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/sizer.h"
  34 #include  "wx/menuitem.h"
  35 #include  "wx/checklst.h"
  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 char *title,
  50             int x, int y, int w, int h);
  51     ~CheckListBoxFrame();
  52
  53     // notifications
  54     void OnQuit           (wxCommandEvent& event);
  55     void OnAbout          (wxCommandEvent& event);
  56     void OnListboxSelect  (wxCommandEvent& event);
  57     void OnCheckboxToggle (wxCommandEvent& event);
  58     void OnListboxDblClick(wxCommandEvent& event);
  59     void OnButtonUp       (wxCommandEvent& event);
  60     void OnButtonDown     (wxCommandEvent& event);
  61
  62 private:
  63     void OnButtonMove(bool up);
  64
  65     wxCheckListBox *m_pListBox;
  66
  67     DECLARE_EVENT_TABLE()
  68 };
  69
  70 enum
  71 {
  72     Menu_Quit = 1,
  73     Control_First = 1000,
  74     Control_Listbox,
  75     Btn_Up,
  76     Btn_Down
  77 };
  78
  79 BEGIN_EVENT_TABLE(CheckListBoxFrame, wxFrame)
  80     EVT_MENU(Menu_Quit, CheckListBoxFrame::OnQuit)
  81
  82     EVT_LISTBOX(Control_Listbox, CheckListBoxFrame::OnListboxSelect)
  83     EVT_CHECKLISTBOX(Control_Listbox, CheckListBoxFrame::OnCheckboxToggle)
  84     EVT_LISTBOX_DCLICK(Control_Listbox, CheckListBoxFrame::OnListboxDblClick)
  85
  86     EVT_BUTTON(Btn_Up, CheckListBoxFrame::OnButtonUp)
  87     EVT_BUTTON(Btn_Down, CheckListBoxFrame::OnButtonDown)
  88 END_EVENT_TABLE()
  89
  90 IMPLEMENT_APP(CheckListBoxApp);
  91
  92 // init our app: create windows
  93 bool CheckListBoxApp::OnInit(void)
  94 {
  95     CheckListBoxFrame *pFrame = new CheckListBoxFrame
  96                                     (
  97                                      NULL,
  98                                      "wxWindows Checklistbox Sample",
  99                                      50, 50, 480, 320
 100                                     );
 101     SetTopWindow(pFrame);
 102
 103     return TRUE;
 104 }
 105
 106 // main frame constructor
 107 CheckListBoxFrame::CheckListBoxFrame(wxFrame *frame,
 108         const char *title,
 109         int x, int y, int w, int h)
 110 : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
 111 {
 112     // create the status line
 113     const int widths[] = { -1, 60 };
 114     CreateStatusBar(2);
 115     SetStatusWidths(2, widths);
 116     wxLogStatus(this, _T("no selection"));
 117
 118     // Make a menubar
 119     wxMenu *file_menu = new wxMenu;
 120
 121     // construct submenu
 122     file_menu->Append(Menu_Quit, "E&xit");
 123
 124     wxMenuBar *menu_bar = new wxMenuBar;
 125     menu_bar->Append(file_menu, "&File");
 126     SetMenuBar(menu_bar);
 127
 128     // make a panel with some controls
 129     wxPanel *panel = new wxScrolledWindow(this, -1, wxPoint(0, 0),
 130                                  wxSize(400, 200), wxTAB_TRAVERSAL);
 131
 132     // check list box
 133     static const char* aszChoices[] =
 134     {
 135         "Zeroth",
 136         "First", "Second", "Third",
 137         "Fourth", "Fifth", "Sixth",
 138         "Seventh", "Eighth", "Nineth"
 139     };
 140
 141     wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
 142     unsigned int ui;
 143     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
 144         astrChoices[ui] = aszChoices[ui];
 145
 146     m_pListBox = new wxCheckListBox
 147         (
 148          panel,                 // parent
 149          Control_Listbox,       // control id
 150          wxPoint(10, 10),       // listbox poistion
 151          wxSize(400, 100),      // listbox size
 152          WXSIZEOF(aszChoices),  // number of strings
 153          astrChoices            // array of strings
 154         );
 155
 156     //m_pListBox->SetBackgroundColour(*wxGREEN);
 157
 158     delete [] astrChoices;
 159
 160     // not implemented in other ports yet
 161 #ifdef __WXMSW__
 162     // set grey background for every second entry
