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/dialog.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38     #include "wx/frame.h"
  39     #include "wx/containr.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/module.h"
  43
  44 #include "wx/msw/private.h"
  45 #if defined(__WXWINCE__)
  46   #include <ole2.h>
  47   #include <shellapi.h>
  48   #if _WIN32_WCE < 400
  49     #include <aygshell.h>
  50   #endif
  51 #include "wx/msw/wince/missing.h"
  52 #endif
  53
  54 #include "wx/msw/missing.h"
  55 #include "wx/msw/winundef.h"
  56
  57 #include "wx/display.h"
  58
  59 #ifndef ICON_BIG
  60     #define ICON_BIG 1
  61 #endif
  62
  63 #ifndef ICON_SMALL
  64     #define ICON_SMALL 0
  65 #endif
  66
  67 // ----------------------------------------------------------------------------
  68 // stubs for missing functions under MicroWindows
  69 // ----------------------------------------------------------------------------
  70
  71 #ifdef __WXMICROWIN__
  72
  73 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  74 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  75
  76 #endif // __WXMICROWIN__
  77
  78 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  79 //     is not included by wxUniv build which does need wxDlgProc
  80 LONG APIENTRY _EXPORT
  81 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  82
  83 // ----------------------------------------------------------------------------
  84 // globals
  85 // ----------------------------------------------------------------------------
  86
  87 // list of all frames and modeless dialogs
  88 wxWindowList wxModelessWindows;
  89
  90 // the name of the default wxWindows class
  91 extern const wxChar *wxCanvasClassName;
  92
  93 // ----------------------------------------------------------------------------
  94 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  95 // module to ensure that the window is always deleted)
  96 // ----------------------------------------------------------------------------
  97
  98 class wxTLWHiddenParentModule : public wxModule
  99 {
 100 public:
 101     // module init/finalize
 102     virtual bool OnInit();
 103     virtual void OnExit();
 104
 105     // get the hidden window (creates on demand)
 106     static HWND GetHWND();
 107
 108 private:
 109     // the HWND of the hidden parent
 110     static HWND ms_hwnd;
 111
 112     // the class used to create it
 113     static const wxChar *ms_className;
 114
 115     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 116 };
 117
 118 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 119
 120 // ============================================================================
 121 // wxTopLevelWindowMSW implementation
 122 // ============================================================================
 123
 124 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 125     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 126 END_EVENT_TABLE()
 127
 128 // ----------------------------------------------------------------------------
 129 // wxTopLevelWindowMSW creation
 130 // ----------------------------------------------------------------------------
 131
 132 void wxTopLevelWindowMSW::Init()
 133 {
 134     m_iconized =
 135     m_maximizeOnShow = FALSE;
 136
 137     // Data to save/restore when calling ShowFullScreen
 138     m_fsStyle = 0;
 139     m_fsOldWindowStyle = 0;
 140     m_fsIsMaximized = FALSE;
 141     m_fsIsShowing = FALSE;
 142
 143     m_winLastFocused = (wxWindow *)NULL;
 144 }
 145
 146 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 147 {
 148     // let the base class deal with the common styles but fix the ones which
 149     // don't make sense for us (we also deal with the borders ourselves)
 150     WXDWORD msflags = wxWindow::MSWGetStyle
 151                       (
 152                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 153                       ) & ~WS_CHILD & ~WS_VISIBLE;
 154
 155 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 156     msflags |= WS_VISIBLE;
 157 #endif
 158
 159     // first select the kind of window being created
 160     //
 161     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 162     // creates a window with both caption and border, hence we also test it
 163     // below in some other cases
 164     if ( style & wxFRAME_TOOL_WINDOW )
 165     {
 166         msflags |= WS_POPUP;
 167     }
 168     //else: WS_OVERLAPPED is 0 anyhow, so it is on by default
 169
 170     // border and caption styles
 171     if ( style & wxRESIZE_BORDER )
 172         msflags |= WS_THICKFRAME;
 173     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 174         *exflags |= WS_EX_DLGMODALFRAME;
 175     else if ( !(style & wxBORDER_NONE) )
 176         msflags |= WS_BORDER;
 177     else
 178         msflags |= WS_POPUP;
 179
 180     // normally we consider that all windows without caption must be popups,
 181     // but CE is an exception: there windows normally do not have the caption
 182     // but shouldn't be made popups as popups can't have menus and don't look
 183     // like normal windows anyhow
 184     if ( style & wxCAPTION )
 185         msflags |= WS_CAPTION;
 186 #ifndef __WXWINCE__
 187     else
 188         msflags |= WS_POPUP;
 189 #endif // !__WXWINCE__
 190
 191     // next translate the individual flags
 192     if ( style & wxMINIMIZE_BOX )
 193         msflags |= WS_MINIMIZEBOX;
 194     if ( style & wxMAXIMIZE_BOX )
 195         msflags |= WS_MAXIMIZEBOX;
 196     if ( style & wxSYSTEM_MENU )
 197         msflags |= WS_SYSMENU;
 198
 199     // NB: under CE these 2 styles are not supported currently, we should
 200     //     call Minimize()/Maximize() "manually" if we want to support them
 201     if ( style & wxMINIMIZE )
 202         msflags |= WS_MINIMIZE;
 203     if ( style & wxMAXIMIZE )
 204         msflags |= WS_MAXIMIZE;
 205
