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 #include "wx/dynlib.h"
  44
  45 #include "wx/msw/private.h"
  46 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
  47   #include <ole2.h>
  48   #include <shellapi.h>
  49   // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  50   #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  51     #include <aygshell.h>
  52   #endif
  53 #include "wx/msw/wince/missing.h"
  54 #endif
  55
  56 #include "wx/msw/missing.h"
  57 #include "wx/msw/winundef.h"
  58
  59 #include "wx/display.h"
  60
  61 #ifndef ICON_BIG
  62     #define ICON_BIG 1
  63 #endif
  64
  65 #ifndef ICON_SMALL
  66     #define ICON_SMALL 0
  67 #endif
  68
  69 // ----------------------------------------------------------------------------
  70 // stubs for missing functions under MicroWindows
  71 // ----------------------------------------------------------------------------
  72
  73 #ifdef __WXMICROWIN__
  74
  75 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
  76 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
  77
  78 #endif // __WXMICROWIN__
  79
  80 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  81 //     is not included by wxUniv build which does need wxDlgProc
  82 LONG APIENTRY _EXPORT
  83 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  84
  85 // ----------------------------------------------------------------------------
  86 // globals
  87 // ----------------------------------------------------------------------------
  88
  89 // the name of the default wxWidgets class
  90 #ifdef __WXWINCE__
  91 extern       wxChar *wxCanvasClassName;
  92 #else
  93 extern const wxChar *wxCanvasClassName;
  94 #endif
  95
  96 // ----------------------------------------------------------------------------
  97 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  98 // module to ensure that the window is always deleted)
  99 // ----------------------------------------------------------------------------
 100
 101 class wxTLWHiddenParentModule : public wxModule
 102 {
 103 public:
 104     // module init/finalize
 105     virtual bool OnInit();
 106     virtual void OnExit();
 107
 108     // get the hidden window (creates on demand)
 109     static HWND GetHWND();
 110
 111 private:
 112     // the HWND of the hidden parent
 113     static HWND ms_hwnd;
 114
 115     // the class used to create it
 116     static const wxChar *ms_className;
 117
 118     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 119 };
 120
 121 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 122
 123 // ============================================================================
 124 // wxTopLevelWindowMSW implementation
 125 // ============================================================================
 126
 127 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 128     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 129 END_EVENT_TABLE()
 130
 131 // ----------------------------------------------------------------------------
 132 // wxTopLevelWindowMSW creation
 133 // ----------------------------------------------------------------------------
 134
 135 void wxTopLevelWindowMSW::Init()
 136 {
 137     m_iconized =
 138     m_maximizeOnShow = false;
 139
 140     // Data to save/restore when calling ShowFullScreen
 141     m_fsStyle = 0;
 142     m_fsOldWindowStyle = 0;
 143     m_fsIsMaximized = false;
 144     m_fsIsShowing = false;
 145
 146     m_winLastFocused = (wxWindow *)NULL;
 147
 148 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 149     m_MenuBarHWND = 0;
 150 #endif
 151 }
 152
 153 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 154 {
 155     // let the base class deal with the common styles but fix the ones which
 156     // don't make sense for us (we also deal with the borders ourselves)
 157     WXDWORD msflags = wxWindow::MSWGetStyle
 158                       (
 159                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 160                       ) & ~WS_CHILD & ~WS_VISIBLE;
 161
 162     // For some reason, WS_VISIBLE needs to be defined on creation for
 163     // SmartPhone 2003. The title can fail to be displayed otherwise.
