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1 /**
2  * \file Inset.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Alejandro Aguilar Sierra
7  * \author Jürgen Vigna
8  * \author Lars Gullik Bjønnes
9  * \author Matthias Ettrich
10  * \author André Pönitz
11  *
12  * Full author contact details are available in file CREDITS.
13  */
14
15 #include <config.h>
16
17 #include "Inset.h"
18
19 #include "buffer_funcs.h"
20 #include "Buffer.h"
21 #include "BufferList.h"
22 #include "BufferParams.h"
23 #include "BufferView.h"
24 #include "CoordCache.h"
25 #include "Cursor.h"
26 #include "Dimension.h"
27 #include "DispatchResult.h"
28 #include "FuncRequest.h"
29 #include "FuncStatus.h"
30 #include "MetricsInfo.h"
31 #include "Text.h"
32 #include "TextClass.h"
33
34 #include "frontends/Application.h"
35 #include "frontends/Painter.h"
36
37 #include "support/debug.h"
38 #include "support/docstream.h"
39 #include "support/ExceptionMessage.h"
40 #include "support/gettext.h"
41 #include "support/lassert.h"
42
43 #include <map>
44
45 using namespace std;
46 using namespace lyx::support;
47
48 namespace lyx {
49
50 class InsetName {
51 public:
52         InsetName(string const & n, InsetCode c) : name(n), code(c) {}
53         string name;
54         InsetCode code;
55 };
56
57
58 typedef map<string, InsetCode> TranslatorMap;
59
60
61 static TranslatorMap const build_translator()
62 {
63         InsetName const insetnames[] = {
64                 InsetName("toc", TOC_CODE),
65                 InsetName("quote", QUOTE_CODE),
66                 InsetName("ref", REF_CODE),
67                 InsetName("href", HYPERLINK_CODE),
68                 InsetName("separator", SEPARATOR_CODE),
69                 InsetName("ending", ENDING_CODE),
70                 InsetName("label", LABEL_CODE),
71                 InsetName("note", NOTE_CODE),
72                 InsetName("phantom", PHANTOM_CODE),
73                 InsetName("accent", ACCENT_CODE),
74                 InsetName("math", MATH_CODE),
75                 InsetName("index", INDEX_CODE),
76                 InsetName("nomenclature", NOMENCL_CODE),
77                 InsetName("include", INCLUDE_CODE),
78                 InsetName("graphics", GRAPHICS_CODE),
79                 InsetName("bibitem", BIBITEM_CODE),
80                 InsetName("bibtex", BIBTEX_CODE),
81                 InsetName("text", TEXT_CODE),
82                 InsetName("ert", ERT_CODE),
83                 InsetName("foot", FOOT_CODE),
84                 InsetName("margin", MARGIN_CODE),
85                 InsetName("float", FLOAT_CODE),
86                 InsetName("wrap", WRAP_CODE),
87                 InsetName("specialchar", SPECIALCHAR_CODE),
88                 InsetName("tabular", TABULAR_CODE),
89                 InsetName("external", EXTERNAL_CODE),
90                 InsetName("caption", CAPTION_CODE),
91                 InsetName("mathmacro", MATHMACRO_CODE),
92                 InsetName("citation", CITE_CODE),
93                 InsetName("floatlist", FLOAT_LIST_CODE),
94                 InsetName("index_print", INDEX_PRINT_CODE),
95                 InsetName("nomencl_print", NOMENCL_PRINT_CODE),
96                 InsetName("optarg", OPTARG_CODE),
97                 InsetName("newline", NEWLINE_CODE),
98                 InsetName("line", LINE_CODE),
99                 InsetName("branch", BRANCH_CODE),
100                 InsetName("box", BOX_CODE),
101                 InsetName("flex", FLEX_CODE),
102                 InsetName("space", SPACE_CODE),
103                 InsetName("vspace", VSPACE_CODE),
104                 InsetName("mathmacroarg", MATH_MACROARG_CODE),
105                 InsetName("listings", LISTINGS_CODE),
106                 InsetName("info", INFO_CODE),
107                 InsetName("collapsable", COLLAPSABLE_CODE),
108                 InsetName("newpage", NEWPAGE_CODE),
