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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
43 #include "wx/msw/private.h"
44
45 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
46 #include <ole2.h>
47 #include <shellapi.h>
48 #if _WIN32_WCE < 400
49 #include <aygshell.h>
50 #endif
51 #endif
52
53 // Currently gcc and watcom don't define NMLVFINDITEM, and DMC only defines
54 // it by its old name NM_FINDTIEM.
55 //
56 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(NMLVFINDITEM)
57 #define HAVE_NMLVFINDITEM 1
58 #elif defined(__DMC__) || defined(NM_FINDITEM)
59 #define HAVE_NMLVFINDITEM 1
60 #define NMLVFINDITEM NM_FINDITEM
61 #endif
62
63 // ----------------------------------------------------------------------------
64 // private functions
65 // ----------------------------------------------------------------------------
66
67 // convert our state and mask flags to LV_ITEM constants
68 static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
69
70 // convert wxListItem to LV_ITEM
71 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
72 const wxListItem& info, LV_ITEM& lvItem);
73
74 // convert LV_ITEM to wxListItem
75 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
76 wxListItem& info,
77 /* const */ LV_ITEM& lvItem);
78
79 // convert our wxListItem to LV_COLUMN
80 static void wxConvertToMSWListCol(HWND hwndList,
81 int col,
82 const wxListItem& item,
83 LV_COLUMN& lvCol);
84
85 // ----------------------------------------------------------------------------
86 // private helper classes
87 // ----------------------------------------------------------------------------
88
89 // We have to handle both fooW and fooA notifications in several cases
90 // because of broken comctl32.dll and/or unicows.dll. This class is used to
91 // convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
92 // LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
93 // by wxConvertToMSWListItem().
94 #if wxUSE_UNICODE
95 #define LV_ITEM_NATIVE LV_ITEMW
96 #define LV_ITEM_OTHER LV_ITEMA
97
98 #define LV_CONV_TO_WX cMB2WX
99 #define LV_CONV_BUF wxMB2WXbuf
100 #else // ANSI
101 #define LV_ITEM_NATIVE LV_ITEMA
102 #define LV_ITEM_OTHER LV_ITEMW
103
104 #define LV_CONV_TO_WX cWC2WX
105 #define LV_CONV_BUF wxWC2WXbuf
106 #endif // Unicode/ANSI
107
108 class wxLV_ITEM
109 {
110 public:
111 // default ctor, use Init() later
112 wxLV_ITEM() { m_buf = NULL; m_pItem = NULL; }
113
114 // init without conversion
115 void Init(LV_ITEM_NATIVE& item)
116 {
117 wxASSERT_MSG( !m_pItem, _T("Init() called twice?") );
118
119 m_pItem = &item;
120 }
121
122 // init with conversion
123 void Init(const LV_ITEM_OTHER& item)
124 {
125 // avoid unnecessary dynamic memory allocation, jjust make m_pItem
126 // point to our own m_item
127
128 // memcpy() can't work if the struct sizes are different
129 wxCOMPILE_TIME_ASSERT( sizeof(LV_ITEM_OTHER) == sizeof(LV_ITEM_NATIVE),
130 CodeCantWorkIfDiffSizes);
131
132 memcpy(&m_item, &item, sizeof(LV_ITEM_NATIVE));
133
134 // convert text from ANSI to Unicod if necessary
135 if ( (item.mask & LVIF_TEXT) && item.pszText )
136 {
137 m_buf = new LV_CONV_BUF(wxConvLocal.LV_CONV_TO_WX(item.pszText));
138 m_item.pszText = (wxChar *)m_buf->data();
139 }
140 }
141
142 // ctor without conversion
143 wxLV_ITEM(LV_ITEM_NATIVE& item) : m_buf(NULL), m_pItem(&item) { }
144
145 // ctor with conversion
146 wxLV_ITEM(LV_ITEM_OTHER& item) : m_buf(NULL)
147 {
148 Init(item);
149 }
150
151 ~wxLV_ITEM() { delete m_buf; }
152
153 // conversion to the real LV_ITEM
154 operator LV_ITEM_NATIVE&() const { return *m_pItem; }
155
156 private:
157 LV_CONV_BUF *m_buf;
158
159 LV_ITEM_NATIVE *m_pItem;
160 LV_ITEM_NATIVE m_item;
161
162 DECLARE_NO_COPY_CLASS(wxLV_ITEM)
163 };
164
165 ///////////////////////////////////////////////////////
166 // Problem:
167 // The MSW version had problems with SetTextColour() et
168 // al as the wxListItemAttr's were stored keyed on the
169 // item index. If a item was inserted anywhere but the end
170 // of the list the the text attributes (colour etc) for
171 // the following items were out of sync.
172 //
173 // Solution:
174 // Under MSW the only way to associate data with a List
175 // item independent of its position in the list is to
176 // store a pointer to it in its lParam attribute. However
177 // user programs are already using this (via the
178 // SetItemData() GetItemData() calls).
179 //
180 // However what we can do is store a pointer to a
181 // structure which contains the attributes we want *and*
182 // a lParam for the users data, e.g.
183 //
184 // class wxListItemInternalData
185 // {
186 // public:
187 // wxListItemAttr *attr;
188 // long lParam; // user data
189 // };
190 //
191 // To conserve memory, a wxListItemInternalData is
192 // only allocated for a LV_ITEM if text attributes or
193 // user data(lparam) are being set.
194
195
196 // class wxListItemInternalData
197 class wxListItemInternalData
198 {
199 public:
200 wxListItemAttr *attr;
201 LPARAM lParam; // user data
202
203 wxListItemInternalData() : attr(NULL), lParam(0) {}
204 ~wxListItemInternalData()
205 {
206 if (attr)
207 delete attr;
208 }
209
210 DECLARE_NO_COPY_CLASS(wxListItemInternalData)
211 };
212
213 // Get the internal data structure
214 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId);
215 static wxListItemInternalData *wxGetInternalData(const wxListCtrl *ctl, long itemId);
216 static wxListItemAttr *wxGetInternalDataAttr(const wxListCtrl *ctl, long itemId);
217 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId);
218
219
220 #if wxUSE_EXTENDED_RTTI
221 WX_DEFINE_FLAGS( wxListCtrlStyle )
222
223 wxBEGIN_FLAGS( wxListCtrlStyle )
224 // new style border flags, we put them first to
225 // use them for streaming out
226 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
227 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
228 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
229 wxFLAGS_MEMBER(wxBORDER_RAISED)
230 wxFLAGS_MEMBER(wxBORDER_STATIC)
231 wxFLAGS_MEMBER(wxBORDER_NONE)
232
233 // old style border flags
234 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
235 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
236 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
237 wxFLAGS_MEMBER(wxRAISED_BORDER)
238 wxFLAGS_MEMBER(wxSTATIC_BORDER)
239 wxFLAGS_MEMBER(wxBORDER)
240
241 // standard window styles
242 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
243 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
244 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
245 wxFLAGS_MEMBER(wxWANTS_CHARS)
246 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
247 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
248 wxFLAGS_MEMBER(wxVSCROLL)
249 wxFLAGS_MEMBER(wxHSCROLL)
250
251 wxFLAGS_MEMBER(wxLC_LIST)
252 wxFLAGS_MEMBER(wxLC_REPORT)
253 wxFLAGS_MEMBER(wxLC_ICON)
254 wxFLAGS_MEMBER(wxLC_SMALL_ICON)
255 wxFLAGS_MEMBER(wxLC_ALIGN_TOP)
256 wxFLAGS_MEMBER(wxLC_ALIGN_LEFT)
257 wxFLAGS_MEMBER(wxLC_AUTOARRANGE)
258 wxFLAGS_MEMBER(wxLC_USER_TEXT)
259 wxFLAGS_MEMBER(wxLC_EDIT_LABELS)
260 wxFLAGS_MEMBER(wxLC_NO_HEADER)
261 wxFLAGS_MEMBER(wxLC_SINGLE_SEL)
262 wxFLAGS_MEMBER(wxLC_SORT_ASCENDING)
263 wxFLAGS_MEMBER(wxLC_SORT_DESCENDING)
264 wxFLAGS_MEMBER(wxLC_VIRTUAL)
265
266 wxEND_FLAGS( wxListCtrlStyle )
267
268 IMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl,"wx/listctrl.h")
269
270 wxBEGIN_PROPERTIES_TABLE(wxListCtrl)
271 wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
272
273 wxPROPERTY_FLAGS( WindowStyle , wxListCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
274 wxEND_PROPERTIES_TABLE()
275
276 wxBEGIN_HANDLERS_TABLE(wxListCtrl)
277 wxEND_HANDLERS_TABLE()
278
279 wxCONSTRUCTOR_5( wxListCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
280
281 /*
282 TODO : Expose more information of a list's layout etc. via appropriate objects (a la NotebookPageInfo)
283 */
284 #else
285 IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
286 #endif
287
288 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
289 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
290
291 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
292
293 BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
294 EVT_PAINT(wxListCtrl::OnPaint)
295 END_EVENT_TABLE()
296
297 // ============================================================================
298 // implementation
299 // ============================================================================
300
301 // ----------------------------------------------------------------------------
302 // wxListCtrl construction
303 // ----------------------------------------------------------------------------
304
305 void wxListCtrl::Init()
306 {
307 m_imageListNormal = NULL;
308 m_imageListSmall = NULL;
309 m_imageListState = NULL;
310 m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = false;
311 m_colCount = 0;
312 m_count = 0;
313 m_ignoreChangeMessages = false;
314 m_textCtrl = NULL;
315 m_AnyInternalData = false;
316 m_hasAnyAttr = false;
317 }
318
319 bool wxListCtrl::Create(wxWindow *parent,
320 wxWindowID id,
321 const wxPoint& pos,
322 const wxSize& size,
323 long style,
324 const wxValidator& validator,
325 const wxString& name)
326 {
327 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
328 return false;
329
330 if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) )
331 return false;
332
333 // explicitly say that we want to use Unicode because otherwise we get ANSI
334 // versions of _some_ messages (notably LVN_GETDISPINFOA) in MSLU build
335 wxSetCCUnicodeFormat(GetHwnd());
336
337 // We must set the default text colour to the system/theme color, otherwise
338 // GetTextColour will always return black
339 SetTextColour(GetDefaultAttributes().colFg);
340
341 if ( InReportView() )
342 MSWSetExListStyles();
343
344 return true;
345 }
346
347 void wxListCtrl::MSWSetExListStyles()
348 {
349 // for comctl32.dll v 4.70+ we want to have some non default extended
350 // styles because it's prettier (and also because wxGTK does it like this)
351 if ( wxApp::GetComCtl32Version() >= 470 )
352 {
353 ::SendMessage
354 (
355 GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE, 0,
356 // LVS_EX_LABELTIP shouldn't be used under Windows CE where it's
357 // not defined in the SDK headers
358 #ifdef LVS_EX_LABELTIP
359 LVS_EX_LABELTIP |
360 #endif
361 LVS_EX_FULLROWSELECT |
362 LVS_EX_SUBITEMIMAGES |
363 // normally this should be governed by a style as it's probably not
364 // always appropriate, but we don't have any free styles left and
365 // it seems better to enable it by default than disable
366 LVS_EX_HEADERDRAGDROP
367 );
368 }
369 }
370
371 WXDWORD wxListCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
372 {
373 WXDWORD wstyle = wxControl::MSWGetStyle(style, exstyle);
374
375 wstyle |= LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
376
377 #ifdef __WXDEBUG__
378 size_t nModes = 0;
379
380 #define MAP_MODE_STYLE(wx, ms) \
381 if ( style & (wx) ) { wstyle |= (ms); nModes++; }
382 #else // !__WXDEBUG__
383 #define MAP_MODE_STYLE(wx, ms) \
384 if ( style & (wx) ) wstyle |= (ms);
385 #endif // __WXDEBUG__
386
387 MAP_MODE_STYLE(wxLC_ICON, LVS_ICON)
388 MAP_MODE_STYLE(wxLC_SMALL_ICON, LVS_SMALLICON)
389 MAP_MODE_STYLE(wxLC_LIST, LVS_LIST)
390 MAP_MODE_STYLE(wxLC_REPORT, LVS_REPORT)
391
392 wxASSERT_MSG( nModes == 1,
393 _T("wxListCtrl style should have exactly one mode bit set") );
394
395 #undef MAP_MODE_STYLE
396
397 if ( style & wxLC_ALIGN_LEFT )
398 wstyle |= LVS_ALIGNLEFT;
399
400 if ( style & wxLC_ALIGN_TOP )
401 wstyle |= LVS_ALIGNTOP;
402
403 if ( style & wxLC_AUTOARRANGE )
404 wstyle |= LVS_AUTOARRANGE;
405
406 if ( style & wxLC_NO_SORT_HEADER )
407 wstyle |= LVS_NOSORTHEADER;
408
409 if ( style & wxLC_NO_HEADER )
410 wstyle |= LVS_NOCOLUMNHEADER;
411
412 if ( style & wxLC_EDIT_LABELS )
413 wstyle |= LVS_EDITLABELS;
414
415 if ( style & wxLC_SINGLE_SEL )
416 wstyle |= LVS_SINGLESEL;
417
418 if ( style & wxLC_SORT_ASCENDING )
419 {
420 wstyle |= LVS_SORTASCENDING;
421
422 wxASSERT_MSG( !(style & wxLC_SORT_DESCENDING),
423 _T("can't sort in ascending and descending orders at once") );
424 }
425 else if ( style & wxLC_SORT_DESCENDING )
426 wstyle |= LVS_SORTDESCENDING;
427
428 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
429 if ( style & wxLC_VIRTUAL )
430 {
431 int ver = wxApp::GetComCtl32Version();
432 if ( ver < 470 )
433 {
434 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."),
435 ver / 100, ver % 100);
436 }
437
438 wstyle |= LVS_OWNERDATA;
439 }
440 #endif // ancient cygwin
441
442 return wstyle;
443 }
444
445 void wxListCtrl::UpdateStyle()
446 {
447 if ( GetHwnd() )
448 {
449 // The new window view style
450 DWORD dwStyleNew = MSWGetStyle(m_windowStyle, NULL);
451
452 // some styles are not returned by MSWGetStyle()
453 if ( IsShown() )
454 dwStyleNew |= WS_VISIBLE;
455
456 // Get the current window style.
