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/missing.h"
  45
  46 #if defined(__WXWINCE__)
  47   #include <ole2.h>
  48   #include <shellapi.h>
  49   #if _WIN32_WCE < 400
  50     #include <aygshell.h>
  51   #endif
  52 #include "wx/msw/wince/missing.h"
  53 #endif
  54
  55 #include "wx/msw/winundef.h"
  56
  57 // This can't be undefed in winundef.h or
  58 // there are further errors
  59 #if defined(__WXWINCE__) && defined(CreateDialog)
  60 #undef CreateDialog
  61 #endif
  62
  63 #include "wx/display.h"
  64
  65 #ifndef ICON_BIG
  66     #define ICON_BIG 1
  67 #endif
  68
  69 #ifndef ICON_SMALL
  70     #define ICON_SMALL 0
  71 #endif
  72
  73 // ----------------------------------------------------------------------------
  74 // stubs for missing functions under MicroWindows
  75 // ----------------------------------------------------------------------------
  76
  77 #ifdef __WXMICROWIN__
  78
  79 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  80 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  81
  82 #endif // __WXMICROWIN__
  83
  84 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  85 //     is not included by wxUniv build which does need wxDlgProc
  86 LONG APIENTRY _EXPORT
  87 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  88
  89 // ----------------------------------------------------------------------------
  90 // globals
  91 // ----------------------------------------------------------------------------
  92
  93 // list of all frames and modeless dialogs
  94 wxWindowList wxModelessWindows;
  95
  96 // the name of the default wxWindows class
  97 extern const wxChar *wxCanvasClassName;
  98
  99 // ----------------------------------------------------------------------------
 100 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
 101 // module to ensure that the window is always deleted)
 102 // ----------------------------------------------------------------------------
 103
 104 class wxTLWHiddenParentModule : public wxModule
 105 {
 106 public:
 107     // module init/finalize
 108     virtual bool OnInit();
 109     virtual void OnExit();
 110
 111     // get the hidden window (creates on demand)
 112     static HWND GetHWND();
 113
 114 private:
 115     // the HWND of the hidden parent
 116     static HWND ms_hwnd;
 117
 118     // the class used to create it
 119     static const wxChar *ms_className;
 120
 121     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 122 };
 123
 124 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 125
 126 // ============================================================================
 127 // wxTopLevelWindowMSW implementation
 128 // ============================================================================
 129
 130 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 131     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 132 END_EVENT_TABLE()
 133
 134 // ----------------------------------------------------------------------------
 135 // wxTopLevelWindowMSW creation
 136 // ----------------------------------------------------------------------------
 137
 138 void wxTopLevelWindowMSW::Init()
 139 {
 140     m_iconized =
 141     m_maximizeOnShow = FALSE;
 142
 143     // unlike (almost?) all other windows, frames are created hidden
 144     m_isShown = FALSE;
 145
 146     // Data to save/restore when calling ShowFullScreen
 147     m_fsStyle = 0;
 148     m_fsOldWindowStyle = 0;
 149     m_fsIsMaximized = FALSE;
 150     m_fsIsShowing = FALSE;
 151
 152     m_winLastFocused = (wxWindow *)NULL;
 153 }
 154
 155 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 156 {
 157     // let the base class deal with the common styles but fix the ones which
 158     // don't make sense for us (we also deal with the borders ourselves)
 159     WXDWORD msflags = wxWindow::MSWGetStyle
 160                       (
 161                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 162                       ) & ~WS_CHILD & ~WS_VISIBLE;
 163
 164     // first select the kind of window being created
 165     //
 166     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 167     // creates a window with both caption and border, hence we also test it
 168     // below in some other cases
 169     if ( style & wxFRAME_TOOL_WINDOW )
 170         msflags |= WS_POPUP;
 171     else
