3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Alejandro Aguilar Sierra
7 * \author Alfredo Braunstein
9 * \author Stefan Schimanski
11 * Full author contact details are available in file CREDITS.
17 #include "BufferView.h"
18 #include "bufferview_funcs.h"
21 #include "CoordCache.h"
22 #include "CutAndPaste.h"
24 #include "DispatchResult.h"
26 #include "FuncRequest.h"
30 #include "LyXFunc.h" // only for setMessage()
34 #include "Paragraph.h"
35 #include "paragraph_funcs.h"
36 #include "ParIterator.h"
38 #include "insets/InsetTabular.h"
39 #include "insets/InsetText.h"
41 #include "mathed/MathData.h"
42 #include "mathed/InsetMath.h"
43 #include "mathed/InsetMathScript.h"
44 #include "mathed/MacroTable.h"
46 #include "support/limited_stack.h"
48 #include <boost/assert.hpp>
49 #include <boost/bind.hpp>
50 #include <boost/current_function.hpp>
67 positionable(DocIterator const & cursor, DocIterator const & anchor)
69 // avoid deeper nested insets when selecting
70 if (cursor.depth() > anchor.depth())
73 // anchor might be deeper, should have same path then
74 for (size_t i = 0; i < cursor.depth(); ++i)
75 if (&cursor[i].inset() != &anchor[i].inset())
78 // position should be ok.
83 // Find position closest to (x, y) in cell given by iter.
84 // Used only in mathed
85 DocIterator bruteFind2(Cursor const & c, int x, int y)
87 double best_dist = std::numeric_limits<double>::max();
94 et.top().pos() = et.top().asInsetMath()->cell(et.top().idx()).size();
95 for (size_t i = 0;; ++i) {
98 Inset const * inset = &it.inset();
99 std::map<Inset const *, Point> const & data =
100 c.bv().coordCache().getInsets().getData();
101 std::map<Inset const *, Point>::const_iterator I = data.find(inset);
103 // FIXME: in the case where the inset is not in the cache, this
104 // means that no part of it is visible on screen. In this case
105 // we don't do elaborate search and we just return the forwarded
106 // DocIterator at its beginning.
107 if (I == data.end()) {
113 inset->cursorPos(c.bv(), it.top(), c.boundary(), xo, yo);
114 // Convert to absolute
117 double d = (x - xo) * (x - xo) + (y - yo) * (y - yo);
118 // '<=' in order to take the last possible position
119 // this is important for clicking behind \sum in e.g. '\sum_i a'
120 LYXERR(Debug::DEBUG) << "i: " << i << " d: " << d
121 << " best: " << best_dist << endl;
122 if (d <= best_dist) {
134 /// moves position closest to (x, y) in given box
135 bool bruteFind(Cursor & cursor,
136 int x, int y, int xlow, int xhigh, int ylow, int yhigh)
138 BOOST_ASSERT(!cursor.empty());
139 Inset & inset = cursor[0].inset();
140 BufferView & bv = cursor.bv();
142 CoordCache::InnerParPosCache const & cache =
143 bv.coordCache().getParPos().find(cursor.bottom().text())->second;
144 // Get an iterator on the first paragraph in the cache
145 DocIterator it(inset);
146 it.push_back(CursorSlice(inset));
147 it.pit() = cache.begin()->first;
148 // Get an iterator after the last paragraph in the cache
149 DocIterator et(inset);
150 et.push_back(CursorSlice(inset));
151 et.pit() = boost::prior(cache.end())->first;
152 if (et.pit() >= et.lastpit())
153 et = doc_iterator_end(inset);
157 double best_dist = std::numeric_limits<double>::max();;
158 DocIterator best_cursor = et;
160 for ( ; it != et; it.forwardPos(true)) {
161 // avoid invalid nesting when selecting
162 if (!cursor.selection() || positionable(it, cursor.anchor_)) {
163 Point p = bv_funcs::getPos(bv, it, false);
166 if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
167 double const dx = xo - x;
168 double const dy = yo - y;
169 double const d = dx * dx + dy * dy;
170 // '<=' in order to take the last possible position
171 // this is important for clicking behind \sum in e.g. '\sum_i a'
172 if (d <= best_dist) {
173 // lyxerr << "*" << endl;
181 if (best_cursor != et) {
182 cursor.setCursor(best_cursor);
190 /// moves position closest to (x, y) in given box
191 bool bruteFind3(Cursor & cur, int x, int y, bool up)
193 BufferView & bv = cur.bv();
194 int ylow = up ? 0 : y + 1;
195 int yhigh = up ? y - 1 : bv.workHeight();
197 int xhigh = bv.workWidth();
199 // FIXME: bit more work needed to get 'from' and 'to' right.
