW misc
 745 // ----------------------------------------------------------------------------
 746
 747 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 748 {
 749     SetIcons( wxIconBundle( icon ) );
 750 }
 751
 752 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 753 {
 754     wxTopLevelWindowBase::SetIcons(icons);
 755
 756 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 757     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 758     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 759     {
 760         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 761                        (LPARAM)GetHiconOf(sml) );
 762     }
 763
 764     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 765     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 766     {
 767         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 768                        (LPARAM)GetHiconOf(big) );
 769     }
 770 #endif // __WIN95__
 771 }
 772
 773 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 774 {
 775 #if !defined(__WXMICROWIN__)
 776     // get system (a.k.a. window) menu
 777     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 778     if ( !hmenu )
 779     {
 780         // no system menu at all -- ok if we want to remove the close button
 781         // anyhow, but bad if we want to show it
 782         return !enable;
 783     }
 784
 785     // enabling/disabling the close item from it also automatically
 786     // disables/enables the close title bar button
 787     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 788                           MF_BYCOMMAND |
 789                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 790     {
 791         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 792
 793         return FALSE;
 794     }
 795
 796     // update appearance immediately
 797     if ( !::DrawMenuBar(GetHwnd()) )
 798     {
 799         wxLogLastError(_T("DrawMenuBar"));
 800     }
 801 #endif // !__WXMICROWIN__
 802
 803     return TRUE;
 804 }
 805
 806 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 807 {
 808 #ifdef __WXWINCE__
 809     return FALSE;
 810 #else
 811     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 812                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 813
 814     // The empty region signifies that the shape should be removed from the
 815     // window.
 816     if ( region.IsEmpty() )
 817     {
 818         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 819         {
 820             wxLogLastError(_T("SetWindowRgn"));
 821             return FALSE;
 822         }
 823         return TRUE;
 824     }
 825
 826     // Windows takes ownership of the region, so
 827     // we'll have to make a copy of the region to give to it.
 828     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 829     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 830     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 831     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 832     delete[] (char*) rgnData;
 833
 834     // SetWindowRgn expects the region to be in coordinants
 835     // relative to the window, not the client area.  Figure
 836     // out the offset, if any.
 837     RECT rect;
 838     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 839     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 840     ::GetClientRect(GetHwnd(), &rect);
 841     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 842     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 843
 844     // Now call the shape API with the new region.
 845     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 846     {
 847         wxLogLastError(_T("SetWindowRgn"));
 848         return FALSE;
 849     }
 850     return TRUE;
 851 #endif
 852 }
 853
 854 // ----------------------------------------------------------------------------
 855 // wxTopLevelWindow event handling
 856 // ----------------------------------------------------------------------------
 857
 858 // Default activation behaviour - set the focus for the first child
 859 // subwindow found.
 860 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 861 {
 862     if ( event.GetActive() )
 863     {
 864         // restore focus to the child which was last focused
 865         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 866
 867         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 868                                             : NULL;
 869         if ( !parent )
 870         {
 871             parent = this;
 872         }
 873
 874         wxSetFocusToChild(parent, &m_winLastFocused);
 875     }
 876     else // deactivating
 877     {
 878         // remember the last focused child if it is our child
 879         m_winLastFocused = FindFocus();
 880
 881         if ( m_winLastFocused )
 882         {
 883             // let it know that it doesn't have focus any more
 884             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 885         }
 886
 887         // so we NULL it out if it's a child from some other frame
 888         wxWindow *win = m_winLastFocused;
 889         while ( win )
 890         {
 891             if ( win->IsTopLevel() )
 892             {
 893                 if ( win != this )
 894                 {
 895                     m_winLastFocused = NULL;
 896                 }
 897
 898                 break;
 899             }
 900
 901             win = win->GetParent();
 902         }
 903
 904         wxLogTrace(_T("focus"),
 905                    _T("wxTLW %08x deactivated, last focused: %08x."),
 906                    (int) m_hWnd,
 907                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 908                                            : NULL));
 909
 910         event.Skip();
 911     }
 912 }
 913
 914 // the DialogProc for all wxWindows dialogs
 915 LONG APIENTRY _EXPORT
 916 wxDlgProc(HWND WXUNUSED(hDlg),
 917           UINT message,
 918           WPARAM WXUNUSED(wParam),
 919           LPARAM WXUNUSED(lParam))
 920 {
 921     switch ( message )
 922     {
 923         case WM_INITDIALOG:
 924             // for this message, returning TRUE tells system to set focus to
 925             // the first control in the dialog box, but as we set the focus
 926             // ourselves, we return FALSE from here as well, so fall through
 927
 928         default:
 929             // for all the other ones, FALSE means that we didn't process the
 930             // message
 931             return FALSE;
 932     }
 933 }
 934
 935 // ============================================================================
 936 // wxTLWHiddenParentModule implementation
 937 // ============================================================================
 938
 939 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 940
 941 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 942
 943 bool wxTLWHiddenParentModule::OnInit()
 944 {
 945     ms_hwnd = NULL;
 946     ms_className = NULL;
 947
 948     return TRUE;
 949 }
 950
 951 void wxTLWHiddenParentModule::OnExit()
 952 {
 953     if ( ms_hwnd )
 954     {
 955         if ( !::DestroyWindow(ms_hwnd) )
 956         {
 957             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 958         }
 959
 960         ms_hwnd = NULL;
 961     }
 962
 963     if ( ms_className )
 964     {
 965         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 966         {
 967             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 968         }
 969
 970         ms_className = NULL;
 971     }
 972 }
 973
 974 /* static */
 975 HWND wxTLWHiddenParentModule::GetHWND()
 976 {
 977     if ( !ms_hwnd )
 978     {
 979         if ( !ms_className )
 980         {
 981             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 982
 983             WNDCLASS wndclass;
 984             wxZeroMemory(wndclass);
 985
 986             wndclass.lpfnWndProc   = DefWindowProc;
 987             wndclass.hInstance     = wxGetInstance();
 988             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
 989
 990             if ( !::RegisterClass(&wndclass) )
 991             {
 992                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
 993             }
 994             else
 995             {
 996                 ms_className = HIDDEN_PARENT_CLASS;
 997             }
 998         }
 999
1000         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1001                                  (HMENU)NULL, wxGetInstance(), NULL);
1002         if ( !ms_hwnd )
1003         {
1004             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1005         }
1006     }
1007
1008     return ms_hwnd;
1009 }
1010
1011