 172     {
 173 #ifdef __WXWINCE__
 174         if (msflags & WS_BORDER)
 175 #endif
 176             msflags |= WS_OVERLAPPED;
 177     }
 178
 179     // border and caption styles
 180     if ( style & wxRESIZE_BORDER )
 181     {
 182 #ifndef __WXWINCE__
 183         msflags |= WS_THICKFRAME;
 184 #endif
 185     }
 186     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 187         *exflags |= WS_EX_DLGMODALFRAME;
 188     else if ( !(style & wxBORDER_NONE) )
 189         msflags |= WS_BORDER;
 190 #ifndef __WXWINCE__
 191     else
 192         msflags |= WS_POPUP;
 193 #endif
 194
 195     if ( style & wxCAPTION )
 196         msflags |= WS_CAPTION;
 197 #ifndef __WXWINCE__
 198     else
 199         msflags |= WS_POPUP;
 200 #endif
 201
 202     // next translate the individual flags
 203     if ( style & wxMINIMIZE_BOX )
 204         msflags |= WS_MINIMIZEBOX;
 205     if ( style & wxMAXIMIZE_BOX )
 206         msflags |= WS_MAXIMIZEBOX;
 207     if ( style & wxSYSTEM_MENU )
 208         msflags |= WS_SYSMENU;
 209 #ifndef __WXWINCE__
 210     if ( style & wxMINIMIZE )
 211         msflags |= WS_MINIMIZE;
 212     if ( style & wxMAXIMIZE )
 213         msflags |= WS_MAXIMIZE;
 214 #endif
 215
 216     // Keep this here because it saves recoding this function in wxTinyFrame
 217 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 218     if ( style & wxTINY_CAPTION_VERT )
 219         msflags |= IBS_VERTCAPTION;
 220     if ( style & wxTINY_CAPTION_HORIZ )
 221         msflags |= IBS_HORZCAPTION;
 222 #else
 223     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 224         msflags |= WS_CAPTION;
 225 #endif
 226
 227     if ( exflags )
 228     {
 229 #if !defined(__WIN16__)
 230         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 231         {
 232             if ( style & wxFRAME_TOOL_WINDOW )
 233             {
 234                 // create the palette-like window
 235                 *exflags |= WS_EX_TOOLWINDOW;
 236
 237                 // tool windows shouldn't appear on the taskbar (as documented)
 238                 style |= wxFRAME_NO_TASKBAR;
 239             }
 240
 241             // We have to solve 2 different problems here:
 242             //
 243             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 244             //    taskbar even if they don't have a parent
 245             //
 246             // 2. frames without this style should appear in the taskbar even
 247             //    if they're owned (Windows only puts non owned windows into
 248             //    the taskbar normally)
 249             //
 250             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 251             // first one is dealt with in our MSWGetParent() method
 252             // implementation
 253 #ifndef __WXWINCE__
 254             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 255             {
 256                 // need to force the frame to appear in the taskbar
 257                 *exflags |= WS_EX_APPWINDOW;
 258             }
 259 #endif
 260             //else: nothing to do [here]
 261         }
 262 #endif // !Win16
 263
 264         if ( style & wxSTAY_ON_TOP )
 265             *exflags |= WS_EX_TOPMOST;
 266
 267 #ifdef __WIN32__
 268         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 269             *exflags |= WS_EX_CONTEXTHELP;
 270 #endif // __WIN32__
 271     }
 272
 273     return msflags;
 274 }
 275
 276 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 277 {
 278     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 279     // parent HWND or it would be always on top of its parent which is not what
 280     // we usually want (in fact, we only want it for frames with the
 281     // wxFRAME_FLOAT_ON_PARENT flag)
 282     HWND hwndParent = NULL;
 283     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 284     {
 285         const wxWindow *parent = GetParent();
 286
 287         if ( !parent )
 288         {
 289             // this flag doesn't make sense then and will be ignored
 290             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 291         }
 292         else
 293         {
 294             hwndParent = GetHwndOf(parent);
 295         }
 296     }
 297     //else: don't float on parent, must not be owned
 298
 299     // now deal with the 2nd taskbar-related problem (see comments above in