457 DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
458
459 // we don't have wxVSCROLL style, but the list control may have it,
460 // don't change it then
461 dwStyleNew |= dwStyleOld & (WS_HSCROLL | WS_VSCROLL);
462
463 // Only set the window style if the view bits have changed.
464 if ( dwStyleOld != dwStyleNew )
465 {
466 ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
467
468 // if we switched to the report view, set the extended styles for
469 // it too
470 if ( !(dwStyleOld & LVS_REPORT) && (dwStyleNew & LVS_REPORT) )
471 MSWSetExListStyles();
472 }
473 }
474 }
475
476 void wxListCtrl::FreeAllInternalData()
477 {
478 if (m_AnyInternalData)
479 {
480 int n = GetItemCount();
481
482 m_ignoreChangeMessages = true;
483 for (int i = 0; i < n; i++)
484 wxDeleteInternalData(this, i);
485 m_ignoreChangeMessages = false;
486
487 m_AnyInternalData = false;
488 }
489 }
490
491 wxListCtrl::~wxListCtrl()
492 {
493 FreeAllInternalData();
494
495 if ( m_textCtrl )
496 {
497 m_textCtrl->UnsubclassWin();
498 m_textCtrl->SetHWND(0);
499 delete m_textCtrl;
500 m_textCtrl = NULL;
501 }
502
503 if (m_ownsImageListNormal)
504 delete m_imageListNormal;
505 if (m_ownsImageListSmall)
506 delete m_imageListSmall;
507 if (m_ownsImageListState)
508 delete m_imageListState;
509 }
510
511 // ----------------------------------------------------------------------------
512 // set/get/change style
513 // ----------------------------------------------------------------------------
514
515 // Add or remove a single window style
516 void wxListCtrl::SetSingleStyle(long style, bool add)
517 {
518 long flag = GetWindowStyleFlag();
519
520 // Get rid of conflicting styles
521 if ( add )
522 {
523 if ( style & wxLC_MASK_TYPE)
524 flag = flag & ~wxLC_MASK_TYPE;
525 if ( style & wxLC_MASK_ALIGN )
526 flag = flag & ~wxLC_MASK_ALIGN;
527 if ( style & wxLC_MASK_SORT )
528 flag = flag & ~wxLC_MASK_SORT;
529 }
530
531 if ( add )
532 flag |= style;
533 else
534 flag &= ~style;
535
536 SetWindowStyleFlag(flag);
537 }
538
539 // Set the whole window style
540 void wxListCtrl::SetWindowStyleFlag(long flag)
541 {
542 if ( flag != m_windowStyle )
543 {
544 m_windowStyle = flag;
545
546 UpdateStyle();
547
548 Refresh();
549 }
550 }
551
552 // ----------------------------------------------------------------------------
553 // accessors
554 // ----------------------------------------------------------------------------
555
556 /* static */ wxVisualAttributes
557 wxListCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
558 {
559 wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant);
560
561 // common controls have their own default font
562 attrs.font = wxGetCCDefaultFont();
563
564 return attrs;
565 }
566
567 // Sets the foreground, i.e. text, colour
568 bool wxListCtrl::SetForegroundColour(const wxColour& col)
569 {
570 if ( !wxWindow::SetForegroundColour(col) )
571 return false;
572
573 ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
574
575 return true;
576 }
577
578 // Sets the background colour
579 bool wxListCtrl::SetBackgroundColour(const wxColour& col)
580 {
581 if ( !wxWindow::SetBackgroundColour(col) )
582 return false;
583
584 // we set the same colour for both the "empty" background and the items
585 // background
586 COLORREF color = wxColourToRGB(col);
587 ListView_SetBkColor(GetHwnd(), color);
588 ListView_SetTextBkColor(GetHwnd(), color);
589
590 return true;
591 }
592
593 // Gets information about this column
594 bool wxListCtrl::GetColumn(int col, wxListItem& item) const
595 {
596 LV_COLUMN lvCol;
597 wxZeroMemory(lvCol);
598
599 lvCol.mask = LVCF_WIDTH;
600
601 if ( item.m_mask & wxLIST_MASK_TEXT )
602 {
603 lvCol.mask |= LVCF_TEXT;
604 lvCol.pszText = new wxChar[513];
605 lvCol.cchTextMax = 512;
606 }
607
608 if ( item.m_mask & wxLIST_MASK_FORMAT )
609 {
610 lvCol.mask |= LVCF_FMT;
611 }
612
613 if ( item.m_mask & wxLIST_MASK_IMAGE )
614 {
615 lvCol.mask |= LVCF_IMAGE;
616 }
617
618 bool success = ListView_GetColumn(GetHwnd(), col, &lvCol) != 0;
619
620 // item.m_subItem = lvCol.iSubItem;
621 item.m_width = lvCol.cx;
622
623 if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
624 {
625 item.m_text = lvCol.pszText;
626 delete[] lvCol.pszText;
627 }
628
629 if ( item.m_mask & wxLIST_MASK_FORMAT )
630 {
631 switch (lvCol.fmt & LVCFMT_JUSTIFYMASK) {
632 case LVCFMT_LEFT:
633 item.m_format = wxLIST_FORMAT_LEFT;
634 break;
635 case LVCFMT_RIGHT:
636 item.m_format = wxLIST_FORMAT_RIGHT;
637 break;
638 case LVCFMT_CENTER:
639 item.m_format = wxLIST_FORMAT_CENTRE;
640 break;
641 default:
642 item.m_format = -1; // Unknown?
643 break;
644 }
645 }
646
647 // the column images were not supported in older versions but how to check
648 // for this? we can't use _WIN32_IE because we always define it to a very
649 // high value, so see if another symbol which is only defined starting from
650 // comctl32.dll 4.70 is available
651 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
652 if ( item.m_mask & wxLIST_MASK_IMAGE )
653 {
654 item.m_image = lvCol.iImage;
655 }
656 #endif // LVCOLUMN::iImage exists
657
658 return success;
659 }
660
661 // Sets information about this column
662 bool wxListCtrl::SetColumn(int col, const wxListItem& item)
663 {
664 LV_COLUMN lvCol;
665 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
666
667 return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
668 }
669
670 // Gets the column width
671 int wxListCtrl::GetColumnWidth(int col) const
672 {
673 return ListView_GetColumnWidth(GetHwnd(), col);
674 }
675
676 // Sets the column width
677 bool wxListCtrl::SetColumnWidth(int col, int width)
678 {
679 if ( m_windowStyle & wxLC_LIST )
680 col = 0;
681
682 if ( width == wxLIST_AUTOSIZE)
683 width = LVSCW_AUTOSIZE;
684 else if ( width == wxLIST_AUTOSIZE_USEHEADER)
685 width = LVSCW_AUTOSIZE_USEHEADER;
686
687 return ListView_SetColumnWidth(GetHwnd(), col, width) != 0;
688 }
689
690 // ----------------------------------------------------------------------------
691 // columns order
692 // ----------------------------------------------------------------------------
693
694 int wxListCtrl::GetColumnOrder(int col) const
695 {
696 const int numCols = GetColumnCount();
697 wxCHECK_MSG( col >= 0 && col < numCols, -1, _T("Col index out of bounds") );
698
699 wxArrayInt indexArray(numCols);
700
701 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &indexArray[0]) )
702 return -1;
703
704 return indexArray[col];
705 }
706
707 int wxListCtrl::GetColumnIndexFromOrder(int order) const
708 {
709 const int numCols = GetColumnCount();
710 wxASSERT_MSG( order >= 0 && order < numCols, _T("Col order out of bounds") );
711
712 wxArrayInt indexArray(numCols);
713
714 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &indexArray[0]) )
715 return -1;
716
717 for ( int col = 0; col < numCols; col++ )
718 {
719 if ( indexArray[col] == order )
720 return col;
721 }
722
723 wxFAIL_MSG( _T("no column with with given order?") );
724
725 return -1;
726 }
727
728 // Gets the column order for all columns
729 wxArrayInt wxListCtrl::GetColumnsOrder() const
730 {
731 const int numCols = GetColumnCount();
732
733 wxArrayInt orders(numCols);
734 if ( !ListView_GetColumnOrderArray(GetHwnd(), numCols, &orders[0]) )
735 orders.clear();
736
737 return orders;
738 }
739
740 // Sets the column order for all columns
741 bool wxListCtrl::SetColumnsOrder(const wxArrayInt& orders)
742 {
743 const int numCols = GetColumnCount();
744
745 wxCHECK_MSG( orders.size() == (size_t)numCols, false,
746 _T("wrong number of elements in column orders array") );
747
748 return ListView_SetColumnOrderArray(GetHwnd(), numCols, &orders[0]) != 0;
749 }
750
751
752 // Gets the number of items that can fit vertically in the
753 // visible area of the list control (list or report view)
754 // or the total number of items in the list control (icon
755 // or small icon view)
756 int wxListCtrl::GetCountPerPage() const
757 {
758 return ListView_GetCountPerPage(GetHwnd());
759 }
760
761 // Gets the edit control for editing labels.
762 wxTextCtrl* wxListCtrl::GetEditControl() const
763 {
764 return m_textCtrl;
765 }
766
767 // Gets information about the item
768 bool wxListCtrl::GetItem(wxListItem& info) const
769 {
770 LV_ITEM lvItem;
771 wxZeroMemory(lvItem);
772
773 lvItem.iItem = info.m_itemId;
774 lvItem.iSubItem = info.m_col;
775
776 if ( info.m_mask & wxLIST_MASK_TEXT )
777 {
778 lvItem.mask |= LVIF_TEXT;
779 lvItem.pszText = new wxChar[513];
780 lvItem.cchTextMax = 512;
781 }
782 else
783 {
784 lvItem.pszText = NULL;
785 }
786
787 if (info.m_mask & wxLIST_MASK_DATA)
788 lvItem.mask |= LVIF_PARAM;
789
790 if (info.m_mask & wxLIST_MASK_IMAGE)
791 lvItem.mask |= LVIF_IMAGE;
792
793 if ( info.m_mask & wxLIST_MASK_STATE )
794 {
795 lvItem.mask |= LVIF_STATE;
796 wxConvertToMSWFlags(0, info.m_stateMask, lvItem);
797 }
798
799 bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
800 if ( !success )
801 {
802 wxLogError(_("Couldn't retrieve information about list control item %d."),
803 lvItem.iItem);
804 }
805 else
806 {
807 // give NULL as hwnd as we already have everything we need
808 wxConvertFromMSWListItem(NULL, info, lvItem);
809 }
810
811 if (lvItem.pszText)
812 delete[] lvItem.pszText;
813
814 return success;
815 }
816
817 // Sets information about the item
818 bool wxListCtrl::SetItem(wxListItem& info)
819 {
820 const long id = info.GetId();
821 wxCHECK_MSG( id >= 0 && id < GetItemCount(), false,
822 _T("invalid item index in SetItem") );
823
824 LV_ITEM item;
825 wxConvertToMSWListItem(this, info, item);
826
827 // we never update the lParam if it contains our pointer
828 // to the wxListItemInternalData structure
829 item.mask &= ~LVIF_PARAM;
830
831 // check if setting attributes or lParam
832 if (info.HasAttributes() || (info.m_mask & wxLIST_MASK_DATA))
833 {
834 // get internal item data
835 // perhaps a cache here ?
