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Fix for wxMemoryDC::GetAsBitmap() not working on Windows.
[wxWidgets.git] / src / msw / menu.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/menu.cpp
3 // Purpose: wxMenu, wxMenuBar, wxMenuItem
4 // Author: Julian Smart
5 // Modified by: Vadim Zeitlin
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ===========================================================================
13 // declarations
14 // ===========================================================================
15
16 // ---------------------------------------------------------------------------
17 // headers
18 // ---------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_MENUS
28
29 #include "wx/menu.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
33 #include "wx/frame.h"
34 #include "wx/utils.h"
35 #include "wx/intl.h"
36 #include "wx/log.h"
37 #endif
38
39 #if wxUSE_OWNER_DRAWN
40 #include "wx/ownerdrw.h"
41 #endif
42
43 #include "wx/msw/private.h"
44
45 #ifdef __WXWINCE__
46 #include <windows.h>
47 #include <windowsx.h>
48 #include <tchar.h>
49 #include <ole2.h>
50 #include <shellapi.h>
51 #if (_WIN32_WCE < 400) && !defined(__HANDHELDPC__)
52 #include <aygshell.h>
53 #endif
54
55 #include "wx/msw/wince/missing.h"
56
57 #endif
58
59 // other standard headers
60 #include <string.h>
61
62 //VC6 needs these defining, though they are in winuser.h
63 #ifndef MIIM_BITMAP
64 #define MIIM_STRING 0x00000040
65 #define MIIM_BITMAP 0x00000080
66 #define MIIM_FTYPE 0x00000100
67 #define HBMMENU_CALLBACK ((HBITMAP) -1)
68 typedef struct tagMENUINFO
69 {
70 DWORD cbSize;
71 DWORD fMask;
72 DWORD dwStyle;
73 UINT cyMax;
74 HBRUSH hbrBack;
75 DWORD dwContextHelpID;
76 DWORD dwMenuData;
77 } MENUINFO, FAR *LPMENUINFO;
78 #endif
79
80 #if wxUSE_OWNER_DRAWN
81 #include "wx/dynlib.h"
82 #endif
83
84 #ifndef MNS_CHECKORBMP
85 #define MNS_CHECKORBMP 0x04000000
86 #endif
87 #ifndef MIM_STYLE
88 #define MIM_STYLE 0x00000010
89 #endif
90
91 // ----------------------------------------------------------------------------
92 // global variables
93 // ----------------------------------------------------------------------------
94
95 // ----------------------------------------------------------------------------
96 // constants
97 // ----------------------------------------------------------------------------
98
99 // the (popup) menu title has this special id
100 static const int idMenuTitle = -3;
101
102 // ----------------------------------------------------------------------------
103 // private functions
104 // ----------------------------------------------------------------------------
105
106 // make the given menu item default
107 static void SetDefaultMenuItem(HMENU WXUNUSED_IN_WINCE(hmenu),
108 UINT WXUNUSED_IN_WINCE(id))
109 {
110 #ifndef __WXWINCE__
111 MENUITEMINFO mii;
112 wxZeroMemory(mii);
113 mii.cbSize = sizeof(MENUITEMINFO);
114 mii.fMask = MIIM_STATE;
115 mii.fState = MFS_DEFAULT;
116
117 if ( !::SetMenuItemInfo(hmenu, id, FALSE, &mii) )
118 {
119 wxLogLastError(wxT("SetMenuItemInfo"));
120 }
121 #endif
122 }
123
124 #ifdef __WXWINCE__
125 UINT GetMenuState(HMENU hMenu, UINT id, UINT flags)
126 {
127 MENUITEMINFO info;
128 wxZeroMemory(info);
129 info.cbSize = sizeof(info);
130 info.fMask = MIIM_STATE;
131 // MF_BYCOMMAND is zero so test MF_BYPOSITION
132 if ( !::GetMenuItemInfo(hMenu, id, flags & MF_BYPOSITION ? TRUE : FALSE , & info) )
133 wxLogLastError(wxT("GetMenuItemInfo"));
134 return info.fState;
135 }
136 #endif
137
138 // ============================================================================
139 // implementation
140 // ============================================================================
141
142 #include "wx/listimpl.cpp"
143
144 WX_DEFINE_LIST( wxMenuInfoList )
145
146 #if wxUSE_EXTENDED_RTTI
147
148 WX_DEFINE_FLAGS( wxMenuStyle )
149
150 wxBEGIN_FLAGS( wxMenuStyle )
151 wxFLAGS_MEMBER(wxMENU_TEAROFF)
152 wxEND_FLAGS( wxMenuStyle )
153
154 IMPLEMENT_DYNAMIC_CLASS_XTI(wxMenu, wxEvtHandler,"wx/menu.h")
155
156 wxCOLLECTION_TYPE_INFO( wxMenuItem * , wxMenuItemList ) ;
157
158 template<> void wxCollectionToVariantArray( wxMenuItemList const &theList, wxxVariantArray &value)
159 {
160 wxListCollectionToVariantArray<wxMenuItemList::compatibility_iterator>( theList , value ) ;
161 }
162
163 wxBEGIN_PROPERTIES_TABLE(wxMenu)
164 wxEVENT_PROPERTY( Select , wxEVT_COMMAND_MENU_SELECTED , wxCommandEvent)
165 wxPROPERTY( Title, wxString , SetTitle, GetTitle, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
166 wxREADONLY_PROPERTY_FLAGS( MenuStyle , wxMenuStyle , long , GetStyle , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
