diff -r e52958d06c29 -r 5fd161fa28b6 svgtviewer/SvgtViewerPlugin/SVGCodecInc/SVGCodec.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/svgtviewer/SvgtViewerPlugin/SVGCodecInc/SVGCodec.h	Thu Sep 09 11:17:40 2010 +0300
@@ -0,0 +1,291 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  SVGT codec for reading the file header & data.
+*
+*/
+
+
+#ifndef SVGCODEC_H
+#define SVGCODEC_H
+
+#include <imagecodec.h>
+#include <imagedata.h>
+#include <SVGRequestObserver.h>
+#include <SVGListener.h>
+
+
+class CSvgEngineInterfaceImpl;
+class CFbsBitmap;
+class TFrameInfo;
+class TSVGFrameInfo;
+class MSvgError;
+class CGulIcon;
+
+// SVG Read codec.
+class CSvgReadCodec : public CImageProcessorReadCodec
+                       ,public MSvgRequestObserver
+                       , public MSvgLoadingListener
+
+    {
+public:
+    enum TDownloadNeeded 
+        {
+        // The uri refers to a local image file
+        ELocalImageFile,
+        // The uri refers to a remote image file
+        ERemoteImageFile,
+        // The uri doesnt refer to an image file
+        ENotAnImageFile
+        };
+    
+    enum TImagesLocation
+        {
+        EPhoneMemory,
+        EMemoryCard
+        };
+public:
+
+    /**
+    * Static constructor. Creates and returns a pointer to CSvgReadCodec
+    * @since 3.1
+    * @return Pointer to the read codec instance.
+    */
+    static CSvgReadCodec* NewL(const TSize& aSize);
+
+    /**
+    * Destructor.
+    */
+    virtual ~CSvgReadCodec();
+
+    /**
+    * Sets the SVG presentation data
+    * @since 3.1
+    * @param aFileData  SVG presentation file data
+    */
+    void SetFileDataL( const TDesC8& aFileData );
+    
+public: //From MSvgRequestObserver
+    void UpdateScreen();
+
+    TBool ScriptCall( const TDesC& aScript, CSvgElementImpl* aCallerElement );
+
+    TInt FetchImage( const TDesC& aUri, RFs& aSession, RFile& aFileHandle ) ;
+    TInt CSvgReadCodec::FetchFont( const TDesC& /* aUri */, 
+                                    RFs& /* aSession */, RFile& /* aFileHandle */ );
+
+    void GetSmilFitValue( TDes& aSmilValue );
+
+    void UpdatePresentation( const TInt32&  aNoOfAnimation );        
+
+public: //User methods
+    void PrepareEngine();
+    TSize ContentSize() const;
+    void GenerateThumbnailL(CFbsBitmap* aFrame, CFbsBitmap* aFrameMask);
+    TDownloadNeeded IsDownloadNeededL( const TDesC& aUri ) const;
+    TBool GetLocalFile( const TDesC& aUri, 
+                                    TDes& aFileName ,
+                                    const TDesC& aRefPath ) const;
+    
+    HBufC* GetImagesPath( CSvgReadCodec::TImagesLocation aImagesLocation) const;
+    
+protected:
+    // From CImageProcessorReadCodec
+    /**
+    * Performs initial processing of image data and mask bitmaps.
+	* @param	aFrameInfo
+	        A reference to a TFrameInfo object.
+	* @param	aFrameImageData
+	        A reference to a CFrameImageData object.
+	* @param	aDisableErrorDiffusion
+	        A flag indicating whether error diffusion should be disabled.
+	* @param	aDestination
+	        The destination bitmap.
+	* @param	aDestinationMask
+	        The destination mask bitmap.
+    */
+    virtual void InitFrameL(TFrameInfo& aFrameInfo, CFrameImageData& aFrameImageData, TBool aDisableErrorDiffusion, CFbsBitmap& aDestination, CFbsBitmap* aDestinationMask);
+    
+	/**
+	* Processes the frame data contained in aSrc.
+ 	* This is a pure virtual function that each derived class must implement.
+	* @param  aSrc
+	*       A reference to the buffer containing the frame data.
+    *
+	* @return	The current frame state after processing.
+	*/
+    
+    virtual TFrameState ProcessFrameL(TBufPtr8& aSrc);
+
+private:
+    
+    /**
+    * Precesses the SVG presentation file data
+    */
+    void DoProcessL();
+    
+    /**
+    * Default constructor
+    * @param aSize specifies the thubnail size
+    */
+    CSvgReadCodec(const TSize& aSize);
+
+    void ConstructL();
+    void InitializeEngineL();
+    /**
+    * Deletes the structures associated with the engine
+    * viz. The Frame List, Mask List, Delay Interval List, 
+    * The DOM for the content and the Engine Implementation itself
+    */
+    void DeleteEngine();
+// From MSvgLoadingListener    
+public:
+    /**
+     * Query the listener if every element is to be reported or only
+     * the children of <svg> tag.
