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 }
 673
 674 bool wxTopLevelWindowMSW::IsMaximized() const
 675 {
 676 #ifdef __WXWINCE__
 677     return false;
 678 #else
 679     return ::IsZoomed(GetHwnd()) != 0;
 680 #endif
 681 }
 682
 683 void wxTopLevelWindowMSW::Iconize(bool iconize)
 684 {
 685     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 686 }
 687
 688 bool wxTopLevelWindowMSW::IsIconized() const
 689 {
 690 #ifdef __WXWINCE__
 691     return false;
 692 #else
 693     // also update the current state
 694     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 695
 696     return m_iconized;
 697 #endif
 698 }
 699
 700 void wxTopLevelWindowMSW::Restore()
 701 {
 702     DoShowWindow(SW_RESTORE);
 703 }
 704
 705 // ----------------------------------------------------------------------------
 706 // wxTopLevelWindowMSW fullscreen
 707 // ----------------------------------------------------------------------------
 708
 709 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 710 {
 711     if ( show == IsFullScreen() )
 712     {
 713         // nothing to do
 714         return true;
 715     }
 716
 717     m_fsIsShowing = show;
 718
 719     if ( show )
 720     {
 721         m_fsStyle = style;
 722
 723         // zap the frame borders
 724
 725         // save the 'normal' window style
 726         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 727
 728         // save the old position, width & height, maximize state
 729         m_fsOldSize = GetRect();
 730         m_fsIsMaximized = IsMaximized();
 731
 732         // decide which window style flags to turn off
 733         LONG newStyle = m_fsOldWindowStyle;
 734         LONG offFlags = 0;
 735
 736         if (style & wxFULLSCREEN_NOBORDER)
 737         {
 738             offFlags |= WS_BORDER;
 739 #ifndef __WXWINCE__
 740             offFlags |= WS_THICKFRAME;
 741 #endif
 742         }
 743         if (style & wxFULLSCREEN_NOCAPTION)
 744             offFlags |= WS_CAPTION | WS_SYSMENU;
 745
 746         newStyle &= ~offFlags;
 747
 748         // change our window style to be compatible with full-screen mode
 749         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 750
 751         wxRect rect;
 752 #if wxUSE_DISPLAY
 753         // resize to the size of the display containing us
 754         int dpy = wxDisplay::GetFromWindow(this);
 755         if ( dpy != wxNOT_FOUND )
 756         {
 757             rect = wxDisplay(dpy).GetGeometry();
 758         }
 759         else // fall back to the main desktop
 760 #else // wxUSE_DISPLAY
 761         {
 762             // resize to the size of the desktop
 763             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 764 #ifdef __WXWINCE__
 765             // FIXME: size of the bottom menu (toolbar)
 766             // should be taken in account
 767             rect.height += rect.y;
 768             rect.y       = 0;
 769 #endif
 770         }
 771 #endif // wxUSE_DISPLAY
 772
 773         SetSize(rect);
 774
 775         // now flush the window style cache and actually go full-screen
 776         long flags = SWP_FRAMECHANGED;
 777
 778         // showing the frame full screen should also show it if it's still
 779         // hidden
 780         if ( !IsShown() )
 781         {
 782             // don't call wxWindow version to avoid flicker from calling
 783             // ::ShowWindow() -- we're going to show the window at the correct
 784             // location directly below -- but do call the wxWindowBase version
 785             // to sync the internal m_isShown flag
 786             wxWindowBase::Show();
 787
 788             flags |= SWP_SHOWWINDOW;
 789         }
 790
 791         SetWindowPos(GetHwnd(), HWND_TOP,
 792                      rect.x, rect.y, rect.width, rect.height,
 793                      flags);
 794
 795 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 796         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 797 #endif
 798
 799         // finally send an event allowing the window to relayout itself &c
 800         wxSizeEvent event(rect.GetSize(), GetId());
 801         GetEventHandler()->ProcessEvent(event);
 802     }
 803     else // stop showing full screen
 804     {
 805 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 806         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 807 #endif
 808         Maximize(m_fsIsMaximized);
 809         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 810         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 811             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 812     }
 813
 814     return true;
 815 }
 816
 817 // ----------------------------------------------------------------------------
 818 // wxTopLevelWindowMSW misc
 819 // ----------------------------------------------------------------------------
 820
 821 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 822 {
 823     SetIcons( wxIconBundle( icon ) );
 824 }
 825
 826 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 827 {
 828     wxTopLevelWindowBase::SetIcons(icons);
 829
 830 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 831     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 832     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 833     {
