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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/wince/checklst.cpp
3 // Purpose: implementation of wxCheckListBox class
4 // Author: Wlodzimierz ABX Skiba
5 // Modified by:
6 // Created: 30.10.2005
7 // Copyright: (c) Wlodzimierz Skiba
8 // Licence: wxWindows licence
9 ///////////////////////////////////////////////////////////////////////////////
10
11 // ============================================================================
12 // declarations
13 // ============================================================================
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 // For compilers that support precompilation, includes "wx.h".
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #if wxUSE_CHECKLISTBOX
27
28 #include "wx/checklst.h"
29
30 #ifndef WX_PRECOMP
31 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
32 #endif
33
34 // ============================================================================
35 // implementation
36 // ============================================================================
37
38 // ----------------------------------------------------------------------------
39 // implementation of wxCheckListBox class
40 // ----------------------------------------------------------------------------
41
42 // define event table
43 // ------------------
44 BEGIN_EVENT_TABLE(wxCheckListBox, wxControl)
45 EVT_SIZE(wxCheckListBox::OnSize)
46 END_EVENT_TABLE()
47
48 // control creation
49 // ----------------
50
51 // def ctor: use Create() to really create the control
52 wxCheckListBox::wxCheckListBox()
53 {
54 }
55
56 // ctor which creates the associated control
57 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
58 const wxPoint& pos, const wxSize& size,
59 int nStrings, const wxString choices[],
60 long style, const wxValidator& val,
61 const wxString& name)
62 {
63 Create(parent, id, pos, size, nStrings, choices, style, val, name);
64 }
65
66 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
67 const wxPoint& pos, const wxSize& size,
68 const wxArrayString& choices,
69 long style, const wxValidator& val,
70 const wxString& name)
71 {
72 Create(parent, id, pos, size, choices, style, val, name);
73 }
74
75 wxCheckListBox::~wxCheckListBox()
76 {
77 m_itemsClientData.Clear();
78 }
79
80 bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
81 const wxPoint& pos, const wxSize& size,
82 int n, const wxString choices[],
83 long style,
84 const wxValidator& validator, const wxString& name)
85 {
86 // initialize base class fields
87 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
88 return false;
89
90 // create the native control
91 if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) )
92 {
93 // control creation failed
94 return false;
95 }
96
97 ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE, 0,
98 LVS_EX_CHECKBOXES | LVS_EX_FULLROWSELECT );
99
100 // insert single column with checkboxes and labels
101 LV_COLUMN col;
102 wxZeroMemory(col);
103 ListView_InsertColumn(GetHwnd(), 0, &col );
104
105 ListView_SetItemCount( GetHwnd(), n );
106
107 // initialize the contents
108 for ( int i = 0; i < n; i++ )
109 {
110 Append(choices[i]);
111 }
112
113 m_itemsClientData.SetCount(n);
114
115 // now we can compute our best size correctly, so do it if necessary
116 SetInitialSize(size);
117
118 return true;
119 }
120
121 bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
122 const wxPoint& pos, const wxSize& size,
123 const wxArrayString& choices,
