imagehandling_plat/thumbnailmanager_api/inc/thumbnailobjectsource.h
changeset 0 2014ca87e772
child 30 b67379558a75
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandling_plat/thumbnailmanager_api/inc/thumbnailobjectsource.h	Tue Jan 26 15:18:05 2010 +0200
@@ -0,0 +1,322 @@
+/*
+* Copyright (c) 2006-2007 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:  Class for encapsulating the data source for objects.
+ *
+*/
+
+
+#ifndef THUMBNAILOBJECTSOURCE_H
+#define THUMBNAILOBJECTSOURCE_H
+
+#include <e32base.h>
+#include <f32file.h>
+
+typedef TUint32 TThumbnailId;
+
+class CFbsBitmap;
+
+/**
+ *  Object source for thumbnails.
+ *
+ *  Class for encapsulating the data source for objects.
+ *
+ *  @since S60 v5.0
+ */
+NONSHARABLE_CLASS( CThumbnailObjectSource ): public CBase
+    {
+public:
+    /**
+     * Construct a new CThumbnailObjectSource referring to an URI.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewL( const TDesC& aUri, const
+        TDesC& aMimeType = KNullDesC );
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to an URI.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewLC( const TDesC& aUri, const
+        TDesC& aMimeType = KNullDesC );
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to a file handle.
+     * The file handle must refer to an open file and it must remain
+     * valid until this object source is deleted.
+     *
+     * @param aFile     File handle.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewL( const RFile64& aFile, const
+        TDesC& aMimeType = KNullDesC );
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to a file handle.
+     * The file handle must refer to an open file and it must remain
+     * valid until this object source is deleted.
+     *
+     * @param aFile     File handle.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewLC( const RFile64& aFile, const
+        TDesC& aMimeType = KNullDesC );
+
+    /**
+     * Destructor
+     *
+     * @since S60 v5.0
+     */
+    virtual ~CThumbnailObjectSource();
+
+public:
+
+    /**
+     * Returns file handle.
+     *
+     * @since S60 v5.0
+     * @return reference to file handle
+     */
+    IMPORT_C RFile64& FileHandle();
+
+    /**
+     * Returns source uri.
+     *
+     * @since S60 v5.0
+     * @return uri
+     */
+    IMPORT_C const TDesC& Uri();
+
+private:
+
+    /**
+     * C++ default constructor
+     *
+     * @since S60 v5.0
+     */
+    CThumbnailObjectSource();
+
+    /**
+     * Symbian 2nd phase constructor can leave.
+     *
+     * @since S60 v5.0
+     * @param aUri Object URI or a full path to a file in the file system.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     */
+    void ConstructL( const TDesC& aUri, const TDesC& aMimeType );
+
+    /**
+     * Symbian 2nd phase constructor can leave.
+     *
+     * @since S60 v5.0
+     * @param aFile File handle.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     */
+    void ConstructL( const RFile64& aFile, const TDesC& aMimeType );
+
+private:
+    // data
+
+    /**
+     * File
+     */
+    RFile64 iFile;
+
+    /**
+     * Uri
+     */
+    HBufC* iUri; // own
+
+    /**
+     * Mime type
+     */
+    HBufC8* iMimeType; // own
+    
+    /**
+     * Buffer
+     */
+    TDesC8* iBuffer; // own
+    
+    /**
+     * Bitmap
+     */
+
+    CFbsBitmap* iBitmap; // own
+    
+    /**
+     * ThumbnailId
+     */
+    
+    TThumbnailId iThumbnailId; //own
+	
+public:
+    /**
+     * Symbian 2nd phase constructor can leave.
+     *
+     * @since S60 v5.0
+     * @param aURI URI.
+     * @param aMimeType MimeType.
+     * @param aThumbnailId ThumbnailId
+     */
+	void ConstructL( const TDesC& aUri, const TDesC& aMimeType, TThumbnailId aThumbnailId );
+	    
+    /**
+     * Construct a new CThumbnailObjectSource referring to a buffer 
+     * containing an image.
