3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Stefan Schimanski
9 * Full author contact details are available in file CREDITS.
16 #include "InsetMathBrace.h"
17 #include "InsetMathFont.h"
18 #include "InsetMathScript.h"
19 #include "MacroTable.h"
20 #include "InsetMathMacro.h"
21 #include "MathStream.h"
22 #include "MathSupport.h"
23 #include "MetricsInfo.h"
24 #include "ReplaceData.h"
27 #include "BufferView.h"
28 #include "CoordCache.h"
31 #include "mathed/InsetMathUnknown.h"
33 #include "frontends/FontMetrics.h"
34 #include "frontends/Painter.h"
36 #include "support/debug.h"
37 #include "support/docstream.h"
38 #include "support/gettext.h"
39 #include "support/lassert.h"
40 #include "support/lyxalgo.h"
49 MathData::MathData(Buffer * buf, const_iterator from, const_iterator to)
50 : base_type(from, to), minasc_(0), mindes_(0), slevel_(0),
51 sshift_(0), kerning_(0), buffer_(buf)
55 MathAtom & MathData::operator[](pos_type pos)
57 LBUFERR(pos < size());
58 return base_type::operator[](pos);
62 MathAtom const & MathData::operator[](pos_type pos) const
64 LBUFERR(pos < size());
65 return base_type::operator[](pos);
69 void MathData::insert(size_type pos, MathAtom const & t)
71 LBUFERR(pos <= size());
72 base_type::insert(begin() + pos, t);
76 void MathData::insert(size_type pos, MathData const & ar)
78 LBUFERR(pos <= size());
79 base_type::insert(begin() + pos, ar.begin(), ar.end());
83 void MathData::append(MathData const & ar)
89 void MathData::erase(size_type pos)
96 void MathData::erase(iterator pos1, iterator pos2)
98 base_type::erase(pos1, pos2);
102 void MathData::erase(iterator pos)
104 base_type::erase(pos);
108 void MathData::erase(size_type pos1, size_type pos2)
110 base_type::erase(begin() + pos1, begin() + pos2);
114 void MathData::dump2() const
118 for (const_iterator it = begin(); it != end(); ++it)
120 lyxerr << to_utf8(os.str());
124 void MathData::dump() const
128 for (const_iterator it = begin(); it != end(); ++it)
129 ns << '<' << *it << '>';
130 lyxerr << to_utf8(os.str());
134 void MathData::validate(LaTeXFeatures & features) const
136 for (const_iterator it = begin(); it != end(); ++it)
137 (*it)->validate(features);
141 bool MathData::match(MathData const & ar) const
143 return size() == ar.size() && matchpart(ar, 0);
147 bool MathData::matchpart(MathData const & ar, pos_type pos) const
149 if (size() < ar.size() + pos)
151 const_iterator it = begin() + pos;
152 for (const_iterator jt = ar.begin(); jt != ar.end(); ++jt, ++it)
153 if (asString(*it) != asString(*jt))
159 void MathData::replace(ReplaceData & rep)
161 for (size_type i = 0; i < size(); ++i) {
162 if (find1(rep.from, i)) {
164 lyxerr << "match found!" << endl;
165 erase(i, i + rep.from.size());
170 // FIXME: temporarily disabled
171 // for (const_iterator it = begin(); it != end(); ++it)
172 // it->nucleus()->replace(rep);
176 bool MathData::find1(MathData const & ar, size_type pos) const
178 lyxerr << "finding '" << ar << "' in '" << *this << "'" << endl;
179 for (size_type i = 0, n = ar.size(); i < n; ++i)
180 if (asString(operator[](pos + i)) != asString(ar[i]))
186 MathData::size_type MathData::find(MathData const & ar) const
188 for (int i = 0, last = size() - ar.size(); i < last; ++i)
195 MathData::size_type MathData::find_last(MathData const & ar) const
197 for (int i = size() - ar.size(); i >= 0; --i)
204 bool MathData::contains(MathData const & ar) const
206 if (find(ar) != size())
208 for (const_iterator it = begin(); it != end(); ++it)
209 if ((*it)->contains(ar))
215 bool MathData::addToMathRow(MathRow & mrow, MetricsInfo & mi) const
217 bool has_contents = false;
218 BufferView * bv = mi.base.bv;
219 MathData * ar = const_cast<MathData*>(this);
220 ar->updateMacros(&bv->cursor(), mi.macrocontext,
221 InternalUpdate, mi.base.macro_nesting);
224 // FIXME: for completion, try to insert the relevant data in the
