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 * The %Latin1Encoding 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.
58 * using namespace Tizen::Base;
59 * using namespace Tizen::Text;
62 * MyClass::Latin1EncodingSample(void)
64 * Latin1Encoding latin1;
66 * String str(L"Latin1Test \u00A1\u00A2");
69 * latin1.GetByteCount(str, byteCount);
72 * ByteBuffer* pBuffer = latin1.GetBytesN(str);
75 * latin1.GetCharCount(*pBuffer, charCount);
79 * latin1.GetString(*pBuffer, decodedStr);
81 * if (str.Equals(decodedStr))
91 class _OSP_EXPORT_ Latin1Encoding
96 * This is the default constructor for this class.
100 Latin1Encoding(void);
103 * This is the destructor for this class. @n
104 * This destructor overrides Tizen::Text::Encoding::~Encoding().
108 virtual ~Latin1Encoding(void);
111 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer.
115 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
116 * else @c null if an exception occurs @n
117 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
118 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
119 * @exception E_SUCCESS The method is successful.
120 * @exception E_OUT_OF_MEMORY The memory is insufficient.
121 * @exception E_INVALID_ARG The specified @c chars is empty or invalid.
122 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
123 * @remarks The specific error code can be accessed using the GetLastResult() method.
126 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::WcharBuffer& chars) const;
129 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer.
133 * @return A pointer to the Tizen::Base::ByteBuffer instance where the resultant encoded string is stored, @n
134 * else @c null if an exception occurs @n
135 * The buffer limit is the position of the last encoded byte plus one and the starting position is zero.
136 * @param[in] str A string to encode
137 * @exception E_SUCCESS The method is successful.
138 * @exception E_OUT_OF_MEMORY The memory is insufficient.
139 * @exception E_INVALID_ARG The specified @c str is empty or invalid.
140 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
141 * @remarks The specific error code can be accessed using the GetLastResult() method.
144 virtual Tizen::Base::ByteBuffer* GetBytesN(const Tizen::Base::String& str) const;
147 * Encodes an instance of Tizen::Base::WcharBuffer into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
148 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
152 * @return An error code
153 * @param[in] chars An instance of Tizen::Base::WcharBuffer to encode
154 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
155 * @param[in] charCount The total number of characters to encode
156 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
157 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
158 * @exception E_SUCCESS The method is successful.
159 * @exception E_OUT_OF_MEMORY The memory is insufficient.
160 * @exception E_INVALID_ARG A specified input parameter is invalid, or
161 * the specified @c chars or @c bytes is empty.
162 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
163 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c chars.
164 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
165 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c chars.
166 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
167 * the specified @c bytes does not contain sufficient space to store the encoded characters.
168 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
169 * @remarks This method encodes a range of characters in a Tizen::Base::WcharBuffer into a range of bytes in a Tizen::Base::ByteBuffer.
172 virtual result GetBytes(const Tizen::Base::WcharBuffer& chars, int charIndex, int charCount,
173 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
176 * Encodes an instance of Tizen::Base::String into an instance of Tizen::Base::ByteBuffer as per the specified range. @n
177 * The position and limit of the pointer to the %Tizen::Base::ByteBuffer instance is not changed.
181 * @return An error code
182 * @param[in] str A string to encode
183 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
184 * @param[in] charCount The total number of characters to encode
185 * @param[out] bytes The Tizen::Base::ByteBuffer instance where the resultant encoded string is stored
186 * @param[in] byteIndex The starting index of the resultant encoding in the Tizen::Base::ByteBuffer instance
187 * @exception E_SUCCESS The method is successful.
188 * @exception E_OUT_OF_MEMORY The memory is insufficient.
189 * @exception E_INVALID_ARG A specified input parameter is invalid, or
190 * the specified @c str or @c bytes is empty.
191 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
192 * the length of the specified @c charIndex or @c charCount is greater than the length of the specified @c str.
193 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
194 * the sum of the length of the specified @c charIndex and @c charCount is greater than the length of the specified @c str.
195 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
196 * the specified @c bytes does not contain sufficient space to store the encoded characters.
197 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
200 virtual result GetBytes(const Tizen::Base::String& str, int charIndex, int charCount,
201 Tizen::Base::ByteBuffer& bytes, int byteIndex = 0) const;
204 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer.
208 * @return A pointer to the Tizen::Base::WcharBuffer instance where the resultant decoded data is stored, @n
209 * else @c null if an exception occurs @n
210 * The buffer limit is the position of the last decoded byte plus one and the starting position is zero.
211 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
212 * @exception E_SUCCESS The method is successful.
213 * @exception E_OUT_OF_MEMORY The memory is insufficient.
214 * @exception E_INVALID_ARG The specified @c bytes is empty.
215 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
216 * @remarks The specific error code can be accessed using the GetLastResult() method.
219 virtual Tizen::Base::WcharBuffer* GetCharsN(const Tizen::Base::ByteBuffer& bytes) const;
222 * Decodes an instance of Tizen::Base::ByteBuffer into an instance of Tizen::Base::WcharBuffer as per the specified range. @n
223 * The position and limit of the pointer to the %Tizen::Base::WcharBuffer instance is not changed.
