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/gettext.h"
40 #include "support/lassert.h"
41 #include <boost/next_prior.hpp>
50 MathData::MathData(Buffer * buf, const_iterator from, const_iterator to)
51 : base_type(from, to), buffer_(buf)
55 MathAtom & MathData::operator[](pos_type pos)
57 LBUFERR(pos < size(), _("Invalid MathData."));
58 return base_type::operator[](pos);
62 MathAtom const & MathData::operator[](pos_type pos) const
64 LBUFERR(pos < size(), _("Invalid MathData."));
65 return base_type::operator[](pos);
69 void MathData::insert(size_type pos, MathAtom const & t)
71 base_type::insert(begin() + pos, t);
75 void MathData::insert(size_type pos, MathData const & ar)
77 LBUFERR(pos <= size(), _("Invalid MathData."));
78 base_type::insert(begin() + pos, ar.begin(), ar.end());
82 void MathData::append(MathData const & ar)
88 void MathData::erase(size_type pos)
95 void MathData::erase(iterator pos1, iterator pos2)
97 base_type::erase(pos1, pos2);
101 void MathData::erase(iterator pos)
103 base_type::erase(pos);
107 void MathData::erase(size_type pos1, size_type pos2)
109 base_type::erase(begin() + pos1, begin() + pos2);
113 void MathData::dump2() const
117 for (const_iterator it = begin(); it != end(); ++it)
119 lyxerr << to_utf8(os.str());
123 void MathData::dump() const
127 for (const_iterator it = begin(); it != end(); ++it)
128 ns << '<' << *it << '>';
129 lyxerr << to_utf8(os.str());
133 void MathData::validate(LaTeXFeatures & features) const
135 for (const_iterator it = begin(); it != end(); ++it)
136 (*it)->validate(features);
140 bool MathData::match(MathData const & ar) const
142 return size() == ar.size() && matchpart(ar, 0);
146 bool MathData::matchpart(MathData const & ar, pos_type pos) const
148 if (size() < ar.size() + pos)
150 const_iterator it = begin() + pos;
151 for (const_iterator jt = ar.begin(); jt != ar.end(); ++jt, ++it)
152 if (asString(*it) != asString(*jt))
158 void MathData::replace(ReplaceData & rep)
160 for (size_type i = 0; i < size(); ++i) {
161 if (find1(rep.from, i)) {
163 lyxerr << "match found!" << endl;
164 erase(i, i + rep.from.size());
169 // FIXME: temporarily disabled
170 // for (const_iterator it = begin(); it != end(); ++it)
171 // it->nucleus()->replace(rep);
175 bool MathData::find1(MathData const & ar, size_type pos) const
177 lyxerr << "finding '" << ar << "' in '" << *this << "'" << endl;
178 for (size_type i = 0, n = ar.size(); i < n; ++i)
179 if (asString(operator[](pos + i)) != asString(ar[i]))
185 MathData::size_type MathData::find(MathData const & ar) const
187 for (int i = 0, last = size() - ar.size(); i < last; ++i)
194 MathData::size_type MathData::find_last(MathData const & ar) const
196 for (int i = size() - ar.size(); i >= 0; --i)
203 bool MathData::contains(MathData const & ar) const
205 if (find(ar) != size())
207 for (const_iterator it = begin(); it != end(); ++it)
208 if ((*it)->contains(ar))
214 void MathData::touch() const
221 bool isInside(DocIterator const & it, MathData const & ar,
222 pos_type p1, pos_type p2)
224 for (size_t i = 0; i != it.depth(); ++i) {
225 CursorSlice const & sl = it[i];
226 if (sl.inset().inMathed() && &sl.cell() == &ar)
227 return p1 <= sl.pos() && sl.pos() < p2;
236 void MathData::metrics(MetricsInfo & mi, Dimension & dim) const
238 frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
239 dim = fm.dimension('I');
240 int xascent = fm.dimension('x').ascent();
241 if (xascent >= dim.asc)
242 xascent = (2 * dim.asc) / 3;
244 mindes_ = (3 * xascent) / 4;
245 slevel_ = (4 * xascent) / 5;
246 sshift_ = xascent / 4;
250 // Cache the dimension.
