///////////////////////////////////////////////////////////////////////////////
// Name:        wizard.h
// Purpose:     wxWizard class: a GUI control presenting the user with a
//              sequence of dialogs which allows to simply perform some task
// Author:      Vadim Zeitlin (partly based on work by Ron Kuris and Kevin B.
//              Smith)
// Modified by:
// Created:     15.08.99
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows license
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_WIZARD_H_
#define _WX_WIZARD_H_

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#ifndef WX_PRECOMP
    #include "wx/dialog.h"      // the base class

    #include "wx/event.h"       // wxEVT_XXX constants
#endif // WX_PRECOMP

// ----------------------------------------------------------------------------
// wxWizard
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxWizard : public wxDialog
{
public:
    // create the wizard control
    static wxWizard *Create(wxWindow *parent,
                            int id = -1,
                            const wxString& title = wxEmptyString,
                            const wxBitmap& bitmap = wxNullBitmap,
                            const wxPoint& pos = wxDefaultPosition,
                            const wxSize& size = wxDefaultSize);

    // wizard construction: add/insert new page into it
        // adds a page at the end
    virtual void AddPage(wxPanel *page) = 0;
        // adds a page before the page nPage (the new page will have this index)
    virtual void InsertPage(int nPage, wxPanel *page) = 0;

    // executes the wizard, returns TRUE if it was successfully finished, FALSE
    // if user cancelled it
    virtual bool RunWizard() = 0;

    // get the current page (NULL if RunWizard() isn't running)
    virtual wxPanel *GetCurrentPage() const = 0;

private:
    DECLARE_DYNAMIC_CLASS(wxWizard)
};

// ----------------------------------------------------------------------------
// wxWizardEvent class represents an event generated by the wizard
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxWizardEvent : public wxNotifyEvent
{
public:
    wxWizardEvent(wxEventType type = wxEVT_NULL, int id = 0);

    // get the previously active page or -1 if none
    int GetOldPage() const { return m_pageOld; }

    // get the current page or -1 if none
    int GetPage() const { return m_page; }

private:
    int m_pageOld, m_page;

    DECLARE_DYNAMIC_CLASS(wxWizardEvent)
};

// ----------------------------------------------------------------------------
// macros for handling wxWizardEvents
// ----------------------------------------------------------------------------

typedef void (wxEvtHandler::*wxWizardEventFunction)(wxWizardEvent&);

// notifies that the page has just been changed
#define EVT_WIZARD_PAGE_CHANGED(id, fn) { wxEVT_WIZARD_PAGE_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxWizardEventFunction) & fn, (wxObject *)NULL },

// the user pressed "<Back" or "Next>" button and the page is going to be
// changed - unless the event handler vetoes the event
#define EVT_WIZARD_PAGE_CHANGING(id, fn) { wxEVT_WIZARD_PAGE_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxWizardEventFunction) & fn, (wxObject *)NULL },

// the user pressed "Cancel" button and the wizard is going to be dismissed -
// unless the event handler vetoes the event
#define EVT_WIZARD_CANCEL(id, fn) { wxEVT_WIZARD_CANCEL, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxWizardEventFunction) & fn, (wxObject *)NULL },

#endif // _WX_WIZARD_H_