|
1 /* |
|
2 * Copyright (c) 2008 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: stringbuffer class implementation |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 #include "stringbuffer.h" |
|
20 |
|
21 ////////////////////////////////////////////////////////////////////////////// |
|
22 // |
|
23 // NewL Method to create a new StringBuffer object |
|
24 // @return StringBuffer* |
|
25 // |
|
26 ////////////////////////////////////////////////////////////////////////////// |
|
27 |
|
28 StringBuffer* StringBuffer::NewL() |
|
29 { |
|
30 StringBuffer* self = new(ELeave) StringBuffer; |
|
31 CleanupStack::PushL(self); |
|
32 self->ConstructL(); |
|
33 CleanupStack::Pop(self); |
|
34 return self; |
|
35 } |
|
36 |
|
37 ////////////////////////////////////////////////////////////////////////////// |
|
38 // |
|
39 // Constructor Method |
|
40 // |
|
41 ////////////////////////////////////////////////////////////////////////////// |
|
42 StringBuffer::StringBuffer() |
|
43 { |
|
44 |
|
45 } |
|
46 |
|
47 ////////////////////////////////////////////////////////////////////////////// |
|
48 // |
|
49 // ConstructL to create the String object which stores the data |
|
50 // |
|
51 ////////////////////////////////////////////////////////////////////////////// |
|
52 void StringBuffer::ConstructL() |
|
53 { |
|
54 String = HBufC::NewL(KInitialSize); |
|
55 } |
|
56 |
|
57 ////////////////////////////////////////////////////////////////////////////// |
|
58 // |
|
59 // AppendText Method to append the content of an HBufC object to the |
|
60 // StringBuffer's content |
|
61 // @param HBufC* |
|
62 // |
|
63 ////////////////////////////////////////////////////////////////////////////// |
|
64 |
|
65 void StringBuffer::Append(HBufC* what) |
|
66 { |
|
67 TInt _size = what->Length(); |
|
68 if ((String->Des().MaxLength() - String->Size()) < _size) |
|
69 { |
|
70 String = String->ReAlloc(String->Des().MaxLength() + 2 * _size); |
|
71 } |
|
72 String->Des().Append(what->Des()); |
|
73 } |
|
74 |
|
75 ////////////////////////////////////////////////////////////////////////////// |
|
76 // |
|
77 // GetString Method to get the content of the StringBuffer |
|
78 // @return HBufC * |
|
79 // |
|
80 ////////////////////////////////////////////////////////////////////////////// |
|
81 |
|
82 HBufC* StringBuffer::GetString() |
|
83 { |
|
84 return String; |
|
85 } |
|
86 ////////////////////////////////////////////////////////////////////////////// |
|
87 // |
|
88 // Append Method to append the content of a TDesC object to the |
|
89 // StringBuffer's content |
|
90 // @param TDesC |
|
91 // |
|
92 ////////////////////////////////////////////////////////////////////////////// |
|
93 |
|
94 void StringBuffer::Append(const TDesC &what) |
|
95 { |
|
96 TInt _size = what.Length(); |
|
97 if ((String->Des().MaxLength() - String->Size()) < _size) |
|
98 { |
|
99 String = String->ReAlloc(String->Des().MaxLength() + 2 * _size); |
|
100 } |
|
101 String->Des().Append(what); |
|
102 } |
|
103 |
|
104 ////////////////////////////////////////////////////////////////////////////// |
|
105 // |
|
106 // Append Method to append a TInt object to the StringBuffer's content |
|
107 // @param TInt |
|
108 // |
|
109 ////////////////////////////////////////////////////////////////////////////// |
|
110 void StringBuffer::Append(TInt aWhat) |
|
111 { |
|
112 TBufC<KBUFMAX> Temp; |
|
113 Temp.Des().AppendNum(aWhat); |
|
114 TInt _size = Temp.Des().Length(); |
|
115 if ((String->Des().MaxLength() - String->Size()) < _size) |
|
116 { |
|
117 String = String->ReAlloc(String->Des().MaxLength() + 2 * _size); |
|
118 } |
|
119 String->Des().Append(Temp); |
|
120 } |
|
121 ////////////////////////////////////////////////////////////////////////////// |
|
122 // |
|
123 // CreateJavaString Method to create java string from an HBufC |
|
124 // @param aJNI JNIEnv* |
|
125 // @param aString HBufC |
|
126 // @return jstring |
|
127 // |
|
128 ////////////////////////////////////////////////////////////////////////////// |
|
129 |
|
130 jstring StringBuffer::CreateJavaString(JNIEnv* aJNI, const HBufC* aString) |
|
131 { |
|
132 TPtrC16 buf; |
|
133 jstring str = aJNI->NewString(aString->Ptr(), aString->Length()); |
|
134 return str; |
|
135 } |
|
136 ////////////////////////////////////////////////////////////////////////////// |
|
137 // |
|
138 // CreateHBufCFromJavaStringLC Method to cretae HBufC from a java string |
|
139 // @param JNIEnv* |
|
140 // @param jstring aString |
|
141 // @return HBufC* |
|
142 // |
|
143 ////////////////////////////////////////////////////////////////////////////// |
|
144 |
|
145 HBufC* StringBuffer::CreateHBufCFromJavaStringLC(JNIEnv* aJNI, jstring aString) |
|
146 { |
|
147 HBufC16* Str = HBufC16::NewL(aJNI->GetStringLength(aString)); |
|
148 CleanupStack::PushL(Str); |
|
149 const TUint16* temp = aJNI->GetStringChars(aString, 0); |
|
150 Str->Des() = temp; |
|
151 aJNI->ReleaseStringChars(aString, temp); |
|
152 return Str; |
|
153 } |
|
154 |
|
155 ////////////////////////////////////////////////////////////////////////////// |
|
156 // |
|
157 // ToJavaString Method to create java string from the content of the |
|
158 // StringBuffer. |
|
159 // @param JNIEnv |
|
160 // @return jstring |
|
161 // |
|
162 ////////////////////////////////////////////////////////////////////////////// |
|
163 |
|
164 jstring StringBuffer::ToJavaString(JNIEnv* aJNI) |
|
165 { |
|
166 jstring str = aJNI->NewString(String->Ptr(), String->Length()); |
|
167 return str; |
|
168 } |
|
169 |
|
170 ////////////////////////////////////////////////////////////////////////////// |
|
171 // |
|
172 // Destructor |
|
173 // |
|
174 ////////////////////////////////////////////////////////////////////////////// |
|
175 |
|
176 StringBuffer::~StringBuffer() |
|
177 { |
|
178 delete String; |
|
179 String = NULL; |
|
180 } |