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
8 * \author Dov Feldstern
10 * \author Stefan Schimanski
12 * Full author contact details are available in file CREDITS.
19 #include "BufferView.h"
20 #include "CoordCache.h"
22 #include "CutAndPaste.h"
23 #include "DispatchResult.h"
27 #include "FuncRequest.h"
29 #include "LyXFunc.h" // only for setMessage()
31 #include "paragraph_funcs.h"
32 #include "Paragraph.h"
33 #include "ParIterator.h"
36 #include "TextMetrics.h"
37 #include "TocBackend.h"
39 #include "support/lassert.h"
40 #include "support/debug.h"
41 #include "support/docstream.h"
43 #include "insets/InsetTabular.h"
44 #include "insets/InsetText.h"
46 #include "mathed/InsetMath.h"
47 #include "mathed/InsetMathBrace.h"
48 #include "mathed/InsetMathScript.h"
49 #include "mathed/MacroTable.h"
50 #include "mathed/MathData.h"
51 #include "mathed/MathMacro.h"
53 #include <boost/bind.hpp>
65 bool positionable(DocIterator const & cursor, DocIterator const & anchor)
67 // avoid deeper nested insets when selecting
68 if (cursor.depth() > anchor.depth())
71 // anchor might be deeper, should have same path then
72 for (size_t i = 0; i < cursor.depth(); ++i)
73 if (&cursor[i].inset() != &anchor[i].inset())
76 // position should be ok.
81 // Find position closest to (x, y) in cell given by iter.
82 // Used only in mathed
83 DocIterator bruteFind2(Cursor const & c, int x, int y)
85 double best_dist = numeric_limits<double>::max();
92 et.top().pos() = et.top().asInsetMath()->cell(et.top().idx()).size();
93 for (size_t i = 0;; ++i) {
96 Inset const * inset = &it.inset();
97 map<Inset const *, Geometry> const & data =
98 c.bv().coordCache().getInsets().getData();
99 map<Inset const *, Geometry>::const_iterator I = data.find(inset);
101 // FIXME: in the case where the inset is not in the cache, this
102 // means that no part of it is visible on screen. In this case
103 // we don't do elaborate search and we just return the forwarded
104 // DocIterator at its beginning.
105 if (I == data.end()) {
110 Point o = I->second.pos;
111 inset->cursorPos(c.bv(), it.top(), c.boundary(), xo, yo);
112 // Convert to absolute
115 double d = (x - xo) * (x - xo) + (y - yo) * (y - yo);
116 // '<=' in order to take the last possible position
117 // this is important for clicking behind \sum in e.g. '\sum_i a'
118 LYXERR(Debug::DEBUG, "i: " << i << " d: " << d
119 << " best: " << best_dist);
120 if (d <= best_dist) {
133 /// moves position closest to (x, y) in given box
134 bool bruteFind(Cursor & cursor,
135 int x, int y, int xlow, int xhigh, int ylow, int yhigh)
137 LASSERT(!cursor.empty(), return false);
138 Inset & inset = cursor[0].inset();
139 BufferView & bv = cursor.bv();
141 CoordCache::InnerParPosCache const & cache =
142 bv.coordCache().getParPos().find(cursor.bottom().text())->second;
143 // Get an iterator on the first paragraph in the cache
144 DocIterator it(inset);
145 it.push_back(CursorSlice(inset));
146 it.pit() = cache.begin()->first;
147 // Get an iterator after the last paragraph in the cache
148 DocIterator et(inset);
149 et.push_back(CursorSlice(inset));
150 et.pit() = boost::prior(cache.end())->first;
151 if (et.pit() >= et.lastpit())
152 et = doc_iterator_end(inset);
156 double best_dist = numeric_limits<double>::max();;
157 DocIterator best_cursor = et;
159 for ( ; it != et; it.forwardPos(true)) {
160 // avoid invalid nesting when selecting
161 if (!cursor.selection() || positionable(it, cursor.anchor_)) {
162 Point p = bv.getPos(it, false);
165 if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
166 double const dx = xo - x;
167 double const dy = yo - y;
168 double const d = dx * dx + dy * dy;
169 // '<=' in order to take the last possible position
170 // this is important for clicking behind \sum in e.g. '\sum_i a'
171 if (d <= best_dist) {
172 // lyxerr << "*" << endl;
180 if (best_cursor != et) {
181 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 = numeric_limits<double>::max();
214 DocIterator best_cursor = et;
216 for ( ; it != et; it.forwardPos()) {
217 // avoid invalid nesting when selecting
218 if (bv.cursorStatus(it) == CUR_INSIDE
219 && (!cur.selection() || positionable(it, cur.anchor_))) {
220 Point p = bv.getPos(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() != ERT_CODE
256 && par.ownerCode() != 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),
269 current_font(inherit_font)
273 void Cursor::reset(Inset & inset)
276 push_back(CursorSlice(inset));
277 anchor_ = doc_iterator_begin(inset);
285 // this (intentionally) does neither touch anchor nor selection status
286 void Cursor::setCursor(DocIterator const & cur)
288 DocIterator::operator=(cur);
292 void Cursor::dispatch(FuncRequest const & cmd0)
294 LYXERR(Debug::DEBUG, "cmd: " << cmd0 << '\n' << *this);
299 FuncRequest cmd = cmd0;
302 // store some values to be used inside of the handlers
303 beforeDispatchCursor_ = *this;
304 for (; depth(); pop(), boundary(false)) {
305 LYXERR(Debug::DEBUG, "Cursor::dispatch: cmd: "
306 << cmd0 << endl << *this);
307 LASSERT(pos() <= lastpos(), /**/);
308 LASSERT(idx() <= lastidx(), /**/);
309 LASSERT(pit() <= lastpit(), /**/);
311 // The common case is 'LFUN handled, need update', so make the
312 // LFUN handler's life easier by assuming this as default value.