251 mi.base.bv->coordCache().arrays().add(this, dim);
255 Cursor & cur = mi.base.bv->cursor();
256 const_cast<MathData*>(this)->updateMacros(&cur, mi.macrocontext, InternalUpdate);
258 DocIterator const & inlineCompletionPos = mi.base.bv->inlineCompletionPos();
259 MathData const * inlineCompletionData = 0;
260 if (inlineCompletionPos.inMathed())
261 inlineCompletionData = &inlineCompletionPos.cell();
266 CoordCacheBase<Inset> & coords = mi.base.bv->coordCache().insets();
267 for (pos_type i = 0, n = size(); i != n; ++i) {
268 MathAtom const & at = operator[](i);
270 coords.add(at.nucleus(), d);
273 kerning_ = at->kerning(mi.base.bv);
275 // HACK to draw completion suggestion inline
276 if (inlineCompletionData != this
277 || size_t(inlineCompletionPos.pos()) != i + 1)
280 docstring const & completion = mi.base.bv->inlineCompletion();
281 if (completion.length() == 0)
284 FontInfo font = mi.base.font;
285 augmentFont(font, from_ascii("mathnormal"));
286 dim.wid += mathed_string_width(font, completion);
288 // Cache the dimension.
289 mi.base.bv->coordCache().arrays().add(this, dim);
293 void MathData::draw(PainterInfo & pi, int x, int y) const
295 //lyxerr << "MathData::draw: x: " << x << " y: " << y << endl;
296 BufferView & bv = *pi.base.bv;
299 Dimension const & dim = bv.coordCache().getArrays().dim(this);
302 pi.pain.rectangle(x, y - dim.ascent(), dim.width(), dim.height(), Color_mathline);
306 // don't draw outside the workarea
307 if (y + dim.descent() <= 0
308 || y - dim.ascent() >= bv.workHeight()
309 || x + dim.width() <= 0
310 || x >= bv. workWidth())
313 DocIterator const & inlineCompletionPos = bv.inlineCompletionPos();
314 MathData const * inlineCompletionData = 0;
315 if (inlineCompletionPos.inMathed())
316 inlineCompletionData = &inlineCompletionPos.cell();
318 CoordCacheBase<Inset> & coords = pi.base.bv->coordCache().insets();
319 for (size_t i = 0, n = size(); i != n; ++i) {
320 MathAtom const & at = operator[](i);
321 coords.add(at.nucleus(), x, y);
322 at->drawSelection(pi, x, y);
324 x += coords.dim(at.nucleus()).wid;
326 // Is the inline completion here?
327 if (inlineCompletionData != this
328 || size_t(inlineCompletionPos.pos()) != i + 1)
330 docstring const & completion = bv.inlineCompletion();
331 if (completion.length() == 0)
333 FontInfo f = pi.base.font;
334 augmentFont(f, from_ascii("mathnormal"));
336 // draw the unique and the non-unique completion part
337 // Note: this is not time-critical as it is
338 // only done once per screen.
339 size_t uniqueTo = bv.inlineCompletionUniqueChars();
340 docstring s1 = completion.substr(0, uniqueTo);
341 docstring s2 = completion.substr(uniqueTo);
344 f.setColor(Color_inlinecompletion);
345 pi.pain.text(x, y, s1, f);
346 x += mathed_string_width(f, s1);
350 f.setColor(Color_nonunique_inlinecompletion);
351 pi.pain.text(x, y, s2, f);
352 x += mathed_string_width(f, s2);
358 void MathData::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
362 for (const_iterator it = begin(); it != end(); ++it) {
363 (*it)->metricsT(mi, d);
369 void MathData::drawT(TextPainter & pain, int x, int y) const
371 //lyxerr << "x: " << x << " y: " << y << ' ' << pain.workAreaHeight() << endl;
373 // FIXME: Abdel 16/10/2006
374 // This drawT() method is never used, this is dead code.
376 for (const_iterator it = begin(), et = end(); it != et; ++it) {
377 (*it)->drawT(pain, x, y);
378 //x += (*it)->width_;
384 void MathData::updateBuffer(ParIterator const & it, UpdateType utype)
387 for (size_t i = 0, n = size(); i != n; ++i) {
388 MathAtom & at = operator[](i);
389 at.nucleus()->updateBuffer(it, utype);
394 void MathData::updateMacros(Cursor * cur, MacroContext const & mc,
397 // If we are editing a macro, we cannot update it immediately,
398 // otherwise wrong undo steps will be recorded (bug 6208).
