examples/DataComms/Rconnection/example.cpp

// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//


#include <e32base.h>
#include <e32cons.h>
#include "rconnection.h"


_LIT(KRow01,"*****************************************\n");
_LIT(KRow02,"*     Welcome to RConnection Example    *\n");
_LIT(KRow03,"*****************************************\n");
_LIT(KRow04,"Press a Key to step through the Example\n");
_LIT(KNewLine,"\n");

static void DoStartL(CConsoleBase* aConsole); 
static void WelcomeScreen(CConsoleBase* aConsole);
static void CallExampleL(); // initialize with cleanup stack, then do example

static void DoStartL(CConsoleBase* aConsole)
        {
        // Create active scheduler (to run active objects).
        CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
        CleanupStack::PushL(scheduler);
        CActiveScheduler::Install(scheduler);

        CRConnection* example = new (ELeave) CRConnection(aConsole);
        CleanupStack::PushL(example);
        
        WelcomeScreen(aConsole);
        
        example->DemoApiWithoutDbOverrideL();   
        
        example->DemoApiWithDbOverrideL();
        
        example->AttachToExistingInterfaceL();
        
        CleanupStack::PopAndDestroy(example);

        // Delete active scheduler.
        CleanupStack::PopAndDestroy(scheduler); 
        }

static void CallExampleL() // initialize and call example code under cleanup stack
    {
    _LIT(KTxtExampleCode,"Symbian platform Example Code");
    _LIT(KFormatFailed,"failed: leave code=%d");
    _LIT(KTxtOK,"ok");
    _LIT(KTxtPressAnyKey," [press any key to exit]");
    
        CConsoleBase* console=Console::NewL(KTxtExampleCode,TSize(KConsFullScreen,KConsFullScreen));
        CleanupStack::PushL(console);
        
        TRAPD(error,DoStartL(console)); // perform example
        
        if (error)
                console->Printf(KFormatFailed, error);
        else
                console->Printf(KTxtOK);
        
        console->Printf(KTxtPressAnyKey);
        console->Getch(); // get and ignore character
        
        CleanupStack::PopAndDestroy(); // close console
    }

extern TInt E32Main() // main function called by E32
    {
    _LIT(KEgPanicCat,"EXAMPLES");
        __UHEAP_MARK;
        CTrapCleanup* cleanup=CTrapCleanup::New(); // create clean-up stack
        TRAPD(error,CallExampleL()); // do example
        __ASSERT_ALWAYS(!error,User::Panic(KEgPanicCat,error));
        delete cleanup; // destroy clean-up stack
        __UHEAP_MARKEND;
        return 0; // and return
    }

//Display for welcome screen.
static void WelcomeScreen(CConsoleBase* aConsole)
        {
        aConsole->ClearScreen();
        aConsole->Printf(KRow01);
        aConsole->Printf(KRow02);
        aConsole->Printf(KRow03);
        aConsole->Printf(KNewLine);
        aConsole->Printf(KRow04);
        aConsole->Getch();      
        }

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