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/*
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* Copyright (c) 2003 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: SVG Implementation header file
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*
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*/
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#ifndef _INC_CSVGIMAGEELEMENTIMPL_
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#define _INC_CSVGIMAGEELEMENTIMPL_
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#include <imageconversion.h>
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#include "SVGElementImpl.h"
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#include "GfxRectangle2D.h"
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#include "SVGRequestObserver.h"
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#include "SVGImageLoadingObserver.h" // MSVGImageLoadingObserver
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class CFbsBitmap;
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class CSvgDocumentImpl;
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class MXmlDocument;
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/**
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* This class is for internal use to receive notification from other
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* <image> elements. This case is when an <image> element is Cloned
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* by a <use> element
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*/
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class MSvgImageElementListener
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{
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public:
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/**
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* Inform the listener that the image is decoded and update its
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* bitmap pointers
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*
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* @since s60 3.0
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* @return : None.
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*/
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virtual void BitmapDecoded( CFbsBitmap* aBitmap, CFbsBitmap* aMask ) = 0;
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/**
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* Inform the listener to reset its reference to the referred element
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* @since s60 3.1
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* @return : None.
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*/
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virtual void ResetReference() = 0;
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};
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/**
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* Class description goes here.
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*
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* @lib SVGEngine.lib
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* @since 1.0
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*/
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class CSvgImageElementImpl : public CSvgElementImpl,
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public MSVGImageLoadingObserver,
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public MSvgImageElementListener
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{
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public:
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/**
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* Helper class to load images asynchronously. To load an image:
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* 1. Instantiate CSvgImageLoaderUtil with NewL/NewLC, passing
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* a MSVGImageLoadingObserver, which implements the 'ImageLoadingCompleted'
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* method, and a file name. This method is called by the CSvgImageLoaderUtil
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* object when loading is complete. The error code passed-in will indicate
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* a successful load or not.
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* 2. Set the output mode with 'SetDisplayMode' the default is EColor64K, see
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* TDisplayMode for more options.
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* 3. Call one of the 'RequestForImageL' method.
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*
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* @lib SVGEngine.lib
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* @since 1.0
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*/
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class CSvgImageLoaderUtil : public CActive
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{
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public:
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/**
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* Constructor
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*
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* @since 1.0
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* @param aObserver : callback object when image loading completes.
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* @param aFileHandle : file handle of image to load.
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* @param aSyncLoading : Perform Synchronous loading(ETrue) or not
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* @return
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*/
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static CSvgImageLoaderUtil* NewL( MSVGImageLoadingObserver* aObserver,
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RFile& aFileHandle,
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TBool aSyncLoading );
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/**
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* Constructor
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*
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* @since 1.0
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* @param aObserver : callback object when image loading completes.
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* @param aEncodedData : encode 8-bit data buffer
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* @param aSyncLoading : Perform Synchronous loading(ETrue) or not
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* @return
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*/
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static CSvgImageLoaderUtil* NewL( MSVGImageLoadingObserver* aObserver,
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const TDesC8& aEncodedData,
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TBool aSyncLoading );
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/**
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* Destructor
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*
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* @since 1.0
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* @return
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*/
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~CSvgImageLoaderUtil();
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/**
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* Set the output mode, the default value is EColor64K.
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*
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* @since 1.0
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* @param aDisplayMode : output mode.
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* @return
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*/
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void SetDisplayMode( TDisplayMode aDisplayMode );
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/**
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* Request for the image and size the bitmap to the size of the image.
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*
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* @since 1.0
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* @param aBitmap : bitmap to store the pixels
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* @param aMask : bitmap to store the Mask pixels
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* @param aHasAlpha : Alpha value indicator, Used to create Mask
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* @param aFrameInfo : TFrameInfo structure
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* @return
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*/
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void RequestForImageL( CFbsBitmap& aBitmap,
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CFbsBitmap& aMask,
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TBool aHasAlpha,
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TFrameInfo aFrameInfo );
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/**
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* From CActive Handles cancelling of asynchronous requests
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*
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* @param aBitmap : bitmap to store the pixels
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* @since 2.0
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*/
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void DoCancel();
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/**
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* From CActive Called when asynchronous request is completed
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*
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* @since 2.0
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*/
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void RunL();
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/**
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* From CActive Called when asynchronous request is completed
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*
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* @since 2.0
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* @param aError : error code
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*/
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TInt RunError( TInt aError );
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/**
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* Return wether image decoding is synchronous or asynchronous.