 164 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
 165     msflags |= WS_VISIBLE;
 166     ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
 167 #endif
 168
 169     // first select the kind of window being created
 170     //
 171     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 172     // creates a window with both caption and border, hence we need to use
 173     // WS_POPUP in a few cases just to avoid having caption/border which we
 174     // don't want
 175
 176 #if !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
 177     // border and caption styles
 178     if ( style & wxRESIZE_BORDER )
 179         msflags |= WS_THICKFRAME;
 180     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 181         *exflags |= WS_EX_DLGMODALFRAME;
 182     else if ( !(style & wxBORDER_NONE) )
 183         msflags |= WS_BORDER;
 184 #ifndef __POCKETPC__
 185     else
 186         msflags |= WS_POPUP;
 187 #endif
 188 #endif
 189
 190     // normally we consider that all windows without a caption must be popups,
 191     // but CE is an exception: there windows normally do not have the caption
 192     // but shouldn't be made popups as popups can't have menus and don't look
 193     // like normal windows anyhow
 194
 195     // TODO: Smartphone appears to like wxCAPTION, but we should check that
 196     // we need it.
 197 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
 198     if ( style & wxCAPTION )
 199         msflags |= WS_CAPTION;
 200 #ifndef __WXWINCE__
 201     else
 202         msflags |= WS_POPUP;
 203 #endif // !__WXWINCE__
 204 #endif
 205
 206     // next translate the individual flags
 207     if ( style & wxMINIMIZE_BOX )
 208         msflags |= WS_MINIMIZEBOX;
 209     if ( style & wxMAXIMIZE_BOX )
 210         msflags |= WS_MAXIMIZEBOX;
 211
 212 #ifndef __WXWINCE__
 213     if ( style & wxSYSTEM_MENU )
 214         msflags |= WS_SYSMENU;
 215 #endif
 216
 217     // NB: under CE these 2 styles are not supported currently, we should
 218     //     call Minimize()/Maximize() "manually" if we want to support them
 219     if ( style & wxMINIMIZE )
 220         msflags |= WS_MINIMIZE;
 221
 222 #if !defined(__POCKETPC__)
 223     if ( style & wxMAXIMIZE )
 224         msflags |= WS_MAXIMIZE;
 225 #endif
 226
 227     // Keep this here because it saves recoding this function in wxTinyFrame
 228     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 229         msflags |= WS_CAPTION;
 230
 231     if ( exflags )
 232     {
 233         // there is no taskbar under CE, so omit all this
 234 #if !defined(__WXWINCE__)
 235         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 236         {
 237             if ( style & wxFRAME_TOOL_WINDOW )
 238             {
 239                 // create the palette-like window
 240                 *exflags |= WS_EX_TOOLWINDOW;
 241
 242                 // tool windows shouldn't appear on the taskbar (as documented)
 243                 style |= wxFRAME_NO_TASKBAR;
 244             }
 245
 246             // We have to solve 2 different problems here:
 247             //
 248             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 249             //    taskbar even if they don't have a parent
 250             //
 251             // 2. frames without this style should appear in the taskbar even
 252             //    if they're owned (Windows only puts non owned windows into
 253             //    the taskbar normally)
 254             //
 255             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 256             // first one is dealt with in our MSWGetParent() method
 257             // implementation
 258             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 259             {
 260                 // need to force the frame to appear in the taskbar
 261                 *exflags |= WS_EX_APPWINDOW;
 262             }
 263             //else: nothing to do [here]
 264         }
 265
 266         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 267             *exflags |= WS_EX_CONTEXTHELP;
 268 #endif // !__WXWINCE__
 269
 270         if ( style & wxSTAY_ON_TOP )
 271             *exflags |= WS_EX_TOPMOST;
 272     }
 273
 274     return msflags;
 275 }
 276
 277 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 278 {
 279     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 280     // parent HWND or it would be always on top of its parent which is not what
 281     // we usually want (in fact, we only want it for frames with the
 282     // wxFRAME_FLOAT_ON_PARENT flag)