399 InsetMath const * inmath = cur ? cur->inset().asInsetMath() : 0;
400 MathMacro const * inmacro = inmath ? inmath->asMacro() : 0;
401 docstring const edited_name = inmacro ? inmacro->name() : docstring();
403 // go over the array and look for macros
404 for (size_t i = 0; i < size(); ++i) {
405 MathMacro * macroInset = operator[](i).nucleus()->asMacro();
406 if (!macroInset || macroInset->name_.empty()
407 || macroInset->name_[0] == '^'
408 || macroInset->name_[0] == '_'
409 || (macroInset->name() == edited_name
410 && macroInset->displayMode() ==
411 MathMacro::DISPLAY_UNFOLDED))
415 macroInset->updateMacro(mc);
416 size_t macroNumArgs = 0;
417 size_t macroOptionals = 0;
418 MacroData const * macro = macroInset->macro();
420 macroNumArgs = macro->numargs();
421 macroOptionals = macro->optionals();
424 // store old and compute new display mode
425 MathMacro::DisplayMode newDisplayMode;
426 MathMacro::DisplayMode oldDisplayMode = macroInset->displayMode();
427 newDisplayMode = macroInset->computeDisplayMode();
429 // arity changed or other reason to detach?
430 if (oldDisplayMode == MathMacro::DISPLAY_NORMAL
431 && (macroInset->arity() != macroNumArgs
432 || macroInset->optionals() != macroOptionals
433 || newDisplayMode == MathMacro::DISPLAY_UNFOLDED)) {
435 detachMacroParameters(cur, i);
436 // FIXME: proper anchor handling, this removes the selection
438 cur->clearSelection();
441 // the macro could have been copied while resizing this
442 macroInset = operator[](i).nucleus()->asMacro();
445 if (newDisplayMode != MathMacro::DISPLAY_UNFOLDED
446 && oldDisplayMode == MathMacro::DISPLAY_UNFOLDED) {
447 // put cursor in front of macro
449 int macroSlice = cur->find(macroInset);
450 if (macroSlice != -1)
451 cur->cutOff(macroSlice - 1);
455 // update the display mode
456 size_t appetite = macroInset->appetite();
457 macroInset->setDisplayMode(newDisplayMode);
460 if (newDisplayMode == MathMacro::DISPLAY_NORMAL
461 && (macroInset->arity() != macroNumArgs
462 || macroInset->optionals() != macroOptionals)) {
463 // is it a virgin macro which was never attached to parameters?
464 bool fromInitToNormalMode
465 = (oldDisplayMode == MathMacro::DISPLAY_INIT
466 || oldDisplayMode == MathMacro::DISPLAY_INTERACTIVE_INIT)
467 && newDisplayMode == MathMacro::DISPLAY_NORMAL;
469 // if the macro was entered interactively (i.e. not by paste or during
470 // loading), it should not be greedy, but the cursor should
471 // automatically jump into the macro when behind
472 bool interactive = (oldDisplayMode == MathMacro::DISPLAY_INTERACTIVE_INIT);
475 attachMacroParameters(cur, i, macroNumArgs, macroOptionals,
476 fromInitToNormalMode, interactive, appetite);
479 // FIXME: proper anchor handling, this removes the selection
480 cur->updateInsets(&cur->bottom().inset());
481 cur->clearSelection();
485 // Give macro the chance to adapt to new situation.
486 // The macroInset could be invalid now because it was put into a script
487 // inset and therefore "deep" copied. So get it again from the MathData.
488 InsetMath * inset = operator[](i).nucleus();
489 if (inset->asScriptInset())
490 inset = inset->asScriptInset()->nuc()[0].nucleus();
491 LASSERT(inset->asMacro(), continue);
492 inset->asMacro()->updateRepresentation(cur, mc, utype);
497 void MathData::detachMacroParameters(DocIterator * cur, const size_type macroPos)
499 MathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
501 // detach all arguments
502 vector<MathData> detachedArgs;
503 if (macroPos + 1 == size())
504 // strip arguments if we are at the MathData end
505 macroInset->detachArguments(detachedArgs, true);
507 macroInset->detachArguments(detachedArgs, false);
510 int curMacroSlice = -1;
512 curMacroSlice = cur->find(macroInset);
513 idx_type curMacroIdx = -1;
514 pos_type curMacroPos = -1;
515 vector<CursorSlice> argSlices;
516 if (curMacroSlice != -1) {
517 curMacroPos = (*cur)[curMacroSlice].pos();
518 curMacroIdx = (*cur)[curMacroSlice].idx();
519 cur->cutOff(curMacroSlice, argSlices);
523 // only [] after the last non-empty argument can be dropped later
524 size_t lastNonEmptyOptional = 0;
525 for (size_t l = 0; l < detachedArgs.size() && l < macroInset->optionals(); ++l) {
526 if (!detachedArgs[l].empty())
527 lastNonEmptyOptional = l;
530 // optional arguments to be put back?
