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 void MathData::metrics(MetricsInfo & mi, Dimension & dim, bool tight) const
264 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
265 BufferView * bv = mi.base.bv;
266 int const Iascent = fm.dimension('I').ascent();
267 int xascent = fm.dimension('x').ascent();
268 if (xascent >= Iascent)
269 xascent = (2 * Iascent) / 3;
271 mindes_ = (3 * xascent) / 4;
272 slevel_ = (4 * xascent) / 5;
273 sshift_ = xascent / 4;
275 MathRow mrow(mi, this);
276 mrow.metrics(mi, dim);
277 mrow_cache_[bv] = mrow;
278 kerning_ = mrow.kerning(bv);
280 // Set a minimal ascent/descent for the cell
282 // FIXME: this is the minimal ascent seen empirically, check
283 // what the TeXbook says.
284 dim.asc = max(dim.asc, fm.ascent('x'));
286 dim.asc = max(dim.asc, fm.maxAscent());
287 dim.des = max(dim.des, fm.maxDescent());
290 // This is one of the the few points where the drawing font is known,
291 // so that we can set the caret vertical dimensions.
292 Cursor & cur = bv->cursor();
293 if (cur.inMathed() && &cur.cell() == this)
294 bv->setCaretAscentDescent(min(dim.asc, fm.maxAscent()),
295 min(dim.des, fm.maxDescent()));
297 // Cache the dimension.
298 bv->coordCache().arrays().add(this, dim);
302 void MathData::drawSelection(PainterInfo & pi, int const x, int const y) const
304 BufferView const * bv = pi.base.bv;
305 Cursor const & cur = bv->cursor();
306 InsetMath const * inset = cur.inset().asInsetMath();
307 if (!cur.selection() || !inset || inset->nargs() == 0)
310 CursorSlice const s1 = cur.selBegin();
311 CursorSlice const s2 = cur.selEnd();
312 MathData const & c1 = inset->cell(s1.idx());
314 if (s1.idx() == s2.idx() && &c1 == this) {
315 // selection indide cell
316 Dimension const dim = bv->coordCache().getArrays().dim(&c1);
317 int const beg = c1.pos2x(bv, s1.pos());
318 int const end = c1.pos2x(bv, s2.pos());
319 pi.pain.fillRectangle(x + beg, y - dim.ascent(),
320 end - beg, dim.height(), Color_selection);
322 for (idx_type i = 0; i < inset->nargs(); ++i) {
323 MathData const & c = inset->cell(i);
324 if (&c == this && inset->idxBetween(i, s1.idx(), s2.idx())) {
325 // The whole cell is selected
326 Dimension const dim = bv->coordCache().getArrays().dim(&c);
327 pi.pain.fillRectangle(x, y - dim.ascent(),
328 dim.width(), dim.height(),
336 void MathData::draw(PainterInfo & pi, int const x, int const y) const
338 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
339 setXY(*pi.base.bv, x, y);
341 drawSelection(pi, x, y);
342 MathRow const & mrow = mrow_cache_[pi.base.bv];
347 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
351 for (const_iterator it = begin(); it != end(); ++it) {
352 (*it)->metricsT(mi, d);
358 void MathData::drawT(TextPainter & pain, int x, int y) const
360 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
362 // FIXME: Abdel 16/10/2006
363 // This drawT() method is never used, this is dead code.
365 for (const_iterator it = begin(), et = end(); it != et; ++it) {
366 (*it)->drawT(pain, x, y);
367 //x += (*it)->width_;
373 void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
376 for (size_t i = 0, n = size(); i != n; ++i) {
377 MathAtom & at = operator[](i);
378 at.nucleus()->updateBuffer(it, utype);
383 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
384 UpdateType utype, int nesting)
386 // If we are editing a macro, we cannot update it immediately,
387 // otherwise wrong undo steps will be recorded (bug 6208).