227 * @return An error code
228 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
229 * @param[in] byteIndex The index from where decoding begins
230 * @param[in] byteCount The total number of bytes to decode
231 * @param[out] chars The Tizen::Base::WcharBuffer instance where the resultant decoded data is stored
232 * @param[in] charIndex The index from where encoding begins in the Tizen::Base::WcharBuffer instance
233 * @exception E_SUCCESS The method is successful.
234 * @exception E_OUT_OF_MEMORY The memory is insufficient.
235 * @exception E_INVALID_ARG A specified input parameter is invalid, or
236 * the specified @c bytes or @c chars is empty.
237 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, or
238 * the length of the specified @c byteIndex or @c byteCount is greater than the length of the specified @c bytes.
239 * @exception E_UNDERFLOW This operation has caused the memory to underflow, or
240 * the sum of the length of the specified @c byteIndex and @c byteCount is greater than the length of the specified @c bytes.
241 * @exception E_OVERFLOW This operation has caused the memory to overflow, or
242 * the specified @c chars does not contain sufficient space to store the decoded bytes.
243 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
246 virtual result GetChars(const Tizen::Base::ByteBuffer& bytes, int byteIndex, int byteCount,
247 Tizen::Base::WcharBuffer& chars, int charIndex = 0) const;
250 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
254 * @return An error code
255 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
256 * @param[out] str A Tizen::Base::String instance @n
257 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
258 * @exception E_SUCCESS The method is successful.
259 * @exception E_OUT_OF_MEMORY The memory is insufficient.
260 * @exception E_INVALID_ARG A specified input parameter is invalid, or
261 * the specified @c bytes is empty.
262 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
265 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, Tizen::Base::String& str) const;
268 * Gets a string containing the decoded representation of the specified Tizen::Base::ByteBuffer instance.
272 * @return An error code
273 * @param[in] bytes An instance of Tizen::Base::ByteBuffer to decode
274 * @param[in] index The index from where decoding begins
275 * @param[in] count The total number of bytes to decode
276 * @param[out] str A Tizen::Base::String instance @n
277 * It contains the decoded representation of the specified Tizen::Base::ByteBuffer instance.
278 * @exception E_SUCCESS The method is successful.
279 * @exception E_OUT_OF_MEMORY The memory is insufficient.
280 * @exception E_INVALID_ARG A specified input parameter is invalid, or
281 * the specified @c bytes is empty.
282 * @exception E_OUT_OF_RANGE The value of an argument is outside the valid range defined by the method, 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_UNDERFLOW This operation has caused the memory to underflow, or
285 * the sum of the length of the specified @c index and @c count is greater than the length of the specified @c bytes.
286 * @exception E_INVALID_ENCODING_RANGE The specified string contains code points that are outside the bounds of the character encoding scheme.
289 virtual result GetString(const Tizen::Base::ByteBuffer& bytes, int index, int count, Tizen::Base::String& str) const;
293 * Gets the maximum number of bytes required for encoding a given number of characters.
297 * @return The maximum number of bytes required for encoding a given number of characters
298 * @param[in] charCount The total number of characters to encode
299 * @remarks This method determines an appropriate buffer size for the byte arrays passed to GetBytes() for encoding.
300 * @see Encoding::GetByteCount()
302 virtual int GetMaxByteCount(int charCount) const;
306 * Gets the maximum number of characters that are generated by decoding the specified number of bytes.
310 * @return The maximum number of characters generated by decoding the specified number of bytes
311 * @param[in] byteCount The total number of bytes to encode
312 * @remarks This method determines an appropriate buffer size for character arrays passed to
313 * GetChars() or a decoder for encoding.
314 * @see Encoding::GetByteCount()
316 virtual int GetMaxCharCount(int byteCount) const;
320 * Gets the encoder for the current encoding.
324 * @return A pointer to the Encoder instance for the current encoding
325 * @remarks Contrary to GetBytes(), an encoder can convert partial sequences of characters into
326 * partial sequences of bytes by maintaining the appropriate state between the conversions.
327 * Currently only Utf8Encoding supports this method. Other classes return @c null.
330 virtual Encoder* GetEncoderN(void) const;
333 * Gets the decoder for the current encoding.
337 * @return A pointer to the Decoder instance for the current encoding
338 * @remarks Contrary to GetChars(), a decoder can convert partial sequences of bytes
339 * into partial sequences of characters by maintaining the appropriate state between the conversions.
340 * Currently only Utf8Encoding supports this method. Other classes return @c null.
343 virtual Decoder* GetDecoderN(void) const;
346 * Gets the encoding type of the current instance.
350 * @return An encoding type
352 virtual Tizen::Base::String GetEncodingType(void) const;
356 * The implementation of this copy constructor is intentionally blank and declared as private to
357 * prohibit copying of objects.
359 Latin1Encoding(const Latin1Encoding& latin1Encoding);
362 * The implementation of this copy assignment operator is intentionally blank and declared as private
363 * to prohibit copying of objects.
365 Latin1Encoding& operator =(const Latin1Encoding& latin1Encoding);
367 friend class _Latin1EncodingImpl;
368 class _Latin1EncodingImpl* __pLatin1EncodingImpl;
372 #endif //_FTEXT_LATIN1_ENCODING_H_