3 * Purpose: Interaction for mathed
4 * Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
5 * Created: January 1996
6 * Description: Math interaction for a WYSIWYG math editor.
8 * Dependencies: Xlib, XForms
10 * Copyright: 1996, Alejandro Aguilar Sierra
12 * Version: 0.8beta, Math & Lyx project.
14 * You are free to use and modify this code under the terms of
15 * the GNU General Public Licence version 2 or later.
19 #pragma implementation
29 #include "mathed/support.h"
30 #include "formulabase.h"
31 #include "math_cursor.h"
32 #include "math_arrayinset.h"
33 #include "math_bigopinset.h"
34 #include "math_decorationinset.h"
35 #include "math_deliminset.h"
36 #include "math_dotsinset.h"
37 #include "math_fracinset.h"
38 #include "math_funcinset.h"
39 #include "math_gridinset.h"
40 #include "math_macro.h"
41 #include "math_macroarg.h"
42 #include "math_macrotable.h"
43 #include "math_macrotemplate.h"
44 #include "math_matrixinset.h"
45 #include "math_rootinset.h"
46 #include "math_spaceinset.h"
47 #include "math_sqrtinset.h"
48 #include "support/lstrings.h"
49 #include "math_scriptinset.h"
50 #include "math_parser.h"
57 #define RECTANGULAR_SELECT 1
63 void grab(MathCursor const & cursor)
68 cursor.getSelection(i1, i2);
69 if (i1.idx_ == i2.idx_)
70 data_.push_back(MathArray(i1.cell(), i1.pos_, i2.pos_));
72 #ifdef RECTANGULAR_SELECT
73 std::vector<int> indices = i1.par_->idxBetween(i1.idx_, i2.idx_);
74 for (unsigned i = 0; i < indices.size(); ++i)
75 data_.push_back(i1.cell(indices[i]));
77 data_.push_back(MathArray(i1.cell(), i1.pos_, i1.cell().size()));
78 for (int i = i1.idx_ + 1; i < i2.idx_; ++i)
79 data_.push_back(i1.cell(i));
80 data_.push_back(MathArray(i2.cell(), 0, i2.pos_));
85 void erase(MathCursor & cursor)
89 cursor.getSelection(i1, i2);
90 if (i1.idx_ == i2.idx_) {
91 i1.cell().erase(i1.pos_, i2.pos_);
93 #ifdef RECTANGULAR_SELECT
94 std::vector<int> indices = i1.par_->idxBetween(i1.idx_, i2.idx_);
95 for (unsigned i = 0; i < indices.size(); ++i)
96 i1.cell(indices[i]).erase();
98 i1.cell().erase(i1.pos_, i1.cell().size());
99 for (int i = i1.idx_ + 1; i < i2.idx_; ++i)
101 i2.cell().erase(0, i2.pos_);
103 int from = i1.cell().size() ? i1.idx_ + 1 : i1.idx_;
104 int to = i2.cell().size() ? i2.idx_ : i2.idx_ + 1;
105 i1.par_->idxDeleteRange(from, to);
108 cursor.cursor() = i1;
111 void paste(MathCursor & cursor) const
113 #ifdef RECTANGULAR_SELECT
114 cursor.cursor().cell().push_back(glue());
116 unsigned na = cursor.cursor().par_->nargs();
117 unsigned idx = cursor.cursor().idx_;
118 unsigned end = std::min(idx + data_.size(), na);
119 for (int i = 0; i < end - idx; ++i)
120 cursor.cursor().cell(idx + i).push_back(data_[i]);
121 for (unsigned i = end - idx; i < data_.size(); ++i)
122 cursor.cursor().cell(end - 1).push_back(data_[i]);
126 // glues selection to one cell
127 MathArray glue() const
130 for (unsigned i = 0; i < data_.size(); ++i)
131 ar.push_back(data_[i]);
142 std::vector<MathArray> data_;
146 Selection theSelection;
149 bool IsMacro(short tok, int id)
151 return tok != LM_TK_STACK &&
154 tok != LM_TK_DECORATION &&
155 tok != LM_TK_SPACE &&
157 tok != LM_TK_FUNCLIM &&
158 tok != LM_TK_BIGSYM &&
159 !(tok == LM_TK_SYM && id < 255);
163 std::ostream & operator<<(std::ostream & os, MathCursorPos const & p)
165 os << "(par: " << p.par_ << " idx: " << p.idx_
166 << " pos: " << p.pos_ << ")";
173 MathCursor::MathCursor(InsetFormulaBase * formula)
176 lastcode = LM_TC_MIN;
183 void MathCursor::push(MathInset * par, bool first)
188 par->idxFirst(p.idx_, p.pos_);