124 long style,
125 const wxValidator& validator, const wxString& name)
126 {
127 wxCArrayString chs(choices);
128 return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
129 style, validator, name);
130 }
131
132 WXDWORD wxCheckListBox::MSWGetStyle(long style, WXDWORD *exstyle) const
133 {
134 WXDWORD wstyle = wxControl::MSWGetStyle(style, exstyle);
135
136 wstyle |= LVS_REPORT | LVS_NOCOLUMNHEADER | LVS_NOSORTHEADER;
137
138 return wstyle;
139 }
140
141 void wxCheckListBox::OnSize(wxSizeEvent& event)
142 {
143 // set width of the column we use to the width of list client area
144 event.Skip();
145 int w = GetClientSize().x;
146 ListView_SetColumnWidth( GetHwnd(), 0, w );
147 }
148
149 // misc overloaded methods
150 // -----------------------
151
152 void wxCheckListBox::DoDeleteOneItem(unsigned int n)
153 {
154 wxCHECK_RET( IsValid( n ), wxT("invalid index in wxCheckListBox::Delete") );
155
156 if ( !ListView_DeleteItem(GetHwnd(), n) )
157 {
158 wxLogLastError(wxT("ListView_DeleteItem"));
159 }
160 m_itemsClientData.RemoveAt(n);
161 }
162
163 // check items
164 // -----------
165
166 bool wxCheckListBox::IsChecked(unsigned int uiIndex) const
167 {
168 wxCHECK_MSG( IsValid( uiIndex ), false,
169 wxT("invalid index in wxCheckListBox::IsChecked") );
170
171 return (ListView_GetCheckState(((HWND)GetHWND()), uiIndex) != 0);
172 }
173
174 void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck)
175 {
176 wxCHECK_RET( IsValid( uiIndex ),
177 wxT("invalid index in wxCheckListBox::Check") );
178
179 ListView_SetCheckState(((HWND)GetHWND()), uiIndex, bCheck)
180 }
181
182 // interface derived from wxListBox and lower classes
183 // --------------------------------------------------
184
185 void wxCheckListBox::DoClear()
186 {
187 unsigned int n = GetCount();
188
189 while ( n > 0 )
190 {
191 n--;
192 DoDeleteOneItem(n);
193 }
194
195 wxASSERT_MSG( IsEmpty(), wxT("logic error in DoClear()") );
196 }
197
198 unsigned int wxCheckListBox::GetCount() const
199 {
200 return (unsigned int)ListView_GetItemCount( (HWND)GetHWND() );
201 }
202
203 int wxCheckListBox::GetSelection() const
204 {
205 int i;
206 for (i = 0; (unsigned int)i < GetCount(); i++)
207 {
208 int selState = ListView_GetItemState(GetHwnd(), i, LVIS_SELECTED);
209 if (selState == LVIS_SELECTED)
210 return i;
211 }
212
213 return wxNOT_FOUND;
214 }
215
216 int wxCheckListBox::GetSelections(wxArrayInt& aSelections) const
217 {
218 int i;
219 for (i = 0; (unsigned int)i < GetCount(); i++)
220 {
221 int selState = ListView_GetItemState(GetHwnd(), i, LVIS_SELECTED);
222 if (selState == LVIS_SELECTED)
223 aSelections.Add(i);
224 }
225
226 return aSelections.GetCount();
227 }
228
229 wxString wxCheckListBox::GetString(unsigned int n) const
230 {
231 const int bufSize = 513;
232 wxChar buf[bufSize];
233 ListView_GetItemText( (HWND)GetHWND(), n, 0, buf, bufSize - 1 );
234 buf[bufSize-1] = wxT('\0');
235 wxString str(buf);
236 return str;
237 }
238
239 bool wxCheckListBox::IsSelected(int n) const
240 {
241 int selState = ListView_GetItemState(GetHwnd(), n, LVIS_SELECTED);
242 return (selState == LVIS_SELECTED);
243 }
244
245 void wxCheckListBox::SetString(unsigned int n, const wxString& s)
246 {
247 wxCHECK_RET( IsValid( n ),
248 wxT("invalid index in wxCheckListBox::SetString") );
249 wxChar *buf = new wxChar[s.length()+1];
250 wxStrcpy(buf, s.c_str());
251 ListView_SetItemText( (HWND)GetHWND(), n, 0, buf );
252 delete [] buf;
253 }
254
255 void* wxCheckListBox::DoGetItemClientData(unsigned int n) const