225 // mathrow (like is done for text rows). We could add a pair of
226 // InsetMathColor inset, but these come with extra spacing of
228 DocIterator const & inlineCompletionPos = bv->inlineCompletionPos();
229 bool const has_completion = inlineCompletionPos.inMathed()
230 && &inlineCompletionPos.cell() == this;
231 size_t const compl_pos = has_completion ? inlineCompletionPos.pos() : 0;
233 for (size_t i = 0 ; i < size() ; ++i) {
234 has_contents |= (*this)[i]->addToMathRow(mrow, mi);
235 if (i + 1 == compl_pos) {
236 mrow.back().compl_text = bv->inlineCompletion();
237 mrow.back().compl_unique_to = bv->inlineCompletionUniqueChars();
247 bool isInside(DocIterator const & it, MathData const & ar,
248 pos_type p1, pos_type p2)
250 for (size_t i = 0; i != it.depth(); ++i) {
251 CursorSlice const & sl = it[i];
252 if (sl.inset().inMathed() && &sl.cell() == &ar)
253 return p1 <= sl.pos() && sl.pos() < p2;
262 bool MathData::hasCaret(BufferView * bv) const
264 Cursor & cur = bv->cursor();
265 return cur.inMathed() && &cur.cell() == this;
269 void MathData::metrics(MetricsInfo & mi, Dimension & dim, bool tight) const
271 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
272 BufferView * bv = mi.base.bv;
273 int const Iascent = fm.dimension('I').ascent();
274 int xascent = fm.xHeight();
275 if (xascent >= Iascent)
276 xascent = (2 * Iascent) / 3;
278 mindes_ = (3 * xascent) / 4;
279 slevel_ = (4 * xascent) / 5;
280 sshift_ = xascent / 4;
282 MathRow mrow(mi, this);
283 bool has_caret = mrow.metrics(mi, dim);
284 mrow_cache_[bv] = mrow;
285 kerning_ = mrow.kerning(bv);
287 // Set a minimal ascent/descent for the cell
289 // FIXME: this is the minimal ascent seen empirically, check
290 // what the TeXbook says.
291 dim.asc = max(dim.asc, fm.xHeight());
293 dim.asc = max(dim.asc, fm.maxAscent());
294 dim.des = max(dim.des, fm.maxDescent());
297 // This is one of the the few points where the drawing font is known,
298 // so that we can set the caret vertical dimensions.
299 has_caret |= hasCaret(bv);
301 bv->setCaretAscentDescent(min(dim.asc, fm.maxAscent()),
302 min(dim.des, fm.maxDescent()));
304 // Cache the dimension.
305 bv->coordCache().arrays().add(this, dim);
309 void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
311 BufferView const * bv = pi.base.bv;
312 Cursor const & cur = bv->cursor();
313 InsetMath const * inset = cur.inset().asInsetMath();
314 if (!cur.selection() || !inset || inset->nargs() == 0)
317 CursorSlice const s1 = cur.selBegin();
318 CursorSlice const s2 = cur.selEnd();
319 MathData const & c1 = inset->cell(s1.idx());
321 if (s1.idx() == s2.idx() && &c1 == this) {
322 // selection indide cell
323 Dimension const dim = bv->coordCache().getArrays().dim(&c1);
324 int const beg = c1.pos2x(bv, s1.pos());
325 int const end = c1.pos2x(bv, s2.pos());
326 pi.pain.fillRectangle(x + beg, y - dim.ascent(),
327 end - beg, dim.height(), Color_selection);
329 for (idx_type i = 0; i < inset->nargs(); ++i) {
330 MathData const & c = inset->cell(i);
331 if (&c == this && inset->idxBetween(i, s1.idx(), s2.idx())) {
332 // The whole cell is selected
333 Dimension const dim = bv->coordCache().getArrays().dim(&c);
334 pi.pain.fillRectangle(x, y - dim.ascent(),
335 dim.width(), dim.height(),
343 void MathData::draw(PainterInfo & pi, int const x, int const y) const
345 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
346 setXY(*pi.base.bv, x, y);
348 drawSelection(pi, x, y);
349 MathRow const & mrow = mrow_cache_[pi.base.bv];
354 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
358 for (const_iterator it = begin(); it != end(); ++it) {
359 (*it)->metricsT(mi, d);
365 void MathData::drawT(TextPainter & pain, int x, int y) const
367 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
369 // FIXME: Abdel 16/10/2006
370 // This drawT() method is never used, this is dead code.
