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[wxWidgets.git] / src / msw / listctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/listctrl.cpp
3 // Purpose: wxListCtrl
4 // Author: Julian Smart
5 // Modified by:
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 #ifndef WX_PRECOMP
30 #include "wx/app.h"
31 #include "wx/intl.h"
32 #include "wx/log.h"
33 #include "wx/settings.h"
34 #include "wx/dcclient.h"
35 #endif
36
37 #include "wx/textctrl.h"
38 #include "wx/imaglist.h"
39 #include "wx/listctrl.h"
40
41 #include "wx/msw/private.h"
42
43 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
44 #include <ole2.h>
45 #include <shellapi.h>
46 #if _WIN32_WCE < 400
47 #include <aygshell.h>
48 #endif
49 #endif
50
51 // include <commctrl.h> "properly"
52 #include "wx/msw/wrapcctl.h"
53
54 // Currently gcc and watcom don't define NMLVFINDITEM, and DMC only defines
55 // it by its old name NM_FINDTIEM.
56 //
57 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(NMLVFINDITEM)
58 #define HAVE_NMLVFINDITEM 1
59 #elif defined(__DMC__) || defined(NM_FINDITEM)
60 #define HAVE_NMLVFINDITEM 1
61 #define NMLVFINDITEM NM_FINDITEM
62 #endif
63
64 // ----------------------------------------------------------------------------
65 // private functions
66 // ----------------------------------------------------------------------------
67
68 // convert our state and mask flags to LV_ITEM constants
69 static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
70
71 // convert wxListItem to LV_ITEM
72 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
73 const wxListItem& info, LV_ITEM& lvItem);
74
75 // convert LV_ITEM to wxListItem
76 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
77 wxListItem& info,
78 /* const */ LV_ITEM& lvItem);
79
80 // convert our wxListItem to LV_COLUMN
81 static void wxConvertToMSWListCol(HWND hwndList,
82 int col,
83 const wxListItem& item,
84 LV_COLUMN& lvCol);
85
86 // ----------------------------------------------------------------------------
87 // private helper classes
88 // ----------------------------------------------------------------------------
89
90 // We have to handle both fooW and fooA notifications in several cases
91 // because of broken comctl32.dll and/or unicows.dll. This class is used to
92 // convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
93 // LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
94 // by wxConvertToMSWListItem().
95 #if wxUSE_UNICODE
96 #define LV_ITEM_NATIVE LV_ITEMW
97 #define LV_ITEM_OTHER LV_ITEMA
98
99 #define LV_CONV_TO_WX cMB2WX
100 #define LV_CONV_BUF wxMB2WXbuf
101 #else // ANSI
102 #define LV_ITEM_NATIVE LV_ITEMA
103 #define LV_ITEM_OTHER LV_ITEMW
104
105 #define LV_CONV_TO_WX cWC2WX
106 #define LV_CONV_BUF wxWC2WXbuf
107 #endif // Unicode/ANSI
108
109 class wxLV_ITEM
110 {
111 public:
112 // default ctor, use Init() later
113 wxLV_ITEM() { m_buf = NULL; m_pItem = NULL; }
114
115 // init without conversion
116 void Init(LV_ITEM_NATIVE& item)
117 {
118 wxASSERT_MSG( !m_pItem, _T("Init() called twice?") );
119
120 m_pItem = &item;
121 }
122
123 // init with conversion
124 void Init(const LV_ITEM_OTHER& item)
125 {
126 // avoid unnecessary dynamic memory allocation, jjust make m_pItem
127 // point to our own m_item
128
129 // memcpy() can't work if the struct sizes are different
130 wxCOMPILE_TIME_ASSERT( sizeof(LV_ITEM_OTHER) == sizeof(LV_ITEM_NATIVE),
131 CodeCantWorkIfDiffSizes);
132
133 memcpy(&m_item, &item, sizeof(LV_ITEM_NATIVE));
134
135 // convert text from ANSI to Unicod if necessary
136 if ( (item.mask & LVIF_TEXT) && item.pszText )
137 {
138 m_buf = new LV_CONV_BUF(wxConvLocal.LV_CONV_TO_WX(item.pszText));
139 m_item.pszText = (wxChar *)m_buf->data();
140 }
141 }
142
143 // ctor without conversion
144 wxLV_ITEM(LV_ITEM_NATIVE& item) : m_buf(NULL), m_pItem(&item) { }
145
146 // ctor with conversion
147 wxLV_ITEM(LV_ITEM_OTHER& item) : m_buf(NULL)
148 {
149 Init(item);
150 }
151
152 ~wxLV_ITEM() { delete m_buf; }
153
154 // conversion to the real LV_ITEM
155 operator LV_ITEM_NATIVE&() const { return *m_pItem; }
156
157 private:
158 LV_CONV_BUF *m_buf;
159
160 LV_ITEM_NATIVE *m_pItem;
161 LV_ITEM_NATIVE m_item;
162
163 DECLARE_NO_COPY_CLASS(wxLV_ITEM)
164 };
165
166 ///////////////////////////////////////////////////////
167 // Problem:
168 // The MSW version had problems with SetTextColour() et
169 // al as the wxListItemAttr's were stored keyed on the
170 // item index. If a item was inserted anywhere but the end
171 // of the list the the text attributes (colour etc) for
172 // the following items were out of sync.
173 //
174 // Solution:
175 // Under MSW the only way to associate data with a List
176 // item independent of its position in the list is to
177 // store a pointer to it in its lParam attribute. However
178 // user programs are already using this (via the
179 // SetItemData() GetItemData() calls).
180 //
181 // However what we can do is store a pointer to a
182 // structure which contains the attributes we want *and*
183 // a lParam for the users data, e.g.
184 //
185 // class wxListItemInternalData
186 // {
187 // public:
188 // wxListItemAttr *attr;
189 // long lParam; // user data
190 // };
191 //
192 // To conserve memory, a wxListItemInternalData is
193 // only allocated for a LV_ITEM if text attributes or
194 // user data(lparam) are being set.
195
196
197 // class wxListItemInternalData
198 class wxListItemInternalData
199 {
200 public:
201 wxListItemAttr *attr;
202 LPARAM lParam; // user data
203
204 wxListItemInternalData() : attr(NULL), lParam(0) {}
205 ~wxListItemInternalData()
206 {
207 if (attr)
208 delete attr;
209 };
210
211 DECLARE_NO_COPY_CLASS(wxListItemInternalData)
212 };
213
214 // Get the internal data structure
215 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId);
216 static wxListItemInternalData *wxGetInternalData(const wxListCtrl *ctl, long itemId);
217 static wxListItemAttr *wxGetInternalDataAttr(const wxListCtrl *ctl, long itemId);
218 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId);
219
220
221 // ----------------------------------------------------------------------------
222 // events
223 // ----------------------------------------------------------------------------
224
225 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_DRAG)
226 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_RDRAG)
227 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT)
228 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_END_LABEL_EDIT)
229 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ITEM)
230 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS)
231 #if WXWIN_COMPATIBILITY_2_4
232 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_GET_INFO)
233 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_SET_INFO)
234 #endif
235 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_SELECTED)
236 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_DESELECTED)
237 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_KEY_DOWN)
238 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_INSERT_ITEM)
239 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_CLICK)
240 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_RIGHT_CLICK)
241 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_BEGIN_DRAG)
242 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_DRAGGING)
243 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_END_DRAG)
244 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK)
245 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK)
246 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_ACTIVATED)
247 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_FOCUSED)
248 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_CACHE_HINT)
249
250 #if wxUSE_EXTENDED_RTTI
251 WX_DEFINE_FLAGS( wxListCtrlStyle )
252
253 wxBEGIN_FLAGS( wxListCtrlStyle )
254 // new style border flags, we put them first to
255 // use them for streaming out
256 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
257 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
258 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
259 wxFLAGS_MEMBER(wxBORDER_RAISED)
260 wxFLAGS_MEMBER(wxBORDER_STATIC)
261 wxFLAGS_MEMBER(wxBORDER_NONE)
262
263 // old style border flags
264 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
265 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
266 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
267 wxFLAGS_MEMBER(wxRAISED_BORDER)
268 wxFLAGS_MEMBER(wxSTATIC_BORDER)
269 wxFLAGS_MEMBER(wxBORDER)
270
271 // standard window styles
272 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
273 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
274 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
275 wxFLAGS_MEMBER(wxWANTS_CHARS)
276 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
277 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
278 wxFLAGS_MEMBER(wxVSCROLL)
279 wxFLAGS_MEMBER(wxHSCROLL)
280
281 wxFLAGS_MEMBER(wxLC_LIST)
282 wxFLAGS_MEMBER(wxLC_REPORT)
283 wxFLAGS_MEMBER(wxLC_ICON)
284 wxFLAGS_MEMBER(wxLC_SMALL_ICON)
285 wxFLAGS_MEMBER(wxLC_ALIGN_TOP)
286 wxFLAGS_MEMBER(wxLC_ALIGN_LEFT)
287 wxFLAGS_MEMBER(wxLC_AUTOARRANGE)
288 wxFLAGS_MEMBER(wxLC_USER_TEXT)
289 wxFLAGS_MEMBER(wxLC_EDIT_LABELS)
290 wxFLAGS_MEMBER(wxLC_NO_HEADER)
291 wxFLAGS_MEMBER(wxLC_SINGLE_SEL)
292 wxFLAGS_MEMBER(wxLC_SORT_ASCENDING)
293 wxFLAGS_MEMBER(wxLC_SORT_DESCENDING)
294 wxFLAGS_MEMBER(wxLC_VIRTUAL)
295
296 wxEND_FLAGS( wxListCtrlStyle )
297
298 IMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl,"wx/listctrl.h")
299
300 wxBEGIN_PROPERTIES_TABLE(wxListCtrl)
301 wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
302
303 wxPROPERTY_FLAGS( WindowStyle , wxListCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
304 wxEND_PROPERTIES_TABLE()
305
306 wxBEGIN_HANDLERS_TABLE(wxListCtrl)
307 wxEND_HANDLERS_TABLE()
308
309 wxCONSTRUCTOR_5( wxListCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
310
311 /*
312 TODO : Expose more information of a list's layout etc. via appropriate objects (à la NotebookPageInfo)
313 */
314 #else
315 IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
316 #endif
317
318 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
319 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
320
321 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
322
323 BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
324 EVT_PAINT(wxListCtrl::OnPaint)
325 END_EVENT_TABLE()
326
327 // ============================================================================
328 // implementation
329 // ============================================================================
330
331 // ----------------------------------------------------------------------------
332 // wxListCtrl construction
333 // ----------------------------------------------------------------------------
334
335 void wxListCtrl::Init()
336 {
337 m_imageListNormal = NULL;
338 m_imageListSmall = NULL;
339 m_imageListState = NULL;
340 m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = false;
341 m_colCount = 0;
342 m_count = 0;
343 m_ignoreChangeMessages = false;
344 m_textCtrl = NULL;
345 m_AnyInternalData = false;
346 m_hasAnyAttr = false;
347 }
348
349 bool wxListCtrl::Create(wxWindow *parent,
350 wxWindowID id,
351 const wxPoint& pos,
352 const wxSize& size,
353 long style,
354 const wxValidator& validator,
355 const wxString& name)
356 {
357 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
358 return false;
359
360 if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) )
361 return false;
362
363 // explicitly say that we want to use Unicode because otherwise we get ANSI
364 // versions of _some_ messages (notably LVN_GETDISPINFOA) in MSLU build
365 wxSetCCUnicodeFormat(GetHwnd());
366
367 // We must set the default text colour to the system/theme color, otherwise
368 // GetTextColour will always return black
369 SetTextColour(GetDefaultAttributes().colFg);
370
371 // for comctl32.dll v 4.70+ we want to have some non default extended
372 // styles because it's prettier (and also because wxGTK does it like this)
373 if ( InReportView() && wxApp::GetComCtl32Version() >= 470 )
374 {
375 ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE,
376 0, LVS_EX_LABELTIP | LVS_EX_FULLROWSELECT | LVS_EX_SUBITEMIMAGES);
377 }
378
379 return true;
380 }
381
382 WXDWORD wxListCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
383 {
384 WXDWORD wstyle = wxControl::MSWGetStyle(style, exstyle);
385
386 wstyle |= LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
387
388 #ifdef __WXDEBUG__
389 size_t nModes = 0;
390
391 #define MAP_MODE_STYLE(wx, ms) \
392 if ( style & (wx) ) { wstyle |= (ms); nModes++; }
393 #else // !__WXDEBUG__
394 #define MAP_MODE_STYLE(wx, ms) \
395 if ( style & (wx) ) wstyle |= (ms);
396 #endif // __WXDEBUG__
397
398 MAP_MODE_STYLE(wxLC_ICON, LVS_ICON)
399 MAP_MODE_STYLE(wxLC_SMALL_ICON, LVS_SMALLICON)
400 MAP_MODE_STYLE(wxLC_LIST, LVS_LIST)
401 MAP_MODE_STYLE(wxLC_REPORT, LVS_REPORT)
402
403 wxASSERT_MSG( nModes == 1,
404 _T("wxListCtrl style should have exactly one mode bit set") );
405
406 #undef MAP_MODE_STYLE
407
408 if ( style & wxLC_ALIGN_LEFT )
409 wstyle |= LVS_ALIGNLEFT;
410
411 if ( style & wxLC_ALIGN_TOP )
412 wstyle |= LVS_ALIGNTOP;
413
414 if ( style & wxLC_AUTOARRANGE )
415 wstyle |= LVS_AUTOARRANGE;
416
417 if ( style & wxLC_NO_SORT_HEADER )
418 wstyle |= LVS_NOSORTHEADER;
419
420 if ( style & wxLC_NO_HEADER )
421 wstyle |= LVS_NOCOLUMNHEADER;
422
423 if ( style & wxLC_EDIT_LABELS )
424 wstyle |= LVS_EDITLABELS;
425
426 if ( style & wxLC_SINGLE_SEL )
427 wstyle |= LVS_SINGLESEL;
428
429 if ( style & wxLC_SORT_ASCENDING )
430 {
431 wstyle |= LVS_SORTASCENDING;
432
433 wxASSERT_MSG( !(style & wxLC_SORT_DESCENDING),
434 _T("can't sort in ascending and descending orders at once") );
435 }
436 else if ( style & wxLC_SORT_DESCENDING )
437 wstyle |= LVS_SORTDESCENDING;
438
439 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
440 if ( style & wxLC_VIRTUAL )
441 {
442 int ver = wxApp::GetComCtl32Version();
443 if ( ver < 470 )
444 {
445 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."),
446 ver / 100, ver % 100);
447 }
448
449 wstyle |= LVS_OWNERDATA;
450 }
451 #endif // ancient cygwin
452
453 return wstyle;
454 }
455
456 void wxListCtrl::UpdateStyle()
457 {
458 if ( GetHwnd() )
459 {
460 // The new window view style
461 DWORD dwStyleNew = MSWGetStyle(m_windowStyle, NULL);
462
463 // some styles are not returned by MSWGetStyle()
464 if ( IsShown() )
465 dwStyleNew |= WS_VISIBLE;
466
467 // Get the current window style.
