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 #if defined(__WXWINCE__)
  45   #include <ole2.h>
  46   #include <shellapi.h>
  47   #if _WIN32_WCE < 400
  48     #include <aygshell.h>
  49   #endif
  50 #include "wx/msw/wince/missing.h"
  51 #endif
  52
  53 #include "wx/msw/missing.h"
  54 #include "wx/msw/winundef.h"
  55
  56 // This can't be undefed in winundef.h or
  57 // there are further errors
  58 #if defined(__WXWINCE__) && defined(CreateDialog)
  59 #undef CreateDialog
  60 #endif
  61
  62 #include "wx/display.h"
  63
  64 #ifndef ICON_BIG
  65     #define ICON_BIG 1
  66 #endif
  67
  68 #ifndef ICON_SMALL
  69     #define ICON_SMALL 0
  70 #endif
  71
  72 // ----------------------------------------------------------------------------
  73 // stubs for missing functions under MicroWindows
  74 // ----------------------------------------------------------------------------
  75
  76 #ifdef __WXMICROWIN__
  77
  78 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  79 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  80
  81 #endif // __WXMICROWIN__
  82
  83 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  84 //     is not included by wxUniv build which does need wxDlgProc
  85 LONG APIENTRY _EXPORT
  86 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  87
  88 // ----------------------------------------------------------------------------
  89 // globals
  90 // ----------------------------------------------------------------------------
  91
  92 // list of all frames and modeless dialogs
  93 wxWindowList wxModelessWindows;
  94
  95 // the name of the default wxWindows class
  96 extern const wxChar *wxCanvasClassName;
  97
  98 // ----------------------------------------------------------------------------
  99 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
 100 // module to ensure that the window is always deleted)
 101 // ----------------------------------------------------------------------------
 102
 103 class wxTLWHiddenParentModule : public wxModule
 104 {
 105 public:
 106     // module init/finalize
 107     virtual bool OnInit();
 108     virtual void OnExit();
 109
 110     // get the hidden window (creates on demand)
 111     static HWND GetHWND();
 112
 113 private:
 114     // the HWND of the hidden parent
 115     static HWND ms_hwnd;
 116
 117     // the class used to create it
 118     static const wxChar *ms_className;
 119
 120     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 121 };
 122
 123 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 124
 125 // ============================================================================
 126 // wxTopLevelWindowMSW implementation
 127 // ============================================================================
 128
 129 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 130     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 131 END_EVENT_TABLE()
 132
 133 // ----------------------------------------------------------------------------
 134 // wxTopLevelWindowMSW creation
 135 // ----------------------------------------------------------------------------
 136
 137 void wxTopLevelWindowMSW::Init()
 138 {
 139     m_iconized =
 140     m_maximizeOnShow = FALSE;
 141
 142     // unlike (almost?) all other windows, frames are created hidden
 143     m_isShown = FALSE;
 144
 145     // Data to save/restore when calling ShowFullScreen
 146     m_fsStyle = 0;
 147     m_fsOldWindowStyle = 0;
 148     m_fsIsMaximized = FALSE;
 149     m_fsIsShowing = FALSE;
 150
 151     m_winLastFocused = (wxWindow *)NULL;
 152 }
 153
 154 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 155 {
 156     // let the base class deal with the common styles but fix the ones which
 157     // don't make sense for us (we also deal with the borders ourselves)
 158     WXDWORD msflags = wxWindow::MSWGetStyle
 159                       (
 160                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 161                       ) & ~WS_CHILD & ~WS_VISIBLE;
 162
 163     // first select the kind of window being created
 164     //
 165     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 166     // creates a window with both caption and border, hence we also test it
 167     // below in some other cases
 168     if ( style & wxFRAME_TOOL_WINDOW )
 169         msflags |= WS_POPUP;