256 {
257 return m_itemsClientData.Item(n);
258 }
259
260 int wxCheckListBox::DoInsertItems(const wxArrayStringsAdapter & items,
261 unsigned int pos,
262 void **clientData, wxClientDataType type)
263 {
264 const unsigned int count = items.GetCount();
265
266 ListView_SetItemCount( GetHwnd(), GetCount() + count );
267
268 int n = wxNOT_FOUND;
269
270 for( unsigned int i = 0; i < count; i++ )
271 {
272 LVITEM newItem;
273 wxZeroMemory(newItem);
274 newItem.iItem = pos + i;
275 n = ListView_InsertItem( (HWND)GetHWND(), & newItem );
276 wxCHECK_MSG( n != -1, -1, wxT("Item not added") );
277 SetString( n, items[i] );
278 m_itemsClientData.Insert(NULL, n);
279
280 AssignNewItemClientData(n, clientData, i, type);
281 }
282
283 return n;
284 }
285
286 void wxCheckListBox::DoSetFirstItem(int n)
287 {
288 int pos = ListView_GetTopIndex( (HWND)GetHWND() );
289 if(pos == n) return;
290 POINT ppt;
291 BOOL ret = ListView_GetItemPosition( (HWND)GetHWND(), n, &ppt );
292 wxCHECK_RET( ret == TRUE, wxT("Broken DoSetFirstItem") );
293 ListView_Scroll( (HWND)GetHWND(), 0, 0 );
294 ListView_Scroll( (HWND)GetHWND(), 0, ppt.y );
295 }
296
297 void wxCheckListBox::DoSetItemClientData(unsigned int n, void* clientData)
298 {
299 m_itemsClientData.Item(n) = clientData;
300 }
301
302 void wxCheckListBox::DoSetSelection(int n, bool select)
303 {
304 ListView_SetItemState(GetHwnd(), n, select ? LVIS_SELECTED : 0, LVIS_SELECTED);
305 }
306
307 bool wxCheckListBox::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
308 {
309 // prepare the event
310 // -----------------
311
312 wxCommandEvent event(wxEVT_NULL, m_windowId);
313 event.SetEventObject(this);
314
315 wxEventType eventType = wxEVT_NULL;
316
317 NMHDR *nmhdr = (NMHDR *)lParam;
318
319 if ( nmhdr->hwndFrom == GetHwnd() )
320 {
321 // almost all messages use NM_LISTVIEW
322 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
323
324 const int iItem = nmLV->iItem;
325
326 bool processed = true;
327 switch ( nmhdr->code )
328 {
329 case LVN_ITEMCHANGED:
330 // we translate this catch all message into more interesting
331 // (and more easy to process) wxWidgets events
332
333 // first of all, we deal with the state change events only and
334 // only for valid items (item == -1 for the virtual list
335 // control)
336 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
337 {
338 // temp vars for readability
339 const UINT stOld = nmLV->uOldState;
340 const UINT stNew = nmLV->uNewState;
341
342 // Check image changed
343 if ((stOld & LVIS_STATEIMAGEMASK) != (stNew & LVIS_STATEIMAGEMASK))
344 {
345 event.SetEventType(wxEVT_CHECKLISTBOX);
346 event.SetInt(IsChecked(iItem));
347 (void) GetEventHandler()->ProcessEvent(event);
348 }
349
350 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
351 {
352 eventType = wxEVT_LISTBOX;
353
354 event.SetExtraLong( (stNew & LVIS_SELECTED) != 0 ); // is a selection
355 event.SetInt(iItem);
356 }
357 }
358
359 if ( eventType == wxEVT_NULL )
360 {
361 // not an interesting event for us
362 return false;
363 }
364
365 break;
366
367 default:
368 processed = false;
369 }
370
371 if ( !processed )
372 return wxControl::MSWOnNotify(idCtrl, lParam, result);
373 }
374 else
375 {
376 // where did this one come from?
377 return false;
378 }
379
380 // process the event
381 // -----------------
382
383 event.SetEventType(eventType);
384
385 bool processed = GetEventHandler()->ProcessEvent(event);
386 if ( processed )
387 *result = 0;
388
389 return processed;
390 }
391
392
393 #endif