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Correct wxCheckListBox insertion.
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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: checklst.cpp
3 // Purpose: wxCheckListBox sample
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 13.11.97
7 // RCS-ID: $Id$
8 // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
9 // Licence: wxWindows license
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
14
15 #ifdef __BORLANDC__
16 #pragma hdrstop
17 #endif
18
19 #ifndef WX_PRECOMP
20 #include "wx/wx.h"
21 #endif
22
23 #ifdef __WXMSW__
24 #include "wx/ownerdrw.h"
25 #endif
26
27 #include "wx/log.h"
28
29 #include "wx/sizer.h"
30 #include "wx/menuitem.h"
31 #include "wx/checklst.h"
32
33 #if !wxUSE_CHECKLISTBOX
34 #error "This sample can't be built without wxUSE_CHECKLISTBOX"
35 #endif // wxUSE_CHECKLISTBOX
36
37 // Define a new application type
38 class CheckListBoxApp: public wxApp
39 {
40 public:
41 bool OnInit();
42 };
43
44 // Define a new frame type
45 class CheckListBoxFrame : public wxFrame
46 {
47 public:
48 // ctor & dtor
49 CheckListBoxFrame(wxFrame *frame, const wxChar *title,
50 int x, int y, int w, int h);
51 virtual ~CheckListBoxFrame(){};
52
53 // notifications
54 void OnQuit(wxCommandEvent& event);
55 void OnAbout(wxCommandEvent& event);
56
57 void OnCheckFirstItem(wxCommandEvent& event);
58 void OnUncheckFirstItem(wxCommandEvent& event);
59 void OnToggleFirstItem(wxCommandEvent& event);
60 void OnToggleSelection(wxCommandEvent& event);
61 void OnAddItems(wxCommandEvent& event);
62
63 void OnListboxSelect(wxCommandEvent& event);
64 void OnCheckboxToggle(wxCommandEvent& event);
65 void OnListboxDblClick(wxCommandEvent& event);
66
67 void OnButtonUp(wxCommandEvent& event);
68 void OnButtonDown(wxCommandEvent& event);
69
70 private:
71 void CreateCheckListbox(long flags = 0);
72
73 void OnButtonMove(bool up);
74
75 void AdjustColour(size_t index);
76
77 wxPanel *m_panel;
78
79 wxCheckListBox *m_pListBox;
80
81 DECLARE_EVENT_TABLE()
82 };
83
84 enum
85 {
86 Menu_About = 100,
87 Menu_Quit,
88
89 Menu_CheckFirst,
90 Menu_UncheckFirst,
91 Menu_ToggleFirst,
92 Menu_Selection,
93 Menu_AddItems,
94
95 Control_First = 1000,
96 Control_Listbox,
97 Btn_Up,
98 Btn_Down
99 };
100
101 BEGIN_EVENT_TABLE(CheckListBoxFrame, wxFrame)
102 EVT_MENU(Menu_About, CheckListBoxFrame::OnAbout)
103 EVT_MENU(Menu_Quit, CheckListBoxFrame::OnQuit)
104
105 EVT_MENU(Menu_CheckFirst, CheckListBoxFrame::OnCheckFirstItem)
106 EVT_MENU(Menu_UncheckFirst, CheckListBoxFrame::OnUncheckFirstItem)
107 EVT_MENU(Menu_ToggleFirst, CheckListBoxFrame::OnToggleFirstItem)
108 EVT_MENU(Menu_Selection, CheckListBoxFrame::OnToggleSelection)
109 EVT_MENU(Menu_AddItems, CheckListBoxFrame::OnAddItems)
110
111 EVT_LISTBOX(Control_Listbox, CheckListBoxFrame::OnListboxSelect)
112 EVT_CHECKLISTBOX(Control_Listbox, CheckListBoxFrame::OnCheckboxToggle)
113 EVT_LISTBOX_DCLICK(Control_Listbox, CheckListBoxFrame::OnListboxDblClick)
114
115 EVT_BUTTON(Btn_Up, CheckListBoxFrame::OnButtonUp)
116 EVT_BUTTON(Btn_Down, CheckListBoxFrame::OnButtonDown)
117 END_EVENT_TABLE()
118
119 IMPLEMENT_APP(CheckListBoxApp);
120
121 // init our app: create windows
122 bool CheckListBoxApp::OnInit(void)
123 {
124 CheckListBoxFrame *pFrame = new CheckListBoxFrame
125 (
126 NULL,
127 _T("wxWidgets Checklistbox Sample"),
128 50, 50, 480, 320
129 );
130 SetTopWindow(pFrame);
131
132 return true;
133 }
134
135 // main frame constructor
136 CheckListBoxFrame::CheckListBoxFrame(wxFrame *frame,
137 const wxChar *title,
138 int x, int y, int w, int h)
139 : wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h))
140 {
141 #if wxUSE_STATUSBAR
142 // create the status line
143 const int widths[] = { -1, 60 };
144 CreateStatusBar(2);
145 SetStatusWidths(2, widths);
146 wxLogStatus(this, _T("no selection"));
147 #endif // wxUSE_STATUSBAR
148
149 // Make a menubar
150 // --------------
