samples/checklst/checklst.cpp

   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 #ifdef __GNUG__
  13     //#pragma implementation
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 #ifdef __WXMSW__
  28     #include  "wx/ownerdrw.h"
  29 #endif
  30
  31 #include  "wx/log.h"
  32
  33 #include  "wx/menuitem.h"
  34 #include  "wx/checklst.h"
  35
  36 // Define a new application type
  37 class CheckListBoxApp: public wxApp
  38 {
  39 public:
  40     bool OnInit();
  41 };
  42
  43 // Define a new frame type
  44 class CheckListBoxFrame : public wxFrame
  45 {
  46 public:
  47     // ctor & dtor
  48     CheckListBoxFrame(wxFrame *frame, const char *title,
  49             int x, int y, int w, int h);
  50     ~CheckListBoxFrame();
  51
  52     // notifications
  53     void OnQuit           (wxCommandEvent& event);
  54     void OnAbout          (wxCommandEvent& event);
  55     void OnListboxSelect  (wxCommandEvent& event);
  56     void OnCheckboxToggle (wxCommandEvent& event);
  57     void OnListboxDblClick(wxCommandEvent& event);
  58     void OnButtonUp       (wxCommandEvent& event);
  59     void OnButtonDown     (wxCommandEvent& event);
  60
  61 private:
  62     void OnButtonMove(bool up);
  63
  64     wxCheckListBox *m_pListBox;
  65
  66     DECLARE_EVENT_TABLE()
  67 };
  68
  69 enum
  70 {
  71     Menu_Quit = 1,
  72     Control_First = 1000,
  73     Control_Listbox,
  74     Btn_Up,
  75     Btn_Down
  76 };
  77
  78 BEGIN_EVENT_TABLE(CheckListBoxFrame, wxFrame)
  79     EVT_MENU(Menu_Quit, CheckListBoxFrame::OnQuit)
  80
  81     EVT_LISTBOX(Control_Listbox, CheckListBoxFrame::OnListboxSelect)
  82     EVT_CHECKLISTBOX(Control_Listbox, CheckListBoxFrame::OnCheckboxToggle)
  83     EVT_LISTBOX_DCLICK(Control_Listbox, CheckListBoxFrame::OnListboxDblClick)
  84
  85     EVT_BUTTON(Btn_Up, CheckListBoxFrame::OnButtonUp)
  86     EVT_BUTTON(Btn_Down, CheckListBoxFrame::OnButtonDown)
  87 END_EVENT_TABLE()
  88
  89 IMPLEMENT_APP(CheckListBoxApp);
  90
  91 // init our app: create windows
  92 bool CheckListBoxApp::OnInit(void)
  93 {
  94     CheckListBoxFrame *pFrame = new CheckListBoxFrame
  95                                     (
  96                                      NULL,
  97                                      "wxWindows Checklistbox Sample",
  98                                      50, 50, 480, 320
  99                                     );
 100     SetTopWindow(pFrame);
 101
 102     return TRUE;
 103 }
 104
 105 // main frame constructor
 106 CheckListBoxFrame::CheckListBoxFrame(wxFrame *frame,
 107         const char *title,
 108         int x, int y, int w, int h)
 109 : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
 110 {
 111     // create the status line
 112     const int widths[] = { -1, 60 };
 113     CreateStatusBar(2);
 114     SetStatusWidths(2, widths);
 115     wxLogStatus(this, _T("no selection"));
 116
 117     // Make a menubar
 118     wxMenu *file_menu = new wxMenu;
 119
 120     // construct submenu
 121     file_menu->Append(Menu_Quit, "E&xit");
 122
 123     wxMenuBar *menu_bar = new wxMenuBar;
 124     menu_bar->Append(file_menu, "&File");
 125     SetMenuBar(menu_bar);
 126
 127     // make a panel with some controls
 128     wxPanel *panel = new wxPanel(this, -1, wxPoint(0, 0),
 129                                  wxSize(400, 200), wxTAB_TRAVERSAL);
 130
 131     // check list box
 132     static const char* aszChoices[] =
 133     {
 134         "Zeroth",
 135         "First", "Second", "Third",
 136         "Fourth", "Fifth", "Sixth",
 137         "Seventh", "Eighth", "Nineth"
 138     };
 139
 140     wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
 141     unsigned int ui;
 142     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
 143         astrChoices[ui] = aszChoices[ui];
 144
 145     m_pListBox = new wxCheckListBox
 146         (