109                 InsetName("tablecell", CELL_CODE),
110                 InsetName("mathamsarray", MATH_AMSARRAY_CODE),
111                 InsetName("matharray", MATH_ARRAY_CODE),
112                 InsetName("mathbig", MATH_BIG_CODE),
113                 InsetName("mathboldsymbol", MATH_BOLDSYMBOL_CODE),
114                 InsetName("mathbox", MATH_BOX_CODE),
115                 InsetName("mathbrace", MATH_BRACE_CODE),
116                 InsetName("mathcases", MATH_CASES_CODE),
117                 InsetName("mathchar", MATH_CHAR_CODE),
118                 InsetName("mathcolor", MATH_COLOR_CODE),
119                 InsetName("mathcomment", MATH_COMMENT_CODE),
120                 InsetName("mathdecoration", MATH_DECORATION_CODE),
121                 InsetName("mathdelim", MATH_DELIM_CODE),
122                 InsetName("mathdiff", MATH_DIFF_CODE),
123                 InsetName("mathdots", MATH_DOTS_CODE),
124                 InsetName("mathensuremath", MATH_ENSUREMATH_CODE),
125                 InsetName("mathenv", MATH_ENV_CODE),
126                 InsetName("mathexfunc", MATH_EXFUNC_CODE),
127                 InsetName("mathexint", MATH_EXINT_CODE),
128                 InsetName("mathfont", MATH_FONT_CODE),
129                 InsetName("mathfontold", MATH_FONTOLD_CODE),
130                 InsetName("mathfrac", MATH_FRAC_CODE),
131                 InsetName("mathgrid", MATH_GRID_CODE),
132                 InsetName("math", MATH_CODE),
133                 InsetName("mathhull", MATH_HULL_CODE),
134                 InsetName("mathkern", MATH_KERN_CODE),
135                 InsetName("mathlefteqn", MATH_LEFTEQN_CODE),
136                 InsetName("mathlim", MATH_LIM_CODE),
137                 InsetName("mathmatrix", MATH_MATRIX_CODE),
138                 InsetName("mathmbox", MATH_MBOX_CODE),
139                 InsetName("mathnest", MATH_NEST_CODE),
140                 InsetName("mathnumber", MATH_NUMBER_CODE),
141                 InsetName("mathoverset", MATH_OVERSET_CODE),
142                 InsetName("mathpar", MATH_PAR_CODE),
143                 InsetName("mathphantom", MATH_PHANTOM_CODE),
144                 InsetName("mathref", MATH_REF_CODE),
145                 InsetName("mathroot", MATH_ROOT_CODE),
146                 InsetName("mathscript", MATH_SCRIPT_CODE),
147                 InsetName("mathsize", MATH_SIZE_CODE),
148                 InsetName("mathspace", MATH_SPACE_CODE),
149                 InsetName("mathspecialchar", MATH_SPECIALCHAR_CODE),
150                 InsetName("mathsplit", MATH_SPLIT_CODE),
151                 InsetName("mathsqrt", MATH_SQRT_CODE),
152                 InsetName("mathstackrel", MATH_STACKREL_CODE),
153                 InsetName("mathstring", MATH_STRING_CODE),
154                 InsetName("mathsubstack", MATH_SUBSTACK_CODE),
155                 InsetName("mathsymbol", MATH_SYMBOL_CODE),
156                 InsetName("mathtabular", MATH_TABULAR_CODE),
157                 InsetName("mathunderset", MATH_UNDERSET_CODE),
158                 InsetName("mathunknown", MATH_UNKNOWN_CODE),
159                 InsetName("mathxarrow", MATH_XARROW_CODE),
160                 InsetName("mathxyarrow", MATH_XYARROW_CODE),
161                 InsetName("mathxymatrix", MATH_XYMATRIX_CODE),
162                 InsetName("mathmacro", MATH_MACRO_CODE),
163         };
164
165         size_t const insetnames_size =
166                 sizeof(insetnames) / sizeof(insetnames[0]);
167
168         map<string, InsetCode> data;
169         for (size_t i = 0; i != insetnames_size; ++i) {
170                 InsetName const & var = insetnames[i];
171                 data[var.name] = var.code;
172         }
173
174         return data;
175 }
176
177
178 void Inset::setBuffer(Buffer & buffer)
179 {
180         buffer_ = &buffer;
181 }
182
183
184 Buffer & Inset::buffer()
185 {
186         if (!buffer_) {