151
152 // file submenu
153 wxMenu *menuFile = new wxMenu;
154 menuFile->Append(Menu_About, _T("&About...\tF1"));
155 menuFile->AppendSeparator();
156 menuFile->Append(Menu_Quit, _T("E&xit\tAlt-X"));
157
158 // listbox submenu
159 wxMenu *menuList = new wxMenu;
160 menuList->Append(Menu_CheckFirst, _T("Check the first item\tCtrl-C"));
161 menuList->Append(Menu_UncheckFirst, _T("Uncheck the first item\tCtrl-U"));
162 menuList->Append(Menu_ToggleFirst, _T("Toggle the first item\tCtrl-T"));
163 menuList->AppendSeparator();
164 menuList->AppendCheckItem(Menu_AddItems, _T("Add more items\tCtrl-A"));
165 menuList->AppendSeparator();
166 menuList->AppendCheckItem(Menu_Selection, _T("Multiple selection\tCtrl-M"));
167
168 // put it all together
169 wxMenuBar *menu_bar = new wxMenuBar;
170 menu_bar->Append(menuFile, _T("&File"));
171 menu_bar->Append(menuList, _T("&List"));
172 SetMenuBar(menu_bar);
173
174 // make a panel with some controls
175 m_panel = new wxPanel(this, wxID_ANY, wxPoint(0, 0),
176 wxSize(400, 200), wxTAB_TRAVERSAL);
177
178 CreateCheckListbox();
179
180 // create buttons for moving the items around
181 wxButton *button1 = new wxButton(m_panel, Btn_Up, _T(" &Up "), wxPoint(420, 90));
182 wxButton *button2 = new wxButton(m_panel, Btn_Down, _T("&Down"), wxPoint(420, 120));
183
184
185 wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL );
186
187 mainsizer->Add( m_pListBox, 1, wxGROW|wxALL, 10 );
188
189 wxBoxSizer *bottomsizer = new wxBoxSizer( wxHORIZONTAL );
190
191 bottomsizer->Add( button1, 0, wxALL, 10 );
192 bottomsizer->Add( button2, 0, wxALL, 10 );
193
194 mainsizer->Add( bottomsizer, 0, wxCENTER );
195
196 // tell frame to make use of sizer (or constraints, if any)
197 m_panel->SetAutoLayout( true );
198 m_panel->SetSizer( mainsizer );
199
200 // don't allow frame to get smaller than what the sizers tell ye
201 mainsizer->SetSizeHints( this );
202
203 Show(true);
204 }
205
206 void CheckListBoxFrame::CreateCheckListbox(long flags)
207 {
208 // check list box
209 static const wxChar *aszChoices[] =
210 {
211 _T("Zeroth"),
212 _T("First"), _T("Second"), _T("Third"),
213 _T("Fourth"), _T("Fifth"), _T("Sixth"),
214 _T("Seventh"), _T("Eighth"), _T("Nineth")
215 };
216
217 wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
218 unsigned int ui;
219 for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
220 astrChoices[ui] = aszChoices[ui];
221
222 m_pListBox = new wxCheckListBox
223 (
224 m_panel, // parent
225 Control_Listbox, // control id
226 wxPoint(10, 10), // listbox poistion
227 wxSize(400, 100), // listbox size
228 WXSIZEOF(aszChoices), // number of strings
229 astrChoices, // array of strings
230 flags
231 );
232
233 //m_pListBox->SetBackgroundColour(*wxGREEN);
234
235 delete [] astrChoices;
236
237 // set grey background for every second entry
238 for ( ui = 0; ui < WXSIZEOF(aszChoices); ui += 2 ) {
239 AdjustColour(ui);
240 }
241
242 m_pListBox->Check(2);
243 m_pListBox->Select(3);
244 }
245
246 void CheckListBoxFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
247 {
248 Close(true);
249 }
250
251 void CheckListBoxFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
252 {
253 wxMessageBox(wxT("Demo of wxCheckListBox control\n(c) Vadim Zeitlin 1998-2002"),
254 wxT("About wxCheckListBox"),
255 wxICON_INFORMATION, this);
256 }
257
258 void CheckListBoxFrame::OnCheckFirstItem(wxCommandEvent& WXUNUSED(event))
259 {
260 if ( !m_pListBox->IsEmpty() )
261 m_pListBox->Check(0);
262 }
263
264 void CheckListBoxFrame::OnUncheckFirstItem(wxCommandEvent& WXUNUSED(event))
265 {
266 if ( !m_pListBox->IsEmpty() )
267 m_pListBox->Check(0, false);
268 }
269
270 void CheckListBoxFrame::OnToggleFirstItem(wxCommandEvent& WXUNUSED(event))
271 {
272 if ( !m_pListBox->IsEmpty() )
273 m_pListBox->Check(0, !m_pListBox->IsChecked(0));
274 }
275
276 void CheckListBoxFrame::OnAddItems(wxCommandEvent& WXUNUSED(event))
277 {
278 static size_t s_nItem = 0;