531 pos_type p = macroPos + 1;
533 for (; j < detachedArgs.size() && j < macroInset->optionals(); ++j) {
534 // another non-empty parameter follows?
535 bool canDropEmptyOptional = j >= lastNonEmptyOptional;
537 // then we can drop empty optional parameters
538 if (detachedArgs[j].empty() && canDropEmptyOptional) {
539 if (curMacroIdx == j)
540 (*cur)[curMacroSlice - 1].pos() = macroPos + 1;
544 // Otherwise we don't drop an empty optional, put it back normally
546 asArray(from_ascii("[]"), optarg);
547 MathData & arg = detachedArgs[j];
549 // look for "]", i.e. put a brace around?
550 InsetMathBrace * brace = 0;
551 for (size_t q = 0; q < arg.size(); ++q) {
552 if (arg[q]->getChar() == ']') {
554 brace = new InsetMathBrace(buffer_);
559 // put arg between []
561 brace->cell(0) = arg;
562 optarg.insert(1, MathAtom(brace));
564 optarg.insert(1, arg);
566 // insert it into the array
571 if (curMacroSlice == -1)
574 // cursor in optional argument of macro?
575 if (curMacroIdx == j) {
577 cur->append(0, curMacroPos);
578 (*cur)[curMacroSlice - 1].pos() = macroPos + 2;
580 (*cur)[curMacroSlice - 1].pos() = macroPos + 2 + curMacroPos;
581 cur->append(argSlices);
582 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
583 // cursor right of macro
584 (*cur)[curMacroSlice - 1].pos() += optarg.size();
587 // put them back into the MathData
588 for (; j < detachedArgs.size(); ++j, ++p) {
589 MathData const & arg = detachedArgs[j];
591 && !arg[0]->asScriptInset()
592 && !(arg[0]->asMacro() && arg[0]->asMacro()->arity() > 0))
595 insert(p, MathAtom(new InsetMathBrace(arg)));
598 if (curMacroSlice == -1)
601 // cursor in j-th argument of macro?
602 if (curMacroIdx == j) {
603 if (operator[](p).nucleus()->asBraceInset()) {
604 (*cur)[curMacroSlice - 1].pos() = p;
605 cur->append(0, curMacroPos);
606 cur->append(argSlices);
608 (*cur)[curMacroSlice - 1].pos() = p; // + macroPos;
609 cur->append(argSlices);
611 } else if ((*cur)[curMacroSlice - 1].pos() >= int(p))
612 ++(*cur)[curMacroSlice - 1].pos();
616 cur->updateInsets(&cur->bottom().inset());
620 void MathData::attachMacroParameters(Cursor * cur,
621 const size_type macroPos, const size_type macroNumArgs,
622 const int macroOptionals, const bool fromInitToNormalMode,
623 const bool interactiveInit, const size_t appetite)
625 MathMacro * macroInset = operator[](macroPos).nucleus()->asMacro();
627 // start at atom behind the macro again, maybe with some new arguments
628 // from the detach phase above, to add them back into the macro inset
629 size_t p = macroPos + 1;
630 vector<MathData> detachedArgs;
631 MathAtom scriptToPutAround;
633 // find cursor slice again of this MathData
636 thisSlice = cur->find(*this);
639 thisPos = (*cur)[thisSlice].pos();
641 // find arguments behind the macro
642 if (!interactiveInit) {
643 collectOptionalParameters(cur, macroOptionals, detachedArgs, p,
644 scriptToPutAround, macroPos, thisPos, thisSlice);
646 collectParameters(cur, macroNumArgs, detachedArgs, p,
647 scriptToPutAround, macroPos, thisPos, thisSlice, appetite);
649 // attach arguments back to macro inset
650 macroInset->attachArguments(detachedArgs, macroNumArgs, macroOptionals);
652 // found tail script? E.g. \foo{a}b^x
653 if (scriptToPutAround.nucleus()) {
654 InsetMathScript * scriptInset =
655 scriptToPutAround.nucleus()->asScriptInset();
656 // In the math parser we remove empty braces in the base
657 // of a script inset, but we have to restore them here.