 170     else
 171     {
 172 #ifdef __WXWINCE__
 173         if (msflags & WS_BORDER)
 174 #endif
 175             msflags |= WS_OVERLAPPED;
 176     }
 177
 178     // border and caption styles
 179     if ( style & wxRESIZE_BORDER )
 180     {
 181 #ifndef __WXWINCE__
 182         msflags |= WS_THICKFRAME;
 183 #endif
 184     }
 185     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 186         *exflags |= WS_EX_DLGMODALFRAME;
 187     else if ( !(style & wxBORDER_NONE) )
 188         msflags |= WS_BORDER;
 189 #ifndef __WXWINCE__
 190     else
 191         msflags |= WS_POPUP;
 192 #endif
 193
 194     if ( style & wxCAPTION )
 195         msflags |= WS_CAPTION;
 196 #ifndef __WXWINCE__
 197     else
 198         msflags |= WS_POPUP;
 199 #endif
 200
 201     // next translate the individual flags
 202     if ( style & wxMINIMIZE_BOX )
 203         msflags |= WS_MINIMIZEBOX;
 204     if ( style & wxMAXIMIZE_BOX )
 205         msflags |= WS_MAXIMIZEBOX;
 206     if ( style & wxSYSTEM_MENU )
 207         msflags |= WS_SYSMENU;
 208 #ifndef __WXWINCE__
 209     if ( style & wxMINIMIZE )
 210         msflags |= WS_MINIMIZE;
 211     if ( style & wxMAXIMIZE )
 212         msflags |= WS_MAXIMIZE;
 213 #endif
 214
 215     // Keep this here because it saves recoding this function in wxTinyFrame
 216 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 217     if ( style & wxTINY_CAPTION_VERT )
 218         msflags |= IBS_VERTCAPTION;
 219     if ( style & wxTINY_CAPTION_HORIZ )
 220         msflags |= IBS_HORZCAPTION;
 221 #else
 222     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 223         msflags |= WS_CAPTION;
 224 #endif
 225
 226     if ( exflags )
 227     {
 228 #if !defined(__WIN16__)
 229         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 230         {
 231             if ( style & wxFRAME_TOOL_WINDOW )
 232             {
 233                 // create the palette-like window
 234                 *exflags |= WS_EX_TOOLWINDOW;
 235
 236                 // tool windows shouldn't appear on the taskbar (as documented)
 237                 style |= wxFRAME_NO_TASKBAR;
 238             }
 239
 240             // We have to solve 2 different problems here:
 241             //
 242             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 243             //    taskbar even if they don't have a parent
 244             //
 245             // 2. frames without this style should appear in the taskbar even
 246             //    if they're owned (Windows only puts non owned windows into
 247             //    the taskbar normally)
 248             //
 249             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 250             // first one is dealt with in our MSWGetParent() method
 251             // implementation
 252 #ifndef __WXWINCE__
 253             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 254             {
 255                 // need to force the frame to appear in the taskbar
 256                 *exflags |= WS_EX_APPWINDOW;
 257             }
 258 #endif
 259             //else: nothing to do [here]
 260         }
 261 #endif // !Win16
 262
 263         if ( style & wxSTAY_ON_TOP )
 264             *exflags |= WS_EX_TOPMOST;
 265
 266 #ifdef __WIN32__
 267         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 268             *exflags |= WS_EX_CONTEXTHELP;
 269 #endif // __WIN32__
 270     }
 271
 272     return msflags;
 273 }
 274
 275 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 276 {
 277     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 278     // parent HWND or it would be always on top of its parent which is not what
 279     // we usually want (in fact, we only want it for frames with the
 280     // wxFRAME_FLOAT_ON_PARENT flag)
 281     HWND hwndParent = NULL;
 282     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 283     {
 284         const wxWindow *parent = GetParent();
 285
 286         if ( !parent )
 287         {
 288             // this flag doesn't make sense then and will be ignored
 289             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 290         }
 291         else
 292         {
 293             hwndParent = GetHwndOf(parent);
 294         }
 295     }
 296     //else: don't float on parent, must not be owned
 297
 298     // now deal with the 2nd taskbar-related problem (see comments above in