468 DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
469
470 // we don't have wxVSCROLL style, but the list control may have it,
471 // don't change it then
472 dwStyleNew |= dwStyleOld & (WS_HSCROLL | WS_VSCROLL);
473
474 // Only set the window style if the view bits have changed.
475 if ( dwStyleOld != dwStyleNew )
476 {
477 ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
478 }
479 }
480 }
481
482 void wxListCtrl::FreeAllInternalData()
483 {
484 if (m_AnyInternalData)
485 {
486 int n = GetItemCount();
487
488 m_ignoreChangeMessages = true;
489 for (int i = 0; i < n; i++)
490 wxDeleteInternalData(this, i);
491 m_ignoreChangeMessages = false;
492
493 m_AnyInternalData = false;
494 }
495 }
496
497 wxListCtrl::~wxListCtrl()
498 {
499 FreeAllInternalData();
500
501 if ( m_textCtrl )
502 {
503 m_textCtrl->UnsubclassWin();
504 m_textCtrl->SetHWND(0);
505 delete m_textCtrl;
506 m_textCtrl = NULL;
507 }
508
509 if (m_ownsImageListNormal)
510 delete m_imageListNormal;
511 if (m_ownsImageListSmall)
512 delete m_imageListSmall;
513 if (m_ownsImageListState)
514 delete m_imageListState;
515 }
516
517 // ----------------------------------------------------------------------------
518 // set/get/change style
519 // ----------------------------------------------------------------------------
520
521 // Add or remove a single window style
522 void wxListCtrl::SetSingleStyle(long style, bool add)
523 {
524 long flag = GetWindowStyleFlag();
525
526 // Get rid of conflicting styles
527 if ( add )
528 {
529 if ( style & wxLC_MASK_TYPE)
530 flag = flag & ~wxLC_MASK_TYPE;
531 if ( style & wxLC_MASK_ALIGN )
532 flag = flag & ~wxLC_MASK_ALIGN;
533 if ( style & wxLC_MASK_SORT )
534 flag = flag & ~wxLC_MASK_SORT;
535 }
536
537 if ( add )
538 flag |= style;
539 else
540 flag &= ~style;
541
542 SetWindowStyleFlag(flag);
543 }
544
545 // Set the whole window style
546 void wxListCtrl::SetWindowStyleFlag(long flag)
547 {
548 if ( flag != m_windowStyle )
549 {
550 m_windowStyle = flag;
551
552 UpdateStyle();
553
554 Refresh();
555 }
556 }
557
558 // ----------------------------------------------------------------------------
559 // accessors
560 // ----------------------------------------------------------------------------
561
562 /* static */ wxVisualAttributes
563 wxListCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
564 {
565 wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant);
566
567 // common controls have their own default font
568 attrs.font = wxGetCCDefaultFont();
569
570 return attrs;
571 }
572
573 // Sets the foreground, i.e. text, colour
574 bool wxListCtrl::SetForegroundColour(const wxColour& col)
575 {
576 if ( !wxWindow::SetForegroundColour(col) )
577 return false;
578
579 ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
580
581 return true;
582 }
583
584 // Sets the background colour
585 bool wxListCtrl::SetBackgroundColour(const wxColour& col)
586 {
587 if ( !wxWindow::SetBackgroundColour(col) )
588 return false;
589
590 // we set the same colour for both the "empty" background and the items
591 // background
592 COLORREF color = wxColourToRGB(col);
593 ListView_SetBkColor(GetHwnd(), color);
594 ListView_SetTextBkColor(GetHwnd(), color);
595
596 return true;
597 }
598
599 // Gets information about this column
600 bool wxListCtrl::GetColumn(int col, wxListItem& item) const
601 {
602 LV_COLUMN lvCol;
603 wxZeroMemory(lvCol);
604
605 lvCol.mask = LVCF_WIDTH;
606
607 if ( item.m_mask & wxLIST_MASK_TEXT )
608 {
609 lvCol.mask |= LVCF_TEXT;
610 lvCol.pszText = new wxChar[513];
611 lvCol.cchTextMax = 512;
612 }
613
614 if ( item.m_mask & wxLIST_MASK_FORMAT )
615 {
616 lvCol.mask |= LVCF_FMT;
617 }
618
619 if ( item.m_mask & wxLIST_MASK_IMAGE )
620 {
621 lvCol.mask |= LVCF_IMAGE;
622 }
623
624 bool success = ListView_GetColumn(GetHwnd(), col, &lvCol) != 0;
625
626 // item.m_subItem = lvCol.iSubItem;
627 item.m_width = lvCol.cx;
628
629 if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
630 {
631 item.m_text = lvCol.pszText;
632 delete[] lvCol.pszText;
633 }
634
635 if ( item.m_mask & wxLIST_MASK_FORMAT )
636 {
637 switch (lvCol.fmt & LVCFMT_JUSTIFYMASK) {
638 case LVCFMT_LEFT:
639 item.m_format = wxLIST_FORMAT_LEFT;
640 break;
641 case LVCFMT_RIGHT:
642 item.m_format = wxLIST_FORMAT_RIGHT;
643 break;
644 case LVCFMT_CENTER:
645 item.m_format = wxLIST_FORMAT_CENTRE;
646 break;
647 default:
648 item.m_format = -1; // Unknown?
649 break;
650 }
651 }
652
653 // the column images were not supported in older versions but how to check
654 // for this? we can't use _WIN32_IE because we always define it to a very
655 // high value, so see if another symbol which is only defined starting from
656 // comctl32.dll 4.70 is available
657 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
658 if ( item.m_mask & wxLIST_MASK_IMAGE )
659 {
660 item.m_image = lvCol.iImage;
661 }
662 #endif // LVCOLUMN::iImage exists
663
664 return success;
665 }
666
667 // Sets information about this column
668 bool wxListCtrl::SetColumn(int col, const wxListItem& item)
669 {
670 LV_COLUMN lvCol;
671 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
672
673 return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
674 }
675
676 // Gets the column width
677 int wxListCtrl::GetColumnWidth(int col) const
678 {
679 return ListView_GetColumnWidth(GetHwnd(), col);
680 }
681
682 // Sets the column width
683 bool wxListCtrl::SetColumnWidth(int col, int width)
684 {
685 if ( m_windowStyle & wxLC_LIST )
686 col = 0;
687
688 if ( width == wxLIST_AUTOSIZE)
689 width = LVSCW_AUTOSIZE;
690 else if ( width == wxLIST_AUTOSIZE_USEHEADER)
691 width = LVSCW_AUTOSIZE_USEHEADER;
692
693 return ListView_SetColumnWidth(GetHwnd(), col, width) != 0;
694 }
695
696 // Gets the number of items that can fit vertically in the
697 // visible area of the list control (list or report view)
698 // or the total number of items in the list control (icon
699 // or small icon view)
700 int wxListCtrl::GetCountPerPage() const
701 {
702 return ListView_GetCountPerPage(GetHwnd());
703 }
704
705 // Gets the edit control for editing labels.
706 wxTextCtrl* wxListCtrl::GetEditControl() const
707 {
708 return m_textCtrl;
709 }
710
711 // Gets information about the item
712 bool wxListCtrl::GetItem(wxListItem& info) const
713 {
714 LV_ITEM lvItem;
715 wxZeroMemory(lvItem);
716
717 lvItem.iItem = info.m_itemId;
718 lvItem.iSubItem = info.m_col;
719
720 if ( info.m_mask & wxLIST_MASK_TEXT )
721 {
722 lvItem.mask |= LVIF_TEXT;
723 lvItem.pszText = new wxChar[513];
724 lvItem.cchTextMax = 512;
725 }
726 else
727 {
728 lvItem.pszText = NULL;
729 }
730
731 if (info.m_mask & wxLIST_MASK_DATA)
732 lvItem.mask |= LVIF_PARAM;
733
734 if (info.m_mask & wxLIST_MASK_IMAGE)
735 lvItem.mask |= LVIF_IMAGE;
736
737 if ( info.m_mask & wxLIST_MASK_STATE )
738 {
739 lvItem.mask |= LVIF_STATE;
740 wxConvertToMSWFlags(0, info.m_stateMask, lvItem);
741 }
742
743 bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
744 if ( !success )
745 {
746 wxLogError(_("Couldn't retrieve information about list control item %d."),
747 lvItem.iItem);
748 }
749 else
750 {
751 // give NULL as hwnd as we already have everything we need
752 wxConvertFromMSWListItem(NULL, info, lvItem);
753 }
754
755 if (lvItem.pszText)
756 delete[] lvItem.pszText;
757
758 return success;
759 }
760
761 // Sets information about the item
762 bool wxListCtrl::SetItem(wxListItem& info)
763 {
764 const long id = info.GetId();
765 wxCHECK_MSG( id >= 0 && id < GetItemCount(), false,
766 _T("invalid item index in SetItem") );
767
768 LV_ITEM item;
769 wxConvertToMSWListItem(this, info, item);
770
771 // we never update the lParam if it contains our pointer
772 // to the wxListItemInternalData structure
773 item.mask &= ~LVIF_PARAM;
774
775 // check if setting attributes or lParam
776 if (info.HasAttributes() || (info.m_mask & wxLIST_MASK_DATA))
777 {
778 // get internal item data
779 // perhaps a cache here ?