190 par->idxLast(p.idx_, p.pos_);
191 Cursor_.push_back(p);
195 bool MathCursor::pop()
197 if (Cursor_.size() <= 1)
204 MathInset * MathCursor::parInset(int i) const
206 return Cursor_[i].par_;
210 void MathCursor::dump(char const * what) const
214 lyxerr << "MC: " << what
215 << " cursor.pos: " << cursor().pos_
216 << " cursor.idx: " << cursor().idx_
217 << " cursor.par: " << cursor().par_
218 << " sel: " << selection
219 << " data: " << array()
224 void MathCursor::seldump(char const *) const
226 //lyxerr << "SEL: " << str << ": '" << theSelection << "'\n";
230 //lyxerr << "\n\n\\n=================vvvvvvvvvvvvv======================= "
231 // << str << "\ntheSelection: " << theSelection;
232 //for (unsigned int i = 0; i < Cursor_.size(); ++i)
233 // lyxerr << Cursor_[i].par_ << "\n'" << Cursor_[i].cell() << "'\n";
234 //lyxerr << "\ncursor.pos_: " << cursor().pos_;
235 //lyxerr << "\nanchor.pos_: " << anchor().pos_;
236 //lyxerr << "\n===================^^^^^^^^^^^^=====================\n\n\n";
240 bool MathCursor::isInside(MathInset * p) const
242 for (unsigned i = 0; i < Cursor_.size(); ++i)
243 if (parInset(i) == p)
249 bool MathCursor::openable(MathInset * p, bool sel, bool useupdown) const
253 if (!(p->isActive() || (useupdown && p->isUpDownInset())))
257 // we can't move into everything during selection
258 if (Cursor_.size() == Anchor_.size())
260 if (p != Anchor_[Cursor_.size()].par_)
267 bool MathCursor::plainLeft()
269 return array().prev(cursor().pos_);
273 bool MathCursor::Left(bool sel)
277 // was MacroModeBack()
278 if (!imacro->name().empty()) {
279 imacro->SetName(imacro->name().substr(0, imacro->name().length()-1));
280 imacro->Metrics(imacro->size());
288 MathInset * p = prevInset();
289 if (openable(p, sel, false)) {
290 array().prev(cursor().pos_);
294 if (array().prev(cursor().pos_))
296 if (cursor().par_->idxLeft(cursor().idx_, cursor().pos_))
304 bool MathCursor::plainRight()
306 return array().next(cursor().pos_);
310 bool MathCursor::Right(bool sel)
320 MathInset * p = nextInset();
321 if (openable(p, sel, false)) {
325 if (array().next(cursor().pos_))
327 if (cursor().par_->idxRight(cursor().idx_, cursor().pos_))
331 array().next(cursor().pos_);
336 void MathCursor::first()
339 push(formula_->par(), true);
343 void MathCursor::last()
346 push(formula_->par(), false);
350 void MathCursor::SetPos(int x, int y)
353 //lyxerr << "MathCursor::SetPos x: " << x << " y: " << y << "\n";
356 lastcode = LM_TC_MIN;
359 cursor().par_ = formula()->par();
364 //lyxerr << "found idx: " << idx_ << " cursor: " << cursor().pos_ << "\n";
365 int distmin = 1 << 30; // large enough
366 for (int i = 0; i < cursor().par_->nargs(); ++i) {
367 MathXArray const & ar = cursor().par_->xcell(i);
368 int x1 = x - ar.xo();
369 int y1 = y - ar.yo();
370 int c = ar.x2pos(x1);
371 int xx = abs(x1 - ar.pos2x(c));
373 //lyxerr << "idx: " << i << " xx: " << xx << " yy: " << yy
374 // << " c: " << c << " xo: " << ar.xo() << "\n";
375 if (yy + xx <= distmin) {
381 //lyxerr << "found idx: " << cursor().idx_ << " cursor: "
382 // << cursor().pos_ << "\n";
383 MathInset * n = nextInset();
384 MathInset * p = prevInset();
385 if (openable(n, selection, true) && n->covers(x, y))
387 else if (openable(p, selection, true) && p->covers(x, y)) {
388 array().prev(cursor().pos_);
397 void MathCursor::Home()
403 if (!cursor().par_->idxHome(cursor().idx_, cursor().pos_))
409 void MathCursor::End()
415 if (!cursor().par_->idxEnd(cursor().idx_, cursor().pos_)) {
417 array().next(cursor().pos_);
