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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 and Markus Holzem
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #ifdef __GNUG__
21 #pragma implementation "listctrl.h"
22 #pragma implementation "listctrlbase.h"
23 #endif
24
25 // For compilers that support precompilation, includes "wx.h".
26 #include "wx/wxprec.h"
27
28 #ifdef __BORLANDC__
29 #pragma hdrstop
30 #endif
31
32 #if wxUSE_LISTCTRL && defined(__WIN95__)
33
34 #ifndef WX_PRECOMP
35 #include "wx/app.h"
36 #include "wx/intl.h"
37 #include "wx/log.h"
38 #include "wx/settings.h"
39 #endif
40
41 #include "wx/textctrl.h"
42 #include "wx/imaglist.h"
43 #include "wx/listctrl.h"
44 #include "wx/dcclient.h"
45
46 #include "wx/msw/private.h"
47
48 #if ((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
49 #include "wx/msw/gnuwin32/extra.h"
50 #else
51 #include <commctrl.h>
52 #endif
53
54 #ifndef LVHT_ONITEM
55 #define LVHT_ONITEM \
56 (LVHT_ONITEMICON | LVHT_ONITEMLABEL | LVHT_ONITEMSTATEICON)
57 #endif
58
59 #ifndef LVM_SETEXTENDEDLISTVIEWSTYLE
60 #define LVM_SETEXTENDEDLISTVIEWSTYLE (0x1000 + 54)
61 #endif
62
63 #ifndef LVS_EX_FULLROWSELECT
64 #define LVS_EX_FULLROWSELECT 0x00000020
65 #endif
66
67 #ifndef LVS_OWNERDATA
68 #define LVS_OWNERDATA 0x1000
69 #endif
70
71 // mingw32/cygwin don't have declarations for comctl32.dll 4.70+ stuff
72 #ifndef NM_CACHEHINT
73 typedef struct tagNMLVCACHEHINT
74 {
75 NMHDR hdr;
76 int iFrom;
77 int iTo;
78 } NMLVCACHEHINT;
79
80 #define NM_CACHEHINT NMLVCACHEHINT
81 #endif
82
83 #ifndef LVN_ODCACHEHINT
84 #define LVN_ODCACHEHINT (-113)
85 #endif
86
87 #ifndef ListView_GetHeader
88 #define ListView_GetHeader(w) (HWND)SendMessage((w),LVM_GETHEADER,0,0)
89 #endif
90
91 #ifndef LVM_GETHEADER
92 #define LVM_GETHEADER (LVM_FIRST+31)
93 #endif
94
95 #ifndef Header_GetItemRect
96 #define Header_GetItemRect(w,i,r) \
97 (BOOL)SendMessage((w),HDM_GETITEMRECT,(WPARAM)(i),(LPARAM)(r))
98 #endif
99
100 #ifndef HDM_GETITEMRECT
101 #define HDM_GETITEMRECT (HDM_FIRST+7)
102 #endif
103
104 #ifndef LVCF_IMAGE
105 #define LVCF_IMAGE 0x0010
106 #endif
107
108 #ifndef LVCFMT_BITMAP_ON_RIGHT
109 #define LVCFMT_BITMAP_ON_RIGHT 0x1000
110 #endif
111
112 // ----------------------------------------------------------------------------
113 // private functions
114 // ----------------------------------------------------------------------------
115
116 // convert our state and mask flags to LV_ITEM constants
117 static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
118
119 // convert wxListItem to LV_ITEM
120 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
121 const wxListItem& info, LV_ITEM& lvItem);
122
123 // convert LV_ITEM to wxListItem
124 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
125 wxListItem& info,
126 /* const */ LV_ITEM& lvItem);
127
128 // convert our wxListItem to LV_COLUMN
129 static void wxConvertToMSWListCol(int col, const wxListItem& item,
130 LV_COLUMN& lvCol);
131
132 // ----------------------------------------------------------------------------
133 // events
134 // ----------------------------------------------------------------------------
135
136 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_DRAG)
137 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_RDRAG)
138 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT)
139 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_END_LABEL_EDIT)
140 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ITEM)
141 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS)
142 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_GET_INFO)
143 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_SET_INFO)
144 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_SELECTED)
145 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_DESELECTED)
146 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_KEY_DOWN)
147 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_INSERT_ITEM)
148 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_CLICK)
149 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_RIGHT_CLICK)
150 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_BEGIN_DRAG)
151 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_DRAGGING)
152 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_END_DRAG)
153 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK)
154 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK)
155 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_ACTIVATED)
156 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_FOCUSED)
157 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_CACHE_HINT)
158
159 IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
160 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
161 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
162
163 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
164
165 BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
166 EVT_PAINT(wxListCtrl::OnPaint)
167 END_EVENT_TABLE()
168
169 // ============================================================================
170 // implementation
171 // ============================================================================
172
173 // ----------------------------------------------------------------------------
174 // wxListCtrl construction
175 // ----------------------------------------------------------------------------
176
177 void wxListCtrl::Init()
178 {
179 m_imageListNormal = NULL;
180 m_imageListSmall = NULL;
181 m_imageListState = NULL;
182 m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = FALSE;
183 m_baseStyle = 0;
184 m_colCount = 0;
185 m_textCtrl = NULL;
186 m_hasAnyAttr = FALSE;
187 }
188
189 bool wxListCtrl::Create(wxWindow *parent,
190 wxWindowID id,
191 const wxPoint& pos,
192 const wxSize& size,
193 long style,
194 const wxValidator& validator,
195 const wxString& name)
196 {
197 #if wxUSE_VALIDATORS
198 SetValidator(validator);
199 #endif // wxUSE_VALIDATORS
200
201 SetName(name);
202
203 int x = pos.x;
204 int y = pos.y;
205 int width = size.x;
206 int height = size.y;
207
208 m_windowStyle = style;
209
210 SetParent(parent);
211
212 if (width <= 0)
213 width = 100;
214 if (height <= 0)
215 height = 30;
216 if (x < 0)
217 x = 0;
218 if (y < 0)
219 y = 0;
220
221 m_windowId = (id == -1) ? NewControlId() : id;
222
223 DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
224 LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
225
226 if ( m_windowStyle & wxCLIP_SIBLINGS )
227 wstyle |= WS_CLIPSIBLINGS;
228
229 if ( wxStyleHasBorder(m_windowStyle) )
230 wstyle |= WS_BORDER;
231 m_baseStyle = wstyle;
232
233 if ( !DoCreateControl(x, y, width, height) )
234 return FALSE;
235
236 if (parent)
237 parent->AddChild(this);
238
239 return TRUE;
240 }
241
242 bool wxListCtrl::DoCreateControl(int x, int y, int w, int h)
243 {
244 DWORD wstyle = m_baseStyle;
245
246 bool want3D;
247 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
248
249 // Even with extended styles, need to combine with WS_BORDER
250 // for them to look right.
251 if ( want3D )
252 wstyle |= WS_BORDER;
253
254 long oldStyle = 0; // Dummy
255 wstyle |= ConvertToMSWStyle(oldStyle, m_windowStyle);
256
257 // Create the ListView control.
258 m_hWnd = (WXHWND)CreateWindowEx(exStyle,
259 WC_LISTVIEW,
260 wxT(""),
261 wstyle,
262 x, y, w, h,
263 GetWinHwnd(GetParent()),
264 (HMENU)m_windowId,
265 wxGetInstance(),
266 NULL);
267
268 if ( !m_hWnd )
269 {
270 wxLogError(_("Can't create list control window, check that comctl32.dll is installed."));
271
272 return FALSE;
273 }
274
275 // for comctl32.dll v 4.70+ we want to have this attribute because it's
276 // prettier (and also because wxGTK does it like this)
277 if ( (wstyle & LVS_REPORT) && wxTheApp->GetComCtl32Version() >= 470 )
278 {
279 ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE,
280 0, LVS_EX_FULLROWSELECT);
281 }
282
283 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
284 SetForegroundColour(GetParent()->GetForegroundColour());
285
286 SubclassWin(m_hWnd);
287
288 return TRUE;
289 }
290
291 void wxListCtrl::UpdateStyle()
292 {
293 if ( GetHWND() )
294 {
295 // The new window view style
296 long dummy;
297 DWORD dwStyleNew = ConvertToMSWStyle(dummy, m_windowStyle);
298 dwStyleNew |= m_baseStyle;
299
300 // Get the current window style.
301 DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
302
303 // Only set the window style if the view bits have changed.
