author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 14 Sep 2010 20:58:58 +0300 | |
branch | RCL_3 |
changeset 88 | 3321d3e205b6 |
parent 83 | 5456b4e8b3a8 |
child 102 | ba63c83f4716 |
permissions | -rw-r--r-- |
83 | 1 |
/* |
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* Copyright (c) 2008 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: Preview provider ECOM plugin |
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* |
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*/ |
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#ifndef PREVIEWPROVIDERCRP_H |
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#define PREVIEWPROVIDERCRP_H |
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// INCLUDES |
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#include <w32std.h> |
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#include <graphics/wsgraphicdrawerinterface.h> |
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#include <graphics/wsgraphicdrawer.h> |
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// Number of screenshots used at the same time, |
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// each window group change will cause a screenshot |
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// to one of these, the index for the current one is |
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// switched after each screenshot capture. (this is needed |
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// to prevent overwriting screenshots before the client could |
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// make a copy of them) |
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const TInt KMaxShots = 4; |
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/** |
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* Preview provider window server ECOM plugin class. |
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*/ |
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NONSHARABLE_CLASS( CPreviewProviderCRP ) : public CWsGraphicDrawer, |
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public MWsEventHandler |
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{ |
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public: |
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/** |
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* Creates a new instance of the plguin. |
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* |
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* @return Created instance. |
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*/ |
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static CWsGraphicDrawer* CreateL(); |
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/** |
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* Destructor |
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*/ |
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~CPreviewProviderCRP(); |
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private: |
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/** |
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* From CWsGraphicDrawer. |
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* |
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* @param aGc |
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* @param aRect |
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* @param aData |
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*/ |
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void DoDraw( MWsGc& aGc, const TRect& aRect, const TDesC8& aData ) const; |
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/** |
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* Handles message from PreviewProviderClient. |
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* |
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* @param aData Message data. |
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*/ |
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void HandleMessage( const TDesC8& aData ); |
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/** |
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* 2nd phase constructor. |
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* |
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* @param aEnv |
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* @param aId |
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* @param aOwner |
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* @param aData |
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*/ |
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void ConstructL( MWsGraphicDrawerEnvironment& aEnv, |
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const TGraphicDrawerId& aId, |
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MWsClient& aOwner, |
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const TDesC8& aData ); |
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/** |
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* From MWsEventHandler. |
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* |
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* Observer for TWservCrEvent::EWindowGroupChanged to take the screenshot |
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* when application changes. |
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* |
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* @param aEvent |
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*/ |
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void DoHandleEvent( const TWservCrEvent& aEvent ); |
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private: |
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/** |
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* 2nd phase constructor. |
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*/ |
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void ConstructL(); |
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/** |
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* Handles application registration. |
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* |
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* @param aWgId Window group id. |
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*/ |
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void Register( TInt aWgId ); |
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/** |
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* Handler application unregistration. |
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* |
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* @param aWgId Window group id. |
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*/ |
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void Unregister( TInt aWgId ); |
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/* |
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* Allocate resources and take screenshot |
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*/ |
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88
3321d3e205b6
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
83
diff
changeset
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void ScreenshotL( TBool aRotation ); |
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/** |
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* Takes the screenshot. |
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*/ |
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void ScreenshotL( CFbsBitmap& aBitmap ); |
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/** |
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* Remove bitmap reference fom list |
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*/ |
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void RemoveScreenshot( TInt aBitmapHandle ); |
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/** |
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* Remove all bitmaps overflow |
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*/ |
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void CheckOverflow(); |
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/** |
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* Handles message from PreviewProviderClient. |
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* |
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* @param aData Message data. |
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*/ |
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void DoHandleMessageL( const TDesC8& aData ); |
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/** |
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* Notifies the PreviewProviderClient when screenshot is ready for copying. |
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*/ |
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88
3321d3e205b6
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
83
diff
changeset
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void ScaleCompleteL( const CFbsBitmap& aBitmap, TBool aRotation ); |
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/** |
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* Notifies the PreviewProviderClient when an application has been exited. |
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*/ |
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void UnregisterComplete( TInt aWgId ); |
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/** |
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* Uses window server front buffer to create a screenshot. |
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* @param aFront preallocated destination bitmap |
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* @param aFront Front buffer. |
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* @param aSrcSize Size of the source front buffer in pixels. |
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* @param aSrcStride Source stride. |
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*/ |
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void FrontBufferScreenShot( |
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CFbsBitmap& aBitmap, |
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MWsFrontBuffer& aFront, const TSize& aSrcSize, TInt aSrcStride ); |
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private: |
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TInt iScreen; |
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TInt iPrevId; |
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TInt iPrevReg; // to work around the problem with wgid not set when app brought |
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// to foreground first time |
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RPointerArray<CFbsBitmap> iScreenshots; |
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TSize iScreenshotSize; |
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TDisplayMode iScreenshotMode; |
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RArray<TInt> iWgIds; |
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TTime iScreenChangedTime; // fix for orientation changed/wg group changed problem |
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TBool iClockwiseRot; // for marking rotation direction |
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TBool iLastWgIdRedraw; |
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}; |
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#endif // PREVIEWPROVIDERCRP_H |
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// End of file |