388 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
389 InsetMathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
390 docstring const edited_name = inmacro ? inmacro->name() : docstring();
392 // go over the array and look for macros
393 for (size_t i = 0; i < size(); ++i) {
394 InsetMathMacro * macroInset = operator[](i).nucleus()->asMacro();
395 if (!macroInset || macroInset->macroName().empty()
396 || macroInset->macroName()[0] == '^'
397 || macroInset->macroName()[0] == '_'
398 || (macroInset->name() == edited_name
399 && macroInset->displayMode() ==
400 InsetMathMacro::DISPLAY_UNFOLDED))
404 macroInset->updateMacro(mc);
405 size_t macroNumArgs = 0;
406 size_t macroOptionals = 0;
407 MacroData const * macro = macroInset->macro();
409 macroNumArgs = macro->numargs();
410 macroOptionals = macro->optionals();
413 // store old and compute new display mode
414 InsetMathMacro::DisplayMode newDisplayMode;
415 InsetMathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
416 newDisplayMode = macroInset->computeDisplayMode();
418 // arity changed or other reason to detach?
419 if (oldDisplayMode == InsetMathMacro::DISPLAY_NORMAL
420 && (macroInset->arity() != macroNumArgs
421 || macroInset->optionals() != macroOptionals
422 || newDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED))
423 detachMacroParameters(cur, i);
425 // the macro could have been copied while resizing this
426 macroInset = operator[](i).nucleus()->asMacro();
429 if (newDisplayMode != InsetMathMacro::DISPLAY_UNFOLDED
430 && oldDisplayMode == InsetMathMacro::DISPLAY_UNFOLDED) {
431 // put cursor in front of macro
433 int macroSlice = cur->find(macroInset);
434 if (macroSlice != -1)
435 cur->cutOff(macroSlice - 1);
439 // update the display mode
440 size_t appetite = macroInset->appetite();
441 macroInset->setDisplayMode(newDisplayMode);
444 if (newDisplayMode == InsetMathMacro::DISPLAY_NORMAL
445 && (macroInset->arity() != macroNumArgs
446 || macroInset->optionals() != macroOptionals)) {
447 // is it a virgin macro which was never attached to parameters?
448 bool fromInitToNormalMode
449 = (oldDisplayMode == InsetMathMacro::DISPLAY_INIT
450 || oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT)
451 && newDisplayMode == InsetMathMacro::DISPLAY_NORMAL;
453 // if the macro was entered interactively (i.e. not by paste or during
454 // loading), it should not be greedy, but the cursor should
455 // automatically jump into the macro when behind
456 bool interactive = (oldDisplayMode == InsetMathMacro::DISPLAY_INTERACTIVE_INIT);
459 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
460 fromInitToNormalMode, interactive, appetite);
463 cur->updateInsets(&cur->bottom().inset());
466 // Give macro the chance to adapt to new situation.
467 // The macroInset could be invalid now because it was put into a script
468 // inset and therefore "deep" copied. So get it again from the MathData.
469 InsetMath * inset = operator[](i).nucleus();
470 if (inset->asScriptInset())
471 inset = inset->asScriptInset()->nuc()[0].nucleus();
472 LASSERT(inset->asMacro(), continue);
473 inset->asMacro()->updateRepresentation(cur, mc, utype, nesting + 1);
478 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
480 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
481 // We store this now, because the inset pointer will be invalidated in the scond loop below
482 size_t const optionals = macroInset->optionals();
484 // detach all arguments
485 vector<MathData> detachedArgs;
486 if (macroPos + 1 == size())
487 // strip arguments if we are at the MathData end
488 macroInset->detachArguments(detachedArgs, true);
490 macroInset->detachArguments(detachedArgs, false);
493 int curMacroSlice = -1;
495 curMacroSlice = cur->find(macroInset);
496 idx_type curMacroIdx = -1;
497 pos_type curMacroPos = -1;
498 vector<CursorSlice> argSlices;
499 if (curMacroSlice != -1) {
500 curMacroPos = (*cur)[curMacroSlice].pos();
501 curMacroIdx = (*cur)[curMacroSlice].idx();
502 cur->cutOff(curMacroSlice, argSlices);
506 // only [] after the last non-empty argument can be dropped later
507 size_t lastNonEmptyOptional = 0;
508 for (size_t l = 0; l < detachedArgs.size() && l < optionals; ++l) {
509 if (!detachedArgs[l].empty())
510 lastNonEmptyOptional = l;
513 // optional arguments to be put back?