 834         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 835                        (LPARAM)GetHiconOf(sml) );
 836     }
 837
 838     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 839     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 840     {
 841         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 842                        (LPARAM)GetHiconOf(big) );
 843     }
 844 #endif // __WIN95__
 845 }
 846
 847 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 848 {
 849 #if !defined(__WXMICROWIN__)
 850     // get system (a.k.a. window) menu
 851     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 852     if ( !hmenu )
 853     {
 854         // no system menu at all -- ok if we want to remove the close button
 855         // anyhow, but bad if we want to show it
 856         return !enable;
 857     }
 858
 859     // enabling/disabling the close item from it also automatically
 860     // disables/enables the close title bar button
 861     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 862                           MF_BYCOMMAND |
 863                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 864     {
 865         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 866
 867         return false;
 868     }
 869 #ifndef __WXWINCE__
 870     // update appearance immediately
 871     if ( !::DrawMenuBar(GetHwnd()) )
 872     {
 873         wxLogLastError(_T("DrawMenuBar"));
 874     }
 875 #endif
 876 #endif // !__WXMICROWIN__
 877
 878     return true;
 879 }
 880
 881 #ifndef __WXWINCE__
 882
 883 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 884 {
 885     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
 886                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 887
 888     // The empty region signifies that the shape should be removed from the
 889     // window.
 890     if ( region.IsEmpty() )
 891     {
 892         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 893         {
 894             wxLogLastError(_T("SetWindowRgn"));
 895             return false;
 896         }
 897         return true;
 898     }
 899
 900     // Windows takes ownership of the region, so
 901     // we'll have to make a copy of the region to give to it.
 902     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 903     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 904     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 905     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 906     delete[] (char*) rgnData;
 907
 908     // SetWindowRgn expects the region to be in coordinants
 909     // relative to the window, not the client area.  Figure
 910     // out the offset, if any.
 911     RECT rect;
 912     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 913     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 914     ::GetClientRect(GetHwnd(), &rect);
 915     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 916     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 917
 918     // Now call the shape API with the new region.
 919     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 920     {
 921         wxLogLastError(_T("SetWindowRgn"));
 922         return false;
 923     }
 924     return true;
 925 }
 926
 927 #endif // !__WXWINCE__
 928
 929 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
 930 {
 931     // check if we can use FlashWindowEx(): unfortunately an explicit test for
 932     // FLASHW_STOP, for example, doesn't work because MSVC6 headers do #define
 933     // it but don't provide FlashWindowEx() declaration
 934 #if (WINVER >= 0x0500 && (defined FLASHW_STOP))
 935     // available in the headers, check if it is supported by the system
 936     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
 937     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
 938     if ( !s_pfnFlashWindowEx )
 939     {
 940         wxDynamicLibrary dllUser32(_T("user32.dll"));
 941         s_pfnFlashWindowEx = (FlashWindowEx_t)
 942                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
 943
 944         // we can safely unload user32.dll here, it's goign to remain loaded as
 945         // long as the program is running anyhow
 946     }
 947
 948     if ( s_pfnFlashWindowEx )
 949     {
 950         WinStruct<FLASHWINFO> fwi;
 951         fwi.hwnd = GetHwnd();
 952         fwi.dwFlags = FLASHW_ALL;
 953         if ( flags & wxUSER_ATTENTION_INFO )
 954         {
 955             // just flash a few times
 956             fwi.uCount = 3;
 957         }
 958         else // wxUSER_ATTENTION_ERROR
 959         {
 960             // flash until the user notices it
 961             fwi.dwFlags |= FLASHW_TIMERNOFG;
 962         }
 963
 964         s_pfnFlashWindowEx(&fwi);
 965     }
 966     else // FlashWindowEx() not available
 967 #endif // FlashWindowEx() defined
 968     {
 969         wxUnusedVar(flags);
 970 #ifndef __WXWINCE__
 971         ::FlashWindow(GetHwnd(), TRUE);
 972 #endif // __WXWINCE__
 973     }
 974 }
 975
 976 // ----------------------------------------------------------------------------
 977 // wxTopLevelWindow event handling
 978 // ----------------------------------------------------------------------------
 979
 980 // Default activation behaviour - set the focus for the first child
 981 // subwindow found.