 283     HWND hwndParent = NULL;
 284     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 285     {
 286         const wxWindow *parent = GetParent();
 287
 288         if ( !parent )
 289         {
 290             // this flag doesn't make sense then and will be ignored
 291             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 292         }
 293         else
 294         {
 295             hwndParent = GetHwndOf(parent);
 296         }
 297     }
 298     //else: don't float on parent, must not be owned
 299
 300     // now deal with the 2nd taskbar-related problem (see comments above in
 301     // MSWGetStyle())
 302     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 303     {
 304         // use hidden parent
 305         hwndParent = wxTLWHiddenParentModule::GetHWND();
 306     }
 307
 308     return (WXHWND)hwndParent;
 309 }
 310
 311 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 312                                        const wxString& title,
 313                                        const wxPoint& pos,
 314                                        const wxSize& size)
 315 {
 316 #ifdef __WXMICROWIN__
 317     // no dialogs support under MicroWin yet
 318     return CreateFrame(title, pos, size);
 319 #else // !__WXMICROWIN__
 320     wxWindow *parent = GetParent();
 321
 322     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 323     // app window as parent - this avoids creating modal dialogs without
 324     // parent
 325     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 326     {
 327         parent = wxTheApp->GetTopWindow();
 328
 329         if ( parent )
 330         {
 331             // don't use transient windows as parents, this is dangerous as it
 332             // can lead to a crash if the parent is destroyed before the child
 333             //
 334             // also don't use the window which is currently hidden as then the
 335             // dialog would be hidden as well
 336             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 337                     !parent->IsShown() )
 338             {
 339                 parent = NULL;
 340             }
 341         }
 342     }
 343
 344     m_hWnd = (WXHWND)::CreateDialogIndirect
 345                        (
 346                         wxGetInstance(),
 347                         (DLGTEMPLATE*)dlgTemplate,
 348                         parent ? GetHwndOf(parent) : NULL,
 349                         (DLGPROC)wxDlgProc
 350                        );
 351
 352     if ( !m_hWnd )
 353     {
 354         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 355
 356         wxLogSysError(wxT("Can't create dialog using memory template"));
 357
 358         return false;
 359     }
 360
 361     WXDWORD exflags;
 362     (void)MSWGetCreateWindowFlags(&exflags);
 363
 364     if ( exflags )
 365     {
 366         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 367         ::SetWindowPos(GetHwnd(),
 368                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 369                        0, 0, 0, 0,
 370                        SWP_NOSIZE |
 371                        SWP_NOMOVE |
 372                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 373                        SWP_NOACTIVATE);
 374     }
 375
 376 #if !defined(__WXWINCE__)
 377     // For some reason, the system menu is activated when we use the
 378     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 379     if ( exflags & WS_EX_CONTEXTHELP )
 380     {
 381         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 382         if ( winTop )
 383         {
 384             wxIcon icon = winTop->GetIcon();
 385             if ( icon.Ok() )
 386             {
 387                 ::SendMessage(GetHwnd(), WM_SETICON,
 388                               (WPARAM)TRUE,
 389                               (LPARAM)GetHiconOf(icon));
 390             }
 391         }
 392     }
 393 #endif
 394
 395     // move the dialog to its initial position without forcing repainting
 396     int x, y, w, h;
 397     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 398
 399     if ( x == (int)CW_USEDEFAULT )
 400     {
 401         // centre it on the screen - what else can we do?
 402         wxSize sizeDpy = wxGetDisplaySize();
 403
 404         x = (sizeDpy.x - w) / 2;
 405         y = (sizeDpy.y - h) / 2;
 406     }
 407
 408 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 409     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 410     {
 411         wxLogLastError(wxT("MoveWindow"));
 412     }
 413 #endif
 414
