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   // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  49   #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  50     #include <aygshell.h>
  51   #endif
  52 #include "wx/msw/wince/missing.h"
  53 #endif
  54
  55 #include "wx/msw/missing.h"
  56 #include "wx/msw/winundef.h"
  57
  58 #include "wx/display.h"
  59
  60 #ifndef ICON_BIG
  61     #define ICON_BIG 1
  62 #endif
  63
  64 #ifndef ICON_SMALL
  65     #define ICON_SMALL 0
  66 #endif
  67
  68 // ----------------------------------------------------------------------------
  69 // stubs for missing functions under MicroWindows
  70 // ----------------------------------------------------------------------------
  71
  72 #ifdef __WXMICROWIN__
  73
  74 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  75 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  76
  77 #endif // __WXMICROWIN__
  78
  79 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  80 //     is not included by wxUniv build which does need wxDlgProc
  81 LONG APIENTRY _EXPORT
  82 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  83
  84 // ----------------------------------------------------------------------------
  85 // globals
  86 // ----------------------------------------------------------------------------
  87
  88 // the name of the default wxWidgets class
  89 #ifdef __WXWINCE__
  90 extern       wxChar *wxCanvasClassName;
  91 #else
  92 extern const wxChar *wxCanvasClassName;
  93 #endif
  94
  95 // ----------------------------------------------------------------------------
  96 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  97 // module to ensure that the window is always deleted)
  98 // ----------------------------------------------------------------------------
  99
 100 class wxTLWHiddenParentModule : public wxModule
 101 {
 102 public:
 103     // module init/finalize
 104     virtual bool OnInit();
 105     virtual void OnExit();
 106
 107     // get the hidden window (creates on demand)
 108     static HWND GetHWND();
 109
 110 private:
 111     // the HWND of the hidden parent
 112     static HWND ms_hwnd;
 113
 114     // the class used to create it
 115     static const wxChar *ms_className;
 116
 117     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 118 };
 119
 120 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 121
 122 // ============================================================================
 123 // wxTopLevelWindowMSW implementation
 124 // ============================================================================
 125
 126 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 127     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 128 END_EVENT_TABLE()
 129
 130 // ----------------------------------------------------------------------------
 131 // wxTopLevelWindowMSW creation
 132 // ----------------------------------------------------------------------------
 133
 134 void wxTopLevelWindowMSW::Init()
 135 {
 136     m_iconized =
 137     m_maximizeOnShow = FALSE;
 138
 139     // Data to save/restore when calling ShowFullScreen
 140     m_fsStyle = 0;
 141     m_fsOldWindowStyle = 0;
 142     m_fsIsMaximized = FALSE;
 143     m_fsIsShowing = FALSE;
 144
 145     m_winLastFocused = (wxWindow *)NULL;
 146 }
 147
 148 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 149 {
 150     // let the base class deal with the common styles but fix the ones which
 151     // don't make sense for us (we also deal with the borders ourselves)
 152     WXDWORD msflags = wxWindow::MSWGetStyle
 153                       (
 154                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 155                       ) & ~WS_CHILD & ~WS_VISIBLE;
 156
 157 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 158     msflags |= WS_VISIBLE;
 159 #endif
 160
 161     // first select the kind of window being created
 162     //
 163     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 164     // creates a window with both caption and border, hence we also test it
 165     // below in some other cases
 166     if ( style & wxFRAME_TOOL_WINDOW )
 167     {
 168         msflags |= WS_POPUP;
 169     }
 170     //else: WS_OVERLAPPED is 0 anyhow, so it is on by default
 171
 172 #ifndef __SMARTPHONE__
 173     // border and caption styles
 174     if ( style & wxRESIZE_BORDER )
 175         msflags |= WS_THICKFRAME;
 176     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 177         *exflags |= WS_EX_DLGMODALFRAME;
 178     else if ( !(style & wxBORDER_NONE) )
 179         msflags |= WS_BORDER;
 180     else
 181         msflags |= WS_POPUP;
 182 #endif
 183
 184     // normally we consider that all windows without caption must be popups,
 185     // but CE is an exception: there windows normally do not have the caption
 186     // but shouldn't be made popups as popups can't have menus and don't look
 187     // like normal windows anyhow
 188     if ( style & wxCAPTION )
 189         msflags |= WS_CAPTION;