658 if (scriptInset->nuc().empty()) {
660 scriptInset->nuc().push_back(
661 MathAtom(new InsetMathBrace(ar)));
663 // put macro into a script inset
664 scriptInset->nuc()[0] = operator[](macroPos);
665 operator[](macroPos) = scriptToPutAround;
667 // go into the script inset nucleus
668 if (cur && thisPos == int(macroPos))
671 // get pointer to "deep" copied macro inset
672 scriptInset = operator[](macroPos).nucleus()->asScriptInset();
673 macroInset = scriptInset->nuc()[0].nucleus()->asMacro();
676 // remove them from the MathData
677 erase(begin() + macroPos + 1, begin() + p);
679 // cursor outside this MathData?
683 // fix cursor if right of p
684 if (thisPos >= int(p))
685 (*cur)[thisSlice].pos() -= p - (macroPos + 1);
687 // was the macro inset just inserted interactively and was now folded
688 // and the cursor is just behind?
689 if ((*cur)[thisSlice].pos() == int(macroPos + 1)
691 && fromInitToNormalMode
692 && macroInset->arity() > 0
693 && thisSlice + 1 == int(cur->depth())) {
694 // then enter it if the cursor was just behind
695 (*cur)[thisSlice].pos() = macroPos;
696 cur->push_back(CursorSlice(*macroInset));
697 macroInset->idxFirst(*cur);
702 void MathData::collectOptionalParameters(Cursor * cur,
703 const size_type numOptionalParams, vector<MathData> & params,
704 size_t & pos, MathAtom & scriptToPutAround,
705 const pos_type macroPos, const int thisPos, const int thisSlice)
707 Buffer * buf = cur ? cur->buffer() : 0;
708 // insert optional arguments?
709 while (params.size() < numOptionalParams
711 && !scriptToPutAround.nucleus()) {
712 // is a [] block following which could be an optional parameter?
713 if (operator[](pos)->getChar() != '[')
716 // found possible optional argument, look for "]"
717 size_t right = pos + 1;
718 for (; right < size(); ++right) {
719 MathAtom & cell = operator[](right);
721 if (cell->getChar() == ']')
725 // maybe "]" with a script around?
726 InsetMathScript * script = cell.nucleus()->asScriptInset();
729 if (script->nuc().size() != 1)
731 if (script->nuc()[0]->getChar() == ']') {
732 // script will be put around the macro later
733 scriptToPutAround = cell;
739 if (right >= size()) {
740 // no ] found, so it's not an optional argument
744 // add everything between [ and ] as optional argument
745 MathData optarg(buf, begin() + pos + 1, begin() + right);
749 if (optarg.size() == 1 && optarg[0]->asBraceInset()) {
751 params.push_back(optarg[0]->asBraceInset()->cell(0));
753 params.push_back(optarg);
755 // place cursor in optional argument of macro
757 && thisPos >= int(pos) && thisPos <= int(right)) {
758 int paramPos = max(0, thisPos - int(pos) - 1);
759 vector<CursorSlice> x;
760 cur->cutOff(thisSlice, x);
761 (*cur)[thisSlice].pos() = macroPos;
763 paramPos = x[0].pos();
766 cur->append(0, paramPos);
772 // fill up empty optional parameters
773 while (params.size() < numOptionalParams)
774 params.push_back(MathData());
778 void MathData::collectParameters(Cursor * cur,
779 const size_type numParams, vector<MathData> & params,
780 size_t & pos, MathAtom & scriptToPutAround,
781 const pos_type macroPos, const int thisPos, const int thisSlice,
782 const size_t appetite)
784 size_t startSize = params.size();
786 // insert normal arguments
787 while (params.size() < numParams
788 && params.size() - startSize < appetite
790 && !scriptToPutAround.nucleus()) {
791 MathAtom & cell = operator[](pos);
794 vector<CursorSlice> argSlices;
796 if (thisSlice != -1 && thisPos == int(pos))
797 cur->cutOff(thisSlice, argSlices);
799 // which kind of parameter is it? In {}? With index x^n?
