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/msw/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("wxWindows 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     wxMenu *file_menu = new wxMenu,
 105            *sub_menu  = new wxMenu;
 106
 107     // vars used for menu construction
 108     wxMenuItem *pItem;
 109     wxFont fontLarge(18, wxROMAN, wxNORMAL, wxBOLD, FALSE),
 110            fontUlined(12, wxDEFAULT, wxNORMAL, wxNORMAL, TRUE),
 111            fontItalic(12, wxMODERN, wxITALIC, wxBOLD, FALSE),
 112            // should be at least of the size of bitmaps
 113            fontBmp(14, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE);
 114
 115     // sorry for my artistic skills...
 116     wxBitmap bmpBell(_T("bell")), bmpSound(_T("sound")), bmpNoSound(_T("nosound"));
 117     wxBitmap bmpInfo(_T("info")), bmpInfo_mono(_T("info_mono"));
 118
 119     // construct submenu
 120     pItem = new wxMenuItem(sub_menu, Menu_Sub1, _T("Submenu &first"), _T("large"));
 121
 122     pItem->SetFont(fontLarge);
 123     sub_menu->Append(pItem);
 124
 125     pItem = new wxMenuItem(sub_menu, Menu_Sub2, _T("Submenu &second"), _T("italic"),
 126                            wxITEM_CHECK);
 127     pItem->SetFont(fontItalic);
 128     sub_menu->Append(pItem);
 129
 130     pItem = new wxMenuItem(sub_menu, Menu_Sub3, _T("Submenu &third"), _T("underlined"),
 131                            wxITEM_CHECK);
 132     pItem->SetFont(fontUlined);
 133     sub_menu->Append(pItem);
 134
 135     // construct menu
 136     pItem = new wxMenuItem(file_menu, Menu_Test1, _T("&Uncheckable"), _T("red item"));
 137     pItem->SetFont(*wxITALIC_FONT);
 138     pItem->SetTextColour(wxColor(255, 0, 0));
 139     pItem->SetMarginWidth(23);
 140     file_menu->Append(pItem);
 141
 142     pItem = new wxMenuItem(file_menu, Menu_Test2, _T("&Checkable"),
 143                            _T("checkable item"), wxITEM_CHECK);
 144     pItem->SetFont(*wxSMALL_FONT);
 145     file_menu->Append(pItem);
 146     file_menu->Check(Menu_Test2, TRUE);
 147
 148     pItem = new wxMenuItem(file_menu, Menu_Test3, _T("&Disabled"), _T("disabled item"));
 149     pItem->SetFont(*wxNORMAL_FONT);
 150     file_menu->Append(pItem);
 151     file_menu->Enable(Menu_Test3, FALSE);
 152
 153     file_menu->AppendSeparator();
 154
 155     pItem = new wxMenuItem(file_menu, Menu_Bitmap, _T("&Bell"),
 156                            _T("check/uncheck me!"), wxITEM_CHECK);
 157     pItem->SetFont(fontBmp);
 158     pItem->SetBitmaps(bmpBell);
 159     file_menu->Append(pItem);
 160
 161     pItem = new wxMenuItem(file_menu, Menu_Bitmap2, _T("So&und"),
 162                            _T("icon changes!"), wxITEM_CHECK);
 163     pItem->SetFont(fontBmp);
 164     pItem->SetBitmaps(bmpSound, bmpNoSound);
 165     file_menu->Append(pItem);
 166
 167     file_menu->AppendSeparator();
 168
 169     pItem = new wxMenuItem(file_menu, Menu_Submenu, _T("&Sub menu"), _T(""),
 170                            wxITEM_CHECK, sub_menu);
 171     pItem->SetFont(*wxSWISS_FONT);
 172     file_menu->Append(pItem);
 173
 174     file_menu->AppendSeparator();
 175     pItem = new wxMenuItem(file_menu, Menu_Toggle, _T("&Disable/Enable\tCtrl+D"),
 176                           _T("enables/disables the About-Item"), wxITEM_NORMAL);
 177     pItem->SetFont(*wxNORMAL_FONT);
 178     file_menu->Append(pItem);
 179
 180     // Of course Ctrl+RatherLongAccel will not work in this example:
 181     pAboutItem = new wxMenuItem(file_menu, Menu_About, _T("&About\tCtrl+RatherLongAccel"),
 182                                 _T("display program information"), wxITEM_NORMAL);
 183     pAboutItem->SetBitmap(bmpInfo);
 184     pAboutItem->SetDisabledBitmap(bmpInfo_mono);
 185     pAboutItem->SetOwnerDrawn(TRUE);
 186     file_menu->Append(pAboutItem);
 187
 188     file_menu->AppendSeparator();
 189     pItem = new wxMenuItem(file_menu, Menu_Quit, _T("&Quit"), _T("Normal item"),
 190                            wxITEM_NORMAL);
 191     pItem->SetFont(*wxNORMAL_FONT);
 192     file_menu->Append(pItem);
 193
 194     wxMenuBar *menu_bar = new wxMenuBar;
 195
 196     menu_bar->Append(file_menu, _T("&File"));
 197     SetMenuBar(menu_bar);
 198 }
 199
 200 // main frame constructor
 201 OwnerDrawnFrame::OwnerDrawnFrame(wxFrame *frame, wxChar *title,
 202                                  int x, int y, int w, int h)
 203          : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
 204 {
 205     // set the icon
 206     SetIcon(wxIcon(_T("mondrian")));
 207
 208     // create the menu
 209     InitMenu();
 210
 211     // create the status line
 212     const int widths[] = { -1, 60 };
 213     CreateStatusBar(2);
 214     SetStatusWidths(2, widths);
 215     SetStatusText(_T("no selection"), 0);
 216
 217     // make a panel with some controls
 218     wxPanel *pPanel = new wxPanel(this, -1, wxPoint(0, 0),