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* @since 3.1
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* @param None
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* @return ETrue if image decoding is synchrounous else EFalse
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*/
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TBool IsSynchronousLoading();
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/**
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* Returns the FrameInfo of Image. Function is called once the Decoder is
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* created.
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* @since 3.2
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* @param None
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* @return TFrameInfo structure.
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*/
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TFrameInfo GetFrameInfo();
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private:
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/**
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* Constructor
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*
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* @since 1.0
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*/
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CSvgImageLoaderUtil();
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/**
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* Construct this object with leavable calls.
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*
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* @since 1.0
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* @param aObserver : callback object when image loading completes.
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* @param aFileHandle : file handle of image to load.
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* @param aSyncLoading : Perform Synchronous loading(ETrue) or not
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*/
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void ConstructL( MSVGImageLoadingObserver* aObserver,
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RFile& aFileHandle,
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TBool aSyncLoading );
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/**
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* Phase two of construction.
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*
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* @since 1.0
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* @param aObserver : callback object when image loading completes.
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* @param aEncodedData : encode 8-bit data buffer
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* @param aSyncLoading : Perform Synchronous loading(ETrue) or not
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*/
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void ConstructL( MSVGImageLoadingObserver* aObserver,
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const TDesC8& aEncodedData,
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TBool aSyncLoading );
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private:
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MSVGImageLoadingObserver* iObserver;
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CImageDecoder* iImageDecoder;
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TDisplayMode iDisplayMode;
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CActiveSchedulerWait* iActiveSchedulerWait;
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TBool iIsSyncLoading;
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HBufC8* iImageByteData;
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};
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public:
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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MXmlElement* CloneL(MXmlElement* aParentElement);
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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static CSvgImageElementImpl*NewL( const TUint8 aElemID,
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CSvgDocumentImpl* aDoc );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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static CSvgImageElementImpl*NewLC( const TUint8 aElemID,
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CSvgDocumentImpl* aDoc );
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private:
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void ConstructL( const TUint8 aElemID,
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CSvgDocumentImpl* aDoc );
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public:
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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virtual ~CSvgImageElementImpl();
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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const TDesC& Par();
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TInt CheckRequiredAttributes();
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void SetParL( const TDesC& aName );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void ImageLoadingCompleted( TInt aErrorStatus );
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// From SVG DOM
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TFloatFixPt X();
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TFloatFixPt Y();
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TFloatFixPt Width();
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TFloatFixPt Height();
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// SVG Implementation
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void SetWidth( TFloatFixPt aWidth );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void SetHeight( TFloatFixPt aHeight );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void SetUriL( const TDesC& aUri );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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void LoadUriL();
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// From MXmlElement API
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TInt SetAttributeL( const TDesC& aName,
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const TDesC& aValue );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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*/
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TBool DrawL( CGfx2dGc* aGc,
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CSvgElementImpl* aElement );
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/**
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* Need method description
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*
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* @since 1.0
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* @param
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* @return
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|
419 |
*/
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|
420 |
void GetBBox( TGfxRectangle2D& aBbox );
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|
421 |
|
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|
422 |
/**
|
|
|
423 |
* Need method description
|
|
|
424 |
*
|
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|
425 |
* @since 1.0
|
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|
426 |
* @param
|
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|
427 |
* @return
|
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|
428 |
*/
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|
429 |
virtual void GetUnscaledBBox( TGfxRectangle2D& /*aBbox*/ );
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|
430 |
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|
431 |
// From MXmlElementOpt API
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432 |
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433 |
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|
434 |
/**
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|
435 |
* Need method description
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|
436 |
*
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|
437 |
* @since 1.0
|
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|
438 |
* @param
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|
439 |
* @return
|
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|
440 |
*/
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|
441 |
TInt GetAttributeFloat( const TInt aNameId,
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|
442 |
TFloatFixPt& aValue );
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443 |
|
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|
444 |
/**
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|
445 |
* Need method description
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|
446 |
*
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|
447 |
* @since 1.0
|
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|
448 |
* @param
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|
449 |
* @return
|
|
|
450 |
*/
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|
451 |
TInt SetAttributeFloatL( const TInt aNameId,
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|
452 |
const TFloatFixPt aValue );
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453 |
|
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454 |
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|
455 |
/**
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|
456 |
* Need method description
|
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|
457 |
*
|
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|
458 |
* @since 1.0
|
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|
459 |
* @param
|
|
|
460 |
* @return
|
|
|
461 |
*/
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|
462 |
TInt SetAttributeDesL( const TInt aNameId,
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|
463 |
const TDesC& aValue );
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|
464 |
/**
|
|
|
465 |
* Need method description
|
|
|
466 |
*
|
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|
467 |
* @since 1.0
|
|
|
468 |
* @param
|
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|
469 |
* @return
|
|
|
470 |
*/
|
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|
471 |
CSvgImageElementImpl( CSvgDocumentImpl* aDoc );
|
|
|
472 |
|
|
|
473 |
TInt GetAttributeDes( const TInt aNameId,
|
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|
474 |
TPtrC16& aValue );
|
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|
475 |
|
|
|
476 |
/**
|
|
|
477 |
* Return wether an svg element is displayable, such as <rect>, <circle>, or
|
|
|
478 |
* an abstract element, such as <g>, <animate>.