313 // The handler can reset the update and val flags if necessary.
314 disp_.update(Update::FitCursor | Update::Force);
315 disp_.dispatched(true);
316 inset().dispatch(*this, cmd);
317 if (disp_.dispatched())
321 // it completely to get a 'bomb early' behaviour in case this
322 // object will be used again.
323 if (!disp_.dispatched()) {
324 LYXERR(Debug::DEBUG, "RESTORING OLD CURSOR!");
326 disp_.update(Update::None);
327 disp_.dispatched(false);
329 // restore the previous one because nested Cursor::dispatch calls
330 // are possible which would change it
331 beforeDispatchCursor_ = safe.beforeDispatchCursor_;
336 DispatchResult Cursor::result() const
342 BufferView & Cursor::bv() const
349 Buffer & Cursor::buffer() const
352 return bv_->buffer();
358 LASSERT(depth() >= 1, /**/);
363 void Cursor::push(Inset & p)
365 push_back(CursorSlice(p));
366 p.setBuffer(bv_->buffer());
370 void Cursor::pushBackward(Inset & p)
372 LASSERT(!empty(), /**/);
373 //lyxerr << "Entering inset " << t << " front" << endl;
379 bool Cursor::popBackward()
381 LASSERT(!empty(), /**/);
389 bool Cursor::popForward()
391 LASSERT(!empty(), /**/);
392 //lyxerr << "Leaving inset from in back" << endl;
393 const pos_type lp = (depth() > 1) ? (*this)[depth() - 2].lastpos() : 0;
397 pos() += lastpos() - lp + 1;
402 int Cursor::currentMode()
404 LASSERT(!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().getPos(*this, boundary());
422 Row const & Cursor::textRow() const
424 CursorSlice const & cs = innerTextSlice();
425 ParagraphMetrics const & pm = bv().parMetrics(cs.text(), cs.pit());
426 LASSERT(!pm.rows().empty(), /**/);
427 return pm.getRow(pos(), boundary());
431 void Cursor::resetAnchor()
438 bool Cursor::posBackward()
447 bool Cursor::posForward()
449 if (pos() == lastpos())
456 bool Cursor::posVisRight(bool skip_inset)
458 Cursor new_cur = *this; // where we will move to
459 pos_type left_pos; // position visually left of current cursor
460 pos_type right_pos; // position visually right of current cursor
461 bool new_pos_is_RTL; // is new position we're moving to RTL?
463 getSurroundingPos(left_pos, right_pos);
465 LYXERR(Debug::RTL, left_pos <<"|"<< right_pos << " (pos: "<< pos() <<")");
467 // Are we at an inset?
468 new_cur.pos() = right_pos;
469 new_cur.boundary(false);
471 text()->checkAndActivateInsetVisual(new_cur, right_pos>=pos(), false)) {
472 // we actually move the cursor at the end of this function, for now
473 // we just keep track of the new position in new_cur...
474 LYXERR(Debug::RTL, "entering inset at: " << new_cur.pos());
477 // Are we already at rightmost pos in row?
478 else if (text()->empty() || right_pos == -1) {
481 if (!new_cur.posVisToNewRow(false)) {
482 LYXERR(Debug::RTL, "not moving!");
486 // we actually move the cursor at the end of this function, for now
487 // just keep track of the new position in new_cur...
488 LYXERR(Debug::RTL, "right edge, moving: " << int(new_cur.pit()) << ","
489 << int(new_cur.pos()) << "," << (new_cur.boundary() ? 1 : 0));
492 // normal movement to the right
495 // Recall, if the cursor is at position 'x', that means *before*
496 // the character at position 'x'. In RTL, "before" means "to the
497 // right of", in LTR, "to the left of". So currently our situation
498 // is this: the position to our right is 'right_pos' (i.e., we're
499 // currently to the left of 'right_pos'). In order to move to the
500 // right, it depends whether or not the character at 'right_pos' is RTL.
501 new_pos_is_RTL = paragraph().getFontSettings(
502 bv().buffer().params(), right_pos).isVisibleRightToLeft();
503 // If the character at 'right_pos' *is* LTR, then in order to move to
504 // the right of it, we need to be *after* 'right_pos', i.e., move to
505 // position 'right_pos' + 1.
