Fix wxListCtrl::EndEditLabel() which simply didn't work.
[wxWidgets.git] / src / msw / listctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/listctrl.cpp
3 // Purpose: wxListCtrl
4 // Author: Julian Smart
5 // Modified by: Agron Selimaj
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_LISTCTRL
28
29 #include "wx/listctrl.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
33 #include "wx/app.h"
34 #include "wx/intl.h"
35 #include "wx/log.h"
36 #include "wx/settings.h"
37 #include "wx/dcclient.h"
38 #include "wx/textctrl.h"
39 #endif
40
41 #include "wx/imaglist.h"
42 #include "wx/vector.h"
43
44 #include "wx/msw/private.h"
45
46 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
47 #include <ole2.h>
48 #include <shellapi.h>
49 #if _WIN32_WCE < 400
50 #include <aygshell.h>
51 #endif
52 #endif
53
54 // Currently gcc and watcom don't define NMLVFINDITEM, and DMC only defines
55 // it by its old name NM_FINDTIEM.
56 //
57 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(NMLVFINDITEM)
58 #define HAVE_NMLVFINDITEM 1
59 #elif defined(__DMC__) || defined(NM_FINDITEM)
60 #define HAVE_NMLVFINDITEM 1
61 #define NMLVFINDITEM NM_FINDITEM
62 #endif
63
64 // ----------------------------------------------------------------------------
65 // private functions
66 // ----------------------------------------------------------------------------
67
68 // convert our state and mask flags to LV_ITEM constants
69 static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
70
71 // convert wxListItem to LV_ITEM
72 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
73 const wxListItem& info, LV_ITEM& lvItem);
74
75 // convert LV_ITEM to wxListItem
76 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
77 wxListItem& info,
78 /* const */ LV_ITEM& lvItem);
79
80 // convert our wxListItem to LV_COLUMN
81 static void wxConvertToMSWListCol(HWND hwndList,
82 int col,
83 const wxListItem& item,
84 LV_COLUMN& lvCol);
85
86 namespace
87 {
88
89 // replacement for ListView_GetSubItemRect() which provokes warnings like
90 // "the address of 'rc' will always evaluate as 'true'" when used with mingw32
91 // 4.3+
92 //
93 // this function does no error checking on item and subitem parameters, notice
94 // that subitem 0 means the whole item so there is no way to retrieve the
95 // rectangle of the first subitem using this function, in particular notice
96 // that the index is *not* 1-based, in spite of what MSDN says
97 inline bool
98 wxGetListCtrlSubItemRect(HWND hwnd, int item, int subitem, int flags, RECT& rect)
99 {
100 rect.top = subitem;
101 rect.left = flags;
102 return ::SendMessage(hwnd, LVM_GETSUBITEMRECT, item, (LPARAM)&rect) != 0;
103 }
104
105 inline bool
106 wxGetListCtrlItemRect(HWND hwnd, int item, int flags, RECT& rect)
107 {
108 return wxGetListCtrlSubItemRect(hwnd, item, 0, flags, rect);
109 }
110
111 } // anonymous namespace
112
113 // ----------------------------------------------------------------------------
114 // private helper classes
115 // ----------------------------------------------------------------------------
116
117 // We have to handle both fooW and fooA notifications in several cases
118 // because of broken comctl32.dll and/or unicows.dll. This class is used to
119 // convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
120 // LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
121 // by wxConvertToMSWListItem().
122 #if wxUSE_UNICODE
123 #define LV_ITEM_NATIVE LV_ITEMW
124 #define LV_ITEM_OTHER LV_ITEMA
125
126 #define LV_CONV_TO_WX cMB2WX
127 #define LV_CONV_BUF wxMB2WXbuf
128 #else // ANSI
129 #define LV_ITEM_NATIVE LV_ITEMA
130 #define LV_ITEM_OTHER LV_ITEMW
131
132 #define LV_CONV_TO_WX cWC2WX
133 #define LV_CONV_BUF wxWC2WXbuf
134 #endif // Unicode/ANSI
135
136 class wxLV_ITEM
137 {
138 public:
139 // default ctor, use Init() later
140 wxLV_ITEM() { m_buf = NULL; m_pItem = NULL; }
141
142 // init without conversion
143 void Init(LV_ITEM_NATIVE& item)
144 {
145 wxASSERT_MSG( !m_pItem, wxT("Init() called twice?") );
146
147 m_pItem = &item;
148 }
149
150 // init with conversion
151 void Init(const LV_ITEM_OTHER& item)
152 {
153 // avoid unnecessary dynamic memory allocation, jjust make m_pItem
154 // point to our own m_item
155
156 // memcpy() can't work if the struct sizes are different
157 wxCOMPILE_TIME_ASSERT( sizeof(LV_ITEM_OTHER) == sizeof(LV_ITEM_NATIVE),
158 CodeCantWorkIfDiffSizes);
159
160 memcpy(&m_item, &item, sizeof(LV_ITEM_NATIVE));
161
162 // convert text from ANSI to Unicod if necessary
163 if ( (item.mask & LVIF_TEXT) && item.pszText )
164 {
165 m_buf = new LV_CONV_BUF(wxConvLocal.LV_CONV_TO_WX(item.pszText));
166 m_item.pszText = (wxChar *)m_buf->data();
167 }
168 }
169
170 // ctor without conversion
171 wxLV_ITEM(LV_ITEM_NATIVE& item) : m_buf(NULL), m_pItem(&item) { }
172
173 // ctor with conversion
174 wxLV_ITEM(LV_ITEM_OTHER& item) : m_buf(NULL)
175 {
176 Init(item);
177 }
178
179 ~wxLV_ITEM() { delete m_buf; }
180
181 // conversion to the real LV_ITEM
182 operator LV_ITEM_NATIVE&() const { return *m_pItem; }
183
184 private:
185 LV_CONV_BUF *m_buf;
186
187 LV_ITEM_NATIVE *m_pItem;
188 LV_ITEM_NATIVE m_item;
189
190 wxDECLARE_NO_COPY_CLASS(wxLV_ITEM);
191 };
192
193 ///////////////////////////////////////////////////////
194 // Problem:
195 // The MSW version had problems with SetTextColour() et
196 // al as the wxListItemAttr's were stored keyed on the
197 // item index. If a item was inserted anywhere but the end
198 // of the list the text attributes (colour etc) for
199 // the following items were out of sync.
200 //
201 // Solution:
202 // Under MSW the only way to associate data with a List
203 // item independent of its position in the list is to
204 // store a pointer to it in its lParam attribute. However
205 // user programs are already using this (via the
206 // SetItemData() GetItemData() calls).
207 //
208 // However what we can do is store a pointer to a
209 // structure which contains the attributes we want *and*
210 // a lParam -- and this is what wxMSWListItemData does.
211 //
212 // To conserve memory, a wxMSWListItemData is
213 // only allocated for a LV_ITEM if text attributes or
214 // user data(lparam) are being set.
215 class wxMSWListItemData
216 {
217 public:
218 wxMSWListItemData() : attr(NULL), lParam(0) {}
219 ~wxMSWListItemData() { delete attr; }
220
221 wxListItemAttr *attr;
222 LPARAM lParam; // real user data
223
224 wxDECLARE_NO_COPY_CLASS(wxMSWListItemData);
225 };
226
227 #if wxUSE_EXTENDED_RTTI
228 WX_DEFINE_FLAGS( wxListCtrlStyle )
229
230 wxBEGIN_FLAGS( wxListCtrlStyle )
231 // new style border flags, we put them first to
232 // use them for streaming out
233 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
234 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
235 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
236 wxFLAGS_MEMBER(wxBORDER_RAISED)
237 wxFLAGS_MEMBER(wxBORDER_STATIC)
238 wxFLAGS_MEMBER(wxBORDER_NONE)
239
240 // old style border flags
241 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
242 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
243 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
244 wxFLAGS_MEMBER(wxRAISED_BORDER)
245 wxFLAGS_MEMBER(wxSTATIC_BORDER)
246 wxFLAGS_MEMBER(wxBORDER)
247
248 // standard window styles
249 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
250 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
251 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
252 wxFLAGS_MEMBER(wxWANTS_CHARS)
253 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
254 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
255 wxFLAGS_MEMBER(wxVSCROLL)
256 wxFLAGS_MEMBER(wxHSCROLL)
257
258 wxFLAGS_MEMBER(wxLC_LIST)
259 wxFLAGS_MEMBER(wxLC_REPORT)
260 wxFLAGS_MEMBER(wxLC_ICON)
261 wxFLAGS_MEMBER(wxLC_SMALL_ICON)
262 wxFLAGS_MEMBER(wxLC_ALIGN_TOP)
263 wxFLAGS_MEMBER(wxLC_ALIGN_LEFT)
264 wxFLAGS_MEMBER(wxLC_AUTOARRANGE)
265 wxFLAGS_MEMBER(wxLC_USER_TEXT)
266 wxFLAGS_MEMBER(wxLC_EDIT_LABELS)
267 wxFLAGS_MEMBER(wxLC_NO_HEADER)
268 wxFLAGS_MEMBER(wxLC_SINGLE_SEL)
269 wxFLAGS_MEMBER(wxLC_SORT_ASCENDING)
270 wxFLAGS_MEMBER(wxLC_SORT_DESCENDING)
271 wxFLAGS_MEMBER(wxLC_VIRTUAL)
272
273 wxEND_FLAGS( wxListCtrlStyle )
274
275 IMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl,"wx/listctrl.h")
276
277 wxBEGIN_PROPERTIES_TABLE(wxListCtrl)
278 wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
279
280 wxPROPERTY_FLAGS( WindowStyle , wxListCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
281 wxEND_PROPERTIES_TABLE()
282
283 wxBEGIN_HANDLERS_TABLE(wxListCtrl)
284 wxEND_HANDLERS_TABLE()
285
286 wxCONSTRUCTOR_5( wxListCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
287
288 /*
289 TODO : Expose more information of a list's layout etc. via appropriate objects (a la NotebookPageInfo)
290 */
291 #else
292 IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
293 #endif
294
295 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
296 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
297
298 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
299
300 BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
301 EVT_PAINT(wxListCtrl::OnPaint)
302 END_EVENT_TABLE()
303
304 // ============================================================================
305 // implementation
306 // ============================================================================
307
308 // ----------------------------------------------------------------------------
309 // wxListCtrl construction
310 // ----------------------------------------------------------------------------
311
312 void wxListCtrl::Init()
313 {
314 m_imageListNormal =
315 m_imageListSmall =
316 m_imageListState = NULL;
317 m_ownsImageListNormal =
318 m_ownsImageListSmall =
319 m_ownsImageListState = false;
320
321 m_colCount = 0;
322 m_count = 0;
323 m_textCtrl = NULL;
324
325 m_hasAnyAttr = false;
326 }
327
328 bool wxListCtrl::Create(wxWindow *parent,
329 wxWindowID id,
330 const wxPoint& pos,
331 const wxSize& size,
332 long style,
333 const wxValidator& validator,
334 const wxString& name)
335 {
336 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
337 return false;
338
339 if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) )
340 return false;
341
342 // explicitly say that we want to use Unicode because otherwise we get ANSI
343 // versions of _some_ messages (notably LVN_GETDISPINFOA) in MSLU build
344 wxSetCCUnicodeFormat(GetHwnd());
345
346 // We must set the default text colour to the system/theme color, otherwise
347 // GetTextColour will always return black
348 SetTextColour(GetDefaultAttributes().colFg);
349
350 if ( InReportView() )
351 MSWSetExListStyles();
352
353 return true;
354 }
355
356 void wxListCtrl::MSWSetExListStyles()
357 {
358 // for comctl32.dll v 4.70+ we want to have some non default extended
359 // styles because it's prettier (and also because wxGTK does it like this)
360 if ( wxApp::GetComCtl32Version() >= 470 )
361 {
362 ::SendMessage
363 (
364 GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE, 0,
365 // LVS_EX_LABELTIP shouldn't be used under Windows CE where it's
366 // not defined in the SDK headers
367 #ifdef LVS_EX_LABELTIP
368 LVS_EX_LABELTIP |
369 #endif
370 LVS_EX_FULLROWSELECT |
371 LVS_EX_SUBITEMIMAGES |
372 // normally this should be governed by a style as it's probably not
373 // always appropriate, but we don't have any free styles left and
374 // it seems better to enable it by default than disable
375 LVS_EX_HEADERDRAGDROP
376 );
377 }
378 }
379
380 WXDWORD wxListCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
381 {
382 WXDWORD wstyle = wxControl::MSWGetStyle(style, exstyle);
383
384 wstyle |= LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
385
386 #if wxDEBUG_LEVEL
387 size_t nModes = 0;
388
389 #define MAP_MODE_STYLE(wx, ms) \
390 if ( style & (wx) ) { wstyle |= (ms); nModes++; }
391 #else // !wxDEBUG_LEVEL
392 #define MAP_MODE_STYLE(wx, ms) \
393 if ( style & (wx) ) wstyle |= (ms);
394 #endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
395
396 MAP_MODE_STYLE(wxLC_ICON, LVS_ICON)
397 MAP_MODE_STYLE(wxLC_SMALL_ICON, LVS_SMALLICON)
398 MAP_MODE_STYLE(wxLC_LIST, LVS_LIST)
399 MAP_MODE_STYLE(wxLC_REPORT, LVS_REPORT)
400
401 wxASSERT_MSG( nModes == 1,
402 wxT("wxListCtrl style should have exactly one mode bit set") );
403
404 #undef MAP_MODE_STYLE
405
406 if ( style & wxLC_ALIGN_LEFT )
407 wstyle |= LVS_ALIGNLEFT;
408
409 if ( style & wxLC_ALIGN_TOP )
410 wstyle |= LVS_ALIGNTOP;
411
412 if ( style & wxLC_AUTOARRANGE )
413 wstyle |= LVS_AUTOARRANGE;
414
415 if ( style & wxLC_NO_SORT_HEADER )
416 wstyle |= LVS_NOSORTHEADER;
417
418 if ( style & wxLC_NO_HEADER )
419 wstyle |= LVS_NOCOLUMNHEADER;
420
421 if ( style & wxLC_EDIT_LABELS )
422 wstyle |= LVS_EDITLABELS;
423
424 if ( style & wxLC_SINGLE_SEL )
425 wstyle |= LVS_SINGLESEL;
426
427 if ( style & wxLC_SORT_ASCENDING )
428 {
429 wstyle |= LVS_SORTASCENDING;
430
431 wxASSERT_MSG( !(style & wxLC_SORT_DESCENDING),
432 wxT("can't sort in ascending and descending orders at once") );
433 }
434 else if ( style & wxLC_SORT_DESCENDING )
435 wstyle |= LVS_SORTDESCENDING;
436
437 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
438 if ( style & wxLC_VIRTUAL )
439 {
440 int ver = wxApp::GetComCtl32Version();
441 if ( ver < 470 )
442 {
443 wxLogWarning(_("Please install a newer version of comctl32.dll\n(at least version 4.70 is required but you have %d.%02d)\nor this program won't operate correctly."),
444 ver / 100, ver % 100);
445 }
446
447 wstyle |= LVS_OWNERDATA;
448 }
449 #endif // ancient cygwin
450
451 return wstyle;
452 }
453
454 void wxListCtrl::UpdateStyle()
455 {
456 if ( GetHwnd() )
457 {
458 // The new window view style
459 DWORD dwStyleNew = MSWGetStyle(m_windowStyle, NULL);
460
461 // some styles are not returned by MSWGetStyle()
462 if ( IsShown() )
463 dwStyleNew |= WS_VISIBLE;
464
465 // Get the current window style.