167 wxPROPERTY_COLLECTION( MenuItems , wxMenuItemList , wxMenuItem* , Append , GetMenuItems , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
168 wxEND_PROPERTIES_TABLE()
169
170 wxBEGIN_HANDLERS_TABLE(wxMenu)
171 wxEND_HANDLERS_TABLE()
172
173 wxDIRECT_CONSTRUCTOR_2( wxMenu , wxString , Title , long , MenuStyle )
174
175 WX_DEFINE_FLAGS( wxMenuBarStyle )
176
177 wxBEGIN_FLAGS( wxMenuBarStyle )
178 wxFLAGS_MEMBER(wxMB_DOCKABLE)
179 wxEND_FLAGS( wxMenuBarStyle )
180
181 // the negative id would lead the window (its superclass !) to vetoe streaming out otherwise
182 bool wxMenuBarStreamingCallback( const wxObject *WXUNUSED(object), wxWriter * , wxPersister * , wxxVariantArray & )
183 {
184 return true ;
185 }
186
187 IMPLEMENT_DYNAMIC_CLASS_XTI_CALLBACK(wxMenuBar, wxWindow ,"wx/menu.h",wxMenuBarStreamingCallback)
188
189 IMPLEMENT_DYNAMIC_CLASS_XTI(wxMenuInfo, wxObject , "wx/menu.h" )
190
191 wxBEGIN_PROPERTIES_TABLE(wxMenuInfo)
192 wxREADONLY_PROPERTY( Menu , wxMenu* , GetMenu , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
193 wxREADONLY_PROPERTY( Title , wxString , GetTitle , wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
194 wxEND_PROPERTIES_TABLE()
195
196 wxBEGIN_HANDLERS_TABLE(wxMenuInfo)
197 wxEND_HANDLERS_TABLE()
198
199 wxCONSTRUCTOR_2( wxMenuInfo , wxMenu* , Menu , wxString , Title )
200
201 wxCOLLECTION_TYPE_INFO( wxMenuInfo * , wxMenuInfoList ) ;
202
203 template<> void wxCollectionToVariantArray( wxMenuInfoList const &theList, wxxVariantArray &value)
204 {
205 wxListCollectionToVariantArray<wxMenuInfoList::compatibility_iterator>( theList , value ) ;
206 }
207
208 wxBEGIN_PROPERTIES_TABLE(wxMenuBar)
209 wxPROPERTY_COLLECTION( MenuInfos , wxMenuInfoList , wxMenuInfo* , Append , GetMenuInfos , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
210 wxEND_PROPERTIES_TABLE()
211
212 wxBEGIN_HANDLERS_TABLE(wxMenuBar)
213 wxEND_HANDLERS_TABLE()
214
215 wxCONSTRUCTOR_DUMMY( wxMenuBar )
216
217 #else
218 IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
219 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxWindow)
220 IMPLEMENT_DYNAMIC_CLASS(wxMenuInfo, wxObject)
221 #endif
222
223 const wxMenuInfoList& wxMenuBar::GetMenuInfos() const
224 {
225 wxMenuInfoList* list = const_cast< wxMenuInfoList* >( &m_menuInfos ) ;
226 WX_CLEAR_LIST( wxMenuInfoList , *list ) ;
227 for( size_t i = 0 ; i < GetMenuCount() ; ++i )
228 {
229 wxMenuInfo* info = new wxMenuInfo() ;
230 info->Create( const_cast<wxMenuBar*>(this)->GetMenu(i) , GetMenuLabel(i) ) ;
231 list->Append( info ) ;
232 }
233 return m_menuInfos ;
234 }
235
236 // ---------------------------------------------------------------------------
237 // wxMenu construction, adding and removing menu items
238 // ---------------------------------------------------------------------------
239
240 // Construct a menu with optional title (then use append)
241 void wxMenu::Init()
242 {
243 m_doBreak = false;
244 m_startRadioGroup = -1;
245
246 // create the menu
247 m_hMenu = (WXHMENU)CreatePopupMenu();
248 if ( !m_hMenu )
249 {
250 wxLogLastError(wxT("CreatePopupMenu"));
251 }
252
253 // if we have a title, insert it in the beginning of the menu
254 if ( !m_title.empty() )
255 {
256 Append(idMenuTitle, m_title);
257 AppendSeparator();
258 }
259 }
260
261 // The wxWindow destructor will take care of deleting the submenus.
262 wxMenu::~wxMenu()
263 {
264 // we should free Windows resources only if Windows doesn't do it for us
265 // which happens if we're attached to a menubar or a submenu of another
266 // menu
267 if ( !IsAttached() && !GetParent() )
268 {
269 if ( !::DestroyMenu(GetHmenu()) )
270 {
271 wxLogLastError(wxT("DestroyMenu"));
272 }
273 }
274
275 #if wxUSE_ACCEL
276 // delete accels
277 WX_CLEAR_ARRAY(m_accels);
278 #endif // wxUSE_ACCEL
279 }
280
281 void wxMenu::Break()
282 {
283 // this will take effect during the next call to Append()
284 m_doBreak = true;
285 }
286
287 void wxMenu::Attach(wxMenuBarBase *menubar)
288 {
289 wxMenuBase::Attach(menubar);
290
291 EndRadioGroup();
292 }
293
294 #if wxUSE_ACCEL
295
296 int wxMenu::FindAccel(int id) const
297 {
298 size_t n, count = m_accels.GetCount();
299 for ( n = 0; n < count; n++ )
300 {
301 if ( m_accels[n]->m_command == id )
302 return n;
303 }
304
305 return wxNOT_FOUND;
306 }
307
308 void wxMenu::UpdateAccel(wxMenuItem *item)
309 {
310 if ( item->IsSubMenu() )
311 {
312 wxMenu *submenu = item->GetSubMenu();
313 wxMenuItemList::compatibility_iterator node = submenu->GetMenuItems().GetFirst();
314 while ( node )
315 {
316 UpdateAccel(node->GetData());
317
318 node = node->GetNext();
319 }
320 }