 190 #ifndef __WXWINCE__
 191     else
 192         msflags |= WS_POPUP;
 193 #endif // !__WXWINCE__
 194
 195     // next translate the individual flags
 196     if ( style & wxMINIMIZE_BOX )
 197         msflags |= WS_MINIMIZEBOX;
 198     if ( style & wxMAXIMIZE_BOX )
 199         msflags |= WS_MAXIMIZEBOX;
 200     if ( style & wxSYSTEM_MENU )
 201         msflags |= WS_SYSMENU;
 202
 203     // NB: under CE these 2 styles are not supported currently, we should
 204     //     call Minimize()/Maximize() "manually" if we want to support them
 205     if ( style & wxMINIMIZE )
 206         msflags |= WS_MINIMIZE;
 207     if ( style & wxMAXIMIZE )
 208         msflags |= WS_MAXIMIZE;
 209
 210     // Keep this here because it saves recoding this function in wxTinyFrame
 211     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 212         msflags |= WS_CAPTION;
 213
 214     if ( exflags )
 215     {
 216         // there is no taskbar under CE, so omit all this
 217 #if !defined(__WXWINCE__)
 218         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 219         {
 220             if ( style & wxFRAME_TOOL_WINDOW )
 221             {
 222                 // create the palette-like window
 223                 *exflags |= WS_EX_TOOLWINDOW;
 224
 225                 // tool windows shouldn't appear on the taskbar (as documented)
 226                 style |= wxFRAME_NO_TASKBAR;
 227             }
 228
 229             // We have to solve 2 different problems here:
 230             //
 231             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 232             //    taskbar even if they don't have a parent
 233             //
 234             // 2. frames without this style should appear in the taskbar even
 235             //    if they're owned (Windows only puts non owned windows into
 236             //    the taskbar normally)
 237             //
 238             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 239             // first one is dealt with in our MSWGetParent() method
 240             // implementation
 241             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 242             {
 243                 // need to force the frame to appear in the taskbar
 244                 *exflags |= WS_EX_APPWINDOW;
 245             }
 246             //else: nothing to do [here]
 247         }
 248 #endif // !__WXWINCE__
 249
 250         if ( style & wxSTAY_ON_TOP )
 251             *exflags |= WS_EX_TOPMOST;
 252
 253         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 254             *exflags |= WS_EX_CONTEXTHELP;
 255     }
 256
 257     return msflags;
 258 }
 259
 260 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 261 {
 262     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 263     // parent HWND or it would be always on top of its parent which is not what
 264     // we usually want (in fact, we only want it for frames with the
 265     // wxFRAME_FLOAT_ON_PARENT flag)
 266     HWND hwndParent = NULL;
 267     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 268     {
 269         const wxWindow *parent = GetParent();
 270
 271         if ( !parent )
 272         {
 273             // this flag doesn't make sense then and will be ignored
 274             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 275         }
 276         else
 277         {
 278             hwndParent = GetHwndOf(parent);
 279         }
 280     }
 281     //else: don't float on parent, must not be owned
 282
 283     // now deal with the 2nd taskbar-related problem (see comments above in
 284     // MSWGetStyle())
 285     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 286     {
 287         // use hidden parent
 288         hwndParent = wxTLWHiddenParentModule::GetHWND();
 289     }
 290
 291     return (WXHWND)hwndParent;
 292 }
 293
 294 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 295                                        const wxString& title,
 296                                        const wxPoint& pos,
 297                                        const wxSize& size)
 298 {
 299 #ifdef __WXMICROWIN__
 300     // no dialogs support under MicroWin yet
 301     return CreateFrame(title, pos, size);
 302 #else // !__WXMICROWIN__
 303     wxWindow *parent = GetParent();
 304
 305     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 306     // app window as parent - this avoids creating modal dialogs without
 307     // parent
 308     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 309     {
 310         parent = wxTheApp->GetTopWindow();
 311
 312         if ( parent )
 313         {
 314             // don't use transient windows as parents, this is dangerous as it
 315             // can lead to a crash if the parent is destroyed before the child
 316             //
 317             // also don't use the window which is currently hidden as then the
 318             // dialog would be hidden as well
 319             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 320                     !parent->IsShown() )
