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_dim.asc = min(dim.asc, fm.maxAscent());
299 mrow.caret_dim.des = min(dim.des, fm.maxDescent());
300 mrow.caret_dim.wid = fm.lineWidth();
302 /// do the same for math cells linearized in the row
303 MathRow caret_row = MathRow(mrow.caret_dim);
304 for (auto const & e : mrow)
305 if (e.type == MathRow::BEGIN && e.ar)
306 bv->setMathRow(e.ar, caret_row);
308 // Cache row and dimension.
309 bv->setMathRow(this, mrow);
310 bv->coordCache().arrays().add(this, dim);
314 void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
316 BufferView const * bv = pi.base.bv;
317 Cursor const & cur = bv->cursor();
318 InsetMath const * inset = cur.inset().asInsetMath();
319 if (!cur.selection() || !inset || inset->nargs() == 0)
322 CursorSlice const s1 = cur.selBegin();
323 CursorSlice const s2 = cur.selEnd();
324 MathData const & c1 = inset->cell(s1.idx());
326 if (s1.idx() == s2.idx() && &c1 == this) {
327 // selection inside cell
328 Dimension const dim = bv->coordCache().getArrays().dim(&c1);
329 int const beg = c1.pos2x(bv, s1.pos());
330 int const end = c1.pos2x(bv, s2.pos());
331 pi.pain.fillRectangle(x + beg, y - dim.ascent(),
332 end - beg, dim.height(), Color_selection);
334 for (idx_type i = 0; i < inset->nargs(); ++i) {
335 MathData const & c = inset->cell(i);
336 if (&c == this && inset->idxBetween(i, s1.idx(), s2.idx())) {
337 // The whole cell is selected
338 Dimension const dim = bv->coordCache().getArrays().dim(&c);
339 pi.pain.fillRectangle(x, y - dim.ascent(),
340 dim.width(), dim.height(),
348 void MathData::draw(PainterInfo & pi, int const x, int const y) const
350 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
351 setXY(*pi.base.bv, x, y);
353 drawSelection(pi, x, y);
354 MathRow const & mrow = pi.base.bv->mathRow(this);
359 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
363 for (const_iterator it = begin(); it != end(); ++it) {
364 (*it)->metricsT(mi, d);
370 void MathData::drawT(TextPainter & pain, int x, int y) const
372 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
374 // FIXME: Abdel 16/10/2006
375 // This drawT() method is never used, this is dead code.
377 for (auto const & it : *this) {
378 it->drawT(pain, x, y);
385 int MathData::kerning(BufferView const * bv) const
387 return bv->mathRow(this).kerning(bv);
391 void MathData::updateBuffer(ParIterator const & it, UpdateType utype, bool const deleted)
394 for (size_t i = 0, n = size(); i != n; ++i) {
395 MathAtom & at = operator[](i);
396 at.nucleus()->updateBuffer(it, utype, deleted);
401 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
402 UpdateType utype, int nesting)
404 // If we are editing a macro, we cannot update it immediately,
405 // otherwise wrong undo steps will be recorded (bug 6208).
406 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
407 InsetMathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
408 docstring const edited_name = inmacro ? inmacro->name() : docstring();
410 // go over the array and look for macros
411 for (size_t i = 0; i < size(); ++i) {
412 InsetMathMacro * macroInset = operator[](i).nucleus()->asMacro();
413 if (!macroInset || macroInset->macroName().empty()
414 || macroInset->macroName()[0] == '^'
415 || macroInset->macroName()[0] == '_'
416 || (macroInset->name() == edited_name
417 && macroInset->displayMode() ==
418 InsetMathMacro::DISPLAY_UNFOLDED))
422 macroInset->updateMacro(mc);
423 size_t macroNumArgs = 0;
424 size_t macroOptionals = 0;
425 MacroData const * macro = macroInset->macro();
427 macroNumArgs = macro->numargs();
428 macroOptionals = macro->optionals();
431 // store old and compute new display mode
432 InsetMathMacro::DisplayMode newDisplayMode;
433 InsetMathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
434 newDisplayMode = macroInset->computeDisplayMode();
436 // arity changed or other reason to detach?
437 if (oldDisplayMode == InsetMathMacro::DISPLAY_NORMAL
438 && (macroInset->arity() != macroNumArgs
439 || macroInset->optionals() != macroOptionals
440 || newDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED))
441 detachMacroParameters(cur, i);
443 // the macro could have been copied while resizing this
444 macroInset = operator[](i).nucleus()->asMacro();
447 if (newDisplayMode != InsetMathMacro::DISPLAY_UNFOLDED
448 && oldDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED) {
449 // put cursor in front of macro
451 int macroSlice = cur->find(macroInset);
452 if (macroSlice != -1)
453 cur->cutOff(macroSlice - 1);
457 // update the display mode
458 size_t appetite = macroInset->appetite();
459 macroInset->setDisplayMode(newDisplayMode);
462 if (newDisplayMode == InsetMathMacro::DISPLAY_NORMAL
463 && (macroInset->arity() != macroNumArgs
464 || macroInset->optionals() != macroOptionals)) {
465 // is it a virgin macro which was never attached to parameters?
