camappengine/Engine/Src/CaeCallbackActive.cpp
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:23:23 +0100
branchRCL_3
changeset 34 27fe719c32e6
parent 0 9b3e960ffc8a
permissions -rw-r--r--
Revert incorrect RCL_3 drop: Revision: 201031 Kit: 201035
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/*
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* Copyright (c) 2003,2004 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Active object for calling Camera Application Engine methods 
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*                indirectly from callbacks
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*
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*/
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// INCLUDE FILES
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#include "CaeCallbackActive.h"
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#include "CaeEngineImp.h"
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// ================= MEMBER FUNCTIONS =======================
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::CCaeCallbackActive()
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// C++ constructor.
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// Adds the object to the Active Scheduler.
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// ---------------------------------------------------------------------------
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//
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CCaeCallbackActive::CCaeCallbackActive( 
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    CCaeEngineImp& aCamAppEngine )
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: CActive( EPriorityStandard ), iCamAppEngine( aCamAppEngine )
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    {
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::CCaeCallbackActive()
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// Destructor. 
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// Cancels operation and closes the timer.
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// ---------------------------------------------------------------------------
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//
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CCaeCallbackActive::~CCaeCallbackActive()
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    {
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    Cancel();
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    iTimer.Close();
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    }
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::NewLC()
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// Symbian OS two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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CCaeCallbackActive* CCaeCallbackActive::NewLC( 
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    CCaeEngineImp& aCamAppEngine )
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    {
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    CCaeCallbackActive* self = new( ELeave ) CCaeCallbackActive( aCamAppEngine );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::NewL()
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// Symbian OS two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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CCaeCallbackActive* CCaeCallbackActive::NewL( 
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    CCaeEngineImp& aCamAppEngine )
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    {
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    CCaeCallbackActive* self = NewLC( aCamAppEngine );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::ConstructL()
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// Symbian OS 2nd phase constructor that can leave.
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// ---------------------------------------------------------------------------
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//
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void CCaeCallbackActive::ConstructL()
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    {
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    User::LeaveIfError( iTimer.CreateLocal() );
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    }
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::PowerOn()
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// Switches camera power on.
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// ---------------------------------------------------------------------------
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//
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void CCaeCallbackActive::PowerOn()
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    {
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    LOGTEXT( _L( "Cae: CCaeCallbackActive::PowerOn() entering" ) );
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    _LIT( KPowerOnPanic, "CCaeCallbackActive::PowerOn");
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    __ASSERT_ALWAYS( !IsActive(), User::Panic( KPowerOnPanic, 1 ) );
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    iRequest = CCaeCallbackActive::ERequestPowerOn;
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    SetActive();
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    TRequestStatus* statusPtr = &iStatus;
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    User::RequestComplete( statusPtr, KErrNone );
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    LOGTEXT( _L( "Cae: CCaeCallbackActive::PowerOn() returning" ) );
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    }
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   117
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::RunL()
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// Calls Camera Application Engine operation.
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// ---------------------------------------------------------------------------
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//
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void CCaeCallbackActive::RunL()
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    {
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    LOGTEXT( _L( "Cae: CCaeCallbackActive::RunL() entering" ) );
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    switch ( iRequest ) 
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        {
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        case CCaeCallbackActive::ERequestPowerOn:
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            // Call Camera Application Engine to switch camera power on.
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            iCamAppEngine.PowerOn();
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            break;
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        default:
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            break;
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        }
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    LOGTEXT( _L( "Cae: CCaeCallbackActive::RunL() returning" ) );
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    }
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   140
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// ---------------------------------------------------------------------------
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// CCaeCallbackActive::DoCancel()
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// Cancels request.
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// ---------------------------------------------------------------------------
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//
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void CCaeCallbackActive::DoCancel()
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    {
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    iTimer.Cancel();
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    iRequest = CCaeCallbackActive::ERequestDefault;
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    }
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// End of File