780 wxListItemInternalData *data = wxGetInternalData(this, id);
781
782 if (! data)
783 {
784 // need to set it
785 m_AnyInternalData = true;
786 data = new wxListItemInternalData();
787 item.lParam = (LPARAM) data;
788 item.mask |= LVIF_PARAM;
789 };
790
791
792 // user data
793 if (info.m_mask & wxLIST_MASK_DATA)
794 data->lParam = info.m_data;
795
796 // attributes
797 if ( info.HasAttributes() )
798 {
799 const wxListItemAttr& attrNew = *info.GetAttributes();
800
801 // don't overwrite the already set attributes if we have them
802 if ( data->attr )
803 data->attr->AssignFrom(attrNew);
804 else
805 data->attr = new wxListItemAttr(attrNew);
806 };
807 };
808
809
810 // we could be changing only the attribute in which case we don't need to
811 // call ListView_SetItem() at all
812 if ( item.mask )
813 {
814 item.cchTextMax = 0;
815 if ( !ListView_SetItem(GetHwnd(), &item) )
816 {
817 wxLogDebug(_T("ListView_SetItem() failed"));
818
819 return false;
820 }
821 }
822
823 // we need to update the item immediately to show the new image
824 bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
825
826 // check whether it has any custom attributes
827 if ( info.HasAttributes() )
828 {
829 m_hasAnyAttr = true;
830
831 // if the colour has changed, we must redraw the item
832 updateNow = true;
833 }
834
835 if ( updateNow )
836 {
837 // we need this to make the change visible right now
838 RefreshItem(item.iItem);
839 }
840
841 return true;
842 }
843
844 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
845 {
846 wxListItem info;
847 info.m_text = label;
848 info.m_mask = wxLIST_MASK_TEXT;
849 info.m_itemId = index;
850 info.m_col = col;
851 if ( imageId > -1 )
852 {
853 info.m_image = imageId;
854 info.m_mask |= wxLIST_MASK_IMAGE;
855 }
856 return SetItem(info);
857 }
858
859
860 // Gets the item state
861 int wxListCtrl::GetItemState(long item, long stateMask) const
862 {
863 wxListItem info;
864
865 info.m_mask = wxLIST_MASK_STATE;
866 info.m_stateMask = stateMask;
867 info.m_itemId = item;
868
869 if (!GetItem(info))
870 return 0;
871
872 return info.m_state;
873 }
874
875 // Sets the item state
876 bool wxListCtrl::SetItemState(long item, long state, long stateMask)
877 {
878 // NB: don't use SetItem() here as it doesn't work with the virtual list
879 // controls
880 LV_ITEM lvItem;
881 wxZeroMemory(lvItem);
882
883 wxConvertToMSWFlags(state, stateMask, lvItem);
884
885 // for the virtual list controls we need to refresh the previously focused
886 // item manually when changing focus without changing selection
887 // programmatically because otherwise it keeps its focus rectangle until
888 // next repaint (yet another comctl32 bug)
889 long focusOld;
890 if ( IsVirtual() &&
891 (stateMask & wxLIST_STATE_FOCUSED) &&
892 (state & wxLIST_STATE_FOCUSED) )
893 {
894 focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
895 }
896 else
897 {
898 focusOld = -1;
899 }
900
901 if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
902 (WPARAM)item, (LPARAM)&lvItem) )
903 {
904 wxLogLastError(_T("ListView_SetItemState"));
905
906 return false;
907 }
908
909 if ( focusOld != -1 )
910 {
911 // no need to refresh the item if it was previously selected, it would
912 // only result in annoying flicker
913 if ( !(GetItemState(focusOld,
914 wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
915 {
916 RefreshItem(focusOld);
917 }
918 }
919
920 return true;
921 }
922
923 // Sets the item image
924 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
925 {
926 return SetItemColumnImage(item, 0, image);
927 }
928
929 // Sets the item image
930 bool wxListCtrl::SetItemColumnImage(long item, long column, int image)
931 {
932 wxListItem info;
933
934 info.m_mask = wxLIST_MASK_IMAGE;
935 info.m_image = image;
936 info.m_itemId = item;
937 info.m_col = column;
938
939 return SetItem(info);
940 }
941
942 // Gets the item text
943 wxString wxListCtrl::GetItemText(long item) const
944 {
945 wxListItem info;
946
947 info.m_mask = wxLIST_MASK_TEXT;
948 info.m_itemId = item;
949
950 if (!GetItem(info))
951 return wxEmptyString;
952 return info.m_text;
953 }
954
955 // Sets the item text
956 void wxListCtrl::SetItemText(long item, const wxString& str)
957 {
958 wxListItem info;
959
960 info.m_mask = wxLIST_MASK_TEXT;
961 info.m_itemId = item;
962 info.m_text = str;
963
964 SetItem(info);
965 }
966
967 // Gets the item data
968 wxUIntPtr wxListCtrl::GetItemData(long item) const
969 {
970 wxListItem info;
971
972 info.m_mask = wxLIST_MASK_DATA;
973 info.m_itemId = item;
974
975 if (!GetItem(info))
976 return 0;
977 return info.m_data;
978 }
979
980 // Sets the item data
981 bool wxListCtrl::SetItemData(long item, long data)
982 {
983 wxListItem info;
984
985 info.m_mask = wxLIST_MASK_DATA;
986 info.m_itemId = item;
987 info.m_data = data;
988
989 return SetItem(info);
990 }
991
992 wxRect wxListCtrl::GetViewRect() const
993 {
994 wxASSERT_MSG( !HasFlag(wxLC_REPORT | wxLC_LIST),
995 _T("wxListCtrl::GetViewRect() only works in icon mode") );
996
997 RECT rc;
998 if ( !ListView_GetViewRect(GetHwnd(), &rc) )
999 {
1000 wxLogDebug(_T("ListView_GetViewRect() failed."));
1001
1002 wxZeroMemory(rc);
1003 }
1004
1005 wxRect rect;
1006 wxCopyRECTToRect(rc, rect);
1007
1008 return rect;
1009 }
1010
1011 // Gets the item rectangle
1012 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
1013 {
1014 RECT rectWin;
1015
1016 int codeWin;
1017 if ( code == wxLIST_RECT_BOUNDS )
1018 codeWin = LVIR_BOUNDS;
1019 else if ( code == wxLIST_RECT_ICON )
1020 codeWin = LVIR_ICON;
1021 else if ( code == wxLIST_RECT_LABEL )
1022 codeWin = LVIR_LABEL;
1023 else
1024 {
1025 wxFAIL_MSG( _T("incorrect code in GetItemRect()") );
1026
1027 codeWin = LVIR_BOUNDS;
1028 }
1029
1030 bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
1031
1032 rect.x = rectWin.left;
1033 rect.y = rectWin.top;
1034 rect.width = rectWin.right - rectWin.left;
1035 rect.height = rectWin.bottom - rectWin.top;
1036
1037 return success;
1038 }
1039
1040 // Gets the item position
1041 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
1042 {
1043 POINT pt;
1044
1045 bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
1046
1047 pos.x = pt.x; pos.y = pt.y;
1048 return success;
1049 }
1050
1051 // Sets the item position.
1052 bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
1053 {
1054 return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
1055 }
1056
1057 // Gets the number of items in the list control
1058 int wxListCtrl::GetItemCount() const
1059 {
1060 return m_count;
1061 }
1062
1063 wxSize wxListCtrl::GetItemSpacing() const
1064 {
1065 const int spacing = ListView_GetItemSpacing(GetHwnd(), (BOOL)HasFlag(wxLC_SMALL_ICON));
1066
1067 return wxSize(LOWORD(spacing), HIWORD(spacing));
1068 }
1069
1070 #if WXWIN_COMPATIBILITY_2_6
1071
1072 int wxListCtrl::GetItemSpacing(bool isSmall) const
1073 {
1074 return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
1075 }
1076
1077 #endif // WXWIN_COMPATIBILITY_2_6
1078
1079 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
1080 {
1081 wxListItem info;
1082 info.m_itemId = item;
1083 info.SetTextColour( col );
1084 SetItem( info );
1085 }
1086
1087 wxColour wxListCtrl::GetItemTextColour( long item ) const
1088 {
1089 wxColour col;
1090 wxListItemInternalData *data = wxGetInternalData(this, item);
1091 if ( data && data->attr )
1092 col = data->attr->GetTextColour();
1093
1094 return col;
1095 }
1096
1097 void wxListCtrl::SetItemBackgroundColour( long item, const wxColour &col )
1098 {
1099 wxListItem info;
1100 info.m_itemId = item;
1101 info.SetBackgroundColour( col );
1102 SetItem( info );
1103 }
1104
1105 wxColour wxListCtrl::GetItemBackgroundColour( long item ) const
1106 {
1107 wxColour col;
1108 wxListItemInternalData *data = wxGetInternalData(this, item);
1109 if ( data && data->attr )
1110 col = data->attr->GetBackgroundColour();
1111
1112 return col;
1113 }
1114
1115 void wxListCtrl::SetItemFont( long item, const wxFont &f )
1116 {
1117 wxListItem info;
1118 info.m_itemId = item;
1119 info.SetFont( f );
1120 SetItem( info );
1121 }
1122
1123 wxFont wxListCtrl::GetItemFont( long item ) const
1124 {
1125 wxFont f;
1126 wxListItemInternalData *data = wxGetInternalData(this, item);
1127 if ( data && data->attr )
1128 f = data->attr->GetFont();
1129
1130 return f;
1131 }
1132
1133 // Gets the number of selected items in the list control
1134 int wxListCtrl::GetSelectedItemCount() const
1135 {
1136 return ListView_GetSelectedCount(GetHwnd());
1137 }
1138
1139 // Gets the text colour of the listview
1140 wxColour wxListCtrl::GetTextColour() const
1141 {
1142 COLORREF ref = ListView_GetTextColor(GetHwnd());
1143 wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
1144 return col;
1145 }
1146
1147 // Sets the text colour of the listview
1148 void wxListCtrl::SetTextColour(const wxColour& col)
1149 {
1150 ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
1151 }
1152
1153 // Gets the index of the topmost visible item when in
1154 // list or report view
1155 long wxListCtrl::GetTopItem() const
1156 {
1157 return (long) ListView_GetTopIndex(GetHwnd());
1158 }
1159
1160 // Searches for an item, starting from 'item'.
1161 // 'geometry' is one of
1162 // wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
1163 // 'state' is a state bit flag, one or more of
1164 // wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
1165 // item can be -1 to find the first item that matches the
1166 // specified flags.
1167 // Returns the item or -1 if unsuccessful.