187                 odocstringstream s;
188                 lyxerr << "LyX Code: " << lyxCode() << " name: " << insetName(lyxCode()) << std::endl;
189                 s << "LyX Code: " << lyxCode() << " name: " << name();
190                 LASSERT(false, /**/);
191                 throw ExceptionMessage(BufferException, 
192                         from_ascii("Inset::buffer_ member not initialized!"), s.str());
193         }
194         return *buffer_;
195 }
196
197
198 Buffer const & Inset::buffer() const
199 {
200         return const_cast<Inset *>(this)->buffer();
201 }
202
203
204 bool Inset::isBufferValid() const
205 {
206         return buffer_ && theBufferList().isLoaded(buffer_);
207 }
208
209
210 docstring Inset::name() const
211 {
212         return from_ascii("unknown");
213 }
214
215
216 bool Inset::isFreeSpacing() const 
217 {
218         return getLayout().isFreeSpacing();
219 }
220
221
222 bool Inset::allowEmpty() const
223 {
224         return getLayout().isKeepEmpty();
225 }
226
227 bool Inset::forceLTR() const
228 {
229         return getLayout().forceLTR();
230 }
231
232 void Inset::initView()
233 {
234         if (isLabeled())
235                 buffer().updateLabels();
236 }
237
238
239 docstring Inset::toolTip(BufferView const &, int, int) const
240 {
241         return docstring();
242 }
243
244
245 docstring Inset::contextMenu(BufferView const &, int, int) const
246 {
247         return docstring();
248 }
249
250
251 Dimension const Inset::dimension(BufferView const & bv) const
252 {
253         return bv.coordCache().getInsets().dim(this);
254 }
255
256
257 InsetCode insetCode(string const & name)
258 {
259         static TranslatorMap const translator = build_translator();
260
261         TranslatorMap::const_iterator it = translator.find(name);
262         return it == translator.end() ? NO_CODE : it->second;
263 }
264
265
266 string insetName(InsetCode c) 
267 {
268         static TranslatorMap const translator = build_translator();
269
270         TranslatorMap::const_iterator it =  translator.begin();
271         TranslatorMap::const_iterator end = translator.end();
272         for (; it != end; ++it) {
273                 if (it->second == c)
274                         return it->first;
275         }
276         return string();
277 }
278
279
280 void Inset::dispatch(Cursor & cur, FuncRequest & cmd)
281 {
282         if (buffer_ == 0) {
283                 lyxerr << "Unassigned buffer_ member in Inset::dispatch()" << std::endl;
284                 lyxerr << "LyX Code: " << lyxCode() << " name: " << insetName(lyxCode()) << std::endl;
285         } else if (cur.buffer() != buffer_)
286                 lyxerr << "cur.buffer() != buffer_ in Inset::dispatch()" << std::endl;
287         cur.updateFlags(Update::Force | Update::FitCursor);
288         cur.dispatched();
289         doDispatch(cur, cmd);
290 }
291
292
293 void Inset::doDispatch(Cursor & cur, FuncRequest &cmd)
294 {
295         switch (cmd.action) {
296         case LFUN_MOUSE_RELEASE:
297                 // if the derived inset did not explicitly handle mouse_release,
298                 // we assume we request the settings dialog
299                 if (!cur.selection() && cmd.button() == mouse_button::button1
300                           && hasSettings()) {
301                         FuncRequest tmpcmd(LFUN_INSET_SETTINGS);
302                         dispatch(cur, tmpcmd);
303                 }
304                 break;
305
306         case LFUN_INSET_SETTINGS:
307                 if (cmd.argument().empty() || cmd.getArg(0) == insetName(lyxCode())) {
308                         showInsetDialog(&cur.bv());
309                         cur.dispatched();
310                 } else
311                         cur.undispatched();
312                 break;
313
314         default:
315                 cur.noUpdate();