423 void MathCursor::insert(char c, MathTextCodes t)
425 //lyxerr << "inserting '" << c << "'\n";
432 if (macro_mode && !(MathIsAlphaFont(t) || t == LM_TC_MIN))
436 if (MathIsAlphaFont(t) || t == LM_TC_MIN) {
437 // was MacroModeinsert(c);
438 imacro->SetName(imacro->name() + static_cast<char>(c));
443 array().insert(cursor().pos_, c, t);
444 array().next(cursor().pos_);
450 void MathCursor::insert(MathInset * p)
461 array().insert(cursor().pos_, p);
462 array().next(cursor().pos_);
466 void MathCursor::insert(MathArray const & ar)
472 array().insert(cursor().pos_, ar);
473 cursor().pos_ += ar.size();
477 void MathCursor::Delete()
488 if (cursor().pos_ < array().size())
489 array().erase(cursor().pos_);
491 // delete empty cells if necessary
492 if (cursor().pos_ == 0 && array().size() == 0) {
495 cursor().par_->idxDelete(cursor().idx_, popit, removeit);
496 if (popit && pop() && removeit)
501 #warning pullArg disabled
503 //if (cursor().pos_ == 0 && Cursor_.size() >= 1) {
504 // lyxerr << "Delete: popping...\n";
512 void MathCursor::DelLine()
521 if (cursor().par_->nrows() > 1)
522 cursor().par_->delRow(row());
526 bool MathCursor::Up(bool sel)
533 int x = xarray().pos2x(cursor().pos_);
534 if (cursor().par_->idxUp(cursor().idx_, cursor().pos_)) {
535 cursor().pos_ = xarray().x2pos(x);
543 // check whether we could move into an inset on the right or on the left
544 MathInset * p = nextInset();
547 if (p->idxFirstUp(idx, pos)) {
560 if (p->idxLastUp(idx, pos)) {
561 array().prev(cursor().pos_);
571 int x = xarray().pos2x(cursor().pos_);
572 if (cursor().idxUp()) {
573 cursor().pos_ = xarray().x2pos(x);
582 bool MathCursor::Down(bool sel)
589 int x = xarray().pos2x(cursor().pos_);
590 if (cursor().idxDown()) {
591 cursor().pos_ = xarray().x2pos(x);
599 // check whether we could move into an inset on the right or on the left
600 MathInset * p = nextInset();
603 if (p->idxFirstDown(idx, pos)) {
615 if (p->idxLastDown(idx, pos)) {
616 array().prev(cursor().pos_);
625 int x = xarray().pos2x(cursor().pos_);
626 if (cursor().par_->idxDown(cursor().idx_, cursor().pos_)) {
627 cursor().pos_ = xarray().x2pos(x);
636 bool MathCursor::toggleLimits()
640 MathInset * p = prevInset();
641 int old = p->limits();
642 p->limits(old < 0 ? 1 : -1);
643 return old != p->limits();
647 void MathCursor::SetSize(MathStyles size)
649 cursor().par_->UserSetSize(size);
654 void MathCursor::Interpret(string const & s)
656 lyxerr << "Interpret: '" << s << "' ('" << s.substr(0, 7) << "' " <<
657 in_word_set(s) << " \n";
660 MathUpDownInset * p = nearbyUpDownInset();
662 p = new MathScriptInset(true, false);
664 array().prev(cursor().pos_);
673 MathUpDownInset * p = nearbyUpDownInset();
675 p = new MathScriptInset(false, true);
677 array().prev(cursor().pos_);
685 if (s[0] == '!' || s[0] == ',' || s[0] == ':' || s[0] == ';') {
686 int sp = (s[0] == ',') ? 1:((s[0] == ':') ? 2:((s[0] == ';') ? 3: 0));
687 insert(new MathSpaceInset(sp));
692 latexkeys const * l = in_word_set(s);
696 p = new MathRootInset;
697 else if (MathMacroTable::hasTemplate(s))
698 p = new MathMacro(MathMacroTable::provideTemplate(s));
699 else if (s.size() > 7 && s.substr(0, 7) == "matrix ") {
704 istringstream is(s.substr(7).c_str());
705 is >> m >> n >> v_align >> h_align;
709 MathArrayInset * pp = new MathArrayInset(m, n);
710 pp->valign(v_align[0]);
715 p = new MathFuncInset(s, LM_OT_UNDEF);
719 p = new MathBigopInset(l->name, l->id);
724 insert(l->id, MathIsBOPS(l->id) ? LM_TC_BOPS : LM_TC_SYMB);
726 p = new MathFuncInset(l->name);