321 else if ( !item->IsSeparator() )
322 {
323 // recurse upwards: we should only modify m_accels of the top level
324 // menus, not of the submenus as wxMenuBar doesn't look at them
325 // (alternative and arguable cleaner solution would be to recurse
326 // downwards in GetAccelCount() and CopyAccels())
327 if ( GetParent() )
328 {
329 GetParent()->UpdateAccel(item);
330 return;
331 }
332
333 // find the (new) accel for this item
334 wxAcceleratorEntry *accel = wxAcceleratorEntry::Create(item->GetItemLabel());
335 if ( accel )
336 accel->m_command = item->GetId();
337
338 // find the old one
339 int n = FindAccel(item->GetId());
340 if ( n == wxNOT_FOUND )
341 {
342 // no old, add new if any
343 if ( accel )
344 m_accels.Add(accel);
345 else
346 return; // skipping RebuildAccelTable() below
347 }
348 else
349 {
350 // replace old with new or just remove the old one if no new
351 delete m_accels[n];
352 if ( accel )
353 m_accels[n] = accel;
354 else
355 m_accels.RemoveAt(n);
356 }
357
358 if ( IsAttached() )
359 {
360 GetMenuBar()->RebuildAccelTable();
361 }
362 }
363 //else: it is a separator, they can't have accels, nothing to do
364 }
365
366 #endif // wxUSE_ACCEL
367
368 // append a new item or submenu to the menu
369 bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
370 {
371 #if wxUSE_ACCEL
372 UpdateAccel(pItem);
373 #endif // wxUSE_ACCEL
374
375 UINT flags = 0;
376
377 // if "Break" has just been called, insert a menu break before this item
378 // (and don't forget to reset the flag)
379 if ( m_doBreak ) {
380 flags |= MF_MENUBREAK;
381 m_doBreak = false;
382 }
383
384 if ( pItem->IsSeparator() ) {
385 flags |= MF_SEPARATOR;
386 }
387
388 // id is the numeric id for normal menu items and HMENU for submenus as
389 // required by ::AppendMenu() API
390 UINT id;
391 wxMenu *submenu = pItem->GetSubMenu();
392 if ( submenu != NULL ) {
393 wxASSERT_MSG( submenu->GetHMenu(), wxT("invalid submenu") );
394
395 submenu->SetParent(this);
396
397 id = (UINT)submenu->GetHMenu();
398
399 flags |= MF_POPUP;
400 }
401 else {
402 id = pItem->GetId();
403 }
404
405
406 // prepare to insert the item in the menu
407 wxString itemText = pItem->GetItemLabel();
408 LPCTSTR pData = NULL;
409 if ( pos == (size_t)-1 )
410 {
411 // append at the end (note that the item is already appended to
412 // internal data structures)
413 pos = GetMenuItemCount() - 1;
414 }
415
416 // adjust position to account for the title, if any
417 if ( !m_title.empty() )
418 pos += 2; // for the title itself and its separator
419
420 BOOL ok = false;
421
422 #if wxUSE_OWNER_DRAWN
423 // Currently, mixing owner-drawn and non-owner-drawn items results in
424 // inconsistent margins, so we force this to be owner-drawn if any other
425 // items already are. Later we might want to use a boolean in the wxMenu
426 // to avoid search. Also we might make this fix unnecessary by getting the correct
427 // margin using NONCLIENTMETRICS.
428 if ( !pItem->IsOwnerDrawn() && !pItem->IsSeparator() )
429 {
430 // Check if any other items are ownerdrawn, and make ownerdrawn if so
431 wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
432 while (node)
433 {
434 if (node->GetData()->IsOwnerDrawn())
435 {
436 pItem->SetOwnerDrawn(true);
437 break;
438 }
439 node = node->GetNext();
440 }
441 }
442 #endif
443
444 // check if we have something more than a simple text item
445 #if wxUSE_OWNER_DRAWN
446 if ( pItem->IsOwnerDrawn() )
447 {
448 // is the item owner-drawn just because of the [checked] bitmap?
449 if ( (pItem->GetBitmap(false).Ok() || pItem->GetBitmap(true).Ok()) &&
450 !pItem->GetTextColour().Ok() &&
451 !pItem->GetBackgroundColour().Ok() &&
452 !pItem->GetFont().Ok() )
453 {
454 // try to use InsertMenuItem() as it's guaranteed to look correct
455 // while our owner-drawn code is not
456 #ifndef __DMC__
457 // DMC at march 2007 doesn't have HBITMAP hbmpItem tagMENUITEMINFOA /W
458 // MIIM_BITMAP only works under WinME/2000+
459 WinStruct<MENUITEMINFO> mii;
460 if ( wxGetWinVersion() >= wxWinVersion_98 )
461 {
462 mii.fMask = MIIM_STRING | MIIM_DATA | MIIM_BITMAP;
463 if ( pItem->IsCheckable() )
464 {
465 // need to set checked/unchecked bitmaps as otherwise our
466 // MSWOnDrawItem() item is not called
467 mii.fMask |= MIIM_CHECKMARKS;
468 }
469
470 mii.cch = itemText.length();
471 mii.dwTypeData = wx_const_cast(wxChar *, itemText.wx_str());
472
473 if (flags & MF_POPUP)
474 {
475 mii.fMask |= MIIM_SUBMENU;
476 mii.hSubMenu = (HMENU)pItem->GetSubMenu()->GetHMenu();
477 }
478 else
479 {
480 mii.fMask |= MIIM_ID;
481 mii.wID = id;
482 }
483
484 // we can't pass HBITMAP directly as hbmpItem for 2 reasons:
485 // 1. we can't draw it with transparency then (this is not
486 // very important now but would be with themed menu bg)
487 // 2. worse, Windows inverts the bitmap for the selected
488 // item and this looks downright ugly
489 //
490 // so instead draw it ourselves in MSWOnDrawItem()
491 mii.dwItemData = wx_reinterpret_cast(ULONG_PTR, pItem);
492 if ( pItem->IsCheckable() )
493 {
494 mii.hbmpChecked =
495 mii.hbmpUnchecked = HBMMENU_CALLBACK;
496 }
497 mii.hbmpItem = HBMMENU_CALLBACK;
498
499 ok = ::InsertMenuItem(GetHmenu(), pos, TRUE /* by pos */, &mii);
500 if ( !ok )
501 {
502 wxLogLastError(wxT("InsertMenuItem()"));
503 }
504 else // InsertMenuItem() ok
505 {
506 // we need to remove the extra indent which is reserved for
507 // the checkboxes by default as it looks ugly unless check
508 // boxes are used together with bitmaps and this is not the
509 // case in wx API
510 WinStruct<MENUINFO> mi;
511
512 // don't call SetMenuInfo() directly, this would prevent
513 // the app from starting up under Windows 95/NT 4
514 typedef BOOL (WINAPI *SetMenuInfo_t)(HMENU, MENUINFO *);
515
516 wxDynamicLibrary dllUser(_T("user32"));
517 wxDYNLIB_FUNCTION(SetMenuInfo_t, SetMenuInfo, dllUser);
518 if ( pfnSetMenuInfo )
519 {
520 mi.fMask = MIM_STYLE;
521 mi.dwStyle = MNS_CHECKORBMP;
522 if ( !(*pfnSetMenuInfo)(GetHmenu(), &mi) )
523 wxLogLastError(_T("SetMenuInfo(MNS_NOCHECK)"));
524 }
525
526 // tell the item that it's not really owner-drawn but only
527 // needs to draw its bitmap, the rest is done by Windows
528 pItem->ResetOwnerDrawn();
529 }
530 }
531 #endif // __DMC__
532 }
533
534 if ( !ok )
535 {
536 // item draws itself, pass pointer to it in data parameter
537 flags |= MF_OWNERDRAW;
538 pData = (LPCTSTR)pItem;
539 }
540 }
541 else
542 #endif // wxUSE_OWNER_DRAWN
543 {
544 // item is just a normal string (passed in data parameter)
545 flags |= MF_STRING;
546
547 #ifdef __WXWINCE__
548 itemText = wxMenuItem::GetLabelText(itemText);
549 #endif
550
551 pData = (wxChar*)itemText.wx_str();
552 }
553
554 // item might have already been inserted by InsertMenuItem() above
555 if ( !ok )
556 {
557 if ( !::InsertMenu(GetHmenu(), pos, flags | MF_BYPOSITION, id, pData) )
558 {
559 wxLogLastError(wxT("InsertMenu[Item]()"));
560
561 return false;
562 }
563 }
564
565
566 // if we just appended the title, highlight it
567 if ( (int)id == idMenuTitle )
568 {
569 // visually select the menu title
570 SetDefaultMenuItem(GetHmenu(), id);
571 }
572
573 // if we're already attached to the menubar, we must update it
574 if ( IsAttached() && GetMenuBar()->IsAttached() )
575 {
576 GetMenuBar()->Refresh();
577 }
578
579 return true;
580 }
581
582 void wxMenu::EndRadioGroup()
583 {
584 // we're not inside a radio group any longer
585 m_startRadioGroup = -1;
586 }
587
588 wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
589 {
590 wxCHECK_MSG( item, NULL, _T("NULL item in wxMenu::DoAppend") );
591
592 bool check = false;
593
594 if ( item->GetKind() == wxITEM_RADIO )
595 {
596 int count = GetMenuItemCount();
597
598 if ( m_startRadioGroup == -1 )
599 {
600 // start a new radio group
601 m_startRadioGroup = count;
602
603 // for now it has just one element
604 item->SetAsRadioGroupStart();
605 item->SetRadioGroupEnd(m_startRadioGroup);
606
607 // ensure that we have a checked item in the radio group
608 check = true;
609 }
610 else // extend the current radio group
611 {
612 // we need to update its end item
613 item->SetRadioGroupStart(m_startRadioGroup);
614 wxMenuItemList::compatibility_iterator node = GetMenuItems().Item(m_startRadioGroup);
615
616 if ( node )
617 {
618 node->GetData()->SetRadioGroupEnd(count);
619 }
620 else
621 {
622 wxFAIL_MSG( _T("where is the radio group start item?") );
623 }
624 }
625 }
626 else // not a radio item
627 {
628 EndRadioGroup();
629 }
630
631 if ( !wxMenuBase::DoAppend(item) || !DoInsertOrAppend(item) )
632 {
633 return NULL;
634 }
635
636 if ( check )
637 {
638 // check the item initially
639 item->Check(true);
640 }
641
642 return item;
643 }
644
645 wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
646 {
647 if (wxMenuBase::DoInsert(pos, item) && DoInsertOrAppend(item, pos))
648 return item;
649 else
650 return NULL;
651 }
652
653 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
654 {
655 // we need to find the item's position in the child list
656 size_t pos;
657 wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
658 for ( pos = 0; node; pos++ )
659 {
660 if ( node->GetData() == item )
661 break;
662
663 node = node->GetNext();
664 }
665
666 // DoRemove() (unlike Remove) can only be called for an existing item!