506 if (!new_pos_is_RTL) {
507 new_cur.pos() = right_pos + 1;
508 // set the boundary to true in two situations:
510 // 1. if new_pos is now lastpos (which means that we're moving
511 // right to the end of an LTR chunk which is at the end of an
513 new_cur.pos() == lastpos()
514 // 2. if the position *after* right_pos is RTL (we want to be
515 // *after* right_pos, not before right_pos + 1!)
516 || paragraph().getFontSettings(bv().buffer().params(),
517 new_cur.pos()).isVisibleRightToLeft()
519 new_cur.boundary(true);
520 else // set the boundary to false
521 new_cur.boundary(false);
523 // Otherwise (if the character at position 'right_pos' is RTL), then
524 // moving to the right of it is as easy as setting the new position
527 new_cur.pos() = right_pos;
528 new_cur.boundary(false);
533 bool moved = (new_cur.pos() != pos()
534 || new_cur.pit() != pit()
535 || new_cur.boundary() != boundary());
538 LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
539 << (new_cur.boundary() ? " (boundary)" : ""));
547 bool Cursor::posVisLeft(bool skip_inset)
549 Cursor new_cur = *this; // where we will move to
550 pos_type left_pos; // position visually left of current cursor
551 pos_type right_pos; // position visually right of current cursor
552 bool new_pos_is_RTL; // is new position we're moving to RTL?
554 getSurroundingPos(left_pos, right_pos);
556 LYXERR(Debug::RTL, left_pos <<"|"<< right_pos << " (pos: "<< pos() <<")");
558 // Are we at an inset?
559 new_cur.pos() = left_pos;
560 new_cur.boundary(false);
562 text()->checkAndActivateInsetVisual(new_cur, left_pos >= pos(), true)) {
563 // we actually move the cursor at the end of this function, for now
564 // we just keep track of the new position in new_cur...
565 LYXERR(Debug::RTL, "entering inset at: " << new_cur.pos());
568 // Are we already at leftmost pos in row?
569 else if (text()->empty() || left_pos == -1) {
572 if (!new_cur.posVisToNewRow(true)) {
573 LYXERR(Debug::RTL, "not moving!");
577 // we actually move the cursor at the end of this function, for now
578 // just keep track of the new position in new_cur...
579 LYXERR(Debug::RTL, "left edge, moving: " << int(new_cur.pit()) << ","
580 << int(new_cur.pos()) << "," << (new_cur.boundary() ? 1 : 0));
583 // normal movement to the left
586 // Recall, if the cursor is at position 'x', that means *before*
587 // the character at position 'x'. In RTL, "before" means "to the
588 // right of", in LTR, "to the left of". So currently our situation
589 // is this: the position to our left is 'left_pos' (i.e., we're
590 // currently to the right of 'left_pos'). In order to move to the
591 // left, it depends whether or not the character at 'left_pos' is RTL.
592 new_pos_is_RTL = paragraph().getFontSettings(
593 bv().buffer().params(), left_pos).isVisibleRightToLeft();
594 // If the character at 'left_pos' *is* RTL, then in order to move to
595 // the left of it, we need to be *after* 'left_pos', i.e., move to
596 // position 'left_pos' + 1.
597 if (new_pos_is_RTL) {
598 new_cur.pos() = left_pos + 1;
599 // set the boundary to true in two situations:
601 // 1. if new_pos is now lastpos (which means that we're moving left
602 // to the end of an RTL chunk which is at the end of an LTR
604 new_cur.pos() == lastpos()
605 // 2. if the position *after* left_pos is not RTL (we want to be
606 // *after* left_pos, not before left_pos + 1!)
607 || !paragraph().getFontSettings(bv().buffer().params(),
608 new_cur.pos()).isVisibleRightToLeft()
610 new_cur.boundary(true);
611 else // set the boundary to false
612 new_cur.boundary(false);
614 // Otherwise (if the character at position 'left_pos' is LTR), then
615 // moving to the left of it is as easy as setting the new position
618 new_cur.pos() = left_pos;
619 new_cur.boundary(false);
624 bool moved = (new_cur.pos() != pos()
625 || new_cur.pit() != pit()
626 || new_cur.boundary() != boundary());
629 LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
630 << (new_cur.boundary() ? " (boundary)" : ""));
638 void Cursor::getSurroundingPos(pos_type & left_pos, pos_type & right_pos)
640 // preparing bidi tables
641 Paragraph const & par = paragraph();
642 Buffer const & buf = buffer();
643 Row const & row = textRow();
645 bidi.computeTables(par, buf, row);
647 LYXERR(Debug::RTL, "bidi: " << row.pos() << "--" << row.endpos());
649 // The cursor is painted *before* the character at pos(), or, if 'boundary'
650 // is true, *after* the character at (pos() - 1). So we already have one
651 // known position around the cursor:
652 pos_type known_pos = boundary() ? pos() - 1 : pos();
654 // edge case: if we're at the end of the paragraph, things are a little
655 // different (because lastpos is a position which does not really "exist"
656 // --- there's no character there yet).
