1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_vcl.hxx"
26
27 #include <string.h>
28
29 #include "psputil.hxx"
30
31 #include "tools/debug.hxx"
32
33 namespace psp {
34
35 /*
36 * string convenience routines
37 */
38
39 sal_Int32
getHexValueOf(sal_Int32 nValue,sal_Char * pBuffer)40 getHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
41 {
42 const static sal_Char pHex [0x10] = {
43 '0', '1', '2', '3', '4', '5', '6', '7',
44 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
45
46 pBuffer[0] = pHex [(nValue & 0xF0) >> 4];
47 pBuffer[1] = pHex [(nValue & 0x0F) ];
48
49 return 2;
50 }
51
52 sal_Int32
getAlignedHexValueOf(sal_Int32 nValue,sal_Char * pBuffer)53 getAlignedHexValueOf (sal_Int32 nValue, sal_Char* pBuffer)
54 {
55 // get sign
56 sal_Bool bNegative = nValue < 0;
57 nValue = bNegative ? -nValue : nValue;
58
59 // get required buffer size, must be a multiple of two
60 sal_Int32 nPrecision;
61 if (nValue < 0x80)
62 nPrecision = 2;
63 else
64 if (nValue < 0x8000)
65 nPrecision = 4;
66 else
67 if (nValue < 0x800000)
68 nPrecision = 6;
69 else
70 nPrecision = 8;
71
72 // convert the int into its hex representation, write it into the buffer
73 sal_Int32 nRet = nPrecision;
74 while (nPrecision)
75 {
76 nPrecision -= getHexValueOf (nValue % 256, pBuffer + nPrecision - 2 );
77 nValue /= 256;
78 }
79
80 // set sign bit
81 if (bNegative)
82 {
83 switch (pBuffer[0])
84 {
85 case '0' : pBuffer[0] = '8'; break;
86 case '1' : pBuffer[0] = '9'; break;
87 case '2' : pBuffer[0] = 'A'; break;
88 case '3' : pBuffer[0] = 'B'; break;
89 case '4' : pBuffer[0] = 'C'; break;
90 case '5' : pBuffer[0] = 'D'; break;
91 case '6' : pBuffer[0] = 'E'; break;
92 case '7' : pBuffer[0] = 'F'; break;
93 default: DBG_ERROR("Already a signed value");
94 }
95 }
96
97 // report precision
98 return nRet;
99 }
100
101
102 sal_Int32
getValueOf(sal_Int32 nValue,sal_Char * pBuffer)103 getValueOf (sal_Int32 nValue, sal_Char* pBuffer)
104 {
105 sal_Int32 nChar = 0;
106 if (nValue < 0)
107 {
108 pBuffer [nChar++] = '-';
109 nValue *= -1;
110 }
111 else
112 if (nValue == 0)
113 {
114 pBuffer [nChar++] = '0';
115 return nChar;
116 }
117
118 sal_Char pInvBuffer [32];
119 sal_Int32 nInvChar = 0;
120 while (nValue > 0)
121 {
122 pInvBuffer [nInvChar++] = '0' + nValue % 10;
123 nValue /= 10;
124 }
125 while (nInvChar > 0)
126 {
127 pBuffer [nChar++] = pInvBuffer [--nInvChar];
128 }
129
130 return nChar;
131 }
132
133 sal_Int32
appendStr(const sal_Char * pSrc,sal_Char * pDst)134 appendStr (const sal_Char* pSrc, sal_Char* pDst)
135 {
136 sal_Int32 nBytes = strlen (pSrc);
137 strncpy (pDst, pSrc, nBytes + 1);
138
139 return nBytes;
140 }
141
142 sal_Int32
appendStr(const sal_Char * pSrc,sal_Char * pDst,sal_Int32 nBytes)143 appendStr (const sal_Char* pSrc, sal_Char* pDst, sal_Int32 nBytes)
144 {
145 strncpy (pDst, pSrc, nBytes);
146 pDst [nBytes] = '\0';
147 return nBytes;
148 }
149
150 /*
151 * copy strings to file
152 */
153
154 sal_Bool
WritePS(osl::File * pFile,const sal_Char * pString)155 WritePS (osl::File* pFile, const sal_Char* pString)
156 {
157 sal_uInt64 nInLength = rtl_str_getLength (pString);
158 sal_uInt64 nOutLength = 0;
159
160 if (nInLength > 0 && pFile)
161 pFile->write (pString, nInLength, nOutLength);
