samples/wizard/wizard.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wizard.cpp
   3 // Purpose:     wxWidgets sample demonstrating wxWizard control
   4 // Author:      Vadim Zeitlin
   5 // Modified by: Robert Vazan (sizers)
   6 // Created:     15.08.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/stattext.h"
  30     #include "wx/log.h"
  31     #include "wx/app.h"
  32     #include "wx/checkbox.h"
  33     #include "wx/checklst.h"
  34     #include "wx/msgdlg.h"
  35     #include "wx/radiobox.h"
  36     #include "wx/menu.h"
  37     #include "wx/sizer.h"
  38 #endif
  39
  40 #include "wx/wizard.h"
  41
  42 #include "wiztest.xpm"
  43 #include "wiztest2.xpm"
  44
  45 // ----------------------------------------------------------------------------
  46 // constants
  47 // ----------------------------------------------------------------------------
  48
  49 // ids for menu items
  50 enum
  51 {
  52     Wizard_Quit = wxID_EXIT,
  53     Wizard_RunModal = wxID_HIGHEST,
  54     Wizard_RunModeless,
  55     Wizard_About = wxID_ABOUT
  56 };
  57
  58 // ----------------------------------------------------------------------------
  59 // private classes
  60 // ----------------------------------------------------------------------------
  61
  62 // Define a new application type, each program should derive a class from wxApp
  63 class MyApp : public wxApp
  64 {
  65 public:
  66     // override base class virtuals
  67     virtual bool OnInit();
  68 };
  69
  70 class MyFrame : public wxFrame
  71 {
  72 public:
  73     // ctor(s)
  74     MyFrame(const wxString& title);
  75
  76     // event handlers (these functions should _not_ be virtual)
  77     void OnQuit(wxCommandEvent& event);
  78     void OnAbout(wxCommandEvent& event);
  79     void OnRunWizard(wxCommandEvent& event);
  80     void OnWizardCancel(wxWizardEvent& event);
  81     void OnWizardFinished(wxWizardEvent& event);
  82
  83 private:
  84     // any class wishing to process wxWidgets events must use this macro
  85     DECLARE_EVENT_TABLE()
  86 };
  87
  88 // ----------------------------------------------------------------------------
  89 // our wizard
  90 // ----------------------------------------------------------------------------
  91
  92 class MyWizard : public wxWizard
  93 {
  94 public:
  95     MyWizard(wxFrame *frame);
  96     void RunIt(bool modal);
  97
  98 private:
  99     wxWizardPageSimple *m_page1;
 100 };
 101
 102 // ----------------------------------------------------------------------------
 103 // some pages for our wizard
 104 // ----------------------------------------------------------------------------
 105
 106 // This shows how to simply control the validity of the user input by just
 107 // overriding TransferDataFromWindow() - of course, in a real program, the
 108 // check wouldn't be so trivial and the data will be probably saved somewhere
 109 // too.
 110 //
 111 // It also shows how to use a different bitmap for one of the pages.
 112 class wxValidationPage : public wxWizardPageSimple
 113 {
 114 public:
 115     wxValidationPage(wxWizard *parent) : wxWizardPageSimple(parent)
 116     {
 117         m_bitmap = wxBitmap(wiztest2_xpm);
 118
 119         m_checkbox = new wxCheckBox(this, wxID_ANY, _T("&Check me"));
 120
 121         wxBoxSizer *mainSizer = new wxBoxSizer(wxVERTICAL);
 122         mainSizer->Add(
 123             new wxStaticText(this, wxID_ANY,
 124                              _T("You need to check the checkbox\n")
 125                              _T("below before going to the next page\n")),
 126             0,
 127             wxALL,
 128             5
 129         );
 130
 131         mainSizer->Add(
 132             m_checkbox,
 133             0, // No stretching
 134             wxALL,
 135             5 // Border
 136         );
 137         SetSizer(mainSizer);
 138         mainSizer->Fit(this);
 139     }
 140
 141     virtual bool TransferDataFromWindow()
 142     {
 143         if ( !m_checkbox->GetValue() )
 144         {
 145             wxMessageBox(_T("Check the checkbox first!"), _T("No way"),
 146                          wxICON_WARNING | wxOK, this);
 147
 148             return false;
 149         }
 150
 151         return true;
 152     }
 153
 154 private:
 155     wxCheckBox *m_checkbox;
 156 };
 157
 158 // This is a more complicated example of validity checking: using events we may
 159 // allow to return to the previous page, but not to proceed. It also
 160 // demonstrates how to intercept [Cancel] button press.