200 pit_type from = cur.bottom().pit();
201 //pit_type to = cur.bottom().pit();
202 //lyxerr << "Pit start: " << from << endl;
204 //lyxerr << "bruteFind3: x: " << x << " y: " << y
205 // << " xlow: " << xlow << " xhigh: " << xhigh
206 // << " ylow: " << ylow << " yhigh: " << yhigh
208 Inset & inset = bv.buffer()->inset();
209 DocIterator it = doc_iterator_begin(inset);
211 DocIterator et = doc_iterator_end(inset);
213 double best_dist = std::numeric_limits<double>::max();
214 DocIterator best_cursor = et;
216 for ( ; it != et; it.forwardPos()) {
217 // avoid invalid nesting when selecting
218 if (bv_funcs::status(&bv, it) == bv_funcs::CUR_INSIDE
219 && (!cur.selection() || positionable(it, cur.anchor_))) {
220 Point p = bv_funcs::getPos(bv, it, false);
223 if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
224 double const dx = xo - x;
225 double const dy = yo - y;
226 double const d = dx * dx + dy * dy;
227 //lyxerr << "itx: " << xo << " ity: " << yo << " d: " << d
228 // << " dx: " << dx << " dy: " << dy
229 // << " idx: " << it.idx() << " pos: " << it.pos()
232 // '<=' in order to take the last possible position
233 // this is important for clicking behind \sum in e.g. '\sum_i a'
234 if (d <= best_dist) {
235 //lyxerr << "*" << endl;
243 //lyxerr << "best_dist: " << best_dist << " cur:\n" << best_cursor << endl;
244 if (best_cursor == et)
246 cur.setCursor(best_cursor);
250 docstring parbreak(Paragraph const & par)
252 odocstringstream ods;
254 // only add blank line if we're not in an ERT or Listings inset
255 if (par.ownerCode() != Inset::ERT_CODE
256 && par.ownerCode() != Inset::LISTINGS_CODE)
264 // be careful: this is called from the bv's constructor, too, so
265 // bv functions are not yet available!
266 Cursor::Cursor(BufferView & bv)
267 : DocIterator(), bv_(&bv), anchor_(), x_target_(-1), textTargetOffset_(0),
268 selection_(false), mark_(false), logicalpos_(false)
272 void Cursor::reset(Inset & inset)
275 push_back(CursorSlice(inset));
276 anchor_ = DocIterator(inset);
283 // this (intentionally) does neither touch anchor nor selection status
284 void Cursor::setCursor(DocIterator const & cur)
286 DocIterator::operator=(cur);
290 void Cursor::dispatch(FuncRequest const & cmd0)
292 LYXERR(Debug::DEBUG) << BOOST_CURRENT_FUNCTION
293 << " cmd: " << cmd0 << '\n'
299 FuncRequest cmd = cmd0;
302 // store some values to be used inside of the handlers
303 getPos(beforeDispX_, beforeDispY_);
304 beforeDispDepth_ = depth();
306 for (; depth(); pop()) {
307 LYXERR(Debug::DEBUG) << "Cursor::dispatch: cmd: "
308 << cmd0 << endl << *this << endl;
309 BOOST_ASSERT(pos() <= lastpos());
310 BOOST_ASSERT(idx() <= lastidx());
311 BOOST_ASSERT(pit() <= lastpit());
313 // The common case is 'LFUN handled, need update', so make the
314 // LFUN handler's life easier by assuming this as default value.
315 // The handler can reset the update and val flags if necessary.
316 disp_.update(Update::FitCursor | Update::Force);
317 disp_.dispatched(true);
318 inset().dispatch(*this, cmd);
319 if (disp_.dispatched())
322 // it completely to get a 'bomb early' behaviour in case this
323 // object will be used again.