466 DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
467
468 // we don't have wxVSCROLL style, but the list control may have it,
469 // don't change it then
470 dwStyleNew |= dwStyleOld & (WS_HSCROLL | WS_VSCROLL);
471
472 // Only set the window style if the view bits have changed.
473 if ( dwStyleOld != dwStyleNew )
474 {
475 ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
476
477 // if we switched to the report view, set the extended styles for
478 // it too
479 if ( !(dwStyleOld & LVS_REPORT) && (dwStyleNew & LVS_REPORT) )
480 MSWSetExListStyles();
481 }
482 }
483 }
484
485 void wxListCtrl::FreeAllInternalData()
486 {
487 const unsigned count = m_internalData.size();
488 for ( unsigned n = 0; n < count; n++ )
489 delete m_internalData[n];
490
491 m_internalData.clear();
492 }
493
494 void wxListCtrl::DeleteEditControl()
495 {
496 if ( m_textCtrl )
497 {
498 m_textCtrl->UnsubclassWin();
499 m_textCtrl->SetHWND(0);
500 delete m_textCtrl;
501 m_textCtrl = NULL;
502 }
503 }
504
505 wxListCtrl::~wxListCtrl()
506 {
507 FreeAllInternalData();
508
509 DeleteEditControl();
510
511 if (m_ownsImageListNormal)
512 delete m_imageListNormal;
513 if (m_ownsImageListSmall)
514 delete m_imageListSmall;
515 if (m_ownsImageListState)
516 delete m_imageListState;
517 }
518
519 // ----------------------------------------------------------------------------
520 // set/get/change style
521 // ----------------------------------------------------------------------------
522
523 // Add or remove a single window style
524 void wxListCtrl::SetSingleStyle(long style, bool add)
525 {
526 long flag = GetWindowStyleFlag();
527
528 // Get rid of conflicting styles
529 if ( add )
530 {
531 if ( style & wxLC_MASK_TYPE)
532 flag = flag & ~wxLC_MASK_TYPE;
533 if ( style & wxLC_MASK_ALIGN )
534 flag = flag & ~wxLC_MASK_ALIGN;
535 if ( style & wxLC_MASK_SORT )
536 flag = flag & ~wxLC_MASK_SORT;
537 }
538
539 if ( add )
540 flag |= style;
541 else
542 flag &= ~style;
543
544 SetWindowStyleFlag(flag);
545 }
546
547 // Set the whole window style
548 void wxListCtrl::SetWindowStyleFlag(long flag)
549 {
550 if ( flag != m_windowStyle )
551 {
552 wxControl::SetWindowStyleFlag(flag);
553
554 UpdateStyle();
555
556 Refresh();
557 }
558 }
559
560 // ----------------------------------------------------------------------------
561 // accessors
562 // ----------------------------------------------------------------------------
563
564 /* static */ wxVisualAttributes
565 wxListCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
566 {
567 wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant);
568
569 // common controls have their own default font
570 attrs.font = wxGetCCDefaultFont();
571
572 return attrs;
573 }
574
575 // Sets the foreground, i.e. text, colour
576 bool wxListCtrl::SetForegroundColour(const wxColour& col)
577 {
578 if ( !wxWindow::SetForegroundColour(col) )
579 return false;
580
581 ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
582
583 return true;
584 }
585
586 // Sets the background colour
587 bool wxListCtrl::SetBackgroundColour(const wxColour& col)
588 {
589 if ( !wxWindow::SetBackgroundColour(col) )
590 return false;
591
592 // we set the same colour for both the "empty" background and the items
593 // background
594 COLORREF color = wxColourToRGB(col);
595 ListView_SetBkColor(GetHwnd(), color);
596 ListView_SetTextBkColor(GetHwnd(), color);
597
598 return true;
599 }
600
601 // Gets information about this column
602 bool wxListCtrl::GetColumn(int col, wxListItem& item) const
603 {
604 LV_COLUMN lvCol;
605 wxZeroMemory(lvCol);
606
607 lvCol.mask = LVCF_WIDTH;
608
609 if ( item.m_mask & wxLIST_MASK_TEXT )
610 {
611 lvCol.mask |= LVCF_TEXT;
612 lvCol.pszText = new wxChar[513];
613 lvCol.cchTextMax = 512;
614 }
615
616 if ( item.m_mask & wxLIST_MASK_FORMAT )
617 {
618 lvCol.mask |= LVCF_FMT;
619 }
620
621 if ( item.m_mask & wxLIST_MASK_IMAGE )
622 {
623 lvCol.mask |= LVCF_IMAGE;
624 }
625
626 bool success = ListView_GetColumn(GetHwnd(), col, &lvCol) != 0;
627
628 // item.m_subItem = lvCol.iSubItem;
629 item.m_width = lvCol.cx;
630
631 if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
632 {
633 item.m_text = lvCol.pszText;
634 delete[] lvCol.pszText;
635 }
636
637 if ( item.m_mask & wxLIST_MASK_FORMAT )
638 {
639 switch (lvCol.fmt & LVCFMT_JUSTIFYMASK) {
640 case LVCFMT_LEFT:
641 item.m_format = wxLIST_FORMAT_LEFT;
642 break;
643 case LVCFMT_RIGHT:
644 item.m_format = wxLIST_FORMAT_RIGHT;
645 break;
646 case LVCFMT_CENTER:
647 item.m_format = wxLIST_FORMAT_CENTRE;
648 break;
649 default:
650 item.m_format = -1; // Unknown?
651 break;
652 }
653 }
654
655 // the column images were not supported in older versions but how to check
656 // for this? we can't use _WIN32_IE because we always define it to a very
657 // high value, so see if another symbol which is only defined starting from
658 // comctl32.dll 4.70 is available
659 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
660 if ( item.m_mask & wxLIST_MASK_IMAGE )
661 {
662 item.m_image = lvCol.iImage;
663 }
664 #endif // LVCOLUMN::iImage exists
665
666 return success;
667 }
668
669 // Sets information about this column
670 bool wxListCtrl::SetColumn(int col, const wxListItem& item)
671 {
672 LV_COLUMN lvCol;
673 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
674
675 return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
676 }
677
678 // Gets the column width
679 int wxListCtrl::GetColumnWidth(int col) const
680 {
681 return ListView_GetColumnWidth(GetHwnd(), col);
682 }
683
684 // Sets the column width
685 bool wxListCtrl::SetColumnWidth(int col, int width)
686 {
687 if ( m_windowStyle & wxLC_LIST )
688 col = 0;
689
690 if ( width == wxLIST_AUTOSIZE)
691 width = LVSCW_AUTOSIZE;
692 else if ( width == wxLIST_AUTOSIZE_USEHEADER)
693 width = LVSCW_AUTOSIZE_USEHEADER;
694
695 return ListView_SetColumnWidth(GetHwnd(), col, width) != 0;
696 }
697
698 // ----------------------------------------------------------------------------
699 // columns order
700 // ----------------------------------------------------------------------------
701
702 int wxListCtrl::GetColumnIndexFromOrder(int order) const
703 {
704 const int numCols = GetColumnCount();
705 wxCHECK_MSG( order >= 0 && order < numCols, -1,
706 wxT("Column position out of bounds") );
707
708 wxArrayInt indexArray(numCols);
709 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &indexArray[0]) )
710 return -1;
711
712 return indexArray[order];
713 }
714
715 int wxListCtrl::GetColumnOrder(int col) const
716 {
717 const int numCols = GetColumnCount();
718 wxASSERT_MSG( col >= 0 && col < numCols, wxT("Column index out of bounds") );
719
720 wxArrayInt indexArray(numCols);
721 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &indexArray[0]) )
722 return -1;
723
724 for ( int pos = 0; pos < numCols; pos++ )
725 {
726 if ( indexArray[pos] == col )
727 return pos;
728 }
729
730 wxFAIL_MSG( wxT("no column with with given order?") );
731
732 return -1;
733 }
734
735 // Gets the column order for all columns
736 wxArrayInt wxListCtrl::GetColumnsOrder() const
737 {
738 const int numCols = GetColumnCount();
739
740 wxArrayInt orders(numCols);
741 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &orders[0]) )
742 orders.clear();
743
744 return orders;
745 }
746
747 // Sets the column order for all columns
748 bool wxListCtrl::SetColumnsOrder(const wxArrayInt& orders)
749 {
750 const int numCols = GetColumnCount();
751
752 wxCHECK_MSG( orders.size() == (size_t)numCols, false,
753 wxT("wrong number of elements in column orders array") );
754
755 return ListView_SetColumnOrderArray(GetHwnd(), numCols, &orders[0]) != 0;
756 }
757
758
759 // Gets the number of items that can fit vertically in the
760 // visible area of the list control (list or report view)
761 // or the total number of items in the list control (icon
762 // or small icon view)
763 int wxListCtrl::GetCountPerPage() const
764 {
765 return ListView_GetCountPerPage(GetHwnd());
766 }
767
768 // Gets the edit control for editing labels.
