udpsocketappui.cpp

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CUdpSocketAppUi from UdpSocketAppui.cpp
*  Part of  : UdpSocket
*  Created  : 07.03.2006 by ToBeReplacedByAuthor
*  Implementation notes:
*     Initial content was generated by Series 60 Application Wizard.
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

// INCLUDE FILES
#include <avkon.hrh>
#include <aknquerydialog.h> // for CAknMultiLineDataQueryDialog
#include <eikmenup.h>       // for CEikMenuPane
#include <UdpSocket.rsg>

#include "UdpSocket.hrh"
#include "UdpSocketAppui.h"
#include "UdpSocketContainer.h" 


// ================= MEMBER FUNCTIONS =======================
//
// ----------------------------------------------------------
// CUdpSocketAppUi::ConstructL()
// 
// ----------------------------------------------------------
//
void CUdpSocketAppUi::ConstructL()
    {
    BaseConstructL();

    iAppContainer = new (ELeave) CUdpSocketContainer;
    iAppContainer->SetMopParent( this );
    iAppContainer->ConstructL( ClientRect() );
    AddToStackL( iAppContainer );

    iEngine = CUdpSocketEngine::NewL(*this);
    }

// ----------------------------------------------------
// CUdpSocketAppUi::~CUdpSocketAppUi()
// Destructor
// Frees reserved resources
// ----------------------------------------------------
//
CUdpSocketAppUi::~CUdpSocketAppUi()
    {
    if (iAppContainer)
        {
        RemoveFromStack( iAppContainer );
        delete iAppContainer;
        }
    delete iEngine;
    }

// Functions from CUdpSocketEngine::MObserver
void CUdpSocketAppUi::OnSendL(const TDesC& aMsg, TInt aError)
    {
    OutputMsgL(R_QTN_PROMPT_LOCAL);
    if(aError==KErrNone)
        {
        iAppContainer->OutputMsgL(aMsg);
        }
    else
        {
        OutputErrL(aError);
        }
    }

void CUdpSocketAppUi::OnReceiveL(const TDesC& aMsg, TInt aError)
    {
    OutputMsgL(R_QTN_PROMPT_REMOTE);
    if(aError==KErrNone)
        {
        iAppContainer->OutputMsgL(aMsg);
        }
    else
        {
        OutputErrL(aError);
        }
    }

// ------------------------------------------------------------------------------
// CUdpSocketAppUi::DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane)
//  This function is called by the EIKON framework just before it displays
//  a menu pane. Its default implementation is empty, and by overriding it,
//  the application can set the state of menu items dynamically according
//  to the state of application data.
// ------------------------------------------------------------------------------
//
void CUdpSocketAppUi::DynInitMenuPaneL(
    TInt aResourceId,CEikMenuPane* aMenuPane)
    {
    if(aResourceId!=R_UDPSOCKET_MENU)
        {
        return;
        }
    if(iEngine->RemoteSpecified())
        {
        aMenuPane->SetItemDimmed(EUdpSocketCmdSetRemote, ETrue);
        if(iAppContainer->LocalMsgLength()==0)
            {
            aMenuPane->SetItemDimmed(EUdpSocketCmdSend, ETrue);
            }
        }
    else
        {
        aMenuPane->SetItemDimmed(EUdpSocketCmdSend, ETrue);
        }
    }


// ----------------------------------------------------
// CUdpSocketAppUi::HandleCommandL(TInt aCommand)
// takes care of command handling
// ----------------------------------------------------
//
void CUdpSocketAppUi::HandleCommandL(TInt aCommand)
    {
    switch ( aCommand )
        {
        case EAknSoftkeyBack:
        case EEikCmdExit:
            {
            Exit();
            break;
            }
        case EUdpSocketCmdSetRemote:
            {
            // Create dialog to allow user to view/edit connection details
            _LIT(KRemoteIP, "127.0.0.1");
            TBuf<15> ip = KRemoteIP();
            TInt port = 8001;

            CAknMultiLineDataQueryDialog* dialog =
                CAknMultiLineDataQueryDialog::NewL(ip, port);

            // Display and execute dialog, and act according to return value
            if ( dialog->ExecuteLD(R_UDPSOCKET_ADDRESS_QUERY) )
                {
                iEngine->SetRemoteL(ip, port);
                }
            break;
            }
        case EUdpSocketCmdSend:
            {
            iAppContainer->SelectLocalMsgL();
            HBufC* buf = HBufC::NewLC(iAppContainer->LocalMsgLength());
            TPtr ptr = buf->Des();
            iAppContainer->GetLocalMsg(ptr);
            iEngine->SendL(*buf);
            CleanupStack::PopAndDestroy();
            break;
            }
        default:
            break;      
        }
    }

void CUdpSocketAppUi::OutputMsgL(TInt aResourceId)
    {
    HBufC* buf = iCoeEnv->AllocReadResourceLC(aResourceId);
    iAppContainer->OutputMsgL(*buf);
    CleanupStack::PopAndDestroy();
    }

void CUdpSocketAppUi::OutputErrL(TInt aError)
    {
    TBuf<32> msg;
    HBufC* buf = iCoeEnv->AllocReadResourceLC(R_QTN_PROMPT_ERROR);
    msg.Copy(*buf);
    CleanupStack::PopAndDestroy();
    msg.Append(' ');
    msg.AppendNum(aError);
    iAppContainer->OutputMsgL(msg);
    }

// End of File