316                 cur.undispatched();
317                 break;
318         }
319 }
320
321
322 bool Inset::getStatus(Cursor &, FuncRequest const & cmd,
323         FuncStatus & flag) const
324 {
325         // LFUN_INSET_APPLY is sent from the dialogs when the data should
326         // be applied. This is either changed to LFUN_INSET_MODIFY (if the
327         // dialog belongs to us) or LFUN_INSET_INSERT (if the dialog does
328         // not belong to us, i. e. the dialog was open, and the user moved
329         // the cursor in our inset) in LyXFunc::getStatus().
330         // Dialogs::checkStatus() ensures that the dialog is deactivated if
331         // LFUN_INSET_APPLY is disabled.
332
333         switch (cmd.action) {
334         case LFUN_INSET_MODIFY:
335                 // Allow modification of our data.
336                 // This needs to be handled in the doDispatch method of our
337                 // instantiatable children.
338                 flag.setEnabled(true);
339                 return true;
340
341         case LFUN_INSET_INSERT:
342                 // Don't allow insertion of new insets.
343                 // Every inset that wants to allow new insets from open
344                 // dialogs needs to override this.
345                 flag.setEnabled(false);
346                 return true;
347
348         case LFUN_INSET_SETTINGS:
349                 if (cmd.argument().empty() || cmd.getArg(0) == insetName(lyxCode())) {
350                         bool const enable = hasSettings();
351                         flag.setEnabled(enable);
352                         return true;
353                 } else {
354                         flag.setEnabled(false);
355                         return false;
356                 }
357
358         default:
359                 break;
360         }
361         return false;
362 }
363
364
365 void Inset::edit(Cursor &, bool, EntryDirection)
366 {
367         LYXERR(Debug::INSETS, "edit left/right");
368 }
369
370
371 Inset * Inset::editXY(Cursor &, int x, int y)
372 {
373         LYXERR(Debug::INSETS, "x: " << x << " y: " << y);
374         return this;
375 }
376
377
378 Inset::idx_type Inset::index(row_type row, col_type col) const
379 {
380         if (row != 0)
381                 LYXERR0("illegal row: " << row);
382         if (col != 0)
383                 LYXERR0("illegal col: " << col);
384         return 0;
385 }
386
387
388 bool Inset::idxBetween(idx_type idx, idx_type from, idx_type to) const
389 {
390         return from <= idx && idx <= to;
391 }
392
393
394 bool Inset::idxUpDown(Cursor &, bool) const
395 {
396         return false;
397 }
398
399
400 int Inset::docbook(odocstream &, OutputParams const &) const
401 {
402         return 0;
403 }
404
405
406 docstring Inset::xhtml(odocstream & od, OutputParams const &) const
407 {
408         od << "[[Inset: " << from_ascii(insetName(lyxCode())) << "]]";
409         return docstring();
410 }
411
412 bool Inset::directWrite() const
413 {
414         return false;
415 }
416
417
418 bool Inset::editable() const
419 {
420         return false;
421 }
422
423
424 bool Inset::hasSettings() const
425 {
426         return false;
427 }
428
429
430
431 bool Inset::autoDelete() const
432 {
433         return false;
434 }
435
436
437 void Inset::cursorPos(BufferView const & /*bv*/, CursorSlice const &,
438                 bool, int & x, int & y) const
439 {
440         LYXERR0("Inset::cursorPos called directly");
441         x = 100;
442         y = 100;
443 }
444
445
446 void Inset::metricsMarkers(Dimension & dim, int framesize) const
447 {
448         dim.wid += 2 * framesize;
449         dim.des += framesize;
450 }
451
452
453 void Inset::metricsMarkers2(Dimension & dim, int framesize) const
454 {
455         dim.wid += 2 * framesize;
456         dim.asc += framesize;
457         dim.des += framesize;