372 for (const_iterator it = begin(), et = end(); it != et; ++it) {
373 (*it)->drawT(pain, x, y);
374 //x += (*it)->width_;
380 void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
383 for (size_t i = 0, n = size(); i != n; ++i) {
384 MathAtom & at = operator[](i);
385 at.nucleus()->updateBuffer(it, utype);
390 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
391 UpdateType utype, int nesting)
393 // If we are editing a macro, we cannot update it immediately,
394 // otherwise wrong undo steps will be recorded (bug 6208).
395 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
396 InsetMathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
397 docstring const edited_name = inmacro ? inmacro->name() : docstring();
399 // go over the array and look for macros
400 for (size_t i = 0; i < size(); ++i) {
401 InsetMathMacro * macroInset = operator[](i).nucleus()->asMacro();
402 if (!macroInset || macroInset->macroName().empty()
403 || macroInset->macroName()[0] == '^'
404 || macroInset->macroName()[0] == '_'
405 || (macroInset->name() == edited_name
406 && macroInset->displayMode() ==
407 InsetMathMacro::DISPLAY_UNFOLDED))
411 macroInset->updateMacro(mc);
412 size_t macroNumArgs = 0;
413 size_t macroOptionals = 0;
414 MacroData const * macro = macroInset->macro();
416 macroNumArgs = macro->numargs();
417 macroOptionals = macro->optionals();
420 // store old and compute new display mode
421 InsetMathMacro::DisplayMode newDisplayMode;
422 InsetMathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
423 newDisplayMode = macroInset->computeDisplayMode();
425 // arity changed or other reason to detach?
426 if (oldDisplayMode == InsetMathMacro::DISPLAY_NORMAL
427 && (macroInset->arity() != macroNumArgs
428 || macroInset->optionals() != macroOptionals
429 || newDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED))
430 detachMacroParameters(cur, i);
432 // the macro could have been copied while resizing this
433 macroInset = operator[](i).nucleus()->asMacro();
436 if (newDisplayMode != InsetMathMacro::DISPLAY_UNFOLDED
437 && oldDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED) {
438 // put cursor in front of macro
440 int macroSlice = cur->find(macroInset);
441 if (macroSlice != -1)
442 cur->cutOff(macroSlice - 1);
446 // update the display mode
447 size_t appetite = macroInset->appetite();
448 macroInset->setDisplayMode(newDisplayMode);
451 if (newDisplayMode == InsetMathMacro::DISPLAY_NORMAL
452 && (macroInset->arity() != macroNumArgs
453 || macroInset->optionals() != macroOptionals)) {
454 // is it a virgin macro which was never attached to parameters?
455 bool fromInitToNormalMode
456 = (oldDisplayMode == InsetMathMacro::DISPLAY_INIT
457 || oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT)
458 && newDisplayMode == InsetMathMacro::DISPLAY_NORMAL;
460 // if the macro was entered interactively (i.e. not by paste or during
461 // loading), it should not be greedy, but the cursor should
462 // automatically jump into the macro when behind
463 bool interactive = (oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT);
466 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
467 fromInitToNormalMode, interactive, appetite);
470 cur->updateInsets(&cur->bottom().inset());
473 // Give macro the chance to adapt to new situation.
474 // The macroInset could be invalid now because it was put into a script
475 // inset and therefore "deep" copied. So get it again from the MathData.
