imagehandling_plat/image_handling_library_api/inc/IHLImageFactory.h
changeset 0 2014ca87e772
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandling_plat/image_handling_library_api/inc/IHLImageFactory.h	Tue Jan 26 15:18:05 2010 +0200
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) 2004-2007 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:  Static factory class for creating image instances.
+*
+*/
+
+
+#ifndef IHLIMAGEFACTORY_H
+#define IHLIMAGEFACTORY_H
+
+// INCLUDES
+#include <e32std.h>
+
+// FORWARD DECLARATION
+class RFs;
+class RFile;
+class MIHLFileImage;
+
+// CLASS DECLARATION
+/**
+*  IHLImageFactory
+*
+*  Static factory class for creating file instances.
+*  @lib IHL.lib
+*  @since 3.0
+*/
+class IHLImageFactory
+    {
+    public:
+
+        /**
+        * Open file and create new image instance.
+		* Default filemode is EFileShareReadersOnly and if opening fails, EFileShareAny is used.
+		* Method leaves with appropriate error code if file could not be opened.
+		* If file is multi-image, new image contains handle to the first image.
+        *
+		* Note! Method may leave with KErrBadHandle if RFs::ShareProtected() method is not called!
+        *
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aFilename Full path of image file.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFs& aFs, const TDesC& aFilename );
+
+        /**
+        * Open file and create new image instance.
+		* Default filemode is EFileShareReadersOnly and if opening fails, EFileShareAny is used.
+		* Method leaves with appropriate error code if
+		* file could not be opened or index is out of bounds.
+        *
+        * Note! Method may leave with KErrBadHandle if RFs::ShareProtected() method is not called!
+        *
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aFilename Full path of image file.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFs& aFs, const TDesC& aFilename,
+		                                               TInt aImageIndex );
+
+        /**
+        * Open file and create new image instance.
+		* Default filemode is EFileShareReadersOnly and if opening fails, EFileShareAny is used.
+		* Method leaves with appropriate error code if
+		* file could not be opened or index is out of bounds.
+        *
+        * Note! Method may leave with KErrBadHandle if RFs::ShareProtected() method is not called!
+        *
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aFilename Full path of image file.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @param aOptions Special opening options. Refer to MIHLFileImage header.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFs& aFs, const TDesC& aFilename,
+		                                               TInt aImageIndex, const TUint32 aOptions );
+
+        /**
+        * Create new image instance.
+		* Method leaves with appropriate error code if file type is unknown.
+        * @since 3.0
+		* @param aFile Open file handle.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFile& aFile );
+
+        /**
+        * Create new image instance.
+		* Method leaves with appropriate error code if
+		* file type is unknown or index is out of bounds.
+        * @since 3.0
+		* @param aFile Open file handle.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFile& aFile, TInt aImageIndex );
+
+        /**
+        * Create new image instance.
+		* Method leaves with appropriate error code if
+		* file type is unknown or index is out of bounds.
+        * @since 3.0
+		* @param aFile Open file handle.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @param aOptions Special opening options. Refer to MIHLFileImage header.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenFileImageL( RFile& aFile, TInt aImageIndex,
+		                                               const TUint32 aOptions );
+
+        /**
+        * Create new image instance from buffered image data.
+		* Method leaves with appropriate error code if buffer data could not be used.
+		* If buffer contains multi-image, created image instance contains handle to
+		* the first image.
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aDataBuf Buffer reference.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenBufferedFileImageL( RFs& aFs, const TDesC8& aDataBuf );
+
+        /**
+        * Create new image instance from buffered image data.
+		* Method leaves with appropriate error code if buffer data could not be used
+		* or image index is out of bounds. If buffer contains multi-image, created
+		* image instance contains handle to the first image.
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aDataBuf Buffer reference.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenBufferedFileImageL( RFs& aFs, const TDesC8& aDataBuf,
+		                                                       TInt aImageIndex );
+
+        /**
+        * Create new image instance from buffered image data.
+		* Method leaves with appropriate error code if buffer data could not be used
+		* or image index is out of bounds. If buffer contains multi-image, created
+		* image instance contains handle to the first image.
+        * @since 3.0
+		* @param aFs Fileserver reference.
+		* @param aDataBuf Buffer reference.
+		* @param aImageIndex Image index. This is used in multi-image
+		*                    file to determine which image is opened.
+		* @param aOptions Special opening options. Refer to MIHLFileImage header.
+		* @return New image instance.
+		*/
+		IMPORT_C static MIHLFileImage* OpenBufferedFileImageL( RFs& aFs, const TDesC8& aDataBuf,
+		                                               TInt aImageIndex, const TUint32 aOptions );
+
+	};
+
+#endif   // IHLIMAGEFACTORY_H
+
+// End of File