 299     // MSWGetStyle())
 300     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 301     {
 302         // use hidden parent
 303         hwndParent = wxTLWHiddenParentModule::GetHWND();
 304     }
 305
 306     return (WXHWND)hwndParent;
 307 }
 308
 309 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 310                                        const wxString& title,
 311                                        const wxPoint& pos,
 312                                        const wxSize& size)
 313 {
 314 #ifdef __WXMICROWIN__
 315     // no dialogs support under MicroWin yet
 316     return CreateFrame(title, pos, size);
 317 #else // !__WXMICROWIN__
 318     wxWindow *parent = GetParent();
 319
 320     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 321     // app window as parent - this avoids creating modal dialogs without
 322     // parent
 323     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 324     {
 325         parent = wxTheApp->GetTopWindow();
 326
 327         if ( parent )
 328         {
 329             // don't use transient windows as parents, this is dangerous as it
 330             // can lead to a crash if the parent is destroyed before the child
 331             //
 332             // also don't use the window which is currently hidden as then the
 333             // dialog would be hidden as well
 334             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 335                     !parent->IsShown() )
 336             {
 337                 parent = NULL;
 338             }
 339         }
 340     }
 341
 342     m_hWnd = (WXHWND)::CreateDialogIndirect
 343                        (
 344                         wxGetInstance(),
 345                         (DLGTEMPLATE*)dlgTemplate,
 346                         parent ? GetHwndOf(parent) : NULL,
 347                         (DLGPROC)wxDlgProc
 348                        );
 349
 350     if ( !m_hWnd )
 351     {
 352         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 353
 354         wxLogSysError(wxT("Can't create dialog using memory template"));
 355
 356         return FALSE;
 357     }
 358
 359     WXDWORD exflags;
 360     (void)MSWGetCreateWindowFlags(&exflags);
 361
 362     if ( exflags )
 363     {
 364         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 365         ::SetWindowPos(GetHwnd(),
 366                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 367                        0, 0, 0, 0,
 368                        SWP_NOSIZE |
 369                        SWP_NOMOVE |
 370                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 371                        SWP_NOACTIVATE);
 372     }
 373
 374 #if defined(__WIN95__)
 375     // For some reason, the system menu is activated when we use the
 376     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 377     if ( exflags & WS_EX_CONTEXTHELP )
 378     {
 379         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 380         if ( winTop )
 381         {
 382             wxIcon icon = winTop->GetIcon();
 383             if ( icon.Ok() )
 384             {
 385                 ::SendMessage(GetHwnd(), WM_SETICON,
 386                               (WPARAM)TRUE,
 387                               (LPARAM)GetHiconOf(icon));
 388             }
 389         }
 390     }
 391 #endif // __WIN95__
 392
 393     // move the dialog to its initial position without forcing repainting
 394     int x, y, w, h;
 395     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 396     {
 397         x =
 398         w = (int)CW_USEDEFAULT;
 399     }
 400
 401     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 402     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 403     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 404     // sizer calculation in wxSizer::Fit()
 405     if ( w == (int)CW_USEDEFAULT )
 406     {
 407         // the exact number doesn't matter, the dialog will be resized
 408         // again soon anyhow but it should be big enough to allow
 409         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 410         // at least greater than the title bar height
 411         w =
 412         h = 100;
 413     }
 414
 415     if ( x == (int)CW_USEDEFAULT )
 416     {
 417         // centre it on the screen - what else can we do?