324 if (!disp_.dispatched()) {
325 LYXERR(Debug::DEBUG) << "RESTORING OLD CURSOR!" << endl;
327 disp_.update(Update::None);
328 disp_.dispatched(false);
333 DispatchResult Cursor::result() const
339 BufferView & Cursor::bv() const
346 Buffer & Cursor::buffer() const
349 BOOST_ASSERT(bv_->buffer());
350 return *bv_->buffer();
356 BOOST_ASSERT(depth() >= 1);
361 void Cursor::push(Inset & p)
363 push_back(CursorSlice(p));
367 void Cursor::pushLeft(Inset & p)
369 BOOST_ASSERT(!empty());
370 //lyxerr << "Entering inset " << t << " left" << endl;
376 bool Cursor::popLeft()
378 BOOST_ASSERT(!empty());
379 //lyxerr << "Leaving inset to the left" << endl;
380 inset().notifyCursorLeaves(*this);
388 bool Cursor::popRight()
390 BOOST_ASSERT(!empty());
391 //lyxerr << "Leaving inset to the right" << endl;
392 const pos_type lp = (depth() > 1) ? (*this)[depth() - 2].lastpos() : 0;
393 inset().notifyCursorLeaves(*this);
397 pos() += lastpos() - lp + 1;
402 int Cursor::currentMode()
404 BOOST_ASSERT(!empty());
405 for (int i = depth() - 1; i >= 0; --i) {
406 int res = operator[](i).inset().currentMode();
407 if (res != Inset::UNDECIDED_MODE)
410 return Inset::TEXT_MODE;
414 void Cursor::getPos(int & x, int & y) const
416 Point p = bv_funcs::getPos(bv(), *this, boundary());
422 Row const & Cursor::textRow() const
424 ParagraphMetrics const & pm = bv().parMetrics(text(), pit());
425 BOOST_ASSERT(!pm.rows().empty());
426 return pm.getRow(pos(), boundary());
430 void Cursor::resetAnchor()
437 bool Cursor::posLeft()
446 bool Cursor::posRight()
448 if (pos() == lastpos())
455 CursorSlice Cursor::anchor() const
457 BOOST_ASSERT(anchor_.depth() >= depth());
458 CursorSlice normal = anchor_[depth() - 1];
459 if (depth() < anchor_.depth() && top() <= normal) {
460 // anchor is behind cursor -> move anchor behind the inset
467 CursorSlice Cursor::selBegin() const
471 return anchor() < top() ? anchor() : top();
475 CursorSlice Cursor::selEnd() const
479 return anchor() > top() ? anchor() : top();
483 DocIterator Cursor::selectionBegin() const
487 DocIterator di = (anchor() < top() ? anchor_ : *this);
493 DocIterator Cursor::selectionEnd() const
497 DocIterator di = (anchor() > top() ? anchor_ : *this);
498 if (di.depth() > depth()) {
506 void Cursor::setSelection()
509 // A selection with no contents is not a selection
511 #warning doesnt look ok
513 if (pit() == anchor().pit() && pos() == anchor().pos())
518 void Cursor::setSelection(DocIterator const & where, int n)
527 void Cursor::clearSelection()
535 void Cursor::setTargetX(int x)
538 textTargetOffset_ = 0;
542 int Cursor::x_target() const
548 void Cursor::clearTargetX()
551 textTargetOffset_ = 0;
555 void Cursor::updateTextTargetOffset()
560 textTargetOffset_ = x - x_target_;
564 void Cursor::info(odocstream & os) const
566 for (int i = 1, n = depth(); i < n; ++i) {
567 operator[](i).inset().infoize(os);
571 Inset const * inset = prevInset();
572 // prevInset() can return 0 in certain case.
574 prevInset()->infoize2(os);
576 // overwite old message
581 bool Cursor::selHandle(bool sel)
583 //lyxerr << "Cursor::selHandle" << endl;
584 if (sel == selection())
589 cap::saveSelection(*this);
594 std::ostream & operator<<(std::ostream & os, Cursor const & cur)
596 os << "\n cursor: | anchor:\n";
597 for (size_t i = 0, n = cur.depth(); i != n; ++i) {
598 os << " " << cur[i] << " | ";
599 if (i < cur.anchor_.depth())
600 os << cur.anchor_[i];
602 os << "-------------------------------";
605 for (size_t i = cur.depth(), n = cur.anchor_.depth(); i < n; ++i) {
606 os << "------------------------------- | " << cur.anchor_[i] << "\n";
608 os << " selection: " << cur.selection_
609 << " x_target: " << cur.x_target_ << endl;
616 ///////////////////////////////////////////////////////////////////
618 // The part below is the non-integrated rest of the original math
619 // cursor. This should be either generalized for texted or moved
620 // back to mathed (in most cases to InsetMathNest).