836 wxListItemInternalData *data = wxGetInternalData(this, id);
837
838 if (! data)
839 {
840 // need to set it
841 m_AnyInternalData = true;
842 data = new wxListItemInternalData();
843 item.lParam = (LPARAM) data;
844 item.mask |= LVIF_PARAM;
845 };
846
847
848 // user data
849 if (info.m_mask & wxLIST_MASK_DATA)
850 data->lParam = info.m_data;
851
852 // attributes
853 if ( info.HasAttributes() )
854 {
855 const wxListItemAttr& attrNew = *info.GetAttributes();
856
857 // don't overwrite the already set attributes if we have them
858 if ( data->attr )
859 data->attr->AssignFrom(attrNew);
860 else
861 data->attr = new wxListItemAttr(attrNew);
862 };
863 };
864
865
866 // we could be changing only the attribute in which case we don't need to
867 // call ListView_SetItem() at all
868 if ( item.mask )
869 {
870 item.cchTextMax = 0;
871 if ( !ListView_SetItem(GetHwnd(), &item) )
872 {
873 wxLogDebug(_T("ListView_SetItem() failed"));
874
875 return false;
876 }
877 }
878
879 // we need to update the item immediately to show the new image
880 bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
881
882 // check whether it has any custom attributes
883 if ( info.HasAttributes() )
884 {
885 m_hasAnyAttr = true;
886
887 // if the colour has changed, we must redraw the item
888 updateNow = true;
889 }
890
891 if ( updateNow )
892 {
893 // we need this to make the change visible right now
894 RefreshItem(item.iItem);
895 }
896
897 return true;
898 }
899
900 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
901 {
902 wxListItem info;
903 info.m_text = label;
904 info.m_mask = wxLIST_MASK_TEXT;
905 info.m_itemId = index;
906 info.m_col = col;
907 if ( imageId > -1 )
908 {
909 info.m_image = imageId;
910 info.m_mask |= wxLIST_MASK_IMAGE;
911 }
912 return SetItem(info);
913 }
914
915
916 // Gets the item state
917 int wxListCtrl::GetItemState(long item, long stateMask) const
918 {
919 wxListItem info;
920
921 info.m_mask = wxLIST_MASK_STATE;
922 info.m_stateMask = stateMask;
923 info.m_itemId = item;
924
925 if (!GetItem(info))
926 return 0;
927
928 return info.m_state;
929 }
930
931 // Sets the item state
932 bool wxListCtrl::SetItemState(long item, long state, long stateMask)
933 {
934 // NB: don't use SetItem() here as it doesn't work with the virtual list
935 // controls
936 LV_ITEM lvItem;
937 wxZeroMemory(lvItem);
938
939 wxConvertToMSWFlags(state, stateMask, lvItem);
940
941 const bool changingFocus = (stateMask & wxLIST_STATE_FOCUSED) &&
942 (state & wxLIST_STATE_FOCUSED);
943
944 // for the virtual list controls we need to refresh the previously focused
945 // item manually when changing focus without changing selection
946 // programmatically because otherwise it keeps its focus rectangle until
947 // next repaint (yet another comctl32 bug)
948 long focusOld;
949 if ( IsVirtual() && changingFocus )
950 {
951 focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
952 }
953 else
954 {
955 focusOld = -1;
956 }
957
958 if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
959 (WPARAM)item, (LPARAM)&lvItem) )
960 {
961 wxLogLastError(_T("ListView_SetItemState"));
962
963 return false;
964 }
965
966 if ( focusOld != -1 )
967 {
968 // no need to refresh the item if it was previously selected, it would
969 // only result in annoying flicker
970 if ( !(GetItemState(focusOld,
971 wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
972 {
973 RefreshItem(focusOld);
974 }
975 }
976
977 // we expect the selection anchor, i.e. the item from which multiple
978 // selection (such as performed with e.g. Shift-arrows) starts, to be the
979 // same as the currently focused item but the native control doesn't update
980 // it when we change focus and leaves at the last item it set itself focus
981 // to, so do it explicitly
982 if ( changingFocus && !HasFlag(wxLC_SINGLE_SEL) )
983 {
984 ListView_SetSelectionMark(GetHwnd(), item);
985 }
986
987 return true;
988 }
989
990 // Sets the item image
991 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
992 {
993 return SetItemColumnImage(item, 0, image);
994 }
995
996 // Sets the item image
997 bool wxListCtrl::SetItemColumnImage(long item, long column, int image)
998 {
999 wxListItem info;
1000
1001 info.m_mask = wxLIST_MASK_IMAGE;
1002 info.m_image = image;
1003 info.m_itemId = item;
1004 info.m_col = column;
1005
1006 return SetItem(info);
1007 }
1008
1009 // Gets the item text
1010 wxString wxListCtrl::GetItemText(long item) const
1011 {
1012 wxListItem info;
1013
1014 info.m_mask = wxLIST_MASK_TEXT;
1015 info.m_itemId = item;
1016
1017 if (!GetItem(info))
1018 return wxEmptyString;
1019 return info.m_text;
1020 }
1021
1022 // Sets the item text
1023 void wxListCtrl::SetItemText(long item, const wxString& str)
1024 {
1025 wxListItem info;
1026
1027 info.m_mask = wxLIST_MASK_TEXT;
1028 info.m_itemId = item;
1029 info.m_text = str;
1030
1031 SetItem(info);
1032 }
1033
1034 // Gets the item data
1035 wxUIntPtr wxListCtrl::GetItemData(long item) const
1036 {
1037 wxListItem info;
1038
1039 info.m_mask = wxLIST_MASK_DATA;
1040 info.m_itemId = item;
1041
1042 if (!GetItem(info))
1043 return 0;
1044 return info.m_data;
1045 }
1046
1047 // Sets the item data
1048 bool wxListCtrl::SetItemPtrData(long item, wxUIntPtr data)
1049 {
1050 wxListItem info;
1051
1052 info.m_mask = wxLIST_MASK_DATA;
1053 info.m_itemId = item;
1054 info.m_data = data;
1055
1056 return SetItem(info);
1057 }
1058
1059 wxRect wxListCtrl::GetViewRect() const
1060 {
1061 wxASSERT_MSG( !HasFlag(wxLC_REPORT | wxLC_LIST),
1062 _T("wxListCtrl::GetViewRect() only works in icon mode") );
1063
1064 RECT rc;
1065 if ( !ListView_GetViewRect(GetHwnd(), &rc) )
1066 {
1067 wxLogDebug(_T("ListView_GetViewRect() failed."));
1068
1069 wxZeroMemory(rc);
1070 }
1071
1072 wxRect rect;
1073 wxCopyRECTToRect(rc, rect);
1074
1075 return rect;
1076 }
1077
1078 // Gets the item rectangle
1079 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
1080 {
1081 return GetSubItemRect( item, wxLIST_GETSUBITEMRECT_WHOLEITEM, rect, code) ;
1082 }
1083
1084 /*!
1085 * Retrieve coordinates and size of a specified subitem of a listview control.
1086 * This function only works if the listview control is in the report mode.
1087 *
1088 * @param item : Item number
1089 * @param subItem : Subitem or column number, use -1 for the whole row including
1090 * all columns or subitems
1091 * @param rect : A pointer to an allocated wxRect object
1092 * @param code : Specify the part of the subitem coordinates you need. Choices are
1093 * wxLIST_RECT_BOUNDS, wxLIST_RECT_ICON, wxLIST_RECT_LABEL
1094 *
1095 * @return bool : True if successful.
1096 */
1097 bool wxListCtrl::GetSubItemRect(long item, long subItem, wxRect& rect, int code) const
1098 {
1099 RECT rectWin;
1100
1101 int codeWin;
1102 if ( code == wxLIST_RECT_BOUNDS )
1103 codeWin = LVIR_BOUNDS;
1104 else if ( code == wxLIST_RECT_ICON )
1105 codeWin = LVIR_ICON;
1106 else if ( code == wxLIST_RECT_LABEL )
1107 codeWin = LVIR_LABEL;
1108 else
1109 {
1110 wxFAIL_MSG( _T("incorrect code in GetItemRect() / GetSubItemRect()") );
1111 codeWin = LVIR_BOUNDS;
1112 }
1113
1114 bool success;
1115 if( subItem == wxLIST_GETSUBITEMRECT_WHOLEITEM)
1116 {
1117 success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
1118 }
1119 else if( subItem >= 0)
1120 {
1121 success = ListView_GetSubItemRect( GetHwnd(), (int) item, (int) subItem, codeWin, &rectWin) != 0;
1122 }
1123 else
1124 {
1125 wxFAIL_MSG( _T("incorrect subItem number in GetSubItemRect()") );
1126 return false;
1127 }
1128
1129 rect.x = rectWin.left;
1130 rect.y = rectWin.top;
1131 rect.width = rectWin.right - rectWin.left;
1132 rect.height = rectWin.bottom - rectWin.top;
1133
1134 return success;
1135 }
1136
1137
1138
1139
1140 // Gets the item position
1141 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
1142 {
1143 POINT pt;
1144
1145 bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
1146
1147 pos.x = pt.x; pos.y = pt.y;
1148 return success;
1149 }
1150
1151 // Sets the item position.
1152 bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
1153 {
1154 return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
1155 }
1156
1157 // Gets the number of items in the list control
1158 int wxListCtrl::GetItemCount() const
1159 {
1160 return m_count;
1161 }
1162
1163 wxSize wxListCtrl::GetItemSpacing() const
1164 {
1165 const int spacing = ListView_GetItemSpacing(GetHwnd(), (BOOL)HasFlag(wxLC_SMALL_ICON));
1166
1167 return wxSize(LOWORD(spacing), HIWORD(spacing));
1168 }
1169
1170 #if WXWIN_COMPATIBILITY_2_6
1171
1172 int wxListCtrl::GetItemSpacing(bool isSmall) const
1173 {
1174 return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
1175 }
1176
1177 #endif // WXWIN_COMPATIBILITY_2_6
1178
1179 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
1180 {
1181 wxListItem info;
1182 info.m_itemId = item;
1183 info.SetTextColour( col );
1184 SetItem( info );
1185 }
1186
1187 wxColour wxListCtrl::GetItemTextColour( long item ) const
1188 {
1189 wxColour col;
1190 wxListItemInternalData *data = wxGetInternalData(this, item);
1191 if ( data && data->attr )
1192 col = data->attr->GetTextColour();
1193
1194 return col;
1195 }
1196
1197 void wxListCtrl::SetItemBackgroundColour( long item, const wxColour &col )
1198 {
1199 wxListItem info;
1200 info.m_itemId = item;
1201 info.SetBackgroundColour( col );
1202 SetItem( info );
1203 }
1204
1205 wxColour wxListCtrl::GetItemBackgroundColour( long item ) const
1206 {
1207 wxColour col;
1208 wxListItemInternalData *data = wxGetInternalData(this, item);
1209 if ( data && data->attr )
1210 col = data->attr->GetBackgroundColour();
1211
1212 return col;
1213 }
1214
1215 void wxListCtrl::SetItemFont( long item, const wxFont &f )
1216 {
1217 wxListItem info;
1218 info.m_itemId = item;
1219 info.SetFont( f );
1220 SetItem( info );
1221 }
1222
1223 wxFont wxListCtrl::GetItemFont( long item ) const
1224 {
1225 wxFont f;
1226 wxListItemInternalData *data = wxGetInternalData(this, item);
1227 if ( data && data->attr )
1228 f = data->attr->GetFont();
1229
1230 return f;
1231 }
1232
1233 // Gets the number of selected items in the list control
1234 int wxListCtrl::GetSelectedItemCount() const
1235 {
1236 return ListView_GetSelectedCount(GetHwnd());
1237 }
1238
1239 // Gets the text colour of the listview
1240 wxColour wxListCtrl::GetTextColour() const
1241 {
1242 COLORREF ref = ListView_GetTextColor(GetHwnd());
1243 wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
1244 return col;
1245 }
1246
1247 // Sets the text colour of the listview
1248 void wxListCtrl::SetTextColour(const wxColour& col)
1249 {
1250 ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
1251 }
1252
1253 // Gets the index of the topmost visible item when in
1254 // list or report view
1255 long wxListCtrl::GetTopItem() const
1256 {
1257 return (long) ListView_GetTopIndex(GetHwnd());
1258 }
1259
1260 // Searches for an item, starting from 'item'.
1261 // 'geometry' is one of
1262 // wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
1263 // 'state' is a state bit flag, one or more of
1264 // wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
1265 // item can be -1 to find the first item that matches the
1266 // specified flags.
1267 // Returns the item or -1 if unsuccessful.
