svgtopt/SVG/SVGEngine/inc/SVGAttributeVerifier.h
changeset 46 88edb906c587
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-1:000000000000 46:88edb906c587
       
     1 /*
       
     2 * Copyright (c) 2003 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:  SVG Implementation header file
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef _INC_CSVGATTRIBUTEVERIFIER_
       
    20 #define _INC_CSVGATTRIBUTEVERIFIER_
       
    21 
       
    22 #if !defined(__E32BASE_H__)
       
    23 #include <e32base.h>
       
    24 #endif
       
    25 
       
    26 
       
    27 #include <badesca.h>
       
    28 
       
    29 #define KSVG_COORDINATE_TYPE 2
       
    30 #define KSVG_LENGTH_TYPE 1
       
    31 const TInt KMax16BitValue = 32765;
       
    32 
       
    33 /**
       
    34  * This class provides methods to verify attributes values, to reorder
       
    35  * the attributes and to check for required attributes for specific elements,
       
    36  *
       
    37  *  @lib SVGEngine.lib
       
    38  *  @since 1.0
       
    39  */
       
    40 class CSvgAttributeVerifier : public CBase
       
    41 {
       
    42     public:
       
    43 
       
    44 
       
    45 		 /**
       
    46          * Parse the given string for a decimal value.
       
    47          *
       
    48          * @since 1.0
       
    49          * @param aNumberString : decimal value string
       
    50          * @param aValueStorage : value storage
       
    51          * @return ETrue if string is a valid decimal value.
       
    52 		 */
       
    53 		static TBool ParseForDecimalValue( const TDesC& aNum2Str, TReal32& aValue, const TDesC& aAttrValue, TBool isSvgElement );
       
    54 
       
    55 		/**
       
    56 		 * Verify the range of the value of an attribute based on its type
       
    57 		 * The string value is converted into the required type and passed back to
       
    58 		 * the calling function
       
    59 		 * @since 1.0
       
    60 		 * @param aValues   : value of the attribute
       
    61 		 * @param aConvVal  : reference parameter to return the converted value
       
    62 		 * @param aDatatype : flag to determine the type of datatype
       
    63 		 * @return ETrue if string is a valid decimal value and lies in a valid range.
       
    64 		 */
       
    65 
       
    66 		static TBool ValidAttrValue	(
       
    67 		    const TDesC& aValue,
       
    68 			TReal32& aConvVal,
       
    69 			TUint8 aDatatype,
       
    70 			const TDesC& aAttrValue,
       
    71 			TBool isSvgElement
       
    72             );
       
    73 };
       
    74 
       
    75 #endif