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), buffer_(buf)
55 void MathData::setBuffer(Buffer & b)
58 for (MathAtom & at : *this)
59 at.nucleus()->setBuffer(b);
63 MathAtom & MathData::operator[](pos_type pos)
65 LBUFERR(pos < size());
66 return base_type::operator[](pos);
70 MathAtom const & MathData::operator[](pos_type pos) const
72 LBUFERR(pos < size());
73 return base_type::operator[](pos);
77 void MathData::insert(size_type pos, MathAtom const & t)
79 LBUFERR(pos <= size());
80 base_type::insert(begin() + pos, t);
84 void MathData::insert(size_type pos, MathData const & ar)
86 LBUFERR(pos <= size());
87 base_type::insert(begin() + pos, ar.begin(), ar.end());
91 void MathData::append(MathData const & ar)
97 void MathData::erase(size_type pos)
104 void MathData::erase(iterator pos1, iterator pos2)
106 base_type::erase(pos1, pos2);
110 void MathData::erase(iterator pos)
112 base_type::erase(pos);
116 void MathData::erase(size_type pos1, size_type pos2)
118 base_type::erase(begin() + pos1, begin() + pos2);
122 void MathData::dump2() const
126 for (const_iterator it = begin(); it != end(); ++it)
128 lyxerr << to_utf8(os.str());
132 void MathData::dump() const
136 for (const_iterator it = begin(); it != end(); ++it)
137 ns << '<' << *it << '>';
138 lyxerr << to_utf8(os.str());
142 void MathData::validate(LaTeXFeatures & features) const
144 for (const_iterator it = begin(); it != end(); ++it)
145 (*it)->validate(features);
149 bool MathData::match(MathData const & ar) const
151 return size() == ar.size() && matchpart(ar, 0);
155 bool MathData::matchpart(MathData const & ar, pos_type pos) const
157 if (size() < ar.size() + pos)
159 const_iterator it = begin() + pos;
160 for (const_iterator jt = ar.begin(); jt != ar.end(); ++jt, ++it)
161 if (asString(*it) != asString(*jt))
167 void MathData::replace(ReplaceData & rep)
169 for (size_type i = 0; i < size(); ++i) {
170 if (find1(rep.from, i)) {
172 lyxerr << "match found!" << endl;
173 erase(i, i + rep.from.size());
178 // FIXME: temporarily disabled
179 // for (const_iterator it = begin(); it != end(); ++it)
180 // it->nucleus()->replace(rep);
184 bool MathData::find1(MathData const & ar, size_type pos) const
186 lyxerr << "finding '" << ar << "' in '" << *this << "'" << endl;
187 for (size_type i = 0, n = ar.size(); i < n; ++i)
188 if (asString(operator[](pos + i)) != asString(ar[i]))
194 MathData::size_type MathData::find(MathData const & ar) const
196 for (int i = 0, last = size() - ar.size(); i < last; ++i)
203 MathData::size_type MathData::find_last(MathData const & ar) const
205 for (int i = size() - ar.size(); i >= 0; --i)
212 bool MathData::contains(MathData const & ar) const
214 if (find(ar) != size())
216 for (const_iterator it = begin(); it != end(); ++it)
217 if ((*it)->contains(ar))
223 bool MathData::addToMathRow(MathRow & mrow, MetricsInfo & mi) const
225 bool has_contents = false;
226 BufferView * bv = mi.base.bv;
227 MathData * ar = const_cast<MathData*>(this);
228 ar->updateMacros(&bv->cursor(), mi.macrocontext,
229 InternalUpdate, mi.base.macro_nesting);
232 // FIXME: for completion, try to insert the relevant data in the
233 // mathrow (like is done for text rows). We could add a pair of
234 // InsetMathColor inset, but these come with extra spacing of
236 DocIterator const & inlineCompletionPos = bv->inlineCompletionPos();
237 bool const has_completion = inlineCompletionPos.inMathed()
238 && &inlineCompletionPos.cell() == this;
239 size_t const compl_pos = has_completion ? inlineCompletionPos.pos() : 0;