 415     if ( !title.empty() )
 416     {
 417         ::SetWindowText(GetHwnd(), title);
 418     }
 419
 420     SubclassWin(m_hWnd);
 421
 422 #ifdef __SMARTPHONE__
 423     // Work around title non-display glitch
 424     Show(false);
 425 #endif
 426
 427     return true;
 428 #endif // __WXMICROWIN__/!__WXMICROWIN__
 429 }
 430
 431 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 432                                       const wxPoint& pos,
 433                                       const wxSize& size)
 434 {
 435     WXDWORD exflags;
 436     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 437
 438 #if !defined(__HANDHELDPC__) && ((defined(_WIN32_WCE) && _WIN32_WCE < 400) || \
 439     defined(__POCKETPC__) || \
 440     defined(__SMARTPHONE__))
 441     // Always expand to fit the screen in PocketPC or SmartPhone
 442     wxSize sz(wxDefaultSize);
 443     wxUnusedVar(size);
 444 #else // other (including normal desktop) Windows
 445     wxSize sz(size);
 446 #endif
 447
 448     bool result = MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 449
 450     return result;
 451 }
 452
 453 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 454                                  wxWindowID id,
 455                                  const wxString& title,
 456                                  const wxPoint& pos,
 457                                  const wxSize& size,
 458                                  long style,
 459                                  const wxString& name)
 460 {
 461     bool ret wxDUMMY_INITIALIZE(false);
 462
 463     // init our fields
 464     Init();
 465
 466     wxSize sizeReal = size;
 467     if ( !sizeReal.IsFullySpecified() )
 468     {
 469         sizeReal.SetDefaults(GetDefaultSize());
 470     }
 471
 472     m_windowStyle = style;
 473
 474     SetName(name);
 475
 476     m_windowId = id == wxID_ANY ? NewControlId() : id;
 477
 478     wxTopLevelWindows.Append(this);
 479
 480     if ( parent )
 481         parent->AddChild(this);
 482
 483     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 484     {
 485         // we have different dialog templates to allows creation of dialogs
 486         // with & without captions under MSWindows, resizeable or not (but a
 487         // resizeable dialog always has caption - otherwise it would look too
 488         // strange)
 489
 490         // we need 3 additional WORDs for dialog menu, class and title (as we
 491         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 492         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 493         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 494         memset(dlgTemplate, 0, dlgsize);
 495
 496         // these values are arbitrary, they won't be used normally anyhow
 497         dlgTemplate->x  = 34;
 498         dlgTemplate->y  = 22;
 499         dlgTemplate->cx = 144;
 500         dlgTemplate->cy = 75;
 501
 502         // reuse the code in MSWGetStyle() but correct the results slightly for
 503         // the dialog
 504         dlgTemplate->style = MSWGetStyle(style, NULL);
 505
 506         // all dialogs are popups
 507         dlgTemplate->style |= WS_POPUP;
 508
 509 #ifndef __WXWINCE__
 510         // force 3D-look if necessary, it looks impossibly ugly otherwise
 511         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 512             dlgTemplate->style |= DS_MODALFRAME;
 513 #endif
 514
 515         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 516         free(dlgTemplate);
 517     }
 518     else // !dialog
 519     {
 520         ret = CreateFrame(title, pos, sizeReal);
 521     }
 522
 523 #ifndef __WXWINCE__
 524     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 525     {
 526         EnableCloseButton(false);
 527     }
 528 #endif
 529
 530     // for some reason we need to manually send ourselves this message as
 531     // otherwise the mnemonics are always shown -- even if they're configured
 532     // to be hidden until "Alt" is pressed in the control panel
 533     //
 534     // this could indicate a bug somewhere else but for now this is the only
 535     // fix we have
 536     if ( ret )
 537     {
 538         ::SendMessage
 539         (
 540             GetHwnd(),
 541             WM_UPDATEUISTATE,
 542             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 543             0
 544         );
 545     }
 546
 547     // Note: if we include PocketPC in this test, dialogs can fail to show up,
 548     // for example the text entry dialog in the dialogs sample. Problem with Maximise()?
