2 // Open Service Platform
3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 // Licensed under the Apache License, Version 2.0 (the License);
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
19 * @file FTextLatin1Encoding.h
20 * @brief This is the header file for the %Latin1Encoding class.
22 * This header file contains the declarations of the %Latin1Encoding class.
23 * This class is derived from the Encoding class.
25 #ifndef _FTEXT_LATIN1_ENCODING_H_
26 #define _FTEXT_LATIN1_ENCODING_H_
28 #include <FTextEncoding.h>
31 namespace Tizen { namespace Text
34 * @class Latin1Encoding
35 * @brief This class is an implementation of the Latin1 encoding.
39 * @final This class is not intended for extension.
41 * The %Latin1Encoding class is an implementation of the Latin1 encoding.
42 * 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,
43 * though the two are not identical.
44 * Latin1 also serves as the basis for the ANSI character set of MS Windows.
45 * Only the characters in ISO Latin-1 are guaranteed to be supported on an Internet website.
46 * When a %Web browser, such as Internet Explorer or Firefox formats a %Web page on a client system, such as
47 * Windows, it maps the ISO Latin-1 characters as best it can into the default character set.
49 * 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>.
51 * The following example demonstrates how to use the %Latin1Encoding class.
57 * using namespace Tizen::Base;
58 * using namespace Tizen::Text;
61 * MyClass::Latin1EncodingSample(void)
63 * Latin1Encoding latin1;
65 * String str(L"Latin1Test \u00A1\u00A2");
68 * latin1.GetByteCount(str, byteCount);
71 * ByteBuffer* pBuffer = latin1.GetBytesN(str);
74 * latin1.GetCharCount(*pBuffer, charCount);
78 * latin1.GetString(*pBuffer, decodedStr);
80 * if (str.Equals(decodedStr))
90 class _OSP_EXPORT_ Latin1Encoding
95 * This is the default constructor for this class.
102 * This is the destructor for this class. @n
103 * This destructor overrides Tizen::Text::Encoding::~Encoding().
107 virtual ~Latin1Encoding(void);
110 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer.
114 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
115 * else @c null if an exception occurs @n
116 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
117 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
118 * @exception E_SUCCESS The method is successful.
119 * @exception E_OUT_OF_MEMORY The memory is insufficient.
120 * @exception E_INVALID_ARG The specified @c chars is empty or invalid.
121 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
122 * @remarks The specific error code can be accessed using the GetLastResult() method.
125 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::WcharBuffer& chars) const;
128 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer.
132 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
133 * else @c null if an exception occurs @n
134 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
135 * @param[in] str A string to encode
136 * @exception E_SUCCESS The method is successful.
137 * @exception E_OUT_OF_MEMORY The memory is insufficient.
138 * @exception E_INVALID_ARG The specified @c str is empty or invalid.
139 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
140 * @remarks The specific error code can be accessed using the GetLastResult() method.
143 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::String& str) const;
146 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
147 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
151 * @return An error code
152 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
153 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
154 * @param[in] charCount The total number of characters to encode
155 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
156 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
157 * @exception E_SUCCESS The method is successful.
158 * @exception E_OUT_OF_MEMORY The memory is insufficient.
159 * @exception E_INVALID_ARG A specified input parameter is invalid, or
160 * the specified @c chars or @c bytes is empty.
161 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
162 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c chars.
163 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
164 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c chars.
165 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
166 * the specified @c bytes does not contain sufficient space to store the encoded characters.
167 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
168 * @remarks This method encodes a range of characters in Tizen::Base::WcharBuffer into a range of bytes in Tizen::Base::ByteBuffer.
171 virtual result GetBytes(const Tizen::Base::WcharBuffer& chars, int charIndex, int charCount,
172 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
175 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
176 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
180 * @return An error code
181 * @param[in] str A string to encode
182 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
183 * @param[in] charCount The total number of characters to encode
184 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
185 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
186 * @exception E_SUCCESS The method is successful.
187 * @exception E_OUT_OF_MEMORY The memory is insufficient.
188 * @exception E_INVALID_ARG A specified input parameter is invalid, or
189 * the specified @c str or @c bytes is empty.
190 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
191 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c str.
192 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
193 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c str.
194 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
195 * the specified @c bytes does not contain sufficient space to store the encoded characters.
196 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
199 virtual result GetBytes(const Tizen::Base::String& str, int charIndex, int charCount,
200 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
203 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer.
207 * @return A pointer to the Tizen::Base::WcharBuffer instance where the resultant decoded data is stored, @n
208 * else @c null if an exception occurs @n
209 * The buffer limit is the position of the last decoded byte plus one and the starting position is zero.
210 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
211 * @exception E_SUCCESS The method is successful.
212 * @exception E_OUT_OF_MEMORY The memory is insufficient.
213 * @exception E_INVALID_ARG The specified @c bytes is empty.