466 bool fromInitToNormalMode
467 = (oldDisplayMode == InsetMathMacro::DISPLAY_INIT
468 || oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT)
469 && newDisplayMode == InsetMathMacro::DISPLAY_NORMAL;
471 // if the macro was entered interactively (i.e. not by paste or during
472 // loading), it should not be greedy, but the cursor should
473 // automatically jump into the macro when behind
474 bool interactive = (oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT);
477 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
478 fromInitToNormalMode, interactive, appetite);
481 cur->updateInsets(&cur->bottom().inset());
484 // Give macro the chance to adapt to new situation.
485 // The macroInset could be invalid now because it was put into a script
486 // inset and therefore "deep" copied. So get it again from the MathData.
487 InsetMath * inset = operator[](i).nucleus();
488 if (inset->asScriptInset())
489 inset = inset->asScriptInset()->nuc()[0].nucleus();
490 LASSERT(inset->asMacro(), continue);
491 inset->asMacro()->updateRepresentation(cur, mc, utype, nesting + 1);
496 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
498 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
499 // We store this now, because the inset pointer will be invalidated in the scond loop below
500 size_t const optionals = macroInset->optionals();
502 // detach all arguments
503 vector<MathData> detachedArgs;
504 if (macroPos + 1 == size())
505 // strip arguments if we are at the MathData end
506 macroInset->detachArguments(detachedArgs, true);
508 macroInset->detachArguments(detachedArgs, false);
511 int curMacroSlice = -1;
513 curMacroSlice = cur->find(macroInset);
514 idx_type curMacroIdx = -1;
515 pos_type curMacroPos = -1;
516 vector<CursorSlice> argSlices;
517 if (curMacroSlice != -1) {
518 curMacroPos = (*cur)[curMacroSlice].pos();
519 curMacroIdx = (*cur)[curMacroSlice].idx();
520 cur->cutOff(curMacroSlice, argSlices);
524 // only [] after the last non-empty argument can be dropped later
525 size_t lastNonEmptyOptional = 0;
526 for (size_t l = 0; l < detachedArgs.size() && l < optionals; ++l) {
527 if (!detachedArgs[l].empty())
528 lastNonEmptyOptional = l;
531 // optional arguments to be put back?
532 pos_type p = macroPos + 1;
534 // We do not want to use macroInset below, the insert() call in
535 // the loop will invalidate it.
537 for (; j < detachedArgs.size() && j < optionals; ++j) {
538 // another non-empty parameter follows?
539 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
541 // then we can drop empty optional parameters
542 if (detachedArgs[j].empty() && canDropEmptyOptional) {
543 if (curMacroIdx == j)
544 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
548 // Otherwise we don't drop an empty optional, put it back normally
550 asArray(from_ascii("[]"), optarg);
551 MathData & arg = detachedArgs[j];
553 // look for "]", i.e. put a brace around?
554 InsetMathBrace * brace = 0;
555 for (size_t q = 0; q < arg.size(); ++q) {
556 if (arg[q]->getChar() == ']') {
558 brace = new InsetMathBrace(buffer_);
563 // put arg between []
565 brace->cell(0) = arg;
566 optarg.insert(1, MathAtom(brace));
568 optarg.insert(1, arg);
570 // insert it into the array
575 if (curMacroSlice == -1)
578 // cursor in optional argument of macro?
579 if (curMacroIdx == j) {
581 cur->append(0, curMacroPos);
582 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
584 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
585 cur->append(argSlices);
586 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
587 // cursor right of macro
588 (*cur)[curMacroSlice - 1].pos() += optarg.size();
591 // put them back into the MathData
592 for (; j < detachedArgs.size(); ++j, ++p) {
593 MathData const & arg = detachedArgs[j];
595 && !arg[0]->asScriptInset()
596 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
599 insert(p, MathAtom(new InsetMathBrace(arg)));
602 if (curMacroSlice == -1)
605 // cursor in j-th argument of macro?