304 if ( dwStyleOld != dwStyleNew )
305 {
306 ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
307 }
308 }
309 }
310
311 void wxListCtrl::FreeAllAttrs(bool dontRecreate)
312 {
313 if ( m_hasAnyAttr )
314 {
315 for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() )
316 {
317 delete (wxListItemAttr *)node->Data();
318 }
319
320 m_attrs.Destroy();
321 if ( !dontRecreate )
322 {
323 m_attrs.Create(wxKEY_INTEGER, 1000); // just as def ctor
324 }
325
326 m_hasAnyAttr = FALSE;
327 }
328 }
329
330 wxListCtrl::~wxListCtrl()
331 {
332 FreeAllAttrs(TRUE /* no need to recreate hash any more */);
333
334 if ( m_textCtrl )
335 {
336 m_textCtrl->SetHWND(0);
337 m_textCtrl->UnsubclassWin();
338 delete m_textCtrl;
339 m_textCtrl = NULL;
340 }
341
342 if (m_ownsImageListNormal) delete m_imageListNormal;
343 if (m_ownsImageListSmall) delete m_imageListSmall;
344 if (m_ownsImageListState) delete m_imageListState;
345 }
346
347 // ----------------------------------------------------------------------------
348 // set/get/change style
349 // ----------------------------------------------------------------------------
350
351 // Add or remove a single window style
352 void wxListCtrl::SetSingleStyle(long style, bool add)
353 {
354 long flag = GetWindowStyleFlag();
355
356 // Get rid of conflicting styles
357 if ( add )
358 {
359 if ( style & wxLC_MASK_TYPE)
360 flag = flag & ~wxLC_MASK_TYPE;
361 if ( style & wxLC_MASK_ALIGN )
362 flag = flag & ~wxLC_MASK_ALIGN;
363 if ( style & wxLC_MASK_SORT )
364 flag = flag & ~wxLC_MASK_SORT;
365 }
366
367 if ( flag & style )
368 {
369 if ( !add )
370 flag -= style;
371 }
372 else
373 {
374 if ( add )
375 {
376 flag |= style;
377 }
378 }
379
380 m_windowStyle = flag;
381
382 UpdateStyle();
383 }
384
385 // Set the whole window style
386 void wxListCtrl::SetWindowStyleFlag(long flag)
387 {
388 m_windowStyle = flag;
389
390 UpdateStyle();
391 }
392
393 // Can be just a single style, or a bitlist
394 long wxListCtrl::ConvertToMSWStyle(long& oldStyle, long style) const
395 {
396 long wstyle = 0;
397 if ( style & wxLC_ICON )
398 {
399 if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
400 oldStyle -= LVS_SMALLICON;
401 if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
402 oldStyle -= LVS_REPORT;
403 if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
404 oldStyle -= LVS_LIST;
405 wstyle |= LVS_ICON;
406 }
407
408 if ( style & wxLC_SMALL_ICON )
409 {
410 if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
411 oldStyle -= LVS_ICON;
412 if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
413 oldStyle -= LVS_REPORT;
414 if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
415 oldStyle -= LVS_LIST;
416 wstyle |= LVS_SMALLICON;
417 }
418
419 if ( style & wxLC_LIST )
420 {
421 if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
422 oldStyle -= LVS_ICON;
423 if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
424 oldStyle -= LVS_REPORT;
425 if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
426 oldStyle -= LVS_SMALLICON;
427 wstyle |= LVS_LIST;
428 }
429
430 if ( style & wxLC_REPORT )
431 {
432 if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
433 oldStyle -= LVS_ICON;
434 if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
435 oldStyle -= LVS_LIST;
436 if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
437 oldStyle -= LVS_SMALLICON;
438
439 wstyle |= LVS_REPORT;
440 }
441
442 if ( style & wxLC_ALIGN_LEFT )
443 {
444 if ( oldStyle & LVS_ALIGNTOP )
445 oldStyle -= LVS_ALIGNTOP;
446 wstyle |= LVS_ALIGNLEFT;
447 }
448
449 if ( style & wxLC_ALIGN_TOP )
450 {
451 if ( oldStyle & LVS_ALIGNLEFT )
452 oldStyle -= LVS_ALIGNLEFT;
453 wstyle |= LVS_ALIGNTOP;
454 }
455
456 if ( style & wxLC_AUTOARRANGE )
457 wstyle |= LVS_AUTOARRANGE;
458
459 if ( style & wxLC_NO_SORT_HEADER )
460 wstyle |= LVS_NOSORTHEADER;
461
462 if ( style & wxLC_NO_HEADER )
463 wstyle |= LVS_NOCOLUMNHEADER;
464
465 if ( style & wxLC_EDIT_LABELS )
466 wstyle |= LVS_EDITLABELS;
467
468 if ( style & wxLC_SINGLE_SEL )
469 wstyle |= LVS_SINGLESEL;
470
471 if ( style & wxLC_SORT_ASCENDING )
472 {
473 if ( oldStyle & LVS_SORTDESCENDING )
474 oldStyle -= LVS_SORTDESCENDING;
475 wstyle |= LVS_SORTASCENDING;
476 }
477
478 if ( style & wxLC_SORT_DESCENDING )
479 {
480 if ( oldStyle & LVS_SORTASCENDING )
481 oldStyle -= LVS_SORTASCENDING;
482 wstyle |= LVS_SORTDESCENDING;
483 }
484
485 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
486 if ( style & wxLC_VIRTUAL )
487 {
488 int ver = wxTheApp->GetComCtl32Version();
489 if ( ver < 470 )
490 {
491 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."),
492 ver / 100, ver % 100);
493 }
494
495 wstyle |= LVS_OWNERDATA;
496 }
497 #endif
498
499 return wstyle;
500 }
501
502 // ----------------------------------------------------------------------------
503 // accessors
504 // ----------------------------------------------------------------------------
505
506 // Sets the foreground, i.e. text, colour
507 bool wxListCtrl::SetForegroundColour(const wxColour& col)
508 {
509 if ( !wxWindow::SetForegroundColour(col) )
510 return FALSE;
511
512 ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
513
514 return TRUE;
515 }
516
517 // Sets the background colour
518 bool wxListCtrl::SetBackgroundColour(const wxColour& col)
519 {
520 if ( !wxWindow::SetBackgroundColour(col) )
521 return FALSE;
522
523 // we set the same colour for both the "empty" background and the items
524 // background
525 COLORREF color = wxColourToRGB(col);
526 ListView_SetBkColor(GetHwnd(), color);
527 ListView_SetTextBkColor(GetHwnd(), color);
528
529 return TRUE;
530 }
531
532 // Gets information about this column
533 bool wxListCtrl::GetColumn(int col, wxListItem& item) const
534 {
535 LV_COLUMN lvCol;
536 wxZeroMemory(lvCol);
537
538 if ( item.m_mask & wxLIST_MASK_TEXT )
539 {
540 lvCol.mask |= LVCF_TEXT;
541 lvCol.pszText = new wxChar[513];
542 lvCol.cchTextMax = 512;
543 }
544
545 bool success = ListView_GetColumn(GetHwnd(), col, & lvCol) != 0;
546
547 // item.m_subItem = lvCol.iSubItem;
548 item.m_width = lvCol.cx;
549
550 if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
551 {
552 item.m_text = lvCol.pszText;
553 delete[] lvCol.pszText;
554 }
555
556 if ( item.m_mask & wxLIST_MASK_FORMAT )
557 {
558 if (lvCol.fmt == LVCFMT_LEFT)
559 item.m_format = wxLIST_FORMAT_LEFT;
560 else if (lvCol.fmt == LVCFMT_RIGHT)
561 item.m_format = wxLIST_FORMAT_RIGHT;
562 else if (lvCol.fmt == LVCFMT_CENTER)
563 item.m_format = wxLIST_FORMAT_CENTRE;
564 }
565
566 return success;
567 }
568
569 // Sets information about this column
570 bool wxListCtrl::SetColumn(int col, wxListItem& item)
571 {
572 LV_COLUMN lvCol;
573 wxConvertToMSWListCol(col, item, lvCol);
574
575 return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
576 }
577
578 // Gets the column width
579 int wxListCtrl::GetColumnWidth(int col) const
580 {
581 return ListView_GetColumnWidth(GetHwnd(), col);
582 }
583
584 // Sets the column width
585 bool wxListCtrl::SetColumnWidth(int col, int width)
586 {
587 int col2 = col;
588 if ( m_windowStyle & wxLC_LIST )
589 col2 = -1;
590
591 int width2 = width;
592 if ( width2 == wxLIST_AUTOSIZE)
593 width2 = LVSCW_AUTOSIZE;
594 else if ( width2 == wxLIST_AUTOSIZE_USEHEADER)
595 width2 = LVSCW_AUTOSIZE_USEHEADER;
596
597 return ListView_SetColumnWidth(GetHwnd(), col2, width2) != 0;
598 }
599
600 // Gets the number of items that can fit vertically in the
601 // visible area of the list control (list or report view)
602 // or the total number of items in the list control (icon
603 // or small icon view)
604 int wxListCtrl::GetCountPerPage() const
605 {
606 return ListView_GetCountPerPage(GetHwnd());
607 }
608
609 // Gets the edit control for editing labels.