 982 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 983 {
 984     if ( event.GetActive() )
 985     {
 986         // restore focus to the child which was last focused unless we already
 987         // have it
 988         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 989
 990         wxWindow *winFocus = FindFocus();
 991         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 992         {
 993             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 994                                                 : NULL;
 995             if ( !parent )
 996             {
 997                 parent = this;
 998             }
 999
1000             wxSetFocusToChild(parent, &m_winLastFocused);
1001         }
1002     }
1003     else // deactivating
1004     {
1005         // remember the last focused child if it is our child
1006         m_winLastFocused = FindFocus();
1007
1008         if ( m_winLastFocused )
1009         {
1010             // let it know that it doesn't have focus any more
1011             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1012
1013             // and don't remember it if it's a child from some other frame
1014             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1015             {
1016                 m_winLastFocused = NULL;
1017             }
1018         }
1019
1020         wxLogTrace(_T("focus"),
1021                    _T("wxTLW %08x deactivated, last focused: %08x."),
1022                    (int) m_hWnd,
1023                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1024                                            : NULL));
1025
1026         event.Skip();
1027     }
1028 }
1029
1030 // the DialogProc for all wxWidgets dialogs
1031 LONG APIENTRY _EXPORT
1032 wxDlgProc(HWND hDlg,
1033           UINT message,
1034           WPARAM WXUNUSED(wParam),
1035           LPARAM WXUNUSED(lParam))
1036 {
1037     if ( message == WM_INITDIALOG )
1038     {
1039         // under CE, add a "Ok" button in the dialog title bar and make it full
1040         // screen
1041         //
1042         // TODO: find the window for this HWND, and take into account
1043         // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1044         //
1045         // Standard SDK doesn't have aygshell.dll: see
1046         // include/wx/msw/wince/libraries.h
1047 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1048         SHINITDLGINFO shidi;
1049         shidi.dwMask = SHIDIM_FLAGS;
1050         shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1051 #ifndef __SMARTPHONE__
1052                         | SHIDIF_DONEBUTTON
1053 #endif
1054                         ;
1055         shidi.hDlg = hDlg;
1056         SHInitDialog( &shidi );
1057 #else // no SHInitDialog()
1058         wxUnusedVar(hDlg);
1059 #endif
1060     }
1061
1062     // for almost all messages, returning FALSE means that we didn't process
1063     // the message
1064     //
1065     // for WM_INITDIALOG, returning TRUE tells system to set focus to
1066     // the first control in the dialog box, but as we set the focus
1067     // ourselves, we return FALSE for it as well
1068     return FALSE;
1069 }
1070
1071 // ============================================================================
1072 // wxTLWHiddenParentModule implementation
1073 // ============================================================================
1074
1075 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1076
1077 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1078
1079 bool wxTLWHiddenParentModule::OnInit()
1080 {
1081     ms_hwnd = NULL;
1082     ms_className = NULL;
1083
1084     return true;
1085 }
1086
1087 void wxTLWHiddenParentModule::OnExit()
1088 {
1089     if ( ms_hwnd )
1090     {
1091         if ( !::DestroyWindow(ms_hwnd) )
1092         {
1093             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1094         }
1095
1096         ms_hwnd = NULL;
1097     }
1098
1099     if ( ms_className )
1100     {
1101         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1102         {
1103             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1104         }
1105
1106         ms_className = NULL;
1107     }
1108 }
1109
1110 /* static */
1111 HWND wxTLWHiddenParentModule::GetHWND()
1112 {
1113     if ( !ms_hwnd )
1114     {
1115         if ( !ms_className )
1116         {
1117             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1118
1119             WNDCLASS wndclass;
1120             wxZeroMemory(wndclass);
1121
1122             wndclass.lpfnWndProc   = DefWindowProc;
1123             wndclass.hInstance     = wxGetInstance();
1124             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1125
1126             if ( !::RegisterClass(&wndclass) )
1127             {
1128                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1129             }
1130             else
1131             {
1132                 ms_className = HIDDEN_PARENT_CLASS;
1133             }
1134         }
1135
1136         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1137                                  (HMENU)NULL, wxGetInstance(), NULL);
1138         if ( !ms_hwnd )
1139         {
1140             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1141         }
1142     }
1143
1144     return ms_hwnd;
1145 }
1146
1147