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[lyx.git] / src / insets / insetquotes.C
1 /**
2  * \file insetquotes.C
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Jean-Marc Lasgouttes
7  *
8  * Full author contact details are available in file CREDITS
9  */
10
11 #include <config.h>
12
13
14 #include "insetquotes.h"
15
16 #include "support/LAssert.h"
17 #include "support/lstrings.h"
18 #include "BufferView.h"
19 #include "LaTeXFeatures.h"
20 #include "frontends/Painter.h"
21 #include "buffer.h"
22 #include "debug.h"
23 #include "frontends/font_metrics.h"
24 #include "language.h"
25 #include "lyxfont.h"
26 #include "lyxrc.h"
27 #include "paragraph.h"
28 #include "lyxlex.h"
29
30 using std::ostream;
31 using std::endl;
32
33 // Quotes. Used for the various quotes. German, English, French,
34 // Danish, Polish, all either double or single.
35
36 namespace {
37
38 // codes used to read/write quotes to LyX files
39 char const * const language_char = "esgpfa";
40 char const * const side_char = "lr" ;
41 char const * const times_char = "sd";
42
43 // List of known quote chars
44 char const * const quote_char = ",'`<>";
45
46 // Index of chars used for the quote. Index is [side, language]
47 int quote_index[2][6] = {
48         { 2, 1, 0, 0, 3, 4 },    // "'',,<>"
49         { 1, 1, 2, 1, 4, 3 } };  // "`'`'><"
50
51 // Corresponding LaTeX code, for double and single quotes.
52 char const * const latex_quote_t1[2][5] =
53 { { "\\quotesinglbase ",  "'", "`",
54     "\\guilsinglleft{}", "\\guilsinglright{}" },
55   { ",,", "''", "``", "<<", ">>" } };
56
57 char const * const latex_quote_ot1[2][5] =
58 { { "\\quotesinglbase ",  "'", "`",
59     "\\guilsinglleft{}", "\\guilsinglright{}" },
60   { "\\quotedblbase ", "''", "``",
61     "\\guillemotleft{}", "\\guillemotright{}" } };
62
63 char const * const latex_quote_babel[2][5] =
64 { { "\\glq ",  "'", "`", "\\flq{}", "\\frq{}" },
65   { "\\glqq ", "''", "``", "\\flqq{}", "\\frqq{}" } };
66
67 } // namespace anon
68
69
70 InsetQuotes::InsetQuotes(string const & str)
71 {
72         parseString(str);
73 }
74
75
76 InsetQuotes::InsetQuotes(quote_language l,
77                          quote_side s,
78                          quote_times t)
79         : language_(l), side_(s), times_(t)
80 {}
81
82
83 InsetQuotes::InsetQuotes(char c, BufferParams const & params)
84         : language_(params.quotes_language), times_(params.quotes_times)
85 {
86         // Decide whether left or right
87         switch (c) {
88         case ' ': case '(':
89         case Paragraph::META_HFILL:
90         case Paragraph::META_NEWLINE:
91                 side_ = LeftQ;   // left quote
92                 break;
93         default:
94                 side_ = RightQ;  // right quote
95         }
96 }
97
98
99 void InsetQuotes::parseString(string const & s)
100 {
101         string str(s);
102         if (str.length() != 3) {
103                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
104                         " bad string length." << endl;
105                 str = "eld";
106         }
107
108         int i;
109
110         for (i = 0; i < 6; ++i) {
111                 if (str[0] == language_char[i]) {
112                         language_ = quote_language(i);
113                         break;
114                 }
115         }
116         if (i >= 6) {
117                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
118                         " bad language specification." << endl;
119                 language_ = EnglishQ;
120         }
121
122         for (i = 0; i < 2; ++i) {
123                 if (str[1] == side_char[i]) {
124                         side_ = quote_side(i);
125                         break;
126                 }
127         }
128         if (i >= 2) {
129                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
130                         " bad side specification." << endl;
131                 side_ = LeftQ;
132         }
133
134         for (i = 0; i < 2; ++i) {
135                 if (str[2] == times_char[i]) {
136                         times_ = quote_times(i);
137                         break;
138                 }
139         }
140         if (i >= 2) {
141                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
142                         " bad times specification." << endl;
143                 times_ = DoubleQ;
144         }
145 }
146
147
148 string const InsetQuotes::dispString(Language const * loclang) const
149 {
150         string disp;
151         disp += quote_char[quote_index[side_][language_]];
152         if (times_ == DoubleQ)
153                 disp += disp;
154
155         if (lyxrc.font_norm_type == LyXRC::ISO_8859_1
156             || lyxrc.font_norm_type == LyXRC::ISO_8859_3
157             || lyxrc.font_norm_type == LyXRC::ISO_8859_4
158             || lyxrc.font_norm_type == LyXRC::ISO_8859_9) {
159                 if (disp == "'")
160                         disp = "´";
161                 else if (disp == "''")
162                         disp = "´´";
163         }
164         if (lyxrc.font_norm_type == LyXRC::ISO_8859_1
165             || lyxrc.font_norm_type == LyXRC::ISO_8859_9
166             || lyxrc.font_norm_type == LyXRC::ISO_8859_15) {
167                 if (disp == "<<")
168                         disp = '«';
169                 else if (disp == ">>")
170                         disp = '»';
171         }
172
173         // in french, spaces are added inside double quotes
174         if (times_ == DoubleQ && prefixIs(loclang->code(), "fr")) {
175                 if (side_ == LeftQ)
176                         disp += ' ';
177                 else
178                         disp.insert(string::size_type(0), 1, ' ');
179         }
180
181         return disp;
182 }
183
184
185 int InsetQuotes::ascent(BufferView *, LyXFont const & font) const
186 {
187         return font_metrics::maxAscent(font);
188 }
189
190
191 int InsetQuotes::descent(BufferView *, LyXFont const & font) const
192 {