 161 class wxRadioboxPage : public wxWizardPageSimple
 162 {
 163 public:
 164     // directions in which we allow the user to proceed from this page
 165     enum
 166     {
 167         Forward, Backward, Both, Neither
 168     };
 169
 170     wxRadioboxPage(wxWizard *parent) : wxWizardPageSimple(parent)
 171     {
 172         // should correspond to the enum above
 173         //        static wxString choices[] = { "forward", "backward", "both", "neither" };
 174         // The above syntax can cause an internal compiler error with gcc.
 175         wxString choices[4];
 176         choices[0] = _T("forward");
 177         choices[1] = _T("backward");
 178         choices[2] = _T("both");
 179         choices[3] = _T("neither");
 180
 181         m_radio = new wxRadioBox(this, wxID_ANY, _T("Allow to proceed:"),
 182                                  wxDefaultPosition, wxDefaultSize,
 183                                  WXSIZEOF(choices), choices,
 184                                  1, wxRA_SPECIFY_COLS);
 185         m_radio->SetSelection(Both);
 186
 187         wxBoxSizer *mainSizer = new wxBoxSizer(wxVERTICAL);
 188         mainSizer->Add(
 189             m_radio,
 190             0, // No stretching
 191             wxALL,
 192             5 // Border
 193         );
 194
 195         SetSizer(mainSizer);
 196         mainSizer->Fit(this);
 197     }
 198
 199     // wizard event handlers
 200     void OnWizardCancel(wxWizardEvent& event)
 201     {
 202         if ( wxMessageBox(_T("Do you really want to cancel?"), _T("Question"),
 203                           wxICON_QUESTION | wxYES_NO, this) != wxYES )
 204         {
 205             // not confirmed
 206             event.Veto();
 207         }
 208     }
 209
 210     void OnWizardPageChanging(wxWizardEvent& event)
 211     {
 212         int sel = m_radio->GetSelection();
 213
 214         if ( sel == Both )
 215             return;
 216
 217         if ( event.GetDirection() && sel == Forward )
 218             return;
 219
 220         if ( !event.GetDirection() && sel == Backward )
 221             return;
 222
 223         wxMessageBox(_T("You can't go there"), _T("Not allowed"),
 224                      wxICON_WARNING | wxOK, this);
 225
 226         event.Veto();
 227     }
 228
 229 private:
 230     wxRadioBox *m_radio;
 231
 232     DECLARE_EVENT_TABLE()
 233 };
 234
 235 // This shows how to dynamically (i.e. during run-time) arrange the page order.