1268 long wxListCtrl::GetNextItem(long item, int geom, int state) const
1269 {
1270 long flags = 0;
1271
1272 if ( geom == wxLIST_NEXT_ABOVE )
1273 flags |= LVNI_ABOVE;
1274 if ( geom == wxLIST_NEXT_ALL )
1275 flags |= LVNI_ALL;
1276 if ( geom == wxLIST_NEXT_BELOW )
1277 flags |= LVNI_BELOW;
1278 if ( geom == wxLIST_NEXT_LEFT )
1279 flags |= LVNI_TOLEFT;
1280 if ( geom == wxLIST_NEXT_RIGHT )
1281 flags |= LVNI_TORIGHT;
1282
1283 if ( state & wxLIST_STATE_CUT )
1284 flags |= LVNI_CUT;
1285 if ( state & wxLIST_STATE_DROPHILITED )
1286 flags |= LVNI_DROPHILITED;
1287 if ( state & wxLIST_STATE_FOCUSED )
1288 flags |= LVNI_FOCUSED;
1289 if ( state & wxLIST_STATE_SELECTED )
1290 flags |= LVNI_SELECTED;
1291
1292 return (long) ListView_GetNextItem(GetHwnd(), item, flags);
1293 }
1294
1295
1296 wxImageList *wxListCtrl::GetImageList(int which) const
1297 {
1298 if ( which == wxIMAGE_LIST_NORMAL )
1299 {
1300 return m_imageListNormal;
1301 }
1302 else if ( which == wxIMAGE_LIST_SMALL )
1303 {
1304 return m_imageListSmall;
1305 }
1306 else if ( which == wxIMAGE_LIST_STATE )
1307 {
1308 return m_imageListState;
1309 }
1310 return NULL;
1311 }
1312
1313 void wxListCtrl::SetImageList(wxImageList *imageList, int which)
1314 {
1315 int flags = 0;
1316 if ( which == wxIMAGE_LIST_NORMAL )
1317 {
1318 flags = LVSIL_NORMAL;
1319 if (m_ownsImageListNormal) delete m_imageListNormal;
1320 m_imageListNormal = imageList;
1321 m_ownsImageListNormal = false;
1322 }
1323 else if ( which == wxIMAGE_LIST_SMALL )
1324 {
1325 flags = LVSIL_SMALL;
1326 if (m_ownsImageListSmall) delete m_imageListSmall;
1327 m_imageListSmall = imageList;
1328 m_ownsImageListSmall = false;
1329 }
1330 else if ( which == wxIMAGE_LIST_STATE )
1331 {
1332 flags = LVSIL_STATE;
1333 if (m_ownsImageListState) delete m_imageListState;
1334 m_imageListState = imageList;
1335 m_ownsImageListState = false;
1336 }
1337 (void) ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
1338 }
1339
1340 void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
1341 {
1342 SetImageList(imageList, which);
1343 if ( which == wxIMAGE_LIST_NORMAL )
1344 m_ownsImageListNormal = true;
1345 else if ( which == wxIMAGE_LIST_SMALL )
1346 m_ownsImageListSmall = true;
1347 else if ( which == wxIMAGE_LIST_STATE )
1348 m_ownsImageListState = true;
1349 }
1350
1351 // ----------------------------------------------------------------------------
1352 // Operations
1353 // ----------------------------------------------------------------------------
1354
1355 // Arranges the items
1356 bool wxListCtrl::Arrange(int flag)
1357 {
1358 UINT code = 0;
1359 if ( flag == wxLIST_ALIGN_LEFT )
1360 code = LVA_ALIGNLEFT;
1361 else if ( flag == wxLIST_ALIGN_TOP )
1362 code = LVA_ALIGNTOP;
1363 else if ( flag == wxLIST_ALIGN_DEFAULT )
1364 code = LVA_DEFAULT;
1365 else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
1366 code = LVA_SNAPTOGRID;
1367
1368 return (ListView_Arrange(GetHwnd(), code) != 0);
1369 }
1370
1371 // Deletes an item
1372 bool wxListCtrl::DeleteItem(long item)
1373 {
1374 if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
1375 {
1376 wxLogLastError(_T("ListView_DeleteItem"));
1377 return false;
1378 }
1379
1380 m_count--;
1381 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1382 wxT("m_count should match ListView_GetItemCount"));
1383
1384 // the virtual list control doesn't refresh itself correctly, help it
1385 if ( IsVirtual() )
1386 {
1387 // we need to refresh all the lines below the one which was deleted
1388 wxRect rectItem;
1389 if ( item > 0 && GetItemCount() )
1390 {
1391 GetItemRect(item - 1, rectItem);
1392 }
1393 else
1394 {
1395 rectItem.y =
1396 rectItem.height = 0;
1397 }
1398
1399 wxRect rectWin = GetRect();
1400 rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
1401 rectWin.y = rectItem.GetBottom();
1402
1403 RefreshRect(rectWin);
1404 }
1405
1406 return true;
1407 }
1408
1409 // Deletes all items
1410 bool wxListCtrl::DeleteAllItems()
1411 {
1412 return ListView_DeleteAllItems(GetHwnd()) != 0;
1413 }
1414
1415 // Deletes all items
1416 bool wxListCtrl::DeleteAllColumns()
1417 {
1418 while ( m_colCount > 0 )
1419 {
1420 if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
1421 {
1422 wxLogLastError(wxT("ListView_DeleteColumn"));
1423
1424 return false;
1425 }
1426
1427 m_colCount--;
1428 }
1429
1430 wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
1431
1432 return true;
1433 }
1434
1435 // Deletes a column
1436 bool wxListCtrl::DeleteColumn(int col)
1437 {
1438 bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
1439
1440 if ( success && (m_colCount > 0) )
1441 m_colCount --;
1442 return success;
1443 }
1444
1445 // Clears items, and columns if there are any.
1446 void wxListCtrl::ClearAll()
1447 {
1448 DeleteAllItems();
1449 if ( m_colCount > 0 )
1450 DeleteAllColumns();
1451 }
1452
1453 wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
1454 {
1455 wxASSERT( (textControlClass->IsKindOf(CLASSINFO(wxTextCtrl))) );
1456
1457 // ListView_EditLabel requires that the list has focus.
1458 SetFocus();
1459
1460 WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
1461 if ( !hWnd )
1462 {
1463 // failed to start editing
1464 return NULL;
1465 }
1466
1467 // [re]create the text control wrapping the HWND we got
1468 if ( m_textCtrl )
1469 {
1470 m_textCtrl->UnsubclassWin();
1471 m_textCtrl->SetHWND(0);
1472 delete m_textCtrl;
1473 }
1474
1475 m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
1476 m_textCtrl->SetHWND(hWnd);
1477 m_textCtrl->SubclassWin(hWnd);
1478 m_textCtrl->SetParent(this);
1479
1480 // we must disallow TABbing away from the control while the edit contol is
1481 // shown because this leaves it in some strange state (just try removing
1482 // this line and then pressing TAB while editing an item in listctrl
1483 // inside a panel)
1484 m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
1485
1486 return m_textCtrl;
1487 }
1488
1489 // End label editing, optionally cancelling the edit
1490 bool wxListCtrl::EndEditLabel(bool cancel)
1491 {
1492 // m_textCtrl is not always ready, ie. in EVT_LIST_BEGIN_LABEL_EDIT
1493 HWND hwnd = ListView_GetEditControl(GetHwnd());
1494 if ( !hwnd )
1495 return false;
1496
1497 if ( cancel )
1498 ::SetWindowText(hwnd, wxEmptyString); // dubious but better than nothing
1499
1500 // we shouldn't destroy the control ourselves according to MSDN, which
1501 // proposes WM_CANCELMODE to do this, but it doesn't seem to work
1502 //
1503 // posting WM_CLOSE to it does seem to work without any side effects
1504 ::PostMessage(hwnd, WM_CLOSE, 0, 0);
1505
1506 return true;
1507 }
1508
1509 // Ensures this item is visible
1510 bool wxListCtrl::EnsureVisible(long item)
1511 {
1512 return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != FALSE;
1513 }
1514
1515 // Find an item whose label matches this string, starting from the item after 'start'
1516 // or the beginning if 'start' is -1.
1517 long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
1518 {
1519 LV_FINDINFO findInfo;
1520
1521 findInfo.flags = LVFI_STRING;
1522 if ( partial )
1523 findInfo.flags |= LVFI_PARTIAL;
1524 findInfo.psz = str.wx_str();
1525
1526 // ListView_FindItem() excludes the first item from search and to look
1527 // through all the items you need to start from -1 which is unnatural and
1528 // inconsistent with the generic version - so we adjust the index
1529 if (start != -1)
1530 start --;
1531 return ListView_FindItem(GetHwnd(), (int) start, &findInfo);
1532 }
1533
1534 // Find an item whose data matches this data, starting from the item after 'start'
1535 // or the beginning if 'start' is -1.
1536 // NOTE : Lindsay Mathieson - 14-July-2002
1537 // No longer use ListView_FindItem as the data attribute is now stored
1538 // in a wxListItemInternalData structure refernced by the actual lParam
1539 long wxListCtrl::FindItem(long start, wxUIntPtr data)
1540 {
1541 long idx = start + 1;
1542 long count = GetItemCount();
1543
1544 while (idx < count)
1545 {
1546 if (GetItemData(idx) == data)
1547 return idx;
1548 idx++;
1549 };
1550
1551 return -1;
1552 }
1553
1554 // Find an item nearest this position in the specified direction, starting from
1555 // the item after 'start' or the beginning if 'start' is -1.
1556 long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
1557 {
1558 LV_FINDINFO findInfo;
1559
1560 findInfo.flags = LVFI_NEARESTXY;
1561 findInfo.pt.x = pt.x;
1562 findInfo.pt.y = pt.y;
1563 findInfo.vkDirection = VK_RIGHT;
1564
1565 if ( direction == wxLIST_FIND_UP )
1566 findInfo.vkDirection = VK_UP;
1567 else if ( direction == wxLIST_FIND_DOWN )
1568 findInfo.vkDirection = VK_DOWN;
1569 else if ( direction == wxLIST_FIND_LEFT )
1570 findInfo.vkDirection = VK_LEFT;
1571 else if ( direction == wxLIST_FIND_RIGHT )
1572 findInfo.vkDirection = VK_RIGHT;
1573
1574 return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
1575 }
1576
1577 // Determines which item (if any) is at the specified point,
1578 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
1579 long
1580 wxListCtrl::HitTest(const wxPoint& point, int& flags, long *ptrSubItem) const
1581 {
1582 LV_HITTESTINFO hitTestInfo;
1583 hitTestInfo.pt.x = (int) point.x;
1584 hitTestInfo.pt.y = (int) point.y;
1585
1586 long item;
1587 #ifdef LVM_SUBITEMHITTEST
1588 if ( ptrSubItem && wxApp::GetComCtl32Version() >= 470 )
1589 {
1590 item = ListView_SubItemHitTest(GetHwnd(), &hitTestInfo);
1591 *ptrSubItem = hitTestInfo.iSubItem;
1592 }
1593 else
1594 #endif // LVM_SUBITEMHITTEST
1595 {
1596 item = ListView_HitTest(GetHwnd(), &hitTestInfo);
1597 }
1598
1599 flags = 0;
1600
1601 if ( hitTestInfo.flags & LVHT_ABOVE )
1602 flags |= wxLIST_HITTEST_ABOVE;
1603 if ( hitTestInfo.flags & LVHT_BELOW )
1604 flags |= wxLIST_HITTEST_BELOW;
1605 if ( hitTestInfo.flags & LVHT_TOLEFT )
1606 flags |= wxLIST_HITTEST_TOLEFT;
1607 if ( hitTestInfo.flags & LVHT_TORIGHT )
1608 flags |= wxLIST_HITTEST_TORIGHT;
1609
1610 if ( hitTestInfo.flags & LVHT_NOWHERE )
1611 flags |= wxLIST_HITTEST_NOWHERE;
1612
1613 // note a bug or at least a very strange feature of comtl32.dll (tested
1614 // with version 4.0 under Win95 and 6.0 under Win 2003): if you click to
1615 // the right of the item label, ListView_HitTest() returns a combination of
1616 // LVHT_ONITEMICON, LVHT_ONITEMLABEL and LVHT_ONITEMSTATEICON -- filter out
1617 // the bits which don't make sense
1618 if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
1619 {
1620 flags |= wxLIST_HITTEST_ONITEMLABEL;
1621
1622 // do not translate LVHT_ONITEMICON here, as per above
1623 }
1624 else
1625 {
1626 if ( hitTestInfo.flags & LVHT_ONITEMICON )
1627 flags |= wxLIST_HITTEST_ONITEMICON;
1628 if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
1629 flags |= wxLIST_HITTEST_ONITEMSTATEICON;
1630 }
1631
1632 return item;
1633 }
1634
1635
1636 // Inserts an item, returning the index of the new item if successful,
1637 // -1 otherwise.
1638 long wxListCtrl::InsertItem(const wxListItem& info)
1639 {
1640 wxASSERT_MSG( !IsVirtual(), _T("can't be used with virtual controls") );
1641
1642 LV_ITEM item;
1643 wxConvertToMSWListItem(this, info, item);
1644 item.mask &= ~LVIF_PARAM;
1645
1646 // check wether we need to allocate our internal data
1647 bool needInternalData = ((info.m_mask & wxLIST_MASK_DATA) || info.HasAttributes());
1648 if (needInternalData)
1649 {
1650 m_AnyInternalData = true;
1651 item.mask |= LVIF_PARAM;
1652
1653 // internal stucture that manages data
1654 wxListItemInternalData *data = new wxListItemInternalData();
1655 item.lParam = (LPARAM) data;
1656
1657 if (info.m_mask & wxLIST_MASK_DATA)
1658 data->lParam = info.m_data;
1659
1660 // check whether it has any custom attributes
1661 if ( info.HasAttributes() )
1662 {
1663 // take copy of attributes
1664 data->attr = new wxListItemAttr(*info.GetAttributes());
1665
1666 // and remember that we have some now...