279 wxArrayString items;
280 items.Add(wxString::Format(_T("New item %lu"), (unsigned long)++s_nItem));
281 items.Add(wxString::Format(_T("New item %lu"), (unsigned long)++s_nItem));
282 items.Add(wxString::Format(_T("New item %lu"), (unsigned long)++s_nItem));
283
284 m_pListBox->InsertItems(items, 0);//m_pListBox->GetCount());
285 }
286
287 void CheckListBoxFrame::OnToggleSelection(wxCommandEvent& event)
288 {
289 wxSizer *sizer = m_panel->GetSizer();
290
291 sizer->Detach( m_pListBox );
292 delete m_pListBox;
293
294 CreateCheckListbox(event.IsChecked() ? wxLB_EXTENDED : 0);
295
296 sizer->Insert(0, m_pListBox, 1, wxGROW | wxALL, 10);
297
298 m_panel->Layout();
299 }
300
301 void CheckListBoxFrame::OnListboxSelect(wxCommandEvent& event)
302 {
303 int nSel = event.GetSelection();
304 wxLogStatus(this, wxT("Item %d selected (%schecked)"), nSel,
305 m_pListBox->IsChecked(nSel) ? wxT("") : wxT("not "));
306 }
307
308 void CheckListBoxFrame::OnListboxDblClick(wxCommandEvent& WXUNUSED(event))
309 {
310 int selection = -1;
311 if(m_pListBox->GetWindowStyle() & wxLB_EXTENDED)
312 {
313 wxArrayInt list;
314 m_pListBox->GetSelections(list);
315 if(list.Count()==1)
316 {
317 selection = list.Item(0);
318 }
319 }
320 else
321 {
322 selection = m_pListBox->GetSelection();
323 }
324
325 wxString strSelection;
326 if ( selection != -1 )
327 {
328 strSelection.Printf(wxT("Item %d double clicked"), selection);
329 }
330 else
331 {
332 strSelection = wxT("List double clicked in multiple selection mode");
333 }
334 wxMessageDialog dialog(this, strSelection, wxT("wxCheckListBox message"), wxICON_INFORMATION);
335 dialog.ShowModal();
336 }
337
338 void CheckListBoxFrame::OnCheckboxToggle(wxCommandEvent& event)
339 {
340 unsigned int nItem = event.GetInt();
341
342 wxLogStatus(this, wxT("item %d was %schecked"), nItem,
343 m_pListBox->IsChecked(nItem) ? wxT("") : wxT("un"));
344 }
345
346 void CheckListBoxFrame::OnButtonUp(wxCommandEvent& WXUNUSED(event))
347 {
348 OnButtonMove(true);
349 }
350
351 void CheckListBoxFrame::OnButtonDown(wxCommandEvent& WXUNUSED(event))
352 {
353 OnButtonMove(false);
354 }
355
356 void CheckListBoxFrame::OnButtonMove(bool up)
357 {
358 int selection = -1;
359 if(m_pListBox->GetWindowStyle() & wxLB_EXTENDED)
360 {
361 wxArrayInt list;
362 m_pListBox->GetSelections(list);
363 if(list.Count()==1)
364 {
365 selection = list.Item(0);
366 }
367 }
368 else
369 {
370 selection = m_pListBox->GetSelection();
371 }
372 if ( selection != -1 )
373 {
374 wxString label = m_pListBox->GetString(selection);
375
376 int positionNew = up ? selection - 1 : selection + 2;
377 if ( positionNew < 0 || positionNew > m_pListBox->GetCount() )
378 {
379 wxLogStatus(this, wxT("Can't move this item %s"), up ? wxT("up") : wxT("down"));
380 }
381 else
382 {
383 bool wasChecked = m_pListBox->IsChecked(selection);
384
385 int positionOld = up ? selection + 1 : selection;
386
387 // insert the item
388 m_pListBox->InsertItems(1, &label, positionNew);
389
390 // and delete the old one
391 m_pListBox->Delete(positionOld);
392
393 int selectionNew = up ? positionNew : positionNew - 1;
394 m_pListBox->Check(selectionNew, wasChecked);
395 m_pListBox->SetSelection(selectionNew);
396
397 AdjustColour(selection);
398 AdjustColour(selectionNew);
399
400 wxLogStatus(this, wxT("Item moved %s"), up ? wxT("up") : wxT("down"));
401 }
402 }
403 else
404 {
405 wxLogStatus(this, wxT("Please select single item"));
406 }
407 }
408
409 // not implemented in ports other than (native) MSW yet
410 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
411 void CheckListBoxFrame::AdjustColour(size_t index)
412 {
413 // even items have grey backround, odd ones - white
414 unsigned char c = index % 2 ? 255 : 200;
415 m_pListBox->GetItem(index)->SetBackgroundColour(wxColor(c, c, c));
416 }
417 #else
418 void CheckListBoxFrame::AdjustColour(size_t WXUNUSED(index))
419 {
420 }
421 #endif // wxMSW