 321             {
 322                 parent = NULL;
 323             }
 324         }
 325     }
 326
 327     m_hWnd = (WXHWND)::CreateDialogIndirect
 328                        (
 329                         wxGetInstance(),
 330                         (DLGTEMPLATE*)dlgTemplate,
 331                         parent ? GetHwndOf(parent) : NULL,
 332                         (DLGPROC)wxDlgProc
 333                        );
 334
 335     if ( !m_hWnd )
 336     {
 337         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 338
 339         wxLogSysError(wxT("Can't create dialog using memory template"));
 340
 341         return FALSE;
 342     }
 343
 344     WXDWORD exflags;
 345     (void)MSWGetCreateWindowFlags(&exflags);
 346
 347     if ( exflags )
 348     {
 349         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 350         ::SetWindowPos(GetHwnd(),
 351                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 352                        0, 0, 0, 0,
 353                        SWP_NOSIZE |
 354                        SWP_NOMOVE |
 355                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 356                        SWP_NOACTIVATE);
 357     }
 358
 359 #if defined(__WIN95__)
 360     // For some reason, the system menu is activated when we use the
 361     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 362     if ( exflags & WS_EX_CONTEXTHELP )
 363     {
 364         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 365         if ( winTop )
 366         {
 367             wxIcon icon = winTop->GetIcon();
 368             if ( icon.Ok() )
 369             {
 370                 ::SendMessage(GetHwnd(), WM_SETICON,
 371                               (WPARAM)TRUE,
 372                               (LPARAM)GetHiconOf(icon));
 373             }
 374         }
 375     }
 376 #endif // __WIN95__
 377
 378     // move the dialog to its initial position without forcing repainting
 379     int x, y, w, h;
 380     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 381
 382     if ( x == (int)CW_USEDEFAULT )
 383     {
 384         // centre it on the screen - what else can we do?
 385         wxSize sizeDpy = wxGetDisplaySize();
 386
 387         x = (sizeDpy.x - w) / 2;
 388         y = (sizeDpy.y - h) / 2;
 389     }
 390
 391 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 392     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 393     {
 394         wxLogLastError(wxT("MoveWindow"));
 395     }
 396 #endif
 397
 398     if ( !title.empty() )
 399     {
 400         ::SetWindowText(GetHwnd(), title);
 401     }
 402
 403     SubclassWin(m_hWnd);
 404
 405     return TRUE;
 406 #endif // __WXMICROWIN__/!__WXMICROWIN__
 407 }
 408
 409 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 410                                       const wxPoint& pos,
 411                                       const wxSize& size)
 412 {
 413     WXDWORD exflags;
 414     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 415
 416 #if (defined(_WIN32_WCE) && _WIN32_WCE < 400) || \
 417     defined(__POCKETPC__) || \
 418     defined(__SMARTPHONE__)
 419         // Always expand to fit the screen in PocketPC or SmartPhone
 420         wxSize sz(wxDefaultSize);
 421 #else // other (including normal desktop) Windows
 422         wxSize sz(size);
 423 #endif
 424
 425     return MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 426 }
 427
 428 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 429                                  wxWindowID id,
 430                                  const wxString& title,
 431                                  const wxPoint& pos,
 432                                  const wxSize& size,
 433                                  long style,
 434                                  const wxString& name)
 435 {
 436     bool ret wxDUMMY_INITIALIZE(false);
 437
 438     // init our fields
 439     Init();
 440
 441     wxSize sizeReal = size;
 442     if ( !sizeReal.IsFullySpecified() )
 443     {
 444         sizeReal.SetDefaults(GetDefaultSize());
 445     }
 446
 447     m_windowStyle = style;
 448
 449     SetName(name);
 450
 451     m_windowId = id == -1 ? NewControlId() : id;
 452
 453     wxTopLevelWindows.Append(this);
 454
 455     if ( parent )
 456         parent->AddChild(this);
 457
 458     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 459     {
 460         // we have different dialog templates to allows creation of dialogs
 461         // with & without captions under MSWindows, resizeable or not (but a
 462         // resizeable dialog always has caption - otherwise it would look too
 463         // strange)
 464
 465         // we need 3 additional WORDs for dialog menu, class and title (as we
 466         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 467         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 468         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 469         memset(dlgTemplate, 0, dlgsize);