1168 long wxListCtrl::GetNextItem(long item, int geom, int state) const
1169 {
1170 long flags = 0;
1171
1172 if ( geom == wxLIST_NEXT_ABOVE )
1173 flags |= LVNI_ABOVE;
1174 if ( geom == wxLIST_NEXT_ALL )
1175 flags |= LVNI_ALL;
1176 if ( geom == wxLIST_NEXT_BELOW )
1177 flags |= LVNI_BELOW;
1178 if ( geom == wxLIST_NEXT_LEFT )
1179 flags |= LVNI_TOLEFT;
1180 if ( geom == wxLIST_NEXT_RIGHT )
1181 flags |= LVNI_TORIGHT;
1182
1183 if ( state & wxLIST_STATE_CUT )
1184 flags |= LVNI_CUT;
1185 if ( state & wxLIST_STATE_DROPHILITED )
1186 flags |= LVNI_DROPHILITED;
1187 if ( state & wxLIST_STATE_FOCUSED )
1188 flags |= LVNI_FOCUSED;
1189 if ( state & wxLIST_STATE_SELECTED )
1190 flags |= LVNI_SELECTED;
1191
1192 return (long) ListView_GetNextItem(GetHwnd(), item, flags);
1193 }
1194
1195
1196 wxImageList *wxListCtrl::GetImageList(int which) const
1197 {
1198 if ( which == wxIMAGE_LIST_NORMAL )
1199 {
1200 return m_imageListNormal;
1201 }
1202 else if ( which == wxIMAGE_LIST_SMALL )
1203 {
1204 return m_imageListSmall;
1205 }
1206 else if ( which == wxIMAGE_LIST_STATE )
1207 {
1208 return m_imageListState;
1209 }
1210 return NULL;
1211 }
1212
1213 void wxListCtrl::SetImageList(wxImageList *imageList, int which)
1214 {
1215 int flags = 0;
1216 if ( which == wxIMAGE_LIST_NORMAL )
1217 {
1218 flags = LVSIL_NORMAL;
1219 if (m_ownsImageListNormal) delete m_imageListNormal;
1220 m_imageListNormal = imageList;
1221 m_ownsImageListNormal = false;
1222 }
1223 else if ( which == wxIMAGE_LIST_SMALL )
1224 {
1225 flags = LVSIL_SMALL;
1226 if (m_ownsImageListSmall) delete m_imageListSmall;
1227 m_imageListSmall = imageList;
1228 m_ownsImageListSmall = false;
1229 }
1230 else if ( which == wxIMAGE_LIST_STATE )
1231 {
1232 flags = LVSIL_STATE;
1233 if (m_ownsImageListState) delete m_imageListState;
1234 m_imageListState = imageList;
1235 m_ownsImageListState = false;
1236 }
1237 (void) ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
1238 }
1239
1240 void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
1241 {
1242 SetImageList(imageList, which);
1243 if ( which == wxIMAGE_LIST_NORMAL )
1244 m_ownsImageListNormal = true;
1245 else if ( which == wxIMAGE_LIST_SMALL )
1246 m_ownsImageListSmall = true;
1247 else if ( which == wxIMAGE_LIST_STATE )
1248 m_ownsImageListState = true;
1249 }
1250
1251 // ----------------------------------------------------------------------------
1252 // Operations
1253 // ----------------------------------------------------------------------------
1254
1255 // Arranges the items
1256 bool wxListCtrl::Arrange(int flag)
1257 {
1258 UINT code = 0;
1259 if ( flag == wxLIST_ALIGN_LEFT )
1260 code = LVA_ALIGNLEFT;
1261 else if ( flag == wxLIST_ALIGN_TOP )
1262 code = LVA_ALIGNTOP;
1263 else if ( flag == wxLIST_ALIGN_DEFAULT )
1264 code = LVA_DEFAULT;
1265 else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
1266 code = LVA_SNAPTOGRID;
1267
1268 return (ListView_Arrange(GetHwnd(), code) != 0);
1269 }
1270
1271 // Deletes an item
1272 bool wxListCtrl::DeleteItem(long item)
1273 {
1274 if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
1275 {
1276 wxLogLastError(_T("ListView_DeleteItem"));
1277 return false;
1278 }
1279
1280 m_count--;
1281 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1282 wxT("m_count should match ListView_GetItemCount"));
1283
1284 // the virtual list control doesn't refresh itself correctly, help it
1285 if ( IsVirtual() )
1286 {
1287 // we need to refresh all the lines below the one which was deleted
1288 wxRect rectItem;
1289 if ( item > 0 && GetItemCount() )
1290 {
1291 GetItemRect(item - 1, rectItem);
1292 }
1293 else
1294 {
1295 rectItem.y =
1296 rectItem.height = 0;
1297 }
1298
1299 wxRect rectWin = GetRect();
1300 rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
1301 rectWin.y = rectItem.GetBottom();
1302
1303 RefreshRect(rectWin);
1304 }
1305
1306 return true;
1307 }
1308
1309 // Deletes all items
1310 bool wxListCtrl::DeleteAllItems()
1311 {
1312 return ListView_DeleteAllItems(GetHwnd()) != 0;
1313 }
1314
1315 // Deletes all items
1316 bool wxListCtrl::DeleteAllColumns()
1317 {
1318 while ( m_colCount > 0 )
1319 {
1320 if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
1321 {
1322 wxLogLastError(wxT("ListView_DeleteColumn"));
1323
1324 return false;
1325 }
1326
1327 m_colCount--;
1328 }
1329
1330 wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
1331
1332 return true;
1333 }
1334
1335 // Deletes a column
1336 bool wxListCtrl::DeleteColumn(int col)
1337 {
1338 bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
1339
1340 if ( success && (m_colCount > 0) )
1341 m_colCount --;
1342 return success;
1343 }
1344
1345 // Clears items, and columns if there are any.
1346 void wxListCtrl::ClearAll()
1347 {
1348 DeleteAllItems();
1349 if ( m_colCount > 0 )
1350 DeleteAllColumns();
1351 }
1352
1353 wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
1354 {
1355 wxASSERT( (textControlClass->IsKindOf(CLASSINFO(wxTextCtrl))) );
1356
1357 // ListView_EditLabel requires that the list has focus.
1358 SetFocus();
1359
1360 WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
1361 if ( !hWnd )
1362 {
1363 // failed to start editing
1364 return NULL;
1365 }
1366
1367 // [re]create the text control wrapping the HWND we got
1368 if ( m_textCtrl )
1369 {
1370 m_textCtrl->UnsubclassWin();
1371 m_textCtrl->SetHWND(0);
1372 delete m_textCtrl;
1373 }
1374
1375 m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
1376 m_textCtrl->SetHWND(hWnd);
1377 m_textCtrl->SubclassWin(hWnd);
1378 m_textCtrl->SetParent(this);
1379
1380 // we must disallow TABbing away from the control while the edit contol is
1381 // shown because this leaves it in some strange state (just try removing
1382 // this line and then pressing TAB while editing an item in listctrl
1383 // inside a panel)
1384 m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
1385
1386 return m_textCtrl;
1387 }
1388
1389 // End label editing, optionally cancelling the edit
1390 bool wxListCtrl::EndEditLabel(bool cancel)
1391 {
1392 // m_textCtrl is not always ready, ie. in EVT_LIST_BEGIN_LABEL_EDIT
1393 HWND hwnd = ListView_GetEditControl(GetHwnd());
1394 bool b = (hwnd != NULL);
1395 if (b)
1396 {
1397 if (cancel)
1398 ::SetWindowText(hwnd, wxEmptyString); // dubious but better than nothing
1399 if (m_textCtrl)
1400 {
1401 m_textCtrl->UnsubclassWin();
1402 m_textCtrl->SetHWND(0);
1403 delete m_textCtrl;
1404 m_textCtrl = NULL;
1405 }
1406 ::DestroyWindow(hwnd);
1407 }
1408 return b;
1409 }
1410
1411 // Ensures this item is visible
1412 bool wxListCtrl::EnsureVisible(long item)
1413 {
1414 return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != FALSE;
1415 }
1416
1417 // Find an item whose label matches this string, starting from the item after 'start'
1418 // or the beginning if 'start' is -1.
1419 long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
1420 {
1421 LV_FINDINFO findInfo;
1422
1423 findInfo.flags = LVFI_STRING;
1424 if ( partial )
1425 findInfo.flags |= LVFI_PARTIAL;
1426 findInfo.psz = str;
1427
1428 // ListView_FindItem() excludes the first item from search and to look
1429 // through all the items you need to start from -1 which is unnatural and
1430 // inconsistent with the generic version - so we adjust the index
1431 if (start != -1)
1432 start --;
1433 return ListView_FindItem(GetHwnd(), (int) start, &findInfo);
1434 }
1435
1436 // Find an item whose data matches this data, starting from the item after 'start'
1437 // or the beginning if 'start' is -1.
1438 // NOTE : Lindsay Mathieson - 14-July-2002
1439 // No longer use ListView_FindItem as the data attribute is now stored
1440 // in a wxListItemInternalData structure refernced by the actual lParam
1441 long wxListCtrl::FindItem(long start, wxUIntPtr data)
1442 {
1443 long idx = start + 1;
1444 long count = GetItemCount();
1445
1446 while (idx < count)
1447 {
1448 if (GetItemData(idx) == data)
1449 return idx;
1450 idx++;
1451 };
1452
1453 return -1;
1454 }
1455
1456 // Find an item nearest this position in the specified direction, starting from
1457 // the item after 'start' or the beginning if 'start' is -1.
1458 long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
1459 {
1460 LV_FINDINFO findInfo;
1461
1462 findInfo.flags = LVFI_NEARESTXY;
1463 findInfo.pt.x = pt.x;
1464 findInfo.pt.y = pt.y;
1465 findInfo.vkDirection = VK_RIGHT;
1466
1467 if ( direction == wxLIST_FIND_UP )
1468 findInfo.vkDirection = VK_UP;
1469 else if ( direction == wxLIST_FIND_DOWN )
1470 findInfo.vkDirection = VK_DOWN;
1471 else if ( direction == wxLIST_FIND_LEFT )
1472 findInfo.vkDirection = VK_LEFT;
1473 else if ( direction == wxLIST_FIND_RIGHT )
1474 findInfo.vkDirection = VK_RIGHT;
1475
1476 return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
1477 }
1478
1479 // Determines which item (if any) is at the specified point,
1480 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
1481 long wxListCtrl::HitTest(const wxPoint& point, int& flags)
1482 {
1483 LV_HITTESTINFO hitTestInfo;
1484 hitTestInfo.pt.x = (int) point.x;
1485 hitTestInfo.pt.y = (int) point.y;
1486
1487 ListView_HitTest(GetHwnd(), & hitTestInfo);
1488
1489 flags = 0;
1490
1491 if ( hitTestInfo.flags & LVHT_ABOVE )
1492 flags |= wxLIST_HITTEST_ABOVE;
1493 if ( hitTestInfo.flags & LVHT_BELOW )
1494 flags |= wxLIST_HITTEST_BELOW;
1495 if ( hitTestInfo.flags & LVHT_TOLEFT )
1496 flags |= wxLIST_HITTEST_TOLEFT;
1497 if ( hitTestInfo.flags & LVHT_TORIGHT )
1498 flags |= wxLIST_HITTEST_TORIGHT;
1499
1500 if ( hitTestInfo.flags & LVHT_NOWHERE )
1501 flags |= wxLIST_HITTEST_NOWHERE;
1502
1503 // note a bug or at least a very strange feature of comtl32.dll (tested
1504 // with version 4.0 under Win95 and 6.0 under Win 2003): if you click to
1505 // the right of the item label, ListView_HitTest() returns a combination of
1506 // LVHT_ONITEMICON, LVHT_ONITEMLABEL and LVHT_ONITEMSTATEICON -- filter out
1507 // the bits which don't make sense
1508 if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
1509 {
1510 flags |= wxLIST_HITTEST_ONITEMLABEL;
1511
1512 // do not translate LVHT_ONITEMICON here, as per above
1513 }
1514 else
1515 {
1516 if ( hitTestInfo.flags & LVHT_ONITEMICON )
1517 flags |= wxLIST_HITTEST_ONITEMICON;
1518 if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
1519 flags |= wxLIST_HITTEST_ONITEMSTATEICON;
1520 }
1521
1522 return (long) hitTestInfo.iItem;
1523 }
1524
1525 // Inserts an item, returning the index of the new item if successful,
1526 // -1 otherwise.
1527 long wxListCtrl::InsertItem(const wxListItem& info)
1528 {
1529 wxASSERT_MSG( !IsVirtual(), _T("can't be used with virtual controls") );
1530
1531 LV_ITEM item;
1532 wxConvertToMSWListItem(this, info, item);
1533 item.mask &= ~LVIF_PARAM;
1534
1535 // check wether we need to allocate our internal data
1536 bool needInternalData = ((info.m_mask & wxLIST_MASK_DATA) || info.HasAttributes());
1537 if (needInternalData)
1538 {
1539 m_AnyInternalData = true;
1540 item.mask |= LVIF_PARAM;
1541
1542 // internal stucture that manages data
1543 wxListItemInternalData *data = new wxListItemInternalData();
1544 item.lParam = (LPARAM) data;
1545
1546 if (info.m_mask & wxLIST_MASK_DATA)
1547 data->lParam = info.m_data;
1548
1549 // check whether it has any custom attributes
1550 if ( info.HasAttributes() )
1551 {
1552 // take copy of attributes
1553 data->attr = new wxListItemAttr(*info.GetAttributes());
1554
1555 // and remember that we have some now...
1556 m_hasAnyAttr = true;
1557 }
1558 };
1559
1560 long rv = ListView_InsertItem(GetHwnd(), & item);
1561
1562 m_count++;
1563 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
1564 wxT("m_count should match ListView_GetItemCount"));
1565
1566 return rv;
1567 }
1568
1569 long wxListCtrl::InsertItem(long index, const wxString& label)
1570 {
1571 wxListItem info;
1572 info.m_text = label;
1573 info.m_mask = wxLIST_MASK_TEXT;
1574 info.m_itemId = index;
1575 return InsertItem(info);
1576 }
1577
1578 // Inserts an image item
1579 long wxListCtrl::InsertItem(long index, int imageIndex)
1580 {
1581 wxListItem info;
1582 info.m_image = imageIndex;
1583 info.m_mask = wxLIST_MASK_IMAGE;
1584 info.m_itemId = index;
1585 return InsertItem(info);
1586 }
1587
1588 // Inserts an image/string item
1589 long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
1590 {
1591 wxListItem info;
1592 info.m_image = imageIndex;
1593 info.m_text = label;
1594 info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
1595 info.m_itemId = index;
1596 return InsertItem(info);
1597 }
1598
1599 // For list view mode (only), inserts a column.
1600 long wxListCtrl::InsertColumn(long col, const wxListItem& item)
1601 {
1602 LV_COLUMN lvCol;
1603 wxConvertToMSWListCol(GetHwnd(), col, item, lvCol);
1604
1605 if ( !(lvCol.mask & LVCF_WIDTH) )
1606 {
1607 // always give some width to the new column: this one is compatible
1608 // with the generic version
1609 lvCol.mask |= LVCF_WIDTH;
1610 lvCol.cx = 80;
1611 }
1612
1613 long n = ListView_InsertColumn(GetHwnd(), col, &lvCol);
1614 if ( n != -1 )
1615 {
1616 m_colCount++;
1617 }
1618 else // failed to insert?