 206     // Keep this here because it saves recoding this function in wxTinyFrame
 207     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 208         msflags |= WS_CAPTION;
 209
 210     if ( exflags )
 211     {
 212         // there is no taskbar under CE, so omit all this
 213 #ifndef __WXWINCE__
 214         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 215         {
 216             if ( style & wxFRAME_TOOL_WINDOW )
 217             {
 218                 // create the palette-like window
 219                 *exflags |= WS_EX_TOOLWINDOW;
 220
 221                 // tool windows shouldn't appear on the taskbar (as documented)
 222                 style |= wxFRAME_NO_TASKBAR;
 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             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 238             {
 239                 // need to force the frame to appear in the taskbar
 240                 *exflags |= WS_EX_APPWINDOW;
 241             }
 242             //else: nothing to do [here]
 243         }
 244 #endif // !__WXWINCE__
 245
 246         if ( style & wxSTAY_ON_TOP )
 247             *exflags |= WS_EX_TOPMOST;
 248
 249         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 250             *exflags |= WS_EX_CONTEXTHELP;
 251     }
 252
 253     return msflags;
 254 }
 255
 256 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 257 {
 258     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 259     // parent HWND or it would be always on top of its parent which is not what
 260     // we usually want (in fact, we only want it for frames with the
 261     // wxFRAME_FLOAT_ON_PARENT flag)
 262     HWND hwndParent = NULL;
 263     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 264     {
 265         const wxWindow *parent = GetParent();
 266
 267         if ( !parent )
 268         {
 269             // this flag doesn't make sense then and will be ignored
 270             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 271         }
 272         else
 273         {
 274             hwndParent = GetHwndOf(parent);
 275         }
 276     }
 277     //else: don't float on parent, must not be owned
 278
 279     // now deal with the 2nd taskbar-related problem (see comments above in
 280     // MSWGetStyle())
 281     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 282     {
 283         // use hidden parent
 284         hwndParent = wxTLWHiddenParentModule::GetHWND();
 285     }
 286
 287     return (WXHWND)hwndParent;
 288 }
 289
 290 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 291                                        const wxString& title,
 292                                        const wxPoint& pos,
 293                                        const wxSize& size)
 294 {
 295 #ifdef __WXMICROWIN__
 296     // no dialogs support under MicroWin yet
 297     return CreateFrame(title, pos, size);
 298 #else // !__WXMICROWIN__
 299     wxWindow *parent = GetParent();
 300
 301     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 302     // app window as parent - this avoids creating modal dialogs without
 303     // parent
 304     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 305     {
 306         parent = wxTheApp->GetTopWindow();
 307
 308         if ( parent )
 309         {
 310             // don't use transient windows as parents, this is dangerous as it
 311             // can lead to a crash if the parent is destroyed before the child
 312             //
 313             // also don't use the window which is currently hidden as then the
 314             // dialog would be hidden as well
 315             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 316                     !parent->IsShown() )
 317             {
 318                 parent = NULL;
 319             }
 320         }
 321     }
 322
 323     m_hWnd = (WXHWND)::CreateDialogIndirect
 324                        (
 325                         wxGetInstance(),
 326                         (DLGTEMPLATE*)dlgTemplate,
 327                         parent ? GetHwndOf(parent) : NULL,
 328                         (DLGPROC)wxDlgProc
 329                        );
 330
 331     if ( !m_hWnd )
 332     {
 333         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 334
 335         wxLogSysError(wxT("Can't create dialog using memory template"));
 336
 337         return FALSE;
 338     }
 339
 340     WXDWORD exflags;
 341     (void)MSWGetCreateWindowFlags(&exflags);
 342
 343     if ( exflags )
 344     {
 345         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 346         ::SetWindowPos(GetHwnd(),
 347                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 348                        0, 0, 0, 0,
 349                        SWP_NOSIZE |
 350                        SWP_NOMOVE |
 351                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 352                        SWP_NOACTIVATE);
 353     }
 354
 355 #if defined(__WIN95__)
 356     // For some reason, the system menu is activated when we use the
 357     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 358     if ( exflags & WS_EX_CONTEXTHELP )
 359     {
 360         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 361         if ( winTop )
 362         {
 363             wxIcon icon = winTop->GetIcon();
 364             if ( icon.Ok() )
 365             {
 366                 ::SendMessage(GetHwnd(), WM_SETICON,
 367                               (WPARAM)TRUE,
 368                               (LPARAM)GetHiconOf(icon));
 369             }
 370         }
 371     }
 372 #endif // __WIN95__
 373
 374     // move the dialog to its initial position without forcing repainting
 375     int x, y, w, h;
 376     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 377
 378     if ( x == (int)CW_USEDEFAULT )
 379     {
 380         // centre it on the screen - what else can we do?