 470
 471         // these values are arbitrary, they won't be used normally anyhow
 472         dlgTemplate->x  = 34;
 473         dlgTemplate->y  = 22;
 474         dlgTemplate->cx = 144;
 475         dlgTemplate->cy = 75;
 476
 477         // reuse the code in MSWGetStyle() but correct the results slightly for
 478         // the dialog
 479         dlgTemplate->style = MSWGetStyle(style, NULL);
 480
 481         // all dialogs are popups
 482         dlgTemplate->style |= WS_POPUP;
 483
 484         // force 3D-look if necessary, it looks impossibly ugly otherwise
 485         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 486             dlgTemplate->style |= DS_MODALFRAME;
 487
 488         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 489         free(dlgTemplate);
 490     }
 491     else // !dialog
 492     {
 493         ret = CreateFrame(title, pos, sizeReal);
 494     }
 495
 496     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 497     {
 498         EnableCloseButton(false);
 499     }
 500
 501     // for some reason we need to manually send ourselves this message as
 502     // otherwise the mnemonics are always shown -- even if they're configured
 503     // to be hidden until "Alt" is pressed in the control panel
 504     //
 505     // this could indicate a bug somewhere else but for now this is the only
 506     // fix we have
 507     if ( ret )
 508     {
 509         SendMessage
 510         (
 511             GetHwnd(),
 512             WM_UPDATEUISTATE,
 513             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 514             0
 515         );
 516     }
 517
 518         // Native look is full screen window on Smartphones and Standard SDK
 519 #if defined(__WXWINCE__)
 520     if ( style & wxMAXIMIZE )
 521         {
 522             this->Maximize();
 523         }
 524 #endif
 525
 526     return ret;
 527 }
 528
 529 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 530 {
 531     // after destroying an owned window, Windows activates the next top level
 532     // window in Z order but it may be different from our owner (to reproduce
 533     // this simply Alt-TAB to another application and back before closing the
 534     // owned frame) whereas we always want to yield activation to our parent
 535     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 536     {
 537         wxWindow *parent = GetParent();
 538         if ( parent )
 539         {
 540             ::BringWindowToTop(GetHwndOf(parent));
 541         }
 542     }
 543 }
 544
 545 // ----------------------------------------------------------------------------
 546 // wxTopLevelWindowMSW showing
 547 // ----------------------------------------------------------------------------
 548
 549 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 550 {
 551     ::ShowWindow(GetHwnd(), nShowCmd);
 552
 553     m_iconized = nShowCmd == SW_MINIMIZE;
 554 }
 555
 556 bool wxTopLevelWindowMSW::Show(bool show)
 557 {
 558     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 559     if ( !wxWindowBase::Show(show) )
 560         return FALSE;
 561
 562     int nShowCmd;
 563     if ( show )
 564     {
 565         if ( m_maximizeOnShow )
 566         {
 567             // show and maximize
 568             nShowCmd = SW_MAXIMIZE;
 569
 570                         // This is necessary, or no window appears
 571 #ifdef __WINCE_STANDARDSDK__
 572                         DoShowWindow(SW_SHOW);
 573 #endif
 574
 575             m_maximizeOnShow = FALSE;
 576         }
 577         else // just show
 578         {
 579            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 580                nShowCmd = SW_SHOWNA;
 581            else
 582                nShowCmd = SW_SHOW;
 583         }
 584     }
 585     else // hide
 586     {
 587         nShowCmd = SW_HIDE;
 588     }
 589
 590     DoShowWindow(nShowCmd);
 591
 592 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 593     // Addornments have to be added when the frame is the correct size
 594     wxFrame* frame = wxDynamicCast(this, wxFrame);
 595     if (frame && frame->GetMenuBar())
 596         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 597 #endif
 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 #ifndef __WXWINCE__
 836     // update appearance immediately
 837     if ( !::DrawMenuBar(GetHwnd()) )
 838     {
 839         wxLogLastError(_T("DrawMenuBar"));
 840     }
 841 #endif
 842 #endif // !__WXMICROWIN__
 843
 844     return TRUE;
 845 }
 846
 847 #ifndef __WXWINCE__
 848
 849 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 850 {
 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 }
 892
 893 #endif // !__WXWINCE__
 894
 895 // ----------------------------------------------------------------------------
 896 // wxTopLevelWindow event handling
 897 // ----------------------------------------------------------------------------
 898
 899 // Default activation behaviour - set the focus for the first child
 900 // subwindow found.
