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 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 bool MathData::hasCaret(BufferView * bv) const
272 Cursor & cur = bv->cursor();
273 return cur.inMathed() && &cur.cell() == this;
277 void MathData::metrics(MetricsInfo & mi, Dimension & dim, bool tight) const
279 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
280 BufferView * bv = mi.base.bv;
281 int const Iascent = fm.dimension('I').ascent();
282 int xascent = fm.xHeight();
283 if (xascent >= Iascent)
284 xascent = (2 * Iascent) / 3;
286 mindes_ = (3 * xascent) / 4;
287 slevel_ = (4 * xascent) / 5;
288 sshift_ = xascent / 4;
290 MathRow mrow(mi, this);
291 bool has_caret = mrow.metrics(mi, dim);
292 mrow_cache_[bv] = mrow;
293 kerning_ = mrow.kerning(bv);
295 // Set a minimal ascent/descent for the cell
297 // FIXME: this is the minimal ascent seen empirically, check
298 // what the TeXbook says.
299 dim.asc = max(dim.asc, fm.xHeight());
301 dim.asc = max(dim.asc, fm.maxAscent());
302 dim.des = max(dim.des, fm.maxDescent());
305 // This is one of the the few points where the drawing font is known,
306 // so that we can set the caret vertical dimensions.
307 has_caret |= hasCaret(bv);
309 bv->setCaretAscentDescent(min(dim.asc, fm.maxAscent()),
310 min(dim.des, fm.maxDescent()));
312 // Cache the dimension.
313 bv->coordCache().arrays().add(this, dim);
317 void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
319 BufferView const * bv = pi.base.bv;
320 Cursor const & cur = bv->cursor();
321 InsetMath const * inset = cur.inset().asInsetMath();
322 if (!cur.selection() || !inset || inset->nargs() == 0)
325 CursorSlice const s1 = cur.selBegin();
326 CursorSlice const s2 = cur.selEnd();
327 MathData const & c1 = inset->cell(s1.idx());
329 if (s1.idx() == s2.idx() && &c1 == this) {
330 // selection indide cell
331 Dimension const dim = bv->coordCache().getArrays().dim(&c1);
332 int const beg = c1.pos2x(bv, s1.pos());
333 int const end = c1.pos2x(bv, s2.pos());
334 pi.pain.fillRectangle(x + beg, y - dim.ascent(),
335 end - beg, dim.height(), Color_selection);
337 for (idx_type i = 0; i < inset->nargs(); ++i) {
338 MathData const & c = inset->cell(i);
339 if (&c == this && inset->idxBetween(i, s1.idx(), s2.idx())) {
340 // The whole cell is selected
341 Dimension const dim = bv->coordCache().getArrays().dim(&c);
342 pi.pain.fillRectangle(x, y - dim.ascent(),
343 dim.width(), dim.height(),
351 void MathData::draw(PainterInfo & pi, int const x, int const y) const
353 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
354 setXY(*pi.base.bv, x, y);
356 drawSelection(pi, x, y);
357 MathRow const & mrow = mrow_cache_[pi.base.bv];
362 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
366 for (const_iterator it = begin(); it != end(); ++it) {
367 (*it)->metricsT(mi, d);
373 void MathData::drawT(TextPainter & pain, int x, int y) const
375 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
377 // FIXME: Abdel 16/10/2006
378 // This drawT() method is never used, this is dead code.
380 for (const_iterator it = begin(), et = end(); it != et; ++it) {
381 (*it)->drawT(pain, x, y);
382 //x += (*it)->width_;
388 void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
391 for (size_t i = 0, n = size(); i != n; ++i) {
392 MathAtom & at = operator[](i);
393 at.nucleus()->updateBuffer(it, utype);
398 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
399 UpdateType utype, int nesting)
401 // If we are editing a macro, we cannot update it immediately,
402 // otherwise wrong undo steps will be recorded (bug 6208).