 381         wxSize sizeDpy = wxGetDisplaySize();
 382
 383         x = (sizeDpy.x - w) / 2;
 384         y = (sizeDpy.y - h) / 2;
 385     }
 386
 387 #ifndef __WXWINCE__
 388     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 389     {
 390         wxLogLastError(wxT("MoveWindow"));
 391     }
 392 #endif
 393
 394     if ( !title.empty() )
 395     {
 396         ::SetWindowText(GetHwnd(), title);
 397     }
 398
 399     SubclassWin(m_hWnd);
 400
 401     return TRUE;
 402 #endif // __WXMICROWIN__/!__WXMICROWIN__
 403 }
 404
 405 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 406                                       const wxPoint& pos,
 407                                       const wxSize& size)
 408 {
 409     WXDWORD exflags;
 410     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 411
 412     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 413 }
 414
 415 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 416                                  wxWindowID id,
 417                                  const wxString& title,
 418                                  const wxPoint& pos,
 419                                  const wxSize& size,
 420                                  long style,
 421                                  const wxString& name)
 422 {
 423     bool ret wxDUMMY_INITIALIZE(false);
 424
 425     // init our fields
 426     Init();
 427
 428     wxSize sizeReal = size;
 429     if ( !sizeReal.IsFullySpecified() )
 430     {
 431         sizeReal.SetDefaults(GetDefaultSize());
 432     }
 433
 434     m_windowStyle = style;
 435
 436     SetName(name);
 437
 438     m_windowId = id == -1 ? NewControlId() : id;
 439
 440     wxTopLevelWindows.Append(this);
 441
 442     if ( parent )
 443         parent->AddChild(this);
 444
 445     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 446     {
 447         // we have different dialog templates to allows creation of dialogs
 448         // with & without captions under MSWindows, resizeable or not (but a
 449         // resizeable dialog always has caption - otherwise it would look too
 450         // strange)
 451
 452         // we need 3 additional WORDs for dialog menu, class and title (as we
 453         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 454         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 455         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 456         memset(dlgTemplate, 0, dlgsize);
 457
 458         // these values are arbitrary, they won't be used normally anyhow
 459         dlgTemplate->x  = 34;
 460         dlgTemplate->y  = 22;
 461         dlgTemplate->cx = 144;
 462         dlgTemplate->cy = 75;
 463
 464         // reuse the code in MSWGetStyle() but correct the results slightly for
 465         // the dialog
 466         dlgTemplate->style = MSWGetStyle(style, NULL);
 467
 468         // all dialogs are popups
 469         dlgTemplate->style |= WS_POPUP;
 470
 471         // force 3D-look if necessary, it looks impossibly ugly otherwise
 472         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 473             dlgTemplate->style |= DS_MODALFRAME;
 474
 475         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 476         free(dlgTemplate);
 477     }
 478     else // !dialog
 479     {
 480         ret = CreateFrame(title, pos, sizeReal);
 481     }
 482
 483     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 484     {
 485         EnableCloseButton(false);
 486     }
 487
 488     // for some reason we need to manually send ourselves this message as
 489     // otherwise the mnemonics are always shown -- even if they're configured
 490     // to be hidden until "Alt" is pressed in the control panel
 491     //
 492     // this could indicate a bug somewhere else but for now this is the only
 493     // fix we have
 494     if ( ret )
 495     {
 496         SendMessage
 497         (
 498             GetHwnd(),
 499             WM_UPDATEUISTATE,
 500             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 501             0
 502         );
 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             // resize to the size of the desktop
 699             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 700 #ifdef __WXWINCE__
 701             // FIXME: size of the bottom menu (toolbar)
 702             // should be taken in account
 703             rect.height += rect.y;
 704             rect.y       = 0;
 705 #endif
 706         }
 707 #endif // wxUSE_DISPLAY
 708
 709         SetSize(rect);
 710
 711         // now flush the window style cache and actually go full-screen
 712         long flags = SWP_FRAMECHANGED;
 713
 714         // showing the frame full screen should also show it if it's still
 715         // hidden
 716         if ( !IsShown() )
 717         {
 718             // don't call wxWindow version to avoid flicker from calling
