2 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
4 // Licensed under the Apache License, Version 2.0 (the License);
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
18 * @file FTextLatin1Encoding.h
19 * @brief This is the header file for the %Latin1Encoding class.
21 * This header file contains the declarations of the %Latin1Encoding class.
22 * This class is derived from the Encoding class.
24 #ifndef _FTEXT_LATIN1_ENCODING_H_
25 #define _FTEXT_LATIN1_ENCODING_H_
27 #include <FTextEncoding.h>
30 namespace Tizen { namespace Text
33 * @class Latin1Encoding
34 * @brief This class is an implementation of the Latin1 encoding.
38 * @final This class is not intended for extension.
40 * The %Latin1Encoding class is an implementation of the Latin1 encoding.
41 * ISO Latin-1 is a superset of the American Standard Code for Information Interchange(ASCII) character set and is very similar to the American National Standards Institute (ANSI) character set used in Windows,
42 * though the two are not identical.
43 * Latin1 also serves as the basis for the ANSI character set of MS Windows.
44 * Only the characters in ISO Latin-1 are guaranteed to be supported on an Internet website.
45 * When a %Web browser, such as Internet Explorer or Firefox formats a %Web page on a client system, such as
46 * Windows, it maps the ISO Latin-1 characters as best it can into the default character set.
48 * For more information on the class features, see <a href="../org.tizen.native.appprogramming/html/guide/text/converting_all_text_data.htm">Converting All Text Data at Once</a>.
50 * The following example demonstrates how to use the %Latin1Encoding class.
56 * using namespace Tizen::Base;
57 * using namespace Tizen::Text;
60 * MyClass::Latin1EncodingSample(void)
62 * Latin1Encoding latin1;
64 * String str(L"Latin1Test \u00A1\u00A2");
67 * latin1.GetByteCount(str, byteCount);
70 * ByteBuffer* pBuffer = latin1.GetBytesN(str);
73 * latin1.GetCharCount(*pBuffer, charCount);
77 * latin1.GetString(*pBuffer, decodedStr);
79 * if (str.Equals(decodedStr))
89 class _OSP_EXPORT_ Latin1Encoding
94 * This is the default constructor for this class.
101 * This is the destructor for this class. @n
102 * This destructor overrides Tizen::Text::Encoding::~Encoding().
106 virtual ~Latin1Encoding(void);
109 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer.
113 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
114 * else @c null if an exception occurs @n
115 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
116 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
117 * @exception E_SUCCESS The method is successful.
118 * @exception E_OUT_OF_MEMORY The memory is insufficient.
119 * @exception E_INVALID_ARG The specified @c chars is empty or invalid.
120 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
121 * @remarks The specific error code can be accessed using the GetLastResult() method.
124 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::WcharBuffer& chars) const;
127 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer.
131 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
132 * else @c null if an exception occurs @n
133 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
134 * @param[in] str A string to encode
135 * @exception E_SUCCESS The method is successful.
136 * @exception E_OUT_OF_MEMORY The memory is insufficient.
137 * @exception E_INVALID_ARG The specified @c str is empty or invalid.
138 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
139 * @remarks The specific error code can be accessed using the GetLastResult() method.
142 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::String& str) const;
145 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
146 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
150 * @return An error code
151 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
152 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
153 * @param[in] charCount The total number of characters to encode
154 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
155 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
156 * @exception E_SUCCESS The method is successful.
157 * @exception E_OUT_OF_MEMORY The memory is insufficient.
158 * @exception E_INVALID_ARG A specified input parameter is invalid, or
159 * the specified @c chars or @c bytes is empty.
160 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
161 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c chars.
162 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
163 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c chars.
164 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
165 * the specified @c bytes does not contain sufficient space to store the encoded characters.
166 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
167 * @remarks This method encodes a range of characters in Tizen::Base::WcharBuffer into a range of bytes in Tizen::Base::ByteBuffer.
170 virtual result GetBytes(const Tizen::Base::WcharBuffer& chars, int charIndex, int charCount,
171 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
174 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
175 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
179 * @return An error code
180 * @param[in] str A string to encode
181 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
182 * @param[in] charCount The total number of characters to encode
183 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
184 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
185 * @exception E_SUCCESS The method is successful.
186 * @exception E_OUT_OF_MEMORY The memory is insufficient.
187 * @exception E_INVALID_ARG A specified input parameter is invalid, or
188 * the specified @c str or @c bytes is empty.
189 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
190 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c str.
191 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
192 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c str.
193 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
194 * the specified @c bytes does not contain sufficient space to store the encoded characters.
195 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
198 virtual result GetBytes(const Tizen::Base::String& str, int charIndex, int charCount,
199 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
202 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer.
206 * @return A pointer to the Tizen::Base::WcharBuffer instance where the resultant decoded data is stored, @n
207 * else @c null if an exception occurs @n
208 * The buffer limit is the position of the last decoded byte plus one and the starting position is zero.
209 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
210 * @exception E_SUCCESS The method is successful.