622 ///////////////////////////////////////////////////////////////////
624 #include "mathed/InsetMathChar.h"
625 #include "mathed/InsetMathGrid.h"
626 #include "mathed/InsetMathScript.h"
627 #include "mathed/InsetMathUnknown.h"
628 #include "mathed/MathFactory.h"
629 #include "mathed/MathStream.h"
630 #include "mathed/MathSupport.h"
635 //#define FILEDEBUG 1
638 bool Cursor::isInside(Inset const * p)
640 for (size_t i = 0; i != depth(); ++i)
641 if (&operator[](i).inset() == p)
647 void Cursor::leaveInset(Inset const & inset)
649 for (size_t i = 0; i != depth(); ++i) {
650 if (&operator[](i).inset() == &inset) {
658 bool Cursor::openable(MathAtom const & t) const
669 // we can't move into anything new during selection
670 if (depth() >= anchor_.depth())
672 if (!ptr_cmp(t.nucleus(), &anchor_[depth()].inset()))
679 void Cursor::setScreenPos(int x, int y)
682 bruteFind(*this, x, y, 0, bv().workWidth(), 0, bv().workHeight());
687 void Cursor::plainErase()
693 void Cursor::markInsert()
695 insert(char_type(0));
699 void Cursor::markErase()
705 void Cursor::plainInsert(MathAtom const & t)
707 cell().insert(pos(), t);
712 void Cursor::insert(docstring const & str)
714 for_each(str.begin(), str.end(),
715 boost::bind(static_cast<void(Cursor::*)(char_type)>
716 (&Cursor::insert), this, _1));
720 void Cursor::insert(char_type c)
722 //lyxerr << "Cursor::insert char '" << c << "'" << endl;
723 BOOST_ASSERT(!empty());
725 cap::selClearOrDel(*this);
726 insert(new InsetMathChar(c));
728 text()->insertChar(*this, c);
733 void Cursor::insert(MathAtom const & t)
735 //lyxerr << "Cursor::insert MathAtom '" << t << "'" << endl;
737 cap::selClearOrDel(*this);
742 void Cursor::insert(Inset * inset)
745 insert(MathAtom(inset));
747 text()->insertInset(*this, inset);
751 void Cursor::niceInsert(docstring const & t)
762 void Cursor::niceInsert(MathAtom const & t)
765 docstring const safe = cap::grabAndEraseSelection(*this);
767 // enter the new inset and move the contents of the selection if possible
770 // be careful here: don't use 'pushLeft(t)' as this we need to
771 // push the clone, not the original
772 pushLeft(*nextInset());
773 // We may not use niceInsert here (recursion)
781 void Cursor::insert(MathData const & ar)
785 cap::eraseSelection(*this);
786 cell().insert(pos(), ar);
791 bool Cursor::backspace()
793 autocorrect() = false;
796 cap::eraseSelection(*this);
801 // If empty cell, and not part of a big cell
802 if (lastpos() == 0 && inset().nargs() == 1) {
804 // Directly delete empty cell: [|[]] => [|]
810 // [|], can not delete from inside
822 InsetMathUnknown * p = activeMacro();
823 if (p->name().size() > 1) {
824 p->setName(p->name().substr(0, p->name().size() - 1));
829 if (pos() != 0 && prevAtom()->nargs() > 0) {
830 // let's require two backspaces for 'big stuff' and
831 // highlight on the first
845 autocorrect() = false;
850 cap::eraseSelection(*this);
854 // delete empty cells if possible
855 if (pos() == lastpos() && inset().idxDelete(idx()))
858 // special behaviour when in last position of cell
859 if (pos() == lastpos()) {
860 bool one_cell = inset().nargs() == 1;
861 if (one_cell && lastpos() == 0) {