514 pos_type p = macroPos + 1;
516 // We do not want to use macroInset below, the insert() call in
517 // the loop will invalidate it.
519 for (; j < detachedArgs.size() && j < optionals; ++j) {
520 // another non-empty parameter follows?
521 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
523 // then we can drop empty optional parameters
524 if (detachedArgs[j].empty() && canDropEmptyOptional) {
525 if (curMacroIdx == j)
526 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
530 // Otherwise we don't drop an empty optional, put it back normally
532 asArray(from_ascii("[]"), optarg);
533 MathData & arg = detachedArgs[j];
535 // look for "]", i.e. put a brace around?
536 InsetMathBrace * brace = 0;
537 for (size_t q = 0; q < arg.size(); ++q) {
538 if (arg[q]->getChar() == ']') {
540 brace = new InsetMathBrace(buffer_);
545 // put arg between []
547 brace->cell(0) = arg;
548 optarg.insert(1, MathAtom(brace));
550 optarg.insert(1, arg);
552 // insert it into the array
557 if (curMacroSlice == -1)
560 // cursor in optional argument of macro?
561 if (curMacroIdx == j) {
563 cur->append(0, curMacroPos);
564 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
566 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
567 cur->append(argSlices);
568 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
569 // cursor right of macro
570 (*cur)[curMacroSlice - 1].pos() += optarg.size();
573 // put them back into the MathData
574 for (; j < detachedArgs.size(); ++j, ++p) {
575 MathData const & arg = detachedArgs[j];
577 && !arg[0]->asScriptInset()
578 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
581 insert(p, MathAtom(new InsetMathBrace(arg)));
584 if (curMacroSlice == -1)
587 // cursor in j-th argument of macro?
588 if (curMacroIdx == j) {
589 if (operator[](p).nucleus()->asBraceInset()) {
590 (*cur)[curMacroSlice - 1].pos() = p;
591 cur->append(0, curMacroPos);
592 cur->append(argSlices);
594 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
595 cur->append(argSlices);
597 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
598 ++(*cur)[curMacroSlice - 1].pos();
602 cur->updateInsets(&cur->bottom().inset());
606 void MathData::attachMacroParameters(Cursor * cur,
607 const size_type macroPos, const size_type macroNumArgs,
608 const int macroOptionals, const bool fromInitToNormalMode,
609 const bool interactiveInit, const size_t appetite)
611 InsetMathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
613 // start at atom behind the macro again, maybe with some new arguments
614 // from the detach phase above, to add them back into the macro inset
615 size_t p = macroPos + 1;
616 vector<MathData> detachedArgs;
617 MathAtom scriptToPutAround;
619 // find cursor slice again of this MathData
622 thisSlice = cur->find(*this);
625 thisPos = (*cur)[thisSlice].pos();
627 // find arguments behind the macro
628 if (!interactiveInit) {
629 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
630 scriptToPutAround, macroPos, thisPos, thisSlice);
632 collectParameters(cur, macroNumArgs, detachedArgs, p,
633 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
635 // attach arguments back to macro inset
636 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
638 // found tail script? E.g. \foo{a}b^x
639 if (scriptToPutAround.nucleus()) {
640 InsetMathScript * scriptInset =
641 scriptToPutAround.nucleus()->asScriptInset();
642 // In the math parser we remove empty braces in the base
643 // of a script inset, but we have to restore them here.