606 if (curMacroIdx == j) {
607 if (operator[](p).nucleus()->asBraceInset()) {
608 (*cur)[curMacroSlice - 1].pos() = p;
609 cur->append(0, curMacroPos);
610 cur->append(argSlices);
612 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
613 cur->append(argSlices);
615 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
616 ++(*cur)[curMacroSlice - 1].pos();
620 cur->updateInsets(&cur->bottom().inset());
624 void MathData::attachMacroParameters(Cursor * cur,
625 const size_type macroPos, const size_type macroNumArgs,
626 const int macroOptionals, const bool fromInitToNormalMode,
627 const bool interactiveInit, const size_t appetite)
629 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
631 // start at atom behind the macro again, maybe with some new arguments
632 // from the detach phase above, to add them back into the macro inset
633 size_t p = macroPos + 1;
634 vector<MathData> detachedArgs;
635 MathAtom scriptToPutAround;
637 // find cursor slice again of this MathData
640 thisSlice = cur->find(*this);
643 thisPos = (*cur)[thisSlice].pos();
645 // find arguments behind the macro
646 if (!interactiveInit) {
647 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
648 scriptToPutAround, macroPos, thisPos, thisSlice);
650 collectParameters(cur, macroNumArgs, detachedArgs, p,
651 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
653 // attach arguments back to macro inset
654 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
656 // found tail script? E.g. \foo{a}b^x
657 if (scriptToPutAround.nucleus()) {
658 InsetMathScript * scriptInset =
659 scriptToPutAround.nucleus()->asScriptInset();
660 // In the math parser we remove empty braces in the base
661 // of a script inset, but we have to restore them here.
662 if (scriptInset->nuc().empty()) {
664 scriptInset->nuc().push_back(
665 MathAtom(new InsetMathBrace(ar)));
667 // put macro into a script inset
668 scriptInset->nuc()[0] = operator[](macroPos);
669 operator[](macroPos) = scriptToPutAround;
671 // go into the script inset nucleus
672 if (cur && thisPos == int(macroPos))
675 // get pointer to "deep" copied macro inset
676 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
677 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
680 // remove them from the MathData
681 erase(macroPos + 1, p);
683 // cursor outside this MathData?
687 // fix cursor if right of p
688 if (thisPos >= int(p))
689 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
691 // was the macro inset just inserted interactively and was now folded
692 // and the cursor is just behind?
693 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
695 && fromInitToNormalMode
696 && macroInset->arity() > 0
697 && thisSlice + 1 == int(cur->depth())) {
698 // then enter it if the cursor was just behind
699 (*cur)[thisSlice].pos() = macroPos;
700 cur->push_back(CursorSlice(*macroInset));
701 macroInset->idxFirst(*cur);
706 void MathData::collectOptionalParameters(Cursor * cur,
707 const size_type numOptionalParams, vector<MathData> & params,
708 size_t & pos, MathAtom & scriptToPutAround,
709 const pos_type macroPos, const int thisPos, const int thisSlice)
711 Buffer * buf = cur ? cur->buffer() : 0;
712 // insert optional arguments?
713 while (params.size() < numOptionalParams
715 && !scriptToPutAround.nucleus()) {
716 // is a [] block following which could be an optional parameter?
717 if (operator[](pos)->getChar() != '[')
720 // found possible optional argument, look for pairing "]"
722 size_t right = pos + 1;
723 for (; right < size(); ++right) {
724 MathAtom & cell = operator[](right);
726 if (cell->getChar() == '[')
728 else if (cell->getChar() == ']' && --count == 0)
732 // maybe "]" with a script around?
733 InsetMathScript * script = cell.nucleus()->asScriptInset();
736 if (script->nuc().size() != 1)
738 if (script->nuc()[0]->getChar() == ']') {
739 // script will be put around the macro later
740 scriptToPutAround = cell;
746 if (right >= size()) {
747 // no ] found, so it's not an optional argument
751 // add everything between [ and ] as optional argument
752 MathData optarg(buf, begin() + pos + 1, begin() + right);
756 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
758 params.push_back(optarg[0]->asBraceInset()->cell(0));
760 params.push_back(optarg);
762 // place cursor in optional argument of macro
763 // Note: The two expressions on the first line are equivalent
764 // (see caller), but making this explicit pleases coverity.
765 if (cur && thisSlice != -1
766 && thisPos >= int(pos) && thisPos <= int(right)) {
767 int paramPos = max(0, thisPos - int(pos) - 1);
768 vector<CursorSlice> x;
769 cur->cutOff(thisSlice, x);
770 (*cur)[thisSlice].pos() = macroPos;
772 paramPos = x[0].pos();
775 cur->append(0, paramPos);
781 // fill up empty optional parameters
782 while (params.size() < numOptionalParams)
783 params.push_back(MathData());
787 void MathData::collectParameters(Cursor * cur,
788 const size_type numParams, vector<MathData> & params,
789 size_t & pos, MathAtom & scriptToPutAround,
790 const pos_type macroPos, const int thisPos, const int thisSlice,
791 const size_t appetite)
793 size_t startSize = params.size();
795 // insert normal arguments
796 while (params.size() < numParams
797 && params.size() - startSize < appetite
799 && !scriptToPutAround.nucleus()) {
800 MathAtom & cell = operator[](pos);
803 vector<CursorSlice> argSlices;
805 // Note: The two expressions on the first line are equivalent
806 // (see caller), but making this explicit pleases coverity.
