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 "MathMacro.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 "support/debug.h"
34 #include "support/docstream.h"
36 #include "frontends/FontMetrics.h"
37 #include "frontends/Painter.h"
39 #include "support/lassert.h"
40 #include <boost/next_prior.hpp>
49 MathData::MathData(Buffer * buf, const_iterator from, const_iterator to)
50 : base_type(from, to), buffer_(buf)
54 MathAtom & MathData::operator[](pos_type pos)
56 LASSERT(pos < size(), /**/);
57 return base_type::operator[](pos);
61 MathAtom const & MathData::operator[](pos_type pos) const
63 LASSERT(pos < size(), /**/);
64 return base_type::operator[](pos);
68 void MathData::insert(size_type pos, MathAtom const & t)
70 base_type::insert(begin() + pos, t);
74 void MathData::insert(size_type pos, MathData const & ar)
76 LASSERT(pos <= size(), /**/);
77 base_type::insert(begin() + pos, ar.begin(), ar.end());
81 void MathData::append(MathData const & ar)
87 void MathData::erase(size_type pos)
94 void MathData::erase(iterator pos1, iterator pos2)
96 base_type::erase(pos1, pos2);
100 void MathData::erase(iterator pos)
102 base_type::erase(pos);
106 void MathData::erase(size_type pos1, size_type pos2)
108 base_type::erase(begin() + pos1, begin() + pos2);
112 void MathData::dump2() const
116 for (const_iterator it = begin(); it != end(); ++it)
118 lyxerr << to_utf8(os.str());
122 void MathData::dump() const
126 for (const_iterator it = begin(); it != end(); ++it)
127 ns << '<' << *it << '>';
128 lyxerr << to_utf8(os.str());
132 void MathData::validate(LaTeXFeatures & features) const
134 for (const_iterator it = begin(); it != end(); ++it)
135 (*it)->validate(features);
139 bool MathData::match(MathData const & ar) const
141 return size() == ar.size() && matchpart(ar, 0);
145 bool MathData::matchpart(MathData const & ar, pos_type pos) const
147 if (size() < ar.size() + pos)
149 const_iterator it = begin() + pos;
150 for (const_iterator jt = ar.begin(); jt != ar.end(); ++jt, ++it)
151 if (asString(*it) != asString(*jt))
157 void MathData::replace(ReplaceData & rep)
159 for (size_type i = 0; i < size(); ++i) {
160 if (find1(rep.from, i)) {
162 lyxerr << "match found!" << endl;
163 erase(i, i + rep.from.size());
168 // FIXME: temporarily disabled
169 // for (const_iterator it = begin(); it != end(); ++it)
170 // it->nucleus()->replace(rep);
174 bool MathData::find1(MathData const & ar, size_type pos) const
176 lyxerr << "finding '" << ar << "' in '" << *this << "'" << endl;
177 for (size_type i = 0, n = ar.size(); i < n; ++i)
178 if (asString(operator[](pos + i)) != asString(ar[i]))
184 MathData::size_type MathData::find(MathData const & ar) const
186 for (int i = 0, last = size() - ar.size(); i < last; ++i)
193 MathData::size_type MathData::find_last(MathData const & ar) const
195 for (int i = size() - ar.size(); i >= 0; --i)
202 bool MathData::contains(MathData const & ar) const
204 if (find(ar) != size())
206 for (const_iterator it = begin(); it != end(); ++it)
207 if ((*it)->contains(ar))
213 void MathData::touch() const
220 bool isInside(DocIterator const & it, MathData const & ar,
221 pos_type p1, pos_type p2)
223 for (size_t i = 0; i != it.depth(); ++i) {
224 CursorSlice const & sl = it[i];
225 if (sl.inset().inMathed() && &sl.cell() == &ar)
226 return p1 <= sl.pos() && sl.pos() < p2;
235 void MathData::metrics(MetricsInfo & mi, Dimension & dim) const
237 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
238 dim = fm.dimension('I');
239 int xascent = fm.dimension('x').ascent();
240 if (xascent >= dim.asc)
241 xascent = (2 * dim.asc) / 3;
243 mindes_ = (3 * xascent) / 4;
244 slevel_ = (4 * xascent) / 5;
245 sshift_ = xascent / 4;
249 // Cache the dimension.