214 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
215 * @remarks The specific error code can be accessed using the GetLastResult() method.
218 virtual Tizen::Base::WcharBuffer* GetCharsN(const Tizen::Base::ByteBuffer& bytes) const;
221 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer as per the specified range. @n
222 * The position and limit of the pointer to the %Tizen::Base::WcharBuffer instance is not changed.
226 * @return An error code
227 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
228 * @param[in] byteIndex The index from where decoding begins
229 * @param[in] byteCount The total number of bytes to decode
230 * @param[out] chars The Tizen::Base::WcharBuffer instance where the resultant decoded data is stored
231 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
232 * @exception E_SUCCESS The method is successful.
233 * @exception E_OUT_OF_MEMORY The memory is insufficient.
234 * @exception E_INVALID_ARG A specified input parameter is invalid, or
235 * the specified @c bytes or @c chars is empty.
236 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
237 * the length of the specified @c byteIndex or @c byteCount is greater than the length of the specified @c bytes.
238 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
239 * the sum of the length of the specified @c byteIndex and @c byteCount is greater than the length of the specified @c bytes.
240 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
241 * the specified @c chars does not contain sufficient space to store the decoded bytes.
242 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
245 virtual result GetChars(const Tizen::Base::ByteBuffer& bytes, int byteIndex, int byteCount,
246 Tizen::Base::WcharBuffer& chars, int charIndex = 0) const;
249 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
253 * @return An error code
254 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
255 * @param[out] str A Tizen::Base::String instance @n
256 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
257 * @exception E_SUCCESS The method is successful.
258 * @exception E_OUT_OF_MEMORY The memory is insufficient.
259 * @exception E_INVALID_ARG A specified input parameter is invalid, or
260 * the specified @c bytes is empty.
261 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
264 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, Tizen::Base::String& str) const;
267 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
271 * @return An error code
272 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
273 * @param[in] index The index from where decoding begins
274 * @param[in] count The total number of bytes to decode
275 * @param[out] str A Tizen::Base::String instance @n
276 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
277 * @exception E_SUCCESS The method is successful.
278 * @exception E_OUT_OF_MEMORY The memory is insufficient.
279 * @exception E_INVALID_ARG A specified input parameter is invalid, or
280 * the specified @c bytes is empty.
281 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
282 * the sum of the length of the specified @c index and @c count is greater than the length of the specified @c bytes.
283 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
284 * the sum of the length of the specified @c index and @c count is greater than the length of the specified @c bytes.
285 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
288 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, int index, int count, Tizen::Base::String& str) const;
292 * Gets the maximum number of bytes required for encoding a given number of characters.
296 * @return The maximum number of bytes required for encoding a given number of characters
297 * @param[in] charCount The total number of characters to encode
298 * @remarks This method determines an appropriate buffer size for the byte arrays passed to GetBytes() for encoding.
299 * @see Encoding::GetByteCount()
301 virtual int GetMaxByteCount(int charCount) const;
305 * Gets the maximum number of characters that are generated by decoding the specified number of bytes.
309 * @return The maximum number of characters generated by decoding the specified number of bytes
310 * @param[in] byteCount The total number of bytes to encode
311 * @remarks This method determines an appropriate buffer size for character arrays passed to
312 * GetChars() or a decoder for encoding.
313 * @see Encoding::GetByteCount()
315 virtual int GetMaxCharCount(int byteCount) const;
319 * Gets the encoder for the current encoding.
323 * @return A pointer to the Encoder instance for the current encoding
324 * @remarks Contrary to GetBytes(), an encoder can convert partial sequences of characters into
325 * partial sequences of bytes by maintaining the appropriate state between the conversions.
326 * Currently only Utf8Encoding supports this method. Other classes return @c null.
329 virtual Encoder* GetEncoderN(void) const;
332 * Gets the decoder for the current encoding.
336 * @return A pointer to the Decoder instance for the current encoding
337 * @remarks Contrary to GetChars(), a decoder can convert partial sequences of bytes
338 * into partial sequences of characters by maintaining the appropriate state between the conversions.
339 * Currently only Utf8Encoding supports this method. Other classes return @c null.
342 virtual Decoder* GetDecoderN(void) const;
345 * Gets the encoding type of the current instance.
349 * @return An encoding type
351 virtual Tizen::Base::String GetEncodingType(void) const;
355 * The implementation of this copy constructor is intentionally blank and declared as private to
356 * prohibit copying of objects.
358 Latin1Encoding(const Latin1Encoding& latin1Encoding);
361 * The implementation of this copy assignment operator is intentionally blank and declared as private
362 * to prohibit copying of objects.
364 Latin1Encoding& operator =(const Latin1Encoding& latin1Encoding);
366 friend class _Latin1EncodingImpl;
367 class _Latin1EncodingImpl* __pLatin1EncodingImpl;
371 #endif //_FTEXT_LATIN1_ENCODING_H_