1619 {
1620 wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
1621 lvCol.pszText);
1622 }
1623
1624 return n;
1625 }
1626
1627 long wxListCtrl::InsertColumn(long col,
1628 const wxString& heading,
1629 int format,
1630 int width)
1631 {
1632 wxListItem item;
1633 item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
1634 item.m_text = heading;
1635 if ( width > -1 )
1636 {
1637 item.m_mask |= wxLIST_MASK_WIDTH;
1638 item.m_width = width;
1639 }
1640 item.m_format = format;
1641
1642 return InsertColumn(col, item);
1643 }
1644
1645 // scroll the control by the given number of pixels (exception: in list view,
1646 // dx is interpreted as number of columns)
1647 bool wxListCtrl::ScrollList(int dx, int dy)
1648 {
1649 if ( !ListView_Scroll(GetHwnd(), dx, dy) )
1650 {
1651 wxLogDebug(_T("ListView_Scroll(%d, %d) failed"), dx, dy);
1652
1653 return false;
1654 }
1655
1656 return true;
1657 }
1658
1659 // Sort items.
1660
1661 // fn is a function which takes 3 long arguments: item1, item2, data.
1662 // item1 is the long data associated with a first item (NOT the index).
1663 // item2 is the long data associated with a second item (NOT the index).
1664 // data is the same value as passed to SortItems.
1665 // The return value is a negative number if the first item should precede the second
1666 // item, a positive number of the second item should precede the first,
1667 // or zero if the two items are equivalent.
1668
1669 // data is arbitrary data to be passed to the sort function.
1670
1671 // Internal structures for proxying the user compare function
1672 // so that we can pass it the *real* user data
1673
1674 // translate lParam data and call user func
1675 struct wxInternalDataSort
1676 {
1677 wxListCtrlCompare user_fn;
1678 long data;
1679 };
1680
1681 int CALLBACK wxInternalDataCompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
1682 {
1683 struct wxInternalDataSort *internalData = (struct wxInternalDataSort *) lParamSort;
1684
1685 wxListItemInternalData *data1 = (wxListItemInternalData *) lParam1;
1686 wxListItemInternalData *data2 = (wxListItemInternalData *) lParam2;
1687
1688 long d1 = (data1 == NULL ? 0 : data1->lParam);
1689 long d2 = (data2 == NULL ? 0 : data2->lParam);
1690
1691 return internalData->user_fn(d1, d2, internalData->data);
1692
1693 }
1694
1695 bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
1696 {
1697 struct wxInternalDataSort internalData;
1698 internalData.user_fn = fn;
1699 internalData.data = data;
1700
1701 // WPARAM cast is needed for mingw/cygwin
1702 if ( !ListView_SortItems(GetHwnd(),
1703 wxInternalDataCompareFunc,
1704 (WPARAM) &internalData) )
1705 {
1706 wxLogDebug(_T("ListView_SortItems() failed"));
1707
1708 return false;
1709 }
1710
1711 return true;
1712 }
1713
1714
1715
1716 // ----------------------------------------------------------------------------
1717 // message processing
1718 // ----------------------------------------------------------------------------
1719
1720 bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id)
1721 {
1722 if (cmd == EN_UPDATE)
1723 {
1724 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
1725 event.SetEventObject( this );
1726 ProcessCommand(event);
1727 return true;
1728 }
1729 else if (cmd == EN_KILLFOCUS)
1730 {
1731 wxCommandEvent event(wxEVT_KILL_FOCUS, id);
1732 event.SetEventObject( this );
1733 ProcessCommand(event);
1734 return true;
1735 }
1736 else
1737 return false;
1738 }
1739
1740 bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
1741 {
1742
1743 // prepare the event
1744 // -----------------
1745
1746 wxListEvent event(wxEVT_NULL, m_windowId);
1747 event.SetEventObject(this);
1748
1749 wxEventType eventType = wxEVT_NULL;
1750
1751 NMHDR *nmhdr = (NMHDR *)lParam;
1752
1753 // if your compiler is as broken as this, you should really change it: this
1754 // code is needed for normal operation! #ifdef below is only useful for
1755 // automatic rebuilds which are done with a very old compiler version
1756 #ifdef HDN_BEGINTRACKA
1757
1758 // check for messages from the header (in report view)
1759 HWND hwndHdr = ListView_GetHeader(GetHwnd());
1760
1761 // is it a message from the header?
1762 if ( nmhdr->hwndFrom == hwndHdr )
1763 {
1764 HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
1765
1766 event.m_itemIndex = -1;
1767
1768 switch ( nmhdr->code )
1769 {
1770 // yet another comctl32.dll bug: under NT/W2K it sends Unicode
1771 // TRACK messages even to ANSI programs: on my system I get
1772 // HDN_BEGINTRACKW and HDN_ENDTRACKA and no HDN_TRACK at all!
1773 //
1774 // work around is to simply catch both versions and hope that it
1775 // works (why should this message exist in ANSI and Unicode is
1776 // beyond me as it doesn't deal with strings at all...)
1777 //
1778 // note that fr HDN_TRACK another possibility could be to use
1779 // HDN_ITEMCHANGING but it is sent even after HDN_ENDTRACK and when
1780 // something other than the item width changes so we'd have to
1781 // filter out the unwanted events then
1782 case HDN_BEGINTRACKA:
1783 case HDN_BEGINTRACKW:
1784 eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
1785 // fall through
1786
1787 case HDN_TRACKA:
1788 case HDN_TRACKW:
1789 if ( eventType == wxEVT_NULL )
1790 eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
1791 // fall through
1792
1793 case HDN_ENDTRACKA:
1794 case HDN_ENDTRACKW:
1795 if ( eventType == wxEVT_NULL )
1796 eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
1797
1798 event.m_item.m_width = nmHDR->pitem->cxy;
1799 event.m_col = nmHDR->iItem;
1800 break;
1801
1802 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
1803 case GN_CONTEXTMENU:
1804 #endif //__WXWINCE__
1805 case NM_RCLICK:
1806 {
1807 eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
1808 event.m_col = -1;
1809
1810 // find the column clicked: we have to search for it
1811 // ourselves as the notification message doesn't provide
1812 // this info
1813
1814 // where did the click occur?
1815 POINT ptClick;
1816 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
1817 if(nmhdr->code == GN_CONTEXTMENU) {
1818 ptClick = ((NMRGINFO*)nmhdr)->ptAction;
1819 } else
1820 #endif //__WXWINCE__
1821 if ( !::GetCursorPos(&ptClick) )
1822 {
1823 wxLogLastError(_T("GetCursorPos"));
1824 }
1825
1826 if ( !::ScreenToClient(GetHwnd(), &ptClick) )
1827 {
1828 wxLogLastError(_T("ScreenToClient(listctrl header)"));
1829 }
1830
1831 event.m_pointDrag.x = ptClick.x;
1832 event.m_pointDrag.y = ptClick.y;
1833
1834 int colCount = Header_GetItemCount(hwndHdr);
1835
1836 RECT rect;
1837 for ( int col = 0; col < colCount; col++ )
1838 {
1839 if ( Header_GetItemRect(hwndHdr, col, &rect) )
1840 {
1841 if ( ::PtInRect(&rect, ptClick) )
1842 {
1843 event.m_col = col;
1844 break;
1845 }
1846 }
1847 }
1848 }
1849 break;
1850
1851 case HDN_GETDISPINFOW:
1852 // letting Windows XP handle this message results in mysterious
1853 // crashes in comctl32.dll seemingly because of bad message
1854 // parameters
1855 //
1856 // I have no idea what is the real cause of the bug (which is,
1857 // just to make things interesting, is impossible to reproduce
1858 // reliably) but ignoring all these messages does fix it and
1859 // doesn't seem to have any negative consequences
1860 return true;
1861
1862 default:
1863 return wxControl::MSWOnNotify(idCtrl, lParam, result);
1864 }
1865 }
1866 else
1867 #endif // defined(HDN_BEGINTRACKA)
1868 if ( nmhdr->hwndFrom == GetHwnd() )
1869 {
1870 // almost all messages use NM_LISTVIEW
1871 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
1872
1873 const int iItem = nmLV->iItem;
1874
1875
1876 // FreeAllInternalData will cause LVN_ITEMCHANG* messages, which can be
1877 // ignored for efficiency. It is done here because the internal data is in the
1878 // process of being deleted so we don't want to try and access it below.
1879 if ( m_ignoreChangeMessages &&
1880 ( (nmLV->hdr.code == LVN_ITEMCHANGED) ||
1881 (nmLV->hdr.code == LVN_ITEMCHANGING)) )
1882 {
1883 return true;
1884 }
1885
1886
1887 // If we have a valid item then check if there is a data value
1888 // associated with it and put it in the event.
1889 if ( iItem >= 0 && iItem < GetItemCount() )
1890 {
1891 wxListItemInternalData *internaldata =
1892 wxGetInternalData(GetHwnd(), iItem);
1893
1894 if ( internaldata )
1895 event.m_item.m_data = internaldata->lParam;
1896 }
1897
1898 bool processed = true;
1899 switch ( nmhdr->code )
1900 {
1901 case LVN_BEGINRDRAG:
1902 eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
1903 // fall through
1904
1905 case LVN_BEGINDRAG:
1906 if ( eventType == wxEVT_NULL )
1907 {
1908 eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
1909 }
1910
1911 event.m_itemIndex = iItem;
1912 event.m_pointDrag.x = nmLV->ptAction.x;
1913 event.m_pointDrag.y = nmLV->ptAction.y;
1914 break;
1915
1916 // NB: we have to handle both *A and *W versions here because some
1917 // versions of comctl32.dll send ANSI messages even to the
1918 // Unicode windows
1919 case LVN_BEGINLABELEDITA:
1920 case LVN_BEGINLABELEDITW:
1921 {
1922 wxLV_ITEM item;
1923 if ( nmhdr->code == LVN_BEGINLABELEDITA )
1924 {
1925 item.Init(((LV_DISPINFOA *)lParam)->item);
1926 }
1927 else // LVN_BEGINLABELEDITW
1928 {
1929 item.Init(((LV_DISPINFOW *)lParam)->item);
1930 }
1931
1932 eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
1933 wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
1934 event.m_itemIndex = event.m_item.m_itemId;
1935 }
1936 break;
1937
1938 case LVN_ENDLABELEDITA:
1939 case LVN_ENDLABELEDITW:
1940 {
1941 wxLV_ITEM item;
1942 if ( nmhdr->code == LVN_ENDLABELEDITA )
1943 {
1944 item.Init(((LV_DISPINFOA *)lParam)->item);
1945 }
1946 else // LVN_ENDLABELEDITW
1947 {
1948 item.Init(((LV_DISPINFOW *)lParam)->item);
1949 }
1950
1951 // was editing cancelled?
1952 const LV_ITEM& lvi = (LV_ITEM)item;
1953 if ( !lvi.pszText || lvi.iItem == -1 )
1954 {
1955 // don't keep a stale wxTextCtrl around
1956 if ( m_textCtrl )
1957 {
1958 // EDIT control will be deleted by the list control itself so
1959 // prevent us from deleting it as well
1960 m_textCtrl->UnsubclassWin();
1961 m_textCtrl->SetHWND(0);
1962 delete m_textCtrl;
1963 m_textCtrl = NULL;
1964 }
1965
1966 event.SetEditCanceled(true);
1967 }
1968
1969 eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
1970 wxConvertFromMSWListItem(NULL, event.m_item, item);
1971 event.m_itemIndex = event.m_item.m_itemId;
1972 }
1973 break;
1974
1975 case LVN_COLUMNCLICK:
1976 eventType = wxEVT_COMMAND_LIST_COL_CLICK;
1977 event.m_itemIndex = -1;
1978 event.m_col = nmLV->iSubItem;
1979 break;
1980
1981 case LVN_DELETEALLITEMS:
1982 eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
1983 event.m_itemIndex = -1;
1984 break;
1985
1986 case LVN_DELETEITEM:
1987 if ( m_count == 0 )
1988 {
1989 // this should be prevented by the post-processing code
1990 // below, but "just in case"
1991 return false;
1992 }
1993
1994 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
1995 event.m_itemIndex = iItem;
1996 // delete the assoicated internal data
1997 wxDeleteInternalData(this, iItem);
1998 break;
1999
2000 #if WXWIN_COMPATIBILITY_2_4
2001 case LVN_SETDISPINFO:
2002 {
2003 eventType = wxEVT_COMMAND_LIST_SET_INFO;
2004 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
2005 wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
2006 }
2007 break;
2008 #endif
2009
2010 case LVN_INSERTITEM:
2011 eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
2012 event.m_itemIndex = iItem;
2013 break;
2014
2015 case LVN_ITEMCHANGED:
2016 // we translate this catch all message into more interesting
2017 // (and more easy to process) wxWidgets events
2018
2019 // first of all, we deal with the state change events only and
2020 // only for valid items (item == -1 for the virtual list
2021 // control)
2022 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
2023 {
2024 // temp vars for readability
2025 const UINT stOld = nmLV->uOldState;
2026 const UINT stNew = nmLV->uNewState;
2027
2028 event.m_item.SetId(iItem);
2029 event.m_item.SetMask(wxLIST_MASK_TEXT |
2030 wxLIST_MASK_IMAGE |
2031 wxLIST_MASK_DATA);
2032 GetItem(event.m_item);
2033
2034 // has the focus changed?