 418         wxSize sizeDpy = wxGetDisplaySize();
 419
 420         x = (sizeDpy.x - w) / 2;
 421         y = (sizeDpy.y - h) / 2;
 422     }
 423
 424     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 425     {
 426         wxLogLastError(wxT("MoveWindow"));
 427     }
 428
 429     if ( !title.empty() )
 430     {
 431         ::SetWindowText(GetHwnd(), title);
 432     }
 433
 434     SubclassWin(m_hWnd);
 435
 436     return TRUE;
 437 #endif // __WXMICROWIN__/!__WXMICROWIN__
 438 }
 439
 440 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 441                                       const wxPoint& pos,
 442                                       const wxSize& size)
 443 {
 444     WXDWORD exflags;
 445     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 446
 447     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 448 }
 449
 450 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 451                                  wxWindowID id,
 452                                  const wxString& title,
 453                                  const wxPoint& pos,
 454                                  const wxSize& size,
 455                                  long style,
 456                                  const wxString& name)
 457 {
 458     bool ret wxDUMMY_INITIALIZE(false);
 459     int w, h;
 460
 461     // init our fields
 462     Init();
 463     w = WidthDefault(size.x);
 464     h = HeightDefault(size.y);
 465
 466     m_windowStyle = style;
 467
 468     SetName(name);
 469
 470     m_windowId = id == -1 ? NewControlId() : id;
 471
 472     wxTopLevelWindows.Append(this);
 473
 474     if ( parent )
 475         parent->AddChild(this);
 476
 477     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 478     {
 479         // we have different dialog templates to allows creation of dialogs
 480         // with & without captions under MSWindows, resizeable or not (but a
 481         // resizeable dialog always has caption - otherwise it would look too
 482         // strange)
 483
 484         // we need 3 additional WORDs for dialog menu, class and title (as we
 485         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 486         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 487         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 488         memset(dlgTemplate, 0, dlgsize);
 489
 490         // these values are arbitrary, they won't be used normally anyhow
 491         dlgTemplate->x  = 34;
 492         dlgTemplate->y  = 22;
 493         dlgTemplate->cx = 144;
 494         dlgTemplate->cy = 75;
 495
 496         // reuse the code in MSWGetStyle() but correct the results slightly for
 497         // the dialog
 498         dlgTemplate->style = MSWGetStyle(style, NULL);
 499
 500         // all dialogs are popups
 501         dlgTemplate->style |= WS_POPUP;
 502
 503         // force 3D-look if necessary, it looks impossibly ugly otherwise
 504         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 505             dlgTemplate->style |= DS_MODALFRAME;
 506
 507         ret = CreateDialog(dlgTemplate, title, pos, wxSize(w,h));
 508         free(dlgTemplate);
 509     }
 510     else // !dialog
 511     {
 512         ret = CreateFrame(title, pos, wxSize(w,h));
 513     }
 514
 515     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 516     {
 517         EnableCloseButton(false);
 518     }
 519
 520     // for some reason we need to manually send ourselves this message as
 521     // otherwise the mnemonics are always shown -- even if they're configured
 522     // to be hidden until "Alt" is pressed in the control panel
 523     //
 524     // this could indicate a bug somewhere else but for now this is the only
 525     // fix we have
 526     if ( ret )
 527     {
 528         SendMessage
 529         (
 530             GetHwnd(),
 531             WM_UPDATEUISTATE,
 532             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 533             0
 534         );
 535     }
 536
 537     return ret;
 538 }
 539
 540 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 541 {
 542     if ( wxModelessWindows.Find(this) )
 543         wxModelessWindows.DeleteObject(this);
 544
 545     // after destroying an owned window, Windows activates the next top level
 546     // window in Z order but it may be different from our owner (to reproduce
 547     // this simply Alt-TAB to another application and back before closing the
 548     // owned frame) whereas we always want to yield activation to our parent
 549     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 550     {
 551         wxWindow *parent = GetParent();
 552         if ( parent )
 553         {
 554             ::BringWindowToTop(GetHwndOf(parent));
 555         }
 556     }
 557 }
 558
 559 // ----------------------------------------------------------------------------
 560 // wxTopLevelWindowMSW showing
 561 // ----------------------------------------------------------------------------
 562
 563 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 564 {
 565     ::ShowWindow(GetHwnd(), nShowCmd);
 566
 567     m_iconized = nShowCmd == SW_MINIMIZE;
 568 }
 569
 570 bool wxTopLevelWindowMSW::Show(bool show)
