imagehandling_plat/image_handling_library_api/inc/IHLBitmapUtil.h
changeset 0 2014ca87e772
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     1 /*
       
     2 * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Static utility class for synchronous CFbsBitmap operations.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef IHLBITMAPUTIL_H
       
    20 #define IHLBITMAPUTIL_H
       
    21 
       
    22 // INCLUDES
       
    23 #include <e32std.h>
       
    24 
       
    25 // FORWARD DECLARATION
       
    26 class CFbsBitmap;
       
    27 
       
    28 // CLASS DECLARATION
       
    29 /**
       
    30 *  IHLBitmapUtil
       
    31 *
       
    32 *  Static utility class for synchronous CFbsBitmap operations.
       
    33 *  @lib IHL.lib
       
    34 *  @since 3.0
       
    35 */
       
    36 class IHLBitmapUtil
       
    37     {
       
    38     public:
       
    39 
       
    40         /**
       
    41         * Create new bitmap instance using
       
    42 		* same server handle as in given bitmap.
       
    43 		* Note that modifying bitmap content will also change
       
    44 		* all other bitmap content that has same server handle.
       
    45         * @since 3.0
       
    46 		* @param aBitmap Duplicated bitmap reference.
       
    47 		* @return Duplicated CFbsBitmap instance.
       
    48 		*/
       
    49 		IMPORT_C static CFbsBitmap* DuplicateBitmapL( const CFbsBitmap& aBitmap );
       
    50 
       
    51         /**
       
    52         * Create new bitmap instance using
       
    53 		* same server handle as in given bitmap.
       
    54 		* Note that modifying bitmap content will also change
       
    55 		* all other bitmap content that has same server handle.
       
    56 		* New instance is pushed into CleanupStack.
       
    57         * @since 3.0
       
    58 		* @param aBitmap Duplicated bitmap reference.
       
    59 		* @return Duplicated CFbsBitmap instance.
       
    60 		*/
       
    61 		IMPORT_C static CFbsBitmap* DuplicateBitmapLC( const CFbsBitmap& aBitmap );
       
    62 
       
    63         /**
       
    64         * Copy bitmap into new same sized bitmap.
       
    65 		* New bitmap has unique server handle and it can be
       
    66 		* modified without risk of changes in given source bitmap.
       
    67         * @since 3.0
       
    68 		* @param aBitmap Copied bitmap reference.
       
    69 		* @return Copied CFbsBitmap instance.
       
    70 		*/
       
    71 		IMPORT_C static CFbsBitmap* CopyBitmapL( const CFbsBitmap& aBitmap );
       
    72 
       
    73         /**
       
    74         * Copy bitmap into new same sized bitmap.
       
    75 		* New bitmap has unique server handle and it can be
       
    76 		* modified without risk of changes in given source bitmap.
       
    77 		* New instance is pushed into CleanupStack.
       
    78         * @since 3.0
       
    79 		* @param aBitmap Copied bitmap reference.
       
    80 		* @return Copied CFbsBitmap instance.
       
    81 		*/
       
    82 		IMPORT_C static CFbsBitmap* CopyBitmapLC( const CFbsBitmap& aBitmap );
       
    83 
       
    84         /**
       
    85         * Copy user defined area from source bitmap into new bitmap.
       
    86 		* New bitmap has unique server handle and it can be
       
    87 		* modified without risk of changes in given source bitmap.
       
    88         * @since 3.0
       
    89 		* @param aBitmap Source bitmap reference.
       
    90 		* @param aRect Copied rectangle from source bitmap.
       
    91 		* @return Copied CFbsBitmap instance, size of given rect.
       
    92 		*/		
       
    93 		IMPORT_C static CFbsBitmap* CopyBitmapL( const CFbsBitmap& aBitmap, const TRect& aRect );
       
    94 
       
    95         /**
       
    96         * Copy user defined area from source bitmap into new bitmap.
       
    97 		* New bitmap has unique server handle and it can be
       
    98 		* modified without risk of changes in given source bitmap.
       
    99 		* New instance is pushed into CleanupStack.
       
   100         * @since 3.0
       
   101 		* @param aBitmap Source bitmap reference.
       
   102 		* @param aRect Copied rectangle from source bitmap.
       
   103 		* @return Copied CFbsBitmap instance, size of given rect.
       
   104 		*/		
       
   105 		IMPORT_C static CFbsBitmap* CopyBitmapLC( const CFbsBitmap& aBitmap, const TRect& aRect );
       
   106 
       
   107         /**
       
   108 		* Synchronous bitmap scaler. Use only with small bitmaps!
       
   109 		* Prefer asynchronous MIHLScaler instead.
       
   110 		*
       
   111         * Scale source bitmap into destination bitmap.
       
   112         * @since 3.0
       
   113         * @param aSrcBitmap Source bitmap reference.
       
   114         * @param aDstBitmap Destination bitmap reference.
       
   115 		*                   If destination bitmap has null handle,
       
   116 		*                   processor will create new bitmap using size of
       
   117 		*                   destination rectangle.
       
   118         * @param aOptions Reserved for future use.
       
   119 		* @return Return system wide error codes:
       
   120 		*         KerrArgument - source bitmap is empty (handle is null).
       
   121 		*                      - destination bitmap displaymode differs
       
   122 		*                        from source bitmap displaymode.
       
   123 		*/
       
   124         IMPORT_C static TInt ScaleBitmap( const CFbsBitmap& aSrcBitmap, CFbsBitmap& aDstBitmap,
       
   125 										  TUint32 aOptions = 0 );
       
   126 
       
   127         /**
       
   128 		* Synchronous bitmap scaler. Use only with small bitmaps!
       
   129 		* Prefer asynchronous MIHLScaler instead.
       
   130 		*
       
   131         * Scale rectangle from source bitmap to a rectangle
       
   132 		* in destination bitmap. Scaled area can be also
       
   133 		* rotated and/or mirrored during process.
       
   134 		* See full usage description from MIHLScaler header.
       
   135         * @since 3.0
       
   136         * @param aSrcBitmap Source bitmap reference.
       
   137         * @param aSrcRect Rectangle that is processed from source bitmap.
       
   138         * @param aDstBitmap Destination bitmap reference.
       
   139 		*                   If destination bitmap has null handle,
       
   140 		*                   processor will create new bitmap using size of
       
   141 		*                   destination rectangle.
       
   142         * @param aDstRect Rectangle that is filled in destination bitmap.
       
   143         * @param aOptions Reserved for future use.
       
   144 		* @return Return system wide error codes:
       
   145 		*         KerrArgument - rectangles are outside of bitmap area.
       
   146 		*                      - source bitmap is empty (handle is null).
       
   147 		*                      - destination bitmap displaymode differs
       
   148 		*                        from source bitmap displaymode.
       
   149 		*/
       
   150         IMPORT_C static TInt ScaleBitmap( const CFbsBitmap& aSrcBitmap, const TRect& aSrcRect,
       
   151 										  CFbsBitmap& aDstBitmap, const TRect& aDstRect,
       
   152 										  TUint32 aOptions = 0 );
       
   153 	};
       
   154 
       
   155 #endif // IHLBITMAPUTIL_H
       
   156 
       
   157 // End of File