241 for (size_t i = 0 ; i < size() ; ++i) {
242 has_contents |= (*this)[i]->addToMathRow(mrow, mi);
243 if (i + 1 == compl_pos) {
244 mrow.back().compl_text = bv->inlineCompletion();
245 mrow.back().compl_unique_to = bv->inlineCompletionUniqueChars();
255 bool isInside(DocIterator const & it, MathData const & ar,
256 pos_type p1, pos_type p2)
258 for (size_t i = 0; i != it.depth(); ++i) {
259 CursorSlice const & sl = it[i];
260 if (sl.inset().inMathed() && &sl.cell() == &ar)
261 return p1 <= sl.pos() && sl.pos() < p2;
270 void MathData::metrics(MetricsInfo & mi, Dimension & dim, bool tight) const
272 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
273 BufferView * bv = mi.base.bv;
274 int const Iascent = fm.dimension('I').ascent();
275 int xascent = fm.xHeight();
276 if (xascent >= Iascent)
277 xascent = (2 * Iascent) / 3;
279 mindes_ = (3 * xascent) / 4;
280 slevel_ = (4 * xascent) / 5;
281 sshift_ = xascent / 4;
283 MathRow mrow(mi, this);
284 mrow.metrics(mi, dim);
286 // Set a minimal ascent/descent for the cell
288 // FIXME: this is the minimal ascent seen empirically, check
289 // what the TeXbook says.
290 dim.asc = max(dim.asc, fm.xHeight());
292 dim.asc = max(dim.asc, fm.maxAscent());
293 dim.des = max(dim.des, fm.maxDescent());
296 // This is one of the the few points where the drawing font is known,
297 // so that we can set the caret vertical dimensions.
298 mrow.caret_ascent = min(dim.asc, fm.maxAscent());
299 mrow.caret_descent = min(dim.des, fm.maxDescent());
300 /// do the same for math cells linearized in the row
301 MathRow caret_row = MathRow(mrow.caret_ascent, mrow.caret_descent);
302 for (auto const & e : mrow)
303 if (e.type == MathRow::BEGIN && e.ar)
304 bv->setMathRow(e.ar, caret_row);
306 // Cache row and dimension.
307 bv->setMathRow(this, mrow);
308 bv->coordCache().arrays().add(this, dim);
312 void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
314 BufferView const * bv = pi.base.bv;
315 Cursor const & cur = bv->cursor();
316 InsetMath const * inset = cur.inset().asInsetMath();
317 if (!cur.selection() || !inset || inset->nargs() == 0)
320 CursorSlice const s1 = cur.selBegin();
321 CursorSlice const s2 = cur.selEnd();
322 MathData const & c1 = inset->cell(s1.idx());
324 if (s1.idx() == s2.idx() && &c1 == this) {
325 // selection inside cell
326 Dimension const dim = bv->coordCache().getArrays().dim(&c1);
327 int const beg = c1.pos2x(bv, s1.pos());
328 int const end = c1.pos2x(bv, s2.pos());
329 pi.pain.fillRectangle(x + beg, y - dim.ascent(),
330 end - beg, dim.height(), Color_selection);
332 for (idx_type i = 0; i < inset->nargs(); ++i) {
333 MathData const & c = inset->cell(i);
334 if (&c == this && inset->idxBetween(i, s1.idx(), s2.idx())) {
335 // The whole cell is selected
336 Dimension const dim = bv->coordCache().getArrays().dim(&c);
337 pi.pain.fillRectangle(x, y - dim.ascent(),
338 dim.width(), dim.height(),
346 void MathData::draw(PainterInfo & pi, int const x, int const y) const
348 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
349 setXY(*pi.base.bv, x, y);
351 drawSelection(pi, x, y);
352 MathRow const & mrow = pi.base.bv->mathRow(this);
357 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
361 for (const_iterator it = begin(); it != end(); ++it) {
362 (*it)->metricsT(mi, d);
368 void MathData::drawT(TextPainter & pain, int x, int y) const
370 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
372 // FIXME: Abdel 16/10/2006
373 // This drawT() method is never used, this is dead code.