 300     // MSWGetStyle())
 301     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 302     {
 303         // use hidden parent
 304         hwndParent = wxTLWHiddenParentModule::GetHWND();
 305     }
 306
 307     return (WXHWND)hwndParent;
 308 }
 309
 310 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 311                                        const wxString& title,
 312                                        const wxPoint& pos,
 313                                        const wxSize& size)
 314 {
 315 #ifdef __WXMICROWIN__
 316     // no dialogs support under MicroWin yet
 317     return CreateFrame(title, pos, size);
 318 #else // !__WXMICROWIN__
 319     wxWindow *parent = GetParent();
 320
 321     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 322     // app window as parent - this avoids creating modal dialogs without
 323     // parent
 324     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 325     {
 326         parent = wxTheApp->GetTopWindow();
 327
 328         if ( parent )
 329         {
 330             // don't use transient windows as parents, this is dangerous as it
 331             // can lead to a crash if the parent is destroyed before the child
 332             //
 333             // also don't use the window which is currently hidden as then the
 334             // dialog would be hidden as well
 335             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 336                     !parent->IsShown() )
 337             {
 338                 parent = NULL;
 339             }
 340         }
 341     }
 342
 343     m_hWnd = (WXHWND)::CreateDialogIndirect
 344                        (
 345                         wxGetInstance(),
 346                         (DLGTEMPLATE*)dlgTemplate,
 347                         parent ? GetHwndOf(parent) : NULL,
 348                         (DLGPROC)wxDlgProc
 349                        );
 350
 351     if ( !m_hWnd )
 352     {
 353         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 354
 355         wxLogSysError(wxT("Can't create dialog using memory template"));
 356
 357         return FALSE;
 358     }
 359
 360     WXDWORD exflags;
 361     (void)MSWGetCreateWindowFlags(&exflags);
 362
 363     if ( exflags )
 364     {
 365         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 366         ::SetWindowPos(GetHwnd(),
 367                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 368                        0, 0, 0, 0,
 369                        SWP_NOSIZE |
 370                        SWP_NOMOVE |
 371                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 372                        SWP_NOACTIVATE);
 373     }
 374
 375 #if defined(__WIN95__)
 376     // For some reason, the system menu is activated when we use the
 377     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 378     if ( exflags & WS_EX_CONTEXTHELP )
 379     {
 380         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 381         if ( winTop )
 382         {
 383             wxIcon icon = winTop->GetIcon();
 384             if ( icon.Ok() )
 385             {
 386                 ::SendMessage(GetHwnd(), WM_SETICON,
 387                               (WPARAM)TRUE,
 388                               (LPARAM)GetHiconOf(icon));
 389             }
 390         }
 391     }
 392 #endif // __WIN95__
 393
 394     // move the dialog to its initial position without forcing repainting
 395     int x, y, w, h;
 396     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 397     {
 398         x =
 399         w = (int)CW_USEDEFAULT;
 400     }
 401
 402     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 403     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 404     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 405     // sizer calculation in wxSizer::Fit()
 406     if ( w == (int)CW_USEDEFAULT )
 407     {
 408         // the exact number doesn't matter, the dialog will be resized
 409         // again soon anyhow but it should be big enough to allow
 410         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 411         // at least greater than the title bar height
 412         w =
 413         h = 100;
 414     }
 415
 416     if ( x == (int)CW_USEDEFAULT )
 417     {
 418         // centre it on the screen - what else can we do?