769 wxTextCtrl* wxListCtrl::GetEditControl() const
770 {
771 // first check corresponds to the case when the label editing was started
772 // by user and hence m_textCtrl wasn't created by EditLabel() at all, while
773 // the second case corresponds to us being called from inside EditLabel()
774 // (e.g. from a user wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT handler): in this
775 // case EditLabel() did create the control but it didn't have an HWND to
776 // initialize it with yet
777 if ( !m_textCtrl || !m_textCtrl->GetHWND() )
778 {
779 HWND hwndEdit = ListView_GetEditControl(GetHwnd());
780 if ( hwndEdit )
781 {
782 wxListCtrl * const self = const_cast<wxListCtrl *>(this);
783
784 if ( !m_textCtrl )
785 self->m_textCtrl = new wxTextCtrl;
786 self->InitEditControl((WXHWND)hwndEdit);
787 }
788 }
789
790 return m_textCtrl;
791 }
792
793 // Gets information about the item
794 bool wxListCtrl::GetItem(wxListItem& info) const
795 {
796 LV_ITEM lvItem;
797 wxZeroMemory(lvItem);
798
799 lvItem.iItem = info.m_itemId;
800 lvItem.iSubItem = info.m_col;
801
802 if ( info.m_mask & wxLIST_MASK_TEXT )
803 {
804 lvItem.mask |= LVIF_TEXT;
805 lvItem.pszText = new wxChar[513];
806 lvItem.cchTextMax = 512;
807 }
808 else
809 {
810 lvItem.pszText = NULL;
811 }
812
813 if (info.m_mask & wxLIST_MASK_DATA)
814 lvItem.mask |= LVIF_PARAM;
815
816 if (info.m_mask & wxLIST_MASK_IMAGE)
817 lvItem.mask |= LVIF_IMAGE;
818
819 if ( info.m_mask & wxLIST_MASK_STATE )
820 {
821 lvItem.mask |= LVIF_STATE;
822 wxConvertToMSWFlags(0, info.m_stateMask, lvItem);
823 }
824
825 bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
826 if ( !success )
827 {
828 wxLogError(_("Couldn't retrieve information about list control item %d."),
829 lvItem.iItem);
830 }
831 else
832 {
833 // give NULL as hwnd as we already have everything we need
834 wxConvertFromMSWListItem(NULL, info, lvItem);
835 }
836
837 if (lvItem.pszText)
838 delete[] lvItem.pszText;
839
840 return success;
841 }
842
843 // Sets information about the item
844 bool wxListCtrl::SetItem(wxListItem& info)
845 {
846 const long id = info.GetId();
847 wxCHECK_MSG( id >= 0 && id < GetItemCount(), false,
848 wxT("invalid item index in SetItem") );
849
850 LV_ITEM item;
851 wxConvertToMSWListItem(this, info, item);
852
853 // we never update the lParam if it contains our pointer
854 // to the wxMSWListItemData structure
855 item.mask &= ~LVIF_PARAM;
856
857 // check if setting attributes or lParam
858 if ( info.HasAttributes() || (info.m_mask & wxLIST_MASK_DATA) )
859 {
860 // get internal item data
861 wxMSWListItemData *data = MSWGetItemData(id);
862
863 if ( !data )
864 {
865 // need to allocate the internal data object
866 data = new wxMSWListItemData;
867 m_internalData.push_back(data);
868 item.lParam = (LPARAM) data;
869 item.mask |= LVIF_PARAM;
870 }
871
872
873 // user data
874 if ( info.m_mask & wxLIST_MASK_DATA )
875 data->lParam = info.m_data;
876
877 // attributes
878 if ( info.HasAttributes() )
879 {
880 const wxListItemAttr& attrNew = *info.GetAttributes();
881
882 // don't overwrite the already set attributes if we have them
883 if ( data->attr )
884 data->attr->AssignFrom(attrNew);
885 else
886 data->attr = new wxListItemAttr(attrNew);
887 }
888 }
889
890
891 // we could be changing only the attribute in which case we don't need to
892 // call ListView_SetItem() at all
893 if ( item.mask )
894 {
895 if ( !ListView_SetItem(GetHwnd(), &item) )
896 {
897 wxLogDebug(wxT("ListView_SetItem() failed"));
898
899 return false;
900 }
901 }
902
903 // we need to update the item immediately to show the new image
904 bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
905
906 // check whether it has any custom attributes
907 if ( info.HasAttributes() )
908 {
909 m_hasAnyAttr = true;
910
911 // if the colour has changed, we must redraw the item
912 updateNow = true;
913 }
914
915 if ( updateNow )
916 {
917 // we need this to make the change visible right now
918 RefreshItem(item.iItem);
919 }
920
921 return true;
922 }
923
924 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
925 {
926 wxListItem info;
927 info.m_text = label;
928 info.m_mask = wxLIST_MASK_TEXT;
929 info.m_itemId = index;
930 info.m_col = col;
931 if ( imageId > -1 )
932 {
933 info.m_image = imageId;
934 info.m_mask |= wxLIST_MASK_IMAGE;
935 }
936 return SetItem(info);
937 }
938
939
940 // Gets the item state
941 int wxListCtrl::GetItemState(long item, long stateMask) const
942 {
943 wxListItem info;
944
945 info.m_mask = wxLIST_MASK_STATE;
946 info.m_stateMask = stateMask;
947 info.m_itemId = item;
948
949 if (!GetItem(info))
950 return 0;
951
952 return info.m_state;
953 }
954
955 // Sets the item state
956 bool wxListCtrl::SetItemState(long item, long state, long stateMask)
957 {
958 // NB: don't use SetItem() here as it doesn't work with the virtual list
959 // controls
960 LV_ITEM lvItem;
961 wxZeroMemory(lvItem);
962
963 wxConvertToMSWFlags(state, stateMask, lvItem);
964
965 const bool changingFocus = (stateMask & wxLIST_STATE_FOCUSED) &&
966 (state & wxLIST_STATE_FOCUSED);
967
968 // for the virtual list controls we need to refresh the previously focused
969 // item manually when changing focus without changing selection
970 // programmatically because otherwise it keeps its focus rectangle until
971 // next repaint (yet another comctl32 bug)
972 long focusOld;
973 if ( IsVirtual() && changingFocus )
974 {
975 focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
976 }
977 else
978 {
979 focusOld = -1;
980 }
981
982 if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
983 (WPARAM)item, (LPARAM)&lvItem) )
984 {
985 wxLogLastError(wxT("ListView_SetItemState"));
986
987 return false;
988 }
989
990 if ( focusOld != -1 )
991 {
992 // no need to refresh the item if it was previously selected, it would
993 // only result in annoying flicker
994 if ( !(GetItemState(focusOld,
995 wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
996 {
997 RefreshItem(focusOld);
998 }
999 }
1000
1001 // we expect the selection anchor, i.e. the item from which multiple
1002 // selection (such as performed with e.g. Shift-arrows) starts, to be the
1003 // same as the currently focused item but the native control doesn't update
1004 // it when we change focus and leaves at the last item it set itself focus
1005 // to, so do it explicitly
1006 if ( changingFocus && !HasFlag(wxLC_SINGLE_SEL) )
1007 {
1008 ListView_SetSelectionMark(GetHwnd(), item);
1009 }
1010
1011 return true;
1012 }
1013
1014 // Sets the item image
1015 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
1016 {
1017 return SetItemColumnImage(item, 0, image);
1018 }
1019
1020 // Sets the item image
1021 bool wxListCtrl::SetItemColumnImage(long item, long column, int image)
1022 {
1023 wxListItem info;
1024
1025 info.m_mask = wxLIST_MASK_IMAGE;
1026 info.m_image = image;
1027 info.m_itemId = item;
1028 info.m_col = column;
1029
1030 return SetItem(info);
1031 }
1032
1033 // Gets the item text
1034 wxString wxListCtrl::GetItemText(long item, int col) const
1035 {
1036 wxListItem info;
1037
1038 info.m_mask = wxLIST_MASK_TEXT;
1039 info.m_itemId = item;
1040 info.m_col = col;
1041
1042 if (!GetItem(info))
1043 return wxEmptyString;
1044 return info.m_text;
1045 }
1046
1047 // Sets the item text
1048 void wxListCtrl::SetItemText(long item, const wxString& str)
1049 {
1050 wxListItem info;
1051
1052 info.m_mask = wxLIST_MASK_TEXT;
1053 info.m_itemId = item;
1054 info.m_text = str;
1055
1056 SetItem(info);
1057 }
1058
1059 // Gets the internal item data
1060 wxMSWListItemData *wxListCtrl::MSWGetItemData(long itemId) const
1061 {
1062 LV_ITEM it;
1063 it.mask = LVIF_PARAM;
1064 it.iItem = itemId;
1065
1066 if ( !ListView_GetItem(GetHwnd(), &it) )
1067 return NULL;
1068
1069 return (wxMSWListItemData *) it.lParam;
1070 }
1071
1072 // Gets the item data
1073 wxUIntPtr wxListCtrl::GetItemData(long item) const
1074 {
1075 wxListItem info;
1076
1077 info.m_mask = wxLIST_MASK_DATA;
1078 info.m_itemId = item;
1079
1080 if (!GetItem(info))
1081 return 0;
1082 return info.m_data;
1083 }
1084
1085 // Sets the item data
1086 bool wxListCtrl::SetItemPtrData(long item, wxUIntPtr data)
1087 {
1088 wxListItem info;
1089
1090 info.m_mask = wxLIST_MASK_DATA;
1091 info.m_itemId = item;
1092 info.m_data = data;
1093
1094 return SetItem(info);
1095 }
1096
1097 wxRect wxListCtrl::GetViewRect() const
1098 {
1099 wxRect rect;
1100
1101 // ListView_GetViewRect() can only be used in icon and small icon views
1102 // (this is documented in MSDN and, indeed, it returns bogus results in
1103 // report view, at least with comctl32.dll v6 under Windows 2003)
1104 if ( HasFlag(wxLC_ICON | wxLC_SMALL_ICON) )
1105 {
1106 RECT rc;
1107 if ( !ListView_GetViewRect(GetHwnd(), &rc) )
1108 {
1109 wxLogDebug(wxT("ListView_GetViewRect() failed."));
1110
1111 wxZeroMemory(rc);
1112 }
1113
1114 wxCopyRECTToRect(rc, rect);
1115 }
1116 else if ( HasFlag(wxLC_REPORT) )
1117 {
1118 const long count = GetItemCount();
1119 if ( count )
1120 {
1121 GetItemRect(wxMin(GetTopItem() + GetCountPerPage(), count - 1), rect);
1122
1123 // extend the rectangle to start at the top (we include the column
1124 // headers, if any, for compatibility with the generic version)
1125 rect.height += rect.y;
1126 rect.y = 0;
1127 }
1128 }
1129 else
1130 {
1131 wxFAIL_MSG( wxT("not implemented in this mode") );
1132 }
1133
1134 return rect;
1135 }
1136
1137 // Gets the item rectangle
1138 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
1139 {
1140 return GetSubItemRect( item, wxLIST_GETSUBITEMRECT_WHOLEITEM, rect, code) ;
1141 }
1142
1143 bool wxListCtrl::GetSubItemRect(long item, long subItem, wxRect& rect, int code) const
1144 {
1145 // ListView_GetSubItemRect() doesn't do subItem error checking and returns
1146 // true even for the out of range values of it (even if the results are
1147 // completely bogus in this case), so we check item validity ourselves
1148 wxCHECK_MSG( subItem == wxLIST_GETSUBITEMRECT_WHOLEITEM ||
1149 (subItem >= 0 && subItem < GetColumnCount()),
1150 false, wxT("invalid sub item index") );
1151
1152 // use wxCHECK_MSG against "item" too, for coherency with the generic implementation:
1153 wxCHECK_MSG( item >= 0 && item < GetItemCount(), false,
1154 wxT("invalid item in GetSubItemRect") );
1155
1156 int codeWin;
1157 if ( code == wxLIST_RECT_BOUNDS )
1158 codeWin = LVIR_BOUNDS;
1159 else if ( code == wxLIST_RECT_ICON )
1160 codeWin = LVIR_ICON;
1161 else if ( code == wxLIST_RECT_LABEL )
1162 codeWin = LVIR_LABEL;
1163 else
1164 {
1165 wxFAIL_MSG( wxT("incorrect code in GetItemRect() / GetSubItemRect()") );
1166 codeWin = LVIR_BOUNDS;
1167 }
1168
1169 RECT rectWin;
1170 if ( !wxGetListCtrlSubItemRect
1171 (
1172 GetHwnd(),
1173 item,
1174 subItem == wxLIST_GETSUBITEMRECT_WHOLEITEM ? 0 : subItem,
1175 codeWin,
1176 rectWin
1177 ) )
1178 {
1179 return false;
1180 }
1181
1182 wxCopyRECTToRect(rectWin, rect);
1183
1184 // there is no way to retrieve the first sub item bounding rectangle using
1185 // wxGetListCtrlSubItemRect() as 0 means the whole item, so we need to
1186 // truncate it at first column ourselves
1187 if ( subItem == 0 && code == wxLIST_RECT_BOUNDS )
1188 rect.width = GetColumnWidth(0);
1189
1190 return true;
1191 }
1192
1193
1194
1195
1196 // Gets the item position
1197 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
1198 {
1199 POINT pt;
1200
1201 bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
1202
1203 pos.x = pt.x; pos.y = pt.y;
1204 return success;
1205 }
1206
1207 // Sets the item position.
1208 bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
1209 {
1210 return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
1211 }
1212
1213 // Gets the number of items in the list control
1214 int wxListCtrl::GetItemCount() const
1215 {
1216 return m_count;
1217 }
1218
1219 wxSize wxListCtrl::GetItemSpacing() const
1220 {
1221 const int spacing = ListView_GetItemSpacing(GetHwnd(), (BOOL)HasFlag(wxLC_SMALL_ICON));
1222
1223 return wxSize(LOWORD(spacing), HIWORD(spacing));
1224 }
1225
1226 #if WXWIN_COMPATIBILITY_2_6
1227
1228 int wxListCtrl::GetItemSpacing(bool isSmall) const
1229 {
1230 return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
1231 }
1232
1233 #endif // WXWIN_COMPATIBILITY_2_6
1234
1235 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
1236 {
1237 wxListItem info;
1238 info.m_itemId = item;
1239 info.SetTextColour( col );
1240 SetItem( info );
1241 }
1242
1243 wxColour wxListCtrl::GetItemTextColour( long item ) const
1244 {
1245 wxColour col;
1246 wxMSWListItemData *data = MSWGetItemData(item);
1247 if ( data && data->attr )
1248 col = data->attr->GetTextColour();
1249
1250 return col;
1251 }
1252
1253 void wxListCtrl::SetItemBackgroundColour( long item, const wxColour &col )
1254 {
1255 wxListItem info;
1256 info.m_itemId = item;
1257 info.SetBackgroundColour( col );
1258 SetItem( info );
1259 }
1260
1261 wxColour wxListCtrl::GetItemBackgroundColour( long item ) const
1262 {
1263 wxColour col;
1264 wxMSWListItemData *data = MSWGetItemData(item);
1265 if ( data && data->attr )
1266 col = data->attr->GetBackgroundColour();
1267
1268 return col;
1269 }
1270
1271 void wxListCtrl::SetItemFont( long item, const wxFont &f )
1272 {
1273 wxListItem info;
1274 info.m_itemId = item;
1275 info.SetFont( f );
1276 SetItem( info );
1277 }
1278
1279 wxFont wxListCtrl::GetItemFont( long item ) const
1280 {
1281 wxFont f;
1282 wxMSWListItemData *data = MSWGetItemData(item);
1283 if ( data && data->attr )
1284 f = data->attr->GetFont();
1285
1286 return f;
1287 }
1288
1289 // Gets the number of selected items in the list control
1290 int wxListCtrl::GetSelectedItemCount() const
1291 {
1292 return ListView_GetSelectedCount(GetHwnd());
1293 }
1294
1295 // Gets the text colour of the listview
1296 wxColour wxListCtrl::GetTextColour() const
1297 {
1298 COLORREF ref = ListView_GetTextColor(GetHwnd());
1299 wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
1300 return col;
1301 }
1302
1303 // Sets the text colour of the listview
1304 void wxListCtrl::SetTextColour(const wxColour& col)
1305 {
1306 ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
1307 }
1308
1309 // Gets the index of the topmost visible item when in
1310 // list or report view
1311 long wxListCtrl::GetTopItem() const
1312 {
1313 return (long) ListView_GetTopIndex(GetHwnd());
1314 }
1315
1316 // Searches for an item, starting from 'item'.