375 for (const_iterator it = begin(), et = end(); it != et; ++it) {
376 (*it)->drawT(pain, x, y);
377 //x += (*it)->width_;
383 int MathData::kerning(BufferView const * bv) const
385 return bv->mathRow(this).kerning(bv);
389 void MathData::updateBuffer(ParIterator const & it, UpdateType utype, bool const deleted)
392 for (size_t i = 0, n = size(); i != n; ++i) {
393 MathAtom & at = operator[](i);
394 at.nucleus()->updateBuffer(it, utype, deleted);
399 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
400 UpdateType utype, int nesting)
402 // If we are editing a macro, we cannot update it immediately,
403 // otherwise wrong undo steps will be recorded (bug 6208).
404 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
405 InsetMathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
406 docstring const edited_name = inmacro ? inmacro->name() : docstring();
408 // go over the array and look for macros
409 for (size_t i = 0; i < size(); ++i) {
410 InsetMathMacro * macroInset = operator[](i).nucleus()->asMacro();
411 if (!macroInset || macroInset->macroName().empty()
412 || macroInset->macroName()[0] == '^'
413 || macroInset->macroName()[0] == '_'
414 || (macroInset->name() == edited_name
415 && macroInset->displayMode() ==
416 InsetMathMacro::DISPLAY_UNFOLDED))
420 macroInset->updateMacro(mc);
421 size_t macroNumArgs = 0;
422 size_t macroOptionals = 0;
423 MacroData const * macro = macroInset->macro();
425 macroNumArgs = macro->numargs();
426 macroOptionals = macro->optionals();
429 // store old and compute new display mode
430 InsetMathMacro::DisplayMode newDisplayMode;
431 InsetMathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
432 newDisplayMode = macroInset->computeDisplayMode();
434 // arity changed or other reason to detach?
435 if (oldDisplayMode == InsetMathMacro::DISPLAY_NORMAL
436 && (macroInset->arity() != macroNumArgs
437 || macroInset->optionals() != macroOptionals
438 || newDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED))
439 detachMacroParameters(cur, i);
441 // the macro could have been copied while resizing this
442 macroInset = operator[](i).nucleus()->asMacro();
445 if (newDisplayMode != InsetMathMacro::DISPLAY_UNFOLDED
446 && oldDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED) {
447 // put cursor in front of macro
449 int macroSlice = cur->find(macroInset);
450 if (macroSlice != -1)
451 cur->cutOff(macroSlice - 1);
455 // update the display mode
456 size_t appetite = macroInset->appetite();
457 macroInset->setDisplayMode(newDisplayMode);
460 if (newDisplayMode == InsetMathMacro::DISPLAY_NORMAL
461 && (macroInset->arity() != macroNumArgs
462 || macroInset->optionals() != macroOptionals)) {
463 // is it a virgin macro which was never attached to parameters?
464 bool fromInitToNormalMode
465 = (oldDisplayMode == InsetMathMacro::DISPLAY_INIT
466 || oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT)
467 && newDisplayMode == InsetMathMacro::DISPLAY_NORMAL;
469 // if the macro was entered interactively (i.e. not by paste or during
470 // loading), it should not be greedy, but the cursor should
471 // automatically jump into the macro when behind
472 bool interactive = (oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT);
475 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
476 fromInitToNormalMode, interactive, appetite);
479 cur->updateInsets(&cur->bottom().inset());
482 // Give macro the chance to adapt to new situation.
483 // The macroInset could be invalid now because it was put into a script
484 // inset and therefore "deep" copied. So get it again from the MathData.