 549 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
 550     if ( style & wxMAXIMIZE )
 551     {
 552         this->Maximize();
 553     }
 554 #endif
 555
 556 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 557     SetRightMenu(); // to nothing for initialization
 558 #endif
 559
 560     return ret;
 561 }
 562
 563 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 564 {
 565     // after destroying an owned window, Windows activates the next top level
 566     // window in Z order but it may be different from our owner (to reproduce
 567     // this simply Alt-TAB to another application and back before closing the
 568     // owned frame) whereas we always want to yield activation to our parent
 569     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 570     {
 571         wxWindow *parent = GetParent();
 572         if ( parent )
 573         {
 574             ::BringWindowToTop(GetHwndOf(parent));
 575         }
 576     }
 577 }
 578
 579 // ----------------------------------------------------------------------------
 580 // wxTopLevelWindowMSW showing
 581 // ----------------------------------------------------------------------------
 582
 583 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 584 {
 585     ::ShowWindow(GetHwnd(), nShowCmd);
 586
 587     m_iconized = nShowCmd == SW_MINIMIZE;
 588 }
 589
 590 bool wxTopLevelWindowMSW::Show(bool show)
 591 {
 592     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 593     if ( !wxWindowBase::Show(show) )
 594         return false;
 595
 596     int nShowCmd;
 597     if ( show )
 598     {
 599         if ( m_maximizeOnShow )
 600         {
 601             // show and maximize
 602             nShowCmd = SW_MAXIMIZE;
 603
 604             // This is necessary, or no window appears
 605 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
 606             DoShowWindow(SW_SHOW);
 607 #endif
 608
 609             m_maximizeOnShow = false;
 610         }
 611         else // just show
 612         {
 613            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 614                nShowCmd = SW_SHOWNA;
 615            else
 616                nShowCmd = SW_SHOW;
 617         }
 618     }
 619     else // hide
 620     {
 621         nShowCmd = SW_HIDE;
 622     }
 623
 624     DoShowWindow(nShowCmd);
 625
 626 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 627     // Addornments have to be added when the frame is the correct size
 628     wxFrame* frame = wxDynamicCast(this, wxFrame);
 629     if (frame && frame->GetMenuBar())
 630         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 631 #endif
 632
 633     if ( show )
 634     {
 635         ::BringWindowToTop(GetHwnd());
 636
 637         wxActivateEvent event(wxEVT_ACTIVATE, true, m_windowId);
 638         event.SetEventObject( this );
 639         GetEventHandler()->ProcessEvent(event);
 640     }
 641     else // hide
 642     {
 643         // Try to highlight the correct window (the parent)
 644         if ( GetParent() )
 645         {
 646             HWND hWndParent = GetHwndOf(GetParent());
 647             if (hWndParent)
 648                 ::BringWindowToTop(hWndParent);
 649         }
 650     }
 651
 652     return true;
 653 }
 654
 655 // ----------------------------------------------------------------------------
 656 // wxTopLevelWindowMSW maximize/minimize
 657 // ----------------------------------------------------------------------------
 658
 659 void wxTopLevelWindowMSW::Maximize(bool maximize)
 660 {
 661     if ( IsShown() )
 662     {
 663         // just maximize it directly
 664         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 665     }
 666     else // hidden
 667     {
 668         // we can't maximize the hidden frame because it shows it as well, so
 669         // just remember that we should do it later in this case
 670         m_maximizeOnShow = maximize;
 671
 672         // after calling Maximize() the client code expects to get the frame
 673         // "real" size and doesn't want to know that, because of implementation
 674         // details, the frame isn't really maximized yet but will be only once
 675         // it's shown, so return our size as it will be then in this case
 676
 677         // we don't know which display we're on yet so use the default one
 678         SetSize(wxGetClientDisplayRect().GetSize());
 679     }
 680 }
 681
 682 bool wxTopLevelWindowMSW::IsMaximized() const
 683 {
 684 #ifdef __WXWINCE__
 685     return false;
 686 #else
 687     return m_maximizeOnShow || ::IsZoomed(GetHwnd()) != 0;
 688 #endif
 689 }
 690
 691 void wxTopLevelWindowMSW::Iconize(bool iconize)
 692 {
 693     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 694 }
 695
 696 bool wxTopLevelWindowMSW::IsIconized() const
 697 {
 698 #ifdef __WXWINCE__
 699     return false;
 700 #else
 701     // also update the current state
 702     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 703
 704     return m_iconized;
 705 #endif
 706 }
 707
 708 void wxTopLevelWindowMSW::Restore()
 709 {
 710     DoShowWindow(SW_RESTORE);
 711 }
 712
 713 // ----------------------------------------------------------------------------
 714 // wxTopLevelWindowMSW fullscreen
 715 // ----------------------------------------------------------------------------
 716
 717 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 718 {
 719     if ( show == IsFullScreen() )
 720     {
 721         // nothing to do
 722         return true;
 723     }
 724
 725     m_fsIsShowing = show;
 726
 727     if ( show )
 728     {
 729         m_fsStyle = style;
 730
 731         // zap the frame borders
 732
 733         // save the 'normal' window style
 734         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 735