|
|
|
479 |
*
|
|
|
480 |
* @since 1.0
|
|
|
481 |
* @param None
|
|
|
482 |
* @return ETrue if element is viewable.
|
|
|
483 |
*/
|
|
|
484 |
TBool IsViewable() { return ETrue; }
|
|
|
485 |
|
|
|
486 |
// Adding/Removing listener interested in image decoding notification
|
|
|
487 |
void AddImageElementListener( MSvgImageElementListener* aListener );
|
|
|
488 |
void RemoveImageElementListener( MSvgImageElementListener* aListener );
|
|
|
489 |
|
|
|
490 |
// MSvgImageElementListener method
|
|
|
491 |
void BitmapDecoded( CFbsBitmap* aBitmap, CFbsBitmap* aMask );
|
|
|
492 |
void ResetReference();
|
|
|
493 |
|
|
|
494 |
void Print( TBool aIsEncodeOn );
|
|
|
495 |
|
|
|
496 |
CFbsBitmap* GetBitmap();
|
|
|
497 |
|
|
|
498 |
void SetBitmap( CFbsBitmap* aBitmap );
|
|
|
499 |
|
|
|
500 |
// Assigned image data for this object to manage delete
|
|
|
501 |
// after image-decoding or destructing.
|
|
|
502 |
void AssignImageData( HBufC8* aData );
|
|
|
503 |
|
|
|
504 |
/**
|
|
|
505 |
* Starts the image decoding. This is the version that accepts
|
|
|
506 |
* descriptor data of the image content. Image can be SVG/ any format
|
|
|
507 |
* supported by CImageDecoder
|
|
|
508 |
* @since s60 3.2
|
|
|
509 |
* @param aImageData Image Data Descriptor
|
|
|
510 |
* @param aSyncLoading ETrue=Sync Loading
|
|
|
511 |
* @return TInt errorcode
|
|
|
512 |
*/
|
|
|
513 |
TInt StartImageDecoding( const TDesC8& aImageData,
|
|
|
514 |
TBool aSyncLoading );
|
|
|
515 |
|
|
|
516 |
/**
|
|
|
517 |
* Starts the image decoding. This is the version that accepts
|
|
|
518 |
* file handle of the image content. Image can be SVG/ any format
|
|
|
519 |
* supported by CImageDecoder
|
|
|
520 |
* @since s60 3.2
|
|
|
521 |
* @param aImageFile Image File handle
|
|
|
522 |
* @param aBitmap Bitmap Pointer
|
|
|
523 |
* @param aSyncLoading ETrue=Sync Loading
|
|
|
524 |
* @return TInt errorcode
|
|
|
525 |
*/
|
|
|
526 |
TInt StartImageDecoding( RFile& aImageFile,
|
|
|
527 |
CFbsBitmap* aBitmap,
|
|
|
528 |
TBool aSyncLoading );
|
|
|
529 |
/**
|
|
|
530 |
* Informs the image element that it is referring to a
|
|
|
531 |
* particular element. This is used in case an image element
|
|
|
532 |
* is cloned.
|
|
|
533 |
* @since s60 3.2
|
|
|
534 |
* @param aImageElement Image Element Pointer
|
|
|
535 |
* @return None.