403 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
404 InsetMathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
405 docstring const edited_name = inmacro ? inmacro->name() : docstring();
407 // go over the array and look for macros
408 for (size_t i = 0; i < size(); ++i) {
409 InsetMathMacro * macroInset = operator[](i).nucleus()->asMacro();
410 if (!macroInset || macroInset->macroName().empty()
411 || macroInset->macroName()[0] == '^'
412 || macroInset->macroName()[0] == '_'
413 || (macroInset->name() == edited_name
414 && macroInset->displayMode() ==
415 InsetMathMacro::DISPLAY_UNFOLDED))
419 macroInset->updateMacro(mc);
420 size_t macroNumArgs = 0;
421 size_t macroOptionals = 0;
422 MacroData const * macro = macroInset->macro();
424 macroNumArgs = macro->numargs();
425 macroOptionals = macro->optionals();
428 // store old and compute new display mode
429 InsetMathMacro::DisplayMode newDisplayMode;
430 InsetMathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
431 newDisplayMode = macroInset->computeDisplayMode();
433 // arity changed or other reason to detach?
434 if (oldDisplayMode == InsetMathMacro::DISPLAY_NORMAL
435 && (macroInset->arity() != macroNumArgs
436 || macroInset->optionals() != macroOptionals
437 || newDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED))
438 detachMacroParameters(cur, i);
440 // the macro could have been copied while resizing this
441 macroInset = operator[](i).nucleus()->asMacro();
444 if (newDisplayMode != InsetMathMacro::DISPLAY_UNFOLDED
445 && oldDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED) {
446 // put cursor in front of macro
448 int macroSlice = cur->find(macroInset);
449 if (macroSlice != -1)
450 cur->cutOff(macroSlice - 1);
454 // update the display mode
455 size_t appetite = macroInset->appetite();
456 macroInset->setDisplayMode(newDisplayMode);
459 if (newDisplayMode == InsetMathMacro::DISPLAY_NORMAL
460 && (macroInset->arity() != macroNumArgs
461 || macroInset->optionals() != macroOptionals)) {
462 // is it a virgin macro which was never attached to parameters?
463 bool fromInitToNormalMode
464 = (oldDisplayMode == InsetMathMacro::DISPLAY_INIT
465 || oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT)
466 && newDisplayMode == InsetMathMacro::DISPLAY_NORMAL;
468 // if the macro was entered interactively (i.e. not by paste or during
469 // loading), it should not be greedy, but the cursor should
470 // automatically jump into the macro when behind
471 bool interactive = (oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT);
474 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
475 fromInitToNormalMode, interactive, appetite);
478 cur->updateInsets(&cur->bottom().inset());
481 // Give macro the chance to adapt to new situation.
482 // The macroInset could be invalid now because it was put into a script
483 // inset and therefore "deep" copied. So get it again from the MathData.
484 InsetMath * inset = operator[](i).nucleus();
485 if (inset->asScriptInset())
486 inset = inset->asScriptInset()->nuc()[0].nucleus();
487 LASSERT(inset->asMacro(), continue);
488 inset->asMacro()->updateRepresentation(cur, mc, utype, nesting + 1);
493 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
495 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
496 // We store this now, because the inset pointer will be invalidated in the scond loop below
497 size_t const optionals = macroInset->optionals();
499 // detach all arguments
500 vector<MathData> detachedArgs;
501 if (macroPos + 1 == size())
502 // strip arguments if we are at the MathData end
503 macroInset->detachArguments(detachedArgs, true);
505 macroInset->detachArguments(detachedArgs, false);
508 int curMacroSlice = -1;
510 curMacroSlice = cur->find(macroInset);
511 idx_type curMacroIdx = -1;
512 pos_type curMacroPos = -1;
513 vector<CursorSlice> argSlices;
514 if (curMacroSlice != -1) {
515 curMacroPos = (*cur)[curMacroSlice].pos();
516 curMacroIdx = (*cur)[curMacroSlice].idx();
517 cur->cutOff(curMacroSlice, argSlices);
521 // only [] after the last non-empty argument can be dropped later
522 size_t lastNonEmptyOptional = 0;
523 for (size_t l = 0; l < detachedArgs.size() && l < optionals; ++l) {
524 if (!detachedArgs[l].empty())
525 lastNonEmptyOptional = l;
528 // optional arguments to be put back?