2035 if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
2036 {
2037 eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
2038 event.m_itemIndex = iItem;
2039 }
2040
2041 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
2042 {
2043 if ( eventType != wxEVT_NULL )
2044 {
2045 // focus and selection have both changed: send the
2046 // focus event from here and the selection one
2047 // below
2048 event.SetEventType(eventType);
2049 (void)GetEventHandler()->ProcessEvent(event);
2050 }
2051 else // no focus event to send
2052 {
2053 // then need to set m_itemIndex as it wasn't done
2054 // above
2055 event.m_itemIndex = iItem;
2056 }
2057
2058 eventType = stNew & LVIS_SELECTED
2059 ? wxEVT_COMMAND_LIST_ITEM_SELECTED
2060 : wxEVT_COMMAND_LIST_ITEM_DESELECTED;
2061 }
2062 }
2063
2064 if ( eventType == wxEVT_NULL )
2065 {
2066 // not an interesting event for us
2067 return false;
2068 }
2069
2070 break;
2071
2072 case LVN_KEYDOWN:
2073 {
2074 LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
2075 WORD wVKey = info->wVKey;
2076
2077 // get the current selection
2078 long lItem = GetNextItem(-1,
2079 wxLIST_NEXT_ALL,
2080 wxLIST_STATE_SELECTED);
2081
2082 // <Enter> or <Space> activate the selected item if any (but
2083 // not with Shift and/or Ctrl as then they have a predefined
2084 // meaning for the list view)
2085 if ( lItem != -1 &&
2086 (wVKey == VK_RETURN || wVKey == VK_SPACE) &&
2087 !(wxIsShiftDown() || wxIsCtrlDown()) )
2088 {
2089 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2090 }
2091 else
2092 {
2093 eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
2094
2095 // wxCharCodeMSWToWX() returns 0 if the key is an ASCII
2096 // value which should be used as is
2097 int code = wxCharCodeMSWToWX(wVKey);
2098 event.m_code = code ? code : wVKey;
2099 }
2100
2101 event.m_itemIndex =
2102 event.m_item.m_itemId = lItem;
2103
2104 if ( lItem != -1 )
2105 {
2106 // fill the other fields too
2107 event.m_item.m_text = GetItemText(lItem);
2108 event.m_item.m_data = GetItemData(lItem);
2109 }
2110 }
2111 break;
2112
2113 case NM_DBLCLK:
2114 // if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
2115 // anything else
2116 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2117 {
2118 return true;
2119 }
2120
2121 // else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
2122 // if it happened on an item (and not on empty place)
2123 if ( iItem == -1 )
2124 {
2125 // not on item
2126 return false;
2127 }
2128
2129 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2130 event.m_itemIndex = iItem;
2131 event.m_item.m_text = GetItemText(iItem);
2132 event.m_item.m_data = GetItemData(iItem);
2133 break;
2134
2135 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2136 case GN_CONTEXTMENU:
2137 #endif //__WXWINCE__
2138 case NM_RCLICK:
2139 // if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
2140 // don't do anything else
2141 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2142 {
2143 return true;
2144 }
2145
2146 // else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
2147 LV_HITTESTINFO lvhti;
2148 wxZeroMemory(lvhti);
2149
2150 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) && _WIN32_WCE < 400
2151 if(nmhdr->code == GN_CONTEXTMENU) {
2152 lvhti.pt = ((NMRGINFO*)nmhdr)->ptAction;
2153 } else
2154 #endif //__WXWINCE__
2155 ::GetCursorPos(&(lvhti.pt));
2156 ::ScreenToClient(GetHwnd(),&(lvhti.pt));
2157 if ( ListView_HitTest(GetHwnd(),&lvhti) != -1 )
2158 {
2159 if ( lvhti.flags & LVHT_ONITEM )
2160 {
2161 eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
2162 event.m_itemIndex = lvhti.iItem;
2163 event.m_pointDrag.x = lvhti.pt.x;
2164 event.m_pointDrag.y = lvhti.pt.y;
2165 }
2166 }
2167 break;
2168
2169 #ifdef NM_CUSTOMDRAW
2170 case NM_CUSTOMDRAW:
2171 *result = OnCustomDraw(lParam);
2172
2173 return *result != CDRF_DODEFAULT;
2174 #endif // _WIN32_IE >= 0x300
2175
2176 case LVN_ODCACHEHINT:
2177 {
2178 const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
2179
2180 eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
2181
2182 // we get some really stupid cache hints like ones for
2183 // items in range 0..0 for an empty control or, after
2184 // deleting an item, for items in invalid range -- filter
2185 // this garbage out
2186 if ( cacheHint->iFrom > cacheHint->iTo )
2187 return false;
2188
2189 event.m_oldItemIndex = cacheHint->iFrom;
2190
2191 const long iMax = GetItemCount();
2192 event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
2193 : iMax - 1;
2194 }
2195 break;
2196
2197 #ifdef HAVE_NMLVFINDITEM
2198 case LVN_ODFINDITEM:
2199 // this message is only used with the virtual list control but
2200 // even there we don't want to always use it: in a control with
2201 // sufficiently big number of items (defined as > 1000 here),
2202 // accidentally pressing a key could result in hanging an
2203 // application waiting while it performs linear search
2204 if ( IsVirtual() && GetItemCount() <= 1000 )
2205 {
2206 NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam;
2207
2208 // no match by default
2209 *result = -1;
2210
2211 // we only handle string-based searches here
2212 //
2213 // TODO: what about LVFI_PARTIAL, should we handle this?
2214 if ( !(pFindInfo->lvfi.flags & LVFI_STRING) )
2215 {
2216 return false;
2217 }
2218
2219 const wxChar * const searchstr = pFindInfo->lvfi.psz;
2220 const size_t len = wxStrlen(searchstr);
2221
2222 // this is the first item we should examine, search from it
2223 // wrapping if necessary
2224 const int startPos = pFindInfo->iStart;
2225 const int maxPos = GetItemCount();
2226 wxCHECK_MSG( startPos <= maxPos, false,
2227 _T("bad starting position in LVN_ODFINDITEM") );
2228
2229 int currentPos = startPos;
2230 do
2231 {
2232 // wrap to the beginning if necessary
2233 if ( currentPos == maxPos )
2234 {
2235 // somewhat surprizingly, LVFI_WRAP isn't set in
2236 // flags but we still should wrap
2237 currentPos = 0;
2238 }
2239
2240 // does this item begin with searchstr?
2241 if ( wxStrnicmp(searchstr,
2242 GetItemText(currentPos), len) == 0 )
2243 {
2244 *result = currentPos;
2245 break;
2246 }
2247 }
2248 while ( ++currentPos != startPos );
2249
2250 if ( *result == -1 )
2251 {
2252 // not found
2253 return false;
2254 }
2255
2256 SetItemState(*result,
2257 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED,
2258 wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED);
2259 EnsureVisible(*result);
2260 return true;
2261 }
2262 else
2263 {
2264 processed = false;
2265 }
2266 break;
2267 #endif // HAVE_NMLVFINDITEM
2268
2269 case LVN_GETDISPINFO:
2270 if ( IsVirtual() )
2271 {
2272 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
2273
2274 LV_ITEM& lvi = info->item;
2275 long item = lvi.iItem;
2276
2277 if ( lvi.mask & LVIF_TEXT )
2278 {
2279 wxString text = OnGetItemText(item, lvi.iSubItem);
2280 wxStrncpy(lvi.pszText, text, lvi.cchTextMax);
2281 }
2282
2283 // see comment at the end of wxListCtrl::GetColumn()
2284 #ifdef NM_CUSTOMDRAW
2285 if ( lvi.mask & LVIF_IMAGE )
2286 {
2287 lvi.iImage = OnGetItemColumnImage(item, lvi.iSubItem);
2288 }
2289 #endif // NM_CUSTOMDRAW
2290
2291 // a little dose of healthy paranoia: as we never use
2292 // LVM_SETCALLBACKMASK we're not supposed to get these ones
2293 wxASSERT_MSG( !(lvi.mask & LVIF_STATE),
2294 _T("we don't support state callbacks yet!") );
2295
2296 return true;
2297 }
2298 // fall through
2299
2300 default:
2301 processed = false;
2302 }
2303
2304 if ( !processed )
2305 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2306 }
2307 else
2308 {
2309 // where did this one come from?
2310 return false;
2311 }
2312
2313 // process the event
2314 // -----------------
2315
2316 event.SetEventType(eventType);
2317
2318 bool processed = GetEventHandler()->ProcessEvent(event);
2319
2320 // post processing
2321 // ---------------
2322 switch ( nmhdr->code )
2323 {
2324 case LVN_DELETEALLITEMS:
2325 // always return true to suppress all additional LVN_DELETEITEM
2326 // notifications - this makes deleting all items from a list ctrl
2327 // much faster
2328 *result = TRUE;
2329
2330 // also, we may free all user data now (couldn't do it before as
2331 // the user should have access to it in OnDeleteAllItems() handler)
2332 FreeAllInternalData();
2333
2334 // the control is empty now, synchronize the cached number of items
2335 // with the real one
2336 m_count = 0;
2337 return true;
2338
2339 case LVN_ENDLABELEDITA:
2340 case LVN_ENDLABELEDITW:
2341 // logic here is inverted compared to all the other messages
2342 *result = event.IsAllowed();
2343
2344 // don't keep a stale wxTextCtrl around
2345 if ( m_textCtrl )
2346 {
2347 // EDIT control will be deleted by the list control itself so
2348 // prevent us from deleting it as well
2349 m_textCtrl->UnsubclassWin();
2350 m_textCtrl->SetHWND(0);
2351 delete m_textCtrl;
2352 m_textCtrl = NULL;
2353 }
2354
2355 return true;
2356 }
2357
2358 if ( processed )
2359 *result = !event.IsAllowed();
2360
2361 return processed;
2362 }
2363
2364 // ----------------------------------------------------------------------------
2365 // custom draw stuff
2366 // ----------------------------------------------------------------------------
2367
2368 // see comment at the end of wxListCtrl::GetColumn()
2369 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
2370
2371 static RECT GetCustomDrawnItemRect(const NMCUSTOMDRAW& nmcd)
2372 {
2373 RECT rc;
2374 ListView_GetItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, &rc, LVIR_BOUNDS);
2375
2376 RECT rcIcon;
2377 ListView_GetItemRect(nmcd.hdr.hwndFrom, nmcd.dwItemSpec, &rcIcon, LVIR_ICON);
2378
2379 // exclude the icon part, neither the selection background nor focus rect
2380 // should cover it
2381 rc.left = rcIcon.right;
2382
2383 return rc;
2384 }
2385
2386 static void HandleSubItemPrepaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
2387 {
2388 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2389
2390 HDC hdc = nmcd.hdc;
2391 HWND hwndList = nmcd.hdr.hwndFrom;
2392 const DWORD item = nmcd.dwItemSpec;
2393
2394
2395 // the font must be valid, otherwise we wouldn't be painting the item at all
2396 SelectInHDC selFont(hdc, hfont);
2397
2398 // get the rectangle to paint
2399 RECT rc;
2400 ListView_GetSubItemRect(hwndList, item, pLVCD->iSubItem, LVIR_BOUNDS, &rc);
2401 if ( !pLVCD->iSubItem )
2402 {
2403 // broken ListView_GetSubItemRect() returns the entire item rect for
2404 // 0th subitem while we really need just the part for this column
2405 RECT rc2;
2406 ListView_GetSubItemRect(hwndList, item, 1, LVIR_BOUNDS, &rc2);
2407
2408 rc.right = rc2.left;
2409 rc.left += 4;
2410 }
2411 else // not first subitem
2412 {
2413 rc.left += 6;
2414 }
2415
2416 // get the image and text to draw
2417 wxChar text[512];
2418 LV_ITEM it;
2419 wxZeroMemory(it);
2420 it.mask = LVIF_TEXT | LVIF_IMAGE;
2421 it.iItem = item;
2422 it.iSubItem = pLVCD->iSubItem;
2423 it.pszText = text;
2424 it.cchTextMax = WXSIZEOF(text);
2425 ListView_GetItem(hwndList, &it);
2426
2427 HIMAGELIST himl = ListView_GetImageList(hwndList, LVSIL_SMALL);
2428 if ( himl && ImageList_GetImageCount(himl) )
2429 {
2430 if ( it.iImage != -1 )
2431 {
2432 ImageList_Draw(himl, it.iImage, hdc, rc.left, rc.top,
2433 nmcd.uItemState & CDIS_SELECTED ? ILD_SELECTED
2434 : ILD_TRANSPARENT);
2435 }
2436
2437 // notice that even if this item doesn't have any image, the list
2438 // control still leaves space for the image in the first column if the
2439 // image list is not empty (presumably so that items with and without
2440 // images align?)