657 if (known_pos == lastpos()) {
658 if (par.isRTL(buf.params())) {
660 right_pos = bidi.vis2log(row.pos());
662 else { // LTR paragraph
664 left_pos = bidi.vis2log(row.endpos() - 1);
669 // Whether 'known_pos' is to the left or to the right of the cursor depends
670 // on whether it is an RTL or LTR character...
671 bool const cur_is_RTL =
672 par.getFontSettings(buf.params(), known_pos).isVisibleRightToLeft();
673 // ... in the following manner:
674 // For an RTL character, "before" means "to the right" and "after" means
675 // "to the left"; and for LTR, it's the reverse. So, 'known_pos' is to the
676 // right of the cursor if (RTL && boundary) or (!RTL && !boundary):
677 bool known_pos_on_right = (cur_is_RTL == boundary());
679 // So we now know one of the positions surrounding the cursor. Let's
680 // determine the other one:
682 if (known_pos_on_right) {
683 right_pos = known_pos;
684 // *visual* position of 'left_pos':
685 pos_type v_left_pos = bidi.log2vis(right_pos) - 1;
686 // If the position we just identified as 'left_pos' is a "skipped
687 // separator" (a separator which is at the logical end of a row,
688 // except for the last row in a paragraph; such separators are not
689 // painted, so they "are not really there"; note that in bidi text,
690 // such a separator could appear visually in the middle of a row),
691 // set 'left_pos' to the *next* position to the left.
692 if (bidi.inRange(v_left_pos)
693 && bidi.vis2log(v_left_pos) + 1 == row.endpos()
694 && row.endpos() < lastpos()
695 && par.isSeparator(bidi.vis2log(v_left_pos))) {
698 // calculate the logical position of 'left_pos', if in row
699 if (!bidi.inRange(v_left_pos))
702 left_pos = bidi.vis2log(v_left_pos);
703 // If the position we identified as 'right_pos' is a "skipped
704 // separator", set 'right_pos' to the *next* position to the right.
705 if (right_pos + 1 == row.endpos() && row.endpos() < lastpos()
706 && par.isSeparator(right_pos)) {
707 pos_type v_right_pos = bidi.log2vis(right_pos) + 1;
708 if (!bidi.inRange(v_right_pos))
711 right_pos = bidi.vis2log(v_right_pos);
714 else { // known_pos is on the left
715 left_pos = known_pos;
716 // *visual* position of 'right_pos'
717 pos_type v_right_pos = bidi.log2vis(left_pos) + 1;
718 // If the position we just identified as 'right_pos' is a "skipped
719 // separator", set 'right_pos' to the *next* position to the right.
720 if (bidi.inRange(v_right_pos)
721 && bidi.vis2log(v_right_pos) + 1 == row.endpos()
722 && row.endpos() < lastpos()
723 && par.isSeparator(bidi.vis2log(v_right_pos))) {
726 // calculate the logical position of 'right_pos', if in row
727 if (!bidi.inRange(v_right_pos))
730 right_pos = bidi.vis2log(v_right_pos);
731 // If the position we identified as 'left_pos' is a "skipped
732 // separator", set 'left_pos' to the *next* position to the left.
733 if (left_pos + 1 == row.endpos() && row.endpos() < lastpos()
734 && par.isSeparator(left_pos)) {
735 pos_type v_left_pos = bidi.log2vis(left_pos) - 1;
736 if (!bidi.inRange(v_left_pos))
739 left_pos = bidi.vis2log(v_left_pos);
746 bool Cursor::posVisToNewRow(bool movingLeft)
748 Paragraph const & par = paragraph();
749 Buffer const & buf = buffer();
750 Row const & row = textRow();
751 bool par_is_LTR = !par.isRTL(buf.params());
753 // Inside a table, determining whether to move to the next or previous row
754 // should be done based on the table's direction.