730 p = new MathFracInset("stackrel");
734 p = new MathFracInset("frac");
738 p = new MathSqrtInset;
741 case LM_TK_DECORATION:
742 p = new MathDecorationInset(l->name, l->id);
746 p = new MathFuncInset(l->name, LM_OT_FUNCLIM);
750 p = new MathSpaceInset(l->id);
754 p = new MathDotsInset(l->name, l->id);
758 p = new MathMacro(MathMacroTable::provideTemplate(s));
762 p = new MathFuncInset(l->name);
768 bool oldsel = selection;
773 array().prev(cursor().pos_);
778 p->Metrics(p->size());
783 void MathCursor::MacroModeOpen()
786 imacro = new MathFuncInset("");
790 lyxerr << "Math Warning: Already in macro mode" << endl;
794 void MathCursor::MacroModeClose()
798 latexkeys const * l = in_word_set(imacro->name());
799 if (!imacro->name().empty()
800 && (!l || (l && IsMacro(l->token, l->id)))
801 && !MathMacroTable::hasTemplate(imacro->name()))
804 //imacro->SetName(macrobf);
805 // This guarantees that the string will be removed by destructor
806 imacro->SetType(LM_OT_UNDEF);
808 imacro->SetName(l->name);
811 array().erase(cursor().pos_);
812 if (l || MathMacroTable::hasTemplate(imacro->name()))
813 Interpret(imacro->name());
814 imacro->SetName(string());
821 void MathCursor::SelCopy()
825 theSelection.grab(*this);
831 void MathCursor::SelCut()
835 theSelection.grab(*this);
836 theSelection.erase(*this);
842 void MathCursor::SelDel()
846 theSelection.erase(*this);
852 void MathCursor::SelPaste()
855 theSelection.paste(*this);
860 void MathCursor::SelHandle(bool sel)
862 if (sel && !selection)
864 if (!sel && selection)
869 void MathCursor::SelStart()
880 void MathCursor::SelClear()
886 void MathCursor::drawSelection(Painter & pain) const
893 getSelection(i1, i2);
895 //lyxerr << "selection from: " << i1 << " to " << i2 << "\n";
897 if (i1.idx_ == i2.idx_) {
898 MathXArray & c = i1.xcell();
899 int x1 = c.xo() + c.pos2x(i1.pos_);
900 int y1 = c.yo() - c.ascent();
901 int x2 = c.xo() + c.pos2x(i2.pos_);
902 int y2 = c.yo() + c.descent();
903 pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
906 #if RECTANGULAR_SELECT
907 std::vector<int> indices = i1.par_->idxBetween(i1.idx_, i2.idx_);
908 for (unsigned i = 0; i < indices.size(); ++i) {
909 MathXArray & c = i1.xcell(indices[i]);
911 int y1 = c.yo() - c.ascent();
912 int x2 = c.xo() + c.width();
913 int y2 = c.yo() + c.descent();
914 pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
918 MathXArray & c = i1.xcell();
919 int x1 = c.xo() + c.pos2x(i1.pos_);
920 int y1 = c.yo() - c.ascent();
921 int x2 = c.xo() + c.width();
922 int y2 = c.yo() + c.descent();
923 pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
925 for (int idx = i1.idx_ + 1; idx < i2.idx_; ++idx) {
926 MathXArray & c = i1.xcell(idx);
928 int y1 = c.yo() - c.ascent();
929 int x2 = c.xo() + c.width();
930 int y2 = c.yo() + c.descent();
931 pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
934 MathXArray & cr = i2.xcell();
936 y1 = cr.yo() - cr.ascent();
937 x2 = cr.xo() + cr.pos2x(i2.pos_);
938 y2 = cr.yo() + cr.descent();
939 pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
945 void MathCursor::handleFont(MathTextCodes t)
950 getSelection(i1, i2);
951 if (i1.idx_ == i2.idx_) {
952 MathArray & ar = i1.cell();
953 for (int pos = i1.pos_; pos != i2.pos_; ar.next(pos))
954 if (!ar.isInset(pos) && isalnum(ar.GetChar(pos))) {
955 MathTextCodes c = ar.GetCode(pos) == t ? LM_TC_VAR : t;
960 lastcode = (lastcode == t) ? LM_TC_VAR : t;
965 void MathCursor::handleAccent(string const & name, int code)
967 MathDecorationInset * p = new MathDecorationInset(name, code);