800 InsetMathBrace const * brace = cell->asBraceInset();
802 // found brace, convert into argument
803 params.push_back(brace->cell(0));
805 // cursor inside of the brace or just in front of?
806 if (thisPos == int(pos) && !argSlices.empty()) {
807 argPos = argSlices[0].pos();
808 argSlices.erase(argSlices.begin());
810 } else if (cell->asScriptInset() && params.size() + 1 == numParams) {
811 // last inset with scripts without braces
812 // -> they belong to the macro, not the argument
813 InsetMathScript * script = cell.nucleus()->asScriptInset();
814 if (script->nuc().size() == 1 && script->nuc()[0]->asBraceInset())
815 // nucleus in brace? Unpack!
816 params.push_back(script->nuc()[0]->asBraceInset()->cell(0));
818 params.push_back(script->nuc());
820 // script will be put around below
821 scriptToPutAround = cell;
823 // this should only happen after loading, so make cursor handling simple
824 if (thisPos >= int(macroPos) && thisPos <= int(macroPos + numParams)) {
830 // the simplest case: plain inset
832 array.insert(0, cell);
833 params.push_back(array);
836 // put cursor in argument again
837 if (thisSlice != - 1 && thisPos == int(pos)) {
838 cur->append(params.size() - 1, argPos);
839 cur->append(argSlices);
840 (*cur)[thisSlice].pos() = macroPos;
848 int MathData::pos2x(BufferView const * bv, size_type pos) const
850 return pos2x(bv, pos, 0);
854 int MathData::pos2x(BufferView const * bv, size_type pos, int glue) const
857 size_type target = min(pos, size());
858 CoordCacheBase<Inset> const & coords = bv->coordCache().getInsets();
859 for (size_type i = 0; i < target; ++i) {
860 const_iterator it = begin() + i;
861 if ((*it)->getChar() == ' ')
863 //lyxerr << "char: " << (*it)->getChar()
864 // << "width: " << (*it)->width() << endl;
865 x += coords.dim((*it).nucleus()).wid;
871 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx) const
873 return x2pos(bv, targetx, 0);
877 MathData::size_type MathData::x2pos(BufferView const * bv, int targetx, int glue) const
879 const_iterator it = begin();
882 CoordCacheBase<Inset> const & coords = bv->coordCache().getInsets();
883 // find first position after targetx
884 for (; currx < targetx && it < end(); ++it) {
886 if ((*it)->getChar() == ' ')
888 currx += coords.dim((*it).nucleus()).wid;
892 * If we are not at the beginning of the array, go to the left
893 * of the inset if one of the following two condition holds:
894 * - the current inset is editable (so that the cursor tip is
895 * deeper than us): in this case, we want all intermediate
896 * cursor slices to be before insets;
897 * - the mouse is closer to the left side of the inset than to
899 * See bug 1918 for details.
901 if (it != begin() && currx >= targetx
902 && ((*boost::prior(it))->asNestInset()
903 || abs(lastx - targetx) < abs(currx - targetx))) {
911 int MathData::dist(BufferView const & bv, int x, int y) const
913 return bv.coordCache().getArrays().squareDistance(this, x, y);
917 void MathData::setXY(BufferView & bv, int x, int y) const
919 //lyxerr << "setting position cache for MathData " << this << endl;
920 bv.coordCache().arrays().add(this, x, y);
924 Dimension const & MathData::dimension(BufferView const & bv) const
926 return bv.coordCache().getArrays().dim(this);
930 int MathData::xm(BufferView const & bv) const
932 Geometry const & g = bv.coordCache().getArrays().geometry(this);
934 return g.pos.x_ + g.dim.wid / 2;
938 int MathData::ym(BufferView const & bv) const
940 Geometry const & g = bv.coordCache().getArrays().geometry(this);
942 return g.pos.y_ + (g.dim.des - g.dim.asc) / 2;
946 int MathData::xo(BufferView const & bv) const
948 return bv.coordCache().getArrays().x(this);
952 int MathData::yo(BufferView const & bv) const
954 return bv.coordCache().getArrays().y(this);
958 ostream & operator<<(ostream & os, MathData const & ar)
960 odocstringstream oss;
961 NormalStream ns(oss);
963 return os << to_utf8(oss.str());
967 odocstream & operator<<(odocstream & os, MathData const & ar)