 736         // save the old position, width & height, maximize state
 737         m_fsOldSize = GetRect();
 738         m_fsIsMaximized = IsMaximized();
 739
 740         // decide which window style flags to turn off
 741         LONG newStyle = m_fsOldWindowStyle;
 742         LONG offFlags = 0;
 743
 744         if (style & wxFULLSCREEN_NOBORDER)
 745         {
 746             offFlags |= WS_BORDER;
 747 #ifndef __WXWINCE__
 748             offFlags |= WS_THICKFRAME;
 749 #endif
 750         }
 751         if (style & wxFULLSCREEN_NOCAPTION)
 752             offFlags |= WS_CAPTION | WS_SYSMENU;
 753
 754         newStyle &= ~offFlags;
 755
 756         // change our window style to be compatible with full-screen mode
 757         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 758
 759         wxRect rect;
 760 #if wxUSE_DISPLAY
 761         // resize to the size of the display containing us
 762         int dpy = wxDisplay::GetFromWindow(this);
 763         if ( dpy != wxNOT_FOUND )
 764         {
 765             rect = wxDisplay(dpy).GetGeometry();
 766         }
 767         else // fall back to the main desktop
 768 #endif // wxUSE_DISPLAY
 769         {
 770             // resize to the size of the desktop
 771             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 772 #ifdef __WXWINCE__
 773             // FIXME: size of the bottom menu (toolbar)
 774             // should be taken in account
 775             rect.height += rect.y;
 776             rect.y       = 0;
 777 #endif
 778         }
 779
 780         SetSize(rect);
 781
 782         // now flush the window style cache and actually go full-screen
 783         long flags = SWP_FRAMECHANGED;
 784
 785         // showing the frame full screen should also show it if it's still
 786         // hidden
 787         if ( !IsShown() )
 788         {
 789             // don't call wxWindow version to avoid flicker from calling
 790             // ::ShowWindow() -- we're going to show the window at the correct
 791             // location directly below -- but do call the wxWindowBase version
 792             // to sync the internal m_isShown flag
 793             wxWindowBase::Show();
 794
 795             flags |= SWP_SHOWWINDOW;
 796         }
 797
 798         SetWindowPos(GetHwnd(), HWND_TOP,
 799                      rect.x, rect.y, rect.width, rect.height,
 800                      flags);
 801
 802 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 803         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 804 #endif
 805
 806         // finally send an event allowing the window to relayout itself &c
 807         wxSizeEvent event(rect.GetSize(), GetId());
 808         GetEventHandler()->ProcessEvent(event);
 809     }
 810     else // stop showing full screen
 811     {
 812 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 813         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 814 #endif
 815         Maximize(m_fsIsMaximized);
 816         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 817         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 818             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 819     }
 820
 821     return true;
 822 }
 823
 824 // ----------------------------------------------------------------------------
 825 // wxTopLevelWindowMSW misc
 826 // ----------------------------------------------------------------------------
 827
 828 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 829 {
 830     SetIcons( wxIconBundle( icon ) );
 831 }
 832
 833 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 834 {
 835     wxTopLevelWindowBase::SetIcons(icons);
 836
 837 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 838     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 839     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 840     {
 841         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 842                        (LPARAM)GetHiconOf(sml) );
 843     }
 844
 845     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 846     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 847     {
 848         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 849                        (LPARAM)GetHiconOf(big) );
 850     }
 851 #endif // __WIN95__
 852 }
 853
 854 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 855 {
 856 #if !defined(__WXMICROWIN__)
 857     // get system (a.k.a. window) menu
 858     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 859     if ( !hmenu )
 860     {
 861         // no system menu at all -- ok if we want to remove the close button
 862         // anyhow, but bad if we want to show it
 863         return !enable;
 864     }
 865
 866     // enabling/disabling the close item from it also automatically
 867     // disables/enables the close title bar button
 868     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 869                           MF_BYCOMMAND |
 870                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 871     {
 872         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 873
 874         return false;
 875     }
 876 #ifndef __WXWINCE__
 877     // update appearance immediately
 878     if ( !::DrawMenuBar(GetHwnd()) )
 879     {
 880         wxLogLastError(_T("DrawMenuBar"));
 881     }
 882 #endif
 883 #endif // !__WXMICROWIN__
 884
 885     return true;
 886 }
 887
 888 #ifndef __WXWINCE__
 889
 890 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 891 {
 892     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
 893                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 894
 895     // The empty region signifies that the shape should be removed from the
 896     // window.