610 wxTextCtrl* wxListCtrl::GetEditControl() const
611 {
612 return m_textCtrl;
613 }
614
615 // Gets information about the item
616 bool wxListCtrl::GetItem(wxListItem& info) const
617 {
618 LV_ITEM lvItem;
619 wxZeroMemory(lvItem);
620
621 lvItem.iItem = info.m_itemId;
622 lvItem.iSubItem = info.m_col;
623
624 if ( info.m_mask & wxLIST_MASK_TEXT )
625 {
626 lvItem.mask |= LVIF_TEXT;
627 lvItem.pszText = new wxChar[513];
628 lvItem.cchTextMax = 512;
629 }
630 else
631 {
632 lvItem.pszText = NULL;
633 }
634
635 if (info.m_mask & wxLIST_MASK_DATA)
636 lvItem.mask |= LVIF_PARAM;
637
638 if (info.m_mask & wxLIST_MASK_IMAGE)
639 lvItem.mask |= LVIF_IMAGE;
640
641 if ( info.m_mask & wxLIST_MASK_STATE )
642 {
643 lvItem.mask |= LVIF_STATE;
644 // the other bits are hardly interesting anyhow
645 lvItem.stateMask = LVIS_SELECTED | LVIS_FOCUSED;
646 }
647
648 bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
649 if ( !success )
650 {
651 wxLogError(_("Couldn't retrieve information about list control item %d."),
652 lvItem.iItem);
653 }
654 else
655 {
656 // give NULL as hwnd as we already have everything we need
657 wxConvertFromMSWListItem(NULL, info, lvItem);
658 }
659
660 if (lvItem.pszText)
661 delete[] lvItem.pszText;
662
663 return success;
664 }
665
666 // Sets information about the item
667 bool wxListCtrl::SetItem(wxListItem& info)
668 {
669 LV_ITEM item;
670 wxConvertToMSWListItem(this, info, item);
671
672 // we could be changing only the attribute in which case we don't need to
673 // call ListView_SetItem() at all
674 if ( item.mask )
675 {
676 item.cchTextMax = 0;
677 if ( !ListView_SetItem(GetHwnd(), &item) )
678 {
679 wxLogDebug(_T("ListView_SetItem() failed"));
680
681 return FALSE;
682 }
683 }
684
685 // we need to update the item immediately to show the new image
686 bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
687
688 // check whether it has any custom attributes
689 if ( info.HasAttributes() )
690 {
691 wxListItemAttr *attr = (wxListItemAttr *)m_attrs.Get(item.iItem);
692
693 if ( attr == NULL )
694 m_attrs.Put(item.iItem, (wxObject *)new wxListItemAttr(*info.GetAttributes()));
695 else
696 *attr = *info.GetAttributes();
697
698 m_hasAnyAttr = TRUE;
699
700 // if the colour has changed, we must redraw the item
701 updateNow = TRUE;
702 }
703
704 if ( updateNow )
705 {
706 // we need this to make the change visible right now
707 RefreshItem(item.iItem);
708 }
709
710 return TRUE;
711 }
712
713 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
714 {
715 wxListItem info;
716 info.m_text = label;
717 info.m_mask = wxLIST_MASK_TEXT;
718 info.m_itemId = index;
719 info.m_col = col;
720 if ( imageId > -1 )
721 {
722 info.m_image = imageId;
723 info.m_mask |= wxLIST_MASK_IMAGE;
724 }
725 return SetItem(info);
726 }
727
728
729 // Gets the item state
730 int wxListCtrl::GetItemState(long item, long stateMask) const
731 {
732 wxListItem info;
733
734 info.m_mask = wxLIST_MASK_STATE;
735 info.m_stateMask = stateMask;
736 info.m_itemId = item;
737
738 if (!GetItem(info))
739 return 0;
740
741 return info.m_state;
742 }
743
744 // Sets the item state
745 bool wxListCtrl::SetItemState(long item, long state, long stateMask)
746 {
747 // NB: don't use SetItem() here as it doesn't work with the virtual list
748 // controls
749 LV_ITEM lvItem;
750 wxZeroMemory(lvItem);
751
752 wxConvertToMSWFlags(state, stateMask, lvItem);
753
754 // for the virtual list controls we need to refresh the previously focused
755 // item manually when changing focus without changing selection
756 // programmatically because otherwise it keeps its focus rectangle until
757 // next repaint (yet another comctl32 bug)
758 long focusOld;
759 if ( IsVirtual() &&
760 (stateMask & wxLIST_STATE_FOCUSED) &&
761 (state & wxLIST_STATE_FOCUSED) )
762 {
763 focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
764 }
765 else
766 {
767 focusOld = -1;
768 }
769
770 if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
771 (WPARAM)item, (LPARAM)&lvItem) )
772 {
773 wxLogLastError(_T("ListView_SetItemState"));
774
775 return FALSE;
776 }
777
778 if ( focusOld != -1 )
779 {
780 // no need to refresh the item if it was previously selected, it would
781 // only result in annoying flicker
782 if ( !(GetItemState(focusOld,
783 wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
784 {
785 RefreshItem(focusOld);
786 }
787 }
788
789 return TRUE;
790 }
791
792 // Sets the item image
793 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
794 {
795 wxListItem info;
796
797 info.m_mask = wxLIST_MASK_IMAGE;
798 info.m_image = image;
799 info.m_itemId = item;
800
801 return SetItem(info);
802 }
803
804 // Gets the item text
805 wxString wxListCtrl::GetItemText(long item) const
806 {
807 wxListItem info;
808
809 info.m_mask = wxLIST_MASK_TEXT;
810 info.m_itemId = item;
811
812 if (!GetItem(info))
813 return wxString("");
814 return info.m_text;
815 }
816
817 // Sets the item text
818 void wxListCtrl::SetItemText(long item, const wxString& str)
819 {
820 wxListItem info;
821
822 info.m_mask = wxLIST_MASK_TEXT;
823 info.m_itemId = item;
824 info.m_text = str;
825
826 SetItem(info);
827 }
828
829 // Gets the item data
830 long wxListCtrl::GetItemData(long item) const
831 {
832 wxListItem info;
833
834 info.m_mask = wxLIST_MASK_DATA;
835 info.m_itemId = item;
836
837 if (!GetItem(info))
838 return 0;
839 return info.m_data;
840 }
841
842 // Sets the item data
843 bool wxListCtrl::SetItemData(long item, long data)
844 {
845 wxListItem info;
846
847 info.m_mask = wxLIST_MASK_DATA;
848 info.m_itemId = item;
849 info.m_data = data;
850
851 return SetItem(info);
852 }
853
854 // Gets the item rectangle
855 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
856 {
857 RECT rectWin;
858
859 int codeWin;
860 if ( code == wxLIST_RECT_BOUNDS )
861 codeWin = LVIR_BOUNDS;
862 else if ( code == wxLIST_RECT_ICON )
863 codeWin = LVIR_ICON;
864 else if ( code == wxLIST_RECT_LABEL )
865 codeWin = LVIR_LABEL;
866 else
867 {
868 wxFAIL_MSG( _T("incorrect code in GetItemRect()") );
869
870 codeWin = LVIR_BOUNDS;
871 }
872
873 #ifdef __WXWINE__
874 bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin ) != 0;
875 #else
876 bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
877 #endif
878
879 rect.x = rectWin.left;
880 rect.y = rectWin.top;
881 rect.width = rectWin.right - rectWin.left;
882 rect.height = rectWin.bottom - rectWin.top;
883
884 return success;
885 }
886
887 // Gets the item position
888 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
889 {
890 POINT pt;
891
892 bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
893
894 pos.x = pt.x; pos.y = pt.y;
895 return success;
896 }
897
898 // Sets the item position.
899 bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
900 {
901 return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
902 }
903
904 // Gets the number of items in the list control
905 int wxListCtrl::GetItemCount() const
906 {
907 return ListView_GetItemCount(GetHwnd());
908 }
909
910 // Retrieves the spacing between icons in pixels.
911 // If small is TRUE, gets the spacing for the small icon
912 // view, otherwise the large icon view.
913 int wxListCtrl::GetItemSpacing(bool isSmall) const
914 {
915 return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
916 }
917
918 // Gets the number of selected items in the list control
919 int wxListCtrl::GetSelectedItemCount() const
920 {
921 return ListView_GetSelectedCount(GetHwnd());
922 }
923
924 // Gets the text colour of the listview
925 wxColour wxListCtrl::GetTextColour() const
926 {
927 COLORREF ref = ListView_GetTextColor(GetHwnd());
928 wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
929 return col;
930 }
931
932 // Sets the text colour of the listview
933 void wxListCtrl::SetTextColour(const wxColour& col)
934 {
935 ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
936 }
937
938 // Gets the index of the topmost visible item when in
939 // list or report view
940 long wxListCtrl::GetTopItem() const
941 {
942 return (long) ListView_GetTopIndex(GetHwnd());
943 }
944
945 // Searches for an item, starting from 'item'.
946 // 'geometry' is one of
947 // wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
948 // 'state' is a state bit flag, one or more of
949 // wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
950 // item can be -1 to find the first item that matches the
951 // specified flags.
952 // Returns the item or -1 if unsuccessful.