162
163 return nInLength == nOutLength;
164 }
165
166 sal_Bool
WritePS(osl::File * pFile,const sal_Char * pString,sal_uInt64 nInLength)167 WritePS (osl::File* pFile, const sal_Char* pString, sal_uInt64 nInLength)
168 {
169 sal_uInt64 nOutLength = 0;
170
171 if (nInLength > 0 && pFile)
172 pFile->write (pString, nInLength, nOutLength);
173
174 return nInLength == nOutLength;
175 }
176
177 sal_Bool
WritePS(osl::File * pFile,const rtl::OString & rString)178 WritePS (osl::File* pFile, const rtl::OString &rString)
179 {
180 sal_uInt64 nInLength = rString.getLength();
181 sal_uInt64 nOutLength = 0;
182
183 if (nInLength > 0 && pFile)
184 pFile->write( rString.getStr(), nInLength, nOutLength);
185
186 return nInLength == nOutLength;
187 }
188
189 sal_Bool
WritePS(osl::File * pFile,const rtl::OUString & rString)190 WritePS (osl::File* pFile, const rtl::OUString &rString)
191 {
192 return WritePS (pFile, rtl::OUStringToOString(rString, RTL_TEXTENCODING_ASCII_US));
193 }
194
195 /*
196 * cache converter for use in postscript drawing routines
197 */
198
ConverterFactory()199 ConverterFactory::ConverterFactory()
200 {
201 }
202
~ConverterFactory()203 ConverterFactory::~ConverterFactory ()
204 {
205 for( std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it = m_aConverters.begin(); it != m_aConverters.end(); ++it )
206 rtl_destroyUnicodeToTextConverter (it->second);
207 }
208
209 rtl_UnicodeToTextConverter
Get(rtl_TextEncoding nEncoding)210 ConverterFactory::Get (rtl_TextEncoding nEncoding)
211 {
212 if (rtl_isOctetTextEncoding( nEncoding ))
213 {
214 std::map< rtl_TextEncoding, rtl_UnicodeToTextConverter >::const_iterator it =
215 m_aConverters.find( nEncoding );
216 rtl_UnicodeToTextConverter aConverter;
217 if (it == m_aConverters.end())
218 {
219 aConverter = rtl_createUnicodeToTextConverter (nEncoding);
220 m_aConverters[nEncoding] = aConverter;
221 }
222 else
223 aConverter = it->second;
224 return aConverter;
225 }
226 return NULL;
227 }
228
229 // wrapper for rtl_convertUnicodeToText that handles the usual cases for
230 // textconversion in drawtext
231 sal_Size
Convert(const sal_Unicode * pText,int nTextLen,sal_uChar * pBuffer,sal_Size nBufferSize,rtl_TextEncoding nEncoding)232 ConverterFactory::Convert (const sal_Unicode *pText, int nTextLen,
233 sal_uChar *pBuffer, sal_Size nBufferSize, rtl_TextEncoding nEncoding)
234 {
235 const sal_uInt32 nCvtFlags = RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK
236 | RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK ;
237 sal_uInt32 nCvtInfo;
238 sal_Size nCvtChars;
239
240 rtl_UnicodeToTextConverter aConverter = Get (nEncoding);
241 rtl_UnicodeToTextContext aContext = rtl_createUnicodeToTextContext (aConverter);
242
243 sal_Size nSize = rtl_convertUnicodeToText (aConverter, aContext,
244 pText, nTextLen, (sal_Char*)pBuffer, nBufferSize,
245 nCvtFlags, &nCvtInfo, &nCvtChars);
246
247 rtl_destroyUnicodeToTextContext (aConverter, aContext);
248
249 return nSize;
250 }
251
252 ConverterFactory*
GetConverterFactory()253 GetConverterFactory ()
254 {
255 static ConverterFactory* pCvt = NULL;
256
257 if (pCvt == NULL)
258 pCvt = new ConverterFactory;
259
260 return pCvt;
261 }
262
263
264 } /* namespace psp */
265