1317 // 'geometry' is one of
1318 // wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
1319 // 'state' is a state bit flag, one or more of
1320 // wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
1321 // item can be -1 to find the first item that matches the
1322 // specified flags.
1323 // Returns the item or -1 if unsuccessful.
1324 long wxListCtrl::GetNextItem(long item, int geom, int state) const
1325 {
1326 long flags = 0;
1327
1328 if ( geom == wxLIST_NEXT_ABOVE )
1329 flags |= LVNI_ABOVE;
1330 if ( geom == wxLIST_NEXT_ALL )
1331 flags |= LVNI_ALL;
1332 if ( geom == wxLIST_NEXT_BELOW )
1333 flags |= LVNI_BELOW;
1334 if ( geom == wxLIST_NEXT_LEFT )
1335 flags |= LVNI_TOLEFT;
1336 if ( geom == wxLIST_NEXT_RIGHT )
1337 flags |= LVNI_TORIGHT;
1338
1339 if ( state & wxLIST_STATE_CUT )
1340 flags |= LVNI_CUT;
1341 if ( state & wxLIST_STATE_DROPHILITED )
1342 flags |= LVNI_DROPHILITED;
1343 if ( state & wxLIST_STATE_FOCUSED )
1344 flags |= LVNI_FOCUSED;
1345 if ( state & wxLIST_STATE_SELECTED )
1346 flags |= LVNI_SELECTED;
1347
1348 return (long) ListView_GetNextItem(GetHwnd(), item, flags);
1349 }
1350
1351
1352 wxImageList *wxListCtrl::GetImageList(int which) const
1353 {
1354 if ( which == wxIMAGE_LIST_NORMAL )
1355 {
1356 return m_imageListNormal;
1357 }
1358 else if ( which == wxIMAGE_LIST_SMALL )
1359 {
1360 return m_imageListSmall;
1361 }
1362 else if ( which == wxIMAGE_LIST_STATE )
1363 {
1364 return m_imageListState;
1365 }
1366 return NULL;
1367 }
1368
1369 void wxListCtrl::SetImageList(wxImageList *imageList, int which)
1370 {
1371 int flags = 0;
1372 if ( which == wxIMAGE_LIST_NORMAL )
1373 {
1374 flags = LVSIL_NORMAL;
1375 if (m_ownsImageListNormal) delete m_imageListNormal;
1376 m_imageListNormal = imageList;
1377 m_ownsImageListNormal = false;
1378 }
1379 else if ( which == wxIMAGE_LIST_SMALL )
1380 {
1381 flags = LVSIL_SMALL;
1382 if (m_ownsImageListSmall) delete m_imageListSmall;
1383 m_imageListSmall = imageList;
1384 m_ownsImageListSmall = false;
1385 }
1386 else if ( which == wxIMAGE_LIST_STATE )
1387 {
1388 flags = LVSIL_STATE;
1389 if (m_ownsImageListState) delete m_imageListState;
1390 m_imageListState = imageList;
1391 m_ownsImageListState = false;
1392 }
1393 (void) ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
1394 }
1395
1396 void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
1397 {
1398 SetImageList(imageList, which);
1399 if ( which == wxIMAGE_LIST_NORMAL )
1400 m_ownsImageListNormal = true;
1401 else if ( which == wxIMAGE_LIST_SMALL )
1402 m_ownsImageListSmall = true;
1403 else if ( which == wxIMAGE_LIST_STATE )
1404 m_ownsImageListState = true;
1405 }
1406
1407 // ----------------------------------------------------------------------------
1408 // Operations
1409 // ----------------------------------------------------------------------------
1410
1411 // Arranges the items
1412 bool wxListCtrl::Arrange(int flag)
1413 {
1414 UINT code = 0;
1415 if ( flag == wxLIST_ALIGN_LEFT )
1416 code = LVA_ALIGNLEFT;
1417 else if ( flag == wxLIST_ALIGN_TOP )
1418 code = LVA_ALIGNTOP;
1419 else if ( flag == wxLIST_ALIGN_DEFAULT )
1420 code = LVA_DEFAULT;
1421 else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
1422 code = LVA_SNAPTOGRID;
1423
1424 return (ListView_Arrange(GetHwnd(), code) != 0);
1425 }
1426
1427 // Deletes an item
1428 bool wxListCtrl::DeleteItem(long item)
1429 {
1430 if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
1431 {
1432 wxLogLastError(wxT("ListView_DeleteItem"));
1433 return false;
1434 }
1435
1436 m_count--;
1437 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1438 wxT("m_count should match ListView_GetItemCount"));
1439
1440 // the virtual list control doesn't refresh itself correctly, help it
1441 if ( IsVirtual() )
1442 {
1443 // we need to refresh all the lines below the one which was deleted
1444 wxRect rectItem;
1445 if ( item > 0 && GetItemCount() )
1446 {
1447 GetItemRect(item - 1, rectItem);
1448 }
1449 else
1450 {
1451 rectItem.y =
1452 rectItem.height = 0;
1453 }
1454
1455 wxRect rectWin = GetRect();
1456 rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
1457 rectWin.y = rectItem.GetBottom();
1458
1459 RefreshRect(rectWin);
1460 }
1461
1462 return true;
1463 }
1464
1465 // Deletes all items
1466 bool wxListCtrl::DeleteAllItems()
1467 {
1468 return ListView_DeleteAllItems(GetHwnd()) != 0;
1469 }
1470
1471 // Deletes all items
1472 bool wxListCtrl::DeleteAllColumns()
1473 {
1474 while ( m_colCount > 0 )
1475 {
1476 if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
1477 {
1478 wxLogLastError(wxT("ListView_DeleteColumn"));
1479
1480 return false;
1481 }
1482
1483 m_colCount--;
1484 }
1485
1486 wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
1487
1488 return true;
1489 }
1490
1491 // Deletes a column
1492 bool wxListCtrl::DeleteColumn(int col)
1493 {
1494 bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
1495
1496 if ( success && (m_colCount > 0) )
1497 m_colCount --;
1498 return success;
1499 }
1500
1501 // Clears items, and columns if there are any.
1502 void wxListCtrl::ClearAll()
1503 {
1504 DeleteAllItems();
1505 if ( m_colCount > 0 )
1506 DeleteAllColumns();
1507 }
1508
1509 void wxListCtrl::InitEditControl(WXHWND hWnd)
1510 {
1511 m_textCtrl->SetHWND(hWnd);
1512 m_textCtrl->SubclassWin(hWnd);
1513 m_textCtrl->SetParent(this);
1514
1515 // we must disallow TABbing away from the control while the edit contol is
1516 // shown because this leaves it in some strange state (just try removing
1517 // this line and then pressing TAB while editing an item in listctrl
1518 // inside a panel)
1519 m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
1520 }
1521
1522 wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
1523 {
1524 wxCHECK_MSG( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)), NULL,
1525 "control used for label editing must be a wxTextCtrl" );
1526
1527 // ListView_EditLabel requires that the list has focus.
1528 SetFocus();
1529
1530 // create m_textCtrl here before calling ListView_EditLabel() because it
1531 // generates wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT event from inside it and
1532 // the user handler for it can call GetEditControl() resulting in an on
1533 // demand creation of a stock wxTextCtrl instead of the control of a
1534 // (possibly) custom wxClassInfo
1535 DeleteEditControl();
1536 m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
1537
1538 WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
1539 if ( !hWnd )
1540 {
1541 // failed to start editing
1542 delete m_textCtrl;
1543 m_textCtrl = NULL;
1544
1545 return NULL;
1546 }
1547
1548 // if GetEditControl() hasn't been called, we need to initialize the edit
1549 // control ourselves
1550 if ( !m_textCtrl->GetHWND() )
1551 InitEditControl(hWnd);
1552
1553 return m_textCtrl;
1554 }
1555
1556 // End label editing, optionally cancelling the edit
1557 bool wxListCtrl::EndEditLabel(bool cancel)
1558 {
1559 // m_textCtrl is not always ready, ie. in EVT_LIST_BEGIN_LABEL_EDIT
1560 HWND hwnd = ListView_GetEditControl(GetHwnd());
1561 if ( !hwnd )
1562 return false;
1563
1564 // We shouldn't destroy the control ourselves according to MSDN, which
1565 // proposes WM_CANCELMODE to do this, but it doesn't seem to work so
1566 // emulate the corresponding user action instead.
1567 ::SendMessage(hwnd, WM_KEYDOWN, cancel ? VK_ESCAPE : VK_RETURN, 0);
1568
1569 return true;
1570 }
1571
1572 // Ensures this item is visible
1573 bool wxListCtrl::EnsureVisible(long item)
1574 {
1575 return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != FALSE;
1576 }
1577
1578 // Find an item whose label matches this string, starting from the item after 'start'
1579 // or the beginning if 'start' is -1.
1580 long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
1581 {
1582 LV_FINDINFO findInfo;
1583
1584 findInfo.flags = LVFI_STRING;
1585 if ( partial )
1586 findInfo.flags |= LVFI_PARTIAL;
1587 findInfo.psz = str.wx_str();
1588
1589 // ListView_FindItem() excludes the first item from search and to look
1590 // through all the items you need to start from -1 which is unnatural and
1591 // inconsistent with the generic version - so we adjust the index
1592 if (start != -1)
1593 start --;
1594 return ListView_FindItem(GetHwnd(), start, &findInfo);
1595 }
1596
1597 // Find an item whose data matches this data, starting from the item after
1598 // 'start' or the beginning if 'start' is -1.
1599 long wxListCtrl::FindItem(long start, wxUIntPtr data)
1600 {
1601 // we can't use ListView_FindItem() directly as we don't store the data
1602 // pointer itself in the control but rather our own internal data, so first
1603 // we need to find the right value to search for (and there can be several
1604 // of them)
1605 int idx = wxNOT_FOUND;
1606 const unsigned count = m_internalData.size();
1607 for ( unsigned n = 0; n < count; n++ )
1608 {
1609 if ( m_internalData[n]->lParam == (LPARAM)data )
1610 {
1611 LV_FINDINFO findInfo;
1612 findInfo.flags = LVFI_PARAM;
1613 findInfo.lParam = (LPARAM)wxPtrToUInt(m_internalData[n]);
1614
1615 int rc = ListView_FindItem(GetHwnd(), start, &findInfo);
1616 if ( rc != -1 )
1617 {
1618 if ( idx == wxNOT_FOUND || rc < idx )
1619 {
1620 idx = rc;
1621 if ( idx == start + 1 )
1622 {
1623 // we can stop here, we don't risk finding a closer
1624 // match
1625 break;
1626 }
1627 }
1628 //else: this item is after the previously found one
1629 }
1630 }
1631 }
1632
1633 return idx;
1634 }
1635
1636 // Find an item nearest this position in the specified direction, starting from
1637 // the item after 'start' or the beginning if 'start' is -1.
1638 long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
1639 {
1640 LV_FINDINFO findInfo;
1641
1642 findInfo.flags = LVFI_NEARESTXY;
1643 findInfo.pt.x = pt.x;
1644 findInfo.pt.y = pt.y;
1645 findInfo.vkDirection = VK_RIGHT;
1646
1647 if ( direction == wxLIST_FIND_UP )
1648 findInfo.vkDirection = VK_UP;
1649 else if ( direction == wxLIST_FIND_DOWN )
1650 findInfo.vkDirection = VK_DOWN;
1651 else if ( direction == wxLIST_FIND_LEFT )
1652 findInfo.vkDirection = VK_LEFT;
1653 else if ( direction == wxLIST_FIND_RIGHT )
1654 findInfo.vkDirection = VK_RIGHT;
1655
1656 return ListView_FindItem(GetHwnd(), start, &findInfo);
1657 }
1658
1659 // Determines which item (if any) is at the specified point,
1660 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
1661 long
1662 wxListCtrl::HitTest(const wxPoint& point, int& flags, long *ptrSubItem) const
1663 {
1664 LV_HITTESTINFO hitTestInfo;
1665 hitTestInfo.pt.x = (int) point.x;
1666 hitTestInfo.pt.y = (int) point.y;
1667
1668 long item;
1669 #ifdef LVM_SUBITEMHITTEST
1670 if ( ptrSubItem && wxApp::GetComCtl32Version() >= 470 )
1671 {
1672 item = ListView_SubItemHitTest(GetHwnd(), &hitTestInfo);
1673 *ptrSubItem = hitTestInfo.iSubItem;
1674 }
1675 else
1676 #endif // LVM_SUBITEMHITTEST
1677 {
1678 item = ListView_HitTest(GetHwnd(), &hitTestInfo);
1679 }
1680
1681 flags = 0;
1682
1683 if ( hitTestInfo.flags & LVHT_ABOVE )
1684 flags |= wxLIST_HITTEST_ABOVE;
1685 if ( hitTestInfo.flags & LVHT_BELOW )
1686 flags |= wxLIST_HITTEST_BELOW;
1687 if ( hitTestInfo.flags & LVHT_TOLEFT )
1688 flags |= wxLIST_HITTEST_TOLEFT;
1689 if ( hitTestInfo.flags & LVHT_TORIGHT )
1690 flags |= wxLIST_HITTEST_TORIGHT;
1691
1692 if ( hitTestInfo.flags & LVHT_NOWHERE )
1693 flags |= wxLIST_HITTEST_NOWHERE;
1694
1695 // note a bug or at least a very strange feature of comtl32.dll (tested
1696 // with version 4.0 under Win95 and 6.0 under Win 2003): if you click to
1697 // the right of the item label, ListView_HitTest() returns a combination of
1698 // LVHT_ONITEMICON, LVHT_ONITEMLABEL and LVHT_ONITEMSTATEICON -- filter out
1699 // the bits which don't make sense
1700 if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
1701 {
1702 flags |= wxLIST_HITTEST_ONITEMLABEL;
1703
1704 // do not translate LVHT_ONITEMICON here, as per above
1705 }
1706 else
1707 {
1708 if ( hitTestInfo.flags & LVHT_ONITEMICON )
1709 flags |= wxLIST_HITTEST_ONITEMICON;
1710 if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
1711 flags |= wxLIST_HITTEST_ONITEMSTATEICON;
1712 }
1713
1714 return item;
1715 }
1716
1717
1718 // Inserts an item, returning the index of the new item if successful,
1719 // -1 otherwise.