953 long wxListCtrl::GetNextItem(long item, int geom, int state) const
954 {
955 long flags = 0;
956
957 if ( geom == wxLIST_NEXT_ABOVE )
958 flags |= LVNI_ABOVE;
959 if ( geom == wxLIST_NEXT_ALL )
960 flags |= LVNI_ALL;
961 if ( geom == wxLIST_NEXT_BELOW )
962 flags |= LVNI_BELOW;
963 if ( geom == wxLIST_NEXT_LEFT )
964 flags |= LVNI_TOLEFT;
965 if ( geom == wxLIST_NEXT_RIGHT )
966 flags |= LVNI_TORIGHT;
967
968 if ( state & wxLIST_STATE_CUT )
969 flags |= LVNI_CUT;
970 if ( state & wxLIST_STATE_DROPHILITED )
971 flags |= LVNI_DROPHILITED;
972 if ( state & wxLIST_STATE_FOCUSED )
973 flags |= LVNI_FOCUSED;
974 if ( state & wxLIST_STATE_SELECTED )
975 flags |= LVNI_SELECTED;
976
977 return (long) ListView_GetNextItem(GetHwnd(), item, flags);
978 }
979
980
981 wxImageList *wxListCtrl::GetImageList(int which) const
982 {
983 if ( which == wxIMAGE_LIST_NORMAL )
984 {
985 return m_imageListNormal;
986 }
987 else if ( which == wxIMAGE_LIST_SMALL )
988 {
989 return m_imageListSmall;
990 }
991 else if ( which == wxIMAGE_LIST_STATE )
992 {
993 return m_imageListState;
994 }
995 return NULL;
996 }
997
998 void wxListCtrl::SetImageList(wxImageList *imageList, int which)
999 {
1000 int flags = 0;
1001 if ( which == wxIMAGE_LIST_NORMAL )
1002 {
1003 flags = LVSIL_NORMAL;
1004 if (m_ownsImageListNormal) delete m_imageListNormal;
1005 m_imageListNormal = imageList;
1006 m_ownsImageListNormal = FALSE;
1007 }
1008 else if ( which == wxIMAGE_LIST_SMALL )
1009 {
1010 flags = LVSIL_SMALL;
1011 if (m_ownsImageListSmall) delete m_imageListSmall;
1012 m_imageListSmall = imageList;
1013 m_ownsImageListSmall = FALSE;
1014 }
1015 else if ( which == wxIMAGE_LIST_STATE )
1016 {
1017 flags = LVSIL_STATE;
1018 if (m_ownsImageListState) delete m_imageListState;
1019 m_imageListState = imageList;
1020 m_ownsImageListState = FALSE;
1021 }
1022 ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
1023 }
1024
1025 void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
1026 {
1027 SetImageList(imageList, which);
1028 if ( which == wxIMAGE_LIST_NORMAL )
1029 m_ownsImageListNormal = TRUE;
1030 else if ( which == wxIMAGE_LIST_SMALL )
1031 m_ownsImageListSmall = TRUE;
1032 else if ( which == wxIMAGE_LIST_STATE )
1033 m_ownsImageListState = TRUE;
1034 }
1035
1036 // ----------------------------------------------------------------------------
1037 // Operations
1038 // ----------------------------------------------------------------------------
1039
1040 // Arranges the items
1041 bool wxListCtrl::Arrange(int flag)
1042 {
1043 UINT code = 0;
1044 if ( flag == wxLIST_ALIGN_LEFT )
1045 code = LVA_ALIGNLEFT;
1046 else if ( flag == wxLIST_ALIGN_TOP )
1047 code = LVA_ALIGNTOP;
1048 else if ( flag == wxLIST_ALIGN_DEFAULT )
1049 code = LVA_DEFAULT;
1050 else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
1051 code = LVA_SNAPTOGRID;
1052
1053 return (ListView_Arrange(GetHwnd(), code) != 0);
1054 }
1055
1056 // Deletes an item
1057 bool wxListCtrl::DeleteItem(long item)
1058 {
1059 if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
1060 {
1061 wxLogLastError(_T("ListView_DeleteItem"));
1062 return FALSE;
1063 }
1064
1065 // the virtual list control doesn't refresh itself correctly, help it
1066 if ( IsVirtual() )
1067 {
1068 // we need to refresh all the lines below the one which was deleted
1069 wxRect rectItem;
1070 if ( item > 0 && GetItemCount() )
1071 {
1072 GetItemRect(item - 1, rectItem);
1073 }
1074 else
1075 {
1076 rectItem.y =
1077 rectItem.height = 0;
1078 }
1079
1080 wxRect rectWin = GetRect();
1081 rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
1082 rectWin.y = rectItem.GetBottom();
1083
1084 RefreshRect(rectWin);
1085 }
1086
1087 return TRUE;
1088 }
1089
1090 // Deletes all items
1091 bool wxListCtrl::DeleteAllItems()
1092 {
1093 return ListView_DeleteAllItems(GetHwnd()) != 0;
1094 }
1095
1096 // Deletes all items
1097 bool wxListCtrl::DeleteAllColumns()
1098 {
1099 while ( m_colCount > 0 )
1100 {
1101 if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
1102 {
1103 wxLogLastError(wxT("ListView_DeleteColumn"));
1104
1105 return FALSE;
1106 }
1107
1108 m_colCount--;
1109 }
1110
1111 wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
1112
1113 return TRUE;
1114 }
1115
1116 // Deletes a column
1117 bool wxListCtrl::DeleteColumn(int col)
1118 {
1119 bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
1120
1121 if ( success && (m_colCount > 0) )
1122 m_colCount --;
1123 return success;
1124 }
1125
1126 // Clears items, and columns if there are any.
1127 void wxListCtrl::ClearAll()
1128 {
1129 DeleteAllItems();
1130 if ( m_colCount > 0 )
1131 DeleteAllColumns();
1132 }
1133
1134 wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
1135 {
1136 wxASSERT( (textControlClass->IsKindOf(CLASSINFO(wxTextCtrl))) );
1137
1138 // VS: ListView_EditLabel requires that the list has focus.
1139 SetFocus();
1140 HWND hWnd = (HWND) ListView_EditLabel(GetHwnd(), item);
1141
1142 if (m_textCtrl)
1143 {
1144 m_textCtrl->SetHWND(0);
1145 m_textCtrl->UnsubclassWin();
1146 delete m_textCtrl;
1147 m_textCtrl = NULL;
1148 }
1149
1150 m_textCtrl = (wxTextCtrl*) textControlClass->CreateObject();
1151 m_textCtrl->SetHWND((WXHWND) hWnd);
1152 m_textCtrl->SubclassWin((WXHWND) hWnd);
1153
1154 return m_textCtrl;
1155 }
1156
1157 // End label editing, optionally cancelling the edit
1158 bool wxListCtrl::EndEditLabel(bool WXUNUSED(cancel))
1159 {
1160 wxFAIL_MSG( _T("not implemented") );
1161
1162 return FALSE;
1163 }
1164
1165 // Ensures this item is visible
1166 bool wxListCtrl::EnsureVisible(long item)
1167 {
1168 return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != 0;
1169 }
1170
1171 // Find an item whose label matches this string, starting from the item after 'start'
1172 // or the beginning if 'start' is -1.
1173 long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
1174 {
1175 LV_FINDINFO findInfo;
1176
1177 findInfo.flags = LVFI_STRING;
1178 if ( partial )
1179 findInfo.flags |= LVFI_PARTIAL;
1180 findInfo.psz = str;
1181
1182 // ListView_FindItem() excludes the first item from search and to look
1183 // through all the items you need to start from -1 which is unnatural and
1184 // inconsistent with the generic version - so we adjust the index
1185 if (start != -1)
1186 start --;
1187 return ListView_FindItem(GetHwnd(), (int) start, &findInfo);
1188 }
1189
1190 // Find an item whose data matches this data, starting from the item after 'start'
1191 // or the beginning if 'start' is -1.
1192 long wxListCtrl::FindItem(long start, long data)
1193 {
1194 LV_FINDINFO findInfo;
1195
1196 findInfo.flags = LVFI_PARAM;
1197 findInfo.lParam = data;
1198
1199 return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
1200 }
1201
1202 // Find an item nearest this position in the specified direction, starting from
1203 // the item after 'start' or the beginning if 'start' is -1.
1204 long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
1205 {
1206 LV_FINDINFO findInfo;
1207
1208 findInfo.flags = LVFI_NEARESTXY;
1209 findInfo.pt.x = pt.x;
1210 findInfo.pt.y = pt.y;
1211 findInfo.vkDirection = VK_RIGHT;
1212
1213 if ( direction == wxLIST_FIND_UP )
1214 findInfo.vkDirection = VK_UP;
1215 else if ( direction == wxLIST_FIND_DOWN )
1216 findInfo.vkDirection = VK_DOWN;
1217 else if ( direction == wxLIST_FIND_LEFT )
1218 findInfo.vkDirection = VK_LEFT;
1219 else if ( direction == wxLIST_FIND_RIGHT )
1220 findInfo.vkDirection = VK_RIGHT;
1221
1222 return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
1223 }
1224
1225 // Determines which item (if any) is at the specified point,
1226 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
1227 long wxListCtrl::HitTest(const wxPoint& point, int& flags)
1228 {
1229 LV_HITTESTINFO hitTestInfo;
1230 hitTestInfo.pt.x = (int) point.x;
1231 hitTestInfo.pt.y = (int) point.y;
1232
1233 ListView_HitTest(GetHwnd(), & hitTestInfo);
1234
1235 flags = 0;
1236 if ( hitTestInfo.flags & LVHT_ABOVE )
1237 flags |= wxLIST_HITTEST_ABOVE;
1238 if ( hitTestInfo.flags & LVHT_BELOW )
1239 flags |= wxLIST_HITTEST_BELOW;
1240 if ( hitTestInfo.flags & LVHT_NOWHERE )
1241 flags |= wxLIST_HITTEST_NOWHERE;
1242 if ( hitTestInfo.flags & LVHT_ONITEMICON )
1243 flags |= wxLIST_HITTEST_ONITEMICON;
1244 if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
1245 flags |= wxLIST_HITTEST_ONITEMLABEL;
1246 if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
1247 flags |= wxLIST_HITTEST_ONITEMSTATEICON;
1248 if ( hitTestInfo.flags & LVHT_TOLEFT )
1249 flags |= wxLIST_HITTEST_TOLEFT;
1250 if ( hitTestInfo.flags & LVHT_TORIGHT )
1251 flags |= wxLIST_HITTEST_TORIGHT;
1252
1253 return (long) hitTestInfo.iItem;
1254 }
1255
1256 // Inserts an item, returning the index of the new item if successful,
1257 // -1 otherwise.