667 wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
668
669 #if wxUSE_ACCEL
670 // remove the corresponding accel from the accel table
671 int n = FindAccel(item->GetId());
672 if ( n != wxNOT_FOUND )
673 {
674 delete m_accels[n];
675
676 m_accels.RemoveAt(n);
677 }
678 //else: this item doesn't have an accel, nothing to do
679 #endif // wxUSE_ACCEL
680
681 // remove the item from the menu
682 if ( !::RemoveMenu(GetHmenu(), (UINT)pos, MF_BYPOSITION) )
683 {
684 wxLogLastError(wxT("RemoveMenu"));
685 }
686
687 if ( IsAttached() && GetMenuBar()->IsAttached() )
688 {
689 // otherwise, the change won't be visible
690 GetMenuBar()->Refresh();
691 }
692
693 // and from internal data structures
694 return wxMenuBase::DoRemove(item);
695 }
696
697 // ---------------------------------------------------------------------------
698 // accelerator helpers
699 // ---------------------------------------------------------------------------
700
701 #if wxUSE_ACCEL
702
703 // create the wxAcceleratorEntries for our accels and put them into the provided
704 // array - return the number of accels we have
705 size_t wxMenu::CopyAccels(wxAcceleratorEntry *accels) const
706 {
707 size_t count = GetAccelCount();
708 for ( size_t n = 0; n < count; n++ )
709 {
710 *accels++ = *m_accels[n];
711 }
712
713 return count;
714 }
715
716 #endif // wxUSE_ACCEL
717
718 // ---------------------------------------------------------------------------
719 // set wxMenu title
720 // ---------------------------------------------------------------------------
721
722 void wxMenu::SetTitle(const wxString& label)
723 {
724 bool hasNoTitle = m_title.empty();
725 m_title = label;
726
727 HMENU hMenu = GetHmenu();
728
729 if ( hasNoTitle )
730 {
731 if ( !label.empty() )
732 {
733 if ( !::InsertMenu(hMenu, 0u, MF_BYPOSITION | MF_STRING,
734 (unsigned)idMenuTitle, m_title.wx_str()) ||
735 !::InsertMenu(hMenu, 1u, MF_BYPOSITION, (unsigned)-1, NULL) )
736 {
737 wxLogLastError(wxT("InsertMenu"));
738 }
739 }
740 }
741 else
742 {
743 if ( label.empty() )
744 {
745 // remove the title and the separator after it
746 if ( !RemoveMenu(hMenu, 0, MF_BYPOSITION) ||
747 !RemoveMenu(hMenu, 0, MF_BYPOSITION) )
748 {
749 wxLogLastError(wxT("RemoveMenu"));
750 }
751 }
752 else
753 {
754 // modify the title
755 #ifdef __WXWINCE__
756 MENUITEMINFO info;
757 wxZeroMemory(info);
758 info.cbSize = sizeof(info);
759 info.fMask = MIIM_TYPE;
760 info.fType = MFT_STRING;
761 info.cch = m_title.length();
762 info.dwTypeData = wx_const_cast(wxChar *, m_title.wx_str());
763 if ( !SetMenuItemInfo(hMenu, 0, TRUE, & info) )
764 {
765 wxLogLastError(wxT("SetMenuItemInfo"));
766 }
767 #else
768 if ( !ModifyMenu(hMenu, 0u,
769 MF_BYPOSITION | MF_STRING,
770 (unsigned)idMenuTitle, m_title.wx_str()) )
771 {
772 wxLogLastError(wxT("ModifyMenu"));
773 }
774 #endif
775 }
776 }
777
778 #ifdef __WIN32__
779 // put the title string in bold face
780 if ( !m_title.empty() )
781 {
782 SetDefaultMenuItem(GetHmenu(), (UINT)idMenuTitle);
783 }
784 #endif // Win32
785 }
786
787 // ---------------------------------------------------------------------------
788 // event processing
789 // ---------------------------------------------------------------------------
790
791 bool wxMenu::MSWCommand(WXUINT WXUNUSED(param), WXWORD id)
792 {
793 // ignore commands from the menu title
794 if ( id != (WXWORD)idMenuTitle )
795 {
796 // update the check item when it's clicked
797 wxMenuItem * const item = FindItem(id);
798 if ( item && item->IsCheckable() )
799 item->Toggle();
800
801 // get the status of the menu item: note that it has been just changed
802 // by Toggle() above so here we already get the new state of the item
803 UINT menuState = ::GetMenuState(GetHmenu(), id, MF_BYCOMMAND);
804 SendEvent(id, menuState & MF_CHECKED);
805 }
806
807 return true;
808 }
809
810 // ---------------------------------------------------------------------------
811 // other
812 // ---------------------------------------------------------------------------
813
814 wxWindow *wxMenu::GetWindow() const
815 {
816 if ( m_invokingWindow != NULL )
817 return m_invokingWindow;
818 else if ( GetMenuBar() != NULL)
819 return GetMenuBar()->GetFrame();
820
821 return NULL;
822 }
823
824 // ---------------------------------------------------------------------------
825 // Menu Bar
826 // ---------------------------------------------------------------------------
827
828 void wxMenuBar::Init()
829 {
830 m_eventHandler = this;
831 m_hMenu = 0;
832 #if wxUSE_TOOLBAR && defined(__WXWINCE__)
833 m_toolBar = NULL;
834 #endif
835 // Not using a combined wxToolBar/wxMenuBar? then use
836 // a commandbar in WinCE .NET just to implement the
837 // menubar.
838 #if defined(WINCE_WITH_COMMANDBAR)
839 m_commandBar = NULL;
840 m_adornmentsAdded = false;
841 #endif
842 }
843
844 wxMenuBar::wxMenuBar()
845 {
846 Init();
847 }
848
849 wxMenuBar::wxMenuBar( long WXUNUSED(style) )
850 {
851 Init();
852 }
853
854 wxMenuBar::wxMenuBar(size_t count, wxMenu *menus[], const wxString titles[], long WXUNUSED(style))
855 {
856 Init();
857
858 m_titles.Alloc(count);
859
860 for ( size_t i = 0; i < count; i++ )
861 {
862 m_menus.Append(menus[i]);
863 m_titles.Add(titles[i]);
864
865 menus[i]->Attach(this);
866 }
867 }
868
869 wxMenuBar::~wxMenuBar()
870 {
871 // In Windows CE (not .NET), the menubar is always associated
872 // with a toolbar, which destroys the menu implicitly.
873 #if defined(WINCE_WITHOUT_COMMANDBAR) && defined(__POCKETPC__)
874 if (GetToolBar())
875 {
876 wxToolMenuBar* toolMenuBar = wxDynamicCast(GetToolBar(), wxToolMenuBar);
877 if (toolMenuBar)
878 toolMenuBar->SetMenuBar(NULL);
879 }
880 #else
881 // we should free Windows resources only if Windows doesn't do it for us
882 // which happens if we're attached to a frame
883 if (m_hMenu && !IsAttached())
884 {
885 #if defined(WINCE_WITH_COMMANDBAR)
886 ::DestroyWindow((HWND) m_commandBar);
887 m_commandBar = (WXHWND) NULL;
888 #else
889 ::DestroyMenu((HMENU)m_hMenu);
890 #endif
891 m_hMenu = (WXHMENU)NULL;
892 }
893 #endif
894 }
895
896 // ---------------------------------------------------------------------------
897 // wxMenuBar helpers
898 // ---------------------------------------------------------------------------
899
900 void wxMenuBar::Refresh()
901 {
902 if ( IsFrozen() )
903 return;
904
905 wxCHECK_RET( IsAttached(), wxT("can't refresh unattached menubar") );
906
907 #if defined(WINCE_WITHOUT_COMMANDBAR)
908 if (GetToolBar())
909 {
910 CommandBar_DrawMenuBar((HWND) GetToolBar()->GetHWND(), 0);
911 }
912 #elif defined(WINCE_WITH_COMMANDBAR)
913 if (m_commandBar)
914 DrawMenuBar((HWND) m_commandBar);
915 #else
916 DrawMenuBar(GetHwndOf(GetFrame()));
917 #endif
918 }
919
920 WXHMENU wxMenuBar::Create()
921 {
922 // Note: this doesn't work at all on Smartphone,
923 // since you have to use resources.