 571 {
 572     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 573     if ( !wxWindowBase::Show(show) )
 574         return FALSE;
 575
 576     int nShowCmd;
 577     if ( show )
 578     {
 579         if ( m_maximizeOnShow )
 580         {
 581             // show and maximize
 582             nShowCmd = SW_MAXIMIZE;
 583
 584             m_maximizeOnShow = FALSE;
 585         }
 586         else // just show
 587         {
 588            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 589                nShowCmd = SW_SHOWNA;
 590            else
 591                nShowCmd = SW_SHOW;
 592         }
 593     }
 594     else // hide
 595     {
 596         nShowCmd = SW_HIDE;
 597     }
 598
 599     DoShowWindow(nShowCmd);
 600
 601     if ( show )
 602     {
 603         ::BringWindowToTop(GetHwnd());
 604
 605         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 606         event.SetEventObject( this );
 607         GetEventHandler()->ProcessEvent(event);
 608     }
 609     else // hide
 610     {
 611         // Try to highlight the correct window (the parent)
 612         if ( GetParent() )
 613         {
 614             HWND hWndParent = GetHwndOf(GetParent());
 615             if (hWndParent)
 616                 ::BringWindowToTop(hWndParent);
 617         }
 618     }
 619
 620     return TRUE;
 621 }
 622
 623 // ----------------------------------------------------------------------------
 624 // wxTopLevelWindowMSW maximize/minimize
 625 // ----------------------------------------------------------------------------
 626
 627 void wxTopLevelWindowMSW::Maximize(bool maximize)
 628 {
 629     if ( IsShown() )
 630     {
 631         // just maximize it directly
 632         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 633     }
 634     else // hidden
 635     {
 636         // we can't maximize the hidden frame because it shows it as well, so
 637         // just remember that we should do it later in this case
 638         m_maximizeOnShow = maximize;
 639     }
 640 }
 641
 642 bool wxTopLevelWindowMSW::IsMaximized() const
 643 {
 644 #ifdef __WXWINCE__
 645     return FALSE;
 646 #else
 647     return ::IsZoomed(GetHwnd()) != 0;
 648 #endif
 649 }
 650
 651 void wxTopLevelWindowMSW::Iconize(bool iconize)
 652 {
 653     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 654 }
 655
 656 bool wxTopLevelWindowMSW::IsIconized() const
 657 {
 658 #ifdef __WXWINCE__
 659     return FALSE;
 660 #else
 661     // also update the current state
 662     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 663
 664     return m_iconized;
 665 #endif
 666 }
 667
 668 void wxTopLevelWindowMSW::Restore()
 669 {
 670     DoShowWindow(SW_RESTORE);
 671 }
 672
 673 // ----------------------------------------------------------------------------
 674 // wxTopLevelWindowMSW fullscreen
 675 // ----------------------------------------------------------------------------
 676
 677 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 678 {
 679     if ( show == IsFullScreen() )
 680     {
 681         // nothing to do
 682         return TRUE;
 683     }
 684
 685     m_fsIsShowing = show;
 686
 687     if ( show )
 688     {
 689         m_fsStyle = style;
 690
 691         // zap the frame borders
 692
 693         // save the 'normal' window style
 694         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 695
 696         // save the old position, width & height, maximize state
 697         m_fsOldSize = GetRect();
 698         m_fsIsMaximized = IsMaximized();
 699
 700         // decide which window style flags to turn off
 701         LONG newStyle = m_fsOldWindowStyle;
 702         LONG offFlags = 0;
 703
 704         if (style & wxFULLSCREEN_NOBORDER)
 705         {
 706             offFlags |= WS_BORDER;
 707 #ifndef __WXWINCE__
 708             offFlags |= WS_THICKFRAME;
 709 #endif
 710         }
 711         if (style & wxFULLSCREEN_NOCAPTION)
 712             offFlags |= WS_CAPTION | WS_SYSMENU;
 713
 714         newStyle &= ~offFlags;
 715
 716         // change our window style to be compatible with full-screen mode
 717         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 718
 719         wxRect rect;
 720 #if wxUSE_DISPLAY
 721         // resize to the size of the display containing us
 722         int dpy = wxDisplay::GetFromWindow(this);
 723         if ( dpy != wxNOT_FOUND )
 724         {
 725             rect = wxDisplay(dpy).GetGeometry();
 726         }
 727         else // fall back to the main desktop
 728 #else // wxUSE_DISPLAY
 729         {
 730             // resize to the size of the desktop
 731             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 732 #ifdef __WXWINCE__
 733             // FIXME: size of the bottom menu (toolbar)
 734             // should be taken in account
 735             rect.height += rect.y;
 736             rect.y       = 0;
 737 #endif
 738         }
 739 #endif // wxUSE_DISPLAY
 740
 741         SetSize(rect);
 742
 743         // now flush the window style cache and actually go full-screen
 744         long flags = SWP_FRAMECHANGED;
 745
 746         // showing the frame full screen should also show it if it's still
