--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/htiui/HtiServicePlugins/HtiScreenshotServicePlugin/inc/HtiScreenshotServicePlugin.h	Tue Feb 02 00:17:27 2010 +0200
@@ -0,0 +1,262 @@
+/*
+* Copyright (c) 2009 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:  Implementation of ECOM plug-in service interface. Provides
+*                screenshot service.
+*
+*/
+
+
+#ifndef SCREENSHOOTPLUGIN_H
+#define SCREENSHOOTPLUGIN_H
+
+// INCLUDES
+#include <HTIServicePluginInterface.h>
+#include <w32std.h>
+#include <f32file.h>
+#include "HtiTextRcg.h"
+
+
+// FORWARD DECLARATIONS
+class CImageEncoder;
+
+
+// CLASS DECLARATIONS
+class MICLObserver
+    {
+public:
+    virtual void ICLComplete( TInt anError) = 0;
+    };
+
+class CICLHandler : public CActive
+    {
+public:
+    CICLHandler(CImageEncoder* aService, MICLObserver* anObserver);
+    ~CICLHandler();
+
+    void Start();
+
+protected: //from CActive
+    void RunL();
+    void DoCancel();
+    //TInt RunError(TInt aError);
+
+protected:
+    MICLObserver* iObserver;
+    CImageEncoder* iService;
+    };
+
+
+
+
+
+class MSeriesShotTimerObserver
+    {
+public:
+    virtual void TimerExpired( TInt aId ) = 0;
+    };
+
+
+
+class CSeriesShotTimer : public CTimer
+    {
+public:
+    static CSeriesShotTimer* NewL(MSeriesShotTimerObserver* aObserver,
+                                 TInt aId,
+                                 TTimeIntervalMicroSeconds32 aTime);
+    ~CSeriesShotTimer();
+    void Start();
+
+protected:
+    void ConstructL();
+    CSeriesShotTimer(MSeriesShotTimerObserver* aObserver,
+                    TInt aId,
+                    TTimeIntervalMicroSeconds32 aTime);
+public: // from CTimer
+    void RunL();
+
+private:
+    MSeriesShotTimerObserver* iObserver;
+    TInt iId;
+    TTimeIntervalMicroSeconds32 iTime;
+    };
+
+
+class MSeriesShotObserver
+    {
+public:
+    virtual void SeriesShotCompletedL( HBufC8* aMsg ) = 0;
+    virtual TBool StartShotL(TRect aRegion, TDisplayMode aDisplayMode, TDesC8 &aMimeType) = 0;
+    };
+
+
+class CHtiScreenshotServicePlugin; // forward declaration
+
+class CSeriesShot : public CBase,
+                    public MSeriesShotTimerObserver
+    {
+    enum TTimerType
+        {
+        EDuration,
+        EInterval
+        };
+public:
+    static CSeriesShot* NewL( MSeriesShotObserver* aServicePluginObserver );
+    CSeriesShot( MSeriesShotObserver* aServicePluginObserver );
+    virtual ~CSeriesShot();
+
+    void StartL( TTimeIntervalMicroSeconds32 aDuration,
+                 TTimeIntervalMicroSeconds32 aInterval,
+                 TDisplayMode aDisplayMode,
+                 TRect aRegion,
+                 TPtrC8 aMime);
+    TBool IsOngoing();
+    void SaveImage( TDesC8* aImage, TBool isCompressed );
+    void TriggerNewShot();
+    void Cancel();
+    void EncodeCompleted();
+    HBufC8* ConstructCompletedMessageL();
+
+protected:
+    void ConstructL();
+    void ClearShots();
+    void GetMIMEExtension(TDesC8 &aMime, TDes &aExt);
+
+public: // from MSeriesShotTimerObserver
+    void TimerExpired(TInt aId);
+
+private:
+    MSeriesShotObserver* iServicePluginObserver;
+    CSeriesShotTimer* iDurationTimer;
+    CSeriesShotTimer* iIntervalTimer;
+    TDisplayMode iDisplayMode;
+    TInt iIndex;
+    RFs iFs;
+    TBool isEncoding;
+    TBuf8<30> iMimeType;