924 // We'll have to find another way to add a menu
925 // by changing/adding menu items to an existing menu.
926 #if defined(WINCE_WITHOUT_COMMANDBAR)
927 if ( m_hMenu != 0 )
928 return m_hMenu;
929
930 wxToolMenuBar * const bar = wx_static_cast(wxToolMenuBar *, GetToolBar());
931 if ( !bar )
932 return NULL;
933
934 HWND hCommandBar = GetHwndOf(bar);
935
936 // notify comctl32.dll about the version of the headers we use before using
937 // any other TB_XXX messages
938 SendMessage(hCommandBar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
939
940 TBBUTTON tbButton;
941 wxZeroMemory(tbButton);
942 tbButton.iBitmap = I_IMAGENONE;
943 tbButton.fsState = TBSTATE_ENABLED;
944 tbButton.fsStyle = TBSTYLE_DROPDOWN |
945 TBSTYLE_NO_DROPDOWN_ARROW |
946 TBSTYLE_AUTOSIZE;
947
948 for ( unsigned i = 0; i < GetMenuCount(); i++ )
949 {
950 HMENU hPopupMenu = (HMENU) GetMenu(i)->GetHMenu();
951 tbButton.dwData = (DWORD)hPopupMenu;
952 wxString label = wxStripMenuCodes(GetMenuLabel(i));
953 tbButton.iString = (int) label.wx_str();
954
955 tbButton.idCommand = NewControlId();
956 if ( !::SendMessage(hCommandBar, TB_INSERTBUTTON, i, (LPARAM)&tbButton) )
957 {
958 wxLogLastError(wxT("TB_INSERTBUTTON"));
959 }
960 }
961
962 m_hMenu = bar->GetHMenu();
963 return m_hMenu;
964 #else // !__WXWINCE__
965 if ( m_hMenu != 0 )
966 return m_hMenu;
967
968 m_hMenu = (WXHMENU)::CreateMenu();
969
970 if ( !m_hMenu )
971 {
972 wxLogLastError(wxT("CreateMenu"));
973 }
974 else
975 {
976 size_t count = GetMenuCount(), i;
977 wxMenuList::iterator it;
978 for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
979 {
980 if ( !::AppendMenu((HMENU)m_hMenu, MF_POPUP | MF_STRING,
981 (UINT)(*it)->GetHMenu(),
982 m_titles[i].wx_str()) )
983 {
984 wxLogLastError(wxT("AppendMenu"));
985 }
986 }
987 }
988
989 return m_hMenu;
990 #endif // __WXWINCE__/!__WXWINCE__
991 }
992
993 int wxMenuBar::MSWPositionForWxMenu(wxMenu *menu, int wxpos)
994 {
995 wxASSERT(menu);
996 wxASSERT(menu->GetHMenu());
997 wxASSERT(m_hMenu);
998
999 #if defined(__WXWINCE__)
1000 int totalMSWItems = GetMenuCount();
1001 #else
1002 int totalMSWItems = GetMenuItemCount((HMENU)m_hMenu);
1003 #endif
1004
1005 int i; // For old C++ compatibility
1006 for(i=wxpos; i<totalMSWItems; i++)
1007 {
1008 if(GetSubMenu((HMENU)m_hMenu,i)==(HMENU)menu->GetHMenu())
1009 return i;
1010 }
1011 for(i=0; i<wxpos; i++)
1012 {
1013 if(GetSubMenu((HMENU)m_hMenu,i)==(HMENU)menu->GetHMenu())
1014 return i;
1015 }
1016 wxFAIL;
1017 return -1;
1018 }
1019
1020 // ---------------------------------------------------------------------------
1021 // wxMenuBar functions to work with the top level submenus
1022 // ---------------------------------------------------------------------------
1023
1024 // NB: we don't support owner drawn top level items for now, if we do these
1025 // functions would have to be changed to use wxMenuItem as well
1026
1027 void wxMenuBar::EnableTop(size_t pos, bool enable)
1028 {
1029 wxCHECK_RET( IsAttached(), wxT("doesn't work with unattached menubars") );
1030 wxCHECK_RET( pos < GetMenuCount(), wxT("invalid menu index") );
1031
1032 int flag = enable ? MF_ENABLED : MF_GRAYED;
1033
1034 EnableMenuItem((HMENU)m_hMenu, MSWPositionForWxMenu(GetMenu(pos),pos), MF_BYPOSITION | flag);
1035
1036 Refresh();
1037 }
1038
1039 void wxMenuBar::SetMenuLabel(size_t pos, const wxString& label)
1040 {
1041 wxCHECK_RET( pos < GetMenuCount(), wxT("invalid menu index") );
1042
1043 m_titles[pos] = label;
1044
1045 if ( !IsAttached() )
1046 {
1047 return;
1048 }
1049 //else: have to modify the existing menu
1050
1051 int mswpos = MSWPositionForWxMenu(GetMenu(pos),pos);
1052
1053 UINT id;
1054 UINT flagsOld = ::GetMenuState((HMENU)m_hMenu, mswpos, MF_BYPOSITION);
1055 if ( flagsOld == 0xFFFFFFFF )
1056 {
1057 wxLogLastError(wxT("GetMenuState"));
1058
1059 return;
1060 }
1061
1062 if ( flagsOld & MF_POPUP )
1063 {
1064 // HIBYTE contains the number of items in the submenu in this case
1065 flagsOld &= 0xff;
1066 id = (UINT)::GetSubMenu((HMENU)m_hMenu, mswpos);
1067 }
1068 else
1069 {
1070 id = pos;
1071 }
1072
1073 #ifdef __WXWINCE__
1074 MENUITEMINFO info;
1075 wxZeroMemory(info);
1076 info.cbSize = sizeof(info);