529 pos_type p = macroPos + 1;
531 // We do not want to use macroInset below, the insert() call in
532 // the loop will invalidate it.
534 for (; j < detachedArgs.size() && j < optionals; ++j) {
535 // another non-empty parameter follows?
536 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
538 // then we can drop empty optional parameters
539 if (detachedArgs[j].empty() && canDropEmptyOptional) {
540 if (curMacroIdx == j)
541 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
545 // Otherwise we don't drop an empty optional, put it back normally
547 asArray(from_ascii("[]"), optarg);
548 MathData & arg = detachedArgs[j];
550 // look for "]", i.e. put a brace around?
551 InsetMathBrace * brace = 0;
552 for (size_t q = 0; q < arg.size(); ++q) {
553 if (arg[q]->getChar() == ']') {
555 brace = new InsetMathBrace(buffer_);
560 // put arg between []
562 brace->cell(0) = arg;
563 optarg.insert(1, MathAtom(brace));
565 optarg.insert(1, arg);
567 // insert it into the array
572 if (curMacroSlice == -1)
575 // cursor in optional argument of macro?
576 if (curMacroIdx == j) {
578 cur->append(0, curMacroPos);
579 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
581 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
582 cur->append(argSlices);
583 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
584 // cursor right of macro
585 (*cur)[curMacroSlice - 1].pos() += optarg.size();
588 // put them back into the MathData
589 for (; j < detachedArgs.size(); ++j, ++p) {
590 MathData const & arg = detachedArgs[j];
592 && !arg[0]->asScriptInset()
593 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
596 insert(p, MathAtom(new InsetMathBrace(arg)));
599 if (curMacroSlice == -1)
602 // cursor in j-th argument of macro?
603 if (curMacroIdx == j) {
604 if (operator[](p).nucleus()->asBraceInset()) {
605 (*cur)[curMacroSlice - 1].pos() = p;
606 cur->append(0, curMacroPos);
607 cur->append(argSlices);
609 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
610 cur->append(argSlices);
612 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
613 ++(*cur)[curMacroSlice - 1].pos();
617 cur->updateInsets(&cur->bottom().inset());
621 void MathData::attachMacroParameters(Cursor * cur,
622 const size_type macroPos, const size_type macroNumArgs,
623 const int macroOptionals, const bool fromInitToNormalMode,
624 const bool interactiveInit, const size_t appetite)
626 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
628 // start at atom behind the macro again, maybe with some new arguments
629 // from the detach phase above, to add them back into the macro inset
630 size_t p = macroPos + 1;
631 vector<MathData> detachedArgs;
632 MathAtom scriptToPutAround;
634 // find cursor slice again of this MathData
637 thisSlice = cur->find(*this);
640 thisPos = (*cur)[thisSlice].pos();
642 // find arguments behind the macro
643 if (!interactiveInit) {
644 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
645 scriptToPutAround, macroPos, thisPos, thisSlice);
647 collectParameters(cur, macroNumArgs, detachedArgs, p,
648 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
650 // attach arguments back to macro inset
651 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
653 // found tail script? E.g. \foo{a}b^x
654 if (scriptToPutAround.nucleus()) {
655 InsetMathScript * scriptInset =
656 scriptToPutAround.nucleus()->asScriptInset();
657 // In the math parser we remove empty braces in the base
658 // of a script inset, but we have to restore them here.