485 InsetMath * inset = operator[](i).nucleus();
486 if (inset->asScriptInset())
487 inset = inset->asScriptInset()->nuc()[0].nucleus();
488 LASSERT(inset->asMacro(), continue);
489 inset->asMacro()->updateRepresentation(cur, mc, utype, nesting + 1);
494 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
496 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
497 // We store this now, because the inset pointer will be invalidated in the scond loop below
498 size_t const optionals = macroInset->optionals();
500 // detach all arguments
501 vector<MathData> detachedArgs;
502 if (macroPos + 1 == size())
503 // strip arguments if we are at the MathData end
504 macroInset->detachArguments(detachedArgs, true);
506 macroInset->detachArguments(detachedArgs, false);
509 int curMacroSlice = -1;
511 curMacroSlice = cur->find(macroInset);
512 idx_type curMacroIdx = -1;
513 pos_type curMacroPos = -1;
514 vector<CursorSlice> argSlices;
515 if (curMacroSlice != -1) {
516 curMacroPos = (*cur)[curMacroSlice].pos();
517 curMacroIdx = (*cur)[curMacroSlice].idx();
518 cur->cutOff(curMacroSlice, argSlices);
522 // only [] after the last non-empty argument can be dropped later
523 size_t lastNonEmptyOptional = 0;
524 for (size_t l = 0; l < detachedArgs.size() && l < optionals; ++l) {
525 if (!detachedArgs[l].empty())
526 lastNonEmptyOptional = l;
529 // optional arguments to be put back?
530 pos_type p = macroPos + 1;
532 // We do not want to use macroInset below, the insert() call in
533 // the loop will invalidate it.
535 for (; j < detachedArgs.size() && j < optionals; ++j) {
536 // another non-empty parameter follows?
537 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
539 // then we can drop empty optional parameters
540 if (detachedArgs[j].empty() && canDropEmptyOptional) {
541 if (curMacroIdx == j)
542 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
546 // Otherwise we don't drop an empty optional, put it back normally
548 asArray(from_ascii("[]"), optarg);
549 MathData & arg = detachedArgs[j];
551 // look for "]", i.e. put a brace around?
552 InsetMathBrace * brace = 0;
553 for (size_t q = 0; q < arg.size(); ++q) {
554 if (arg[q]->getChar() == ']') {
556 brace = new InsetMathBrace(buffer_);
561 // put arg between []
563 brace->cell(0) = arg;
564 optarg.insert(1, MathAtom(brace));
566 optarg.insert(1, arg);
568 // insert it into the array
573 if (curMacroSlice == -1)
576 // cursor in optional argument of macro?
577 if (curMacroIdx == j) {
579 cur->append(0, curMacroPos);
580 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
582 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
583 cur->append(argSlices);
584 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
585 // cursor right of macro
586 (*cur)[curMacroSlice - 1].pos() += optarg.size();
589 // put them back into the MathData
590 for (; j < detachedArgs.size(); ++j, ++p) {
591 MathData const & arg = detachedArgs[j];
593 && !arg[0]->asScriptInset()
594 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
597 insert(p, MathAtom(new InsetMathBrace(arg)));
600 if (curMacroSlice == -1)
603 // cursor in j-th argument of macro?
604 if (curMacroIdx == j) {
605 if (operator[](p).nucleus()->asBraceInset()) {
606 (*cur)[curMacroSlice - 1].pos() = p;
607 cur->append(0, curMacroPos);
608 cur->append(argSlices);
610 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
611 cur->append(argSlices);
613 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
614 ++(*cur)[curMacroSlice - 1].pos();
618 cur->updateInsets(&cur->bottom().inset());
622 void MathData::attachMacroParameters(Cursor * cur,
623 const size_type macroPos, const size_type macroNumArgs,
624 const int macroOptionals, const bool fromInitToNormalMode,
625 const bool interactiveInit, const size_t appetite)
627 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
629 // start at atom behind the macro again, maybe with some new arguments
630 // from the detach phase above, to add them back into the macro inset
631 size_t p = macroPos + 1;
632 vector<MathData> detachedArgs;
633 MathAtom scriptToPutAround;
635 // find cursor slice again of this MathData
638 thisSlice = cur->find(*this);
641 thisPos = (*cur)[thisSlice].pos();
643 // find arguments behind the macro
644 if (!interactiveInit) {
645 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
646 scriptToPutAround, macroPos, thisPos, thisSlice);
648 collectParameters(cur, macroNumArgs, detachedArgs, p,
649 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
651 // attach arguments back to macro inset
652 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
654 // found tail script? E.g. \foo{a}b^x
655 if (scriptToPutAround.nucleus()) {
656 InsetMathScript * scriptInset =
657 scriptToPutAround.nucleus()->asScriptInset();
658 // In the math parser we remove empty braces in the base
659 // of a script inset, but we have to restore them here.