1667 m_hasAnyAttr = true;
1668 }
1669 };
1670
1671 long rv = ListView_InsertItem(GetHwnd(), & item);
1672
1673 m_count++;
1674 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1675 wxT("m_count should match ListView_GetItemCount"));
1676
1677 return rv;
1678 }
1679
1680 long wxListCtrl::InsertItem(long index, const wxString& label)
1681 {
1682 wxListItem info;
1683 info.m_text = label;
1684 info.m_mask = wxLIST_MASK_TEXT;
1685 info.m_itemId = index;
1686 return InsertItem(info);
1687 }
1688
1689 // Inserts an image item
1690 long wxListCtrl::InsertItem(long index, int imageIndex)
1691 {
1692 wxListItem info;
1693 info.m_image = imageIndex;
1694 info.m_mask = wxLIST_MASK_IMAGE;
1695 info.m_itemId = index;
1696 return InsertItem(info);
1697 }
1698
1699 // Inserts an image/string item
1700 long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
1701 {
1702 wxListItem info;
1703 info.m_image = imageIndex;
1704 info.m_text = label;
1705 info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
1706 info.m_itemId = index;
1707 return InsertItem(info);
1708 }
1709
1710 // For list view mode (only), inserts a column.
1711 long wxListCtrl::InsertColumn(long col, const wxListItem& item)
1712 {
1713 LV_COLUMN lvCol;
1714 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
1715
1716 if ( !(lvCol.mask & LVCF_WIDTH) )
1717 {
1718 // always give some width to the new column: this one is compatible
1719 // with the generic version
1720 lvCol.mask |= LVCF_WIDTH;
1721 lvCol.cx = 80;
1722 }
1723
1724 long n = ListView_InsertColumn(GetHwnd(), col, &lvCol);
1725 if ( n != -1 )
1726 {
1727 m_colCount++;
1728 }
1729 else // failed to insert?
1730 {
1731 wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
1732 lvCol.pszText);
1733 }
1734
1735 return n;
1736 }
1737
1738 long wxListCtrl::InsertColumn(long col,
1739 const wxString& heading,
1740 int format,
1741 int width)
1742 {
1743 wxListItem item;
1744 item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
1745 item.m_text = heading;
1746 if ( width > -1 )
1747 {
1748 item.m_mask |= wxLIST_MASK_WIDTH;
1749 item.m_width = width;
1750 }
1751 item.m_format = format;
1752
1753 return InsertColumn(col, item);
1754 }
1755
1756 // scroll the control by the given number of pixels (exception: in list view,
1757 // dx is interpreted as number of columns)
1758 bool wxListCtrl::ScrollList(int dx, int dy)
1759 {
1760 if ( !ListView_Scroll(GetHwnd(), dx, dy) )
1761 {
1762 wxLogDebug(_T("ListView_Scroll(%d, %d) failed"), dx, dy);
1763
1764 return false;
1765 }
1766
1767 return true;
1768 }
1769
1770 // Sort items.
1771
1772 // fn is a function which takes 3 long arguments: item1, item2, data.
1773 // item1 is the long data associated with a first item (NOT the index).
1774 // item2 is the long data associated with a second item (NOT the index).
1775 // data is the same value as passed to SortItems.
1776 // The return value is a negative number if the first item should precede the second
1777 // item, a positive number of the second item should precede the first,
1778 // or zero if the two items are equivalent.
1779
1780 // data is arbitrary data to be passed to the sort function.
1781
1782 // Internal structures for proxying the user compare function
1783 // so that we can pass it the *real* user data
1784
1785 // translate lParam data and call user func
1786 struct wxInternalDataSort
1787 {
1788 wxListCtrlCompare user_fn;
1789 long data;
1790 };
1791
1792 int CALLBACK wxInternalDataCompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
1793 {
1794 struct wxInternalDataSort *internalData = (struct wxInternalDataSort *) lParamSort;
1795
1796 wxListItemInternalData *data1 = (wxListItemInternalData *) lParam1;
1797 wxListItemInternalData *data2 = (wxListItemInternalData *) lParam2;
1798
1799 long d1 = (data1 == NULL ? 0 : data1->lParam);
1800 long d2 = (data2 == NULL ? 0 : data2->lParam);
1801
1802 return internalData->user_fn(d1, d2, internalData->data);
1803
1804 }
1805
1806 bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
1807 {
1808 struct wxInternalDataSort internalData;
1809 internalData.user_fn = fn;
1810 internalData.data = data;
1811
1812 // WPARAM cast is needed for mingw/cygwin
1813 if ( !ListView_SortItems(GetHwnd(),
1814 wxInternalDataCompareFunc,
1815 (WPARAM) &internalData) )
1816 {
1817 wxLogDebug(_T("ListView_SortItems() failed"));
1818
1819 return false;
1820 }
1821
1822 return true;
1823 }
1824
1825
1826
1827 // ----------------------------------------------------------------------------
1828 // message processing
1829 // ----------------------------------------------------------------------------
1830
1831 bool wxListCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
1832 {
1833 if ( msg->message == WM_KEYDOWN )
1834 {
1835 // Only eat VK_RETURN if not being used by the application in
1836 // conjunction with modifiers
1837 if ( msg->wParam == VK_RETURN && !wxIsAnyModifierDown() )
1838 {
1839 // we need VK_RETURN to generate wxEVT_COMMAND_LIST_ITEM_ACTIVATED
1840 return false;
1841 }
1842 }
1843 return wxControl::MSWShouldPreProcessMessage(msg);
1844 }
1845
1846 bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
1847 {
1848 const int id = (signed short)id_;
1849 if (cmd == EN_UPDATE)
1850 {
1851 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
1852 event.SetEventObject( this );
1853 ProcessCommand(event);
1854 return true;
1855 }
1856 else if (cmd == EN_KILLFOCUS)
1857 {
1858 wxCommandEvent event(wxEVT_KILL_FOCUS, id);
1859 event.SetEventObject( this );
1860 ProcessCommand(event);
1861 return true;
1862 }
1863 else
1864 return false;
1865 }
1866
1867 // utility used by wxListCtrl::MSWOnNotify and by wxDataViewHeaderWindowMSW::MSWOnNotify
1868 int WXDLLIMPEXP_CORE wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick)
1869 {
1870 // find the column clicked: we have to search for it ourselves as the
1871 // notification message doesn't provide this info
1872
1873 // where did the click occur?
1874 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
1875 if ( nmhdr->code == GN_CONTEXTMENU )
1876 {
1877 *ptClick = ((NMRGINFO*)nmhdr)->ptAction;
1878 }
1879 else
1880 #endif //__WXWINCE__
1881 if ( !::GetCursorPos(ptClick) )
1882 {
1883 wxLogLastError(_T("GetCursorPos"));
1884 }
1885
1886 // we need to use listctrl coordinates for the event point so this is what
1887 // we return in ptClick, but for comparison with Header_GetItemRect()
1888 // result below we need to use header window coordinates
1889 POINT ptClickHeader = *ptClick;
1890 if ( !::ScreenToClient(nmhdr->hwndFrom, &ptClickHeader) )
1891 {
1892 wxLogLastError(_T("ScreenToClient(listctrl header)"));
1893 }
1894
1895 if ( !::ScreenToClient(::GetParent(nmhdr->hwndFrom), ptClick) )
1896 {
1897 wxLogLastError(_T("ScreenToClient(listctrl)"));
1898 }
1899
1900 const int colCount = Header_GetItemCount(nmhdr->hwndFrom);
1901 for ( int col = 0; col < colCount; col++ )
1902 {
1903 RECT rect;
1904 if ( Header_GetItemRect(nmhdr->hwndFrom, col, &rect) )
1905 {
1906 if ( ::PtInRect(&rect, ptClickHeader) )
1907 {
1908 return col;
1909 }
1910 }
1911 }
1912
1913 return wxNOT_FOUND;
1914 }
1915
1916 bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
1917 {
1918
1919 // prepare the event
1920 // -----------------
1921
1922 wxListEvent event(wxEVT_NULL, m_windowId);
1923 event.SetEventObject(this);
1924
1925 wxEventType eventType = wxEVT_NULL;
1926
1927 NMHDR *nmhdr = (NMHDR *)lParam;
1928
1929 // if your compiler is as broken as this, you should really change it: this
1930 // code is needed for normal operation! #ifdef below is only useful for
1931 // automatic rebuilds which are done with a very old compiler version
1932 #ifdef HDN_BEGINTRACKA
1933
1934 // check for messages from the header (in report view)
1935 HWND hwndHdr = ListView_GetHeader(GetHwnd());
1936
1937 // is it a message from the header?
1938 if ( nmhdr->hwndFrom == hwndHdr )
1939 {
1940 HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
1941
1942 event.m_itemIndex = -1;
1943
1944 switch ( nmhdr->code )
1945 {
1946 // yet another comctl32.dll bug: under NT/W2K it sends Unicode
1947 // TRACK messages even to ANSI programs: on my system I get
1948 // HDN_BEGINTRACKW and HDN_ENDTRACKA and no HDN_TRACK at all!
1949 //
1950 // work around is to simply catch both versions and hope that it
1951 // works (why should this message exist in ANSI and Unicode is
1952 // beyond me as it doesn't deal with strings at all...)
1953 //
1954 // note that fr HDN_TRACK another possibility could be to use
1955 // HDN_ITEMCHANGING but it is sent even after HDN_ENDTRACK and when
1956 // something other than the item width changes so we'd have to
1957 // filter out the unwanted events then
1958 case HDN_BEGINTRACKA:
1959 case HDN_BEGINTRACKW:
1960 eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
1961 // fall through
1962
1963 case HDN_TRACKA:
1964 case HDN_TRACKW:
1965 if ( eventType == wxEVT_NULL )
1966 eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
1967 // fall through
1968
1969 case HDN_ENDTRACKA:
1970 case HDN_ENDTRACKW:
1971 if ( eventType == wxEVT_NULL )
1972 eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
1973
1974 event.m_item.m_width = nmHDR->pitem->cxy;
1975 event.m_col = nmHDR->iItem;
1976 break;
1977
1978 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
1979 case GN_CONTEXTMENU:
1980 #endif //__WXWINCE__
1981 case NM_RCLICK:
1982 {
1983 POINT ptClick;
1984
1985 eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
1986 event.m_col = wxMSWGetColumnClicked(nmhdr, &ptClick);
1987 event.m_pointDrag.x = ptClick.x;
1988 event.m_pointDrag.y = ptClick.y;
1989 }
1990 break;
1991
1992 case HDN_GETDISPINFOW:
1993 // letting Windows XP handle this message results in mysterious
1994 // crashes in comctl32.dll seemingly because of bad message
1995 // parameters
1996 //
1997 // I have no idea what is the real cause of the bug (which is,
1998 // just to make things interesting, impossible to reproduce
1999 // reliably) but ignoring all these messages does fix it and
2000 // doesn't seem to have any negative consequences
2001 return true;
2002
2003 default:
2004 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2005 }
2006 }
2007 else
2008 #endif // defined(HDN_BEGINTRACKA)
2009 if ( nmhdr->hwndFrom == GetHwnd() )
2010 {
2011 // almost all messages use NM_LISTVIEW
2012 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
2013
2014 const int iItem = nmLV->iItem;
2015
2016
2017 // FreeAllInternalData will cause LVN_ITEMCHANG* messages, which can be
2018 // ignored for efficiency. It is done here because the internal data is in the
2019 // process of being deleted so we don't want to try and access it below.
2020 if ( m_ignoreChangeMessages &&
2021 ( (nmLV->hdr.code == LVN_ITEMCHANGED) ||
2022 (nmLV->hdr.code == LVN_ITEMCHANGING)) )
2023 {
2024 return true;
2025 }
2026
2027
2028 // If we have a valid item then check if there is a data value
2029 // associated with it and put it in the event.
2030 if ( iItem >= 0 && iItem < GetItemCount() )
2031 {
2032 wxListItemInternalData *internaldata =
2033 wxGetInternalData(GetHwnd(), iItem);
2034
2035 if ( internaldata )
2036 event.m_item.m_data = internaldata->lParam;
2037 }
2038
2039 bool processed = true;
2040 switch ( nmhdr->code )
2041 {
2042 case LVN_BEGINRDRAG:
2043 eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
2044 // fall through
2045
2046 case LVN_BEGINDRAG:
2047 if ( eventType == wxEVT_NULL )
2048 {
2049 eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
2050 }
2051
2052 event.m_itemIndex = iItem;
2053 event.m_pointDrag.x = nmLV->ptAction.x;
2054 event.m_pointDrag.y = nmLV->ptAction.y;
2055 break;
2056
2057 // NB: we have to handle both *A and *W versions here because some
2058 // versions of comctl32.dll send ANSI messages even to the
2059 // Unicode windows
2060 case LVN_BEGINLABELEDITA:
2061 case LVN_BEGINLABELEDITW:
2062 {
2063 wxLV_ITEM item;
2064 if ( nmhdr->code == LVN_BEGINLABELEDITA )
2065 {
2066 item.Init(((LV_DISPINFOA *)lParam)->item);
2067 }
2068 else // LVN_BEGINLABELEDITW
2069 {
2070 item.Init(((LV_DISPINFOW *)lParam)->item);
2071 }
2072
2073 eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
2074 wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
2075 event.m_itemIndex = event.m_item.m_itemId;
2076 }
2077 break;
2078
2079 case LVN_ENDLABELEDITA:
2080 case LVN_ENDLABELEDITW:
2081 {
2082 wxLV_ITEM item;
2083 if ( nmhdr->code == LVN_ENDLABELEDITA )
2084 {
2085 item.Init(((LV_DISPINFOA *)lParam)->item);
2086 }
2087 else // LVN_ENDLABELEDITW
2088 {
2089 item.Init(((LV_DISPINFOW *)lParam)->item);
2090 }
2091
2092 // was editing cancelled?