 236 class wxCheckboxPage : public wxWizardPage
 237 {
 238 public:
 239     wxCheckboxPage(wxWizard *parent,
 240                    wxWizardPage *prev,
 241                    wxWizardPage *next)
 242         : wxWizardPage(parent)
 243     {
 244         m_prev = prev;
 245         m_next = next;
 246
 247         wxBoxSizer *mainSizer = new wxBoxSizer(wxVERTICAL);
 248
 249         mainSizer->Add(
 250             new wxStaticText(this, wxID_ANY, _T("Try checking the box below and\n")
 251                                        _T("then going back and clearing it")),
 252             0, // No vertical stretching
 253             wxALL,
 254             5 // Border width
 255         );
 256
 257         m_checkbox = new wxCheckBox(this, wxID_ANY, _T("&Skip the next page"));
 258         mainSizer->Add(
 259             m_checkbox,
 260             0, // No vertical stretching
 261             wxALL,
 262             5 // Border width
 263         );
 264
 265 #if wxUSE_CHECKLISTBOX
 266         static const wxChar *aszChoices[] =
 267             { _T("Zeroth"), _T("First"), _T("Second"), _T("Third"), _T("Fourth"), _T("Fifth"), _T("Sixth"), _T("Seventh"), _T("Eighth"), _T("Nineth") };
 268         wxString *astrChoices = new wxString[WXSIZEOF(aszChoices)];
 269         unsigned int ui;
 270         for ( ui = 0; ui < WXSIZEOF(aszChoices); ui++ )
 271             astrChoices[ui] = aszChoices[ui];
 272
 273         m_checklistbox = new wxCheckListBox(this, wxID_ANY, wxDefaultPosition, wxSize(100,100),
 274             WXSIZEOF(aszChoices), astrChoices);
 275
 276         mainSizer->Add(
 277             m_checklistbox,
 278             0, // No vertical stretching
 279             wxALL,
 280             5 // Border width
 281         );
 282 #endif // wxUSE_CHECKLISTBOX
 283
 284         SetSizer(mainSizer);
 285         mainSizer->Fit(this);
 286     }
 287
 288     // implement wxWizardPage functions
 289     virtual wxWizardPage *GetPrev() const { return m_prev; }
 290     virtual wxWizardPage *GetNext() const
 291     {
 292         return m_checkbox->GetValue() ? m_next->GetNext() : m_next;
 293     }
 294
 295 private:
 296     wxWizardPage *m_prev,
 297                  *m_next;
 298
 299     wxCheckBox *m_checkbox;
 300 #if wxUSE_CHECKLISTBOX
 301     wxCheckListBox *m_checklistbox;
 302 #endif
 303 };
 304
 305 // ============================================================================
 306 // implementation
 307 // ============================================================================
 308
 309 // ----------------------------------------------------------------------------
 310 // event tables and such
 311 // ----------------------------------------------------------------------------
 312
 313 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 314     EVT_MENU(Wizard_Quit,         MyFrame::OnQuit)
 315     EVT_MENU(Wizard_About,        MyFrame::OnAbout)
 316     EVT_MENU(Wizard_RunModal,     MyFrame::OnRunWizard)
 317     EVT_MENU(Wizard_RunModeless,  MyFrame::OnRunWizard)
 318
 319     EVT_WIZARD_CANCEL(wxID_ANY,   MyFrame::OnWizardCancel)
 320     EVT_WIZARD_FINISHED(wxID_ANY, MyFrame::OnWizardFinished)
 321 END_EVENT_TABLE()
 322
 323 BEGIN_EVENT_TABLE(wxRadioboxPage, wxWizardPageSimple)
 324     EVT_WIZARD_PAGE_CHANGING(wxID_ANY, wxRadioboxPage::OnWizardPageChanging)
 325     EVT_WIZARD_CANCEL(wxID_ANY, wxRadioboxPage::OnWizardCancel)
 326 END_EVENT_TABLE()
 327
 328 IMPLEMENT_APP(MyApp)
 329
 330 // ----------------------------------------------------------------------------
 331 // the application class
 332 // ----------------------------------------------------------------------------
 333
 334 // `Main program' equivalent: the program execution "starts" here
 335 bool MyApp::OnInit()
 336 {
 337     MyFrame *frame = new MyFrame(_T("wxWizard Sample"));
 338
 339     // and show it (the frames, unlike simple controls, are not shown when
 340     // created initially)
 341     frame->Show(true);
 342
 343     // we're done
 344     return true;
 345 }
 346
 347 // ----------------------------------------------------------------------------