660 if (scriptInset->nuc().empty()) {
662 scriptInset->nuc().push_back(
663 MathAtom(new InsetMathBrace(ar)));
665 // put macro into a script inset
666 scriptInset->nuc()[0] = operator[](macroPos);
667 operator[](macroPos) = scriptToPutAround;
669 // go into the script inset nucleus
670 if (cur && thisPos == int(macroPos))
673 // get pointer to "deep" copied macro inset
674 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
675 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
678 // remove them from the MathData
679 erase(macroPos + 1, p);
681 // cursor outside this MathData?
685 // fix cursor if right of p
686 if (thisPos >= int(p))
687 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
689 // was the macro inset just inserted interactively and was now folded
690 // and the cursor is just behind?
691 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
693 && fromInitToNormalMode
694 && macroInset->arity() > 0
695 && thisSlice + 1 == int(cur->depth())) {
696 // then enter it if the cursor was just behind
697 (*cur)[thisSlice].pos() = macroPos;
698 cur->push_back(CursorSlice(*macroInset));
699 macroInset->idxFirst(*cur);
704 void MathData::collectOptionalParameters(Cursor * cur,
705 const size_type numOptionalParams, vector<MathData> & params,
706 size_t & pos, MathAtom & scriptToPutAround,
707 const pos_type macroPos, const int thisPos, const int thisSlice)
709 Buffer * buf = cur ? cur->buffer() : 0;
710 // insert optional arguments?
711 while (params.size() < numOptionalParams
713 && !scriptToPutAround.nucleus()) {
714 // is a [] block following which could be an optional parameter?
715 if (operator[](pos)->getChar() != '[')
718 // found possible optional argument, look for pairing "]"
720 size_t right = pos + 1;
721 for (; right < size(); ++right) {
722 MathAtom & cell = operator[](right);
724 if (cell->getChar() == '[')
726 else if (cell->getChar() == ']' && --count == 0)
730 // maybe "]" with a script around?
731 InsetMathScript * script = cell.nucleus()->asScriptInset();
734 if (script->nuc().size() != 1)
736 if (script->nuc()[0]->getChar() == ']') {
737 // script will be put around the macro later
738 scriptToPutAround = cell;
744 if (right >= size()) {
745 // no ] found, so it's not an optional argument
749 // add everything between [ and ] as optional argument
750 MathData optarg(buf, begin() + pos + 1, begin() + right);
754 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
756 params.push_back(optarg[0]->asBraceInset()->cell(0));
758 params.push_back(optarg);
760 // place cursor in optional argument of macro
761 // Note: The two expressions on the first line are equivalent
762 // (see caller), but making this explicit pleases coverity.
763 if (cur && thisSlice != -1
764 && thisPos >= int(pos) && thisPos <= int(right)) {
765 int paramPos = max(0, thisPos - int(pos) - 1);
766 vector<CursorSlice> x;
767 cur->cutOff(thisSlice, x);
768 (*cur)[thisSlice].pos() = macroPos;
770 paramPos = x[0].pos();
773 cur->append(0, paramPos);
779 // fill up empty optional parameters
780 while (params.size() < numOptionalParams)
781 params.push_back(MathData());
785 void MathData::collectParameters(Cursor * cur,
786 const size_type numParams, vector<MathData> & params,
787 size_t & pos, MathAtom & scriptToPutAround,
788 const pos_type macroPos, const int thisPos, const int thisSlice,
789 const size_t appetite)
791 size_t startSize = params.size();
793 // insert normal arguments
794 while (params.size() < numParams
795 && params.size() - startSize < appetite
797 && !scriptToPutAround.nucleus()) {
798 MathAtom & cell = operator[](pos);
801 vector<CursorSlice> argSlices;
803 // Note: The two expressions on the first line are equivalent
804 // (see caller), but making this explicit pleases coverity.
805 if (cur && thisSlice != -1
806 && thisPos == int(pos))
807 cur->cutOff(thisSlice, argSlices);
809 // which kind of parameter is it? In {}? With index x^n?