 147          panel,                 // parent
 148          Control_Listbox,       // control id
 149          wxPoint(10, 10),       // listbox poistion
 150          wxSize(400, 100),      // listbox size
 151          WXSIZEOF(aszChoices),  // number of strings
 152          astrChoices            // array of strings
 153         );
 154
 155     //m_pListBox->SetBackgroundColour(*wxGREEN);
 156
 157     delete [] astrChoices;
 158
 159     // not implemented in other ports yet
 160 #ifdef __WXMSW__
 161     // set grey background for every second entry
 162     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui += 2 ) {
 163         m_pListBox->GetItem(ui)->SetBackgroundColour(wxColor(200, 200, 200));
 164     }
 165 #endif // wxGTK
 166
 167     m_pListBox->Check(2);
 168
 169     // create buttons for moving the items around
 170     (void)new wxButton(panel, Btn_Up, "   &Up  ", wxPoint(420, 90));
 171     (void)new wxButton(panel, Btn_Down, "&Down", wxPoint(420, 120));
 172
 173     Show(TRUE);
 174 }
 175
 176 CheckListBoxFrame::~CheckListBoxFrame()
 177 {
 178 }
 179
 180 void CheckListBoxFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 181 {
 182     Close(TRUE);
 183 }
 184
 185 void CheckListBoxFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 186 {
 187     wxMessageBox(_T("Demo of wxCheckListBox control\n"
 188                     "© Vadim Zeitlin 1998-1999"),
 189                  _T("About wxCheckListBox"),
 190                  wxICON_INFORMATION, this);
 191 }
 192
 193 void CheckListBoxFrame::OnListboxSelect(wxCommandEvent& event)
 194 {
 195     int nSel = event.GetSelection();
 196     wxLogStatus(this, _T("item %d selected (%schecked)"), nSel,
 197                       m_pListBox->IsChecked(nSel) ? _T("") : _T("not "));
 198 }
 199
 200 void CheckListBoxFrame::OnListboxDblClick(wxCommandEvent& WXUNUSED(event))
 201 {
 202     wxString strSelection;
 203     strSelection.sprintf(_T("item %d double clicked"), m_pListBox->GetSelection());
 204     wxMessageDialog dialog(this, strSelection);
 205     dialog.ShowModal();
 206 }
 207
 208 void CheckListBoxFrame::OnCheckboxToggle(wxCommandEvent& event)
 209 {
 210     unsigned int nItem = event.GetInt();
 211
 212     wxLogStatus(this, _T("item %d was %schecked"), nItem,
 213                       m_pListBox->IsChecked(nItem) ? _T("") : _T("un"));
 214 }
 215
 216 void CheckListBoxFrame::OnButtonUp(wxCommandEvent& WXUNUSED(event))
 217 {
 218     OnButtonMove(TRUE);
 219 }
 220
 221 void CheckListBoxFrame::OnButtonDown(wxCommandEvent& WXUNUSED(event))
 222 {
 223     OnButtonMove(FALSE);
 224 }
 225
 226 void CheckListBoxFrame::OnButtonMove(bool up)
 227 {
 228     int selection = m_pListBox->GetSelection();
 229     if ( selection != -1 )
 230     {
 231         wxString label = m_pListBox->GetString(selection);
 232
 233         int positionNew = up ? selection - 1 : selection + 2;
 234         if ( positionNew < 0 || positionNew > m_pListBox->Number() )
 235         {
 236             wxLogStatus(this, _T("Can't move this item %s"), up ? _T("up") : _T("down"));
 237         }
 238         else
 239         {
 240             bool wasChecked = m_pListBox->IsChecked(selection);
 241
 242             int positionOld = up ? selection + 1 : selection;
 243
 244             // insert the item
 245             m_pListBox->InsertItems(1, &label, positionNew);
 246
 247             // and delete the old one
 248             m_pListBox->Delete(positionOld);
 249
 250             int selectionNew = up ? positionNew : positionNew - 1;
 251             m_pListBox->Check(selectionNew, wasChecked);
 252             m_pListBox->SetSelection(selectionNew);
 253
 254             wxLogStatus(this, _T("Item moved %s"), up ? _T("up") : _T("down"));
 255         }
 256     }
 257     else
 258     {
 259         wxLogStatus(this, _T("Please select an item"));
 260     }
 261 }