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1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Segmentation and reassembly utility classes |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @file |
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20 */ |
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21 |
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22 #ifndef __GSMUSAR_H__ |
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23 #define __GSMUSAR_H__ |
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24 |
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25 #include <charconv.h> |
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26 #include <gsmubuf.h> |
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27 #include <gsmuelem.h> |
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28 |
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29 /** |
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30 * @internalComponent |
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31 */ |
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32 _LIT8(KMOSES,"\x40\x4d\x64\xd3\x50\x00"); |
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33 /** |
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34 * @internalComponent |
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35 */ |
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36 _LIT16(KNETWORK,"NETWORK"); |
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37 |
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38 |
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39 // Constants |
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40 /** |
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41 * @internalComponent |
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42 */ |
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43 const TUint8 KSms7BitAlphabetEscapeChar=0x1b; |
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44 |
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45 |
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46 /** |
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47 * Segments unpacked data from a CsmsBufferBase |
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48 * @internalComponent |
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49 */ |
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50 class CSmsBufferSegmenter : public CBase |
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51 { |
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52 friend class CSmsUserData; |
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53 public: |
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54 // Construction / destruction methods |
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55 IMPORT_C static CSmsBufferSegmenter* NewLC(CSmsAlphabetConverter& aAlphabetConverter,const CSmsBufferBase& aBuffer,TInt aSegmentSize=0); |
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56 IMPORT_C ~CSmsBufferSegmenter(); |
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57 |
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58 // Segmentation methods |
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59 void Reset(); |
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60 IMPORT_C TBool SegmentNextL(TDes8& aSegmentBuffer, TInt& aUnconvertedChars, |
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61 TInt& aDowngradedChars, |
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62 TSmsEncoding aEncoding); |
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63 IMPORT_C TInt TotalConvertedLengthL(TSmsEncoding aEncoding); |
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64 TBool MoreL(); |
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65 |
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66 TSmsEncoding FindBestAlternativeEncodingL(TSmsEncoding aSuggestedEncoding, |
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67 TInt aMaxBodyLength) const; |
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68 |
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69 protected: |
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70 // Protected construction methods |
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71 CSmsBufferSegmenter(CSmsAlphabetConverter& aAlphabetConverter,const CSmsBufferBase& aBuffer,TInt aSegmentSize); |
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72 void ConstructL(); |
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73 |
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74 // Protected helper methods |
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75 virtual TBool DoSegmentNextL(TDes8& aSegmentBuffer,TInt aSegmentSize, |
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76 TInt& aUnconvertedChars, TInt& aDowngradedChars, |
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77 TSmsEncoding aEncoding); |
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78 void CheckConvertedBufferAllocL(TInt aMaxLength); |
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79 TInt ElementsToReturnFromConvertedBufferL(TInt aSegmentSize); |
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80 |
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81 protected: |
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82 // Private data |
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83 CSmsAlphabetConverter& iAlphabetConverter; |
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84 const CSmsBufferBase& iSmsBuffer; |
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85 TInt iElementsExtracted; |
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86 TInt iSegmentSize; |
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87 HBufC8* iConvertedBuffer; |
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88 TPtr8 iConvertedBufferPtr; |
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89 }; |
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90 |
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91 |
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92 /** |
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93 * @internalComponent |
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94 */ |
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95 class CSmsEMSBufferSegmenter : public CSmsBufferSegmenter |
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96 { |
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97 public: |
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98 IMPORT_C static CSmsEMSBufferSegmenter* NewLC(CSmsAlphabetConverter& aAlphabetConverter,const CSmsBufferBase& aBuffer, TInt aSegmentSize=0); |
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99 |
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100 IMPORT_C TBool SegmentNextL(TDes8& aSegmentBuffer,TInt aSegmentSize, |
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101 TInt& aUnconvertedChars, TInt& aDowngradedChars, |
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102 TSmsEncoding aEncoding); |
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103 |
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104 TInt SegmentL(TDes8& aSegmentBuffer, TInt aNativeChars, TInt aSegmentMax, |
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105 TInt& aUnconvertedChars, TInt& aDowngradedChars, |
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106 TSmsEncoding aEncoding); |
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107 |
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108 protected: |
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109 CSmsEMSBufferSegmenter(CSmsAlphabetConverter& aAlphabetConverter,const CSmsBufferBase& aBuffer,TInt aSegmentSize); |
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110 |
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111 }; |
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112 |
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113 |
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114 /** |
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115 * TSmsBufferReassembler - reassembles (unpacked) data to CSmsBufferBase |
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116 * @internalComponent |
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117 */ |
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118 class TSmsBufferReassembler |
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119 { |
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120 public: |
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121 // Construction / destruction methods |
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122 IMPORT_C TSmsBufferReassembler(CSmsAlphabetConverter& aAlphabetConverter,CSmsBufferBase& aBuffer); |
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123 |
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124 // Reassembly methods |
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125 IMPORT_C void ReassembleNextL(const TDesC8& aSegmentBuffer, |
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126 TSmsEncoding aEncoding, TBool aIsLast); |
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127 |
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128 private: |
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129 CSmsAlphabetConverter& iAlphabetConverter; |
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130 CSmsBufferBase& iSmsBuffer; |
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131 }; |
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132 |
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133 #endif // __GSMUSAR_H__ |