193         return font_metrics::maxDescent(font);
194 }
195
196
197 int InsetQuotes::width(BufferView *, LyXFont const & font) const
198 {
199         string const text = dispString(font.language());
200         int w = 0;
201
202         for (string::size_type i = 0; i < text.length(); ++i) {
203                 if (text[i] == ' ')
204                         w += font_metrics::width('i', font);
205                 else if (i == 0 || text[i] != text[i - 1])
206                         w += font_metrics::width(text[i], font);
207                 else
208                         w += font_metrics::width(',', font);
209         }
210
211         return w;
212 }
213
214
215 #if 0
216 LyXFont const InsetQuotes::convertFont(LyXFont const & f) const
217 {
218 #if 1
219         return f;
220 #else
221         LyXFont font(f);
222         return font;
223 #endif
224 }
225 #endif
226
227
228 void InsetQuotes::draw(BufferView * bv, LyXFont const & font,
229                        int baseline, float & x, bool) const
230 {
231         string const text = dispString(font.language());
232
233         if (text.length() == 2 && text[0] == text[1]) {
234                 bv->painter().text(int(x), baseline, text[0], font);
235                 int x2 = int(x + font_metrics::width(',', font));
236                 bv->painter().text(x2, baseline, text[0], font);
237         } else
238                 bv->painter().text(int(x), baseline, text, font);
239         x += width(bv, font);
240 }
241
242
243 void InsetQuotes::write(Buffer const *, ostream & os) const
244 {
245         string text;
246         text += language_char[language_];
247         text += side_char[side_];
248         text += times_char[times_];
249         os << "Quotes " << text;
250 }
251
252
253 void InsetQuotes::read(Buffer const *, LyXLex & lex)
254 {
255         lex.nextToken();
256         parseString(lex.getString());
257         lex.next();
258         if (lex.getString() != "\\end_inset") {
259                 lex.printError("Missing \\end_inset at this point");
260         }
261 }
262
263
264 extern bool use_babel;
265
266 int InsetQuotes::latex(Buffer const * buf, ostream & os,
267                        bool /*fragile*/, bool /* free_spc */) const
268 {
269         // How do we get the local language here??
270         lyx::pos_type curr_pos = parOwner()->getPositionOfInset(this);
271         lyx::Assert(curr_pos != -1);
272         string const curr_lang =
273                 parOwner()->getFont(buf->params,
274                                     curr_pos).language()->babel();
275
276         const int quoteind = quote_index[side_][language_];
277         string qstr;
278
279         if (language_ == FrenchQ && times_ == DoubleQ
280             && curr_lang == "frenchb") {
281                 if (side_ == LeftQ)
282                         qstr = "\\og "; //the spaces are important here
283                 else
284                         qstr = " \\fg{}"; //and here
285         } else if (language_ == FrenchQ && times_ == DoubleQ
286                    && curr_lang == "french") {
287                 if (side_ == LeftQ)
288                         qstr = "<< "; //the spaces are important here
289                 else
290                         qstr = " >>"; //and here
291         } else if (lyxrc.fontenc == "T1") {
292                 qstr = latex_quote_t1[times_][quoteind];
293 #ifdef DO_USE_DEFAULT_LANGUAGE
294         } else if (doclang == "default") {
295 #else
296         } else if (!use_babel) {
297 #endif
298                 qstr = latex_quote_ot1[times_][quoteind];
299         } else {
300                 qstr = latex_quote_babel[times_][quoteind];
301         }
302
303         // Always guard against unfortunate ligatures (!` ?`)
304         if (prefixIs(qstr, "`"))
305                 qstr.insert(0, "{}");
306
307         os << qstr;
308         return 0;
309 }
310
311
312 int InsetQuotes::ascii(Buffer const *, ostream & os, int) const
313 {
314         os << '"';
315         return 0;
316 }
317
318
319 int InsetQuotes::linuxdoc(Buffer const *, ostream & os) const
320 {
321         os << '"';
322         return 0;
323 }
324
325
326 int InsetQuotes::docbook(Buffer const *, ostream & os, bool) const
327 {
328         if (times_ == DoubleQ) {
329                 if (side_ == LeftQ)
330                         os << "&ldquo;";
331                 else
332                         os << "&rdquo;";
333         } else {
334                 if (side_ == LeftQ)
335                         os << "&lsquo;";
336                 else
337                         os << "&rsquo;";
338         }
339         return 0;
340 }
341
342
343 void InsetQuotes::validate(LaTeXFeatures & features) const
344 {
345         char type = quote_char[quote_index[side_][language_]];
346
347 #ifdef DO_USE_DEFAULT_LANGUAGE
348         if (features.bufferParams().language->lang() == "default"
349 #else
350         if (!use_babel
351 #endif
352             && lyxrc.fontenc != "T1") {
353                 if (times_ == SingleQ)
354                         switch (type) {
355                         case ',': features.require("quotesinglbase");  break;
356                         case '<': features.require("guilsinglleft");  break;
357                         case '>': features.require("guilsinglright"); break;
358                         default: break;
359                         }
360                 else
361                         switch (type) {
362                         case ',': features.require("quotedblbase");   break;
363                         case '<': features.require("guillemotleft");  break;
364                         case '>': features.require("guillemotright"); break;
365                         default: break;
366                         }
367         }
368 }
369
370
371 Inset * InsetQuotes::clone(Buffer const &, bool) const
372 {
373   return new InsetQuotes(language_, side_, times_);
374 }
375
376
377 Inset::Code InsetQuotes::lyxCode() const
378 {
379   return Inset::QUOTE_CODE;
380 }