1258 long wxListCtrl::InsertItem(wxListItem& info)
1259 {
1260 wxASSERT_MSG( !IsVirtual(), _T("can't be used with virtual controls") );
1261
1262 LV_ITEM item;
1263 wxConvertToMSWListItem(this, info, item);
1264
1265 // check whether it has any custom attributes
1266 if ( info.HasAttributes() )
1267 {
1268
1269 wxListItemAttr *attr;
1270 attr = (wxListItemAttr*) m_attrs.Get(item.iItem);
1271
1272 if (attr == NULL)
1273
1274 m_attrs.Put(item.iItem, (wxObject *)new wxListItemAttr(*info.GetAttributes()));
1275
1276 else *attr = *info.GetAttributes();
1277
1278 m_hasAnyAttr = TRUE;
1279 }
1280
1281 return (long) ListView_InsertItem(GetHwnd(), & item);
1282 }
1283
1284 long wxListCtrl::InsertItem(long index, const wxString& label)
1285 {
1286 wxListItem info;
1287 info.m_text = label;
1288 info.m_mask = wxLIST_MASK_TEXT;
1289 info.m_itemId = index;
1290 return InsertItem(info);
1291 }
1292
1293 // Inserts an image item
1294 long wxListCtrl::InsertItem(long index, int imageIndex)
1295 {
1296 wxListItem info;
1297 info.m_image = imageIndex;
1298 info.m_mask = wxLIST_MASK_IMAGE;
1299 info.m_itemId = index;
1300 return InsertItem(info);
1301 }
1302
1303 // Inserts an image/string item
1304 long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
1305 {
1306 wxListItem info;
1307 info.m_image = imageIndex;
1308 info.m_text = label;
1309 info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
1310 info.m_itemId = index;
1311 return InsertItem(info);
1312 }
1313
1314 // For list view mode (only), inserts a column.
1315 long wxListCtrl::InsertColumn(long col, wxListItem& item)
1316 {
1317 LV_COLUMN lvCol;
1318 wxConvertToMSWListCol(col, item, lvCol);
1319
1320 if ( !(lvCol.mask & LVCF_WIDTH) )
1321 {
1322 // always give some width to the new column: this one is compatible
1323 // with the generic version
1324 lvCol.mask |= LVCF_WIDTH;
1325 lvCol.cx = 80;
1326 }
1327
1328 // when we insert a column which can contain an image, we must specify this
1329 // flag right now as doing it later in SetColumn() has no effect
1330 //
1331 // we use LVCFMT_BITMAP_ON_RIGHT by default because without it there is no
1332 // way to dynamically set/clear the bitmap as the column without a bitmap
1333 // on the left looks ugly (there is a hole)
1334 //
1335 // unfortunately with my version of comctl32.dll (5.80), the left column
1336 // image is always on the left and it seems that it's a "feature" - I
1337 // didn't find any way to work around it in any case
1338 if ( lvCol.mask & LVCF_IMAGE )
1339 {
1340 lvCol.mask |= LVCF_FMT;
1341 lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT;
1342 }
1343
1344 bool success = ListView_InsertColumn(GetHwnd(), col, &lvCol) != -1;
1345 if ( success )
1346 {
1347 m_colCount++;
1348 }
1349 else
1350 {
1351 wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
1352 lvCol.pszText);
1353 }
1354
1355 return success;
1356 }
1357
1358 long wxListCtrl::InsertColumn(long col,
1359 const wxString& heading,
1360 int format,
1361 int width)
1362 {
1363 wxListItem item;
1364 item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
1365 item.m_text = heading;
1366 if ( width > -1 )
1367 {
1368 item.m_mask |= wxLIST_MASK_WIDTH;
1369 item.m_width = width;
1370 }
1371 item.m_format = format;
1372
1373 return InsertColumn(col, item);
1374 }
1375
1376 // Scrolls the list control. If in icon, small icon or report view mode,
1377 // x specifies the number of pixels to scroll. If in list view mode, x
1378 // specifies the number of columns to scroll.
1379 // If in icon, small icon or list view mode, y specifies the number of pixels
1380 // to scroll. If in report view mode, y specifies the number of lines to scroll.
1381 bool wxListCtrl::ScrollList(int dx, int dy)
1382 {
1383 return (ListView_Scroll(GetHwnd(), dx, dy) != 0);
1384 }
1385
1386 // Sort items.
1387
1388 // fn is a function which takes 3 long arguments: item1, item2, data.
1389 // item1 is the long data associated with a first item (NOT the index).
1390 // item2 is the long data associated with a second item (NOT the index).
1391 // data is the same value as passed to SortItems.
1392 // The return value is a negative number if the first item should precede the second
1393 // item, a positive number of the second item should precede the first,
1394 // or zero if the two items are equivalent.
1395
1396 // data is arbitrary data to be passed to the sort function.
1397
1398 // FIXME: this is horrible and MT-unsafe and everything else but I don't have
1399 // time for anything better right now (VZ)
1400 static long gs_sortData = 0;
1401 static wxListCtrl *gs_sortCtrl = NULL;
1402 static wxListCtrlCompare gs_sortFunction = NULL;
1403
1404 int wxCMPFUNC_CONV wxListCtrlCompareFn(const void *arg1, const void *arg2)
1405 {
1406 int n1 = *(const int *)arg1,
1407 n2 = *(const int *)arg2;
1408
1409 return gs_sortFunction(gs_sortCtrl->GetItemData(n1),
1410 gs_sortCtrl->GetItemData(n2),
1411 gs_sortData);
1412 }
1413
1414 bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
1415 {
1416 // sort the attributes too
1417 if ( m_hasAnyAttr )
1418 {
1419 int n,
1420 count = GetItemCount();
1421 int *aItems = new int[count];
1422 for ( n = 0; n < count; n++ )
1423 {
1424 aItems[n] = n;
1425 }
1426
1427 gs_sortData = data;
1428 gs_sortCtrl = this;
1429 gs_sortFunction = fn;
1430
1431 qsort(aItems, count, sizeof(int), wxListCtrlCompareFn);
1432
1433 gs_sortData = 0;
1434 gs_sortCtrl = NULL;
1435 gs_sortFunction = NULL;
1436
1437 wxHashTable attrsNew(wxKEY_INTEGER, 1000);
1438 for ( n = 0; n < count; n++ )
1439 {
1440 wxObject *attr = m_attrs.Delete(aItems[n]);
1441 if ( attr )
1442 {
1443 attrsNew.Put(n, attr);
1444 }
1445 }
1446
1447 m_attrs.Destroy();
1448 m_attrs = attrsNew;
1449
1450 delete [] aItems;
1451 }
1452
1453 if ( !ListView_SortItems(GetHwnd(), (PFNLVCOMPARE)fn, data) )
1454 {
1455 wxLogDebug(_T("ListView_SortItems() failed"));
1456
1457 return FALSE;
1458 }
1459
1460 return TRUE;
1461 }
1462
1463
1464
1465 // ----------------------------------------------------------------------------
1466 // message processing
1467 // ----------------------------------------------------------------------------
1468
1469 bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id)
1470 {
1471 if (cmd == EN_UPDATE)
1472 {
1473 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
1474 event.SetEventObject( this );
1475 ProcessCommand(event);
1476 return TRUE;
1477 }
1478 else if (cmd == EN_KILLFOCUS)
1479 {
1480 wxCommandEvent event(wxEVT_KILL_FOCUS, id);
1481 event.SetEventObject( this );
1482 ProcessCommand(event);
1483 return TRUE;
1484 }
1485 else
1486 return FALSE;
1487 }
1488
1489 bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
1490 {
1491 // prepare the event
1492 // -----------------
1493
1494 wxListEvent event(wxEVT_NULL, m_windowId);
1495 event.SetEventObject(this);
1496
1497 wxEventType eventType = wxEVT_NULL;
1498
1499 NMHDR *nmhdr = (NMHDR *)lParam;
1500
1501 // if your compiler is as broken as this, you should really change it: this
1502 // code is needed for normal operation! #ifdef below is only useful for
1503 // automatic rebuilds which are done with a very old compiler version
1504 #ifdef HDN_BEGINTRACKA
1505
1506 // check for messages from the header (in report view)
1507 HWND hwndHdr = ListView_GetHeader(GetHwnd());
1508
1509 // is it a message from the header?