 419         wxSize sizeDpy = wxGetDisplaySize();
 420
 421         x = (sizeDpy.x - w) / 2;
 422         y = (sizeDpy.y - h) / 2;
 423     }
 424
 425     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 426     {
 427         wxLogLastError(wxT("MoveWindow"));
 428     }
 429
 430     if ( !title.empty() )
 431     {
 432         ::SetWindowText(GetHwnd(), title);
 433     }
 434
 435     SubclassWin(m_hWnd);
 436
 437     return TRUE;
 438 #endif // __WXMICROWIN__/!__WXMICROWIN__
 439 }
 440
 441 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 442                                       const wxPoint& pos,
 443                                       const wxSize& size)
 444 {
 445     WXDWORD exflags;
 446     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 447
 448     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 449 }
 450
 451 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 452                                  wxWindowID id,
 453                                  const wxString& title,
 454                                  const wxPoint& pos,
 455                                  const wxSize& size,
 456                                  long style,
 457                                  const wxString& name)
 458 {
 459     bool ret wxDUMMY_INITIALIZE(false);
 460
 461     // init our fields
 462     Init();
 463
 464     m_windowStyle = style;
 465
 466     SetName(name);
 467
 468     m_windowId = id == -1 ? NewControlId() : id;
 469
 470     wxTopLevelWindows.Append(this);
 471
 472     if ( parent )
 473         parent->AddChild(this);
 474
 475     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 476     {
 477         // we have different dialog templates to allows creation of dialogs
 478         // with & without captions under MSWindows, resizeable or not (but a
 479         // resizeable dialog always has caption - otherwise it would look too
 480         // strange)
 481
 482         // we need 3 additional WORDs for dialog menu, class and title (as we
 483         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 484         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 485         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 486         memset(dlgTemplate, 0, dlgsize);
 487
 488         // these values are arbitrary, they won't be used normally anyhow
 489         dlgTemplate->x  = 34;
 490         dlgTemplate->y  = 22;
 491         dlgTemplate->cx = 144;
 492         dlgTemplate->cy = 75;
 493
 494         // reuse the code in MSWGetStyle() but correct the results slightly for
 495         // the dialog
 496         dlgTemplate->style = MSWGetStyle(style, NULL);
 497
 498         // all dialogs are popups
 499         dlgTemplate->style |= WS_POPUP;
 500
 501         // force 3D-look if necessary, it looks impossibly ugly otherwise
 502         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 503             dlgTemplate->style |= DS_MODALFRAME;
 504
 505         ret = CreateDialog(dlgTemplate, title, pos, size);
 506         free(dlgTemplate);
 507     }
 508     else // !dialog
 509     {
 510         ret = CreateFrame(title, pos, size);
 511     }
 512
 513     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 514     {
 515         EnableCloseButton(false);
 516     }
 517
 518     // for some reason we need to manually send ourselves this message as
 519     // otherwise the mnemonics are always shown -- even if they're configured
 520     // to be hidden until "Alt" is pressed in the control panel
 521     //
 522     // this could indicate a bug somewhere else but for now this is the only
 523     // fix we have
 524     if ( ret )
 525     {
 526         SendMessage
 527         (
 528             GetHwnd(),
 529             WM_UPDATEUISTATE,
 530             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 531             0
 532         );
 533     }
 534
 535     return ret;
 536 }
 537
 538 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 539 {
 540     if ( wxModelessWindows.Find(this) )
 541         wxModelessWindows.DeleteObject(this);
 542
 543     // after destroying an owned window, Windows activates the next top level
 544     // window in Z order but it may be different from our owner (to reproduce
 545     // this simply Alt-TAB to another application and back before closing the
 546     // owned frame) whereas we always want to yield activation to our parent
 547     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 548     {
 549         wxWindow *parent = GetParent();
 550         if ( parent )
 551         {
 552             ::BringWindowToTop(GetHwndOf(parent));
 553         }
 554     }
 555 }
 556
 557 // ----------------------------------------------------------------------------
 558 // wxTopLevelWindowMSW showing
 559 // ----------------------------------------------------------------------------
 560
 561 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 562 {
 563     ::ShowWindow(GetHwnd(), nShowCmd);
 564
 565     m_iconized = nShowCmd == SW_MINIMIZE;
 566 }
 567
 568 bool wxTopLevelWindowMSW::Show(bool show)
 569 {