 348 // MyWizard
 349 // ----------------------------------------------------------------------------
 350
 351 MyWizard::MyWizard(wxFrame *frame)
 352          :wxWizard(frame,wxID_ANY,_T("Absolutely Useless Wizard"),
 353                    wxBitmap(wiztest_xpm),wxDefaultPosition,
 354                    wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 355 {
 356     // a wizard page may be either an object of predefined class
 357     m_page1 = new wxWizardPageSimple(this);
 358
 359     /* wxStaticText *text = */ new wxStaticText(m_page1, wxID_ANY,
 360              _T("This wizard doesn't help you\nto do anything at all.\n")
 361              _T("\n")
 362              _T("The next pages will present you\nwith more useless controls."),
 363              wxPoint(5,5)
 364         );
 365
 366     // ... or a derived class
 367     wxRadioboxPage *page3 = new wxRadioboxPage(this);
 368     wxValidationPage *page4 = new wxValidationPage(this);
 369
 370     // set the page order using a convenience function - could also use
 371     // SetNext/Prev directly as below
 372     wxWizardPageSimple::Chain(page3, page4);
 373
 374     // this page is not a wxWizardPageSimple, so we use SetNext/Prev to insert
 375     // it into the chain of pages
 376     wxCheckboxPage *page2 = new wxCheckboxPage(this, m_page1, page3);
 377     m_page1->SetNext(page2);
 378     page3->SetPrev(page2);
 379
 380     // allow the wizard to size itself around the pages
 381     GetPageAreaSizer()->Add(m_page1);
 382 }
 383
 384 void MyWizard::RunIt(bool modal)
 385 {
 386     if ( modal )
 387     {
 388         if ( RunWizard(m_page1) )
 389         {
 390             // Success
 391         }
 392
 393         Destroy();
 394     }
 395     else
 396     {
 397         FinishLayout();
 398         ShowPage(m_page1);
 399         Show(true);
 400     }
 401 }
 402
 403 // ----------------------------------------------------------------------------
 404 // MyFrame
 405 // ----------------------------------------------------------------------------
 406
 407 MyFrame::MyFrame(const wxString& title)
 408         :wxFrame((wxFrame *)NULL, wxID_ANY, title,
 409                   wxDefaultPosition, wxSize(250, 150))  // small frame
 410 {
 411     wxMenu *menuFile = new wxMenu;
 412     menuFile->Append(Wizard_RunModal, _T("&Run wizard modal...\tCtrl-R"));
 413     menuFile->Append(Wizard_RunModeless, _T("&Run wizard modeless..."));
 414     menuFile->AppendSeparator();
 415     menuFile->Append(Wizard_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 416
 417     wxMenu *helpMenu = new wxMenu;
 418     helpMenu->Append(Wizard_About, _T("&About...\tF1"), _T("Show about dialog"));
 419
 420     // now append the freshly created menu to the menu bar...
 421     wxMenuBar *menuBar = new wxMenuBar();
 422     menuBar->Append(menuFile, _T("&File"));
 423     menuBar->Append(helpMenu, _T("&Help"));
 424
 425     // ... and attach this menu bar to the frame
 426     SetMenuBar(menuBar);
 427
 428     // also create status bar which we use in OnWizardCancel
 429 #if wxUSE_STATUSBAR
 430     CreateStatusBar();
 431 #endif // wxUSE_STATUSBAR
 432 }
 433
 434 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 435 {
 436     // true is to force the frame to close
 437     Close(true);
 438 }
 439
 440 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 441 {
 442     wxMessageBox(_T("Demo of wxWizard class\n")
 443                  _T("(c) 1999, 2000 Vadim Zeitlin"),
 444                  _T("About wxWizard sample"), wxOK | wxICON_INFORMATION, this);
 445 }
 446
 447 void MyFrame::OnRunWizard(wxCommandEvent& event)
 448 {
 449     MyWizard *wizard = new MyWizard(this);
 450
 451     wizard->RunIt( event.GetId() == Wizard_RunModal );
 452 }
 453
 454 void MyFrame::OnWizardFinished(wxWizardEvent& WXUNUSED(event))
 455 {
 456     wxMessageBox(wxT("The wizard finished successfully."), wxT("Wizard notification"));
 457 }
 458
 459 void MyFrame::OnWizardCancel(wxWizardEvent& WXUNUSED(event))
 460 {
 461     wxMessageBox(wxT("The wizard was cancelled."), wxT("Wizard notification"));
 462 }