863 // Directly delete empty cell: [|[]] => [|]
869 // [|], can not delete from inside
874 inset().idxGlue(idx());
878 // 'clever' UI hack: only erase large items if previously slected
879 if (pos() != lastpos() && nextAtom()->nargs() > 0) {
894 DocIterator save = *this;
895 FuncRequest cmd(selection() ? LFUN_UP_SELECT : LFUN_UP, docstring());
897 if (disp_.dispatched())
900 autocorrect() = false;
908 DocIterator save = *this;
909 FuncRequest cmd(selection() ? LFUN_DOWN_SELECT : LFUN_DOWN, docstring());
911 if (disp_.dispatched())
914 autocorrect() = false;
919 bool Cursor::macroModeClose()
923 InsetMathUnknown * p = activeMacro();
925 docstring const s = p->name();
929 // do nothing if the macro name is empty
933 // trigger updates of macros, at least, if no full
934 // updates take place anyway
935 updateFlags(Update::Force);
937 docstring const name = s.substr(1);
938 InsetMathNest * const in = inset().asInsetMath()->asNestInset();
939 if (in && in->interpretString(*this, s))
941 plainInsert(createInsetMath(name));
946 docstring Cursor::macroName()
948 return inMacroMode() ? activeMacro()->name() : docstring();
952 void Cursor::handleNest(MathAtom const & a, int c)
954 //lyxerr << "Cursor::handleNest: " << c << endl;
956 asArray(cap::grabAndEraseSelection(*this), t.nucleus()->cell(c));
959 pushLeft(*nextInset());
963 int Cursor::targetX() const
965 if (x_target() != -1)
974 int Cursor::textTargetOffset() const
976 return textTargetOffset_;
980 void Cursor::setTargetX()
989 bool Cursor::inMacroMode() const
995 InsetMathUnknown const * p = prevAtom()->asUnknownInset();
996 return p && !p->final();
1000 InsetMathUnknown * Cursor::activeMacro()
1002 return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
1006 void Cursor::pullArg()
1008 #ifdef WITH_WARNINGS
1011 MathData ar = cell();
1012 if (popLeft() && inMathed()) {
1014 cell().insert(pos(), ar);
1017 //formula()->mutateToText();
1022 void Cursor::touch()
1024 #ifdef WITH_WARNINGS
1028 DocIterator::const_iterator it = begin();
1029 DocIterator::const_iterator et = end();
1030 for ( ; it != et; ++it)
1036 void Cursor::normalize()
1038 if (idx() > lastidx()) {
1039 lyxerr << "this should not really happen - 1: "
1040 << idx() << ' ' << nargs()
1041 << " in: " << &inset() << endl;
1045 if (pos() > lastpos()) {
1046 lyxerr << "this should not really happen - 2: "
1047 << pos() << ' ' << lastpos() << " in idx: " << idx()
1049 odocstringstream os;
1050 WriteStream wi(os, false, true);
1051 inset().asInsetMath()->write(wi);
1052 lyxerr << to_utf8(os.str()) << endl;
1058 bool Cursor::upDownInMath(bool up)
1060 // Be warned: The 'logic' implemented in this function is highly
1061 // fragile. A distance of one pixel or a '<' vs '<=' _really
1062 // matters. So fiddle around with it only if you think you know
1063 // what you are doing!
1069 // check if we had something else in mind, if not, this is the future
1071 if (x_target_ == -1)
1073 else if (inset().asTextInset() && xo - textTargetOffset() != x_target()) {
1074 // In text mode inside the line (not left or right) possibly set a new target_x,
1075 // but only if we are somewhere else than the previous target-offset.