1720 long wxListCtrl::InsertItem(const wxListItem& info)
1721 {
1722 wxASSERT_MSG( !IsVirtual(), wxT("can't be used with virtual controls") );
1723
1724 LV_ITEM item;
1725 wxConvertToMSWListItem(this, info, item);
1726 item.mask &= ~LVIF_PARAM;
1727
1728 // check whether we need to allocate our internal data
1729 bool needInternalData = (info.m_mask & wxLIST_MASK_DATA) ||
1730 info.HasAttributes();
1731 if ( needInternalData )
1732 {
1733 item.mask |= LVIF_PARAM;
1734
1735 wxMSWListItemData * const data = new wxMSWListItemData;
1736 m_internalData.push_back(data);
1737 item.lParam = (LPARAM)data;
1738
1739 if ( info.m_mask & wxLIST_MASK_DATA )
1740 data->lParam = info.m_data;
1741
1742 // check whether it has any custom attributes
1743 if ( info.HasAttributes() )
1744 {
1745 // take copy of attributes
1746 data->attr = new wxListItemAttr(*info.GetAttributes());
1747
1748 // and remember that we have some now...
1749 m_hasAnyAttr = true;
1750 }
1751 }
1752
1753 const long rv = ListView_InsertItem(GetHwnd(), & item);
1754
1755 // failing to insert the item is really unexpected
1756 wxCHECK_MSG( rv != -1, rv, "failed to insert an item in wxListCtrl" );
1757
1758 m_count++;
1759 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1760 wxT("m_count should match ListView_GetItemCount"));
1761
1762 return rv;
1763 }
1764
1765 long wxListCtrl::InsertItem(long index, const wxString& label)
1766 {
1767 wxListItem info;
1768 info.m_text = label;
1769 info.m_mask = wxLIST_MASK_TEXT;
1770 info.m_itemId = index;
1771 return InsertItem(info);
1772 }
1773
1774 // Inserts an image item
1775 long wxListCtrl::InsertItem(long index, int imageIndex)
1776 {
1777 wxListItem info;
1778 info.m_image = imageIndex;
1779 info.m_mask = wxLIST_MASK_IMAGE;
1780 info.m_itemId = index;
1781 return InsertItem(info);
1782 }
1783
1784 // Inserts an image/string item
1785 long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
1786 {
1787 wxListItem info;
1788 info.m_image = imageIndex;
1789 info.m_text = label;
1790 info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
1791 info.m_itemId = index;
1792 return InsertItem(info);
1793 }
1794
1795 // For list view mode (only), inserts a column.
1796 long wxListCtrl::InsertColumn(long col, const wxListItem& item)
1797 {
1798 LV_COLUMN lvCol;
1799 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
1800
1801 if ( !(lvCol.mask & LVCF_WIDTH) )
1802 {
1803 // always give some width to the new column: this one is compatible
1804 // with the generic version
1805 lvCol.mask |= LVCF_WIDTH;
1806 lvCol.cx = 80;
1807 }
1808
1809 long n = ListView_InsertColumn(GetHwnd(), col, &lvCol);
1810 if ( n != -1 )
1811 {
1812 m_colCount++;
1813 }
1814 else // failed to insert?
1815 {
1816 wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
1817 lvCol.pszText);
1818 }
1819
1820 return n;
1821 }
1822
1823 long wxListCtrl::InsertColumn(long col,
1824 const wxString& heading,
1825 int format,
1826 int width)
1827 {
1828 wxListItem item;
1829 item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
1830 item.m_text = heading;
1831 if ( width > -1 )
1832 {
1833 item.m_mask |= wxLIST_MASK_WIDTH;
1834 item.m_width = width;
1835 }
1836 item.m_format = format;
1837
1838 return InsertColumn(col, item);
1839 }
1840
1841 // scroll the control by the given number of pixels (exception: in list view,
1842 // dx is interpreted as number of columns)
1843 bool wxListCtrl::ScrollList(int dx, int dy)
1844 {
1845 if ( !ListView_Scroll(GetHwnd(), dx, dy) )
1846 {
1847 wxLogDebug(wxT("ListView_Scroll(%d, %d) failed"), dx, dy);
1848
1849 return false;
1850 }
1851
1852 return true;
1853 }
1854
1855 // Sort items.
1856
1857 // fn is a function which takes 3 long arguments: item1, item2, data.
1858 // item1 is the long data associated with a first item (NOT the index).
1859 // item2 is the long data associated with a second item (NOT the index).
1860 // data is the same value as passed to SortItems.
1861 // The return value is a negative number if the first item should precede the second
1862 // item, a positive number of the second item should precede the first,
1863 // or zero if the two items are equivalent.
1864
1865 // data is arbitrary data to be passed to the sort function.
1866
1867 // Internal structures for proxying the user compare function
1868 // so that we can pass it the *real* user data
1869
1870 // translate lParam data and call user func
1871 struct wxInternalDataSort
1872 {
1873 wxListCtrlCompare user_fn;
1874 wxIntPtr data;
1875 };
1876
1877 int CALLBACK wxInternalDataCompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
1878 {
1879 wxInternalDataSort * const internalData = (wxInternalDataSort *) lParamSort;
1880
1881 wxMSWListItemData *data1 = (wxMSWListItemData *) lParam1;
1882 wxMSWListItemData *data2 = (wxMSWListItemData *) lParam2;
1883
1884 long d1 = (data1 == NULL ? 0 : data1->lParam);
1885 long d2 = (data2 == NULL ? 0 : data2->lParam);
1886
1887 return internalData->user_fn(d1, d2, internalData->data);
1888
1889 }
1890
1891 bool wxListCtrl::SortItems(wxListCtrlCompare fn, wxIntPtr data)
1892 {
1893 wxInternalDataSort internalData;
1894 internalData.user_fn = fn;
1895 internalData.data = data;
1896
1897 // WPARAM cast is needed for mingw/cygwin
1898 if ( !ListView_SortItems(GetHwnd(),
1899 wxInternalDataCompareFunc,
1900 (WPARAM) &internalData) )
1901 {
1902 wxLogDebug(wxT("ListView_SortItems() failed"));
1903
1904 return false;
1905 }
1906
1907 return true;
1908 }
1909
1910
1911
1912 // ----------------------------------------------------------------------------
1913 // message processing
1914 // ----------------------------------------------------------------------------
1915
1916 bool wxListCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
1917 {
1918 if ( msg->message == WM_KEYDOWN )
1919 {
1920 // Only eat VK_RETURN if not being used by the application in
1921 // conjunction with modifiers
1922 if ( msg->wParam == VK_RETURN && !wxIsAnyModifierDown() )
1923 {
1924 // we need VK_RETURN to generate wxEVT_COMMAND_LIST_ITEM_ACTIVATED
1925 return false;
1926 }
1927 }
1928 return wxControl::MSWShouldPreProcessMessage(msg);
1929 }
1930
1931 bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
1932 {
1933 const int id = (signed short)id_;
1934 if (cmd == EN_UPDATE)
1935 {
1936 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
1937 event.SetEventObject( this );
1938 ProcessCommand(event);
1939 return true;
1940 }
1941 else if (cmd == EN_KILLFOCUS)
1942 {
1943 wxCommandEvent event(wxEVT_KILL_FOCUS, id);
1944 event.SetEventObject( this );
1945 ProcessCommand(event);
1946 return true;
1947 }
1948 else
1949 return false;
1950 }
1951
1952 // utility used by wxListCtrl::MSWOnNotify and by wxDataViewHeaderWindowMSW::MSWOnNotify
1953 int WXDLLIMPEXP_CORE wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick)
1954 {
1955 // find the column clicked: we have to search for it ourselves as the
1956 // notification message doesn't provide this info
1957
1958 // where did the click occur?
1959 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
1960 if ( nmhdr->code == GN_CONTEXTMENU )
1961 {
1962 *ptClick = ((NMRGINFO*)nmhdr)->ptAction;
1963 }
1964 else
1965 #endif //__WXWINCE__
1966 if ( !::GetCursorPos(ptClick) )
1967 {
1968 wxLogLastError(wxT("GetCursorPos"));
1969 }
1970
1971 // we need to use listctrl coordinates for the event point so this is what
1972 // we return in ptClick, but for comparison with Header_GetItemRect()
1973 // result below we need to use header window coordinates
1974 POINT ptClickHeader = *ptClick;
1975 if ( !::ScreenToClient(nmhdr->hwndFrom, &ptClickHeader) )
1976 {
1977 wxLogLastError(wxT("ScreenToClient(listctrl header)"));
1978 }
1979
1980 if ( !::ScreenToClient(::GetParent(nmhdr->hwndFrom), ptClick) )
1981 {
1982 wxLogLastError(wxT("ScreenToClient(listctrl)"));
1983 }
1984
1985 const int colCount = Header_GetItemCount(nmhdr->hwndFrom);
1986 for ( int col = 0; col < colCount; col++ )
1987 {
1988 RECT rect;
1989 if ( Header_GetItemRect(nmhdr->hwndFrom, col, &rect) )
1990 {
1991 if ( ::PtInRect(&rect, ptClickHeader) )
1992 {
1993 return col;
1994 }
1995 }
1996 }
1997
1998 return wxNOT_FOUND;
1999 }
2000
2001 bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
2002 {
2003
2004 // prepare the event
2005 // -----------------
2006
2007 wxListEvent event(wxEVT_NULL, m_windowId);
2008 event.SetEventObject(this);
2009
2010 wxEventType eventType = wxEVT_NULL;
2011
2012 NMHDR *nmhdr = (NMHDR *)lParam;
2013
2014 // if your compiler is as broken as this, you should really change it: this
2015 // code is needed for normal operation! #ifdef below is only useful for
2016 // automatic rebuilds which are done with a very old compiler version
2017 #ifdef HDN_BEGINTRACKA
2018
2019 // check for messages from the header (in report view)
2020 HWND hwndHdr = ListView_GetHeader(GetHwnd());
2021
2022 // is it a message from the header?
2023 if ( nmhdr->hwndFrom == hwndHdr )
2024 {
2025 HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
2026
2027 event.m_itemIndex = -1;
2028
2029 bool ignore = false;
2030 switch ( nmhdr->code )
2031 {
2032 // yet another comctl32.dll bug: under NT/W2K it sends Unicode
2033 // TRACK messages even to ANSI programs: on my system I get
2034 // HDN_BEGINTRACKW and HDN_ENDTRACKA!
2035 //
2036 // work around is to simply catch both versions and hope that it
2037 // works (why should this message exist in ANSI and Unicode is
2038 // beyond me as it doesn't deal with strings at all...)
2039 //
2040 // another problem is that HDN_TRACK is not sent at all by header
2041 // with HDS_FULLDRAG style which is used by default by wxListCtrl
2042 // under recent Windows versions (starting from at least XP) so we
2043 // need to use HDN_ITEMCHANGING instead of it
2044 case HDN_BEGINTRACKA:
2045 case HDN_BEGINTRACKW:
2046 eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
2047 // fall through
2048
2049 case HDN_ITEMCHANGING:
2050 if ( eventType == wxEVT_NULL )
2051 {
2052 if ( !nmHDR->pitem || !(nmHDR->pitem->mask & HDI_WIDTH) )
2053 {
2054 // something other than the width is being changed,
2055 // ignore it
2056 ignore = true;
2057 break;
2058 }
2059
2060 // also ignore the events sent when the width didn't really
2061 // change: this is not just an optimization but also gets
2062 // rid of a useless and unexpected DRAGGING event which
2063 // would otherwise be sent after the END_DRAG one as we get
2064 // an HDN_ITEMCHANGING after HDN_ENDTRACK for some reason
2065 if ( nmHDR->pitem->cxy == GetColumnWidth(nmHDR->iItem) )
2066 {
2067 ignore = true;
2068 break;
2069 }
2070
2071 eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
2072 }
2073 // fall through
2074
2075 case HDN_ENDTRACKA:
2076 case HDN_ENDTRACKW:
2077 if ( eventType == wxEVT_NULL )
2078 eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
2079
2080 event.m_item.m_width = nmHDR->pitem->cxy;
2081 event.m_col = nmHDR->iItem;
2082 break;
2083
2084 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2085 case GN_CONTEXTMENU:
2086 #endif //__WXWINCE__
2087 case NM_RCLICK:
2088 {
2089 POINT ptClick;
2090
2091 eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
2092 event.m_col = wxMSWGetColumnClicked(nmhdr, &ptClick);
2093 event.m_pointDrag.x = ptClick.x;
2094 event.m_pointDrag.y = ptClick.y;
2095 }
2096 break;
2097
2098 case HDN_GETDISPINFOW:
2099 // letting Windows XP handle this message results in mysterious
2100 // crashes in comctl32.dll seemingly because of bad message
2101 // parameters
2102 //
2103 // I have no idea what is the real cause of the bug (which is,
2104 // just to make things interesting, impossible to reproduce
2105 // reliably) but ignoring all these messages does fix it and
2106 // doesn't seem to have any negative consequences
2107 return true;
2108
2109 default:
2110 ignore = true;
2111 }
2112
2113 if ( ignore )
2114 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2115 }
2116 else
2117 #endif // defined(HDN_BEGINTRACKA)
2118 if ( nmhdr->hwndFrom == GetHwnd() )
2119 {
2120 // almost all messages use NM_LISTVIEW
2121 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
2122
2123 const int iItem = nmLV->iItem;
2124
2125
2126 // If we have a valid item then check if there is a data value
2127 // associated with it and put it in the event.