250 mi.base.bv->coordCache().arrays().add(this, dim);
254 Cursor & cur = mi.base.bv->cursor();
255 const_cast<MathData*>(this)->updateMacros(&cur, mi.macrocontext, InternalUpdate);
257 DocIterator const & inlineCompletionPos = mi.base.bv->inlineCompletionPos();
258 MathData const * inlineCompletionData = 0;
259 if (inlineCompletionPos.inMathed())
260 inlineCompletionData = &inlineCompletionPos.cell();
265 CoordCacheBase<Inset> & coords = mi.base.bv->coordCache().insets();
266 for (pos_type i = 0, n = size(); i != n; ++i) {
267 MathAtom const & at = operator[](i);
269 coords.add(at.nucleus(), d);
272 kerning_ = at->kerning(mi.base.bv);
274 // HACK to draw completion suggestion inline
275 if (inlineCompletionData != this
276 || size_t(inlineCompletionPos.pos()) != i + 1)
279 docstring const & completion = mi.base.bv->inlineCompletion();
280 if (completion.length() == 0)
283 FontInfo font = mi.base.font;
284 augmentFont(font, from_ascii("mathnormal"));
285 dim.wid += mathed_string_width(font, completion);
287 // Cache the dimension.
288 mi.base.bv->coordCache().arrays().add(this, dim);
292 void MathData::draw(PainterInfo & pi, int x, int y) const
294 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
295 BufferView & bv = *pi.base.bv;
298 Dimension const & dim = bv.coordCache().getArrays().dim(this);
301 pi.pain.rectangle(x, y - dim.ascent(), dim.width(), dim.height(), Color_mathline);
305 // don't draw outside the workarea
306 if (y + dim.descent() <= 0
307 || y - dim.ascent() >= bv.workHeight()
308 || x + dim.width() <= 0
309 || x >= bv. workWidth())
312 DocIterator const & inlineCompletionPos = bv.inlineCompletionPos();
313 MathData const * inlineCompletionData = 0;
314 if (inlineCompletionPos.inMathed())
315 inlineCompletionData = &inlineCompletionPos.cell();
317 CoordCacheBase<Inset> & coords = pi.base.bv->coordCache().insets();
318 for (size_t i = 0, n = size(); i != n; ++i) {
319 MathAtom const & at = operator[](i);
320 coords.add(at.nucleus(), x, y);
321 at->drawSelection(pi, x, y);
323 x += coords.dim(at.nucleus()).wid;
325 // Is the inline completion here?
326 if (inlineCompletionData != this
327 || size_t(inlineCompletionPos.pos()) != i + 1)
329 docstring const & completion = bv.inlineCompletion();
330 if (completion.length() == 0)
332 FontInfo f = pi.base.font;
333 augmentFont(f, from_ascii("mathnormal"));
335 // draw the unique and the non-unique completion part
336 // Note: this is not time-critical as it is
337 // only done once per screen.
338 size_t uniqueTo = bv.inlineCompletionUniqueChars();
339 docstring s1 = completion.substr(0, uniqueTo);
340 docstring s2 = completion.substr(uniqueTo);
343 f.setColor(Color_inlinecompletion);
344 pi.pain.text(x, y, s1, f);
345 x += mathed_string_width(f, s1);
349 f.setColor(Color_nonunique_inlinecompletion);
350 pi.pain.text(x, y, s2, f);
351 x += mathed_string_width(f, s2);
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 void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
386 for (size_t i = 0, n = size(); i != n; ++i) {
387 MathAtom & at = operator[](i);
388 at.nucleus()->updateBuffer(it, utype);
393 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
396 // If we are editing a macro, we cannot update it immediately,
397 // otherwise wrong undo steps will be recorded (bug 6208).