476 InsetMath * inset = operator[](i).nucleus();
477 if (inset->asScriptInset())
478 inset = inset->asScriptInset()->nuc()[0].nucleus();
479 LASSERT(inset->asMacro(), continue);
480 inset->asMacro()->updateRepresentation(cur, mc, utype, nesting + 1);
485 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
487 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
488 // We store this now, because the inset pointer will be invalidated in the scond loop below
489 size_t const optionals = macroInset->optionals();
491 // detach all arguments
492 vector<MathData> detachedArgs;
493 if (macroPos + 1 == size())
494 // strip arguments if we are at the MathData end
495 macroInset->detachArguments(detachedArgs, true);
497 macroInset->detachArguments(detachedArgs, false);
500 int curMacroSlice = -1;
502 curMacroSlice = cur->find(macroInset);
503 idx_type curMacroIdx = -1;
504 pos_type curMacroPos = -1;
505 vector<CursorSlice> argSlices;
506 if (curMacroSlice != -1) {
507 curMacroPos = (*cur)[curMacroSlice].pos();
508 curMacroIdx = (*cur)[curMacroSlice].idx();
509 cur->cutOff(curMacroSlice, argSlices);
513 // only [] after the last non-empty argument can be dropped later
514 size_t lastNonEmptyOptional = 0;
515 for (size_t l = 0; l < detachedArgs.size() && l < optionals; ++l) {
516 if (!detachedArgs[l].empty())
517 lastNonEmptyOptional = l;
520 // optional arguments to be put back?
521 pos_type p = macroPos + 1;
523 // We do not want to use macroInset below, the insert() call in
524 // the loop will invalidate it.
526 for (; j < detachedArgs.size() && j < optionals; ++j) {
527 // another non-empty parameter follows?
528 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
530 // then we can drop empty optional parameters
531 if (detachedArgs[j].empty() && canDropEmptyOptional) {
532 if (curMacroIdx == j)
533 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
537 // Otherwise we don't drop an empty optional, put it back normally
539 asArray(from_ascii("[]"), optarg);
540 MathData & arg = detachedArgs[j];
542 // look for "]", i.e. put a brace around?
543 InsetMathBrace * brace = 0;
544 for (size_t q = 0; q < arg.size(); ++q) {
545 if (arg[q]->getChar() == ']') {
547 brace = new InsetMathBrace(buffer_);
552 // put arg between []
554 brace->cell(0) = arg;
555 optarg.insert(1, MathAtom(brace));
557 optarg.insert(1, arg);
559 // insert it into the array
564 if (curMacroSlice == -1)
567 // cursor in optional argument of macro?
568 if (curMacroIdx == j) {
570 cur->append(0, curMacroPos);
571 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
573 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
574 cur->append(argSlices);
575 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
576 // cursor right of macro
577 (*cur)[curMacroSlice - 1].pos() += optarg.size();
580 // put them back into the MathData
581 for (; j < detachedArgs.size(); ++j, ++p) {
582 MathData const & arg = detachedArgs[j];
584 && !arg[0]->asScriptInset()
585 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
588 insert(p, MathAtom(new InsetMathBrace(arg)));
591 if (curMacroSlice == -1)
594 // cursor in j-th argument of macro?
595 if (curMacroIdx == j) {
596 if (operator[](p).nucleus()->asBraceInset()) {
597 (*cur)[curMacroSlice - 1].pos() = p;
598 cur->append(0, curMacroPos);
599 cur->append(argSlices);
601 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
602 cur->append(argSlices);
604 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
605 ++(*cur)[curMacroSlice - 1].pos();
609 cur->updateInsets(&cur->bottom().inset());
613 void MathData::attachMacroParameters(Cursor * cur,
614 const size_type macroPos, const size_type macroNumArgs,
615 const int macroOptionals, const bool fromInitToNormalMode,
616 const bool interactiveInit, const size_t appetite)
618 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
620 // start at atom behind the macro again, maybe with some new arguments
621 // from the detach phase above, to add them back into the macro inset
622 size_t p = macroPos + 1;
623 vector<MathData> detachedArgs;
624 MathAtom scriptToPutAround;
626 // find cursor slice again of this MathData
629 thisSlice = cur->find(*this);
632 thisPos = (*cur)[thisSlice].pos();
634 // find arguments behind the macro
635 if (!interactiveInit) {
636 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
637 scriptToPutAround, macroPos, thisPos, thisSlice);
639 collectParameters(cur, macroNumArgs, detachedArgs, p,
640 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
642 // attach arguments back to macro inset
643 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
645 // found tail script? E.g. \foo{a}b^x
646 if (scriptToPutAround.nucleus()) {
647 InsetMathScript * scriptInset =
648 scriptToPutAround.nucleus()->asScriptInset();
649 // In the math parser we remove empty braces in the base
650 // of a script inset, but we have to restore them here.