 747         // hidden
 748         if ( !IsShown() )
 749         {
 750             // don't call wxWindow version to avoid flicker from calling
 751             // ::ShowWindow() -- we're going to show the window at the correct
 752             // location directly below -- but do call the wxWindowBase version
 753             // to sync the internal m_isShown flag
 754             wxWindowBase::Show();
 755
 756             flags |= SWP_SHOWWINDOW;
 757         }
 758
 759         SetWindowPos(GetHwnd(), HWND_TOP,
 760                      rect.x, rect.y, rect.width, rect.height,
 761                      flags);
 762
 763 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 764         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 765 #endif
 766
 767         // finally send an event allowing the window to relayout itself &c
 768         wxSizeEvent event(rect.GetSize(), GetId());
 769         GetEventHandler()->ProcessEvent(event);
 770     }
 771     else // stop showing full screen
 772     {
 773 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 774         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 775 #endif
 776         Maximize(m_fsIsMaximized);
 777         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 778         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 779             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 780     }
 781
 782     return TRUE;
 783 }
 784
 785 // ----------------------------------------------------------------------------
 786 // wxTopLevelWindowMSW misc
 787 // ----------------------------------------------------------------------------
 788
 789 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 790 {
 791     SetIcons( wxIconBundle( icon ) );
 792 }
 793
 794 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 795 {
 796     wxTopLevelWindowBase::SetIcons(icons);
 797
 798 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 799     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 800     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 801     {
 802         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 803                        (LPARAM)GetHiconOf(sml) );
 804     }
 805
 806     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 807     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 808     {
 809         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 810                        (LPARAM)GetHiconOf(big) );
 811     }
 812 #endif // __WIN95__
 813 }
 814
 815 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 816 {
 817 #if !defined(__WXMICROWIN__)
 818     // get system (a.k.a. window) menu
 819     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 820     if ( !hmenu )
 821     {
 822         // no system menu at all -- ok if we want to remove the close button
 823         // anyhow, but bad if we want to show it
 824         return !enable;
 825     }
 826
 827     // enabling/disabling the close item from it also automatically
 828     // disables/enables the close title bar button
 829     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 830                           MF_BYCOMMAND |
 831                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 832     {
 833         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 834
 835         return FALSE;
 836     }
 837
 838     // update appearance immediately
 839     if ( !::DrawMenuBar(GetHwnd()) )
 840     {
 841         wxLogLastError(_T("DrawMenuBar"));
 842     }
 843 #endif // !__WXMICROWIN__
 844
 845     return TRUE;
 846 }
 847
 848 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 849 {
 850 #ifdef __WXWINCE__
 851     return FALSE;
 852 #else
 853     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 854                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 855
 856     // The empty region signifies that the shape should be removed from the
 857     // window.
 858     if ( region.IsEmpty() )
 859     {
 860         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 861         {
 862             wxLogLastError(_T("SetWindowRgn"));
 863             return FALSE;
 864         }
 865         return TRUE;
 866     }
 867
 868     // Windows takes ownership of the region, so
 869     // we'll have to make a copy of the region to give to it.
 870     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 871     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 872     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 873     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 874     delete[] (char*) rgnData;
 875
 876     // SetWindowRgn expects the region to be in coordinants
 877     // relative to the window, not the client area.  Figure
 878     // out the offset, if any.
 879     RECT rect;
 880     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 881     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 882     ::GetClientRect(GetHwnd(), &rect);
 883     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 884     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 885
 886     // Now call the shape API with the new region.