 719             // ::ShowWindow() -- we're going to show the window at the correct
 720             // location directly below -- but do call the wxWindowBase version
 721             // to sync the internal m_isShown flag
 722             wxWindowBase::Show();
 723
 724             flags |= SWP_SHOWWINDOW;
 725         }
 726
 727         SetWindowPos(GetHwnd(), HWND_TOP,
 728                      rect.x, rect.y, rect.width, rect.height,
 729                      flags);
 730
 731 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 732         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 733 #endif
 734
 735         // finally send an event allowing the window to relayout itself &c
 736         wxSizeEvent event(rect.GetSize(), GetId());
 737         GetEventHandler()->ProcessEvent(event);
 738     }
 739     else // stop showing full screen
 740     {
 741 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 742         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 743 #endif
 744         Maximize(m_fsIsMaximized);
 745         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 746         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 747             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 748     }
 749
 750     return TRUE;
 751 }
 752
 753 // ----------------------------------------------------------------------------
 754 // wxTopLevelWindowMSW misc
 755 // ----------------------------------------------------------------------------
 756
 757 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 758 {
 759     SetIcons( wxIconBundle( icon ) );
 760 }
 761
 762 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 763 {
 764     wxTopLevelWindowBase::SetIcons(icons);
 765
 766 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 767     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 768     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 769     {
 770         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 771                        (LPARAM)GetHiconOf(sml) );
 772     }
 773
 774     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 775     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 776     {
 777         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 778                        (LPARAM)GetHiconOf(big) );
 779     }
 780 #endif // __WIN95__
 781 }
 782
 783 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 784 {
 785 #if !defined(__WXMICROWIN__)
 786     // get system (a.k.a. window) menu
 787     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 788     if ( !hmenu )
 789     {
 790         // no system menu at all -- ok if we want to remove the close button
 791         // anyhow, but bad if we want to show it
 792         return !enable;
 793     }
 794
 795     // enabling/disabling the close item from it also automatically
 796     // disables/enables the close title bar button
 797     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 798                           MF_BYCOMMAND |
 799                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 800     {
 801         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 802
 803         return FALSE;
 804     }
 805
 806     // update appearance immediately
 807     if ( !::DrawMenuBar(GetHwnd()) )
 808     {
 809         wxLogLastError(_T("DrawMenuBar"));
 810     }
 811 #endif // !__WXMICROWIN__
 812
 813     return TRUE;
 814 }
 815
 816 #ifndef __WXWINCE__
 817
 818 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 819 {
 820     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 821                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 822
 823     // The empty region signifies that the shape should be removed from the
 824     // window.
 825     if ( region.IsEmpty() )
 826     {
 827         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 828         {
 829             wxLogLastError(_T("SetWindowRgn"));
 830             return FALSE;
 831         }
 832         return TRUE;
 833     }
 834
 835     // Windows takes ownership of the region, so
 836     // we'll have to make a copy of the region to give to it.
 837     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 838     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 839     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 840     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 841     delete[] (char*) rgnData;
 842
 843     // SetWindowRgn expects the region to be in coordinants
 844     // relative to the window, not the client area.  Figure
 845     // out the offset, if any.
 846     RECT rect;
 847     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 848     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 849     ::GetClientRect(GetHwnd(), &rect);
 850     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 851     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 852
 853     // Now call the shape API with the new region.