1077 // We want to keep the x-target on subsequent up/down movements
1078 // that cross beyond the end of short lines. Thus a special
1079 // handling when the cursor is at the end of line: Use the new
1080 // x-target only if the old one was before the end of line
1081 // or the old one was after the beginning of the line
1082 bool inRTL = isWithinRtlParagraph(*this);
1086 left = pos() == textRow().endpos();
1087 right = pos() == textRow().pos();
1089 left = pos() == textRow().pos();
1090 right = pos() == textRow().endpos();
1092 if ((!left && !right) ||
1093 (left && !right && xo < x_target_) ||
1094 (!left && right && x_target_ < xo))
1101 // try neigbouring script insets
1103 if (inMathed() && !selection()) {
1106 InsetMathScript const * p = prevAtom()->asScriptInset();
1107 if (p && p->has(up)) {
1109 push(*const_cast<InsetMathScript*>(p));
1110 idx() = p->idxOfScript(up);
1113 // we went in the right direction? Otherwise don't jump into the script
1117 if ((!up && y <= beforeDispY_) ||
1118 (up && y >= beforeDispY_))
1126 if (pos() != lastpos()) {
1127 InsetMathScript const * p = nextAtom()->asScriptInset();
1128 if (p && p->has(up)) {
1129 push(*const_cast<InsetMathScript*>(p));
1130 idx() = p->idxOfScript(up);
1133 // we went in the right direction? Otherwise don't jump into the script
1137 if ((!up && y <= beforeDispY_) ||
1138 (up && y >= beforeDispY_))
1146 // try to find an inset that knows better then we,
1147 if (inset().idxUpDown(*this, up)) {
1148 //lyxerr << "idxUpDown triggered" << endl;
1149 // try to find best position within this inset
1151 setCursor(bruteFind2(*this, xo, yo));
1155 // any improvement going just out of inset?
1156 if (popLeft() && inMathed()) {
1157 //lyxerr << "updown: popLeft succeeded" << endl;
1161 if (up ? ynew < beforeDispY_ : ynew > beforeDispY_)
1165 // no success, we are probably at the document top or bottom
1171 bool Cursor::upDownInText(bool up, bool & updateNeeded)
1173 BOOST_ASSERT(text());
1181 // update the targetX - this is here before the "return false"
1182 // to set a new target which can be used by InsetTexts above
1183 // if we cannot move up/down inside this inset anymore
1184 if (x_target_ == -1)
1186 else if (xo - textTargetOffset() != x_target() && depth() == beforeDispDepth_) {
1187 // In text mode inside the line (not left or right) possibly set a new target_x,
1188 // but only if we are somewhere else than the previous target-offset.
1190 // We want to keep the x-target on subsequent up/down movements
1191 // that cross beyond the end of short lines. Thus a special
1192 // handling when the cursor is at the end of line: Use the new
1193 // x-target only if the old one was before the end of line
1194 // or the old one was after the beginning of the line
1195 bool inRTL = isWithinRtlParagraph(*this);
1199 left = pos() == textRow().endpos();
1200 right = pos() == textRow().pos();
1202 left = pos() == textRow().pos();
1203 right = pos() == textRow().endpos();
1205 if ((!left && !right) ||
1206 (left && !right && xo < x_target_) ||
1207 (!left && right && x_target_ < xo))
1214 // first get the current line
1215 TextMetrics const & tm = bv_->textMetrics(text());
1216 ParagraphMetrics const & pm = tm.parMetrics(pit());
1218 if (pos() && boundary())
1219 row = pm.pos2row(pos() - 1);
1221 row = pm.pos2row(pos());
1223 // are we not at the start or end?
1225 if (pit() == 0 && row == 0)
1228 if (pit() + 1 >= int(text()->paragraphs().size()) &&
1229 row + 1 >= int(pm.rows().size()))
1233 // with and without selection are handled differently
1235 int yo = bv_funcs::getPos(bv(), *this, boundary()).y_;
1237 // To next/previous row
1239 text()->editXY(*this, xo, yo - textRow().ascent() - 1);
1241 text()->editXY(*this, xo, yo + textRow().descent() + 1);
1244 // This happens when you move out of an inset.