 887     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 888     {
 889         wxLogLastError(_T("SetWindowRgn"));
 890         return FALSE;
 891     }
 892     return TRUE;
 893 #endif
 894 }
 895
 896 // ----------------------------------------------------------------------------
 897 // wxTopLevelWindow event handling
 898 // ----------------------------------------------------------------------------
 899
 900 // Default activation behaviour - set the focus for the first child
 901 // subwindow found.
 902 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 903 {
 904     if ( event.GetActive() )
 905     {
 906         // restore focus to the child which was last focused unless we already
 907         // have it
 908         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 909
 910         wxWindow *winFocus = FindFocus();
 911         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 912         {
 913             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 914                                                 : NULL;
 915             if ( !parent )
 916             {
 917                 parent = this;
 918             }
 919
 920             wxSetFocusToChild(parent, &m_winLastFocused);
 921         }
 922     }
 923     else // deactivating
 924     {
 925         // remember the last focused child if it is our child
 926         m_winLastFocused = FindFocus();
 927
 928         if ( m_winLastFocused )
 929         {
 930             // let it know that it doesn't have focus any more
 931             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 932
 933             // and don't remember it if it's a child from some other frame
 934             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 935             {
 936                 m_winLastFocused = NULL;
 937             }
 938         }
 939
 940         wxLogTrace(_T("focus"),
 941                    _T("wxTLW %08x deactivated, last focused: %08x."),
 942                    (int) m_hWnd,
 943                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 944                                            : NULL));
 945
 946         event.Skip();
 947     }
 948 }
 949
 950 // the DialogProc for all wxWindows dialogs
 951 LONG APIENTRY _EXPORT
 952 wxDlgProc(HWND WXUNUSED(hDlg),
 953           UINT message,
 954           WPARAM WXUNUSED(wParam),
 955           LPARAM WXUNUSED(lParam))
 956 {
 957     switch ( message )
 958     {
 959         case WM_INITDIALOG:
 960             // for this message, returning TRUE tells system to set focus to
 961             // the first control in the dialog box, but as we set the focus
 962             // ourselves, we return FALSE from here as well, so fall through
 963
 964         default:
 965             // for all the other ones, FALSE means that we didn't process the
 966             // message
 967             return FALSE;
 968     }
 969 }
 970
 971 // ============================================================================
 972 // wxTLWHiddenParentModule implementation
 973 // ============================================================================
 974
 975 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 976
 977 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 978
 979 bool wxTLWHiddenParentModule::OnInit()
 980 {
 981     ms_hwnd = NULL;
 982     ms_className = NULL;
 983
 984     return TRUE;
 985 }
 986
 987 void wxTLWHiddenParentModule::OnExit()
 988 {
 989     if ( ms_hwnd )
 990     {
 991         if ( !::DestroyWindow(ms_hwnd) )
 992         {
 993             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 994         }
 995
 996         ms_hwnd = NULL;
 997     }
 998
 999     if ( ms_className )
1000     {
1001         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1002         {
1003             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1004         }
1005
1006         ms_className = NULL;
1007     }
1008 }
1009
1010 /* static */
1011 HWND wxTLWHiddenParentModule::GetHWND()
1012 {
1013     if ( !ms_hwnd )
1014     {
1015         if ( !ms_className )
1016         {
1017             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1018
1019             WNDCLASS wndclass;
1020             wxZeroMemory(wndclass);
1021
1022             wndclass.lpfnWndProc   = DefWindowProc;
1023             wndclass.hInstance     = wxGetInstance();
1024             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1025
1026             if ( !::RegisterClass(&wndclass) )
1027             {
1028                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1029             }
1030             else
1031             {
1032                 ms_className = HIDDEN_PARENT_CLASS;
1033             }
1034         }
1035
1036         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1037                                  (HMENU)NULL, wxGetInstance(), NULL);
1038         if ( !ms_hwnd )
1039         {
1040             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1041         }
1042     }
1043
1044     return ms_hwnd;
1045 }
1046
1047