756 if (s >= 1 && (*this)[s].inset().asInsetTabular()) {
757 par_is_LTR = !(*this)[s].inset().asInsetTabular()->isRightToLeft(*this);
758 LYXERR(Debug::RTL, "Inside table! par_is_LTR=" << (par_is_LTR ? 1 : 0));
761 // if moving left in an LTR paragraph or moving right in an RTL one,
762 // move to previous row
763 if (par_is_LTR == movingLeft) {
764 if (row.pos() == 0) { // we're at first row in paragraph
765 if (pit() == 0) // no previous paragraph! don't move
767 // move to last pos in previous par
771 } else { // move to previous row in this par
772 pos() = row.pos() - 1; // this is guaranteed to be in previous row
776 // if moving left in an RTL paragraph or moving right in an LTR one,
779 if (row.endpos() == lastpos()) { // we're at last row in paragraph
780 if (pit() == lastpit()) // last paragraph! don't move
782 // move to first row in next par
786 } else { // move to next row in this par
787 pos() = row.endpos();
792 // make sure we're at left-/right-most pos in new row
793 posVisToRowExtremity(!movingLeft);
799 void Cursor::posVisToRowExtremity(bool left)
801 // prepare bidi tables
802 Paragraph const & par = paragraph();
803 Buffer const & buf = buffer();
804 Row const & row = textRow();
806 bidi.computeTables(par, buf, row);
808 LYXERR(Debug::RTL, "entering extremity: " << pit() << "," << pos() << ","
809 << (boundary() ? 1 : 0));
811 if (left) { // move to leftmost position
812 // if this is an RTL paragraph, and we're at the last row in the
813 // paragraph, move to lastpos
814 if (par.isRTL(buf.params()) && row.endpos() == lastpos())
817 pos() = bidi.vis2log(row.pos());
819 // Moving to the leftmost position in the row, the cursor should
820 // normally be placed to the *left* of the leftmost position.
821 // A very common exception, though, is if the leftmost character
822 // also happens to be the separator at the (logical) end of the row
823 // --- in this case, the separator is positioned beyond the left
824 // margin, and we don't want to move the cursor there (moving to
825 // the left of the separator is equivalent to moving to the next
826 // line). So, in this case we actually want to place the cursor
827 // to the *right* of the leftmost position (the separator).
828 // Another exception is if we're moving to the logically last
829 // position in the row, which is *not* a separator: this means
830 // that the entire row has no separators (if there were any, the
831 // row would have been broken there); and therefore in this case
832 // we also move to the *right* of the last position (this indicates
833 // to the user that there is no space after this position, and is
834 // consistent with the behavior in the middle of a row --- moving
835 // right or left moves to the next/previous character; if we were
836 // to move to the *left* of this position, that would simulate
837 // a separator which is not really there!).
838 // Finally, there is an exception to the previous exception: if
839 // this non-separator-but-last-position-in-row is an inset, then
840 // we *do* want to stay to the left of it anyway: this is the
841 // "boundary" which we simulate at insets.
843 bool right_of_pos = false; // do we want to be to the right of pos?
845 // as explained above, if at last pos in row, stay to the right
846 if ((pos() == row.endpos() - 1) && !par.isInset(pos()))
849 // Now we know if we want to be to the left or to the right of pos,
850 // let's make sure we are where we want to be.
851 bool new_pos_is_RTL =
852 par.getFontSettings(buf.params(), pos()).isVisibleRightToLeft();
854 if (new_pos_is_RTL == !right_of_pos) {
861 else { // move to rightmost position
862 // if this is an LTR paragraph, and we're at the last row in the
863 // paragraph, move to lastpos
864 if (!par.isRTL(buf.params()) && row.endpos() == lastpos())
867 pos() = bidi.vis2log(row.endpos() - 1);
869 // Moving to the rightmost position in the row, the cursor should
870 // normally be placed to the *right* of the rightmost position.
871 // A very common exception, though, is if the rightmost character
872 // also happens to be the separator at the (logical) end of the row
873 // --- in this case, the separator is positioned beyond the right
874 // margin, and we don't want to move the cursor there (moving to
875 // the right of the separator is equivalent to moving to the next
876 // line). So, in this case we actually want to place the cursor
877 // to the *left* of the rightmost position (the separator).
878 // Another exception is if we're moving to the logically last
879 // position in the row, which is *not* a separator: this means
880 // that the entire row has no separators (if there were any, the
881 // row would have been broken there); and therefore in this case
882 // we also move to the *left* of the last position (this indicates
883 // to the user that there is no space after this position, and is
884 // consistent with the behavior in the middle of a row --- moving
885 // right or left moves to the next/previous character; if we were
886 // to move to the *right* of this position, that would simulate
887 // a separator which is not really there!).
888 // Finally, there is an exception to the previous exception: if
889 // this non-separator-but-last-position-in-row is an inset, then
890 // we *do* want to stay to the right of it anyway: this is the
891 // "boundary" which we simulate at insets.
893 bool left_of_pos = false; // do we want to be to the left of pos?
895 // as explained above, if at last pos in row, stay to the left
896 if ((pos() == row.endpos() - 1) && !par.isInset(pos()))
899 // Now we know if we want to be to the left or to the right of pos,
900 // let's make sure we are where we want to be.