1510 if ( nmhdr->hwndFrom == hwndHdr )
1511 {
1512 HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
1513
1514 event.m_itemIndex = -1;
1515
1516 switch ( nmhdr->code )
1517 {
1518 // yet another comctl32.dll bug: under NT/W2K it sends Unicode
1519 // TRACK messages even to ANSI programs: on my system I get
1520 // HDN_BEGINTRACKW and HDN_ENDTRACKA and no HDN_TRACK at all!
1521 //
1522 // work around is to simply catch both versions and hope that it
1523 // works (why should this message exist in ANSI and Unicode is
1524 // beyond me as it doesn't deal with strings at all...)
1525 case HDN_BEGINTRACKA:
1526 case HDN_BEGINTRACKW:
1527 eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
1528 // fall through
1529
1530 case HDN_TRACKA:
1531 case HDN_TRACKW:
1532 if ( eventType == wxEVT_NULL )
1533 eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
1534 // fall through
1535
1536 case HDN_ENDTRACKA:
1537 case HDN_ENDTRACKW:
1538 if ( eventType == wxEVT_NULL )
1539 eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
1540 event.m_col = nmHDR->iItem;
1541 break;
1542
1543 case NM_RCLICK:
1544 {
1545 eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
1546 event.m_col = -1;
1547
1548 // find the column clicked: we have to search for it
1549 // ourselves as the notification message doesn't provide
1550 // this info
1551
1552 // where did the click occur?
1553 POINT ptClick;
1554 if ( !::GetCursorPos(&ptClick) )
1555 {
1556 wxLogLastError(_T("GetCursorPos"));
1557 }
1558
1559 if ( !::ScreenToClient(hwndHdr, &ptClick) )
1560 {
1561 wxLogLastError(_T("ScreenToClient(listctrl header)"));
1562 }
1563
1564 event.m_pointDrag.x = ptClick.x;
1565 event.m_pointDrag.y = ptClick.y;
1566
1567 int colCount = Header_GetItemCount(hwndHdr);
1568
1569 RECT rect;
1570 for ( int col = 0; col < colCount; col++ )
1571 {
1572 if ( Header_GetItemRect(hwndHdr, col, &rect) )
1573 {
1574 if ( ::PtInRect(&rect, ptClick) )
1575 {
1576 event.m_col = col;
1577 break;
1578 }
1579 }
1580 }
1581 }
1582 break;
1583
1584 default:
1585 return wxControl::MSWOnNotify(idCtrl, lParam, result);
1586 }
1587 }
1588 else
1589 #endif // defined(HDN_BEGINTRACKA)
1590 if ( nmhdr->hwndFrom == GetHwnd() )
1591 {
1592 // almost all messages use NM_LISTVIEW
1593 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
1594
1595 // this is true for almost all events
1596 event.m_item.m_data = nmLV->lParam;
1597
1598 switch ( nmhdr->code )
1599 {
1600 case LVN_BEGINRDRAG:
1601 eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
1602 // fall through
1603
1604 case LVN_BEGINDRAG:
1605 if ( eventType == wxEVT_NULL )
1606 {
1607 eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
1608 }
1609
1610 event.m_itemIndex = nmLV->iItem;
1611 event.m_pointDrag.x = nmLV->ptAction.x;
1612 event.m_pointDrag.y = nmLV->ptAction.y;
1613 break;
1614
1615 case LVN_BEGINLABELEDIT:
1616 {
1617 eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
1618 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
1619 wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
1620 event.m_itemIndex = event.m_item.m_itemId;
1621 }
1622 break;
1623
1624 case LVN_COLUMNCLICK:
1625 eventType = wxEVT_COMMAND_LIST_COL_CLICK;
1626 event.m_itemIndex = -1;
1627 event.m_col = nmLV->iSubItem;
1628 break;
1629
1630 case LVN_DELETEALLITEMS:
1631 eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
1632 event.m_itemIndex = -1;
1633
1634 FreeAllAttrs();
1635
1636 break;
1637
1638 case LVN_DELETEITEM:
1639 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
1640 event.m_itemIndex = nmLV->iItem;
1641
1642 if ( m_hasAnyAttr )
1643 {
1644 delete (wxListItemAttr *)m_attrs.Delete(nmLV->iItem);
1645 }
1646 break;
1647
1648 case LVN_ENDLABELEDIT:
1649 {
1650 eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
1651 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
1652 wxConvertFromMSWListItem(NULL, event.m_item, info->item);
1653 if ( info->item.pszText == NULL || info->item.iItem == -1 )
1654 return FALSE;
1655
1656 event.m_itemIndex = event.m_item.m_itemId;
1657 }
1658 break;
1659
1660 case LVN_SETDISPINFO:
1661 {
1662 eventType = wxEVT_COMMAND_LIST_SET_INFO;
1663 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
1664 wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
1665 }
1666 break;
1667
1668 case LVN_INSERTITEM:
1669 eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
1670 event.m_itemIndex = nmLV->iItem;
1671 break;
1672
1673 case LVN_ITEMCHANGED:
1674 // we translate this catch all message into more interesting
1675 // (and more easy to process) wxWindows events
1676
1677 // first of all, we deal with the state change events only
1678 if ( nmLV->uChanged & LVIF_STATE )
1679 {
1680 // temp vars for readability
1681 const UINT stOld = nmLV->uOldState;
1682 const UINT stNew = nmLV->uNewState;
1683
1684 // has the focus changed?
1685 if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
1686 {
1687 eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
1688 event.m_itemIndex = nmLV->iItem;
1689 }
1690
1691 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
1692 {
1693 if ( eventType != wxEVT_NULL )
1694 {
1695 // focus and selection have both changed: send the
1696 // focus event from here and the selection one
1697 // below
1698 event.SetEventType(eventType);
1699 (void)GetEventHandler()->ProcessEvent(event);
1700 }
1701 else // no focus event to send
1702 {
1703 // then need to set m_itemIndex as it wasn't done
1704 // above
1705 event.m_itemIndex = nmLV->iItem;
1706 }
1707
1708 eventType = stNew & LVIS_SELECTED
1709 ? wxEVT_COMMAND_LIST_ITEM_SELECTED
1710 : wxEVT_COMMAND_LIST_ITEM_DESELECTED;
1711 }
1712 }
1713
1714 if ( eventType == wxEVT_NULL )
1715 {
1716 // not an interesting event for us
1717 return FALSE;
1718 }
1719
1720 break;
1721
1722 case LVN_KEYDOWN:
1723 {
1724 LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
1725 WORD wVKey = info->wVKey;
1726
1727 // get the current selection
1728 long lItem = GetNextItem(-1,
1729 wxLIST_NEXT_ALL,
1730 wxLIST_STATE_SELECTED);
1731
1732 // <Enter> or <Space> activate the selected item if any (but
1733 // not with Shift and/or Ctrl as then they have a predefined
1734 // meaning for the list view)
1735 if ( lItem != -1 &&
1736 (wVKey == VK_RETURN || wVKey == VK_SPACE) &&
1737 !(wxIsShiftDown() || wxIsCtrlDown()) )
1738 {
1739 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
1740 }
1741 else
1742 {
1743 eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
1744
1745 // wxCharCodeMSWToWX() returns 0 if the key is an ASCII
1746 // value which should be used as is
1747 int code = wxCharCodeMSWToWX(wVKey);
1748 event.m_code = code ? code : wVKey;
1749 }
1750
1751 event.m_itemIndex =
1752 event.m_item.m_itemId = lItem;
1753
1754 if ( lItem != -1 )
1755 {
1756 // fill the other fields too
1757 event.m_item.m_text = GetItemText(lItem);
1758 event.m_item.m_data = GetItemData(lItem);
1759 }
1760 }
1761 break;
1762
1763 case NM_DBLCLK:
1764 // if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
1765 // anything else
1766 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
1767 {
1768 return TRUE;
1769 }
1770
1771 // else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
1772 // if it happened on an item (and not on empty place)
1773 if ( nmLV->iItem == -1 )
1774 {
1775 // not on item
1776 return FALSE;
1777 }
1778
1779 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
1780 event.m_itemIndex = nmLV->iItem;
1781 event.m_item.m_text = GetItemText(nmLV->iItem);
1782 event.m_item.m_data = GetItemData(nmLV->iItem);
1783 break;
1784
1785 case NM_RCLICK:
1786 // if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
1787 // don't do anything else
1788 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
1789 {
1790 return TRUE;
1791 }
1792
1793 // else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
1794 LV_HITTESTINFO lvhti;
1795 wxZeroMemory(lvhti);
1796
1797 ::GetCursorPos(&(lvhti.pt));
1798 ::ScreenToClient(GetHwnd(),&(lvhti.pt));
1799 if ( ListView_HitTest(GetHwnd(),&lvhti) != -1 )
1800 {
1801 if ( lvhti.flags & LVHT_ONITEM )
1802 {
1803 eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
1804 event.m_itemIndex = lvhti.iItem;
1805 event.m_pointDrag.x = lvhti.pt.x;
1806 event.m_pointDrag.y = lvhti.pt.y;
1807 }
1808 }
1809 break;
1810
1811 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
1812 && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
1813 case NM_CUSTOMDRAW:
1814 *result = OnCustomDraw(lParam);
1815
1816 return TRUE;
1817 #endif // _WIN32_IE >= 0x300
1818
1819 case LVN_ODCACHEHINT:
1820 {
1821 const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
1822
1823 eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
1824
1825 // we get some really stupid cache hints like ones for items in
1826 // range 0..0 for an empty control or, after deleting an item,
1827 // for items in invalid range - filter this garbage out
1828 if ( cacheHint->iFrom < cacheHint->iTo )
1829 {
1830 event.m_oldItemIndex = cacheHint->iFrom;
1831
1832 long iMax = GetItemCount();
1833 event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
1834 : iMax - 1;
1835 }
1836 else
1837 {
1838 return FALSE;
1839 }
1840 }
1841 break;
1842
1843 case LVN_GETDISPINFO:
1844 if ( IsVirtual() )
1845 {
1846 LV_DISPINFO *info = (LV_DISPINFO *)lParam;
1847
1848 LV_ITEM& lvi = info->item;
1849 long item = lvi.iItem;
1850
1851 if ( lvi.mask & LVIF_TEXT )
1852 {
1853 wxString text = OnGetItemText(item, lvi.iSubItem);
1854 wxStrncpy(lvi.pszText, text, lvi.cchTextMax);
1855 }
1856
1857 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
1858 && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 1 ) )
1859 if ( lvi.mask & LVIF_IMAGE )
1860 {
1861 lvi.iImage = OnGetItemImage(item);
1862 }
1863 #endif
1864
1865 // a little dose of healthy paranoia: as we never use
1866 // LVM_SETCALLBACKMASK we're not supposed to get these ones
1867 wxASSERT_MSG( !(lvi.mask & LVIF_STATE),
1868 _T("we don't support state callbacks yet!") );
1869
1870 return TRUE;
1871 }
1872 // fall through
1873
1874 default:
1875 return wxControl::MSWOnNotify(idCtrl, lParam, result);
1876 }
1877 }
1878 else
1879 {
1880 // where did this one come from?