 901 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 902 {
 903     if ( event.GetActive() )
 904     {
 905         // restore focus to the child which was last focused unless we already
 906         // have it
 907         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 908
 909         wxWindow *winFocus = FindFocus();
 910         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 911         {
 912             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 913                                                 : NULL;
 914             if ( !parent )
 915             {
 916                 parent = this;
 917             }
 918
 919             wxSetFocusToChild(parent, &m_winLastFocused);
 920         }
 921     }
 922     else // deactivating
 923     {
 924         // remember the last focused child if it is our child
 925         m_winLastFocused = FindFocus();
 926
 927         if ( m_winLastFocused )
 928         {
 929             // let it know that it doesn't have focus any more
 930             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 931
 932             // and don't remember it if it's a child from some other frame
 933             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 934             {
 935                 m_winLastFocused = NULL;
 936             }
 937         }
 938
 939         wxLogTrace(_T("focus"),
 940                    _T("wxTLW %08x deactivated, last focused: %08x."),
 941                    (int) m_hWnd,
 942                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 943                                            : NULL));
 944
 945         event.Skip();
 946     }
 947 }
 948
 949 // the DialogProc for all wxWidgets dialogs
 950 LONG APIENTRY _EXPORT
 951 wxDlgProc(HWND hDlg,
 952           UINT message,
 953           WPARAM WXUNUSED(wParam),
 954           LPARAM WXUNUSED(lParam))
 955 {
 956     if ( message == WM_INITDIALOG )
 957     {
 958         // under CE, add a "Ok" button in the dialog title bar and make it full
 959         // screen
 960         //
 961         // VZ: we should probably allow for overriding this, e.g. by including
 962         //     MAXIMIZED flag in the dialog style by default and doing this
 963         //     only if it is present...
 964
 965         // Standard SDK doesn't have aygshell.dll: see
 966         // include/wx/msw/wince/libraries.h
 967 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__)
 968         SHINITDLGINFO shidi;
 969         shidi.dwMask = SHIDIM_FLAGS;
 970         shidi.dwFlags = SHIDIF_DONEBUTTON |
 971                         SHIDIF_SIZEDLGFULLSCREEN;
 972         shidi.hDlg = hDlg;
 973         SHInitDialog( &shidi );
 974 #else // no SHInitDialog()
 975         wxUnusedVar(hDlg);
 976 #endif
 977     }
 978
 979     // for almost all messages, returning FALSE means that we didn't process
 980     // the message
 981     //
 982     // for WM_INITDIALOG, returning TRUE tells system to set focus to
 983     // the first control in the dialog box, but as we set the focus
 984     // ourselves, we return FALSE for it as well
 985     return FALSE;
 986 }
 987
 988 // ============================================================================
 989 // wxTLWHiddenParentModule implementation
 990 // ============================================================================
 991
 992 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 993
 994 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 995
 996 bool wxTLWHiddenParentModule::OnInit()
 997 {
 998     ms_hwnd = NULL;
 999     ms_className = NULL;
1000
1001     return TRUE;
1002 }
1003
1004 void wxTLWHiddenParentModule::OnExit()
1005 {
1006     if ( ms_hwnd )
1007     {
1008         if ( !::DestroyWindow(ms_hwnd) )
1009         {
1010             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1011         }
1012
1013         ms_hwnd = NULL;
1014     }
1015
1016     if ( ms_className )
1017     {
1018         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1019         {
1020             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1021         }
1022
1023         ms_className = NULL;
1024     }
1025 }
1026
1027 /* static */
1028 HWND wxTLWHiddenParentModule::GetHWND()
1029 {
1030     if ( !ms_hwnd )
1031     {
1032         if ( !ms_className )
1033         {
1034             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1035
1036             WNDCLASS wndclass;
1037             wxZeroMemory(wndclass);
1038
1039             wndclass.lpfnWndProc   = DefWindowProc;
1040             wndclass.hInstance     = wxGetInstance();
1041             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1042
1043             if ( !::RegisterClass(&wndclass) )
1044             {
1045                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1046             }
1047             else
1048             {
1049                 ms_className = HIDDEN_PARENT_CLASS;
1050             }
1051         }
1052
1053         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1054                                  (HMENU)NULL, wxGetInstance(), NULL);
1055         if ( !ms_hwnd )
1056         {
1057             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1058         }
1059     }
1060
1061     return ms_hwnd;
1062 }
1063
1064