+     *
+     * @param aBuffer   Buffer.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */    
+    IMPORT_C static CThumbnailObjectSource* NewL( CFbsBitmap*  aBitmap, const TDesC& aUri );
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to a buffer 
+     * containing an image.
+     *
+     * @param aFile     File handle.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */        
+    IMPORT_C static CThumbnailObjectSource* NewLC( CFbsBitmap*  aBitmap, const TDesC& aUri );
+ 
+    /**
+     * Construct a new CThumbnailObjectSource referring to a buffer 
+     * containing an image.
+     *
+     * @param aBuffer   Buffer.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */       
+    IMPORT_C static CThumbnailObjectSource* NewL( TDesC8* aBuffer,  TDesC& aMimeType, const TDesC& aUri );
+    
+    /**
+     * Construct a new CThumbnailObjectSource referring to a buffer 
+     * containing an image.
+     *
+     * @param aBuffer   Buffer.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */       
+    IMPORT_C static CThumbnailObjectSource* NewLC( TDesC8* aBuffer,  TDesC& aMimeType, const TDesC& aUri);
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to an URI.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewL( const TDesC& aUri, 
+            TThumbnailId aThumbnailId = 0, const TDesC& aMimeType = KNullDesC );
+
+    /**
+     * Construct a new CThumbnailObjectSource referring to an URI.
+     * @param aUri      Object URI or a full path to a file in the file system.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @since S60 v5.0
+     * @return New CThumbnailObjectSource instance.
+     */
+    IMPORT_C static CThumbnailObjectSource* NewLC( const TDesC& aUri,
+            TThumbnailId aThumbnailId = 0, const TDesC& aMimeType = KNullDesC );
+    
+	 
+    /**
+     * Returns source buffer.
+     *
+     * @since S60 v5.0
+     * @return buffer
+     */  
+    IMPORT_C TDesC8* Buffer();
+    
+    /**
+     * Gets ownership of buffer from source object.
+     * After that Buffer() returns NULL.
+     *
+     * @since S60 v5.0
+     * @return buffer
+     */
+    IMPORT_C TDesC8* GetBufferOwnership();
+    
+    /**
+     * Gets MIME type.
+     *
+     * @since S60 v5.0
+     * @return MIME type
+     */   
+    IMPORT_C const TDesC8& MimeType();
+    
+    /**
+     * Gets ThumbnailId.
+     *
+     * @since S60 v5.0
+     * @return ThumbnailId 
+     */ 
+    
+    IMPORT_C TThumbnailId Id(); 
+	    
+    /**
+     * Symbian 2nd phase constructor can leave.
+     *
+     * @since S60 v5.0
+     * @param aBitmap Bitmap.
+     * @param aURI URI.
+     */   
+    void ConstructL( CFbsBitmap* aBitmap, const TDesC&
+            aUri );
+
+    /**
+     * Symbian 2nd phase constructor can leave.
+     *
+     * @since S60 v5.0
+     * @param aBuffer Buffer.
+     * @param aMimeType MIME type. Optional, but should be specified if known.
+     * @param aURI URI.
+     */
+    void ConstructL( TDesC8* aBuffer, const TDesC&
+        aMimeType, const TDesC& aUri );
+    
+    /**
+     * Returns source bitmap.
+     *
+     * @since S60 v5.0
+     * @return bitmap
+     */  
+    IMPORT_C CFbsBitmap* Bitmap();
+    
+    /**
+     * Gets ownership of bitmap from source object.
+     * After that Bitmap() returns NULL.
+     *
+     * @since S60 v5.0
+     * @return bitmap
+     */
+    IMPORT_C CFbsBitmap* GetBitmapOwnership();
+};
+
+#endif // THUMBNAILOBJECTSOURCE_H