+    TBuf<10>  iExtension;
+    TRect iRegion;
+    };
+
+
+
+class CHtiScreenshotServicePlugin : public CHTIServicePluginInterface,
+                                    public MICLObserver,
+                                    public MSeriesShotObserver
+    {
+public:
+
+    static CHtiScreenshotServicePlugin* NewL();
+
+    // Interface implementation
+    TBool IsBusy();
+    void ProcessMessageL(const TDesC8& aMessage, THtiMessagePriority aPriority);
+    void NotifyMemoryChange( TInt aAvailableMemory );
+
+    // Observer implementation
+    void ICLComplete( TInt anError); // from MICLObserver
+    void SeriesShotCompletedL( HBufC8* aMsg ); // from MSeriesShotObserver
+    TBool StartShotL(TRect aRegion, TDisplayMode aDisplayMode, TDesC8 &aMimeType); // from MSeriesShotObserver
+
+protected:
+
+    void ProcessTextRcgMessageL(const TDesC8& aMessage);
+    void ProcessTextBitmapMessageL(const TDesC8& aMessage);
+
+    void SendTextRecgReplyL(const TBool aResult, const TRect& aLocation,
+                            const TInt aFontIndex);
+
+
+    /**
+    * Selects fonts based on predefined platform-dependent strategy
+    *
+    */
+    TBool RecognizeTextL(const TDesC& aText,
+                        TRect& aResult,
+                        TInt& aFontIndex);
+
+    /**
+    * Extracts string from incoming request and convert it to unicode
+    * for non-unicode request
+    * aResult should have enough length
+    * Function returns either offset for a next parameter in aRequest
+    * or some symbian error code
+    */
+    TInt ParseString( const TDesC8& aRequest,
+                        TInt anOffset,
+                        TBool aUnicode,
+                        TDes& aResult);
+
+    void CopyUnicode( TDes & aTo, const TDesC8& aFrom );
+
+    /**
+    * Extract from request font description (font name, height, style)
+    */
+    TInt ParseFontSpec( const TDesC8& aRequest,
+                        TInt anOffset,
+                        TBool aUnicode,
+                        TFontSpec& aResult);
+
+    CWsScreenDevice* GetScreenDeviceL();
+
+    void CreateBitmapL( TRect& aRegion, TDisplayMode aMode = ENone);
+
+    void SelectEncoder( const TUid aEncoderUid );
+
+    //encode iScreen
+    void EncodeBitmapL(const TDesC8& aImageTypeMIME = KNullDesC8);
+
+    inline TInt ParseInt16( const TUint8* aStart );
+    inline TInt ParseInt32( const TUint8* aStart );
+
+    /**
+    * Compress content of iEncodedBitmap descriptor
+    */
+    TInt Compress();
+
+    CHtiScreenshotServicePlugin();
+    void ConstructL();
+
+    virtual ~CHtiScreenshotServicePlugin();
+
+    //void InitFontCache();
+
+    TBool IsMIMETypeSupported(TDesC8 &aMime);
+
+protected:
+    CFbsBitmap* iScreen; //raw screen bitmap
+    HBufC8* iEncodedBitmap; //ready to send
+
+    RWsSession iWs;
+    CWsScreenDevice* iScreenDevice;
+
+    CImageEncoder* iBitmapEncoder;
+    CICLHandler* iICLHandler;
+
+    TBool iCompress;
+
+    //text recognition algorithms
+    CHtiTextRcg iTextRcg;
+    //fonts to use for recognition
+    RArray<TFontSpec> iFontCache;
+
+    // Series shot implementation
+    CSeriesShot*    iSeriesShot;
+
+    // Members for deltacapture
+    TBool       iDeltaCapture;
+    CFbsBitmap* iPreviousBitmap;
+    TRect       iDeltaRect;
+    };
+
+#endif // SCREENSHOOTPLUGIN_H