samples/ownerdrw/ownerdrw.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        ownerdrw.cpp
   3 // Purpose:     Owner-draw sample, for Windows
   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 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  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 #include  "wx/ownerdrw.h"
  28 #include  "wx/menuitem.h"
  29 #include  "wx/checklst.h"
  30
  31 // Define a new application type
  32 class OwnerDrawnApp: public wxApp
  33 {
  34 public:
  35     bool OnInit();
  36 };
  37
  38 // Define a new frame type
  39 class OwnerDrawnFrame : public wxFrame
  40 {
  41 public:
  42     // ctor & dtor
  43     OwnerDrawnFrame(wxFrame *frame, const wxChar *title, int x, int y, int w, int h);
  44     ~OwnerDrawnFrame(){};
  45
  46     // notifications
  47     void OnQuit             (wxCommandEvent& event);
  48     void OnMenuToggle       (wxCommandEvent& event);
  49     void OnAbout            (wxCommandEvent& event);
  50     void OnListboxSelect    (wxCommandEvent& event);
  51     void OnCheckboxToggle   (wxCommandEvent& event);
  52     void OnListboxDblClick  (wxCommandEvent& event);
  53     bool OnClose            ()                        { return true; }
  54
  55     DECLARE_EVENT_TABLE()
  56
  57 private:
  58     void InitMenu();
  59
  60     wxCheckListBox *m_pListBox;
  61     wxMenuItem *pAboutItem;
  62 };
  63
  64 enum
  65 {
  66     Menu_Quit = 1,
  67     Menu_First = 100,
  68     Menu_Test1, Menu_Test2, Menu_Test3,
  69     Menu_Bitmap, Menu_Bitmap2,
  70     Menu_Submenu, Menu_Sub1, Menu_Sub2, Menu_Sub3,
  71     Menu_Toggle, Menu_About,
  72     Control_First = 1000,
  73     Control_Listbox, Control_Listbox2
  74 };
  75
  76 BEGIN_EVENT_TABLE(OwnerDrawnFrame, wxFrame)
  77     EVT_MENU(Menu_Toggle, OwnerDrawnFrame::OnMenuToggle)
  78     EVT_MENU(Menu_About, OwnerDrawnFrame::OnAbout)
  79     EVT_MENU(Menu_Quit, OwnerDrawnFrame::OnQuit)
  80     EVT_LISTBOX(Control_Listbox, OwnerDrawnFrame::OnListboxSelect)
  81     EVT_CHECKLISTBOX(Control_Listbox, OwnerDrawnFrame::OnCheckboxToggle)
  82     EVT_COMMAND(Control_Listbox, wxEVT_COMMAND_LISTBOX_DOUBLECLICKED,
  83                 OwnerDrawnFrame::OnListboxDblClick)
  84 END_EVENT_TABLE()
  85
  86 IMPLEMENT_APP(OwnerDrawnApp)
  87
  88 // init our app: create windows
  89 bool OwnerDrawnApp::OnInit(void)
  90 {
  91     if ( !wxApp::OnInit() )
  92         return false;
  93
  94     OwnerDrawnFrame *pFrame
  95         = new OwnerDrawnFrame(NULL, _T("wxWidgets Ownerdraw Sample"),
  96                               50, 50, 450, 340);
  97
  98     SetTopWindow(pFrame);
  99
 100     return true;
 101 }
 102
 103 // create the menu bar for the main frame
 104 void OwnerDrawnFrame::InitMenu()
 105 {
 106     // Make a menubar
 107     wxMenuItem *pItem;
 108     wxMenu *file_menu = new wxMenu;
 109
 110 #ifndef __WXUNIVERSAL__
 111     wxMenu *sub_menu  = new wxMenu;
 112
 113     // vars used for menu construction
 114     wxFont fontLarge(18, wxROMAN, wxNORMAL, wxBOLD, false),
 115            fontUlined(12, wxDEFAULT, wxNORMAL, wxNORMAL, true),
 116            fontItalic(12, wxMODERN, wxITALIC, wxBOLD, false),
 117            // should be at least of the size of bitmaps
 118            fontBmp(14, wxDEFAULT, wxNORMAL, wxNORMAL, false);
 119
 120     // sorry for my artistic skills...