1077 info.fMask = MIIM_TYPE;
1078 info.fType = MFT_STRING;
1079 info.cch = label.length();
1080 info.dwTypeData = wx_const_cast(wxChar *, label.wx_str());
1081 if ( !SetMenuItemInfo(GetHmenu(), id, TRUE, & info) )
1082 {
1083 wxLogLastError(wxT("SetMenuItemInfo"));
1084 }
1085
1086 #else
1087 if ( ::ModifyMenu(GetHmenu(), mswpos, MF_BYPOSITION | MF_STRING | flagsOld,
1088 id, label.wx_str()) == (int)0xFFFFFFFF )
1089 {
1090 wxLogLastError(wxT("ModifyMenu"));
1091 }
1092 #endif
1093
1094 Refresh();
1095 }
1096
1097 wxString wxMenuBar::GetMenuLabel(size_t pos) const
1098 {
1099 wxCHECK_MSG( pos < GetMenuCount(), wxEmptyString,
1100 wxT("invalid menu index in wxMenuBar::GetMenuLabel") );
1101
1102 return m_titles[pos];
1103 }
1104
1105 // ---------------------------------------------------------------------------
1106 // wxMenuBar construction
1107 // ---------------------------------------------------------------------------
1108
1109 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
1110 {
1111 wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title);
1112 if ( !menuOld )
1113 return NULL;
1114
1115 m_titles[pos] = title;
1116
1117 #if defined(WINCE_WITHOUT_COMMANDBAR)
1118 if (IsAttached())
1119 #else
1120 if (GetHmenu())
1121 #endif
1122 {
1123 int mswpos = MSWPositionForWxMenu(menuOld,pos);
1124
1125 // can't use ModifyMenu() because it deletes the submenu it replaces
1126 if ( !::RemoveMenu(GetHmenu(), (UINT)mswpos, MF_BYPOSITION) )
1127 {
1128 wxLogLastError(wxT("RemoveMenu"));
1129 }
1130
1131 if ( !::InsertMenu(GetHmenu(), (UINT)mswpos,
1132 MF_BYPOSITION | MF_POPUP | MF_STRING,
1133 (UINT)GetHmenuOf(menu), title.wx_str()) )
1134 {
1135 wxLogLastError(wxT("InsertMenu"));
1136 }
1137
1138 #if wxUSE_ACCEL
1139 if ( menuOld->HasAccels() || menu->HasAccels() )
1140 {
1141 // need to rebuild accell table
1142 RebuildAccelTable();
1143 }
1144 #endif // wxUSE_ACCEL
1145
1146 if (IsAttached())
1147 Refresh();
1148 }
1149
1150 return menuOld;
1151 }
1152
1153 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
1154 {
1155 // Find out which MSW item before which we'll be inserting before
1156 // wxMenuBarBase::Insert is called and GetMenu(pos) is the new menu.
1157 // If IsAttached() is false this won't be used anyway
1158 bool isAttached =
1159 #if defined(WINCE_WITHOUT_COMMANDBAR)
1160 IsAttached();
1161 #else
1162 (GetHmenu() != 0);
1163 #endif
1164
1165 int mswpos = (!isAttached || (pos == m_menus.GetCount()))
1166 ? -1 // append the menu
1167 : MSWPositionForWxMenu(GetMenu(pos),pos);
1168
1169 if ( !wxMenuBarBase::Insert(pos, menu, title) )
1170 return false;
1171
1172 m_titles.Insert(title, pos);
1173
1174 if ( isAttached )
1175 {
1176 #if defined(WINCE_WITHOUT_COMMANDBAR)
1177 if (!GetToolBar())
1178 return false;
1179 TBBUTTON tbButton;
1180 memset(&tbButton, 0, sizeof(TBBUTTON));
1181 tbButton.iBitmap = I_IMAGENONE;
1182 tbButton.fsState = TBSTATE_ENABLED;
1183 tbButton.fsStyle = TBSTYLE_DROPDOWN | TBSTYLE_NO_DROPDOWN_ARROW | TBSTYLE_AUTOSIZE;
1184
1185 HMENU hPopupMenu = (HMENU) menu->GetHMenu() ;
1186 tbButton.dwData = (DWORD)hPopupMenu;
1187 wxString label = wxStripMenuCodes(title);
1188 tbButton.iString = (int) label.wx_str();
1189
1190 tbButton.idCommand = NewControlId();
1191 if (!::SendMessage((HWND) GetToolBar()->GetHWND(), TB_INSERTBUTTON, pos, (LPARAM)&tbButton))
1192 {
1193 wxLogLastError(wxT("TB_INSERTBUTTON"));
1194 return false;
1195 }
1196 wxUnusedVar(mswpos);
1197 #else
1198 if ( !::InsertMenu(GetHmenu(), mswpos,
1199 MF_BYPOSITION | MF_POPUP | MF_STRING,
1200 (UINT)GetHmenuOf(menu), title.wx_str()) )
1201 {
1202 wxLogLastError(wxT("InsertMenu"));
1203 }
1204 #endif
1205 #if wxUSE_ACCEL
1206 if ( menu->HasAccels() )
1207 {
1208 // need to rebuild accell table
1209 RebuildAccelTable();
1210 }
1211 #endif // wxUSE_ACCEL
1212
1213 if (IsAttached())
1214 Refresh();
1215 }
1216
1217 return true;
1218 }
1219
1220 bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
1221 {
1222 WXHMENU submenu = menu ? menu->GetHMenu() : 0;
1223 wxCHECK_MSG( submenu, false, wxT("can't append invalid menu to menubar") );
1224
1225 if ( !wxMenuBarBase::Append(menu, title) )
1226 return false;
1227
1228 m_titles.Add(title);