 854     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 855     {
 856         wxLogLastError(_T("SetWindowRgn"));
 857         return FALSE;
 858     }
 859     return TRUE;
 860 }
 861
 862 #endif // !__WXWINCE__
 863
 864 // ----------------------------------------------------------------------------
 865 // wxTopLevelWindow event handling
 866 // ----------------------------------------------------------------------------
 867
 868 // Default activation behaviour - set the focus for the first child
 869 // subwindow found.
 870 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 871 {
 872     if ( event.GetActive() )
 873     {
 874         // restore focus to the child which was last focused unless we already
 875         // have it
 876         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 877
 878         wxWindow *winFocus = FindFocus();
 879         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 880         {
 881             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 882                                                 : NULL;
 883             if ( !parent )
 884             {
 885                 parent = this;
 886             }
 887
 888             wxSetFocusToChild(parent, &m_winLastFocused);
 889         }
 890     }
 891     else // deactivating
 892     {
 893         // remember the last focused child if it is our child
 894         m_winLastFocused = FindFocus();
 895
 896         if ( m_winLastFocused )
 897         {
 898             // let it know that it doesn't have focus any more
 899             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 900
 901             // and don't remember it if it's a child from some other frame
 902             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 903             {
 904                 m_winLastFocused = NULL;
 905             }
 906         }
 907
 908         wxLogTrace(_T("focus"),
 909                    _T("wxTLW %08x deactivated, last focused: %08x."),
 910                    (int) m_hWnd,
 911                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 912                                            : NULL));
 913
 914         event.Skip();
 915     }
 916 }
 917
 918 // the DialogProc for all wxWindows dialogs
 919 LONG APIENTRY _EXPORT
 920 wxDlgProc(HWND hDlg,
 921           UINT message,
 922           WPARAM WXUNUSED(wParam),
 923           LPARAM WXUNUSED(lParam))
 924 {
 925     switch ( message )
 926     {
 927         case WM_INITDIALOG:
 928             // for this message, returning TRUE tells system to set focus to
 929             // the first control in the dialog box, but as we set the focus
 930             // ourselves, we return FALSE from here as well, so fall through
 931 #ifdef __WXWINCE__
 932         {
 933             SHINITDLGINFO shidi;
 934             shidi.dwMask = SHIDIM_FLAGS;
 935             shidi.dwFlags = SHIDIF_DONEBUTTON |
 936                             SHIDIF_SIZEDLGFULLSCREEN;
 937             shidi.hDlg = hDlg;
 938             SHInitDialog( &shidi );
 939         }
 940 #endif
 941
 942         default:
 943             // for all the other ones, FALSE means that we didn't process the
 944             // message
 945             return FALSE;
 946     }
 947 }
 948
 949 // ============================================================================
 950 // wxTLWHiddenParentModule implementation
 951 // ============================================================================
 952
 953 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 954
 955 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 956
 957 bool wxTLWHiddenParentModule::OnInit()
 958 {
 959     ms_hwnd = NULL;
 960     ms_className = NULL;
 961
 962     return TRUE;
 963 }
 964
 965 void wxTLWHiddenParentModule::OnExit()
 966 {
 967     if ( ms_hwnd )
 968     {
 969         if ( !::DestroyWindow(ms_hwnd) )
 970         {
 971             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 972         }
 973
 974         ms_hwnd = NULL;
 975     }
 976
 977     if ( ms_className )
 978     {
 979         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 980         {
 981             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 982         }
 983
 984         ms_className = NULL;
 985     }
 986 }
 987
 988 /* static */
 989 HWND wxTLWHiddenParentModule::GetHWND()
 990 {
 991     if ( !ms_hwnd )
 992     {
 993         if ( !ms_className )
 994         {
 995             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 996
 997             WNDCLASS wndclass;
 998             wxZeroMemory(wndclass);
 999
1000             wndclass.lpfnWndProc   = DefWindowProc;
1001             wndclass.hInstance     = wxGetInstance();
1002             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1003
1004             if ( !::RegisterClass(&wndclass) )
1005             {
1006                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1007             }
1008             else
1009             {
1010                 ms_className = HIDDEN_PARENT_CLASS;
1011             }
1012         }
1013
1014         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1015                                  (HMENU)NULL, wxGetInstance(), NULL);
1016         if ( !ms_hwnd )
1017         {
1018             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1019         }
1020     }
1021
1022     return ms_hwnd;
1023 }
1024
1025