901 bool new_pos_is_RTL =
902 par.getFontSettings(buf.params(), pos()).isVisibleRightToLeft();
904 if (new_pos_is_RTL == left_of_pos) {
910 LYXERR(Debug::RTL, "leaving extremity: " << pit() << "," << pos() << ","
911 << (boundary() ? 1 : 0));
915 CursorSlice Cursor::anchor() const
917 LASSERT(anchor_.depth() >= depth(), /**/);
918 CursorSlice normal = anchor_[depth() - 1];
919 if (depth() < anchor_.depth() && top() <= normal) {
920 // anchor is behind cursor -> move anchor behind the inset
927 CursorSlice Cursor::selBegin() const
931 return anchor() < top() ? anchor() : top();
935 CursorSlice Cursor::selEnd() const
939 return anchor() > top() ? anchor() : top();
943 DocIterator Cursor::selectionBegin() const
947 DocIterator di = (anchor() < top() ? anchor_ : *this);
953 DocIterator Cursor::selectionEnd() const
957 DocIterator di = (anchor() > top() ? anchor_ : *this);
958 if (di.depth() > depth()) {
966 void Cursor::setSelection()
969 // A selection with no contents is not a selection
970 // FIXME: doesnt look ok
971 if (idx() == anchor().idx() &&
972 pit() == anchor().pit() &&
973 pos() == anchor().pos())
978 void Cursor::setSelection(DocIterator const & where, int n)
987 void Cursor::clearSelection()
995 void Cursor::setTargetX(int x)
998 textTargetOffset_ = 0;
1002 int Cursor::x_target() const
1008 void Cursor::clearTargetX()
1011 textTargetOffset_ = 0;
1015 void Cursor::updateTextTargetOffset()
1020 textTargetOffset_ = x - x_target_;
1024 void Cursor::info(odocstream & os) const
1026 for (int i = 1, n = depth(); i < n; ++i) {
1027 operator[](i).inset().infoize(os);
1031 Inset const * inset = prevInset();
1032 // prevInset() can return 0 in certain case.
1034 prevInset()->infoize2(os);
1036 // overwite old message
1041 bool Cursor::selHandle(bool sel)
1043 //lyxerr << "Cursor::selHandle" << endl;
1046 if (sel == selection())
1050 cap::saveSelection(*this);
1058 ostream & operator<<(ostream & os, Cursor const & cur)
1060 os << "\n cursor: | anchor:\n";
1061 for (size_t i = 0, n = cur.depth(); i != n; ++i) {
1062 os << " " << cur[i] << " | ";
1063 if (i < cur.anchor_.depth())
1064 os << cur.anchor_[i];
1066 os << "-------------------------------";
1069 for (size_t i = cur.depth(), n = cur.anchor_.depth(); i < n; ++i) {
1070 os << "------------------------------- | " << cur.anchor_[i] << "\n";
1072 os << " selection: " << cur.selection_
1073 << " x_target: " << cur.x_target_ << endl;
1078 LyXErr & operator<<(LyXErr & os, Cursor const & cur)
1088 ///////////////////////////////////////////////////////////////////
1091 // The part below is the non-integrated rest of the original math
1092 // cursor. This should be either generalized for texted or moved
1093 // back to mathed (in most cases to InsetMathNest).
1095 ///////////////////////////////////////////////////////////////////
1097 #include "mathed/InsetMathChar.h"
1098 #include "mathed/InsetMathGrid.h"
1099 #include "mathed/InsetMathScript.h"
1100 #include "mathed/InsetMathUnknown.h"
1101 #include "mathed/MathFactory.h"
1102 #include "mathed/MathStream.h"
1103 #include "mathed/MathSupport.h"
1108 //#define FILEDEBUG 1
1111 bool Cursor::isInside(Inset const * p) const
1113 for (size_t i = 0; i != depth(); ++i)
1114 if (&operator[](i).inset() == p)
1120 void Cursor::leaveInset(Inset const & inset)
1122 for (size_t i = 0; i != depth(); ++i) {
1123 if (&operator[](i).inset() == &inset) {
1131 bool Cursor::openable(MathAtom const & t) const
1142 // we can't move into anything new during selection
1143 if (depth() >= anchor_.depth())
1145 if (t.nucleus() != &anchor_[depth()].inset())
1152 void Cursor::setScreenPos(int x, int /*y*/)
1155 //bruteFind(*this, x, y, 0, bv().workWidth(), 0, bv().workHeight());
1160 void Cursor::plainErase()
1162 cell().erase(pos());
1166 void Cursor::markInsert()
1168 insert(char_type(0));
1172 void Cursor::markErase()
1174 cell().erase(pos());