807 if (cur && thisSlice != -1
808 && thisPos == int(pos))
809 cur->cutOff(thisSlice, argSlices);
811 // which kind of parameter is it? In {}? With index x^n?
812 InsetMathBrace const * brace = cell->asBraceInset();
814 // found brace, convert into argument
815 params.push_back(brace->cell(0));
817 // cursor inside of the brace or just in front of?
818 if (thisPos == int(pos) && !argSlices.empty()) {
819 argPos = argSlices[0].pos();
820 argSlices.erase(argSlices.begin());
822 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
823 // last inset with scripts without braces
824 // -> they belong to the macro, not the argument
825 InsetMathScript * script = cell.nucleus()->asScriptInset();
826 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
827 // nucleus in brace? Unpack!
828 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
830 params.push_back(script->nuc());
832 // script will be put around below
833 scriptToPutAround = cell;
835 // this should only happen after loading, so make cursor handling simple
836 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
842 // the simplest case: plain inset
844 array.insert(0, cell);
845 params.push_back(array);
848 // put cursor in argument again
849 // Note: The first two expressions on the first line are
850 // equivalent (see caller), but making this explicit pleases
852 if (cur && thisSlice != -1 && thisPos == int(pos)) {
853 cur->append(params.size() - 1, argPos);
854 cur->append(argSlices);
855 (*cur)[thisSlice].pos() = macroPos;
863 int MathData::pos2x(BufferView const * bv, size_type pos) const
866 size_type target = min(pos, size());
867 CoordCache::Insets const & coords = bv->coordCache().getInsets();
868 for (size_type i = 0; i < target; ++i) {
869 const_iterator it = begin() + i;
870 //lyxerr << "char: " << (*it)->getChar()
871 // << "width: " << (*it)->width() << endl;
872 x += coords.dim((*it).nucleus()).wid;
878 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
880 const_iterator it = begin();
883 CoordCache::Insets const & coords = bv->coordCache().getInsets();
884 // find first position after targetx
885 for (; currx < targetx && it != end(); ++it) {
887 currx += coords.dim((*it).nucleus()).wid;
891 * If we are not at the beginning of the array, go to the left
892 * of the inset if one of the following two condition holds:
893 * - the current inset is editable (so that the cursor tip is
894 * deeper than us): in this case, we want all intermediate
895 * cursor slices to be before insets;
896 * - the mouse is closer to the left side of the inset than to
898 * See bug 1918 for details.
900 if (it != begin() && currx >= targetx
901 && ((*prev(it, 1))->asNestInset()
902 || abs(lastx - targetx) < abs(currx - targetx))) {
910 int MathData::dist(BufferView const & bv, int x, int y) const
912 return bv.coordCache().getArrays().squareDistance(this, x, y);
916 void MathData::setXY(BufferView & bv, int x, int y) const
918 //lyxerr << "setting position cache for MathData " << this << endl;
919 bv.coordCache().arrays().add(this, x, y);
923 Dimension const & MathData::dimension(BufferView const & bv) const
925 return bv.coordCache().getArrays().dim(this);
929 int MathData::xm(BufferView const & bv) const
931 Geometry const & g = bv.coordCache().getArrays().geometry(this);
933 return g.pos.x_ + g.dim.wid / 2;
937 int MathData::ym(BufferView const & bv) const
939 Geometry const & g = bv.coordCache().getArrays().geometry(this);
941 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
945 int MathData::xo(BufferView const & bv) const
947 return bv.coordCache().getArrays().x(this);
951 int MathData::yo(BufferView const & bv) const
953 return bv.coordCache().getArrays().y(this);
957 MathClass MathData::mathClass() const
959 MathClass res = MC_UNKNOWN;
960 for (MathAtom const & at : *this) {
961 MathClass mc = at->mathClass();
962 if (res == MC_UNKNOWN)
964 else if (mc != MC_UNKNOWN && res != mc)
967 return res == MC_UNKNOWN ? MC_ORD : res;
971 MathClass MathData::lastMathClass() const
973 MathClass res = MC_ORD;
974 for (MathAtom const & at : *this) {
975 MathClass mc = at->mathClass();
976 if (mc != MC_UNKNOWN)
983 ostream & operator<<(ostream & os, MathData const & ar)
985 odocstringstream oss;
986 NormalStream ns(oss);
988 return os << to_utf8(oss.str());
992 odocstream & operator<<(odocstream & os, MathData const & ar)