1881 return FALSE;
1882 }
1883
1884 // process the event
1885 // -----------------
1886
1887 event.SetEventType(eventType);
1888
1889 if ( !GetEventHandler()->ProcessEvent(event) )
1890 return FALSE;
1891
1892 // post processing
1893 // ---------------
1894
1895 switch ( nmhdr->code )
1896 {
1897 case LVN_DELETEALLITEMS:
1898 // always return TRUE to suppress all additional LVN_DELETEITEM
1899 // notifications - this makes deleting all items from a list ctrl
1900 // much faster
1901 *result = TRUE;
1902
1903 return TRUE;
1904
1905 case LVN_ENDLABELEDIT:
1906 // logic here is inversed compared to all the other messages
1907 *result = event.IsAllowed();
1908
1909 return TRUE;
1910 }
1911
1912 *result = !event.IsAllowed();
1913
1914 return TRUE;
1915 }
1916
1917 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300
1918
1919 WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
1920 {
1921 LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)lParam;
1922 NMCUSTOMDRAW& nmcd = lplvcd->nmcd;
1923 switch ( nmcd.dwDrawStage )
1924 {
1925 case CDDS_PREPAINT:
1926 // if we've got any items with non standard attributes,
1927 // notify us before painting each item
1928 //
1929 // for virtual controls, always suppose that we have attributes as
1930 // there is no way to check for this
1931 return IsVirtual() || m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
1932 : CDRF_DODEFAULT;
1933
1934 case CDDS_ITEMPREPAINT:
1935 {
1936 size_t item = (size_t)nmcd.dwItemSpec;
1937 if ( item >= (size_t)GetItemCount() )
1938 {
1939 // we get this message with item == 0 for an empty control,
1940 // we must ignore it as calling OnGetItemAttr() would be
1941 // wrong
1942 return CDRF_DODEFAULT;
1943 }
1944
1945 wxListItemAttr *attr =
1946 IsVirtual() ? OnGetItemAttr(item)
1947 : (wxListItemAttr *)m_attrs.Get(item);
1948
1949 if ( !attr )
1950 {
1951 // nothing to do for this item
1952 return CDRF_DODEFAULT;
1953 }
1954
1955 HFONT hFont;
1956 wxColour colText, colBack;
1957 if ( attr->HasFont() )
1958 {
1959 wxFont font = attr->GetFont();
1960 hFont = (HFONT)font.GetResourceHandle();
1961 }
1962 else
1963 {
1964 hFont = 0;
1965 }
1966
1967 if ( attr->HasTextColour() )
1968 {
1969 colText = attr->GetTextColour();
1970 }
1971 else
1972 {
1973 colText = GetTextColour();
1974 }
1975
1976 if ( attr->HasBackgroundColour() )
1977 {
1978 colBack = attr->GetBackgroundColour();
1979 }
1980 else
1981 {
1982 colBack = GetBackgroundColour();
1983 }
1984
1985 lplvcd->clrText = wxColourToRGB(colText);
1986 lplvcd->clrTextBk = wxColourToRGB(colBack);
1987
1988 // note that if we wanted to set colours for
1989 // individual columns (subitems), we would have
1990 // returned CDRF_NOTIFYSUBITEMREDRAW from here
1991 if ( hFont )
1992 {
1993 ::SelectObject(nmcd.hdc, hFont);
1994
1995 return CDRF_NEWFONT;
1996 }
1997 }
1998 // fall through to return CDRF_DODEFAULT
1999
2000 default:
2001 return CDRF_DODEFAULT;
2002 }
2003 }
2004
2005 #endif // NM_CUSTOMDRAW supported
2006
2007 // Necessary for drawing hrules and vrules, if specified
2008 void wxListCtrl::OnPaint(wxPaintEvent& event)
2009 {
2010 wxPaintDC dc(this);
2011
2012 wxControl::OnPaint(event);
2013
2014 // Reset the device origin since it may have been set
2015 dc.SetDeviceOrigin(0, 0);
2016
2017 bool drawHRules = ((GetWindowStyle() & wxLC_HRULES) != 0);
2018 bool drawVRules = ((GetWindowStyle() & wxLC_VRULES) != 0);
2019
2020 if (!drawHRules && !drawVRules)
2021 return;
2022 if ((GetWindowStyle() & wxLC_REPORT) == 0)
2023 return;
2024
2025 wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
2026 dc.SetPen(pen);
2027 dc.SetBrush(* wxTRANSPARENT_BRUSH);
2028
2029 wxSize clientSize = GetClientSize();
2030 wxRect itemRect;
2031 int cy=0;
2032
2033 int itemCount = GetItemCount();
2034 int i;
2035 if (drawHRules)
2036 {
2037 long top = GetTopItem();
2038 for (i = top; i < top + GetCountPerPage() + 1; i++)
2039 {
2040 if (GetItemRect(i, itemRect))
2041 {
2042 cy = itemRect.GetTop();
2043 if (i != 0) // Don't draw the first one
2044 {
2045 dc.DrawLine(0, cy, clientSize.x, cy);
2046 }
2047 // Draw last line
2048 if (i == itemCount - 1)
2049 {
2050 cy = itemRect.GetBottom();
2051 dc.DrawLine(0, cy, clientSize.x, cy);
2052 }
2053 }
2054 }
2055 }
2056 i = itemCount - 1;
2057 if (drawVRules && (i > -1))
2058 {
2059 wxRect firstItemRect;
2060 GetItemRect(0, firstItemRect);
2061
2062 if (GetItemRect(i, itemRect))
2063 {
2064 int col;
2065 int x = itemRect.GetX();
2066 for (col = 0; col < GetColumnCount(); col++)
2067 {
2068 int colWidth = GetColumnWidth(col);
2069 x += colWidth ;
2070 dc.DrawLine(x, firstItemRect.GetY() - 2, x, itemRect.GetBottom());
2071 }
2072 }
2073 }
2074 }
2075
2076 // ----------------------------------------------------------------------------
2077 // virtual list controls
2078 // ----------------------------------------------------------------------------
2079
2080 wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(col)) const
2081 {
2082 // this is a pure virtual function, in fact - which is not really pure
2083 // because the controls which are not virtual don't need to implement it
2084 wxFAIL_MSG( _T("not supposed to be called") );
2085
2086 return wxEmptyString;
2087 }
2088
2089 int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
2090 {
2091 // same as above
2092 wxFAIL_MSG( _T("not supposed to be called") );
2093
2094 return -1;
2095 }
2096
2097 wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
2098 {
2099 wxASSERT_MSG( item >= 0 && item < GetItemCount(),
2100 _T("invalid item index in OnGetItemAttr()") );
2101
2102 // no attributes by default
2103 return NULL;
2104 }
2105
2106 void wxListCtrl::SetItemCount(long count)
2107 {
2108 wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
2109
2110 if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count, 0) )
2111 {
2112 wxLogLastError(_T("ListView_SetItemCount"));
2113 }
2114 }
2115
2116 void wxListCtrl::RefreshItem(long item)
2117 {
2118 // strangely enough, ListView_Update() results in much more flicker here
2119 // than a dumb Refresh() -- why?