|
|
|
536 |
*/
|
|
|
537 |
void SetReferenceElement( CSvgImageElementImpl* aImageElement );
|
|
|
538 |
|
|
|
539 |
/**
|
|
|
540 |
* Get function for reference element
|
|
|
541 |
* @since s60 3.2
|
|
|
542 |
* @param none
|
|
|
543 |
* @return Image Element Pointer.
|
|
|
544 |
*/
|
|
|
545 |
|
|
|
546 |
CSvgImageElementImpl* ReferenceElement();
|
|
|
547 |
|
|
|
548 |
private:
|
|
|
549 |
/**
|
|
|
550 |
* Notify the listeners (MSvgImageElementListener) when
|
|
|
551 |
* Image decoding is completed
|
|
|
552 |
* @since s60 3.0
|
|
|
553 |
* @param None.
|
|
|
554 |
* @return None.
|
|
|
555 |
*/
|
|
|
556 |
void NotifyImageDecoded();
|
|
|
557 |
/**
|
|
|
558 |
* Notify the listeners (MSvgImageElementListener) to dereference
|
|
|
559 |
* the reference element. This function can be called for eg.
|
|
|
560 |
* when the reference element is getting deleted.
|
|
|
561 |
* @since s60 3.2
|
|
|
562 |
* @param None.
|
|
|
563 |
* @return None.
|
|
|
564 |
*/
|
|
|
565 |
void NotifyResetReference();
|
|
|
566 |
void PrepareImageWithMask();
|
|
|
567 |
protected:
|
|
|
568 |
|
|
|
569 |
/**
|
|
|
570 |
* Need method description
|
|
|
571 |
*
|
|
|
572 |
* @since 1.0
|
|
|
573 |
* @param
|
|
|
574 |
* @return
|
|
|
575 |
*/
|
|
|
576 |
void CopyL( CSvgImageElementImpl* aDestElement );
|
|
|
577 |
|
|
|
578 |
void PrepareImageFromSvgFile(const TDesC8& aImageData);
|
|
|
579 |
|
|
|
580 |
|
|
|
581 |
private:
|
|
|
582 |
/**
|
|
|
583 |
* Process an encoded image in the xlink:href attribute value.
|
|
|
584 |
*
|
|
|
585 |
* @since 1.0
|
|
|
586 |
* @param aXlinkHrefValue : the string of the xlink:href attribute value.
|
|
|
587 |
* @return
|
|
|
588 |
*/
|
|
|
589 |
void ProcessEncodedImageL( const TDesC& aXlinkHrefValue );
|
|
|
590 |
|
|
|
591 |
|
|
|
592 |
private:
|
|
|
593 |
TGfxRectangle2D iImgRect;
|
|
|
594 |
HBufC* iPar;
|
|
|
595 |
TBool iBitmapOrgReady;
|
|
|
596 |
CSvgImageLoaderUtil* iImageLoader;
|
|
|
597 |
TBool iRenderImage;
|
|
|
598 |
|
|
|
599 |
TBool iUsedImage;
|
|
|
600 |
|
|
|
601 |
HBufC8* iImageData;
|
|
|
602 |
|
|
|
603 |
RPointerArray<MSvgImageElementListener> iImageElementListeners;
|
|
|
604 |
// Indicates whether the URI for xlink:href attribute is set.
|
|
|
605 |
TBool iIsUriSet;
|
|
|
606 |
TBool iImageDecodingDone;
|
|
|
607 |
public:
|
|
|
608 |
CFbsBitmap* iBitmap;
|
|
|
609 |
CFbsBitmap* iMask;
|
|
|
610 |
TBool iBitmapReady;
|
|
|
611 |
TBool iBitmapLoadCalled;
|
|
|
612 |
TInt iDownloadWait;
|
|
|
613 |
TFileName iFullPathFileName;
|
|
|
614 |
CPeriodic* iImageDownloadTimer;
|
|
|
615 |
|
|
|
616 |
RFs iSession;
|
|
|
617 |
TBool iSessionConnected;
|
|
|
618 |
TBool iIsBase64;
|
|
|
619 |
|
|
|
620 |
TBool iIsSvgFile;
|
|
|
621 |
// Image Reference Element - used in clone scenario
|
|
|
622 |
CSvgImageElementImpl* iRefElement;
|
|
|
623 |
};
|
|
|
624 |
|
|
|
625 |
|
|
|
626 |
|
|
|
627 |
|
|
|
628 |
#endif /*_INC_CSVGIMAGEELEMENTIMPL_INCLUDED */
|