644 if (scriptInset->nuc().empty()) {
646 scriptInset->nuc().push_back(
647 MathAtom(new InsetMathBrace(ar)));
649 // put macro into a script inset
650 scriptInset->nuc()[0] = operator[](macroPos);
651 operator[](macroPos) = scriptToPutAround;
653 // go into the script inset nucleus
654 if (cur && thisPos == int(macroPos))
657 // get pointer to "deep" copied macro inset
658 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
659 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
662 // remove them from the MathData
663 erase(macroPos + 1, p);
665 // cursor outside this MathData?
669 // fix cursor if right of p
670 if (thisPos >= int(p))
671 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
673 // was the macro inset just inserted interactively and was now folded
674 // and the cursor is just behind?
675 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
677 && fromInitToNormalMode
678 && macroInset->arity() > 0
679 && thisSlice + 1 == int(cur->depth())) {
680 // then enter it if the cursor was just behind
681 (*cur)[thisSlice].pos() = macroPos;
682 cur->push_back(CursorSlice(*macroInset));
683 macroInset->idxFirst(*cur);
688 void MathData::collectOptionalParameters(Cursor * cur,
689 const size_type numOptionalParams, vector<MathData> & params,
690 size_t & pos, MathAtom & scriptToPutAround,
691 const pos_type macroPos, const int thisPos, const int thisSlice)
693 Buffer * buf = cur ? cur->buffer() : 0;
694 // insert optional arguments?
695 while (params.size() < numOptionalParams
697 && !scriptToPutAround.nucleus()) {
698 // is a [] block following which could be an optional parameter?
699 if (operator[](pos)->getChar() != '[')
702 // found possible optional argument, look for pairing "]"
704 size_t right = pos + 1;
705 for (; right < size(); ++right) {
706 MathAtom & cell = operator[](right);
708 if (cell->getChar() == '[')
710 else if (cell->getChar() == ']' && --count == 0)
714 // maybe "]" with a script around?
715 InsetMathScript * script = cell.nucleus()->asScriptInset();
718 if (script->nuc().size() != 1)
720 if (script->nuc()[0]->getChar() == ']') {
721 // script will be put around the macro later
722 scriptToPutAround = cell;
728 if (right >= size()) {
729 // no ] found, so it's not an optional argument
733 // add everything between [ and ] as optional argument
734 MathData optarg(buf, begin() + pos + 1, begin() + right);
738 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
740 params.push_back(optarg[0]->asBraceInset()->cell(0));
742 params.push_back(optarg);
744 // place cursor in optional argument of macro
745 // Note: The two expressions on the first line are equivalent
746 // (see caller), but making this explicit pleases coverity.
747 if (cur && thisSlice != -1
748 && thisPos >= int(pos) && thisPos <= int(right)) {
749 int paramPos = max(0, thisPos - int(pos) - 1);
750 vector<CursorSlice> x;
751 cur->cutOff(thisSlice, x);
752 (*cur)[thisSlice].pos() = macroPos;
754 paramPos = x[0].pos();
757 cur->append(0, paramPos);
763 // fill up empty optional parameters
764 while (params.size() < numOptionalParams)
765 params.push_back(MathData());
769 void MathData::collectParameters(Cursor * cur,
770 const size_type numParams, vector<MathData> & params,
771 size_t & pos, MathAtom & scriptToPutAround,
772 const pos_type macroPos, const int thisPos, const int thisSlice,
773 const size_t appetite)
775 size_t startSize = params.size();
777 // insert normal arguments
778 while (params.size() < numParams
779 && params.size() - startSize < appetite
781 && !scriptToPutAround.nucleus()) {
782 MathAtom & cell = operator[](pos);
785 vector<CursorSlice> argSlices;
787 // Note: The two expressions on the first line are equivalent
788 // (see caller), but making this explicit pleases coverity.
789 if (cur && thisSlice != -1
790 && thisPos == int(pos))
791 cur->cutOff(thisSlice, argSlices);
793 // which kind of parameter is it? In {}? With index x^n?
