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         {
 268             _T("Zeroth"),
 269             _T("First"),
 270             _T("Second"),
 271             _T("Third"),
 272             _T("Fourth"),
 273             _T("Fifth"),
 274             _T("Sixth"),
 275             _T("Seventh"),
 276             _T("Eighth"),
 277             _T("Nineth")
 278         };
 279
 280         m_checklistbox = new wxCheckListBox
 281                              (
 282                                 this,
 283                                 wxID_ANY,
 284                                 wxDefaultPosition,
 285                                 wxSize(100,100),
 286                                 wxArrayString(WXSIZEOF(aszChoices), aszChoices)
 287                              );
 288
 289         mainSizer->Add(
 290             m_checklistbox,
 291             0, // No vertical stretching
 292             wxALL,
 293             5 // Border width
 294         );
 295 #endif // wxUSE_CHECKLISTBOX
 296
 297         SetSizer(mainSizer);
 298         mainSizer->Fit(this);
 299     }
 300
 301     // implement wxWizardPage functions
 302     virtual wxWizardPage *GetPrev() const { return m_prev; }
 303     virtual wxWizardPage *GetNext() const
 304     {
 305         return m_checkbox->GetValue() ? m_next->GetNext() : m_next;
 306     }
 307
 308 private:
 309     wxWizardPage *m_prev,
 310                  *m_next;
 311
 312     wxCheckBox *m_checkbox;
 313 #if wxUSE_CHECKLISTBOX
 314     wxCheckListBox *m_checklistbox;
 315 #endif
 316 };
 317
 318 // ============================================================================
 319 // implementation
 320 // ============================================================================
 321
 322 // ----------------------------------------------------------------------------
 323 // event tables and such
 324 // ----------------------------------------------------------------------------
 325
 326 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 327     EVT_MENU(Wizard_Quit,         MyFrame::OnQuit)
 328     EVT_MENU(Wizard_About,        MyFrame::OnAbout)
 329     EVT_MENU(Wizard_RunModal,     MyFrame::OnRunWizard)
 330     EVT_MENU(Wizard_RunModeless,  MyFrame::OnRunWizard)
 331
 332     EVT_WIZARD_CANCEL(wxID_ANY,   MyFrame::OnWizardCancel)
 333     EVT_WIZARD_FINISHED(wxID_ANY, MyFrame::OnWizardFinished)
 334 END_EVENT_TABLE()
 335
 336 BEGIN_EVENT_TABLE(wxRadioboxPage, wxWizardPageSimple)
 337     EVT_WIZARD_PAGE_CHANGING(wxID_ANY, wxRadioboxPage::OnWizardPageChanging)
 338     EVT_WIZARD_CANCEL(wxID_ANY, wxRadioboxPage::OnWizardCancel)
 339 END_EVENT_TABLE()
 340
 341 IMPLEMENT_APP(MyApp)
 342
 343 // ----------------------------------------------------------------------------
 344 // the application class
 345 // ----------------------------------------------------------------------------
 346
 347 // `Main program' equivalent: the program execution "starts" here
 348 bool MyApp::OnInit()
 349 {
 350     MyFrame *frame = new MyFrame(_T("wxWizard Sample"));
 351
 352     // and show it (the frames, unlike simple controls, are not shown when
 353     // created initially)
 354     frame->Show(true);
 355
 356     // we're done
 357     return true;
 358 }
 359
 360 // ----------------------------------------------------------------------------
 361 // MyWizard
 362 // ----------------------------------------------------------------------------
 363
 364 MyWizard::MyWizard(wxFrame *frame)
 365          :wxWizard(frame,wxID_ANY,_T("Absolutely Useless Wizard"),
 366                    wxBitmap(wiztest_xpm),wxDefaultPosition,
 367                    wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 368 {