211 * @exception E_OUT_OF_MEMORY The memory is insufficient.
212 * @exception E_INVALID_ARG The specified @c bytes is empty.
213 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
214 * @remarks The specific error code can be accessed using the GetLastResult() method.
217 virtual Tizen::Base::WcharBuffer* GetCharsN(const Tizen::Base::ByteBuffer& bytes) const;
220 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer as per the specified range. @n
221 * The position and limit of the pointer to the %Tizen::Base::WcharBuffer instance is not changed.
225 * @return An error code
226 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
227 * @param[in] byteIndex The index from where decoding begins
228 * @param[in] byteCount The total number of bytes to decode
229 * @param[out] chars The Tizen::Base::WcharBuffer instance where the resultant decoded data is stored
230 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
231 * @exception E_SUCCESS The method is successful.
232 * @exception E_OUT_OF_MEMORY The memory is insufficient.
233 * @exception E_INVALID_ARG A specified input parameter is invalid, or
234 * the specified @c bytes or @c chars is empty.
235 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
236 * the length of the specified @c byteIndex or @c byteCount is greater than the length of the specified @c bytes.
237 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
238 * the sum of the length of the specified @c byteIndex and @c byteCount is greater than the length of the specified @c bytes.
239 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
240 * the specified @c chars does not contain sufficient space to store the decoded bytes.
241 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
244 virtual result GetChars(const Tizen::Base::ByteBuffer& bytes, int byteIndex, int byteCount,
245 Tizen::Base::WcharBuffer& chars, int charIndex = 0) const;
248 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
252 * @return An error code
253 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
254 * @param[out] str A Tizen::Base::String instance @n
255 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
256 * @exception E_SUCCESS The method is successful.
257 * @exception E_OUT_OF_MEMORY The memory is insufficient.
258 * @exception E_INVALID_ARG A specified input parameter is invalid, or
259 * the specified @c bytes is empty.
260 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
263 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, Tizen::Base::String& str) const;
266 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
270 * @return An error code
271 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
272 * @param[in] index The index from where decoding begins
273 * @param[in] count The total number of bytes to decode
274 * @param[out] str A Tizen::Base::String instance @n
275 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
276 * @exception E_SUCCESS The method is successful.
277 * @exception E_OUT_OF_MEMORY The memory is insufficient.
278 * @exception E_INVALID_ARG A specified input parameter is invalid, or
279 * the specified @c bytes is empty.
280 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
281 * the sum of the length of the specified @c index and @c count is greater than the length of the specified @c bytes.
282 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
283 * the sum of the length of the specified @c index and @c count is greater than the length of the specified @c bytes.
284 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
287 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, int index, int count, Tizen::Base::String& str) const;
291 * Gets the maximum number of bytes required for encoding a given number of characters.
295 * @return The maximum number of bytes required for encoding a given number of characters
296 * @param[in] charCount The total number of characters to encode
297 * @remarks This method determines an appropriate buffer size for the byte arrays passed to GetBytes() for encoding.
298 * @see Encoding::GetByteCount()
300 virtual int GetMaxByteCount(int charCount) const;
304 * Gets the maximum number of characters that are generated by decoding the specified number of bytes.
308 * @return The maximum number of characters generated by decoding the specified number of bytes
309 * @param[in] byteCount The total number of bytes to encode
310 * @remarks This method determines an appropriate buffer size for character arrays passed to
311 * GetChars() or a decoder for encoding.
312 * @see Encoding::GetByteCount()
314 virtual int GetMaxCharCount(int byteCount) const;
318 * Gets the encoder for the current encoding.
322 * @return A pointer to the Encoder instance for the current encoding
323 * @remarks Contrary to GetBytes(), an encoder can convert partial sequences of characters into
324 * partial sequences of bytes by maintaining the appropriate state between the conversions.
325 * Currently only Utf8Encoding supports this method. Other classes return @c null.
328 virtual Encoder* GetEncoderN(void) const;
331 * Gets the decoder for the current encoding.
335 * @return A pointer to the Decoder instance for the current encoding
336 * @remarks Contrary to GetChars(), a decoder can convert partial sequences of bytes
337 * into partial sequences of characters by maintaining the appropriate state between the conversions.
338 * Currently only Utf8Encoding supports this method. Other classes return @c null.
341 virtual Decoder* GetDecoderN(void) const;
344 * Gets the encoding type of the current instance.
348 * @return An encoding type
350 virtual Tizen::Base::String GetEncodingType(void) const;
354 * The implementation of this copy constructor is intentionally blank and declared as private to
355 * prohibit copying of objects.
357 Latin1Encoding(const Latin1Encoding& latin1Encoding);
360 * The implementation of this copy assignment operator is intentionally blank and declared as private
361 * to prohibit copying of objects.
363 Latin1Encoding& operator =(const Latin1Encoding& latin1Encoding);
365 friend class _Latin1EncodingImpl;
366 class _Latin1EncodingImpl* __pLatin1EncodingImpl;
370 #endif //_FTEXT_LATIN1_ENCODING_H_