 570     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 571     if ( !wxWindowBase::Show(show) )
 572         return FALSE;
 573
 574     int nShowCmd;
 575     if ( show )
 576     {
 577         if ( m_maximizeOnShow )
 578         {
 579             // show and maximize
 580             nShowCmd = SW_MAXIMIZE;
 581
 582             m_maximizeOnShow = FALSE;
 583         }
 584         else // just show
 585         {
 586            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 587                nShowCmd = SW_SHOWNA;
 588            else
 589                nShowCmd = SW_SHOW;
 590         }
 591     }
 592     else // hide
 593     {
 594         nShowCmd = SW_HIDE;
 595     }
 596
 597     DoShowWindow(nShowCmd);
 598
 599     if ( show )
 600     {
 601         ::BringWindowToTop(GetHwnd());
 602
 603         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 604         event.SetEventObject( this );
 605         GetEventHandler()->ProcessEvent(event);
 606     }
 607     else // hide
 608     {
 609         // Try to highlight the correct window (the parent)
 610         if ( GetParent() )
 611         {
 612             HWND hWndParent = GetHwndOf(GetParent());
 613             if (hWndParent)
 614                 ::BringWindowToTop(hWndParent);
 615         }
 616     }
 617
 618     return TRUE;
 619 }
 620
 621 // ----------------------------------------------------------------------------
 622 // wxTopLevelWindowMSW maximize/minimize
 623 // ----------------------------------------------------------------------------
 624
 625 void wxTopLevelWindowMSW::Maximize(bool maximize)
 626 {
 627     if ( IsShown() )
 628     {
 629         // just maximize it directly
 630         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 631     }
 632     else // hidden
 633     {
 634         // we can't maximize the hidden frame because it shows it as well, so
 635         // just remember that we should do it later in this case
 636         m_maximizeOnShow = maximize;
 637     }
 638 }
 639
 640 bool wxTopLevelWindowMSW::IsMaximized() const
 641 {
 642 #ifdef __WXWINCE__
 643     return FALSE;
 644 #else
 645     return ::IsZoomed(GetHwnd()) != 0;
 646 #endif
 647 }
 648
 649 void wxTopLevelWindowMSW::Iconize(bool iconize)
 650 {
 651     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 652 }
 653
 654 bool wxTopLevelWindowMSW::IsIconized() const
 655 {
 656 #ifdef __WXWINCE__
 657     return FALSE;
 658 #else
 659     // also update the current state
 660     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 661
 662     return m_iconized;
 663 #endif
 664 }
 665
 666 void wxTopLevelWindowMSW::Restore()
 667 {
 668     DoShowWindow(SW_RESTORE);
 669 }
 670
 671 // ----------------------------------------------------------------------------
 672 // wxTopLevelWindowMSW fullscreen
 673 // ----------------------------------------------------------------------------
 674
 675 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 676 {
 677     if ( show == IsFullScreen() )
 678     {
 679         // nothing to do
 680         return TRUE;
 681     }
 682
 683     m_fsIsShowing = show;
 684
 685     if ( show )
 686     {
 687         m_fsStyle = style;
 688
 689         // zap the frame borders
 690
 691         // save the 'normal' window style
 692         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 693
 694         // save the old position, width & height, maximize state
 695         m_fsOldSize = GetRect();
 696         m_fsIsMaximized = IsMaximized();
 697
 698         // decide which window style flags to turn off
 699         LONG newStyle = m_fsOldWindowStyle;
 700         LONG offFlags = 0;
 701
 702         if (style & wxFULLSCREEN_NOBORDER)
 703         {
 704             offFlags |= WS_BORDER;
 705 #ifndef __WXWINCE__
 706             offFlags |= WS_THICKFRAME;
 707 #endif
 708         }
 709         if (style & wxFULLSCREEN_NOCAPTION)
 710             offFlags |= WS_CAPTION | WS_SYSMENU;
 711
 712         newStyle &= ~offFlags;
 713
 714         // change our window style to be compatible with full-screen mode
 715         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 716
 717         wxRect rect;
 718 #if wxUSE_DISPLAY
 719         // resize to the size of the display containing us
 720         int dpy = wxDisplay::GetFromWindow(this);
 721         if ( dpy != wxNOT_FOUND )
 722         {
 723             rect = wxDisplay(dpy).GetGeometry();
 724         }
 725         else // fall back to the main desktop
 726 #else // wxUSE_DISPLAY
 727         {
 728             // resize to the size of the desktop
 729             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 730 #ifdef __WXWINCE__
 731             // FIXME: size of the bottom menu (toolbar)
 732             // should be taken in account
 733             rect.height += rect.y;
 734             rect.y       = 0;
 735 #endif
 736         }
 737 #endif // wxUSE_DISPLAY
 738
 739         SetSize(rect);
 740
 741         // now flush the window style cache and actually go full-screen
 742         long flags = SWP_FRAMECHANGED;
 743
 744         // showing the frame full screen should also show it if it's still