 219                                   wxSize(400, 200), wxTAB_TRAVERSAL);
 220
 221     // check list box
 222     static const wxChar* aszChoices[] = { _T("Hello"), _T("world"), _T("and"),
 223                                           _T("goodbye"), _T("cruel"), _T("world"),
 224                                           _T("-------"), _T("owner-drawn"), _T("listbox") };
 225
 226     wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
 227     unsigned int ui;
 228     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
 229         astrChoices[ui] = aszChoices[ui];
 230
 231     m_pListBox = new wxCheckListBox
 232         (
 233             pPanel,             // parent
 234             Control_Listbox,    // control id
 235             wxPoint(10, 10),    // listbox position
 236             wxSize(200, 200),   // listbox size
 237             WXSIZEOF(aszChoices), // number of strings
 238             astrChoices         // array of strings
 239         );
 240
 241     delete [] astrChoices;
 242
 243     for ( ui = 0; ui < WXSIZEOF(aszChoices); ui += 2 )
 244     {
 245         m_pListBox->GetItem(ui)->SetBackgroundColour(wxColor(200, 200, 200));
 246     }
 247
 248     m_pListBox->Check(2);
 249
 250     // normal (but owner-drawn) listbox
 251     static const wxChar* aszColors[] = { _T("Red"), _T("Blue"), _T("Pink"),
 252                                          _T("Green"), _T("Yellow"),
 253                                          _T("Black"), _T("Violet")  };
 254     struct { unsigned int r, g, b; } aColors[] =
 255         {
 256             {255,0,0}, {0,0,255}, {255,128,192},
 257             {0,255,0}, {255,255,128},
 258             {0,0,0}, {128,0,255}
 259         };
 260
 261     astrChoices = new wxString[WXSIZEOF(aszColors)];
 262
 263     for ( ui = 0; ui < WXSIZEOF(aszColors); ui++ )
 264     {
 265         astrChoices[ui] = aszColors[ui];
 266     }
 267
 268     wxListBox *pListBox = new wxListBox
 269         (
 270             pPanel,              // parent
 271             Control_Listbox2,    // control id
 272             wxPoint(220, 10),    // listbox position
 273             wxDefaultSize,       // listbox size
 274             WXSIZEOF(aszColors),   // number of strings
 275             astrChoices,         // array of strings
 276             wxLB_OWNERDRAW,      // owner-drawn
 277             wxDefaultValidator,  //
 278             wxListBoxNameStr
 279         );
 280
 281     for ( ui = 0; ui < WXSIZEOF(aszColors); ui++ )
 282     {
 283         pListBox->GetItem(ui)->SetTextColour(wxColor(aColors[ui].r,
 284                                                      aColors[ui].g,
 285                                                      aColors[ui].b));
 286         // yellow on white is horrible...
 287         if ( ui == 4 )
 288         {
 289             pListBox->GetItem(ui)->SetBackgroundColour(wxColor(0, 0, 0));
 290         }
 291
 292     }
 293
 294     delete[] astrChoices;
 295
 296     Show(TRUE);
 297 }
 298
 299 OwnerDrawnFrame::~OwnerDrawnFrame()
 300 {
 301 }
 302
 303 void OwnerDrawnFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 304 {
 305     Close(TRUE);
 306 }
 307
 308 void OwnerDrawnFrame::OnMenuToggle(wxCommandEvent& WXUNUSED(event))
 309 {
 310     // This example shows the use of bitmaps in ownerdrawn menuitems and is not a good
 311     // example on how to enable and disable menuitems - this should be done with the help of
 312     // EVT_UPDATE_UI and EVT_UPDATE_UI_RANGE !
 313     pAboutItem->Enable( pAboutItem->IsEnabled() ? FALSE : TRUE );
 314 }
 315
 316 void OwnerDrawnFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 317 {
 318     wxMessageDialog dialog(this,
 319                            _T("Demo of owner-drawn controls\n"),
 320                            _T("About wxOwnerDrawn"), wxYES_NO | wxCANCEL);
 321     dialog.ShowModal();
 322 }
 323
 324 void OwnerDrawnFrame::OnListboxSelect(wxCommandEvent& event)
 325 {
 326     wxString strSelection;
 327     unsigned int nSel = event.GetSelection();
 328     strSelection.Printf(wxT("item %d selected (%schecked)"), nSel,
 329                         m_pListBox->IsChecked(nSel) ? wxT("") : wxT("not "));
 330     SetStatusText(strSelection);
 331 }
 332
 333 void OwnerDrawnFrame::OnListboxDblClick(wxCommandEvent& WXUNUSED(event))
 334 {
 335     wxString strSelection;
 336     strSelection.Printf(wxT("item %d double clicked"),
 337                         m_pListBox->GetSelection());
 338     wxMessageDialog dialog(this, strSelection);
 339     dialog.ShowModal();
 340 }
 341
 342 void OwnerDrawnFrame::OnCheckboxToggle(wxCommandEvent& event)
 343 {
 344     wxString strSelection;
 345     unsigned int nItem = event.GetInt();
 346     strSelection.Printf(wxT("item %d was %schecked"), nItem,
 347                         m_pListBox->IsChecked(nItem) ? wxT("") : wxT("un"));
 348     SetStatusText(strSelection);
 349 }