2441 if ( it.iImage != -1 || it.iSubItem == 0 )
2442 {
2443 int wImage, hImage;
2444 ImageList_GetIconSize(himl, &wImage, &hImage);
2445
2446 rc.left += wImage + 2;
2447 }
2448 }
2449
2450 ::SetBkMode(hdc, TRANSPARENT);
2451
2452 // TODO: support for centred/right aligned columns
2453 ::DrawText(hdc, text, -1, &rc,
2454 #ifndef __WXWINCE__
2455 DT_WORD_ELLIPSIS |
2456 #endif // __WXWINCE__
2457 DT_NOPREFIX | DT_SINGLELINE | DT_VCENTER);
2458 }
2459
2460 static void HandleItemPostpaint(NMCUSTOMDRAW nmcd)
2461 {
2462 if ( nmcd.uItemState & CDIS_FOCUS )
2463 {
2464 RECT rc = GetCustomDrawnItemRect(nmcd);
2465
2466 // don't use the provided HDC, it's in some strange state by now
2467 ::DrawFocusRect(WindowHDC(nmcd.hdr.hwndFrom), &rc);
2468 }
2469 }
2470
2471 // pLVCD->clrText and clrTextBk should contain the colours to use
2472 static void HandleItemPaint(LPNMLVCUSTOMDRAW pLVCD, HFONT hfont)
2473 {
2474 NMCUSTOMDRAW& nmcd = pLVCD->nmcd; // just a shortcut
2475
2476 const HWND hwndList = nmcd.hdr.hwndFrom;
2477 const int item = nmcd.dwItemSpec;
2478
2479 // unfortunately we can't trust CDIS_SELECTED, it is often set even when
2480 // the item is not at all selected for some reason (comctl32 6), but we
2481 // also can't always trust ListView_GetItem() as it could return the old
2482 // item status if we're called just after the (de)selection, so remember
2483 // the last item to gain selection and also check for it here
2484 for ( int i = -1;; )
2485 {
2486 i = ListView_GetNextItem(hwndList, i, LVNI_SELECTED);
2487 if ( i == -1 )
2488 {
2489 nmcd.uItemState &= ~CDIS_SELECTED;
2490 break;
2491 }
2492
2493 if ( i == item )
2494 {
2495 nmcd.uItemState |= CDIS_SELECTED;
2496 break;
2497 }
2498 }
2499
2500 // same thing for CDIS_FOCUS (except simpler as there is only one of them)
2501 if ( ::GetFocus() == hwndList &&
2502 ListView_GetNextItem(hwndList, (WPARAM)-1, LVNI_FOCUSED) == item )
2503 {
2504 nmcd.uItemState |= CDIS_FOCUS;
2505 }
2506 else
2507 {
2508 nmcd.uItemState &= ~CDIS_FOCUS;
2509 }
2510
2511 if ( nmcd.uItemState & CDIS_SELECTED )
2512 {
2513 int syscolFg, syscolBg;
2514 if ( ::GetFocus() == hwndList )
2515 {
2516 syscolFg = COLOR_HIGHLIGHTTEXT;
2517 syscolBg = COLOR_HIGHLIGHT;
2518 }
2519 else // selected but unfocused
2520 {
2521 syscolFg = COLOR_WINDOWTEXT;
2522 syscolBg = COLOR_BTNFACE;
2523
2524 // don't grey out the icon in this case neither
2525 nmcd.uItemState &= ~CDIS_SELECTED;
2526 }
2527
2528 pLVCD->clrText = ::GetSysColor(syscolFg);
2529 pLVCD->clrTextBk = ::GetSysColor(syscolBg);
2530 }
2531 //else: not selected, use normal colours from pLVCD
2532
2533 HDC hdc = nmcd.hdc;
2534 RECT rc = GetCustomDrawnItemRect(nmcd);
2535
2536 ::SetTextColor(hdc, pLVCD->clrText);
2537 ::FillRect(hdc, &rc, AutoHBRUSH(pLVCD->clrTextBk));
2538
2539 // we could use CDRF_NOTIFYSUBITEMDRAW here but it results in weird repaint
2540 // problems so just draw everything except the focus rect from here instead
2541 const int colCount = Header_GetItemCount(ListView_GetHeader(hwndList));
2542 for ( int col = 0; col < colCount; col++ )
2543 {
2544 pLVCD->iSubItem = col;
2545 HandleSubItemPrepaint(pLVCD, hfont);
2546 }
2547
2548 HandleItemPostpaint(nmcd);
2549 }
2550
2551 static WXLPARAM HandleItemPrepaint(wxListCtrl *listctrl,
2552 LPNMLVCUSTOMDRAW pLVCD,
2553 wxListItemAttr *attr)
2554 {
2555 if ( !attr )
2556 {
2557 // nothing to do for this item
2558 return CDRF_DODEFAULT;
2559 }
2560
2561
2562 // set the colours to use for text drawing
2563 pLVCD->clrText = attr->HasTextColour()
2564 ? wxColourToRGB(attr->GetTextColour())
2565 : wxColourToRGB(listctrl->GetTextColour());
2566 pLVCD->clrTextBk = attr->HasBackgroundColour()
2567 ? wxColourToRGB(attr->GetBackgroundColour())
2568 : wxColourToRGB(listctrl->GetBackgroundColour());
2569
2570 // select the font if non default one is specified
2571 if ( attr->HasFont() )
2572 {
2573 wxFont font = attr->GetFont();
2574 if ( font.GetEncoding() != wxFONTENCODING_SYSTEM )
2575 {
2576 // the standard control ignores the font encoding/charset, at least
2577 // with recent comctl32.dll versions (5 and 6, it uses to work with
2578 // 4.something) so we have to draw the item entirely ourselves in
2579 // this case
2580 HandleItemPaint(pLVCD, GetHfontOf(font));
2581 return CDRF_SKIPDEFAULT;
2582 }
2583
2584 ::SelectObject(pLVCD->nmcd.hdc, GetHfontOf(font));
2585
2586 return CDRF_NEWFONT;
2587 }
2588
2589 return CDRF_DODEFAULT;
2590 }
2591
2592 WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
2593 {
2594 LPNMLVCUSTOMDRAW pLVCD = (LPNMLVCUSTOMDRAW)lParam;
2595 NMCUSTOMDRAW& nmcd = pLVCD->nmcd;
2596 switch ( nmcd.dwDrawStage )
2597 {
2598 case CDDS_PREPAINT:
2599 // if we've got any items with non standard attributes,
2600 // notify us before painting each item
2601 //
2602 // for virtual controls, always suppose that we have attributes as
2603 // there is no way to check for this
2604 if ( IsVirtual() || m_hasAnyAttr )
2605 return CDRF_NOTIFYITEMDRAW;
2606 break;
2607
2608 case CDDS_ITEMPREPAINT:
2609 const int item = nmcd.dwItemSpec;
2610
2611 // we get this message with item == 0 for an empty control, we
2612 // must ignore it as calling OnGetItemAttr() would be wrong
2613 if ( item < 0 || item >= GetItemCount() )
2614 break;
2615
2616 return HandleItemPrepaint(this, pLVCD, DoGetItemAttr(item));
2617 }
2618
2619 return CDRF_DODEFAULT;
2620 }
2621
2622 #endif // NM_CUSTOMDRAW supported
2623
2624 // Necessary for drawing hrules and vrules, if specified
2625 void wxListCtrl::OnPaint(wxPaintEvent& event)
2626 {
2627 bool drawHRules = HasFlag(wxLC_HRULES);
2628 bool drawVRules = HasFlag(wxLC_VRULES);
2629
2630 if (!InReportView() || !drawHRules && !drawVRules)
2631 {
2632 event.Skip();
2633 return;
2634 }
2635
2636 wxPaintDC dc(this);
2637
2638 wxControl::OnPaint(event);
2639
2640 // Reset the device origin since it may have been set
2641 dc.SetDeviceOrigin(0, 0);
2642
2643 wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
2644 dc.SetPen(pen);
2645 dc.SetBrush(* wxTRANSPARENT_BRUSH);
2646
2647 wxSize clientSize = GetClientSize();
2648 wxRect itemRect;
2649
2650 int itemCount = GetItemCount();
2651 int i;
2652 if (drawHRules)
2653 {
2654 long top = GetTopItem();
2655 for (i = top; i < top + GetCountPerPage() + 1; i++)
2656 {
2657 if (GetItemRect(i, itemRect))
2658 {
2659 int cy = itemRect.GetTop();
2660 if (i != 0) // Don't draw the first one
2661 {
2662 dc.DrawLine(0, cy, clientSize.x, cy);
2663 }
2664 // Draw last line
2665 if (i == itemCount - 1)
2666 {
2667 cy = itemRect.GetBottom();
2668 dc.DrawLine(0, cy, clientSize.x, cy);
2669 }
2670 }
2671 }
2672 }
2673 i = itemCount - 1;
2674 if (drawVRules && (i > -1))
2675 {
2676 wxRect firstItemRect;
2677 GetItemRect(0, firstItemRect);
2678
2679 if (GetItemRect(i, itemRect))
2680 {
2681 // this is a fix for bug 673394: erase the pixels which we would
2682 // otherwise leave on the screen
2683 static const int gap = 2;
2684 dc.SetPen(*wxTRANSPARENT_PEN);
2685 dc.SetBrush(wxBrush(GetBackgroundColour()));
2686 dc.DrawRectangle(0, firstItemRect.GetY() - gap,
2687 clientSize.GetWidth(), gap);
2688
2689 dc.SetPen(pen);
2690 dc.SetBrush(*wxTRANSPARENT_BRUSH);
2691 int x = itemRect.GetX();
2692 for (int col = 0; col < GetColumnCount(); col++)
2693 {
2694 int colWidth = GetColumnWidth(col);
2695 x += colWidth ;
2696 dc.DrawLine(x-1, firstItemRect.GetY() - gap,
2697 x-1, itemRect.GetBottom());
2698 }
2699 }
2700 }
2701 }
2702
2703 WXLRESULT
2704 wxListCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
2705 {
2706 switch ( nMsg )
2707 {
2708 #ifdef WM_PRINT
2709 case WM_PRINT:
2710 // we should bypass our own WM_PRINT handling as we don't handle
2711 // PRF_CHILDREN flag, so leave it to the native control itself
2712 return MSWDefWindowProc(nMsg, wParam, lParam);
2713 #endif // WM_PRINT
2714
2715 case WM_CONTEXTMENU:
2716 // because this message is propagated upwards the child-parent
2717 // chain, we get it for the right clicks on the header window but
2718 // this is confusing in wx as right clicking there already
2719 // generates a separate wxEVT_COMMAND_LIST_COL_RIGHT_CLICK event
2720 // so just ignore them
2721 if ( (HWND)wParam == ListView_GetHeader(GetHwnd()) )
2722 return 0;
2723 //else: break
2724 }
2725
2726 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
2727 }
2728
2729 // ----------------------------------------------------------------------------
2730 // virtual list controls
2731 // ----------------------------------------------------------------------------
2732
2733 wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(col)) const
2734 {
2735 // this is a pure virtual function, in fact - which is not really pure
2736 // because the controls which are not virtual don't need to implement it
2737 wxFAIL_MSG( _T("wxListCtrl::OnGetItemText not supposed to be called") );
2738
2739 return wxEmptyString;
2740 }
2741
2742 int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
2743 {
2744 wxCHECK_MSG(!GetImageList(wxIMAGE_LIST_SMALL),
2745 -1,
2746 wxT("List control has an image list, OnGetItemImage or OnGetItemColumnImage should be overridden."));
2747 return -1;
2748 }
2749
2750 int wxListCtrl::OnGetItemColumnImage(long item, long column) const
2751 {
2752 if (!column)
2753 return OnGetItemImage(item);
2754
2755 return -1;
2756 }
2757
2758 wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
2759 {
2760 wxASSERT_MSG( item >= 0 && item < GetItemCount(),
2761 _T("invalid item index in OnGetItemAttr()") );
2762
2763 // no attributes by default
2764 return NULL;
2765 }
2766
2767 wxListItemAttr *wxListCtrl::DoGetItemAttr(long item) const
2768 {
2769 return IsVirtual() ? OnGetItemAttr(item)
2770 : wxGetInternalDataAttr(this, item);
2771 }
2772
2773 void wxListCtrl::SetItemCount(long count)
2774 {
2775 wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
2776
2777 if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count,
2778 LVSICF_NOSCROLL | LVSICF_NOINVALIDATEALL) )
2779 {
2780 wxLogLastError(_T("ListView_SetItemCount"));
2781 }
2782 m_count = count;
2783 wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
2784 wxT("m_count should match ListView_GetItemCount"));
2785 }
2786
2787 void wxListCtrl::RefreshItem(long item)
2788 {
2789 // strangely enough, ListView_Update() results in much more flicker here
2790 // than a dumb Refresh() -- why?