659 if (scriptInset->nuc().empty()) {
661 scriptInset->nuc().push_back(
662 MathAtom(new InsetMathBrace(ar)));
664 // put macro into a script inset
665 scriptInset->nuc()[0] = operator[](macroPos);
666 operator[](macroPos) = scriptToPutAround;
668 // go into the script inset nucleus
669 if (cur && thisPos == int(macroPos))
672 // get pointer to "deep" copied macro inset
673 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
674 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
677 // remove them from the MathData
678 erase(macroPos + 1, p);
680 // cursor outside this MathData?
684 // fix cursor if right of p
685 if (thisPos >= int(p))
686 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
688 // was the macro inset just inserted interactively and was now folded
689 // and the cursor is just behind?
690 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
692 && fromInitToNormalMode
693 && macroInset->arity() > 0
694 && thisSlice + 1 == int(cur->depth())) {
695 // then enter it if the cursor was just behind
696 (*cur)[thisSlice].pos() = macroPos;
697 cur->push_back(CursorSlice(*macroInset));
698 macroInset->idxFirst(*cur);
703 void MathData::collectOptionalParameters(Cursor * cur,
704 const size_type numOptionalParams, vector<MathData> & params,
705 size_t & pos, MathAtom & scriptToPutAround,
706 const pos_type macroPos, const int thisPos, const int thisSlice)
708 Buffer * buf = cur ? cur->buffer() : 0;
709 // insert optional arguments?
710 while (params.size() < numOptionalParams
712 && !scriptToPutAround.nucleus()) {
713 // is a [] block following which could be an optional parameter?
714 if (operator[](pos)->getChar() != '[')
717 // found possible optional argument, look for pairing "]"
719 size_t right = pos + 1;
720 for (; right < size(); ++right) {
721 MathAtom & cell = operator[](right);
723 if (cell->getChar() == '[')
725 else if (cell->getChar() == ']' && --count == 0)
729 // maybe "]" with a script around?
730 InsetMathScript * script = cell.nucleus()->asScriptInset();
733 if (script->nuc().size() != 1)
735 if (script->nuc()[0]->getChar() == ']') {
736 // script will be put around the macro later
737 scriptToPutAround = cell;
743 if (right >= size()) {
744 // no ] found, so it's not an optional argument
748 // add everything between [ and ] as optional argument
749 MathData optarg(buf, begin() + pos + 1, begin() + right);
753 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
755 params.push_back(optarg[0]->asBraceInset()->cell(0));
757 params.push_back(optarg);
759 // place cursor in optional argument of macro
760 // Note: The two expressions on the first line are equivalent
761 // (see caller), but making this explicit pleases coverity.
762 if (cur && thisSlice != -1
763 && thisPos >= int(pos) && thisPos <= int(right)) {
764 int paramPos = max(0, thisPos - int(pos) - 1);
765 vector<CursorSlice> x;
766 cur->cutOff(thisSlice, x);
767 (*cur)[thisSlice].pos() = macroPos;
769 paramPos = x[0].pos();
772 cur->append(0, paramPos);
778 // fill up empty optional parameters
779 while (params.size() < numOptionalParams)
780 params.push_back(MathData());
784 void MathData::collectParameters(Cursor * cur,
785 const size_type numParams, vector<MathData> & params,
786 size_t & pos, MathAtom & scriptToPutAround,
787 const pos_type macroPos, const int thisPos, const int thisSlice,
788 const size_t appetite)
790 size_t startSize = params.size();
792 // insert normal arguments
793 while (params.size() < numParams
794 && params.size() - startSize < appetite
796 && !scriptToPutAround.nucleus()) {
797 MathAtom & cell = operator[](pos);
800 vector<CursorSlice> argSlices;
802 // Note: The two expressions on the first line are equivalent
803 // (see caller), but making this explicit pleases coverity.
804 if (cur && thisSlice != -1
805 && thisPos == int(pos))
806 cur->cutOff(thisSlice, argSlices);
808 // which kind of parameter is it? In {}? With index x^n?