810 InsetMathBrace const * brace = cell->asBraceInset();
812 // found brace, convert into argument
813 params.push_back(brace->cell(0));
815 // cursor inside of the brace or just in front of?
816 if (thisPos == int(pos) && !argSlices.empty()) {
817 argPos = argSlices[0].pos();
818 argSlices.erase(argSlices.begin());
820 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
821 // last inset with scripts without braces
822 // -> they belong to the macro, not the argument
823 InsetMathScript * script = cell.nucleus()->asScriptInset();
824 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
825 // nucleus in brace? Unpack!
826 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
828 params.push_back(script->nuc());
830 // script will be put around below
831 scriptToPutAround = cell;
833 // this should only happen after loading, so make cursor handling simple
834 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
840 // the simplest case: plain inset
842 array.insert(0, cell);
843 params.push_back(array);
846 // put cursor in argument again
847 // Note: The first two expressions on the first line are
848 // equivalent (see caller), but making this explicit pleases
850 if (cur && thisSlice != -1 && thisPos == int(pos)) {
851 cur->append(params.size() - 1, argPos);
852 cur->append(argSlices);
853 (*cur)[thisSlice].pos() = macroPos;
861 int MathData::pos2x(BufferView const * bv, size_type pos) const
864 size_type target = min(pos, size());
865 CoordCache::Insets const & coords = bv->coordCache().getInsets();
866 for (size_type i = 0; i < target; ++i) {
867 const_iterator it = begin() + i;
868 //lyxerr << "char: " << (*it)->getChar()
869 // << "width: " << (*it)->width() << endl;
870 x += coords.dim((*it).nucleus()).wid;
876 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
878 const_iterator it = begin();
881 CoordCache::Insets const & coords = bv->coordCache().getInsets();
882 // find first position after targetx
883 for (; currx < targetx && it != end(); ++it) {
885 currx += coords.dim((*it).nucleus()).wid;
889 * If we are not at the beginning of the array, go to the left
890 * of the inset if one of the following two condition holds:
891 * - the current inset is editable (so that the cursor tip is
892 * deeper than us): in this case, we want all intermediate
893 * cursor slices to be before insets;
894 * - the mouse is closer to the left side of the inset than to
896 * See bug 1918 for details.
898 if (it != begin() && currx >= targetx
899 && ((*prev(it, 1))->asNestInset()
900 || abs(lastx - targetx) < abs(currx - targetx))) {
908 int MathData::dist(BufferView const & bv, int x, int y) const
910 return bv.coordCache().getArrays().squareDistance(this, x, y);
914 void MathData::setXY(BufferView & bv, int x, int y) const
916 //lyxerr << "setting position cache for MathData " << this << endl;
917 bv.coordCache().arrays().add(this, x, y);
921 Dimension const & MathData::dimension(BufferView const & bv) const
923 return bv.coordCache().getArrays().dim(this);
927 int MathData::xm(BufferView const & bv) const
929 Geometry const & g = bv.coordCache().getArrays().geometry(this);
931 return g.pos.x_ + g.dim.wid / 2;
935 int MathData::ym(BufferView const & bv) const
937 Geometry const & g = bv.coordCache().getArrays().geometry(this);
939 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
943 int MathData::xo(BufferView const & bv) const
945 return bv.coordCache().getArrays().x(this);
949 int MathData::yo(BufferView const & bv) const
951 return bv.coordCache().getArrays().y(this);
955 MathClass MathData::mathClass() const
957 MathClass res = MC_UNKNOWN;
958 for (MathAtom const & at : *this) {
959 MathClass mc = at->mathClass();
960 if (res == MC_UNKNOWN)
962 else if (mc != MC_UNKNOWN && res != mc)
965 return res == MC_UNKNOWN ? MC_ORD : res;
969 ostream & operator<<(ostream & os, MathData const & ar)
971 odocstringstream oss;
972 NormalStream ns(oss);
974 return os << to_utf8(oss.str());
978 odocstream & operator<<(odocstream & os, MathData const & ar)