651 if (scriptInset->nuc().empty()) {
653 scriptInset->nuc().push_back(
654 MathAtom(new InsetMathBrace(ar)));
656 // put macro into a script inset
657 scriptInset->nuc()[0] = operator[](macroPos);
658 operator[](macroPos) = scriptToPutAround;
660 // go into the script inset nucleus
661 if (cur && thisPos == int(macroPos))
664 // get pointer to "deep" copied macro inset
665 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
666 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
669 // remove them from the MathData
670 erase(macroPos + 1, p);
672 // cursor outside this MathData?
676 // fix cursor if right of p
677 if (thisPos >= int(p))
678 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
680 // was the macro inset just inserted interactively and was now folded
681 // and the cursor is just behind?
682 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
684 && fromInitToNormalMode
685 && macroInset->arity() > 0
686 && thisSlice + 1 == int(cur->depth())) {
687 // then enter it if the cursor was just behind
688 (*cur)[thisSlice].pos() = macroPos;
689 cur->push_back(CursorSlice(*macroInset));
690 macroInset->idxFirst(*cur);
695 void MathData::collectOptionalParameters(Cursor * cur,
696 const size_type numOptionalParams, vector<MathData> & params,
697 size_t & pos, MathAtom & scriptToPutAround,
698 const pos_type macroPos, const int thisPos, const int thisSlice)
700 Buffer * buf = cur ? cur->buffer() : 0;
701 // insert optional arguments?
702 while (params.size() < numOptionalParams
704 && !scriptToPutAround.nucleus()) {
705 // is a [] block following which could be an optional parameter?
706 if (operator[](pos)->getChar() != '[')
709 // found possible optional argument, look for pairing "]"
711 size_t right = pos + 1;
712 for (; right < size(); ++right) {
713 MathAtom & cell = operator[](right);
715 if (cell->getChar() == '[')
717 else if (cell->getChar() == ']' && --count == 0)
721 // maybe "]" with a script around?
722 InsetMathScript * script = cell.nucleus()->asScriptInset();
725 if (script->nuc().size() != 1)
727 if (script->nuc()[0]->getChar() == ']') {
728 // script will be put around the macro later
729 scriptToPutAround = cell;
735 if (right >= size()) {
736 // no ] found, so it's not an optional argument
740 // add everything between [ and ] as optional argument
741 MathData optarg(buf, begin() + pos + 1, begin() + right);
745 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
747 params.push_back(optarg[0]->asBraceInset()->cell(0));
749 params.push_back(optarg);
751 // place cursor in optional argument of macro
752 // Note: The two expressions on the first line are equivalent
753 // (see caller), but making this explicit pleases coverity.
754 if (cur && thisSlice != -1
755 && thisPos >= int(pos) && thisPos <= int(right)) {
756 int paramPos = max(0, thisPos - int(pos) - 1);
757 vector<CursorSlice> x;
758 cur->cutOff(thisSlice, x);
759 (*cur)[thisSlice].pos() = macroPos;
761 paramPos = x[0].pos();
764 cur->append(0, paramPos);
770 // fill up empty optional parameters
771 while (params.size() < numOptionalParams)
772 params.push_back(MathData());
776 void MathData::collectParameters(Cursor * cur,
777 const size_type numParams, vector<MathData> & params,
778 size_t & pos, MathAtom & scriptToPutAround,
779 const pos_type macroPos, const int thisPos, const int thisSlice,
780 const size_t appetite)
782 size_t startSize = params.size();
784 // insert normal arguments
785 while (params.size() < numParams
786 && params.size() - startSize < appetite
788 && !scriptToPutAround.nucleus()) {
789 MathAtom & cell = operator[](pos);
792 vector<CursorSlice> argSlices;
794 // Note: The two expressions on the first line are equivalent
795 // (see caller), but making this explicit pleases coverity.
