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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef S60CCAMERAENGINEOBSERVER_H
#define S60CCAMERAENGINEOBSERVER_H
// FORWARD DECLARATIONS
class CFbsBitmap;
class TECAMEvent;
enum TCameraEngineError
{
EErrReserve,
EErrPowerOn,
EErrViewFinderReady,
EErrImageReady,
EErrPreview,
EErrAutoFocusInit,
EErrAutoFocusMode,
EErrAutoFocusArea,
EErrAutoFocusRange,
EErrAutoFocusType,
EErrOptimisedFocusComplete,
};
/*
* CameraEngine Observer class towards Camera AdvancedSettings
*/
class MAdvancedSettingsObserver
{
public:
virtual void HandleAdvancedEvent( const TECAMEvent &aEvent ) = 0;
};
//=============================================================================
/*
* CameraEngine Observer class towards Camera Control
*/
class MCameraEngineObserver
{
public:
/**
* Camera is ready to use for capturing images.
*/
virtual void MceoCameraReady() = 0;
/**
* Notifies clients about errors in camera engine
* @param aErrorType type of error (see TCameraEngineError)
* @param aError Symbian system-wide error code
*/
virtual void MceoHandleError( TCameraEngineError aErrorType, TInt aError ) = 0;
};
//=============================================================================
/*
* CameraEngine Observer class towards Camera ImageCaptureSession
*/
class MCameraEngineImageCaptureObserver
{
public:
/**
* Camera AF lens has attained optimal focus
*/
virtual void MceoFocusComplete() = 0;
/**
* Captured data is ready - call CCameraEngine::ReleaseImageBuffer()
* after processing/saving the data (typically, JPG-encoded image)
* @param aData Pointer to a descriptor containing a frame of camera data.
*/
virtual void MceoCapturedDataReady( TDesC8* aData ) = 0;
/**
* Captured bitmap is ready.
* after processing/saving the image, call
* CCameraEngine::ReleaseImageBuffer() to free the bitmap.
* @param aBitmap Pointer to an FBS bitmap containing a captured image.
*/
virtual void MceoCapturedBitmapReady( CFbsBitmap* aBitmap ) = 0;
/**
* Notifies clients about errors in camera engine
* @param aErrorType type of error (see TCameraEngineError)
* @param aError Symbian system-wide error code
*/
virtual void MceoHandleError( TCameraEngineError aErrorType, TInt aError ) = 0;
/**
* Notifies client about other events not recognized by camera engine.
* The default implementation is empty.
* @param aEvent camera event (see MCameraObserver2::HandleEvent())
*/
virtual void MceoHandleOtherEvent( const TECAMEvent& /*aEvent*/ ) {}
};
//=============================================================================
/*
* CameraEngine Observer class towards Camera ViewFinderEngine
*/
class MCameraViewfinderObserver
{
public:
/**
* A new viewfinder frame is ready.
* after displaying the frame, call
* CCameraEngine::ReleaseViewFinderBuffer()
* to free the bitmap.
* @param aFrame Pointer to an FBS bitmap containing a viewfinder frame.
*/
virtual void MceoViewFinderFrameReady( CFbsBitmap& aFrame ) = 0;
};
//=============================================================================
#ifdef ECAM_PREVIEW_API
/*
* CameraEngine Observer class towards Camera ViewFinderEngine
*/
class MCameraPreviewObserver
{
public:
/**
* A new preview is available.
* @param aPreview Pointer to an FBS bitmap containing a preview.
*/
virtual void MceoPreviewReady( CFbsBitmap& aPreview ) = 0;
};
#endif // ECAM_PREVIEW_API
#endif // CCAMERAENGINEOBSERVER_H
// End of file
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