 745         // hidden
 746         if ( !IsShown() )
 747         {
 748             // don't call wxWindow version to avoid flicker from calling
 749             // ::ShowWindow() -- we're going to show the window at the correct
 750             // location directly below -- but do call the wxWindowBase version
 751             // to sync the internal m_isShown flag
 752             wxWindowBase::Show();
 753
 754             flags |= SWP_SHOWWINDOW;
 755         }
 756
 757         SetWindowPos(GetHwnd(), HWND_TOP,
 758                      rect.x, rect.y, rect.width, rect.height,
 759                      flags);
 760
 761 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 762         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 763 #endif
 764
 765         // finally send an event allowing the window to relayout itself &c
 766         wxSizeEvent event(rect.GetSize(), GetId());
 767         GetEventHandler()->ProcessEvent(event);
 768     }
 769     else // stop showing full screen
 770     {
 771 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 772         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 773 #endif
 774         Maximize(m_fsIsMaximized);
 775         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 776         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 777             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 778     }
 779
 780     return TRUE;
 781 }
 782
 783 // ----------------------------------------------------------------------------
 784 // wxTopLevelWindowMSW misc
 785 // ----------------------------------------------------------------------------
 786
 787 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 788 {
 789     SetIcons( wxIconBundle( icon ) );
 790 }
 791
 792 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 793 {
 794     wxTopLevelWindowBase::SetIcons(icons);
 795
 796 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 797     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 798     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 799     {
 800         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 801                        (LPARAM)GetHiconOf(sml) );
 802     }
 803
 804     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 805     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 806     {
 807         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 808                        (LPARAM)GetHiconOf(big) );
 809     }
 810 #endif // __WIN95__
 811 }
 812
 813 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 814 {
 815 #if !defined(__WXMICROWIN__)
 816     // get system (a.k.a. window) menu
 817     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 818     if ( !hmenu )
 819     {
 820         // no system menu at all -- ok if we want to remove the close button
 821         // anyhow, but bad if we want to show it
 822         return !enable;
 823     }
 824
 825     // enabling/disabling the close item from it also automatically
 826     // disables/enables the close title bar button
 827     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 828                           MF_BYCOMMAND |
 829                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 830     {
 831         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 832
 833         return FALSE;
 834     }
 835
 836     // update appearance immediately
 837     if ( !::DrawMenuBar(GetHwnd()) )
 838     {
 839         wxLogLastError(_T("DrawMenuBar"));
 840     }
 841 #endif // !__WXMICROWIN__
 842
 843     return TRUE;
 844 }
 845
 846 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 847 {
 848 #ifdef __WXWINCE__
 849     return FALSE;
 850 #else
 851     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 852                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 853
 854     // The empty region signifies that the shape should be removed from the
 855     // window.
 856     if ( region.IsEmpty() )
 857     {
 858         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 859         {
 860             wxLogLastError(_T("SetWindowRgn"));
 861             return FALSE;
 862         }
 863         return TRUE;
 864     }
 865
 866     // Windows takes ownership of the region, so
 867     // we'll have to make a copy of the region to give to it.
 868     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 869     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 870     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 871     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 872     delete[] (char*) rgnData;
 873
 874     // SetWindowRgn expects the region to be in coordinants
 875     // relative to the window, not the client area.  Figure
 876     // out the offset, if any.
 877     RECT rect;
 878     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 879     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 880     ::GetClientRect(GetHwnd(), &rect);
 881     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 882     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 883
 884     // Now call the shape API with the new region.
