williamr@4: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@4: // All rights reserved.
williamr@4: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@4: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@4: //
williamr@4: // Initial Contributors:
williamr@4: // Nokia Corporation - initial contribution.
williamr@4: //
williamr@4: // Contributors:
williamr@4: //
williamr@4: // Description:
williamr@4: // This is Image Transform extension for Rotate/Flip Transformations
williamr@4: // 
williamr@4: //
williamr@4: 
williamr@4: /**
williamr@4:  @file
williamr@4:  @publishedAll 
williamr@4:  @released
williamr@4: */
williamr@4: 
williamr@4: #ifndef __ORIENTATIONTRANFORMEEXTENSION_H__
williamr@4: #define __ORIENTATIONTRANFORMEEXTENSION_H__
williamr@4: 
williamr@4: #include <e32base.h>
williamr@4: #include <icl/imagetransformpluginext.h>
williamr@4: #include <icl/icl_uids.hrh>
williamr@4: 
williamr@4: /**
williamr@4: @publishedAll 
williamr@4: @released
williamr@4: 
williamr@4: The Orientation Extension to the ImageTransform plugin.
williamr@4:  
williamr@4: The class provides the methods to set the image orientation and is intended to be implemented
williamr@4: by the plugins supporting the rotation of the image based on the orientation. The plugin
williamr@4: supporting this extension must use the opaque_data v2 format in RSS file and also the orientation flag
williamr@4: must be set in the opaque_data. The client must retrieve this extension implementation from 
williamr@4: the plugin using its extension UID. 
williamr@4: */
williamr@4: class COrientationTransformExtension : public CImageTransformPluginExtension
williamr@4: 	{
williamr@4: public:
williamr@4: 	/** 
williamr@4: 	The possible orientations of the image. Similar to the EXIF orientation tag
williamr@4: 	*/
williamr@4: 	enum TOrientation
williamr@4: 		{
williamr@4: 		/**
williamr@4: 		No rotation done
williamr@4: 		*/
williamr@4: 		ERotationNone = 1,
williamr@4: 		/**
williamr@4: 		Rotate the image clockwise through 90 degrees.
williamr@4: 		*/
williamr@4: 		ERotation90DegreesClockwise = 6,
williamr@4: 		/**
williamr@4: 		Rotate the image clockwise through 180 degrees.
williamr@4: 		*/
williamr@4: 		ERotation180DegreesClockwise = 3,
williamr@4: 		/**
williamr@4: 		Rotate the image clockwise through 270 degrees.
williamr@4: 		*/
williamr@4: 		ERotation270DegreesClockwise = 8,
williamr@4: 		/** 
williamr@4: 		Mirror the image over its vertical axis
williamr@4: 		*/
williamr@4: 		EMirrorVerticalAxis = 2,
williamr@4: 		/**
williamr@4: 		Mirror the image over its horizontal axis
williamr@4: 		*/
williamr@4: 		EMirrorHorizontalAxis = 4,
williamr@4: 		/**
williamr@4: 		Transpose (or mirror) the image across a diagonal running from top-left to lower-right.
williamr@4: 		*/
williamr@4: 		ETransposeOverMainDiagonal = 5,
williamr@4: 		/**
williamr@4: 		Transpose (or mirror) the image across a diagonal running from top-right to lower-left.
williamr@4: 		*/
williamr@4: 		ETransposeOverMinorDiagonal = 7
williamr@4: 		};	
williamr@4: 
williamr@4: 	IMPORT_C void SetOrientationL(TOrientation aOrientation ) ;
williamr@4: 
williamr@4: protected:
williamr@4: 	virtual void DoSetOrientationL(TOrientation aOrientation) = 0;
williamr@4: 
williamr@4: private:
williamr@4: 	IMPORT_C virtual void ReservedVirtual5();
williamr@4: 
williamr@4: private:	
williamr@4: 	// Future proofing
williamr@4: 	TAny* iPad;
williamr@4: 	};
williamr@4: 
williamr@4: #endif // __ORIENTATIONTRANFORMEEXTENSION_H__