2128 if ( iItem >= 0 && iItem < GetItemCount() )
2129 {
2130 wxMSWListItemData *internaldata =
2131 MSWGetItemData(iItem);
2132
2133 if ( internaldata )
2134 event.m_item.m_data = internaldata->lParam;
2135 }
2136
2137 bool processed = true;
2138 switch ( nmhdr->code )
2139 {
2140 case LVN_BEGINRDRAG:
2141 eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
2142 // fall through
2143
2144 case LVN_BEGINDRAG:
2145 if ( eventType == wxEVT_NULL )
2146 {
2147 eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
2148 }
2149
2150 event.m_itemIndex = iItem;
2151 event.m_pointDrag.x = nmLV->ptAction.x;
2152 event.m_pointDrag.y = nmLV->ptAction.y;
2153 break;
2154
2155 // NB: we have to handle both *A and *W versions here because some
2156 // versions of comctl32.dll send ANSI messages even to the
2157 // Unicode windows
2158 case LVN_BEGINLABELEDITA:
2159 case LVN_BEGINLABELEDITW:
2160 {
2161 wxLV_ITEM item;
2162 if ( nmhdr->code == LVN_BEGINLABELEDITA )
2163 {
2164 item.Init(((LV_DISPINFOA *)lParam)->item);
2165 }
2166 else // LVN_BEGINLABELEDITW
2167 {
2168 item.Init(((LV_DISPINFOW *)lParam)->item);
2169 }
2170
2171 eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
2172 wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
2173 event.m_itemIndex = event.m_item.m_itemId;
2174 }
2175 break;
2176
2177 case LVN_ENDLABELEDITA:
2178 case LVN_ENDLABELEDITW:
2179 {
2180 wxLV_ITEM item;
2181 if ( nmhdr->code == LVN_ENDLABELEDITA )
2182 {
2183 item.Init(((LV_DISPINFOA *)lParam)->item);
2184 }
2185 else // LVN_ENDLABELEDITW
2186 {
2187 item.Init(((LV_DISPINFOW *)lParam)->item);
2188 }
2189
2190 // was editing cancelled?
2191 const LV_ITEM& lvi = (LV_ITEM)item;
2192 if ( !lvi.pszText || lvi.iItem == -1 )
2193 {
2194 // EDIT control will be deleted by the list control
2195 // itself so prevent us from deleting it as well
2196 DeleteEditControl();
2197
2198 event.SetEditCanceled(true);
2199 }
2200
2201 eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
2202 wxConvertFromMSWListItem(NULL, event.m_item, item);
2203 event.m_itemIndex = event.m_item.m_itemId;
2204 }
2205 break;
2206
2207 case LVN_COLUMNCLICK:
2208 eventType = wxEVT_COMMAND_LIST_COL_CLICK;
2209 event.m_itemIndex = -1;
2210 event.m_col = nmLV->iSubItem;
2211 break;
2212
2213 case LVN_DELETEALLITEMS:
2214 eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
2215 event.m_itemIndex = -1;
2216 break;
2217
2218 case LVN_DELETEITEM:
2219 if ( m_count == 0 )
2220 {
2221 // this should be prevented by the post-processing code
2222 // below, but "just in case"
2223 return false;
2224 }
2225
2226 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
2227 event.m_itemIndex = iItem;
2228
2229 // delete the associated internal data
2230 if ( wxMSWListItemData *data = MSWGetItemData(iItem) )
2231 {
2232 const unsigned count = m_internalData.size();
2233 for ( unsigned n = 0; n < count; n++ )
2234 {
2235 if ( m_internalData[n] == data )
2236 {
2237 m_internalData.erase(m_internalData.begin() + n);
2238 delete data;
2239 data = NULL;
2240 break;
2241 }
2242 }
2243
2244 wxASSERT_MSG( !data, "invalid internal data pointer?" );
2245 }
2246 break;
2247
2248 case LVN_INSERTITEM:
2249 eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
2250 event.m_itemIndex = iItem;
2251 break;
2252
2253 case LVN_ITEMCHANGED:
2254 // we translate this catch all message into more interesting
2255 // (and more easy to process) wxWidgets events
2256
2257 // first of all, we deal with the state change events only and
2258 // only for valid items (item == -1 for the virtual list
2259 // control)
2260 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
2261 {
2262 // temp vars for readability
2263 const UINT stOld = nmLV->uOldState;
2264 const UINT stNew = nmLV->uNewState;
2265
2266 event.m_item.SetId(iItem);
2267 event.m_item.SetMask(wxLIST_MASK_TEXT |
2268 wxLIST_MASK_IMAGE |
2269 wxLIST_MASK_DATA);
2270 GetItem(event.m_item);
2271
2272 // has the focus changed?
2273 if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
2274 {
2275 eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
2276 event.m_itemIndex = iItem;
2277 }
2278
2279 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
2280 {
2281 if ( eventType != wxEVT_NULL )
2282 {
2283 // focus and selection have both changed: send the
2284 // focus event from here and the selection one
2285 // below
2286 event.SetEventType(eventType);
2287 (void)HandleWindowEvent(event);
2288 }
2289 else // no focus event to send
2290 {
2291 // then need to set m_itemIndex as it wasn't done
2292 // above
2293 event.m_itemIndex = iItem;
2294 }
2295
2296 eventType = stNew & LVIS_SELECTED
2297 ? wxEVT_COMMAND_LIST_ITEM_SELECTED
2298 : wxEVT_COMMAND_LIST_ITEM_DESELECTED;
2299 }
2300 }
2301
2302 if ( eventType == wxEVT_NULL )
2303 {
2304 // not an interesting event for us
2305 return false;
2306 }
2307
2308 break;
2309
2310 case LVN_KEYDOWN:
2311 {
2312 LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
2313 WORD wVKey = info->wVKey;
2314
2315 // get the current selection
2316 long lItem = GetNextItem(-1,
2317 wxLIST_NEXT_ALL,
2318 wxLIST_STATE_SELECTED);
2319
2320 // <Enter> or <Space> activate the selected item if any (but
2321 // not with any modifiers as they have a predefined meaning
2322 // then)
2323 if ( lItem != -1 &&
2324 (wVKey == VK_RETURN || wVKey == VK_SPACE) &&
2325 !wxIsAnyModifierDown() )
2326 {
2327 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2328 }
2329 else
2330 {
2331 eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
2332
2333 // wxCharCodeMSWToWX() returns 0 if the key is an ASCII
2334 // value which should be used as is
2335 int code = wxCharCodeMSWToWX(wVKey);
2336 event.m_code = code ? code : wVKey;
2337 }
2338
2339 event.m_itemIndex =
2340 event.m_item.m_itemId = lItem;
2341
2342 if ( lItem != -1 )
2343 {
2344 // fill the other fields too
2345 event.m_item.m_text = GetItemText(lItem);
2346 event.m_item.m_data = GetItemData(lItem);
2347 }
2348 }
2349 break;
2350
2351 case NM_DBLCLK:
2352 // if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
2353 // anything else
2354 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2355 {
2356 return true;
2357 }
2358
2359 // else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
2360 // if it happened on an item (and not on empty place)
2361 if ( iItem == -1 )
2362 {
2363 // not on item
2364 return false;
2365 }
2366
2367 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2368 event.m_itemIndex = iItem;
2369 event.m_item.m_text = GetItemText(iItem);
2370 event.m_item.m_data = GetItemData(iItem);
2371 break;
2372
2373 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2374 case GN_CONTEXTMENU:
2375 #endif //__WXWINCE__
2376 case NM_RCLICK:
2377 // if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
2378 // don't do anything else
2379 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2380 {
2381 return true;
2382 }
2383
2384 // else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
2385 LV_HITTESTINFO lvhti;
2386 wxZeroMemory(lvhti);
2387
2388 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2389 if ( nmhdr->code == GN_CONTEXTMENU )
2390 {
2391 lvhti.pt = ((NMRGINFO*)nmhdr)->ptAction;
2392 }
2393 else
2394 #endif //__WXWINCE__
2395 {
2396 ::GetCursorPos(&(lvhti.pt));
2397 }
2398
2399 ::ScreenToClient(GetHwnd(), &lvhti.pt);
2400 if ( ListView_HitTest(GetHwnd(), &lvhti) != -1 )
2401 {
2402 if ( lvhti.flags & LVHT_ONITEM )
2403 {
2404 eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
2405 event.m_itemIndex = lvhti.iItem;
2406 event.m_pointDrag.x = lvhti.pt.x;
2407 event.m_pointDrag.y = lvhti.pt.y;
2408 }
2409 }
2410 break;
2411
2412 #ifdef NM_CUSTOMDRAW
2413 case NM_CUSTOMDRAW:
2414 *result = OnCustomDraw(lParam);
2415
2416 return *result != CDRF_DODEFAULT;
2417 #endif // _WIN32_IE >= 0x300
2418
2419 case LVN_ODCACHEHINT:
2420 {
2421 const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
2422
2423 eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
2424
2425 // we get some really stupid cache hints like ones for
2426 // items in range 0..0 for an empty control or, after
2427 // deleting an item, for items in invalid range -- filter
2428 // this garbage out
2429 if ( cacheHint->iFrom > cacheHint->iTo )
2430 return false;
2431
2432 event.m_oldItemIndex = cacheHint->iFrom;
2433
2434 const long iMax = GetItemCount();
2435 event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
2436 : iMax - 1;
2437 }
2438 break;
2439
2440 #ifdef HAVE_NMLVFINDITEM
2441 case LVN_ODFINDITEM:
2442 // this message is only used with the virtual list control but
2443 // even there we don't want to always use it: in a control with
2444 // sufficiently big number of items (defined as > 1000 here),
2445 // accidentally pressing a key could result in hanging an
2446 // application waiting while it performs linear search
2447 if ( IsVirtual() && GetItemCount() <= 1000 )
2448 {
2449 NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam;
2450
2451 // no match by default
2452 *result = -1;
2453
2454 // we only handle string-based searches here
2455 //
2456 // TODO: what about LVFI_PARTIAL, should we handle this?
2457 if ( !(pFindInfo->lvfi.flags & LVFI_STRING) )
2458 {
2459 return false;
2460 }
2461
2462 const wxChar * const searchstr = pFindInfo->lvfi.psz;
2463 const size_t len = wxStrlen(searchstr);
2464
2465 // this is the first item we should examine, search from it
2466 // wrapping if necessary
2467 const int startPos = pFindInfo->iStart;
2468 const int maxPos = GetItemCount();
2469 wxCHECK_MSG( startPos <= maxPos, false,
2470 wxT("bad starting position in LVN_ODFINDITEM") );
2471
2472 int currentPos = startPos;
2473 do
2474 {
2475 // wrap to the beginning if necessary
2476 if ( currentPos == maxPos )
2477 {
2478 // somewhat surprisingly, LVFI_WRAP isn't set in
2479 // flags but we still should wrap
2480 currentPos = 0;
2481 }
2482
2483 // does this item begin with searchstr?
2484 if ( wxStrnicmp(searchstr,
2485 GetItemText(currentPos), len) == 0 )
2486 {
2487 *result = currentPos;
2488 break;
2489 }
2490 }
2491 while ( ++currentPos != startPos );
2492
2493 if ( *result == -1 )
2494 {
2495 // not found
2496 return false;
2497 }
2498
2499 SetItemState(*result,
2500 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED,
2501 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED);
2502 EnsureVisible(*result);
2503 return true;
2504 }
2505 else
2506 {
2507 processed = false;
2508 }
2509 break;
2510 #endif // HAVE_NMLVFINDITEM
2511
2512 case LVN_GETDISPINFO:
2513 if ( IsVirtual() )
2514 {
2515 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
2516
2517 LV_ITEM& lvi = info->item;
2518 long item = lvi.iItem;
2519
2520 if ( lvi.mask & LVIF_TEXT )
2521 {
2522 wxString text = OnGetItemText(item, lvi.iSubItem);
2523 wxStrlcpy(lvi.pszText, text.c_str(), lvi.cchTextMax);
2524 }
2525
2526 // see comment at the end of wxListCtrl::GetColumn()
2527 #ifdef NM_CUSTOMDRAW
2528 if ( lvi.mask & LVIF_IMAGE )
2529 {
2530 lvi.iImage = OnGetItemColumnImage(item, lvi.iSubItem);
2531 }
2532 #endif // NM_CUSTOMDRAW
2533
2534 // even though we never use LVM_SETCALLBACKMASK, we still
2535 // can get messages with LVIF_STATE in lvi.mask under Vista
2536 if ( lvi.mask & LVIF_STATE )
2537 {
2538 // we don't have anything to return from here...
2539 lvi.stateMask = 0;
2540 }
2541
2542 return true;
2543 }
2544 // fall through
2545
2546 default:
2547 processed = false;
2548 }
2549
2550 if ( !processed )
2551 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2552 }
2553 else
2554 {
2555 // where did this one come from?