 885     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 886     {
 887         wxLogLastError(_T("SetWindowRgn"));
 888         return FALSE;
 889     }
 890     return TRUE;
 891 #endif
 892 }
 893
 894 // ----------------------------------------------------------------------------
 895 // wxTopLevelWindow event handling
 896 // ----------------------------------------------------------------------------
 897
 898 // Default activation behaviour - set the focus for the first child
 899 // subwindow found.
 900 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 901 {
 902     if ( event.GetActive() )
 903     {
 904         // restore focus to the child which was last focused unless we already
 905         // have it
 906         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 907
 908         wxWindow *winFocus = FindFocus();
 909         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 910         {
 911             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 912                                                 : NULL;
 913             if ( !parent )
 914             {
 915                 parent = this;
 916             }
 917
 918             wxSetFocusToChild(parent, &m_winLastFocused);
 919         }
 920     }
 921     else // deactivating
 922     {
 923         // remember the last focused child if it is our child
 924         m_winLastFocused = FindFocus();
 925
 926         if ( m_winLastFocused )
 927         {
 928             // let it know that it doesn't have focus any more
 929             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 930
 931             // and don't remember it if it's a child from some other frame
 932             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 933             {
 934                 m_winLastFocused = NULL;
 935             }
 936         }
 937
 938         wxLogTrace(_T("focus"),
 939                    _T("wxTLW %08x deactivated, last focused: %08x."),
 940                    (int) m_hWnd,
 941                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 942                                            : NULL));
 943
 944         event.Skip();
 945     }
 946 }
 947
 948 // the DialogProc for all wxWindows dialogs
 949 LONG APIENTRY _EXPORT
 950 wxDlgProc(HWND WXUNUSED(hDlg),
 951           UINT message,
 952           WPARAM WXUNUSED(wParam),
 953           LPARAM WXUNUSED(lParam))
 954 {
 955     switch ( message )
 956     {
 957         case WM_INITDIALOG:
 958             // for this message, returning TRUE tells system to set focus to
 959             // the first control in the dialog box, but as we set the focus
 960             // ourselves, we return FALSE from here as well, so fall through
 961
 962         default:
 963             // for all the other ones, FALSE means that we didn't process the
 964             // message
 965             return FALSE;
 966     }
 967 }
 968
 969 // ============================================================================
 970 // wxTLWHiddenParentModule implementation
 971 // ============================================================================
 972
 973 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 974
 975 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 976
 977 bool wxTLWHiddenParentModule::OnInit()
 978 {
 979     ms_hwnd = NULL;
 980     ms_className = NULL;
 981
 982     return TRUE;
 983 }
 984
 985 void wxTLWHiddenParentModule::OnExit()
 986 {
 987     if ( ms_hwnd )
 988     {
 989         if ( !::DestroyWindow(ms_hwnd) )
 990         {
 991             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 992         }
 993
 994         ms_hwnd = NULL;
 995     }
 996
 997     if ( ms_className )
 998     {
 999         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1000         {
1001             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1002         }
1003
1004         ms_className = NULL;
1005     }
1006 }
1007
1008 /* static */
1009 HWND wxTLWHiddenParentModule::GetHWND()
1010 {
1011     if ( !ms_hwnd )
1012     {
1013         if ( !ms_className )
1014         {
1015             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1016
1017             WNDCLASS wndclass;
1018             wxZeroMemory(wndclass);
1019
1020             wndclass.lpfnWndProc   = DefWindowProc;
1021             wndclass.hInstance     = wxGetInstance();
1022             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1023
1024             if ( !::RegisterClass(&wndclass) )
1025             {
1026                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1027             }
1028             else
1029             {
1030                 ms_className = HIDDEN_PARENT_CLASS;
1031             }
1032         }
1033
1034         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1035                                  (HMENU)NULL, wxGetInstance(), NULL);
1036         if ( !ms_hwnd )
1037         {
1038             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1039         }
1040     }
1041
1042     return ms_hwnd;
1043 }
1044
1045