2791 #if 0
2792 if ( !ListView_Update(GetHwnd(), item) )
2793 {
2794 wxLogLastError(_T("ListView_Update"));
2795 }
2796 #else // 1
2797 wxRect rect;
2798 GetItemRect(item, rect);
2799 RefreshRect(rect);
2800 #endif // 0/1
2801 }
2802
2803 void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
2804 {
2805 wxRect rect1, rect2;
2806 GetItemRect(itemFrom, rect1);
2807 GetItemRect(itemTo, rect2);
2808
2809 wxRect rect = rect1;
2810 rect.height = rect2.GetBottom() - rect1.GetTop();
2811
2812 RefreshRect(rect);
2813 }
2814
2815 // ----------------------------------------------------------------------------
2816 // internal data stuff
2817 // ----------------------------------------------------------------------------
2818
2819 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId)
2820 {
2821 LV_ITEM it;
2822 it.mask = LVIF_PARAM;
2823 it.iItem = itemId;
2824
2825 if ( !ListView_GetItem(hwnd, &it) )
2826 return NULL;
2827
2828 return (wxListItemInternalData *) it.lParam;
2829 }
2830
2831 static
2832 wxListItemInternalData *wxGetInternalData(const wxListCtrl *ctl, long itemId)
2833 {
2834 return wxGetInternalData(GetHwndOf(ctl), itemId);
2835 }
2836
2837 static
2838 wxListItemAttr *wxGetInternalDataAttr(const wxListCtrl *ctl, long itemId)
2839 {
2840 wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
2841
2842 return data ? data->attr : NULL;
2843 }
2844
2845 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId)
2846 {
2847 wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
2848 if (data)
2849 {
2850 LV_ITEM item;
2851 memset(&item, 0, sizeof(item));
2852 item.iItem = itemId;
2853 item.mask = LVIF_PARAM;
2854 item.lParam = (LPARAM) 0;
2855 ListView_SetItem((HWND)ctl->GetHWND(), &item);
2856 delete data;
2857 }
2858 }
2859
2860 // ----------------------------------------------------------------------------
2861 // wxWin <-> MSW items conversions
2862 // ----------------------------------------------------------------------------
2863
2864 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
2865 wxListItem& info,
2866 LV_ITEM& lvItem)
2867 {
2868 wxListItemInternalData *internaldata =
2869 (wxListItemInternalData *) lvItem.lParam;
2870
2871 if (internaldata)
2872 info.m_data = internaldata->lParam;
2873
2874 info.m_mask = 0;
2875 info.m_state = 0;
2876 info.m_stateMask = 0;
2877 info.m_itemId = lvItem.iItem;
2878
2879 long oldMask = lvItem.mask;
2880
2881 bool needText = false;
2882 if (hwndListCtrl != 0)
2883 {
2884 if ( lvItem.mask & LVIF_TEXT )
2885 needText = false;
2886 else
2887 needText = true;
2888
2889 if ( needText )
2890 {
2891 lvItem.pszText = new wxChar[513];
2892 lvItem.cchTextMax = 512;
2893 }
2894 lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
2895 ::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
2896 }
2897
2898 if ( lvItem.mask & LVIF_STATE )
2899 {
2900 info.m_mask |= wxLIST_MASK_STATE;
2901
2902 if ( lvItem.stateMask & LVIS_CUT)
2903 {
2904 info.m_stateMask |= wxLIST_STATE_CUT;
2905 if ( lvItem.state & LVIS_CUT )
2906 info.m_state |= wxLIST_STATE_CUT;
2907 }
2908 if ( lvItem.stateMask & LVIS_DROPHILITED)
2909 {
2910 info.m_stateMask |= wxLIST_STATE_DROPHILITED;
2911 if ( lvItem.state & LVIS_DROPHILITED )
2912 info.m_state |= wxLIST_STATE_DROPHILITED;
2913 }
2914 if ( lvItem.stateMask & LVIS_FOCUSED)
2915 {
2916 info.m_stateMask |= wxLIST_STATE_FOCUSED;
2917 if ( lvItem.state & LVIS_FOCUSED )
2918 info.m_state |= wxLIST_STATE_FOCUSED;
2919 }
2920 if ( lvItem.stateMask & LVIS_SELECTED)
2921 {
2922 info.m_stateMask |= wxLIST_STATE_SELECTED;
2923 if ( lvItem.state & LVIS_SELECTED )
2924 info.m_state |= wxLIST_STATE_SELECTED;
2925 }
2926 }
2927
2928 if ( lvItem.mask & LVIF_TEXT )
2929 {
2930 info.m_mask |= wxLIST_MASK_TEXT;
2931 info.m_text = lvItem.pszText;
2932 }
2933 if ( lvItem.mask & LVIF_IMAGE )
2934 {
2935 info.m_mask |= wxLIST_MASK_IMAGE;
2936 info.m_image = lvItem.iImage;
2937 }
2938 if ( lvItem.mask & LVIF_PARAM )
2939 info.m_mask |= wxLIST_MASK_DATA;
2940 if ( lvItem.mask & LVIF_DI_SETITEM )
2941 info.m_mask |= wxLIST_SET_ITEM;
2942 info.m_col = lvItem.iSubItem;
2943
2944 if (needText)
2945 {
2946 if (lvItem.pszText)
2947 delete[] lvItem.pszText;
2948 }
2949 lvItem.mask = oldMask;
2950 }
2951
2952 static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
2953 {
2954 if (stateMask & wxLIST_STATE_CUT)
2955 {
2956 lvItem.stateMask |= LVIS_CUT;
2957 if (state & wxLIST_STATE_CUT)
2958 lvItem.state |= LVIS_CUT;
2959 }
2960 if (stateMask & wxLIST_STATE_DROPHILITED)
2961 {
2962 lvItem.stateMask |= LVIS_DROPHILITED;
2963 if (state & wxLIST_STATE_DROPHILITED)
2964 lvItem.state |= LVIS_DROPHILITED;
2965 }
2966 if (stateMask & wxLIST_STATE_FOCUSED)
2967 {
2968 lvItem.stateMask |= LVIS_FOCUSED;
2969 if (state & wxLIST_STATE_FOCUSED)
2970 lvItem.state |= LVIS_FOCUSED;
2971 }
2972 if (stateMask & wxLIST_STATE_SELECTED)
2973 {
2974 lvItem.stateMask |= LVIS_SELECTED;
2975 if (state & wxLIST_STATE_SELECTED)
2976 lvItem.state |= LVIS_SELECTED;
2977 }
2978 }
2979
2980 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
2981 const wxListItem& info,
2982 LV_ITEM& lvItem)
2983 {
2984 lvItem.iItem = (int) info.m_itemId;
2985
2986 lvItem.iImage = info.m_image;
2987 lvItem.stateMask = 0;
2988 lvItem.state = 0;
2989 lvItem.mask = 0;
2990 lvItem.iSubItem = info.m_col;
2991
2992 if (info.m_mask & wxLIST_MASK_STATE)
2993 {
2994 lvItem.mask |= LVIF_STATE;
2995
2996 wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
2997 }
2998
2999 if (info.m_mask & wxLIST_MASK_TEXT)
3000 {
3001 lvItem.mask |= LVIF_TEXT;
3002 if ( ctrl->HasFlag(wxLC_USER_TEXT) )
3003 {
3004 lvItem.pszText = LPSTR_TEXTCALLBACK;
3005 }
3006 else
3007 {
3008 // pszText is not const, hence the cast
3009 lvItem.pszText = (wxChar *)info.m_text.c_str();
3010 if ( lvItem.pszText )
3011 lvItem.cchTextMax = info.m_text.length();
3012 else
3013 lvItem.cchTextMax = 0;
3014 }
3015 }
3016 if (info.m_mask & wxLIST_MASK_IMAGE)
3017 lvItem.mask |= LVIF_IMAGE;
3018 }
3019
3020 static void wxConvertToMSWListCol(HWND hwndList,
3021 int col,
3022 const wxListItem& item,
3023 LV_COLUMN& lvCol)
3024 {
3025 wxZeroMemory(lvCol);
3026
3027 if ( item.m_mask & wxLIST_MASK_TEXT )
3028 {
3029 lvCol.mask |= LVCF_TEXT;
3030 lvCol.pszText = (wxChar *)item.m_text.c_str(); // cast is safe
3031 }
3032
3033 if ( item.m_mask & wxLIST_MASK_FORMAT )
3034 {
3035 lvCol.mask |= LVCF_FMT;
3036
3037 if ( item.m_format == wxLIST_FORMAT_LEFT )
3038 lvCol.fmt = LVCFMT_LEFT;
3039 else if ( item.m_format == wxLIST_FORMAT_RIGHT )
3040 lvCol.fmt = LVCFMT_RIGHT;
3041 else if ( item.m_format == wxLIST_FORMAT_CENTRE )
3042 lvCol.fmt = LVCFMT_CENTER;
3043 }
3044
3045 if ( item.m_mask & wxLIST_MASK_WIDTH )
3046 {
3047 lvCol.mask |= LVCF_WIDTH;
3048 if ( item.m_width == wxLIST_AUTOSIZE)
3049 lvCol.cx = LVSCW_AUTOSIZE;
3050 else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
3051 lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
3052 else
3053 lvCol.cx = item.m_width;
3054 }
3055
3056 // see comment at the end of wxListCtrl::GetColumn()
3057 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
3058 if ( item.m_mask & wxLIST_MASK_IMAGE )
3059 {
3060 if ( wxApp::GetComCtl32Version() >= 470 )
3061 {
3062 lvCol.mask |= LVCF_IMAGE;
3063
3064 // we use LVCFMT_BITMAP_ON_RIGHT because the images on the right
3065 // seem to be generally nicer than on the left and the generic
3066 // version only draws them on the right (we don't have a flag to
3067 // specify the image location anyhow)
3068 //
3069 // we don't use LVCFMT_COL_HAS_IMAGES because it doesn't seem to
3070 // make any difference in my tests -- but maybe we should?
3071 if ( item.m_image != -1 )
3072 {
3073 // as we're going to overwrite the format field, get its
3074 // current value first -- unless we want to overwrite it anyhow
3075 if ( !(lvCol.mask & LVCF_FMT) )
3076 {
3077 LV_COLUMN lvColOld;
3078 wxZeroMemory(lvColOld);
3079 lvColOld.mask = LVCF_FMT;
3080 if ( ListView_GetColumn(hwndList, col, &lvColOld) )
3081 {
3082 lvCol.fmt = lvColOld.fmt;
3083 }
3084
3085 lvCol.mask |= LVCF_FMT;
3086 }
3087
3088 lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT | LVCFMT_IMAGE;
3089 }
3090
3091 lvCol.iImage = item.m_image;
3092 }
3093 //else: it doesn't support item images anyhow
3094 }
3095 #endif // _WIN32_IE >= 0x0300
3096 }
3097
3098 #endif // wxUSE_LISTCTRL
wxWidgets (Impactor)