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