 369     // a wizard page may be either an object of predefined class
 370     m_page1 = new wxWizardPageSimple(this);
 371
 372     /* wxStaticText *text = */ new wxStaticText(m_page1, wxID_ANY,
 373              _T("This wizard doesn't help you\nto do anything at all.\n")
 374              _T("\n")
 375              _T("The next pages will present you\nwith more useless controls."),
 376              wxPoint(5,5)
 377         );
 378
 379     // ... or a derived class
 380     wxRadioboxPage *page3 = new wxRadioboxPage(this);
 381     wxValidationPage *page4 = new wxValidationPage(this);
 382
 383     // set the page order using a convenience function - could also use
 384     // SetNext/Prev directly as below
 385     wxWizardPageSimple::Chain(page3, page4);
 386
 387     // this page is not a wxWizardPageSimple, so we use SetNext/Prev to insert
 388     // it into the chain of pages
 389     wxCheckboxPage *page2 = new wxCheckboxPage(this, m_page1, page3);
 390     m_page1->SetNext(page2);
 391     page3->SetPrev(page2);
 392
 393     // allow the wizard to size itself around the pages
 394     GetPageAreaSizer()->Add(m_page1);
 395 }
 396
 397 void MyWizard::RunIt(bool modal)
 398 {
 399     if ( modal )
 400     {
 401         if ( RunWizard(m_page1) )
 402         {
 403             // Success
 404         }
 405
 406         Destroy();
 407     }
 408     else
 409     {
 410         FinishLayout();
 411         ShowPage(m_page1);
 412         Show(true);
 413     }
 414 }
 415
 416 // ----------------------------------------------------------------------------
 417 // MyFrame
 418 // ----------------------------------------------------------------------------
 419
 420 MyFrame::MyFrame(const wxString& title)
 421         :wxFrame((wxFrame *)NULL, wxID_ANY, title,
 422                   wxDefaultPosition, wxSize(250, 150))  // small frame
 423 {
 424     wxMenu *menuFile = new wxMenu;
 425     menuFile->Append(Wizard_RunModal, _T("&Run wizard modal...\tCtrl-R"));
 426     menuFile->Append(Wizard_RunModeless, _T("&Run wizard modeless..."));
 427     menuFile->AppendSeparator();
 428     menuFile->Append(Wizard_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 429
 430     wxMenu *helpMenu = new wxMenu;
 431     helpMenu->Append(Wizard_About, _T("&About...\tF1"), _T("Show about dialog"));
 432
 433     // now append the freshly created menu to the menu bar...
 434     wxMenuBar *menuBar = new wxMenuBar();
 435     menuBar->Append(menuFile, _T("&File"));
 436     menuBar->Append(helpMenu, _T("&Help"));
 437
 438     // ... and attach this menu bar to the frame
 439     SetMenuBar(menuBar);
 440
 441     // also create status bar which we use in OnWizardCancel
 442 #if wxUSE_STATUSBAR
 443     CreateStatusBar();
 444 #endif // wxUSE_STATUSBAR
 445 }
 446
 447 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 448 {
 449     // true is to force the frame to close
 450     Close(true);
 451 }
 452
 453 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 454 {
 455     wxMessageBox(_T("Demo of wxWizard class\n")
 456                  _T("(c) 1999, 2000 Vadim Zeitlin"),
 457                  _T("About wxWizard sample"), wxOK | wxICON_INFORMATION, this);
 458 }
 459
 460 void MyFrame::OnRunWizard(wxCommandEvent& event)
 461 {
 462     MyWizard *wizard = new MyWizard(this);
 463
 464     wizard->RunIt( event.GetId() == Wizard_RunModal );
 465 }
 466
 467 void MyFrame::OnWizardFinished(wxWizardEvent& WXUNUSED(event))
 468 {
 469     wxMessageBox(wxT("The wizard finished successfully."), wxT("Wizard notification"));
 470 }
 471
 472 void MyFrame::OnWizardCancel(wxWizardEvent& WXUNUSED(event))
 473 {
 474     wxMessageBox(wxT("The wizard was cancelled."), wxT("Wizard notification"));
 475 }