2120 #if 0
2121 if ( !ListView_Update(GetHwnd(), item) )
2122 {
2123 wxLogLastError(_T("ListView_Update"));
2124 }
2125 #else // 1
2126 wxRect rect;
2127 GetItemRect(item, rect);
2128 RefreshRect(rect);
2129 #endif // 0/1
2130 }
2131
2132 void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
2133 {
2134 wxRect rect1, rect2;
2135 GetItemRect(itemFrom, rect1);
2136 GetItemRect(itemTo, rect2);
2137
2138 wxRect rect = rect1;
2139 rect.height = rect2.GetBottom() - rect1.GetTop();
2140
2141 RefreshRect(rect);
2142 }
2143
2144 // ----------------------------------------------------------------------------
2145 // wxListItem
2146 // ----------------------------------------------------------------------------
2147
2148 // List item structure
2149 wxListItem::wxListItem()
2150 {
2151 m_mask = 0;
2152 m_itemId = 0;
2153 m_col = 0;
2154 m_state = 0;
2155 m_stateMask = 0;
2156 m_image = 0;
2157 m_data = 0;
2158
2159 m_format = wxLIST_FORMAT_CENTRE;
2160 m_width = 0;
2161
2162 m_attr = NULL;
2163 }
2164
2165 void wxListItem::Clear()
2166 {
2167 m_mask = 0;
2168 m_itemId = 0;
2169 m_col = 0;
2170 m_state = 0;
2171 m_stateMask = 0;
2172 m_image = 0;
2173 m_data = 0;
2174 m_format = wxLIST_FORMAT_CENTRE;
2175 m_width = 0;
2176 m_text = wxEmptyString;
2177
2178 if (m_attr) delete m_attr;
2179 m_attr = NULL;
2180 }
2181
2182 void wxListItem::ClearAttributes()
2183 {
2184 if (m_attr) delete m_attr;
2185 m_attr = NULL;
2186 }
2187
2188 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
2189 wxListItem& info,
2190 LV_ITEM& lvItem)
2191 {
2192 info.m_data = lvItem.lParam;
2193 info.m_mask = 0;
2194 info.m_state = 0;
2195 info.m_stateMask = 0;
2196 info.m_itemId = lvItem.iItem;
2197
2198 long oldMask = lvItem.mask;
2199
2200 bool needText = FALSE;
2201 if (hwndListCtrl != 0)
2202 {
2203 if ( lvItem.mask & LVIF_TEXT )
2204 needText = FALSE;
2205 else
2206 needText = TRUE;
2207
2208 if ( needText )
2209 {
2210 lvItem.pszText = new wxChar[513];
2211 lvItem.cchTextMax = 512;
2212 }
2213 lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
2214 ::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
2215 }
2216
2217 if ( lvItem.mask & LVIF_STATE )
2218 {
2219 info.m_mask |= wxLIST_MASK_STATE;
2220
2221 if ( lvItem.stateMask & LVIS_CUT)
2222 {
2223 info.m_stateMask |= wxLIST_STATE_CUT;
2224 if ( lvItem.state & LVIS_CUT )
2225 info.m_state |= wxLIST_STATE_CUT;
2226 }
2227 if ( lvItem.stateMask & LVIS_DROPHILITED)
2228 {
2229 info.m_stateMask |= wxLIST_STATE_DROPHILITED;
2230 if ( lvItem.state & LVIS_DROPHILITED )
2231 info.m_state |= wxLIST_STATE_DROPHILITED;
2232 }
2233 if ( lvItem.stateMask & LVIS_FOCUSED)
2234 {
2235 info.m_stateMask |= wxLIST_STATE_FOCUSED;
2236 if ( lvItem.state & LVIS_FOCUSED )
2237 info.m_state |= wxLIST_STATE_FOCUSED;
2238 }
2239 if ( lvItem.stateMask & LVIS_SELECTED)
2240 {
2241 info.m_stateMask |= wxLIST_STATE_SELECTED;
2242 if ( lvItem.state & LVIS_SELECTED )
2243 info.m_state |= wxLIST_STATE_SELECTED;
2244 }
2245 }
2246
2247 if ( lvItem.mask & LVIF_TEXT )
2248 {
2249 info.m_mask |= wxLIST_MASK_TEXT;
2250 info.m_text = lvItem.pszText;
2251 }
2252 if ( lvItem.mask & LVIF_IMAGE )
2253 {
2254 info.m_mask |= wxLIST_MASK_IMAGE;
2255 info.m_image = lvItem.iImage;
2256 }
2257 if ( lvItem.mask & LVIF_PARAM )
2258 info.m_mask |= wxLIST_MASK_DATA;
2259 if ( lvItem.mask & LVIF_DI_SETITEM )
2260 info.m_mask |= wxLIST_SET_ITEM;
2261 info.m_col = lvItem.iSubItem;
2262
2263 if (needText)
2264 {
2265 if (lvItem.pszText)
2266 delete[] lvItem.pszText;
2267 }
2268 lvItem.mask = oldMask;
2269 }
2270
2271 static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
2272 {
2273 if (stateMask & wxLIST_STATE_CUT)
2274 {
2275 lvItem.stateMask |= LVIS_CUT;
2276 if (state & wxLIST_STATE_CUT)
2277 lvItem.state |= LVIS_CUT;
2278 }
2279 if (stateMask & wxLIST_STATE_DROPHILITED)
2280 {
2281 lvItem.stateMask |= LVIS_DROPHILITED;
2282 if (state & wxLIST_STATE_DROPHILITED)
2283 lvItem.state |= LVIS_DROPHILITED;
2284 }
2285 if (stateMask & wxLIST_STATE_FOCUSED)
2286 {
2287 lvItem.stateMask |= LVIS_FOCUSED;
2288 if (state & wxLIST_STATE_FOCUSED)
2289 lvItem.state |= LVIS_FOCUSED;
2290 }
2291 if (stateMask & wxLIST_STATE_SELECTED)
2292 {
2293 lvItem.stateMask |= LVIS_SELECTED;
2294 if (state & wxLIST_STATE_SELECTED)
2295 lvItem.state |= LVIS_SELECTED;
2296 }
2297 }
2298
2299 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
2300 const wxListItem& info,
2301 LV_ITEM& lvItem)
2302 {
2303 lvItem.iItem = (int) info.m_itemId;
2304
2305 lvItem.iImage = info.m_image;
2306 lvItem.lParam = info.m_data;
2307 lvItem.stateMask = 0;
2308 lvItem.state = 0;
2309 lvItem.mask = 0;
2310 lvItem.iSubItem = info.m_col;
2311
2312 if (info.m_mask & wxLIST_MASK_STATE)
2313 {
2314 lvItem.mask |= LVIF_STATE;
2315
2316 wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
2317 }
2318
2319 if (info.m_mask & wxLIST_MASK_TEXT)
2320 {
2321 lvItem.mask |= LVIF_TEXT;
2322 if ( ctrl->GetWindowStyleFlag() & wxLC_USER_TEXT )
2323 {
2324 lvItem.pszText = LPSTR_TEXTCALLBACK;
2325 }
2326 else
2327 {
2328 // pszText is not const, hence the cast
2329 lvItem.pszText = (wxChar *)info.m_text.c_str();
2330 if ( lvItem.pszText )
2331 lvItem.cchTextMax = info.m_text.Length();
2332 else
2333 lvItem.cchTextMax = 0;
2334 }
2335 }
2336 if (info.m_mask & wxLIST_MASK_IMAGE)
2337 lvItem.mask |= LVIF_IMAGE;
2338 if (info.m_mask & wxLIST_MASK_DATA)
2339 lvItem.mask |= LVIF_PARAM;
2340 }
2341
2342 static void wxConvertToMSWListCol(int WXUNUSED(col), const wxListItem& item,
2343 LV_COLUMN& lvCol)
2344 {
2345 wxZeroMemory(lvCol);
2346
2347 if ( item.m_mask & wxLIST_MASK_TEXT )
2348 {
2349 lvCol.mask |= LVCF_TEXT;
2350 lvCol.pszText = (wxChar *)item.m_text.c_str(); // cast is safe
2351 }
2352
2353 if ( item.m_mask & wxLIST_MASK_FORMAT )
2354 {
2355 lvCol.mask |= LVCF_FMT;
2356
2357 if ( item.m_format == wxLIST_FORMAT_LEFT )
2358 lvCol.fmt = LVCFMT_LEFT;
2359 else if ( item.m_format == wxLIST_FORMAT_RIGHT )
2360 lvCol.fmt = LVCFMT_RIGHT;
2361 else if ( item.m_format == wxLIST_FORMAT_CENTRE )
2362 lvCol.fmt = LVCFMT_CENTER;
2363 }
2364
2365 if ( item.m_mask & wxLIST_MASK_WIDTH )
2366 {
2367 lvCol.mask |= LVCF_WIDTH;
2368 if ( item.m_width == wxLIST_AUTOSIZE)
2369 lvCol.cx = LVSCW_AUTOSIZE;
2370 else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
2371 lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
2372 else
2373 lvCol.cx = item.m_width;
2374 }
2375
2376 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
2377 && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 1 ) )
2378 if ( item.m_mask & wxLIST_MASK_IMAGE )
2379 {
2380 if ( wxTheApp->GetComCtl32Version() >= 470 )
2381 {
2382 lvCol.mask |= LVCF_IMAGE;
2383 lvCol.iImage = item.m_image;
2384 }
2385 //else: it doesn't support item images anyhow
2386 }
2387 #endif
2388 }
2389
2390 #endif // wxUSE_LISTCTRL