794 InsetMathBrace const * brace = cell->asBraceInset();
796 // found brace, convert into argument
797 params.push_back(brace->cell(0));
799 // cursor inside of the brace or just in front of?
800 if (thisPos == int(pos) && !argSlices.empty()) {
801 argPos = argSlices[0].pos();
802 argSlices.erase(argSlices.begin());
804 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
805 // last inset with scripts without braces
806 // -> they belong to the macro, not the argument
807 InsetMathScript * script = cell.nucleus()->asScriptInset();
808 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
809 // nucleus in brace? Unpack!
810 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
812 params.push_back(script->nuc());
814 // script will be put around below
815 scriptToPutAround = cell;
817 // this should only happen after loading, so make cursor handling simple
818 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
824 // the simplest case: plain inset
826 array.insert(0, cell);
827 params.push_back(array);
830 // put cursor in argument again
831 // Note: The first two expressions on the first line are
832 // equivalent (see caller), but making this explicit pleases
834 if (cur && thisSlice != -1 && thisPos == int(pos)) {
835 cur->append(params.size() - 1, argPos);
836 cur->append(argSlices);
837 (*cur)[thisSlice].pos() = macroPos;
845 int MathData::pos2x(BufferView const * bv, size_type pos) const
848 size_type target = min(pos, size());
849 CoordCache::Insets const & coords = bv->coordCache().getInsets();
850 for (size_type i = 0; i < target; ++i) {
851 const_iterator it = begin() + i;
852 //lyxerr << "char: " << (*it)->getChar()
853 // << "width: " << (*it)->width() << endl;
854 x += coords.dim((*it).nucleus()).wid;
860 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
862 const_iterator it = begin();
865 CoordCache::Insets const & coords = bv->coordCache().getInsets();
866 // find first position after targetx
867 for (; currx < targetx && it != end(); ++it) {
869 currx += coords.dim((*it).nucleus()).wid;
873 * If we are not at the beginning of the array, go to the left
874 * of the inset if one of the following two condition holds:
875 * - the current inset is editable (so that the cursor tip is
876 * deeper than us): in this case, we want all intermediate
877 * cursor slices to be before insets;
878 * - the mouse is closer to the left side of the inset than to
880 * See bug 1918 for details.
882 if (it != begin() && currx >= targetx
883 && ((*prev(it, 1))->asNestInset()
884 || abs(lastx - targetx) < abs(currx - targetx))) {
892 int MathData::dist(BufferView const & bv, int x, int y) const
894 return bv.coordCache().getArrays().squareDistance(this, x, y);
898 void MathData::setXY(BufferView & bv, int x, int y) const
900 //lyxerr << "setting position cache for MathData " << this << endl;
901 bv.coordCache().arrays().add(this, x, y);
905 Dimension const & MathData::dimension(BufferView const & bv) const
907 return bv.coordCache().getArrays().dim(this);
911 int MathData::xm(BufferView const & bv) const
913 Geometry const & g = bv.coordCache().getArrays().geometry(this);
915 return g.pos.x_ + g.dim.wid / 2;
919 int MathData::ym(BufferView const & bv) const
921 Geometry const & g = bv.coordCache().getArrays().geometry(this);
923 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
927 int MathData::xo(BufferView const & bv) const
929 return bv.coordCache().getArrays().x(this);
933 int MathData::yo(BufferView const & bv) const
935 return bv.coordCache().getArrays().y(this);
939 MathClass MathData::mathClass() const
941 MathClass res = MC_UNKNOWN;
942 for (MathAtom const & at : *this) {
943 MathClass mc = at->mathClass();
944 if (res == MC_UNKNOWN)
946 else if (mc != MC_UNKNOWN && res != mc)
949 return res == MC_UNKNOWN ? MC_ORD : res;
953 ostream & operator<<(ostream & os, MathData const & ar)
955 odocstringstream oss;
956 NormalStream ns(oss);
958 return os << to_utf8(oss.str());
962 odocstream & operator<<(odocstream & os, MathData const & ar)