2556 return false;
2557 }
2558
2559 // process the event
2560 // -----------------
2561
2562 event.SetEventType(eventType);
2563
2564 // fill in the item before passing it to the event handler if we do have a
2565 // valid item index and haven't filled it yet (e.g. for LVN_ITEMCHANGED)
2566 if ( event.m_itemIndex != -1 && !event.m_item.GetMask() )
2567 {
2568 wxListItem& item = event.m_item;
2569
2570 item.SetId(event.m_itemIndex);
2571 item.SetMask(wxLIST_MASK_TEXT | wxLIST_MASK_IMAGE | wxLIST_MASK_DATA);
2572 GetItem(item);
2573 }
2574
2575 bool processed = HandleWindowEvent(event);
2576
2577 // post processing
2578 // ---------------
2579 switch ( nmhdr->code )
2580 {
2581 case LVN_DELETEALLITEMS:
2582 // always return true to suppress all additional LVN_DELETEITEM
2583 // notifications - this makes deleting all items from a list ctrl
2584 // much faster
2585 *result = TRUE;
2586
2587 // also, we may free all user data now (couldn't do it before as
2588 // the user should have access to it in OnDeleteAllItems() handler)
2589 FreeAllInternalData();
2590
2591 // the control is empty now, synchronize the cached number of items
2592 // with the real one
2593 m_count = 0;
2594 return true;
2595
2596 case LVN_ENDLABELEDITA:
2597 case LVN_ENDLABELEDITW:
2598 // logic here is inverted compared to all the other messages
2599 *result = event.IsAllowed();
2600
2601 // EDIT control will be deleted by the list control itself so
2602 // prevent us from deleting it as well
2603 DeleteEditControl();
2604
2605 return true;
2606 }
2607
2608 if ( processed )
2609 *result = !event.IsAllowed();
2610
2611 return processed;
2612 }
2613
2614 // ----------------------------------------------------------------------------
2615 // custom draw stuff
2616 // ----------------------------------------------------------------------------
2617
2618 // see comment at the end of wxListCtrl::GetColumn()
2619 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
2620
2621 static RECT GetCustomDrawnItemRect(const NMCUSTOMDRAW& nmcd)
2622 {
2623 RECT rc;
2624 wxGetListCtrlItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, LVIR_BOUNDS, rc);
2625
2626 RECT rcIcon;
2627 wxGetListCtrlItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, LVIR_ICON, rcIcon);
2628
2629 // exclude the icon part, neither the selection background nor focus rect
2630 // should cover it
2631 rc.left = rcIcon.right;
2632
2633 return rc;
2634 }
2635
2636 static
2637 bool HandleSubItemPrepaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont, int colCount)
2638 {
2639 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2640
2641 HDC hdc = nmcd.hdc;
2642 HWND hwndList = nmcd.hdr.hwndFrom;
2643 const int col = pLVCD->iSubItem;
2644 const DWORD item = nmcd.dwItemSpec;
2645
2646 // the font must be valid, otherwise we wouldn't be painting the item at all
2647 SelectInHDC selFont(hdc, hfont);
2648
2649 // get the rectangle to paint
2650 int subitem = colCount ? col + 1 : col;
2651 RECT rc;
2652 wxGetListCtrlSubItemRect(hwndList, item, subitem, LVIR_BOUNDS, rc);
2653 rc.left += 6;
2654
2655 // get the image and text to draw
2656 wxChar text[512];
2657 LV_ITEM it;
2658 wxZeroMemory(it);
2659 it.mask = LVIF_TEXT | LVIF_IMAGE;
2660 it.iItem = item;
2661 it.iSubItem = col;
2662 it.pszText = text;
2663 it.cchTextMax = WXSIZEOF(text);
2664 ListView_GetItem(hwndList, &it);
2665
2666 HIMAGELIST himl = ListView_GetImageList(hwndList, LVSIL_SMALL);
2667 if ( himl && ImageList_GetImageCount(himl) )
2668 {
2669 if ( it.iImage != -1 )
2670 {
2671 ImageList_Draw(himl, it.iImage, hdc, rc.left, rc.top,
2672 nmcd.uItemState & CDIS_SELECTED ? ILD_SELECTED
2673 : ILD_TRANSPARENT);
2674 }
2675
2676 // notice that even if this item doesn't have any image, the list
2677 // control still leaves space for the image in the first column if the
2678 // image list is not empty (presumably so that items with and without
2679 // images align?)
2680 if ( it.iImage != -1 || it.iSubItem == 0 )
2681 {
2682 int wImage, hImage;
2683 ImageList_GetIconSize(himl, &wImage, &hImage);
2684
2685 rc.left += wImage + 2;
2686 }
2687 }
2688
2689 ::SetBkMode(hdc, TRANSPARENT);
2690
2691 UINT fmt = DT_SINGLELINE |
2692 #ifndef __WXWINCE__
2693 DT_WORD_ELLIPSIS |
2694 #endif // __WXWINCE__
2695 DT_NOPREFIX |
2696 DT_VCENTER;
2697
2698 LV_COLUMN lvCol;
2699 wxZeroMemory(lvCol);
2700 lvCol.mask = LVCF_FMT;
2701 if ( ListView_GetColumn(hwndList, col, &lvCol) )
2702 {
2703 switch ( lvCol.fmt & LVCFMT_JUSTIFYMASK )
2704 {
2705 case LVCFMT_LEFT:
2706 fmt |= DT_LEFT;
2707 break;
2708
2709 case LVCFMT_CENTER:
2710 fmt |= DT_CENTER;
2711 break;
2712
2713 case LVCFMT_RIGHT:
2714 fmt |= DT_RIGHT;
2715 break;
2716 }
2717 }
2718 //else: failed to get alignment, assume it's DT_LEFT (default)
2719
2720 DrawText(hdc, text, -1, &rc, fmt);
2721
2722 return true;
2723 }
2724
2725 static void HandleItemPostpaint(NMCUSTOMDRAW nmcd)
2726 {
2727 if ( nmcd.uItemState & CDIS_FOCUS )
2728 {
2729 RECT rc = GetCustomDrawnItemRect(nmcd);
2730
2731 // don't use the provided HDC, it's in some strange state by now
2732 ::DrawFocusRect(WindowHDC(nmcd.hdr.hwndFrom), &rc);
2733 }
2734 }
2735
2736 // pLVCD->clrText and clrTextBk should contain the colours to use
2737 static void HandleItemPaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
2738 {
2739 NMCUSTOMDRAW& nmcd = pLVCD->nmcd; // just a shortcut
2740
2741 const HWND hwndList = nmcd.hdr.hwndFrom;
2742 const int item = nmcd.dwItemSpec;
2743
2744 // unfortunately we can't trust CDIS_SELECTED, it is often set even when
2745 // the item is not at all selected for some reason (comctl32 6), but we
2746 // also can't always trust ListView_GetItem() as it could return the old
2747 // item status if we're called just after the (de)selection, so remember
2748 // the last item to gain selection and also check for it here
2749 for ( int i = -1;; )
2750 {
2751 i = ListView_GetNextItem(hwndList, i, LVNI_SELECTED);
2752 if ( i == -1 )
2753 {
2754 nmcd.uItemState &= ~CDIS_SELECTED;
2755 break;
2756 }
2757
2758 if ( i == item )
2759 {
2760 nmcd.uItemState |= CDIS_SELECTED;
2761 break;
2762 }
2763 }
2764
2765 // same thing for CDIS_FOCUS (except simpler as there is only one of them)
2766 //
2767 // NB: cast is needed to work around the bug in mingw32 headers which don't
2768 // have it inside ListView_GetNextItem() itself (unlike SDK ones)
2769 if ( ::GetFocus() == hwndList &&
2770 ListView_GetNextItem(
2771 hwndList, static_cast<WPARAM>(-1), LVNI_FOCUSED) == item )
2772 {
2773 nmcd.uItemState |= CDIS_FOCUS;
2774 }
2775 else
2776 {
2777 nmcd.uItemState &= ~CDIS_FOCUS;
2778 }
2779
2780 if ( nmcd.uItemState & CDIS_SELECTED )
2781 {
2782 int syscolFg, syscolBg;
2783 if ( ::GetFocus() == hwndList )
2784 {
2785 syscolFg = COLOR_HIGHLIGHTTEXT;
2786 syscolBg = COLOR_HIGHLIGHT;
2787 }
2788 else // selected but unfocused
2789 {
2790 syscolFg = COLOR_WINDOWTEXT;
2791 syscolBg = COLOR_BTNFACE;
2792
2793 // don't grey out the icon in this case neither
2794 nmcd.uItemState &= ~CDIS_SELECTED;
2795 }
2796
2797 pLVCD->clrText = ::GetSysColor(syscolFg);
2798 pLVCD->clrTextBk = ::GetSysColor(syscolBg);
2799 }
2800 //else: not selected, use normal colours from pLVCD
2801
2802 HDC hdc = nmcd.hdc;
2803 RECT rc = GetCustomDrawnItemRect(nmcd);
2804
2805 ::SetTextColor(hdc, pLVCD->clrText);
2806 ::FillRect(hdc, &rc, AutoHBRUSH(pLVCD->clrTextBk));
2807
2808 // we could use CDRF_NOTIFYSUBITEMDRAW here but it results in weird repaint
2809 // problems so just draw everything except the focus rect from here instead
2810 const int colCount = Header_GetItemCount(ListView_GetHeader(hwndList));
2811 for ( int col = 0; col < colCount; col++ )
2812 {
2813 pLVCD->iSubItem = col;
2814 HandleSubItemPrepaint(pLVCD, hfont, colCount);
2815 }
2816
2817 HandleItemPostpaint(nmcd);
2818 }
2819
2820 static WXLPARAM HandleItemPrepaint(wxListCtrl *listctrl,
2821 LPNMLVCUSTOMDRAW pLVCD,
2822 wxListItemAttr *attr)
2823 {
2824 if ( !attr )
2825 {
2826 // nothing to do for this item
2827 return CDRF_DODEFAULT;
2828 }
2829
2830
2831 // set the colours to use for text drawing
2832 pLVCD->clrText = attr->HasTextColour()
2833 ? wxColourToRGB(attr->GetTextColour())
2834 : wxColourToRGB(listctrl->GetTextColour());
2835 pLVCD->clrTextBk = attr->HasBackgroundColour()
2836 ? wxColourToRGB(attr->GetBackgroundColour())
2837 : wxColourToRGB(listctrl->GetBackgroundColour());
2838
2839 // select the font if non default one is specified
2840 if ( attr->HasFont() )
2841 {
2842 wxFont font = attr->GetFont();
2843 if ( font.GetEncoding() != wxFONTENCODING_SYSTEM )
2844 {
2845 // the standard control ignores the font encoding/charset, at least
2846 // with recent comctl32.dll versions (5 and 6, it uses to work with
2847 // 4.something) so we have to draw the item entirely ourselves in
2848 // this case
2849 HandleItemPaint(pLVCD, GetHfontOf(font));
2850 return CDRF_SKIPDEFAULT;
2851 }
2852
2853 ::SelectObject(pLVCD->nmcd.hdc, GetHfontOf(font));
2854
2855 return CDRF_NEWFONT;
2856 }
2857
2858 return CDRF_DODEFAULT;
2859 }
2860
2861 WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
2862 {
2863 LPNMLVCUSTOMDRAW pLVCD = (LPNMLVCUSTOMDRAW)lParam;
2864 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2865 switch ( nmcd.dwDrawStage )
2866 {
2867 case CDDS_PREPAINT:
2868 // if we've got any items with non standard attributes,
2869 // notify us before painting each item
2870 //
2871 // for virtual controls, always suppose that we have attributes as
2872 // there is no way to check for this
2873 if ( IsVirtual() || m_hasAnyAttr )
2874 return CDRF_NOTIFYITEMDRAW;
2875 break;
2876
2877 case CDDS_ITEMPREPAINT:
2878 // get a message for each subitem
2879 return CDRF_NOTIFYITEMDRAW;
2880
2881 case CDDS_SUBITEM | CDDS_ITEMPREPAINT:
2882 const int item = nmcd.dwItemSpec;
2883 const int column = pLVCD->iSubItem;
2884
2885 // we get this message with item == 0 for an empty control, we
2886 // must ignore it as calling OnGetItemAttr() would be wrong
2887 if ( item < 0 || item >= GetItemCount() )
2888 break;
2889 // same for columns
2890 if ( column < 0 || column >= GetColumnCount() )
2891 break;
2892
2893 return HandleItemPrepaint(this, pLVCD, DoGetItemColumnAttr(item, column));
2894 }
2895
2896 return CDRF_DODEFAULT;
2897 }
2898
2899 #endif // NM_CUSTOMDRAW supported
2900
2901 // Necessary for drawing hrules and vrules, if specified
2902 void wxListCtrl::OnPaint(wxPaintEvent& event)
2903 {
2904 const int itemCount = GetItemCount();
2905 const bool drawHRules = HasFlag(wxLC_HRULES);
2906 const bool drawVRules = HasFlag(wxLC_VRULES);
2907
2908 if (!InReportView() || !(drawHRules || drawVRules) || !itemCount)
2909 {
2910 event.Skip();
2911 return;
2912 }
2913
2914 wxPaintDC dc(this);
2915
2916 wxControl::OnPaint(event);
2917
2918 // Reset the device origin since it may have been set
2919 dc.SetDeviceOrigin(0, 0);
2920
2921 wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT));
2922 dc.SetPen(pen);
2923 dc.SetBrush(* wxTRANSPARENT_BRUSH);
2924
2925 wxSize clientSize = GetClientSize();
2926 wxRect itemRect;
2927
2928 if (drawHRules)
2929 {
2930 const long top = GetTopItem();
2931 for ( int i = top; i < top + GetCountPerPage() + 1; i++ )
2932 {
2933 if (GetItemRect(i, itemRect))
2934 {
2935 int cy = itemRect.GetTop();