2093 const LV_ITEM& lvi = (LV_ITEM)item;
2094 if ( !lvi.pszText || lvi.iItem == -1 )
2095 {
2096 // don't keep a stale wxTextCtrl around
2097 if ( m_textCtrl )
2098 {
2099 // EDIT control will be deleted by the list control itself so
2100 // prevent us from deleting it as well
2101 m_textCtrl->UnsubclassWin();
2102 m_textCtrl->SetHWND(0);
2103 delete m_textCtrl;
2104 m_textCtrl = NULL;
2105 }
2106
2107 event.SetEditCanceled(true);
2108 }
2109
2110 eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
2111 wxConvertFromMSWListItem(NULL, event.m_item, item);
2112 event.m_itemIndex = event.m_item.m_itemId;
2113 }
2114 break;
2115
2116 case LVN_COLUMNCLICK:
2117 eventType = wxEVT_COMMAND_LIST_COL_CLICK;
2118 event.m_itemIndex = -1;
2119 event.m_col = nmLV->iSubItem;
2120 break;
2121
2122 case LVN_DELETEALLITEMS:
2123 eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
2124 event.m_itemIndex = -1;
2125 break;
2126
2127 case LVN_DELETEITEM:
2128 if ( m_count == 0 )
2129 {
2130 // this should be prevented by the post-processing code
2131 // below, but "just in case"
2132 return false;
2133 }
2134
2135 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
2136 event.m_itemIndex = iItem;
2137 // delete the assoicated internal data
2138 wxDeleteInternalData(this, iItem);
2139 break;
2140
2141 case LVN_INSERTITEM:
2142 eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
2143 event.m_itemIndex = iItem;
2144 break;
2145
2146 case LVN_ITEMCHANGED:
2147 // we translate this catch all message into more interesting
2148 // (and more easy to process) wxWidgets events
2149
2150 // first of all, we deal with the state change events only and
2151 // only for valid items (item == -1 for the virtual list
2152 // control)
2153 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
2154 {
2155 // temp vars for readability
2156 const UINT stOld = nmLV->uOldState;
2157 const UINT stNew = nmLV->uNewState;
2158
2159 event.m_item.SetId(iItem);
2160 event.m_item.SetMask(wxLIST_MASK_TEXT |
2161 wxLIST_MASK_IMAGE |
2162 wxLIST_MASK_DATA);
2163 GetItem(event.m_item);
2164
2165 // has the focus changed?
2166 if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
2167 {
2168 eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
2169 event.m_itemIndex = iItem;
2170 }
2171
2172 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
2173 {
2174 if ( eventType != wxEVT_NULL )
2175 {
2176 // focus and selection have both changed: send the
2177 // focus event from here and the selection one
2178 // below
2179 event.SetEventType(eventType);
2180 (void)HandleWindowEvent(event);
2181 }
2182 else // no focus event to send
2183 {
2184 // then need to set m_itemIndex as it wasn't done
2185 // above
2186 event.m_itemIndex = iItem;
2187 }
2188
2189 eventType = stNew & LVIS_SELECTED
2190 ? wxEVT_COMMAND_LIST_ITEM_SELECTED
2191 : wxEVT_COMMAND_LIST_ITEM_DESELECTED;
2192 }
2193 }
2194
2195 if ( eventType == wxEVT_NULL )
2196 {
2197 // not an interesting event for us
2198 return false;
2199 }
2200
2201 break;
2202
2203 case LVN_KEYDOWN:
2204 {
2205 LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
2206 WORD wVKey = info->wVKey;
2207
2208 // get the current selection
2209 long lItem = GetNextItem(-1,
2210 wxLIST_NEXT_ALL,
2211 wxLIST_STATE_SELECTED);
2212
2213 // <Enter> or <Space> activate the selected item if any (but
2214 // not with Shift and/or Ctrl as then they have a predefined
2215 // meaning for the list view)
2216 if ( lItem != -1 &&
2217 (wVKey == VK_RETURN || wVKey == VK_SPACE) &&
2218 !(wxIsShiftDown() || wxIsCtrlDown()) )
2219 {
2220 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2221 }
2222 else
2223 {
2224 eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
2225
2226 // wxCharCodeMSWToWX() returns 0 if the key is an ASCII
2227 // value which should be used as is
2228 int code = wxCharCodeMSWToWX(wVKey);
2229 event.m_code = code ? code : wVKey;
2230 }
2231
2232 event.m_itemIndex =
2233 event.m_item.m_itemId = lItem;
2234
2235 if ( lItem != -1 )
2236 {
2237 // fill the other fields too
2238 event.m_item.m_text = GetItemText(lItem);
2239 event.m_item.m_data = GetItemData(lItem);
2240 }
2241 }
2242 break;
2243
2244 case NM_DBLCLK:
2245 // if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
2246 // anything else
2247 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2248 {
2249 return true;
2250 }
2251
2252 // else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
2253 // if it happened on an item (and not on empty place)
2254 if ( iItem == -1 )
2255 {
2256 // not on item
2257 return false;
2258 }
2259
2260 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2261 event.m_itemIndex = iItem;
2262 event.m_item.m_text = GetItemText(iItem);
2263 event.m_item.m_data = GetItemData(iItem);
2264 break;
2265
2266 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2267 case GN_CONTEXTMENU:
2268 #endif //__WXWINCE__
2269 case NM_RCLICK:
2270 // if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
2271 // don't do anything else
2272 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2273 {
2274 return true;
2275 }
2276
2277 // else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
2278 LV_HITTESTINFO lvhti;
2279 wxZeroMemory(lvhti);
2280
2281 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2282 if(nmhdr->code == GN_CONTEXTMENU) {
2283 lvhti.pt = ((NMRGINFO*)nmhdr)->ptAction;
2284 } else
2285 #endif //__WXWINCE__
2286 ::GetCursorPos(&(lvhti.pt));
2287 ::ScreenToClient(GetHwnd(),&(lvhti.pt));
2288 if ( ListView_HitTest(GetHwnd(),&lvhti) != -1 )
2289 {
2290 if ( lvhti.flags & LVHT_ONITEM )
2291 {
2292 eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
2293 event.m_itemIndex = lvhti.iItem;
2294 event.m_pointDrag.x = lvhti.pt.x;
2295 event.m_pointDrag.y = lvhti.pt.y;
2296 }
2297 }
2298 break;
2299
2300 #ifdef NM_CUSTOMDRAW
2301 case NM_CUSTOMDRAW:
2302 *result = OnCustomDraw(lParam);
2303
2304 return *result != CDRF_DODEFAULT;
2305 #endif // _WIN32_IE >= 0x300
2306
2307 case LVN_ODCACHEHINT:
2308 {
2309 const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
2310
2311 eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
2312
2313 // we get some really stupid cache hints like ones for
2314 // items in range 0..0 for an empty control or, after
2315 // deleting an item, for items in invalid range -- filter
2316 // this garbage out
2317 if ( cacheHint->iFrom > cacheHint->iTo )
2318 return false;
2319
2320 event.m_oldItemIndex = cacheHint->iFrom;
2321
2322 const long iMax = GetItemCount();
2323 event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
2324 : iMax - 1;
2325 }
2326 break;
2327
2328 #ifdef HAVE_NMLVFINDITEM
2329 case LVN_ODFINDITEM:
2330 // this message is only used with the virtual list control but
2331 // even there we don't want to always use it: in a control with
2332 // sufficiently big number of items (defined as > 1000 here),
2333 // accidentally pressing a key could result in hanging an
2334 // application waiting while it performs linear search
2335 if ( IsVirtual() && GetItemCount() <= 1000 )
2336 {
2337 NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam;
2338
2339 // no match by default
2340 *result = -1;
2341
2342 // we only handle string-based searches here
2343 //
2344 // TODO: what about LVFI_PARTIAL, should we handle this?
2345 if ( !(pFindInfo->lvfi.flags & LVFI_STRING) )
2346 {
2347 return false;
2348 }
2349
2350 const wxChar * const searchstr = pFindInfo->lvfi.psz;
2351 const size_t len = wxStrlen(searchstr);
2352
2353 // this is the first item we should examine, search from it
2354 // wrapping if necessary
2355 const int startPos = pFindInfo->iStart;
2356 const int maxPos = GetItemCount();
2357 wxCHECK_MSG( startPos <= maxPos, false,
2358 _T("bad starting position in LVN_ODFINDITEM") );
2359
2360 int currentPos = startPos;
2361 do
2362 {
2363 // wrap to the beginning if necessary
2364 if ( currentPos == maxPos )
2365 {
2366 // somewhat surprizingly, LVFI_WRAP isn't set in
2367 // flags but we still should wrap
2368 currentPos = 0;
2369 }
2370
2371 // does this item begin with searchstr?
2372 if ( wxStrnicmp(searchstr,
2373 GetItemText(currentPos), len) == 0 )
2374 {
2375 *result = currentPos;
2376 break;
2377 }
2378 }
2379 while ( ++currentPos != startPos );
2380
2381 if ( *result == -1 )
2382 {
2383 // not found
2384 return false;
2385 }
2386
2387 SetItemState(*result,
2388 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED,
2389 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED);
2390 EnsureVisible(*result);
2391 return true;
2392 }
2393 else
2394 {
2395 processed = false;
2396 }
2397 break;
2398 #endif // HAVE_NMLVFINDITEM
2399
2400 case LVN_GETDISPINFO:
2401 if ( IsVirtual() )
2402 {
2403 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
2404
2405 LV_ITEM& lvi = info->item;
2406 long item = lvi.iItem;
2407
2408 if ( lvi.mask & LVIF_TEXT )
2409 {
2410 wxString text = OnGetItemText(item, lvi.iSubItem);
2411 wxStrncpy(lvi.pszText, text, lvi.cchTextMax);
2412 }
2413
2414 // see comment at the end of wxListCtrl::GetColumn()
2415 #ifdef NM_CUSTOMDRAW
2416 if ( lvi.mask & LVIF_IMAGE )
2417 {
2418 lvi.iImage = OnGetItemColumnImage(item, lvi.iSubItem);
2419 }
2420 #endif // NM_CUSTOMDRAW
2421
2422 // even though we never use LVM_SETCALLBACKMASK, we still
2423 // can get messages with LVIF_STATE in lvi.mask under Vista
2424 if ( lvi.mask & LVIF_STATE )
2425 {
2426 // we don't have anything to return from here...
2427 lvi.stateMask = 0;
2428 }
2429
2430 return true;
2431 }
2432 // fall through
2433
2434 default:
2435 processed = false;
2436 }
2437
2438 if ( !processed )
2439 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2440 }
2441 else
2442 {
2443 // where did this one come from?