+     *
+     * @since 1.0
+     * @return : ETrue if every element is to be reported, otherwise
+     *           only the children of <svg> are reported.
+     */
+    TBool ReportAllElements();
+
+    /**
+     * Query the listener if client will call 'AssignImageData' to decode images
+     * separately from parsing.  This is used to avoid non-thread-safe calls in
+     * creating bitmap and decoding images, which must be executed in the main thread.
+     *
+     * @since 1.0
+     * @return : ETrue to use 'ImageDataReference' instead of 'FetchImage'.
+     */
+    TBool WillAssignImageData();
+
+    /**
+     * Callback when the href:xlink attribute is encountered for the <image>
+     * element.  This method is used to notify clients of image data references
+     * needed by <image> element.  This method is called only when 'WillAssignImageData'
+     * returns ETrue.
+     *
+     * @since 1.0
+     * @return : none.
+     */
+    void ImageDataReference( const TDesC& aUri );
+
+    /**
+     * Notified when the start of a svg document(<svg> tag) is encountered.
+     *
+     * @since 1.0
+     * @return : For future use.  Value is ignored.
+     */
+    TBool DocumentStart() ;
+
+    /**
+     * Notified when the end of a svg document(</svg> tag) is encountered.
+     *
+     * @since 1.0
+     * @return : For future use.  Value is ignored.
+     */
+    TBool DocumentEnd();
+
+    /**
+     * Notified when the start of a svg element is encountered.
+     *
+     * @since 1.0
+     * @param : aTagName -- name of svg tag
+     * @param : aAttributeList -- attribute list.
+     * @return : For future use.  Value is ignored.
+     */
+    TBool ElementStart( const TDesC& aTagName,
+                                MSvgAttributeList& aAttributeList);
+
+    /**
+     * Notified when the end of a svg element is encountered.
+     * activated.
+     *
+     * @since 1.0
+     * @param : aTagName -- name of svg tag
+     * @return : For future use.  Value is ignored.
+     */
+    TBool ElementEnd( const TDesC& aTagName );
+
+    /**
+     * Notified when an external data is needed by the svg document,
+     * such as a image-file or an embedded svg-file.
+     *
+     * @since 1.0
+     * @param : aUri -- URI string of external data
+     * @return : For future use.  Value is ignored.
+     */
+    TBool ExternalDataRequested( const TDesC& aUri );
+
+    /**
+     * Notified when an external data has been retrieved,
+     * such as a image-file or an embedded svg-file.
+     *
+     * @since 1.0
+     * @param : aUri -- URI string of external data
+     * @return : For future use.  Value is ignored.
+     */
+    TBool ExternalDataReceived( const TDesC& aUri );
+
+    /**
+     * Notified when an external data request has failed.
+     *
+     * @since 1.0
+     * @param : aUri -- URI string of external data
+     * @return : For future use.  Value is ignored.
+     */
+    TBool ExternalDataRequestFailed( const TDesC& aUri );
+
+    /**
+     * Notified when an unsupported element is encountered.
+     *
+     * @since 1.0
+     * @param : aTagName -- tag name of element
+     * @param : aAttributeList -- attribute list.
+     * @return : For future use.  Value is ignored.
+     */
+    TBool UnsupportedElement( const TDesC& aTagName,
+                                      MSvgAttributeList& aAttributeList );
+
+    void ImagesLoaded(TInt aError);
+    void GetNewDataPosition(TInt &aPosition, TInt &aLength);
+    
+private:    // Data
+    // Dummy Bitmap used by SVG Engine to render content.
+    CFbsBitmap* iSVGTBitMapDummy;
+
+    // SVG Engine Interface Implementation pointer
+    CSvgEngineInterfaceImpl* iSvgModule;
+    
+    //Frame Array
+    RPointerArray<CFbsBitmap> iFrameList;
+    RPointerArray<CFbsBitmap> iMaskList;
+    RArray<TUint> iDelayList;
+    
+    // SVG Thumbnail Handle
+    TInt iThumbnailHandle;
+      
+    // SVGT content filename descriptor
+    HBufC8* iFileData;
+    TSize iContentSize;
+    MSvgError* iPrepareDomResult;
+    
+    TBool iImagesPresent;
+    
+    TBool iImagesLoaded;
+
+    TSize iOriginalSize;
+    };
+
+#endif  //SVGCODEC_H