970 p->cell(0) = theSelection.glue();
977 void MathCursor::handleDelim(int l, int r)
979 MathDelimInset * p = new MathDelimInset(l, r);
982 p->cell(0) = theSelection.glue();
989 void MathCursor::GetPos(int & x, int & y)
991 x = xarray().xo() + xarray().pos2x(cursor().pos_);
996 MathTextCodes MathCursor::nextCode() const
998 return array().GetCode(cursor().pos_);
1002 MathTextCodes MathCursor::prevCode() const
1004 return array().GetCode(cursor().pos_ - 1);
1008 MathInset * MathCursor::par() const
1010 return cursor().par_;
1014 InsetFormulaBase const * MathCursor::formula()
1020 int MathCursor::pos() const
1022 return cursor().pos_;
1026 bool MathCursor::InMacroMode() const
1032 bool MathCursor::Selection() const
1038 void MathCursor::clearLastCode()
1040 lastcode = LM_TC_MIN;
1044 void MathCursor::setLastCode(MathTextCodes t)
1050 MathTextCodes MathCursor::getLastCode() const
1056 MathInset * MathCursor::enclosing(MathInsetTypes t, int & idx) const
1058 for (int i = Cursor_.size() - 1; i >= 0; --i) {
1059 //lyxerr << "checking level " << i << "\n";
1060 if (Cursor_[i].par_->GetType() == t) {
1061 idx = Cursor_[i].idx_;
1062 return Cursor_[i].par_;
1069 void MathCursor::pullArg()
1072 MathArray a = array();
1076 array().erase(cursor().pos_);
1077 array().insert(cursor().pos_, a);
1081 MathStyles MathCursor::style() const
1083 return xarray().style();
1087 void MathCursor::normalize() const
1089 #ifdef WITH_WARNINGS
1090 #warning This is evil!
1092 MathCursor * it = const_cast<MathCursor *>(this);
1094 if (cursor().idx_ < 0 || cursor().idx_ > cursor().par_->nargs())
1095 lyxerr << "this should not really happen - 1\n";
1096 it->cursor().idx_ = max(cursor().idx_, 0);
1097 it->cursor().idx_ = min(cursor().idx_, cursor().par_->nargs());
1099 if (cursor().pos_ < 0 || cursor().pos_ > array().size())
1100 lyxerr << "this should not really happen - 2\n";
1101 it->cursor().pos_ = max(cursor().pos_, 0);
1102 it->cursor().pos_ = min(cursor().pos_, array().size());
1106 int MathCursor::col() const
1108 return par()->col(cursor().idx_);
1112 int MathCursor::row() const
1114 return par()->row(cursor().idx_);
1119 char MathCursorPos::GetChar() const
1121 return array().GetChar(cursor().pos_);
1125 string MathCursorPos::readString()
1128 int code = nextCode();
1129 for ( ; OK() && nextCode() == code; Next())
1137 MathInset * MathCursor::prevInset() const
1140 int c = cursor().pos_;
1141 if (!array().prev(c))
1143 return array().nextInset(c);
1147 MathInset * MathCursor::nextInset() const
1150 return array().nextInset(cursor().pos_);
1154 MathUpDownInset * MathCursor::nearbyUpDownInset() const
1157 MathInset * p = array().prevInset(cursor().pos_);
1158 if (p && p->isUpDownInset())
1159 return static_cast<MathUpDownInset *>(p);
1160 p = array().nextInset(cursor().pos_);
1161 if (p && p->isUpDownInset())
1162 return static_cast<MathUpDownInset *>(p);
1167 MathArray & MathCursor::array() const
1169 static MathArray dummy;
1170 if (!cursor().par_) {
1171 lyxerr << "############ par_ not valid\n";
1175 if (cursor().idx_ < 0 || cursor().idx_ >= cursor().par_->nargs()) {
1176 lyxerr << "############ idx_ " << cursor().idx_ << " not valid\n";
1180 return cursor().cell();
1184 MathXArray & MathCursor::xarray() const
1186 return cursor().xcell();
1190 bool MathCursor::nextIsInset() const
1192 return cursor().pos_ < array().size() && MathIsInset(nextCode());
1196 bool MathCursor::prevIsInset() const
1198 return cursor().pos_ > 0 && MathIsInset(prevCode());