2936 if (i != 0) // Don't draw the first one
2937 {
2938 dc.DrawLine(0, cy, clientSize.x, cy);
2939 }
2940 // Draw last line
2941 if (i == itemCount - 1)
2942 {
2943 cy = itemRect.GetBottom();
2944 dc.DrawLine(0, cy, clientSize.x, cy);
2945 break;
2946 }
2947 }
2948 }
2949 }
2950
2951 if (drawVRules)
2952 {
2953 wxRect firstItemRect;
2954 GetItemRect(0, firstItemRect);
2955
2956 if (GetItemRect(itemCount - 1, itemRect))
2957 {
2958 // this is a fix for bug 673394: erase the pixels which we would
2959 // otherwise leave on the screen
2960 static const int gap = 2;
2961 dc.SetPen(*wxTRANSPARENT_PEN);
2962 dc.SetBrush(wxBrush(GetBackgroundColour()));
2963 dc.DrawRectangle(0, firstItemRect.GetY() - gap,
2964 clientSize.GetWidth(), gap);
2965
2966 dc.SetPen(pen);
2967 dc.SetBrush(*wxTRANSPARENT_BRUSH);
2968
2969 const int numCols = GetColumnCount();
2970 wxVector<int> indexArray(numCols);
2971 if ( !ListView_GetColumnOrderArray(GetHwnd(),
2972 numCols,
2973 &indexArray[0]) )
2974 {
2975 wxFAIL_MSG( wxT("invalid column index array in OnPaint()") );
2976 return;
2977 }
2978
2979 int x = itemRect.GetX();
2980 for (int col = 0; col < numCols; col++)
2981 {
2982 int colWidth = GetColumnWidth(indexArray[col]);
2983 x += colWidth ;
2984 dc.DrawLine(x-1, firstItemRect.GetY() - gap,
2985 x-1, itemRect.GetBottom());
2986 }
2987 }
2988 }
2989 }
2990
2991 WXLRESULT
2992 wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
2993 {
2994 switch ( nMsg )
2995 {
2996 #ifdef WM_PRINT
2997 case WM_PRINT:
2998 // we should bypass our own WM_PRINT handling as we don't handle
2999 // PRF_CHILDREN flag, so leave it to the native control itself
3000 return MSWDefWindowProc(nMsg, wParam, lParam);
3001 #endif // WM_PRINT
3002
3003 case WM_CONTEXTMENU:
3004 // because this message is propagated upwards the child-parent
3005 // chain, we get it for the right clicks on the header window but
3006 // this is confusing in wx as right clicking there already
3007 // generates a separate wxEVT_COMMAND_LIST_COL_RIGHT_CLICK event
3008 // so just ignore them
3009 if ( (HWND)wParam == ListView_GetHeader(GetHwnd()) )
3010 return 0;
3011 //else: break
3012 }
3013
3014 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
3015 }
3016
3017 // ----------------------------------------------------------------------------
3018 // virtual list controls
3019 // ----------------------------------------------------------------------------
3020
3021 wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(col)) const
3022 {
3023 // this is a pure virtual function, in fact - which is not really pure
3024 // because the controls which are not virtual don't need to implement it
3025 wxFAIL_MSG( wxT("wxListCtrl::OnGetItemText not supposed to be called") );
3026
3027 return wxEmptyString;
3028 }
3029
3030 int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
3031 {
3032 wxCHECK_MSG(!GetImageList(wxIMAGE_LIST_SMALL),
3033 -1,
3034 wxT("List control has an image list, OnGetItemImage or OnGetItemColumnImage should be overridden."));
3035 return -1;
3036 }
3037
3038 int wxListCtrl::OnGetItemColumnImage(long item, long column) const
3039 {
3040 if (!column)
3041 return OnGetItemImage(item);
3042
3043 return -1;
3044 }
3045
3046 wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
3047 {
3048 wxASSERT_MSG( item >= 0 && item < GetItemCount(),
3049 wxT("invalid item index in OnGetItemAttr()") );
3050
3051 // no attributes by default
3052 return NULL;
3053 }
3054
3055 wxListItemAttr *wxListCtrl::DoGetItemColumnAttr(long item, long column) const
3056 {
3057 if ( IsVirtual() )
3058 return OnGetItemColumnAttr(item, column);
3059
3060 wxMSWListItemData * const data = MSWGetItemData(item);
3061 return data ? data->attr : NULL;
3062 }
3063
3064 void wxListCtrl::SetItemCount(long count)
3065 {
3066 wxASSERT_MSG( IsVirtual(), wxT("this is for virtual controls only") );
3067
3068 if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count,
3069 LVSICF_NOSCROLL | LVSICF_NOINVALIDATEALL) )
3070 {
3071 wxLogLastError(wxT("ListView_SetItemCount"));
3072 }
3073 m_count = count;
3074 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
3075 wxT("m_count should match ListView_GetItemCount"));
3076 }
3077
3078 void wxListCtrl::RefreshItem(long item)
3079 {
3080 RefreshItems(item, item);
3081 }
3082
3083 void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
3084 {
3085 ListView_RedrawItems(GetHwnd(), itemFrom, itemTo);
3086 }
3087
3088 // ----------------------------------------------------------------------------
3089 // wxWin <-> MSW items conversions
3090 // ----------------------------------------------------------------------------
3091
3092 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
3093 wxListItem& info,
3094 LV_ITEM& lvItem)
3095 {
3096 wxMSWListItemData *internaldata =
3097 (wxMSWListItemData *) lvItem.lParam;
3098
3099 if (internaldata)
3100 info.m_data = internaldata->lParam;
3101
3102 info.m_mask = 0;
3103 info.m_state = 0;
3104 info.m_stateMask = 0;
3105 info.m_itemId = lvItem.iItem;
3106
3107 long oldMask = lvItem.mask;
3108
3109 bool needText = false;
3110 if (hwndListCtrl != 0)
3111 {
3112 if ( lvItem.mask & LVIF_TEXT )
3113 needText = false;
3114 else
3115 needText = true;
3116
3117 if ( needText )
3118 {
3119 lvItem.pszText = new wxChar[513];
3120 lvItem.cchTextMax = 512;
3121 }
3122 lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
3123 ::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
3124 }
3125
3126 if ( lvItem.mask & LVIF_STATE )
3127 {
3128 info.m_mask |= wxLIST_MASK_STATE;
3129
3130 if ( lvItem.stateMask & LVIS_CUT)
3131 {
3132 info.m_stateMask |= wxLIST_STATE_CUT;
3133 if ( lvItem.state & LVIS_CUT )
3134 info.m_state |= wxLIST_STATE_CUT;
3135 }
3136 if ( lvItem.stateMask & LVIS_DROPHILITED)
3137 {
3138 info.m_stateMask |= wxLIST_STATE_DROPHILITED;
3139 if ( lvItem.state & LVIS_DROPHILITED )
3140 info.m_state |= wxLIST_STATE_DROPHILITED;
3141 }
3142 if ( lvItem.stateMask & LVIS_FOCUSED)
3143 {
3144 info.m_stateMask |= wxLIST_STATE_FOCUSED;
3145 if ( lvItem.state & LVIS_FOCUSED )
3146 info.m_state |= wxLIST_STATE_FOCUSED;
3147 }
3148 if ( lvItem.stateMask & LVIS_SELECTED)
3149 {
3150 info.m_stateMask |= wxLIST_STATE_SELECTED;
3151 if ( lvItem.state & LVIS_SELECTED )
3152 info.m_state |= wxLIST_STATE_SELECTED;
3153 }
3154 }
3155
3156 if ( lvItem.mask & LVIF_TEXT )
3157 {
3158 info.m_mask |= wxLIST_MASK_TEXT;
3159 info.m_text = lvItem.pszText;
3160 }
3161 if ( lvItem.mask & LVIF_IMAGE )
3162 {
3163 info.m_mask |= wxLIST_MASK_IMAGE;
3164 info.m_image = lvItem.iImage;
3165 }
3166 if ( lvItem.mask & LVIF_PARAM )
3167 info.m_mask |= wxLIST_MASK_DATA;
3168 if ( lvItem.mask & LVIF_DI_SETITEM )
3169 info.m_mask |= wxLIST_SET_ITEM;
3170 info.m_col = lvItem.iSubItem;
3171
3172 if (needText)
3173 {
3174 if (lvItem.pszText)
3175 delete[] lvItem.pszText;
3176 }
3177 lvItem.mask = oldMask;
3178 }
3179
3180 static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
3181 {
3182 if (stateMask & wxLIST_STATE_CUT)
3183 {
3184 lvItem.stateMask |= LVIS_CUT;
3185 if (state & wxLIST_STATE_CUT)
3186 lvItem.state |= LVIS_CUT;
3187 }
3188 if (stateMask & wxLIST_STATE_DROPHILITED)
3189 {
3190 lvItem.stateMask |= LVIS_DROPHILITED;
3191 if (state & wxLIST_STATE_DROPHILITED)
3192 lvItem.state |= LVIS_DROPHILITED;
3193 }
3194 if (stateMask & wxLIST_STATE_FOCUSED)
3195 {
3196 lvItem.stateMask |= LVIS_FOCUSED;
3197 if (state & wxLIST_STATE_FOCUSED)
3198 lvItem.state |= LVIS_FOCUSED;
3199 }
3200 if (stateMask & wxLIST_STATE_SELECTED)
3201 {
3202 lvItem.stateMask |= LVIS_SELECTED;
3203 if (state & wxLIST_STATE_SELECTED)
3204 lvItem.state |= LVIS_SELECTED;
3205 }
3206 }
3207
3208 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
3209 const wxListItem& info,
3210 LV_ITEM& lvItem)
3211 {
3212 if ( ctrl->InReportView() )
3213 {
3214 wxASSERT_MSG( 0 <= info.m_col && info.m_col < ctrl->GetColumnCount(),
3215 "wxListCtrl column index out of bounds" );
3216 }
3217 else // not in report view
3218 {
3219 wxASSERT_MSG( info.m_col == 0, "columns only exist in report view" );
3220 }
3221
3222 lvItem.iItem = (int) info.m_itemId;
3223
3224 lvItem.iImage = info.m_image;
3225 lvItem.stateMask = 0;
3226 lvItem.state = 0;
3227 lvItem.mask = 0;
3228 lvItem.iSubItem = info.m_col;
3229
3230 if (info.m_mask & wxLIST_MASK_STATE)
3231 {
3232 lvItem.mask |= LVIF_STATE;
3233
3234 wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
3235 }
3236
3237 if (info.m_mask & wxLIST_MASK_TEXT)
3238 {
3239 lvItem.mask |= LVIF_TEXT;
3240 if ( ctrl->HasFlag(wxLC_USER_TEXT) )
3241 {
3242 lvItem.pszText = LPSTR_TEXTCALLBACK;
3243 }
3244 else
3245 {
3246 // pszText is not const, hence the cast
3247 lvItem.pszText = (wxChar *)info.m_text.wx_str();
3248 if ( lvItem.pszText )
3249 lvItem.cchTextMax = info.m_text.length();
3250 else
3251 lvItem.cchTextMax = 0;
3252 }
3253 }
3254 if (info.m_mask & wxLIST_MASK_IMAGE)
3255 lvItem.mask |= LVIF_IMAGE;
3256 }
3257
3258 static void wxConvertToMSWListCol(HWND hwndList,
3259 int col,
3260 const wxListItem& item,
3261 LV_COLUMN& lvCol)
3262 {
3263 wxZeroMemory(lvCol);
3264
3265 if ( item.m_mask & wxLIST_MASK_TEXT )
3266 {
3267 lvCol.mask |= LVCF_TEXT;
3268 lvCol.pszText = (wxChar *)item.m_text.wx_str(); // cast is safe
3269 }
3270
3271 if ( item.m_mask & wxLIST_MASK_FORMAT )
3272 {
3273 lvCol.mask |= LVCF_FMT;
3274
3275 if ( item.m_format == wxLIST_FORMAT_LEFT )
3276 lvCol.fmt = LVCFMT_LEFT;
3277 else if ( item.m_format == wxLIST_FORMAT_RIGHT )
3278 lvCol.fmt = LVCFMT_RIGHT;
3279 else if ( item.m_format == wxLIST_FORMAT_CENTRE )
3280 lvCol.fmt = LVCFMT_CENTER;
3281 }
3282
3283 if ( item.m_mask & wxLIST_MASK_WIDTH )
3284 {
3285 lvCol.mask |= LVCF_WIDTH;
3286 if ( item.m_width == wxLIST_AUTOSIZE)
3287 lvCol.cx = LVSCW_AUTOSIZE;
3288 else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
3289 lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
3290 else
3291 lvCol.cx = item.m_width;
3292 }
3293
3294 // see comment at the end of wxListCtrl::GetColumn()
3295 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
3296 if ( item.m_mask & wxLIST_MASK_IMAGE )
3297 {
3298 if ( wxApp::GetComCtl32Version() >= 470 )
3299 {
3300 lvCol.mask |= LVCF_IMAGE;
3301
3302 // we use LVCFMT_BITMAP_ON_RIGHT because the images on the right
3303 // seem to be generally nicer than on the left and the generic
3304 // version only draws them on the right (we don't have a flag to
3305 // specify the image location anyhow)
3306 //
3307 // we don't use LVCFMT_COL_HAS_IMAGES because it doesn't seem to
3308 // make any difference in my tests -- but maybe we should?
3309 if ( item.m_image != -1 )
3310 {
3311 // as we're going to overwrite the format field, get its
3312 // current value first -- unless we want to overwrite it anyhow
3313 if ( !(lvCol.mask & LVCF_FMT) )
3314 {
3315 LV_COLUMN lvColOld;
3316 wxZeroMemory(lvColOld);
3317 lvColOld.mask = LVCF_FMT;
3318 if ( ListView_GetColumn(hwndList, col, &lvColOld) )
3319 {
3320 lvCol.fmt = lvColOld.fmt;
3321 }
3322
3323 lvCol.mask |= LVCF_FMT;
3324 }
3325
3326 lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT | LVCFMT_IMAGE;
3327 }
3328
3329 lvCol.iImage = item.m_image;
3330 }
3331 //else: it doesn't support item images anyhow
3332 }
3333 #endif // _WIN32_IE >= 0x0300
3334 }
3335
3336 #endif // wxUSE_LISTCTRL