2444 return false;
2445 }
2446
2447 // process the event
2448 // -----------------
2449
2450 event.SetEventType(eventType);
2451
2452 bool processed = HandleWindowEvent(event);
2453
2454 // post processing
2455 // ---------------
2456 switch ( nmhdr->code )
2457 {
2458 case LVN_DELETEALLITEMS:
2459 // always return true to suppress all additional LVN_DELETEITEM
2460 // notifications - this makes deleting all items from a list ctrl
2461 // much faster
2462 *result = TRUE;
2463
2464 // also, we may free all user data now (couldn't do it before as
2465 // the user should have access to it in OnDeleteAllItems() handler)
2466 FreeAllInternalData();
2467
2468 // the control is empty now, synchronize the cached number of items
2469 // with the real one
2470 m_count = 0;
2471 return true;
2472
2473 case LVN_ENDLABELEDITA:
2474 case LVN_ENDLABELEDITW:
2475 // logic here is inverted compared to all the other messages
2476 *result = event.IsAllowed();
2477
2478 // don't keep a stale wxTextCtrl around
2479 if ( m_textCtrl )
2480 {
2481 // EDIT control will be deleted by the list control itself so
2482 // prevent us from deleting it as well
2483 m_textCtrl->UnsubclassWin();
2484 m_textCtrl->SetHWND(0);
2485 delete m_textCtrl;
2486 m_textCtrl = NULL;
2487 }
2488
2489 return true;
2490 }
2491
2492 if ( processed )
2493 *result = !event.IsAllowed();
2494
2495 return processed;
2496 }
2497
2498 // ----------------------------------------------------------------------------
2499 // custom draw stuff
2500 // ----------------------------------------------------------------------------
2501
2502 // see comment at the end of wxListCtrl::GetColumn()
2503 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
2504
2505 static RECT GetCustomDrawnItemRect(const NMCUSTOMDRAW& nmcd)
2506 {
2507 RECT rc;
2508 ListView_GetItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, &rc, LVIR_BOUNDS);
2509
2510 RECT rcIcon;
2511 ListView_GetItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, &rcIcon, LVIR_ICON);
2512
2513 // exclude the icon part, neither the selection background nor focus rect
2514 // should cover it
2515 rc.left = rcIcon.right;
2516
2517 return rc;
2518 }
2519
2520 static
2521 bool HandleSubItemPrepaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont, int colCount)
2522 {
2523 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2524
2525 HDC hdc = nmcd.hdc;
2526 HWND hwndList = nmcd.hdr.hwndFrom;
2527 const int col = pLVCD->iSubItem;
2528 const DWORD item = nmcd.dwItemSpec;
2529
2530 // the font must be valid, otherwise we wouldn't be painting the item at all
2531 SelectInHDC selFont(hdc, hfont);
2532
2533 // get the rectangle to paint
2534 RECT rc;
2535 ListView_GetSubItemRect(hwndList, item, col, LVIR_BOUNDS, &rc);
2536 if ( !col && colCount > 1 )
2537 {
2538 // broken ListView_GetSubItemRect() returns the entire item rect for
2539 // 0th subitem while we really need just the part for this column
2540 RECT rc2;
2541 ListView_GetSubItemRect(hwndList, item, 1, LVIR_BOUNDS, &rc2);
2542
2543 rc.right = rc2.left;
2544 rc.left += 4;
2545 }
2546 else // not first subitem
2547 {
2548 rc.left += 6;
2549 }
2550
2551 // get the image and text to draw
2552 wxChar text[512];
2553 LV_ITEM it;
2554 wxZeroMemory(it);
2555 it.mask = LVIF_TEXT | LVIF_IMAGE;
2556 it.iItem = item;
2557 it.iSubItem = col;
2558 it.pszText = text;
2559 it.cchTextMax = WXSIZEOF(text);
2560 ListView_GetItem(hwndList, &it);
2561
2562 HIMAGELIST himl = ListView_GetImageList(hwndList, LVSIL_SMALL);
2563 if ( himl && ImageList_GetImageCount(himl) )
2564 {
2565 if ( it.iImage != -1 )
2566 {
2567 ImageList_Draw(himl, it.iImage, hdc, rc.left, rc.top,
2568 nmcd.uItemState & CDIS_SELECTED ? ILD_SELECTED
2569 : ILD_TRANSPARENT);
2570 }
2571
2572 // notice that even if this item doesn't have any image, the list
2573 // control still leaves space for the image in the first column if the
2574 // image list is not empty (presumably so that items with and without
2575 // images align?)
2576 if ( it.iImage != -1 || it.iSubItem == 0 )
2577 {
2578 int wImage, hImage;
2579 ImageList_GetIconSize(himl, &wImage, &hImage);
2580
2581 rc.left += wImage + 2;
2582 }
2583 }
2584
2585 ::SetBkMode(hdc, TRANSPARENT);
2586
2587 UINT fmt = DT_SINGLELINE |
2588 #ifndef __WXWINCE__
2589 DT_WORD_ELLIPSIS |
2590 #endif // __WXWINCE__
2591 DT_NOPREFIX |
2592 DT_VCENTER;
2593
2594 LV_COLUMN lvCol;
2595 wxZeroMemory(lvCol);
2596 lvCol.mask = LVCF_FMT;
2597 if ( ListView_GetColumn(hwndList, col, &lvCol) )
2598 {
2599 switch ( lvCol.fmt & LVCFMT_JUSTIFYMASK )
2600 {
2601 case LVCFMT_LEFT:
2602 fmt |= DT_LEFT;
2603 break;
2604
2605 case LVCFMT_CENTER:
2606 fmt |= DT_CENTER;
2607 break;
2608
2609 case LVCFMT_RIGHT:
2610 fmt |= DT_RIGHT;
2611 break;
2612 }
2613 }
2614 //else: failed to get alignment, assume it's DT_LEFT (default)
2615
2616 DrawText(hdc, text, -1, &rc, fmt);
2617
2618 return true;
2619 }
2620
2621 static void HandleItemPostpaint(NMCUSTOMDRAW nmcd)
2622 {
2623 if ( nmcd.uItemState & CDIS_FOCUS )
2624 {
2625 RECT rc = GetCustomDrawnItemRect(nmcd);
2626
2627 // don't use the provided HDC, it's in some strange state by now
2628 ::DrawFocusRect(WindowHDC(nmcd.hdr.hwndFrom), &rc);
2629 }
2630 }
2631
2632 // pLVCD->clrText and clrTextBk should contain the colours to use
2633 static void HandleItemPaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
2634 {
2635 NMCUSTOMDRAW& nmcd = pLVCD->nmcd; // just a shortcut
2636
2637 const HWND hwndList = nmcd.hdr.hwndFrom;
2638 const int item = nmcd.dwItemSpec;
2639
2640 // unfortunately we can't trust CDIS_SELECTED, it is often set even when
2641 // the item is not at all selected for some reason (comctl32 6), but we
2642 // also can't always trust ListView_GetItem() as it could return the old
2643 // item status if we're called just after the (de)selection, so remember
2644 // the last item to gain selection and also check for it here
2645 for ( int i = -1;; )
2646 {
2647 i = ListView_GetNextItem(hwndList, i, LVNI_SELECTED);
2648 if ( i == -1 )
2649 {
2650 nmcd.uItemState &= ~CDIS_SELECTED;
2651 break;
2652 }
2653
2654 if ( i == item )
2655 {
2656 nmcd.uItemState |= CDIS_SELECTED;
2657 break;
2658 }
2659 }
2660
2661 // same thing for CDIS_FOCUS (except simpler as there is only one of them)
2662 if ( ::GetFocus() == hwndList &&
2663 ListView_GetNextItem(hwndList, (WPARAM)-1, LVNI_FOCUSED) == item )
2664 {
2665 nmcd.uItemState |= CDIS_FOCUS;
2666 }
2667 else
2668 {
2669 nmcd.uItemState &= ~CDIS_FOCUS;
2670 }
2671
2672 if ( nmcd.uItemState & CDIS_SELECTED )
2673 {
2674 int syscolFg, syscolBg;
2675 if ( ::GetFocus() == hwndList )
2676 {
2677 syscolFg = COLOR_HIGHLIGHTTEXT;
2678 syscolBg = COLOR_HIGHLIGHT;
2679 }
2680 else // selected but unfocused
2681 {
2682 syscolFg = COLOR_WINDOWTEXT;
2683 syscolBg = COLOR_BTNFACE;
2684
2685 // don't grey out the icon in this case neither
2686 nmcd.uItemState &= ~CDIS_SELECTED;
2687 }
2688
2689 pLVCD->clrText = ::GetSysColor(syscolFg);
2690 pLVCD->clrTextBk = ::GetSysColor(syscolBg);
2691 }
2692 //else: not selected, use normal colours from pLVCD
2693
2694 HDC hdc = nmcd.hdc;
2695 RECT rc = GetCustomDrawnItemRect(nmcd);
2696
2697 ::SetTextColor(hdc, pLVCD->clrText);
2698 ::FillRect(hdc, &rc, AutoHBRUSH(pLVCD->clrTextBk));
2699
2700 // we could use CDRF_NOTIFYSUBITEMDRAW here but it results in weird repaint
2701 // problems so just draw everything except the focus rect from here instead
2702 const int colCount = Header_GetItemCount(ListView_GetHeader(hwndList));
2703 for ( int col = 0; col < colCount; col++ )
2704 {
2705 pLVCD->iSubItem = col;
2706 HandleSubItemPrepaint(pLVCD, hfont, colCount);
2707 }
2708
2709 HandleItemPostpaint(nmcd);
2710 }
2711
2712 static WXLPARAM HandleItemPrepaint(wxListCtrl *listctrl,
2713 LPNMLVCUSTOMDRAW pLVCD,
2714 wxListItemAttr *attr)
2715 {
2716 if ( !attr )
2717 {
2718 // nothing to do for this item
2719 return CDRF_DODEFAULT;
2720 }
2721
2722
2723 // set the colours to use for text drawing
2724 pLVCD->clrText = attr->HasTextColour()
2725 ? wxColourToRGB(attr->GetTextColour())
2726 : wxColourToRGB(listctrl->GetTextColour());
2727 pLVCD->clrTextBk = attr->HasBackgroundColour()
2728 ? wxColourToRGB(attr->GetBackgroundColour())
2729 : wxColourToRGB(listctrl->GetBackgroundColour());
2730
2731 // select the font if non default one is specified
2732 if ( attr->HasFont() )
2733 {
2734 wxFont font = attr->GetFont();
2735 if ( font.GetEncoding() != wxFONTENCODING_SYSTEM )
2736 {
2737 // the standard control ignores the font encoding/charset, at least
2738 // with recent comctl32.dll versions (5 and 6, it uses to work with
2739 // 4.something) so we have to draw the item entirely ourselves in
2740 // this case
2741 HandleItemPaint(pLVCD, GetHfontOf(font));
2742 return CDRF_SKIPDEFAULT;
2743 }
2744
2745 ::SelectObject(pLVCD->nmcd.hdc, GetHfontOf(font));
2746
2747 return CDRF_NEWFONT;
2748 }
2749
2750 return CDRF_DODEFAULT;
2751 }
2752
2753 WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
2754 {
2755 LPNMLVCUSTOMDRAW pLVCD = (LPNMLVCUSTOMDRAW)lParam;
2756 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2757 switch ( nmcd.dwDrawStage )
2758 {
2759 case CDDS_PREPAINT:
2760 // if we've got any items with non standard attributes,
2761 // notify us before painting each item
2762 //
2763 // for virtual controls, always suppose that we have attributes as
2764 // there is no way to check for this
2765 if ( IsVirtual() || m_hasAnyAttr )
2766 return CDRF_NOTIFYITEMDRAW;
2767 break;
2768
2769 case CDDS_ITEMPREPAINT:
2770 const int item = nmcd.dwItemSpec;
2771
2772 // we get this message with item == 0 for an empty control, we
2773 // must ignore it as calling OnGetItemAttr() would be wrong
2774 if ( item < 0 || item >= GetItemCount() )
2775 break;
2776
2777 return HandleItemPrepaint(this, pLVCD, DoGetItemAttr(item));
2778 }
2779
2780 return CDRF_DODEFAULT;
2781 }
2782
2783 #endif // NM_CUSTOMDRAW supported
2784
2785 // Necessary for drawing hrules and vrules, if specified
2786 void wxListCtrl::OnPaint(wxPaintEvent& event)
2787 {
2788 bool drawHRules = HasFlag(wxLC_HRULES);
2789 bool drawVRules = HasFlag(wxLC_VRULES);
2790
2791 if (!InReportView() || !drawHRules && !drawVRules)
2792 {
2793 event.Skip();
2794 return;
2795 }
2796
2797 wxPaintDC dc(this);
2798
2799 wxControl::OnPaint(event);
2800
2801 // Reset the device origin since it may have been set
2802 dc.SetDeviceOrigin(0, 0);
2803
2804 wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
2805 dc.SetPen(pen);
2806 dc.SetBrush(* wxTRANSPARENT_BRUSH);
2807
2808 wxSize clientSize = GetClientSize();
2809 wxRect itemRect;
2810
2811 int itemCount = GetItemCount();
2812 int i;
2813 if (drawHRules)
2814 {
2815 long top = GetTopItem();
2816 for (i = top; i < top + GetCountPerPage() + 1; i++)
2817 {
2818 if (GetItemRect(i, itemRect))
2819 {
2820 int cy = itemRect.GetTop();
2821 if (i != 0) // Don't draw the first one
2822 {
2823 dc.DrawLine(0, cy, clientSize.x, cy);
2824 }
2825 // Draw last line
2826 if (i == itemCount - 1)
2827 {
2828 cy = itemRect.GetBottom();
2829 dc.DrawLine(0, cy, clientSize.x, cy);
2830 }
2831 }
2832 }
2833 }
2834 i = itemCount - 1;
2835 if (drawVRules && (i > -1))
2836 {
2837 wxRect firstItemRect;
2838 GetItemRect(0, firstItemRect);
2839
2840 if (GetItemRect(i, itemRect))
2841 {
2842 // this is a fix for bug 673394: erase the pixels which we would
2843 // otherwise leave on the screen
2844 static const int gap = 2;
2845 dc.SetPen(*wxTRANSPARENT_PEN);
