svgtopt/SVG/SVGImpl/inc/SVGPointLexer.h
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     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 // TSvgPointLexer:
       
    20 // Parse a text string and returns a set of coordinates and the last character
       
    21 // before the coordinates. e.g. " M100, 30.2" -> 'M', 100.0 and 30.2
       
    22 //
       
    23 #ifndef __TSVGPOINTLEXER_H__
       
    24 #define __TSVGPOINTLEXER_H__
       
    25 
       
    26 #include <e32std.h>
       
    27 #include "GfxFloatFixPt.h"
       
    28 
       
    29 
       
    30 /**
       
    31  * Class description goes here.
       
    32  *
       
    33  *  @lib SVGEngine.lib
       
    34  *  @since 1.0
       
    35  */
       
    36 class TSvgPointLexer
       
    37     {
       
    38     public:
       
    39 
       
    40         /**
       
    41          * Need method description
       
    42          *
       
    43          * @since 1.0
       
    44          * @param
       
    45          * @return
       
    46          */
       
    47         TSvgPointLexer( const TDesC& aDes );
       
    48 
       
    49         /**
       
    50          * Need method description
       
    51          *
       
    52          * @since 1.0
       
    53          * @param
       
    54          * @return
       
    55          */
       
    56         TInt32  GetNextPoint( TChar& aCommand, TFloatFixPt& aX, TFloatFixPt& aY );
       
    57 
       
    58         /**
       
    59          * Need method description
       
    60          *
       
    61          * @since 1.0
       
    62          * @param
       
    63          * @return
       
    64          */
       
    65         TInt32  GetNext( TChar& aCommand, TFloatFixPt& aVal );
       
    66 
       
    67 		/**
       
    68          * Need method description
       
    69          *
       
    70          * @since 1.0
       
    71          * @param
       
    72          * @return
       
    73          */
       
    74 		TBool GetNextWithNumOfPoints( TFloatFixPt *aVal, TInt NoOfPoints);
       
    75 		/**
       
    76          * Need method description
       
    77          *
       
    78          * @since 1.0
       
    79          * @param
       
    80          * @return
       
    81          */
       
    82 		TBool GetCommand(TUint8 &a);
       
    83 
       
    84 
       
    85         /**
       
    86          * Need method description
       
    87          *
       
    88          * @since 1.0
       
    89          * @param
       
    90          * @return
       
    91          */
       
    92         TBool   IsDone()
       
    93 			{
       
    94 			// skip any space to see that this is the last character. ADDED BY RAVINDER
       
    95 			iLex.SkipSpace();
       
    96 			// END OF ADDITION.
       
    97             return iLex.Eos();
       
    98             };
       
    99 
       
   100         void Cleanup();
       
   101     private:
       
   102         TLex    iLex;
       
   103 
       
   104         /**
       
   105          * Need method description
       
   106          *
       
   107          * @since 1.0
       
   108          * @param
       
   109          * @return
       
   110          */
       
   111         TChar   SkipUntilNum();
       
   112 
       
   113 		/**
       
   114          * Need method description
       
   115          *
       
   116          * @since 1.0
       
   117          * @param
       
   118          * @return
       
   119          */
       
   120 		TBool SkipToNumEndWithoutLex(TReal32 &aNum);
       
   121 
       
   122         /**
       
   123          * Need method description
       
   124          *
       
   125          * @since 1.0
       
   126          * @param
       
   127          * @return
       
   128          */
       
   129         TBool   SkipToNumEnd();
       
   130 		/**
       
   131          * Need method description
       
   132          *
       
   133          * @since 1.0
       
   134          * @param
       
   135          * @return
       
   136          */
       
   137         TBool   iNegativeNumber;
       
   138 		TUint16	*iData;
       
   139         TUint16 *iDataEnd;
       
   140 
       
   141         HBufC* iDataCopy;
       
   142     };
       
   143 
       
   144 #endif // __TSvgPointLexer_H__