//---------------------------------------------------------------------------
//
//  Geoworks (R) application software and GEOS (R) operating system
//  software copyright (C) 1990-1998 Geoworks.  All rights reserved.
//  United States Patents 5327529, 5237651, and 5438662. U.K. Patents
//  0375703 and 0631677.  German Patents P3854269.2-08 and
//  69307728.1-08.  French Patents 0375703 and 0631677.  Other
//  international patents pending.
//
//  This software is the confidential and proprietary information of
//  Geoworks ("Confidential Information").  You shall not disclose
//  such Confidential Information and shall use it only in accordance
//  with the terms of the license agreement you entered into with
//  Geoworks.
//
//
// PROJECT:     GEOS-SC documentation
// MODULE:      Tutorial chapter
// FILE:        tutsamp.h
//
// VERSION:     2.2
//
// DESCRIPTION: 
//     This is a simple "Hello World" application.
//
//---------------------------------------------------------------------------

//
// This is to avoid multiple inclusions of this file
//
#ifndef _TUTSAMPAPP_H_
#define _TUTSAMPAPP_H_

#include <toolkit/uifact.h>         //for UI objects (FlexFrame, etc.)
#include <ui/appbase.h>             //for AppBase class
#include <toolkit/lisact.h>         //for ActionListenerInterface class
#include <resapp/resapp.h>          //for ResidentApplication class

class TutorialApp : public ActionListenerInterface, public AppBase {
public:
    TutorialApp(void);

    // SetAppContext is overridden to build the UI.
    virtual void SetAppContext(const TCHAR *context);

    // GetAppContext is overridden to save the application state.
    virtual TCHAR *GetAppContext(void);

    // ActionPerformed is overridden to intercept button presses.
    virtual void ActionPerformed(ActionEvent& event);

    // Exit is overridden to clean up when the application quits.
    virtual void Exit(void);

private:

    // Helper function to create our UI.
    Result BuildUI(void);

    // Flag to let us know if we have already built our UI.
    Boolean         _builtUI;

    // This label says, "Hello World!"
    // We keep its pointer handy so that code can
    // reference it to make it appear and disappear.
    FlexLabel       *_helloworldLabel;

    // We keep a pointer to this object 
    // so that we can delete it 
    // when shutting down the application's UI.
    VerticalFlowLayout  *_layout;
};

//
// Strings that are not user-visible
//
const TCHAR *const TUTSAMP_APP_NAME = _TEXT("tutsamp");

// Subclass of ResidentApplication to register the app with the system.
class TutorialSampResidentApplication : public ResidentApplication 
{
public:
        TutorialSampResidentApplication() : ResidentApplication(TUTSAMP_APP_NAME) 
        {};
        virtual AppBase *CreateAppBase(void) 
        {
            return new TutorialApp;
        }
};

static TutorialSampResidentApplication tutsampApp;

#endif  // _TUTSAMPAPP_H_