1245 // And to give the DEPM the possibility of doing
1246 // something we must provide it with two different
1248 Cursor dummy = *this;
1251 if (bv().checkDepm(dummy, old)) {
1252 updateNeeded = true;
1253 // Make sure that cur gets back whatever happened to dummy(Lgb)
1257 // if there is a selection, we stay out of any inset, and just jump to the right position:
1261 top().pos() = std::min(tm.x2pos(pit(), row - 1, xo), top().lastpos());
1262 } else if (pit() > 0) {
1264 ParagraphMetrics const & pmcur = bv_->parMetrics(text(), pit());
1265 top().pos() = std::min(tm.x2pos(pit(), pmcur.rows().size() - 1, xo), top().lastpos());
1268 if (row + 1 < int(pm.rows().size())) {
1269 top().pos() = std::min(tm.x2pos(pit(), row + 1, xo), top().lastpos());
1270 } else if (pit() + 1 < int(text()->paragraphs().size())) {
1272 top().pos() = std::min(tm.x2pos(pit(), 0, xo), top().lastpos());
1276 updateNeeded |= bv().checkDepm(*this, old);
1279 updateTextTargetOffset();
1284 void Cursor::handleFont(string const & font)
1286 LYXERR(Debug::DEBUG) << BOOST_CURRENT_FUNCTION << ": " << font << endl;
1290 safe = cap::grabAndEraseSelection(*this);
1293 if (lastpos() != 0) {
1294 // something left in the cell
1296 // cursor in first position
1298 } else if (pos() == lastpos()) {
1299 // cursor in last position
1302 // cursor in between. split cell
1303 MathData::iterator bt = cell().begin();
1304 MathAtom at = createInsetMath(from_utf8(font));
1305 at.nucleus()->cell(0) = MathData(bt, bt + pos());
1306 cell().erase(bt, bt + pos());
1311 // nothing left in the cell
1319 void Cursor::message(docstring const & msg) const
1321 theLyXFunc().setMessage(msg);
1325 void Cursor::errorMessage(docstring const & msg) const
1327 theLyXFunc().setErrorMessage(msg);
1331 docstring Cursor::selectionAsString(bool label) const
1337 Buffer const & buffer = *bv().buffer();
1338 ParagraphList const & pars = text()->paragraphs();
1340 // should be const ...
1341 pit_type startpit = selBegin().pit();
1342 pit_type endpit = selEnd().pit();
1343 size_t const startpos = selBegin().pos();
1344 size_t const endpos = selEnd().pos();
1346 if (startpit == endpit)
1347 return pars[startpit].asString(buffer, startpos, endpos, label);
1349 // First paragraph in selection
1350 docstring result = pars[startpit].
1351 asString(buffer, startpos, pars[startpit].size(), label)
1352 + parbreak(pars[startpit]);
1354 // The paragraphs in between (if any)
1355 for (pit_type pit = startpit + 1; pit != endpit; ++pit) {
1356 Paragraph const & par = pars[pit];
1357 result += par.asString(buffer, 0, par.size(), label)
1358 + parbreak(pars[pit]);
1361 // Last paragraph in selection
1362 result += pars[endpit].asString(buffer, 0, endpos, label);
1368 return cap::grabSelection(*this);
1374 docstring Cursor::currentState()
1377 odocstringstream os;
1383 return text()->currentState(*this);
1389 docstring Cursor::getPossibleLabel()
1391 return inMathed() ? from_ascii("eq:") : text()->getPossibleLabel(*this);
1395 Encoding const * Cursor::getEncoding() const
1402 // go up until first non-0 text is hit
1403 // (innermost text is 0 in mathed)
1404 for (s = depth() - 1; s >= 0; --s)
1405 if (operator[](s).text())
1407 CursorSlice const & sl = operator[](s);
1408 Text const & text = *sl.text();
1409 Font font = text.getPar(sl.pit()).getFont(
1410 bv().buffer()->params(), sl.pos(), outerFont(sl.pit(), text.paragraphs()));
1411 return font.language()->encoding();
1415 void Cursor::undispatched()
1417 disp_.dispatched(false);
1421 void Cursor::dispatched()
1423 disp_.dispatched(true);
1427 void Cursor::updateFlags(Update::flags f)
1433 void Cursor::noUpdate()
1435 disp_.update(Update::None);
1439 Font Cursor::getFont() const
1441 // HACK. far from being perfect...
1443 // go up until first non-0 text is hit
1444 // (innermost text is 0 in mathed)
1445 for (s = depth() - 1; s >= 0; --s)
1446 if (operator[](s).text())
1448 CursorSlice const & sl = operator[](s);
1449 Text const & text = *sl.text();
1450 Font font = text.getPar(sl.pit()).getFont(
1451 bv().buffer()->params(),
1453 outerFont(sl.pit(), text.paragraphs()));
1459 void Cursor::fixIfBroken()
1461 if (DocIterator::fixIfBroken()) {