 897     if ( region.IsEmpty() )
 898     {
 899         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 900         {
 901             wxLogLastError(_T("SetWindowRgn"));
 902             return false;
 903         }
 904         return true;
 905     }
 906
 907     // Windows takes ownership of the region, so
 908     // we'll have to make a copy of the region to give to it.
 909     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 910     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 911     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 912     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 913     delete[] (char*) rgnData;
 914
 915     // SetWindowRgn expects the region to be in coordinants
 916     // relative to the window, not the client area.  Figure
 917     // out the offset, if any.
 918     RECT rect;
 919     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 920     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 921     ::GetClientRect(GetHwnd(), &rect);
 922     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 923     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 924
 925     // Now call the shape API with the new region.
 926     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 927     {
 928         wxLogLastError(_T("SetWindowRgn"));
 929         return false;
 930     }
 931     return true;
 932 }
 933
 934 #endif // !__WXWINCE__
 935
 936 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
 937 {
 938     // check if we can use FlashWindowEx(): unfortunately a simple test for
 939     // FLASHW_STOP doesn't work because MSVC6 headers do #define it but don't
 940     // provide FlashWindowEx() declaration, so try to detect whether we have
 941     // real headers for WINVER 0x0500 by checking for existence of a symbol not
 942     // declated in MSVC6 header
 943 #if defined(FLASHW_STOP) && defined(VK_XBUTTON1)
 944     // available in the headers, check if it is supported by the system
 945     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
 946     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
 947     if ( !s_pfnFlashWindowEx )
 948     {
 949         wxDynamicLibrary dllUser32(_T("user32.dll"));
 950         s_pfnFlashWindowEx = (FlashWindowEx_t)
 951                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
 952
 953         // we can safely unload user32.dll here, it's going to remain loaded as
 954         // long as the program is running anyhow
 955     }
 956
 957     if ( s_pfnFlashWindowEx )
 958     {
 959         WinStruct<FLASHWINFO> fwi;
 960         fwi.hwnd = GetHwnd();
 961         fwi.dwFlags = FLASHW_ALL;
 962         if ( flags & wxUSER_ATTENTION_INFO )
 963         {
 964             // just flash a few times
 965             fwi.uCount = 3;
 966         }
 967         else // wxUSER_ATTENTION_ERROR
 968         {
 969             // flash until the user notices it
 970             fwi.dwFlags |= FLASHW_TIMERNOFG;
 971         }
 972
 973         s_pfnFlashWindowEx(&fwi);
 974     }
 975     else // FlashWindowEx() not available
 976 #endif // FlashWindowEx() defined
 977     {
 978         wxUnusedVar(flags);
 979 #ifndef __WXWINCE__
 980         ::FlashWindow(GetHwnd(), TRUE);
 981 #endif // __WXWINCE__
 982     }
 983 }
 984
 985 // ----------------------------------------------------------------------------
 986 // wxTopLevelWindow event handling
 987 // ----------------------------------------------------------------------------
 988
 989 // Default activation behaviour - set the focus for the first child
 990 // subwindow found.