398 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
399 MathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
400 docstring const edited_name = inmacro ? inmacro->name() : docstring();
402 // go over the array and look for macros
403 for (size_t i = 0; i < size(); ++i) {
404 MathMacro * macroInset = operator[](i).nucleus()->asMacro();
405 if (!macroInset || macroInset->name_.empty()
406 || macroInset->name_[0] == '^'
407 || macroInset->name_[0] == '_'
408 || (macroInset->name() == edited_name
409 && macroInset->displayMode() ==
410 MathMacro::DISPLAY_UNFOLDED))
414 macroInset->updateMacro(mc);
415 size_t macroNumArgs = 0;
416 size_t macroOptionals = 0;
417 MacroData const * macro = macroInset->macro();
419 macroNumArgs = macro->numargs();
420 macroOptionals = macro->optionals();
423 // store old and compute new display mode
424 MathMacro::DisplayMode newDisplayMode;
425 MathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
426 newDisplayMode = macroInset->computeDisplayMode();
428 // arity changed or other reason to detach?
429 if (oldDisplayMode == MathMacro::DISPLAY_NORMAL
430 && (macroInset->arity() != macroNumArgs
431 || macroInset->optionals() != macroOptionals
432 || newDisplayMode == MathMacro::DISPLAY_UNFOLDED)) {
434 detachMacroParameters(cur, i);
435 // FIXME: proper anchor handling, this removes the selection
437 cur->clearSelection();
440 // the macro could have been copied while resizing this
441 macroInset = operator[](i).nucleus()->asMacro();
444 if (newDisplayMode != MathMacro::DISPLAY_UNFOLDED
445 && oldDisplayMode == MathMacro::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 == MathMacro::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 == MathMacro::DISPLAY_INIT
465 || oldDisplayMode == MathMacro::DISPLAY_INTERACTIVE_INIT)
466 && newDisplayMode == MathMacro::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 == MathMacro::DISPLAY_INTERACTIVE_INIT);
474 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
475 fromInitToNormalMode, interactive, appetite);
478 // FIXME: proper anchor handling, this removes the selection
479 cur->updateInsets(&cur->bottom().inset());
480 cur->clearSelection();
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(), /**/);
491 inset->asMacro()->updateRepresentation(cur, mc, utype);
496 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
498 MathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
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 < macroInset->optionals(); ++l) {
525 if (!detachedArgs[l].empty())
526 lastNonEmptyOptional = l;
529 // optional arguments to be put back?
530 pos_type p = macroPos + 1;
532 for (; j < detachedArgs.size() && j < macroInset->optionals(); ++j) {
533 // another non-empty parameter follows?
534 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
536 // then we can drop empty optional parameters
537 if (detachedArgs[j].empty() && canDropEmptyOptional) {
538 if (curMacroIdx == j)
539 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
543 // Otherwise we don't drop an empty optional, put it back normally
545 asArray(from_ascii("[]"), optarg);
546 MathData & arg = detachedArgs[j];
548 // look for "]", i.e. put a brace around?
549 InsetMathBrace * brace = 0;
550 for (size_t q = 0; q < arg.size(); ++q) {
551 if (arg[q]->getChar() == ']') {
553 brace = new InsetMathBrace(buffer_);
558 // put arg between []
560 brace->cell(0) = arg;
561 optarg.insert(1, MathAtom(brace));
563 optarg.insert(1, arg);
565 // insert it into the array
570 if (curMacroSlice == -1)
573 // cursor in optional argument of macro?
574 if (curMacroIdx == j) {
576 cur->append(0, curMacroPos);
577 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
579 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
580 cur->append(argSlices);
581 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
582 // cursor right of macro
583 (*cur)[curMacroSlice - 1].pos() += optarg.size();
586 // put them back into the MathData
587 for (; j < detachedArgs.size(); ++j, ++p) {
588 MathData const & arg = detachedArgs[j];
590 && !arg[0]->asScriptInset()
591 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
594 insert(p, MathAtom(new InsetMathBrace(arg)));
597 if (curMacroSlice == -1)
600 // cursor in j-th argument of macro?