796 if (cur && thisSlice != -1
797 && thisPos == int(pos))
798 cur->cutOff(thisSlice, argSlices);
800 // which kind of parameter is it? In {}? With index x^n?
801 InsetMathBrace const * brace = cell->asBraceInset();
803 // found brace, convert into argument
804 params.push_back(brace->cell(0));
806 // cursor inside of the brace or just in front of?
807 if (thisPos == int(pos) && !argSlices.empty()) {
808 argPos = argSlices[0].pos();
809 argSlices.erase(argSlices.begin());
811 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
812 // last inset with scripts without braces
813 // -> they belong to the macro, not the argument
814 InsetMathScript * script = cell.nucleus()->asScriptInset();
815 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
816 // nucleus in brace? Unpack!
817 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
819 params.push_back(script->nuc());
821 // script will be put around below
822 scriptToPutAround = cell;
824 // this should only happen after loading, so make cursor handling simple
825 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
831 // the simplest case: plain inset
833 array.insert(0, cell);
834 params.push_back(array);
837 // put cursor in argument again
838 // Note: The first two expressions on the first line are
839 // equivalent (see caller), but making this explicit pleases
841 if (cur && thisSlice != -1 && thisPos == int(pos)) {
842 cur->append(params.size() - 1, argPos);
843 cur->append(argSlices);
844 (*cur)[thisSlice].pos() = macroPos;
852 int MathData::pos2x(BufferView const * bv, size_type pos) const
855 size_type target = min(pos, size());
856 CoordCache::Insets const & coords = bv->coordCache().getInsets();
857 for (size_type i = 0; i < target; ++i) {
858 const_iterator it = begin() + i;
859 //lyxerr << "char: " << (*it)->getChar()
860 // << "width: " << (*it)->width() << endl;
861 x += coords.dim((*it).nucleus()).wid;
867 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
869 const_iterator it = begin();
872 CoordCache::Insets const & coords = bv->coordCache().getInsets();
873 // find first position after targetx
874 for (; currx < targetx && it != end(); ++it) {
876 currx += coords.dim((*it).nucleus()).wid;
880 * If we are not at the beginning of the array, go to the left
881 * of the inset if one of the following two condition holds:
882 * - the current inset is editable (so that the cursor tip is
883 * deeper than us): in this case, we want all intermediate
884 * cursor slices to be before insets;
885 * - the mouse is closer to the left side of the inset than to
887 * See bug 1918 for details.
889 if (it != begin() && currx >= targetx
890 && ((*prev(it, 1))->asNestInset()
891 || abs(lastx - targetx) < abs(currx - targetx))) {
899 int MathData::dist(BufferView const & bv, int x, int y) const
901 return bv.coordCache().getArrays().squareDistance(this, x, y);
905 void MathData::setXY(BufferView & bv, int x, int y) const
907 //lyxerr << "setting position cache for MathData " << this << endl;
908 bv.coordCache().arrays().add(this, x, y);
912 Dimension const & MathData::dimension(BufferView const & bv) const
914 return bv.coordCache().getArrays().dim(this);
918 int MathData::xm(BufferView const & bv) const
920 Geometry const & g = bv.coordCache().getArrays().geometry(this);
922 return g.pos.x_ + g.dim.wid / 2;
926 int MathData::ym(BufferView const & bv) const
928 Geometry const & g = bv.coordCache().getArrays().geometry(this);
930 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
934 int MathData::xo(BufferView const & bv) const
936 return bv.coordCache().getArrays().x(this);
940 int MathData::yo(BufferView const & bv) const
942 return bv.coordCache().getArrays().y(this);
946 MathClass MathData::mathClass() const
948 MathClass res = MC_UNKNOWN;
949 for (MathAtom const & at : *this) {
950 MathClass mc = at->mathClass();
951 if (res == MC_UNKNOWN)
953 else if (mc != MC_UNKNOWN && res != mc)
956 return res == MC_UNKNOWN ? MC_ORD : res;
960 ostream & operator<<(ostream & os, MathData const & ar)
962 odocstringstream oss;
963 NormalStream ns(oss);
965 return os << to_utf8(oss.str());
969 odocstream & operator<<(odocstream & os, MathData const & ar)