458 }
459
460
461 void Inset::drawMarkers(PainterInfo & pi, int x, int y) const
462 {
463         ColorCode pen_color = mouseHovered() || editing(pi.base.bv)?
464                 Color_mathframe : Color_mathcorners;
465
466         Dimension const dim = dimension(*pi.base.bv);
467
468         int const t = x + dim.width() - 1;
469         int const d = y + dim.descent();
470         pi.pain.line(x, d - 3, x, d, pen_color);
471         pi.pain.line(t, d - 3, t, d, pen_color);
472         pi.pain.line(x, d, x + 3, d, pen_color);
473         pi.pain.line(t - 3, d, t, d, pen_color);
474         setPosCache(pi, x, y);
475 }
476
477
478 void Inset::drawMarkers2(PainterInfo & pi, int x, int y) const
479 {
480         ColorCode pen_color = mouseHovered() || editing(pi.base.bv)?
481                 Color_mathframe : Color_mathcorners;
482
483         drawMarkers(pi, x, y);
484         Dimension const dim = dimension(*pi.base.bv);
485         int const t = x + dim.width() - 1;
486         int const a = y - dim.ascent();
487         pi.pain.line(x, a + 3, x, a, pen_color);
488         pi.pain.line(t, a + 3, t, a, pen_color);
489         pi.pain.line(x, a, x + 3, a, pen_color);
490         pi.pain.line(t - 3, a, t, a, pen_color);
491         setPosCache(pi, x, y);
492 }
493
494
495 bool Inset::editing(BufferView const * bv) const
496 {
497         return bv->cursor().isInside(this);
498 }
499
500
501 int Inset::xo(BufferView const & bv) const
502 {
503         return bv.coordCache().getInsets().x(this);
504 }
505
506
507 int Inset::yo(BufferView const & bv) const
508 {
509         return bv.coordCache().getInsets().y(this);
510 }
511
512
513 bool Inset::covers(BufferView const & bv, int x, int y) const
514 {
515         return bv.coordCache().getInsets().covers(this, x, y);
516 }
517
518
519 InsetLayout const & Inset::getLayout() const
520 {
521         return buffer().params().documentClass().insetLayout(name());
522 }
523
524
525 bool Inset::undefined() const
526 {
527         docstring const & n = getLayout().name();
528         return n.empty() || n == DocumentClass::plainInsetLayout().name();
529 }
530
531
532 void Inset::dump() const
533 {
534         write(lyxerr);
535 }
536
537
538 ColorCode Inset::backgroundColor() const
539 {
540         return Color_none;
541 }
542
543
544 ColorCode Inset::labelColor() const
545 {
546         return Color_foreground;
547 }
548
549
550 void Inset::setPosCache(PainterInfo const & pi, int x, int y) const
551 {
552         //LYXERR("Inset: set position cache to " << x << " " << y);
553         pi.base.bv->coordCache().insets().add(this, x, y);
554 }
555
556
557 void Inset::setDimCache(MetricsInfo const & mi, Dimension const & dim) const
558 {
559         mi.base.bv->coordCache().insets().add(this, dim);
560 }
561
562
563 Buffer const * Inset::updateFrontend() const
564 {
565         return theApp() ? theApp()->updateInset(this) : 0;
566 }
567
568
569 docstring Inset::completionPrefix(Cursor const &) const 
570 {
571         return docstring();
572 }
573
574 } // namespace lyx