1178 void Cursor::plainInsert(MathAtom const & t)
1180 cell().insert(pos(), t);
1182 inset().setBuffer(bv_->buffer());
1187 void Cursor::insert(docstring const & str)
1189 for_each(str.begin(), str.end(),
1190 boost::bind(static_cast<void(Cursor::*)(char_type)>
1191 (&Cursor::insert), this, _1));
1195 void Cursor::insert(char_type c)
1197 //lyxerr << "Cursor::insert char '" << c << "'" << endl;
1198 LASSERT(!empty(), /**/);
1200 cap::selClearOrDel(*this);
1201 insert(new InsetMathChar(c));
1203 text()->insertChar(*this, c);
1208 void Cursor::insert(MathAtom const & t)
1210 //lyxerr << "Cursor::insert MathAtom '" << t << "'" << endl;
1212 cap::selClearOrDel(*this);
1217 void Cursor::insert(Inset * inset0)
1219 LASSERT(inset0, /**/);
1221 insert(MathAtom(inset0));
1223 text()->insertInset(*this, inset0);
1224 inset0->setBuffer(bv_->buffer());
1230 void Cursor::niceInsert(docstring const & t)
1241 void Cursor::niceInsert(MathAtom const & t)
1244 docstring const safe = cap::grabAndEraseSelection(*this);
1246 // enter the new inset and move the contents of the selection if possible
1247 if (t->isActive()) {
1249 // be careful here: don't use 'pushBackward(t)' as this we need to
1250 // push the clone, not the original
1251 pushBackward(*nextInset());
1252 // We may not use niceInsert here (recursion)
1260 void Cursor::insert(MathData const & ar)
1264 cap::eraseSelection(*this);
1265 cell().insert(pos(), ar);
1270 bool Cursor::backspace()
1272 autocorrect() = false;
1275 cap::eraseSelection(*this);
1280 // If empty cell, and not part of a big cell
1281 if (lastpos() == 0 && inset().nargs() == 1) {
1283 // Directly delete empty cell: [|[]] => [|]
1289 // [|], can not delete from inside
1300 if (inMacroMode()) {
1301 InsetMathUnknown * p = activeMacro();
1302 if (p->name().size() > 1) {
1303 p->setName(p->name().substr(0, p->name().size() - 1));
1308 if (pos() != 0 && prevAtom()->nargs() > 0) {
1309 // let's require two backspaces for 'big stuff' and
1310 // highlight on the first
1322 bool Cursor::erase()
1324 autocorrect() = false;
1329 cap::eraseSelection(*this);
1333 // delete empty cells if possible
1334 if (pos() == lastpos() && inset().idxDelete(idx()))
1337 // special behaviour when in last position of cell
1338 if (pos() == lastpos()) {
1339 bool one_cell = inset().nargs() == 1;
1340 if (one_cell && lastpos() == 0) {
1342 // Directly delete empty cell: [|[]] => [|]
1348 // [|], can not delete from inside
1353 inset().idxGlue(idx());
1357 // 'clever' UI hack: only erase large items if previously slected
1358 if (pos() != lastpos() && nextAtom()->nargs() > 0) {
1373 DocIterator save = *this;
1374 FuncRequest cmd(selection() ? LFUN_UP_SELECT : LFUN_UP, docstring());
1375 this->dispatch(cmd);
1376 if (disp_.dispatched())
1379 autocorrect() = false;
1387 DocIterator save = *this;
1388 FuncRequest cmd(selection() ? LFUN_DOWN_SELECT : LFUN_DOWN, docstring());
1389 this->dispatch(cmd);
1390 if (disp_.dispatched())
1393 autocorrect() = false;
1398 bool Cursor::macroModeClose()
1402 InsetMathUnknown * p = activeMacro();
1405 asArray(p->selection(), selection);
1406 docstring const s = p->name();
1408 cell().erase(pos());
1410 // do nothing if the macro name is empty
1414 // trigger updates of macros, at least, if no full
1415 // updates take place anyway
1416 updateFlags(Update::Force);
1418 docstring const name = s.substr(1);
1419 InsetMathNest * const in = inset().asInsetMath()->asNestInset();
1420 if (in && in->interpretString(*this, s))
1422 MathAtom atom = createInsetMath(name);
1424 // try to put argument into macro, if we just inserted a macro
1425 bool macroArg = false;
1426 MathMacro * atomAsMacro = atom.nucleus()->asMacro();
1428 // macros here are still unfolded (in init mode in fact). So
1429 // we have to resolve the macro here manually and check its arity
1430 // to put the selection behind it if arity > 0.