 121     wxBitmap bmpBell(_T("bell")),
 122              bmpSound(_T("sound")),
 123              bmpNoSound(_T("nosound")),
 124              bmpInfo(_T("info")),
 125              bmpInfo_mono(_T("info_mono"));
 126
 127     // construct submenu
 128     pItem = new wxMenuItem(sub_menu, Menu_Sub1, _T("Submenu &first"), _T("large"));
 129
 130     pItem->SetFont(fontLarge);
 131     sub_menu->Append(pItem);
 132
 133     pItem = new wxMenuItem(sub_menu, Menu_Sub2, _T("Submenu &second"), _T("italic"),
 134                            wxITEM_CHECK);
 135     pItem->SetFont(fontItalic);
 136     sub_menu->Append(pItem);
 137
 138     pItem = new wxMenuItem(sub_menu, Menu_Sub3, _T("Submenu &third"), _T("underlined"),
 139                            wxITEM_CHECK);
 140     pItem->SetFont(fontUlined);
 141     sub_menu->Append(pItem);
 142
 143     // construct menu
 144     pItem = new wxMenuItem(file_menu, Menu_Test1, _T("&Uncheckable"), _T("red item"));
 145     pItem->SetFont(*wxITALIC_FONT);
 146     pItem->SetTextColour(wxColor(255, 0, 0));
 147     file_menu->Append(pItem);
 148
 149     pItem = new wxMenuItem(file_menu, Menu_Test2, _T("&Checkable"),
 150                            _T("checkable item"), wxITEM_CHECK);
 151     pItem->SetFont(*wxSMALL_FONT);
 152     file_menu->Append(pItem);
 153     file_menu->Check(Menu_Test2, true);
 154
 155     pItem = new wxMenuItem(file_menu, Menu_Test3, _T("&Disabled"), _T("disabled item"));
 156     pItem->SetFont(*wxNORMAL_FONT);
 157     file_menu->Append(pItem);
 158     file_menu->Enable(Menu_Test3, false);
 159
 160     file_menu->AppendSeparator();
 161
 162     pItem = new wxMenuItem(file_menu, Menu_Bitmap, _T("&Bell"),
 163                            _T("check/uncheck me!"), wxITEM_CHECK);
 164     pItem->SetFont(fontBmp);
 165     pItem->SetBitmaps(bmpBell);
 166     file_menu->Append(pItem);
 167
 168     pItem = new wxMenuItem(file_menu, Menu_Bitmap2, _T("So&und"),
 169                            _T("icon changes!"), wxITEM_CHECK);
 170     pItem->SetFont(fontBmp);
 171     pItem->SetBitmaps(bmpSound, bmpNoSound);
 172     file_menu->Append(pItem);
 173
 174     file_menu->AppendSeparator();
 175
 176     pItem = new wxMenuItem(file_menu, Menu_Submenu, _T("&Sub menu"), _T(""),
 177                            wxITEM_CHECK, sub_menu);
 178     pItem->SetFont(*wxSWISS_FONT);
 179     file_menu->Append(pItem);
 180
 181     file_menu->AppendSeparator();
 182     pItem = new wxMenuItem(file_menu, Menu_Toggle, _T("&Disable/Enable\tCtrl+D"),
 183                           _T("enables/disables the About-Item"), wxITEM_NORMAL);
 184     pItem->SetFont(*wxNORMAL_FONT);
 185     file_menu->Append(pItem);
 186
 187     // Of course Ctrl+RatherLongAccel will not work in this example:
 188     pAboutItem = new wxMenuItem(file_menu, Menu_About, _T("&About\tCtrl+RatherLongAccel"),
 189                                 _T("display program information"), wxITEM_NORMAL);
 190     pAboutItem->SetBitmap(bmpInfo);
 191     pAboutItem->SetDisabledBitmap(bmpInfo_mono);
 192     file_menu->Append(pAboutItem);
 193
 194     file_menu->AppendSeparator();
 195 #endif
 196
 197     pItem = new wxMenuItem(file_menu, Menu_Quit, _T("&Quit"), _T("Normal item"),
 198                            wxITEM_NORMAL);
 199     file_menu->Append(pItem);
 200
 201     wxMenuBar *menu_bar = new wxMenuBar;
 202
 203     menu_bar->Append(file_menu, _T("&File"));
 204     SetMenuBar(menu_bar);
 205 }
 206
 207 // main frame constructor
 208 OwnerDrawnFrame::OwnerDrawnFrame(wxFrame *frame, const wxChar *title,
 209                                  int x, int y, int w, int h)
 210          : wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h))
 211 {
 212     // set the icon
 213     SetIcon(wxIcon(_T("mondrian")));
 214
 215     // create the menu
 216     InitMenu();
 217
 218 #if wxUSE_STATUSBAR
 219     // create the status line
 220     const int widths[] = { -1, 60 };
 221     CreateStatusBar(2);
 222     SetStatusWidths(2, widths);
 223     SetStatusText(_T("no selection"), 0);
 224 #endif // wxUSE_STATUSBAR
 225
 226     // make a panel with some controls
 227     wxPanel *pPanel = new wxPanel(this);
 228
 229     // check list box
 230     static const wxChar* aszChoices[] = { _T("Hello"), _T("world"), _T("and"),
 231                                           _T("goodbye"), _T("cruel"), _T("world"),
 232                                           _T("-------"), _T("owner-drawn"), _T("listbox") };
 233
 234     wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
 235     unsigned int ui;
 236     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