 991 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 992 {
 993     if ( event.GetActive() )
 994     {
 995         // restore focus to the child which was last focused unless we already
 996         // have it
 997         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 998
 999         wxWindow *winFocus = FindFocus();
1000         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
1001         {
1002             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
1003                                                 : NULL;
1004             if ( !parent )
1005             {
1006                 parent = this;
1007             }
1008
1009             wxSetFocusToChild(parent, &m_winLastFocused);
1010         }
1011     }
1012     else // deactivating
1013     {
1014         // remember the last focused child if it is our child
1015         m_winLastFocused = FindFocus();
1016
1017         if ( m_winLastFocused )
1018         {
1019             // let it know that it doesn't have focus any more
1020             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1021
1022             // and don't remember it if it's a child from some other frame
1023             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1024             {
1025                 m_winLastFocused = NULL;
1026             }
1027         }
1028
1029         wxLogTrace(_T("focus"),
1030                    _T("wxTLW %08x deactivated, last focused: %08x."),
1031                    (int) m_hWnd,
1032                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1033                                            : NULL));
1034
1035         event.Skip();
1036     }
1037 }
1038
1039 // the DialogProc for all wxWidgets dialogs
1040 LONG APIENTRY _EXPORT
1041 wxDlgProc(HWND hDlg,
1042           UINT message,
1043           WPARAM WXUNUSED(wParam),
1044           LPARAM WXUNUSED(lParam))
1045 {
1046     if ( message == WM_INITDIALOG )
1047     {
1048         // under CE, add a "Ok" button in the dialog title bar and make it full
1049         // screen
1050         //
1051         // TODO: find the window for this HWND, and take into account
1052         // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1053         //
1054         // Standard SDK doesn't have aygshell.dll: see
1055         // include/wx/msw/wince/libraries.h
1056 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1057         SHINITDLGINFO shidi;
1058         shidi.dwMask = SHIDIM_FLAGS;
1059         shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1060 #ifndef __SMARTPHONE__
1061                         | SHIDIF_DONEBUTTON
1062 #endif
1063                         ;
1064         shidi.hDlg = hDlg;
1065         SHInitDialog( &shidi );
1066 #else // no SHInitDialog()
1067         wxUnusedVar(hDlg);
1068 #endif
1069     }
1070
1071     // for almost all messages, returning FALSE means that we didn't process
1072     // the message
1073     //
1074     // for WM_INITDIALOG, returning TRUE tells system to set focus to
1075     // the first control in the dialog box, but as we set the focus
1076     // ourselves, we return FALSE for it as well
1077     return FALSE;
1078 }
1079
1080 // ============================================================================
1081 // wxTLWHiddenParentModule implementation
1082 // ============================================================================
1083
1084 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1085
1086 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1087
1088 bool wxTLWHiddenParentModule::OnInit()
1089 {
1090     ms_hwnd = NULL;
1091     ms_className = NULL;
1092
1093     return true;
1094 }
1095
1096 void wxTLWHiddenParentModule::OnExit()
1097 {
1098     if ( ms_hwnd )
1099     {
1100         if ( !::DestroyWindow(ms_hwnd) )
1101         {
1102             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1103         }
1104
1105         ms_hwnd = NULL;
1106     }
1107
1108     if ( ms_className )
1109     {
1110         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1111         {
1112             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1113         }
1114
1115         ms_className = NULL;
1116     }
1117 }
1118
1119 /* static */
1120 HWND wxTLWHiddenParentModule::GetHWND()
1121 {
1122     if ( !ms_hwnd )
1123     {
1124         if ( !ms_className )
1125         {
1126             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1127
1128             WNDCLASS wndclass;
1129             wxZeroMemory(wndclass);
1130
1131             wndclass.lpfnWndProc   = DefWindowProc;
1132             wndclass.hInstance     = wxGetInstance();
1133             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1134
1135             if ( !::RegisterClass(&wndclass) )
1136             {
1137                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1138             }
1139             else
1140             {
1141                 ms_className = HIDDEN_PARENT_CLASS;
1142             }
1143         }
1144
1145         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1146                                  (HMENU)NULL, wxGetInstance(), NULL);
1147         if ( !ms_hwnd )
1148         {
1149             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1150         }
1151     }
1152
1153     return ms_hwnd;
1154 }
1155
1156