 163     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui += 2 ) {
 164         m_pListBox->GetItem(ui)->SetBackgroundColour(wxColor(200, 200, 200));
 165     }
 166 #endif // wxGTK
 167
 168     m_pListBox->Check(2);
 169
 170     // create buttons for moving the items around
 171     wxButton *button1 = new wxButton(panel, Btn_Up, "   &Up  ", wxPoint(420, 90));
 172     wxButton *button2 = new wxButton(panel, Btn_Down, "&Down", wxPoint(420, 120));
 173
 174
 175     wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL );
 176
 177     mainsizer->Add( m_pListBox, 1, wxGROW|wxALL, 10 );
 178
 179     wxBoxSizer *bottomsizer = new wxBoxSizer( wxHORIZONTAL );
 180
 181     bottomsizer->Add( button1, 0, wxALL, 10 );
 182     bottomsizer->Add( button2, 0, wxALL, 10 );
 183
 184     mainsizer->Add( bottomsizer, 0, wxCENTER );
 185
 186     // tell frame to make use of sizer (or constraints, if any)
 187     panel->SetAutoLayout( TRUE );
 188     panel->SetSizer( mainsizer );
 189
 190     // don't allow frame to get smaller than what the sizers tell ye
 191     mainsizer->SetSizeHints( this );
 192
 193
 194     Show(TRUE);
 195 }
 196
 197 CheckListBoxFrame::~CheckListBoxFrame()
 198 {
 199 }
 200
 201 void CheckListBoxFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 202 {
 203     Close(TRUE);
 204 }
 205
 206 void CheckListBoxFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 207 {
 208     wxMessageBox(_T("Demo of wxCheckListBox control\n"
 209                     "© Vadim Zeitlin 1998-1999"),
 210                  _T("About wxCheckListBox"),
 211                  wxICON_INFORMATION, this);
 212 }
 213
 214 void CheckListBoxFrame::OnListboxSelect(wxCommandEvent& event)
 215 {
 216     int nSel = event.GetSelection();
 217     wxLogStatus(this, _T("item %d selected (%schecked)"), nSel,
 218                       m_pListBox->IsChecked(nSel) ? _T("") : _T("not "));
 219 }
 220
 221 void CheckListBoxFrame::OnListboxDblClick(wxCommandEvent& WXUNUSED(event))
 222 {
 223     wxString strSelection;
 224     strSelection.sprintf(_T("item %d double clicked"), m_pListBox->GetSelection());
 225     wxMessageDialog dialog(this, strSelection);
 226     dialog.ShowModal();
 227 }
 228
 229 void CheckListBoxFrame::OnCheckboxToggle(wxCommandEvent& event)
 230 {
 231     unsigned int nItem = event.GetInt();
 232
 233     wxLogStatus(this, _T("item %d was %schecked"), nItem,
 234                       m_pListBox->IsChecked(nItem) ? _T("") : _T("un"));
 235 }
 236
 237 void CheckListBoxFrame::OnButtonUp(wxCommandEvent& WXUNUSED(event))
 238 {
 239     OnButtonMove(TRUE);
 240 }
 241
 242 void CheckListBoxFrame::OnButtonDown(wxCommandEvent& WXUNUSED(event))
 243 {
 244     OnButtonMove(FALSE);
 245 }
 246
 247 void CheckListBoxFrame::OnButtonMove(bool up)
 248 {
 249     int selection = m_pListBox->GetSelection();
 250     if ( selection != -1 )
 251     {
 252         wxString label = m_pListBox->GetString(selection);
 253
 254         int positionNew = up ? selection - 1 : selection + 2;
 255         if ( positionNew < 0 || positionNew > m_pListBox->Number() )
 256         {
 257             wxLogStatus(this, _T("Can't move this item %s"), up ? _T("up") : _T("down"));
 258         }
 259         else
 260         {
 261             bool wasChecked = m_pListBox->IsChecked(selection);
 262
 263             int positionOld = up ? selection + 1 : selection;
 264
 265             // insert the item
 266             m_pListBox->InsertItems(1, &label, positionNew);
 267
 268             // and delete the old one
 269             m_pListBox->Delete(positionOld);
 270
 271             int selectionNew = up ? positionNew : positionNew - 1;
 272             m_pListBox->Check(selectionNew, wasChecked);
 273             m_pListBox->SetSelection(selectionNew);
 274
 275             wxLogStatus(this, _T("Item moved %s"), up ? _T("up") : _T("down"));
 276         }
 277     }
 278     else
 279     {
 280         wxLogStatus(this, _T("Please select an item"));
 281     }
 282 }