1229
1230 #if defined(WINCE_WITHOUT_COMMANDBAR)
1231 if (IsAttached())
1232 #else
1233 if (GetHmenu())
1234 #endif
1235 {
1236 #if defined(WINCE_WITHOUT_COMMANDBAR)
1237 if (!GetToolBar())
1238 return false;
1239 TBBUTTON tbButton;
1240 memset(&tbButton, 0, sizeof(TBBUTTON));
1241 tbButton.iBitmap = I_IMAGENONE;
1242 tbButton.fsState = TBSTATE_ENABLED;
1243 tbButton.fsStyle = TBSTYLE_DROPDOWN | TBSTYLE_NO_DROPDOWN_ARROW | TBSTYLE_AUTOSIZE;
1244
1245 size_t pos = GetMenuCount();
1246 HMENU hPopupMenu = (HMENU) menu->GetHMenu() ;
1247 tbButton.dwData = (DWORD)hPopupMenu;
1248 wxString label = wxStripMenuCodes(title);
1249 tbButton.iString = (int) label.wx_str();
1250
1251 tbButton.idCommand = NewControlId();
1252 if (!::SendMessage((HWND) GetToolBar()->GetHWND(), TB_INSERTBUTTON, pos, (LPARAM)&tbButton))
1253 {
1254 wxLogLastError(wxT("TB_INSERTBUTTON"));
1255 return false;
1256 }
1257 #else
1258 if ( !::AppendMenu(GetHmenu(), MF_POPUP | MF_STRING,
1259 (UINT)submenu, title.wx_str()) )
1260 {
1261 wxLogLastError(wxT("AppendMenu"));
1262 }
1263 #endif
1264
1265 #if wxUSE_ACCEL
1266 if ( menu->HasAccels() )
1267 {
1268 // need to rebuild accelerator table
1269 RebuildAccelTable();
1270 }
1271 #endif // wxUSE_ACCEL
1272
1273 if (IsAttached())
1274 Refresh();
1275 }
1276
1277 return true;
1278 }
1279
1280 wxMenu *wxMenuBar::Remove(size_t pos)
1281 {
1282 wxMenu *menu = wxMenuBarBase::Remove(pos);
1283 if ( !menu )
1284 return NULL;
1285
1286 #if defined(WINCE_WITHOUT_COMMANDBAR)
1287 if (IsAttached())
1288 #else
1289 if (GetHmenu())
1290 #endif
1291 {
1292 #if defined(WINCE_WITHOUT_COMMANDBAR)
1293 if (GetToolBar())
1294 {
1295 if (!::SendMessage((HWND) GetToolBar()->GetHWND(), TB_DELETEBUTTON, (UINT) pos, (LPARAM) 0))
1296 {
1297 wxLogLastError(wxT("TB_DELETEBUTTON"));
1298 }
1299 }
1300 #else
1301 if ( !::RemoveMenu(GetHmenu(), (UINT)MSWPositionForWxMenu(menu,pos), MF_BYPOSITION) )
1302 {
1303 wxLogLastError(wxT("RemoveMenu"));
1304 }
1305 #endif
1306
1307 #if wxUSE_ACCEL
1308 if ( menu->HasAccels() )
1309 {
1310 // need to rebuild accell table
1311 RebuildAccelTable();
1312 }
1313 #endif // wxUSE_ACCEL
1314
1315 if (IsAttached())
1316 Refresh();
1317 }
1318
1319 m_titles.RemoveAt(pos);
1320
1321 return menu;
1322 }
1323
1324 #if wxUSE_ACCEL
1325
1326 void wxMenuBar::RebuildAccelTable()
1327 {
1328 // merge the accelerators of all menus into one accel table
1329 size_t nAccelCount = 0;
1330 size_t i, count = GetMenuCount();
1331 wxMenuList::iterator it;
1332 for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
1333 {
1334 nAccelCount += (*it)->GetAccelCount();
1335 }
1336
1337 if ( nAccelCount )
1338 {
1339 wxAcceleratorEntry *accelEntries = new wxAcceleratorEntry[nAccelCount];
1340
1341 nAccelCount = 0;
1342 for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
1343 {
1344 nAccelCount += (*it)->CopyAccels(&accelEntries[nAccelCount]);
1345 }
1346
1347 m_accelTable = wxAcceleratorTable(nAccelCount, accelEntries);
1348
1349 delete [] accelEntries;
1350 }
1351 }
1352
1353 #endif // wxUSE_ACCEL
1354
1355 void wxMenuBar::Attach(wxFrame *frame)
1356 {
1357 wxMenuBarBase::Attach(frame);
1358
1359 #if defined(WINCE_WITH_COMMANDBAR)
1360 if (!m_hMenu)
1361 this->Create();
1362 if (!m_commandBar)
1363 m_commandBar = (WXHWND) CommandBar_Create(wxGetInstance(), (HWND) frame->GetHWND(), NewControlId());
1364 if (m_commandBar)
1365 {
1366 if (m_hMenu)
1367 {
1368 if (!CommandBar_InsertMenubarEx((HWND) m_commandBar, NULL, (LPTSTR) m_hMenu, 0))
1369 {
1370 wxLogLastError(wxT("CommandBar_InsertMenubarEx"));
1371 }
1372 }
1373 }
1374 #endif
1375
1376 #if wxUSE_ACCEL
1377 RebuildAccelTable();
1378 #endif // wxUSE_ACCEL
1379 }
1380
1381 #if defined(WINCE_WITH_COMMANDBAR)
1382 bool wxMenuBar::AddAdornments(long style)
1383 {
1384 if (m_adornmentsAdded || !m_commandBar)
1385 return false;
1386
1387 if (style & wxCLOSE_BOX)
1388 {
1389 if (!CommandBar_AddAdornments((HWND) m_commandBar, 0, 0))
1390 wxLogLastError(wxT("CommandBar_AddAdornments"));
1391 else
1392 return true;
1393 }
1394 return false;
1395 }
1396 #endif
1397
1398 void wxMenuBar::Detach()
1399 {
1400 wxMenuBarBase::Detach();
1401 }
1402
1403 #endif // wxUSE_MENUS
wxWidgets (Impactor)