 237         astrChoices[ui] = aszChoices[ui];
 238
 239     m_pListBox = new wxCheckListBox
 240         (
 241             pPanel,             // parent
 242             Control_Listbox,    // control id
 243             wxPoint(10, 10),    // listbox position
 244             wxSize(200, 200),   // listbox size
 245             WXSIZEOF(aszChoices), // number of strings
 246             astrChoices         // array of strings
 247         );
 248
 249     delete [] astrChoices;
 250
 251     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui += 2 )
 252     {
 253 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 254         m_pListBox->GetItem(ui)->SetBackgroundColour(wxColor(200, 200, 200));
 255 #endif
 256     }
 257
 258     m_pListBox->Check(2);
 259
 260     // normal (but owner-drawn) listbox
 261     static const wxChar* aszColors[] = { _T("Red"), _T("Blue"), _T("Pink"),
 262                                          _T("Green"), _T("Yellow"),
 263                                          _T("Black"), _T("Violet")  };
 264
 265     astrChoices = new wxString[WXSIZEOF(aszColors)];
 266
 267     for ( ui = 0; ui < WXSIZEOF(aszColors); ui++ )
 268     {
 269         astrChoices[ui] = aszColors[ui];
 270     }
 271
 272     wxListBox *pListBox = new wxListBox
 273         (
 274             pPanel,              // parent
 275             Control_Listbox2,    // control id
 276             wxPoint(220, 10),    // listbox position
 277             wxSize(200, 200),    // listbox size
 278             WXSIZEOF(aszColors), // number of strings
 279             astrChoices,         // array of strings
 280             wxLB_OWNERDRAW       // owner-drawn
 281         );
 282
 283 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 284
 285     struct { unsigned char r, g, b; } aColors[] =
 286         {
 287             {255,0,0}, {0,0,255}, {255,128,192},
 288             {0,255,0}, {255,255,128},
 289             {0,0,0}, {128,0,255}
 290         };
 291
 292     for ( ui = 0; ui < WXSIZEOF(aszColors); ui++ )
 293     {
 294         pListBox->GetItem(ui)->SetTextColour(wxColor(aColors[ui].r,
 295                                                      aColors[ui].g,
 296                                                      aColors[ui].b));
 297         // yellow on white is horrible...
 298         if ( ui == 4 )
 299         {
 300             pListBox->GetItem(ui)->SetBackgroundColour(wxColor(0, 0, 0));
 301         }
 302     }
 303
 304 #else
 305     wxUnusedVar( pListBox );
 306 #endif
 307
 308     delete[] astrChoices;
 309
 310     Show(true);
 311 }
 312
 313 void OwnerDrawnFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 314 {
 315     Close(true);
 316 }
 317
 318 void OwnerDrawnFrame::OnMenuToggle(wxCommandEvent& WXUNUSED(event))
 319 {
 320     // This example shows the use of bitmaps in ownerdrawn menuitems and is not a good
 321     // example on how to enable and disable menuitems - this should be done with the help of
 322     // EVT_UPDATE_UI and EVT_UPDATE_UI_RANGE !
 323     pAboutItem->Enable( pAboutItem->IsEnabled() ? false : true );
 324 }
 325
 326 void OwnerDrawnFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 327 {
 328     wxMessageDialog dialog(this,
 329                            _T("Demo of owner-drawn controls\n"),
 330                            _T("About wxOwnerDrawn"), wxYES_NO | wxCANCEL);
 331     dialog.ShowModal();
 332 }
 333
 334 void OwnerDrawnFrame::OnListboxSelect(wxCommandEvent& event)
 335 {
 336 #if wxUSE_STATUSBAR
 337     wxString strSelection;
 338     unsigned int nSel = event.GetSelection();
 339     strSelection.Printf(wxT("item %d selected (%schecked)"), nSel,
 340                         m_pListBox->IsChecked(nSel) ? wxT("") : wxT("not "));
 341     SetStatusText(strSelection);
 342 #else
 343     wxUnusedVar(event);
 344 #endif // wxUSE_STATUSBAR
 345 }
 346
 347 void OwnerDrawnFrame::OnListboxDblClick(wxCommandEvent& WXUNUSED(event))
 348 {
 349     wxString strSelection;
 350     strSelection.Printf(wxT("item %d double clicked"),
 351                         m_pListBox->GetSelection());
 352     wxMessageDialog dialog(this, strSelection);
 353     dialog.ShowModal();
 354 }
 355
 356 void OwnerDrawnFrame::OnCheckboxToggle(wxCommandEvent& event)
 357 {
 358 #if wxUSE_STATUSBAR
 359     wxString strSelection;
 360     unsigned int nItem = event.GetInt();
 361     strSelection.Printf(wxT("item %d was %schecked"), nItem,
 362                         m_pListBox->IsChecked(nItem) ? wxT("") : wxT("un"));
 363     SetStatusText(strSelection);
 364 #else
 365     wxUnusedVar(event);
 366 #endif // wxUSE_STATUSBAR
 367 }