1202 int MathCursor::xpos() const
1205 return xarray().pos2x(cursor().pos_);
1209 void MathCursor::gotoX(int x)
1211 cursor().pos_ = xarray().x2pos(x);
1215 void MathCursor::idxNext()
1217 cursor().par_->idxNext(cursor().idx_, cursor().pos_);
1221 void MathCursor::idxPrev()
1223 cursor().par_->idxPrev(cursor().idx_, cursor().pos_);
1227 void MathCursor::splitCell()
1229 if (cursor().idx_ == cursor().par_->nargs() - 1)
1231 MathArray ar = array();
1232 ar.erase(0, cursor().pos_);
1233 array().erase(cursor().pos_, array().size());
1236 array().insert(0, ar);
1240 void MathCursor::breakLine()
1242 MathMatrixInset * p = static_cast<MathMatrixInset *>(formula()->par());
1243 if (p->GetType() == LM_OT_SIMPLE || p->GetType() == LM_OT_EQUATION) {
1244 p->mutate(LM_OT_EQNARRAY);
1246 cursor().idx_ = p->nrows();
1252 const int r = row();
1253 for (int c = col() + 1; c < p->ncols(); ++c) {
1254 const int i1 = p->index(r, c);
1255 const int i2 = p->index(r + 1, c);
1256 lyxerr << "swapping cells " << i1 << " and " << i2 << "\n";
1257 p->cell(i1).swap(p->cell(i2));
1262 p->cell(cursor().idx_).swap(p->cell(cursor().idx_ + p->ncols() - 1));
1267 char MathCursor::valign() const
1271 static_cast<MathGridInset *>(enclosing(LM_OT_MATRIX, idx));
1272 return p ? p->valign() : 0;
1276 char MathCursor::halign() const
1280 static_cast<MathGridInset *>(enclosing(LM_OT_MATRIX, idx));
1281 return p ? p->halign(idx % p->ncols()) : 0;
1285 MathCursorPos MathCursor::firstSelectionPos() const
1287 MathCursorPos anc = normalAnchor();
1288 return anc < cursor() ? anc : cursor();
1292 MathCursorPos MathCursor::lastSelectionPos() const
1294 MathCursorPos anc = normalAnchor();
1295 return anc < cursor() ? cursor() : anc;
1299 void MathCursor::getSelection(MathCursorPos & i1, MathCursorPos & i2) const
1301 MathCursorPos anc = normalAnchor();
1302 if (anc < cursor()) {
1312 MathCursorPos & MathCursor::cursor()
1314 return Cursor_.back();
1318 MathCursorPos const & MathCursor::cursor() const
1320 return Cursor_.back();
1325 ////////////////////////////////////////////////////////////////////////
1328 bool operator==(MathCursorPos const & ti, MathCursorPos const & it)
1330 return ti.par_ == it.par_ && ti.idx_ == it.idx_ && ti.pos_ == it.pos_;
1334 bool operator<(MathCursorPos const & ti, MathCursorPos const & it)
1336 if (ti.par_ != it.par_) {
1337 lyxerr << "can't compare cursor and anchor in different insets\n";
1340 if (ti.idx_ != it.idx_)
1341 return ti.idx_ < it.idx_;
1342 return ti.pos_ < it.pos_;
1346 MathArray & MathCursorPos::cell(int idx) const
1348 return par_->cell(idx);
1351 MathArray & MathCursorPos::cell() const
1353 return par_->cell(idx_);
1357 MathXArray & MathCursorPos::xcell(int idx) const
1359 return par_->xcell(idx);
1363 MathXArray & MathCursorPos::xcell() const
1365 return par_->xcell(idx_);
1369 MathCursorPos MathCursor::normalAnchor() const
1371 // use Anchor on the same level as Cursor
1372 MathCursorPos normal = Anchor_[Cursor_.size() - 1];
1373 if (Cursor_.size() < Anchor_.size() && !(normal < cursor())) {
1374 // anchor is behind cursor -> move anchor behind the inset
1375 normal.cell().next(normal.pos_);
1377 //lyxerr << "normalizing: from " << Anchor_[Anchor_.size() - 1] << " to "
1378 // << normal << "\n";
1383 bool MathCursorPos::idxUp()
1385 return par_->idxUp(idx_, pos_);
1389 bool MathCursorPos::idxDown()
1391 return par_->idxDown(idx_, pos_);
1395 bool MathCursorPos::idxLeft()
1397 return par_->idxLeft(idx_, pos_);
1401 bool MathCursorPos::idxRight()
1403 return par_->idxRight(idx_, pos_);