809 InsetMathBrace const * brace = cell->asBraceInset();
811 // found brace, convert into argument
812 params.push_back(brace->cell(0));
814 // cursor inside of the brace or just in front of?
815 if (thisPos == int(pos) && !argSlices.empty()) {
816 argPos = argSlices[0].pos();
817 argSlices.erase(argSlices.begin());
819 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
820 // last inset with scripts without braces
821 // -> they belong to the macro, not the argument
822 InsetMathScript * script = cell.nucleus()->asScriptInset();
823 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
824 // nucleus in brace? Unpack!
825 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
827 params.push_back(script->nuc());
829 // script will be put around below
830 scriptToPutAround = cell;
832 // this should only happen after loading, so make cursor handling simple
833 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
839 // the simplest case: plain inset
841 array.insert(0, cell);
842 params.push_back(array);
845 // put cursor in argument again
846 // Note: The first two expressions on the first line are
847 // equivalent (see caller), but making this explicit pleases
849 if (cur && thisSlice != -1 && thisPos == int(pos)) {
850 cur->append(params.size() - 1, argPos);
851 cur->append(argSlices);
852 (*cur)[thisSlice].pos() = macroPos;
860 int MathData::pos2x(BufferView const * bv, size_type pos) const
863 size_type target = min(pos, size());
864 CoordCache::Insets const & coords = bv->coordCache().getInsets();
865 for (size_type i = 0; i < target; ++i) {
866 const_iterator it = begin() + i;
867 //lyxerr << "char: " << (*it)->getChar()
868 // << "width: " << (*it)->width() << endl;
869 x += coords.dim((*it).nucleus()).wid;
875 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
877 const_iterator it = begin();
880 CoordCache::Insets const & coords = bv->coordCache().getInsets();
881 // find first position after targetx
882 for (; currx < targetx && it != end(); ++it) {
884 currx += coords.dim((*it).nucleus()).wid;
888 * If we are not at the beginning of the array, go to the left
889 * of the inset if one of the following two condition holds:
890 * - the current inset is editable (so that the cursor tip is
891 * deeper than us): in this case, we want all intermediate
892 * cursor slices to be before insets;
893 * - the mouse is closer to the left side of the inset than to
895 * See bug 1918 for details.
897 if (it != begin() && currx >= targetx
898 && ((*prev(it, 1))->asNestInset()
899 || abs(lastx - targetx) < abs(currx - targetx))) {
907 int MathData::dist(BufferView const & bv, int x, int y) const
909 return bv.coordCache().getArrays().squareDistance(this, x, y);
913 void MathData::setXY(BufferView & bv, int x, int y) const
915 //lyxerr << "setting position cache for MathData " << this << endl;
916 bv.coordCache().arrays().add(this, x, y);
920 Dimension const & MathData::dimension(BufferView const & bv) const
922 return bv.coordCache().getArrays().dim(this);
926 int MathData::xm(BufferView const & bv) const
928 Geometry const & g = bv.coordCache().getArrays().geometry(this);
930 return g.pos.x_ + g.dim.wid / 2;
934 int MathData::ym(BufferView const & bv) const
936 Geometry const & g = bv.coordCache().getArrays().geometry(this);
938 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
942 int MathData::xo(BufferView const & bv) const
944 return bv.coordCache().getArrays().x(this);
948 int MathData::yo(BufferView const & bv) const
950 return bv.coordCache().getArrays().y(this);
954 MathClass MathData::mathClass() const
956 MathClass res = MC_UNKNOWN;
957 for (MathAtom const & at : *this) {
958 MathClass mc = at->mathClass();
959 if (res == MC_UNKNOWN)
961 else if (mc != MC_UNKNOWN && res != mc)
964 return res == MC_UNKNOWN ? MC_ORD : res;
968 ostream & operator<<(ostream & os, MathData const & ar)
970 odocstringstream oss;
971 NormalStream ns(oss);
973 return os << to_utf8(oss.str());
977 odocstream & operator<<(odocstream & os, MathData const & ar)