2846 dc.SetBrush(wxBrush(GetBackgroundColour()));
2847 dc.DrawRectangle(0, firstItemRect.GetY() - gap,
2848 clientSize.GetWidth(), gap);
2849
2850 dc.SetPen(pen);
2851 dc.SetBrush(*wxTRANSPARENT_BRUSH);
2852
2853 int numCols = GetColumnCount();
2854 int* indexArray = new int[numCols];
2855 if ( !ListView_GetColumnOrderArray( GetHwnd(), numCols, indexArray) )
2856 {
2857 wxFAIL_MSG( _T("invalid column index array in OnPaint()") );
2858 }
2859
2860 int x = itemRect.GetX();
2861 for (int col = 0; col < numCols; col++)
2862 {
2863 int colWidth = GetColumnWidth(indexArray[col]);
2864 x += colWidth ;
2865 dc.DrawLine(x-1, firstItemRect.GetY() - gap,
2866 x-1, itemRect.GetBottom());
2867 }
2868
2869 delete indexArray;
2870 }
2871 }
2872 }
2873
2874 WXLRESULT
2875 wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
2876 {
2877 switch ( nMsg )
2878 {
2879 #ifdef WM_PRINT
2880 case WM_PRINT:
2881 // we should bypass our own WM_PRINT handling as we don't handle
2882 // PRF_CHILDREN flag, so leave it to the native control itself
2883 return MSWDefWindowProc(nMsg, wParam, lParam);
2884 #endif // WM_PRINT
2885
2886 case WM_CONTEXTMENU:
2887 // because this message is propagated upwards the child-parent
2888 // chain, we get it for the right clicks on the header window but
2889 // this is confusing in wx as right clicking there already
2890 // generates a separate wxEVT_COMMAND_LIST_COL_RIGHT_CLICK event
2891 // so just ignore them
2892 if ( (HWND)wParam == ListView_GetHeader(GetHwnd()) )
2893 return 0;
2894 //else: break
2895 }
2896
2897 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
2898 }
2899
2900 // ----------------------------------------------------------------------------
2901 // virtual list controls
2902 // ----------------------------------------------------------------------------
2903
2904 wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(col)) const
2905 {
2906 // this is a pure virtual function, in fact - which is not really pure
2907 // because the controls which are not virtual don't need to implement it
2908 wxFAIL_MSG( _T("wxListCtrl::OnGetItemText not supposed to be called") );
2909
2910 return wxEmptyString;
2911 }
2912
2913 int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
2914 {
2915 wxCHECK_MSG(!GetImageList(wxIMAGE_LIST_SMALL),
2916 -1,
2917 wxT("List control has an image list, OnGetItemImage or OnGetItemColumnImage should be overridden."));
2918 return -1;
2919 }
2920
2921 int wxListCtrl::OnGetItemColumnImage(long item, long column) const
2922 {
2923 if (!column)
2924 return OnGetItemImage(item);
2925
2926 return -1;
2927 }
2928
2929 wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
2930 {
2931 wxASSERT_MSG( item >= 0 && item < GetItemCount(),
2932 _T("invalid item index in OnGetItemAttr()") );
2933
2934 // no attributes by default
2935 return NULL;
2936 }
2937
2938 wxListItemAttr *wxListCtrl::DoGetItemAttr(long item) const
2939 {
2940 return IsVirtual() ? OnGetItemAttr(item)
2941 : wxGetInternalDataAttr(this, item);
2942 }
2943
2944 void wxListCtrl::SetItemCount(long count)
2945 {
2946 wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
2947
2948 if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count,
2949 LVSICF_NOSCROLL | LVSICF_NOINVALIDATEALL) )
2950 {
2951 wxLogLastError(_T("ListView_SetItemCount"));
2952 }
2953 m_count = count;
2954 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
2955 wxT("m_count should match ListView_GetItemCount"));
2956 }
2957
2958 void wxListCtrl::RefreshItem(long item)
2959 {
2960 RefreshItems(item, item);
2961 }
2962
2963 void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
2964 {
2965 ListView_RedrawItems(GetHwnd(), itemFrom, itemTo);
2966 }
2967
2968 // ----------------------------------------------------------------------------
2969 // internal data stuff
2970 // ----------------------------------------------------------------------------
2971
2972 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId)
2973 {
2974 LV_ITEM it;
2975 it.mask = LVIF_PARAM;
2976 it.iItem = itemId;
2977
2978 if ( !ListView_GetItem(hwnd, &it) )
2979 return NULL;
2980
2981 return (wxListItemInternalData *) it.lParam;
2982 }
2983
2984 static
2985 wxListItemInternalData *wxGetInternalData(const wxListCtrl *ctl, long itemId)
2986 {
2987 return wxGetInternalData(GetHwndOf(ctl), itemId);
2988 }
2989
2990 static
2991 wxListItemAttr *wxGetInternalDataAttr(const wxListCtrl *ctl, long itemId)
2992 {
2993 wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
2994
2995 return data ? data->attr : NULL;
2996 }
2997
2998 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId)
2999 {
3000 wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
3001 if (data)
3002 {
3003 LV_ITEM item;
3004 memset(&item, 0, sizeof(item));
3005 item.iItem = itemId;
3006 item.mask = LVIF_PARAM;
3007 item.lParam = (LPARAM) 0;
3008 ListView_SetItem((HWND)ctl->GetHWND(), &item);
3009 delete data;
3010 }
3011 }
3012
3013 // ----------------------------------------------------------------------------
3014 // wxWin <-> MSW items conversions
3015 // ----------------------------------------------------------------------------
3016
3017 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
3018 wxListItem& info,
3019 LV_ITEM& lvItem)
3020 {
3021 wxListItemInternalData *internaldata =
3022 (wxListItemInternalData *) lvItem.lParam;
3023
3024 if (internaldata)
3025 info.m_data = internaldata->lParam;
3026
3027 info.m_mask = 0;
3028 info.m_state = 0;
3029 info.m_stateMask = 0;
3030 info.m_itemId = lvItem.iItem;
3031
3032 long oldMask = lvItem.mask;
3033
3034 bool needText = false;
3035 if (hwndListCtrl != 0)
3036 {
3037 if ( lvItem.mask & LVIF_TEXT )
3038 needText = false;
3039 else
3040 needText = true;
3041
3042 if ( needText )
3043 {
3044 lvItem.pszText = new wxChar[513];
3045 lvItem.cchTextMax = 512;
3046 }
3047 lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
3048 ::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
3049 }
3050
3051 if ( lvItem.mask & LVIF_STATE )
3052 {
3053 info.m_mask |= wxLIST_MASK_STATE;
3054
3055 if ( lvItem.stateMask & LVIS_CUT)
3056 {
3057 info.m_stateMask |= wxLIST_STATE_CUT;
3058 if ( lvItem.state & LVIS_CUT )
3059 info.m_state |= wxLIST_STATE_CUT;
3060 }
3061 if ( lvItem.stateMask & LVIS_DROPHILITED)
3062 {
3063 info.m_stateMask |= wxLIST_STATE_DROPHILITED;
3064 if ( lvItem.state & LVIS_DROPHILITED )
3065 info.m_state |= wxLIST_STATE_DROPHILITED;
3066 }
3067 if ( lvItem.stateMask & LVIS_FOCUSED)
3068 {
3069 info.m_stateMask |= wxLIST_STATE_FOCUSED;
3070 if ( lvItem.state & LVIS_FOCUSED )
3071 info.m_state |= wxLIST_STATE_FOCUSED;
3072 }
3073 if ( lvItem.stateMask & LVIS_SELECTED)
3074 {
3075 info.m_stateMask |= wxLIST_STATE_SELECTED;
3076 if ( lvItem.state & LVIS_SELECTED )
3077 info.m_state |= wxLIST_STATE_SELECTED;
3078 }
3079 }
3080
3081 if ( lvItem.mask & LVIF_TEXT )
3082 {
3083 info.m_mask |= wxLIST_MASK_TEXT;
3084 info.m_text = lvItem.pszText;
3085 }
3086 if ( lvItem.mask & LVIF_IMAGE )
3087 {
3088 info.m_mask |= wxLIST_MASK_IMAGE;
3089 info.m_image = lvItem.iImage;
3090 }
3091 if ( lvItem.mask & LVIF_PARAM )
3092 info.m_mask |= wxLIST_MASK_DATA;
3093 if ( lvItem.mask & LVIF_DI_SETITEM )
3094 info.m_mask |= wxLIST_SET_ITEM;
3095 info.m_col = lvItem.iSubItem;
3096
3097 if (needText)
3098 {
3099 if (lvItem.pszText)
3100 delete[] lvItem.pszText;
3101 }
3102 lvItem.mask = oldMask;
3103 }
3104
3105 static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
3106 {
3107 if (stateMask & wxLIST_STATE_CUT)
3108 {
3109 lvItem.stateMask |= LVIS_CUT;
3110 if (state & wxLIST_STATE_CUT)
3111 lvItem.state |= LVIS_CUT;
3112 }
3113 if (stateMask & wxLIST_STATE_DROPHILITED)
3114 {
3115 lvItem.stateMask |= LVIS_DROPHILITED;
3116 if (state & wxLIST_STATE_DROPHILITED)
3117 lvItem.state |= LVIS_DROPHILITED;
3118 }
3119 if (stateMask & wxLIST_STATE_FOCUSED)
3120 {
3121 lvItem.stateMask |= LVIS_FOCUSED;
3122 if (state & wxLIST_STATE_FOCUSED)
3123 lvItem.state |= LVIS_FOCUSED;
3124 }
3125 if (stateMask & wxLIST_STATE_SELECTED)
3126 {
3127 lvItem.stateMask |= LVIS_SELECTED;
3128 if (state & wxLIST_STATE_SELECTED)
3129 lvItem.state |= LVIS_SELECTED;
3130 }
3131 }
3132
3133 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
3134 const wxListItem& info,
3135 LV_ITEM& lvItem)
3136 {
3137 lvItem.iItem = (int) info.m_itemId;
3138
3139 lvItem.iImage = info.m_image;
3140 lvItem.stateMask = 0;
3141 lvItem.state = 0;
3142 lvItem.mask = 0;
3143 lvItem.iSubItem = info.m_col;
3144
3145 if (info.m_mask & wxLIST_MASK_STATE)
3146 {
3147 lvItem.mask |= LVIF_STATE;
3148
3149 wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
3150 }
3151
3152 if (info.m_mask & wxLIST_MASK_TEXT)
3153 {
3154 lvItem.mask |= LVIF_TEXT;
3155 if ( ctrl->HasFlag(wxLC_USER_TEXT) )
3156 {
3157 lvItem.pszText = LPSTR_TEXTCALLBACK;
3158 }
3159 else
3160 {
3161 // pszText is not const, hence the cast
3162 lvItem.pszText = (wxChar *)info.m_text.wx_str();
3163 if ( lvItem.pszText )
3164 lvItem.cchTextMax = info.m_text.length();
3165 else
3166 lvItem.cchTextMax = 0;
3167 }
3168 }
3169 if (info.m_mask & wxLIST_MASK_IMAGE)
3170 lvItem.mask |= LVIF_IMAGE;
3171 }
3172
3173 static void wxConvertToMSWListCol(HWND hwndList,
3174 int col,
3175 const wxListItem& item,
3176 LV_COLUMN& lvCol)
3177 {
3178 wxZeroMemory(lvCol);
3179
3180 if ( item.m_mask & wxLIST_MASK_TEXT )
3181 {
3182 lvCol.mask |= LVCF_TEXT;
3183 lvCol.pszText = (wxChar *)item.m_text.wx_str(); // cast is safe
3184 }
3185
3186 if ( item.m_mask & wxLIST_MASK_FORMAT )
3187 {
3188 lvCol.mask |= LVCF_FMT;
3189
3190 if ( item.m_format == wxLIST_FORMAT_LEFT )
3191 lvCol.fmt = LVCFMT_LEFT;
3192 else if ( item.m_format == wxLIST_FORMAT_RIGHT )
3193 lvCol.fmt = LVCFMT_RIGHT;
3194 else if ( item.m_format == wxLIST_FORMAT_CENTRE )
3195 lvCol.fmt = LVCFMT_CENTER;
3196 }
3197
3198 if ( item.m_mask & wxLIST_MASK_WIDTH )
3199 {
3200 lvCol.mask |= LVCF_WIDTH;
3201 if ( item.m_width == wxLIST_AUTOSIZE)
3202 lvCol.cx = LVSCW_AUTOSIZE;
3203 else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
3204 lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
3205 else
3206 lvCol.cx = item.m_width;
3207 }
3208
3209 // see comment at the end of wxListCtrl::GetColumn()
3210 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
3211 if ( item.m_mask & wxLIST_MASK_IMAGE )
3212 {
3213 if ( wxApp::GetComCtl32Version() >= 470 )
3214 {
3215 lvCol.mask |= LVCF_IMAGE;
3216
3217 // we use LVCFMT_BITMAP_ON_RIGHT because the images on the right
3218 // seem to be generally nicer than on the left and the generic
3219 // version only draws them on the right (we don't have a flag to
3220 // specify the image location anyhow)
3221 //
3222 // we don't use LVCFMT_COL_HAS_IMAGES because it doesn't seem to
3223 // make any difference in my tests -- but maybe we should?
3224 if ( item.m_image != -1 )
3225 {
3226 // as we're going to overwrite the format field, get its
3227 // current value first -- unless we want to overwrite it anyhow
3228 if ( !(lvCol.mask & LVCF_FMT) )
3229 {
3230 LV_COLUMN lvColOld;
3231 wxZeroMemory(lvColOld);
3232 lvColOld.mask = LVCF_FMT;
3233 if ( ListView_GetColumn(hwndList, col, &lvColOld) )
3234 {
3235 lvCol.fmt = lvColOld.fmt;
3236 }
3237
3238 lvCol.mask |= LVCF_FMT;
3239 }
3240
3241 lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT | LVCFMT_IMAGE;
3242 }
3243
3244 lvCol.iImage = item.m_image;
3245 }
3246 //else: it doesn't support item images anyhow
3247 }
3248 #endif // _WIN32_IE >= 0x0300
3249 }
3250
3251 #endif // wxUSE_LISTCTRL