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git-svn-id: https://zxing.googlecode.com/svn/trunk@1332 59b500cc-1b3d-0410-9834-0bbf25fbcc57
93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
/*
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* ============================================================================
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* Name : cameraengineobserver.h
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* Part of : CameraWrapper
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* Description : Observer interface for camera engine (wrapper DLL)
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* Version : %version: 1 %
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*
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* Copyright (c) 2009 Nokia Corporation.
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* This material, including documentation and any related
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* computer programs, is protected by copyright controlled by
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* Nokia Corporation.
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* ==============================================================================
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*/
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#ifndef __CCAMERAENGINEOBSERVER_H__
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#define __CCAMERAENGINEOBSERVER_H__
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// FORWARD DECLARATIONS
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class CFbsBitmap;
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class TECAMEvent;
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enum TCameraEngineError
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{
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EErrReserve,
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EErrPowerOn,
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EErrViewFinderReady,
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EErrImageReady,
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EErrAutoFocusInit,
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EErrAutoFocusMode,
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EErrAutoFocusArea,
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EErrAutoFocusRange,
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EErrAutoFocusType,
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EErrOptimisedFocusComplete,
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};
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class MCameraEngineObserver
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{
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public:
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/**
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* Camera is ready to use for capturing images.
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*/
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virtual void MceoCameraReady() = 0;
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/**
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* Camera AF lens has attained optimal focus
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*/
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virtual void MceoFocusComplete() = 0;
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/**
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* Captured data is ready - call CCameraEngine::ReleaseImageBuffer()
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* after processing/saving the data (typically, JPG-encoded image)
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* @param aData Pointer to a descriptor containing a frame of camera data.
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*/
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virtual void MceoCapturedDataReady( TDesC8* aData ) = 0;
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/**
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* Captured bitmap is ready.
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* after processing/saving the image, call
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* CCameraEngine::ReleaseImageBuffer() to free the bitmap.
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* @param aBitmap Pointer to an FBS bitmap containing a captured image.
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*/
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virtual void MceoCapturedBitmapReady( CFbsBitmap* aBitmap ) = 0;
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/**
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* A new viewfinder frame is ready.
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* after displaying the frame, call
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* CCameraEngine::ReleaseViewFinderBuffer()
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* to free the bitmap.
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* @param aFrame Pointer to an FBS bitmap containing a viewfinder frame.
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*/
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virtual void MceoViewFinderFrameReady( CFbsBitmap& aFrame ) = 0;
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/**
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* Notifies clients about errors in camera engine
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* @param aErrorType type of error (see TCameraEngineError)
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* @param aError Symbian system-wide error code
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*/
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virtual void MceoHandleError( TCameraEngineError aErrorType, TInt aError ) = 0;
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/**
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* Notifies client about other events not recognized by camera engine.
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* The default implementation is empty.
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* @param aEvent camera event (see MCameraObserver2::HandleEvent())
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*/
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virtual void MceoHandleOtherEvent( const TECAMEvent& /*aEvent*/ ) {}
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};
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#endif // __CCAMERAENGINEOBSERVER_H__
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// eof
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