601 if (curMacroIdx == j) {
602 if (operator[](p).nucleus()->asBraceInset()) {
603 (*cur)[curMacroSlice - 1].pos() = p;
604 cur->append(0, curMacroPos);
605 cur->append(argSlices);
607 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
608 cur->append(argSlices);
610 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
611 ++(*cur)[curMacroSlice - 1].pos();
615 cur->updateInsets(&cur->bottom().inset());
619 void MathData::attachMacroParameters(Cursor * cur,
620 const size_type macroPos, const size_type macroNumArgs,
621 const int macroOptionals, const bool fromInitToNormalMode,
622 const bool interactiveInit, const size_t appetite)
624 MathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
626 // start at atom behind the macro again, maybe with some new arguments
627 // from the detach phase above, to add them back into the macro inset
628 size_t p = macroPos + 1;
629 vector<MathData> detachedArgs;
630 MathAtom scriptToPutAround;
632 // find cursor slice again of this MathData
635 thisSlice = cur->find(*this);
638 thisPos = (*cur)[thisSlice].pos();
640 // find arguments behind the macro
641 if (!interactiveInit) {
642 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
643 scriptToPutAround, macroPos, thisPos, thisSlice);
645 collectParameters(cur, macroNumArgs, detachedArgs, p,
646 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
648 // attach arguments back to macro inset
649 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
651 // found tail script? E.g. \foo{a}b^x
652 if (scriptToPutAround.nucleus()) {
653 InsetMathScript * scriptInset =
654 scriptToPutAround.nucleus()->asScriptInset();
655 // In the math parser we remove empty braces in the base
656 // of a script inset, but we have to restore them here.
657 if (scriptInset->nuc().empty()) {
659 scriptInset->nuc().push_back(
660 MathAtom(new InsetMathBrace(ar)));
662 // put macro into a script inset
663 scriptInset->nuc()[0] = operator[](macroPos);
664 operator[](macroPos) = scriptToPutAround;
666 // go into the script inset nucleus
667 if (cur && thisPos == int(macroPos))
670 // get pointer to "deep" copied macro inset
671 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
672 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
675 // remove them from the MathData
676 erase(begin() + macroPos + 1, begin() + p);
678 // cursor outside this MathData?
682 // fix cursor if right of p
683 if (thisPos >= int(p))
684 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
686 // was the macro inset just inserted interactively and was now folded
687 // and the cursor is just behind?
688 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
690 && fromInitToNormalMode
691 && macroInset->arity() > 0
692 && thisSlice + 1 == int(cur->depth())) {
693 // then enter it if the cursor was just behind
694 (*cur)[thisSlice].pos() = macroPos;
695 cur->push_back(CursorSlice(*macroInset));
696 macroInset->idxFirst(*cur);
701 void MathData::collectOptionalParameters(Cursor * cur,
702 const size_type numOptionalParams, vector<MathData> & params,
703 size_t & pos, MathAtom & scriptToPutAround,
704 const pos_type macroPos, const int thisPos, const int thisSlice)
706 Buffer * buf = cur ? cur->buffer() : 0;
707 // insert optional arguments?
708 while (params.size() < numOptionalParams
710 && !scriptToPutAround.nucleus()) {
711 // is a [] block following which could be an optional parameter?
712 if (operator[](pos)->getChar() != '[')
715 // found possible optional argument, look for "]"
716 size_t right = pos + 1;
717 for (; right < size(); ++right) {
718 MathAtom & cell = operator[](right);
720 if (cell->getChar() == ']')
724 // maybe "]" with a script around?
725 InsetMathScript * script = cell.nucleus()->asScriptInset();
728 if (script->nuc().size() != 1)
730 if (script->nuc()[0]->getChar() == ']') {
731 // script will be put around the macro later
732 scriptToPutAround = cell;
738 if (right >= size()) {
739 // no ] found, so it's not an optional argument
743 // add everything between [ and ] as optional argument
744 MathData optarg(buf, begin() + pos + 1, begin() + right);
748 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
750 params.push_back(optarg[0]->asBraceInset()->cell(0));
752 params.push_back(optarg);
754 // place cursor in optional argument of macro
756 && thisPos >= int(pos) && thisPos <= int(right)) {
757 int paramPos = max(0, thisPos - int(pos) - 1);
758 vector<CursorSlice> x;
759 cur->cutOff(thisSlice, x);
760 (*cur)[thisSlice].pos() = macroPos;
762 paramPos = x[0].pos();
765 cur->append(0, paramPos);
771 // fill up empty optional parameters
772 while (params.size() < numOptionalParams)
773 params.push_back(MathData());
777 void MathData::collectParameters(Cursor * cur,
778 const size_type numParams, vector<MathData> & params,
779 size_t & pos, MathAtom & scriptToPutAround,
780 const pos_type macroPos, const int thisPos, const int thisSlice,
781 const size_t appetite)
783 size_t startSize = params.size();
785 // insert normal arguments
786 while (params.size() < numParams
787 && params.size() - startSize < appetite
789 && !scriptToPutAround.nucleus()) {
790 MathAtom & cell = operator[](pos);
793 vector<CursorSlice> argSlices;
795 if (thisSlice != -1 && thisPos == int(pos))
796 cur->cutOff(thisSlice, argSlices);
798 // which kind of parameter is it? In {}? With index x^n?
799 InsetMathBrace const * brace = cell->asBraceInset();
801 // found brace, convert into argument
802 params.push_back(brace->cell(0));
804 // cursor inside of the brace or just in front of?
805 if (thisPos == int(pos) && !argSlices.empty()) {
806 argPos = argSlices[0].pos();
807 argSlices.erase(argSlices.begin());
809 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
810 // last inset with scripts without braces
811 // -> they belong to the macro, not the argument
812 InsetMathScript * script = cell.nucleus()->asScriptInset();
813 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
814 // nucleus in brace? Unpack!
815 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
817 params.push_back(script->nuc());
819 // script will be put around below
820 scriptToPutAround = cell;
822 // this should only happen after loading, so make cursor handling simple
823 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
829 // the simplest case: plain inset
831 array.insert(0, cell);
832 params.push_back(array);
835 // put cursor in argument again
836 if (thisSlice != - 1 && thisPos == int(pos)) {
837 cur->append(params.size() - 1, argPos);
838 cur->append(argSlices);
839 (*cur)[thisSlice].pos() = macroPos;
847 int MathData::pos2x(BufferView const * bv, size_type pos) const
849 return pos2x(bv, pos, 0);
853 int MathData::pos2x(BufferView const * bv, size_type pos, int glue) const
856 size_type target = min(pos, size());
857 CoordCacheBase<Inset> const & coords = bv->coordCache().getInsets();
858 for (size_type i = 0; i < target; ++i) {
859 const_iterator it = begin() + i;
860 if ((*it)->getChar() == ' ')
862 //lyxerr << "char: " << (*it)->getChar()
863 // << "width: " << (*it)->width() << endl;
864 x += coords.dim((*it).nucleus()).wid;
870 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
872 return x2pos(bv, targetx, 0);
876 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx, int glue) const
878 const_iterator it = begin();
881 CoordCacheBase<Inset> const & coords = bv->coordCache().getInsets();
882 // find first position after targetx
883 for (; currx < targetx && it < end(); ++it) {
885 if ((*it)->getChar() == ' ')
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 && ((*boost::prior(it))->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 ostream & operator<<(ostream & os, MathData const & ar)
959 odocstringstream oss;
960 NormalStream ns(oss);
962 return os << to_utf8(oss.str());
966 odocstream & operator<<(odocstream & os, MathData const & ar)