1431 MacroData const * data = buffer().getMacro(atomAsMacro->name());
1432 if (selection.size() > 0 && data && data->numargs() - data->optionals() > 0) {
1434 atomAsMacro->setDisplayMode(MathMacro::DISPLAY_INTERACTIVE_INIT, 1);
1436 // non-greedy case. Do not touch the arguments behind
1437 atomAsMacro->setDisplayMode(MathMacro::DISPLAY_INTERACTIVE_INIT, 0);
1440 // insert remembered selection into first argument of a non-macro
1441 else if (atom.nucleus()->nargs() > 0)
1442 atom.nucleus()->cell(0).append(selection);
1446 // finally put the macro argument behind, if needed
1448 if (selection.size() > 1)
1449 plainInsert(MathAtom(new InsetMathBrace(selection)));
1458 docstring Cursor::macroName()
1460 return inMacroMode() ? activeMacro()->name() : docstring();
1464 void Cursor::handleNest(MathAtom const & a, int c)
1466 //lyxerr << "Cursor::handleNest: " << c << endl;
1468 asArray(cap::grabAndEraseSelection(*this), t.nucleus()->cell(c));
1471 pushBackward(*nextInset());
1475 int Cursor::targetX() const
1477 if (x_target() != -1)
1486 int Cursor::textTargetOffset() const
1488 return textTargetOffset_;
1492 void Cursor::setTargetX()
1501 bool Cursor::inMacroMode() const
1507 InsetMathUnknown const * p = prevAtom()->asUnknownInset();
1508 return p && !p->final();
1512 InsetMathUnknown * Cursor::activeMacro()
1514 return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
1518 InsetMathUnknown const * Cursor::activeMacro() const
1520 return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
1524 void Cursor::pullArg()
1527 MathData ar = cell();
1528 if (popBackward() && inMathed()) {
1530 cell().insert(pos(), ar);
1533 //formula()->mutateToText();
1538 void Cursor::touch()
1542 DocIterator::const_iterator it = begin();
1543 DocIterator::const_iterator et = end();
1544 for ( ; it != et; ++it)
1550 void Cursor::normalize()
1552 if (idx() > lastidx()) {
1553 lyxerr << "this should not really happen - 1: "
1554 << idx() << ' ' << nargs()
1555 << " in: " << &inset() << endl;
1559 if (pos() > lastpos()) {
1560 lyxerr << "this should not really happen - 2: "
1561 << pos() << ' ' << lastpos() << " in idx: " << idx()
1563 odocstringstream os;
1564 WriteStream wi(os, false, true, false);
1565 inset().asInsetMath()->write(wi);
1566 lyxerr << to_utf8(os.str()) << endl;
1572 bool Cursor::upDownInMath(bool up)
1574 // Be warned: The 'logic' implemented in this function is highly
1575 // fragile. A distance of one pixel or a '<' vs '<=' _really
1576 // matters. So fiddle around with it only if you think you know
1577 // what you are doing!
1581 xo = theLyXFunc().cursorBeforeDispatchX();
1583 // check if we had something else in mind, if not, this is the future
1585 if (x_target_ == -1)
1587 else if (inset().asInsetText() && xo - textTargetOffset() != x_target()) {
1588 // In text mode inside the line (not left or right) possibly set a new target_x,
1589 // but only if we are somewhere else than the previous target-offset.
1591 // We want to keep the x-target on subsequent up/down movements
1592 // that cross beyond the end of short lines. Thus a special
1593 // handling when the cursor is at the end of line: Use the new
1594 // x-target only if the old one was before the end of line
1595 // or the old one was after the beginning of the line
1596 bool inRTL = isWithinRtlParagraph(*this);
1600 left = pos() == textRow().endpos();
1601 right = pos() == textRow().pos();
1603 left = pos() == textRow().pos();
1604 right = pos() == textRow().endpos();
1606 if ((!left && !right) ||
1607 (left && !right && xo < x_target_) ||
1608 (!left && right && x_target_ < xo))
1615 // try neigbouring script insets
1617 if (inMathed() && !selection()) {
1620 InsetMathScript const * p = prevAtom()->asScriptInset();
1621 if (p && p->has(up)) {
1623 push(*const_cast<InsetMathScript*>(p));
1624 idx() = p->idxOfScript(up);
1627 // we went in the right direction? Otherwise don't jump into the script
1631 int oy = theLyXFunc().cursorBeforeDispatchY();
1632 if ((!up && y <= oy) ||
1641 if (pos() != lastpos()) {
1642 InsetMathScript const * p = nextAtom()->asScriptInset();
1643 if (p && p->has(up)) {
1644 push(*const_cast<InsetMathScript*>(p));
1645 idx() = p->idxOfScript(up);
1648 // we went in the right direction? Otherwise don't jump into the script
1652 int oy = theLyXFunc().cursorBeforeDispatchY();
1653 if ((!up && y <= oy) ||
1662 // try to find an inset that knows better then we,
1663 if (inset().idxUpDown(*this, up)) {
1664 //lyxerr << "idxUpDown triggered" << endl;
1665 // try to find best position within this inset
1667 setCursor(bruteFind2(*this, xo, yo));
1671 // any improvement going just out of inset?
1672 if (popBackward() && inMathed()) {
1673 //lyxerr << "updown: popBackward succeeded" << endl;
1676 int yold = theLyXFunc().cursorBeforeDispatchY();
1678 if (up ? ynew < yold : ynew > yold)
1682 // no success, we are probably at the document top or bottom
1688 bool Cursor::upDownInText(bool up, bool & updateNeeded)
1690 LASSERT(text(), /**/);
1696 xo = theLyXFunc().cursorBeforeDispatchX();
1698 // update the targetX - this is here before the "return false"
1699 // to set a new target which can be used by InsetTexts above
1700 // if we cannot move up/down inside this inset anymore
1701 if (x_target_ == -1)
1703 else if (xo - textTargetOffset() != x_target() &&
1704 depth() == beforeDispatchCursor_.depth()) {
1705 // In text mode inside the line (not left or right) possibly set a new target_x,
1706 // but only if we are somewhere else than the previous target-offset.
1708 // We want to keep the x-target on subsequent up/down movements
1709 // that cross beyond the end of short lines. Thus a special
1710 // handling when the cursor is at the end of line: Use the new
1711 // x-target only if the old one was before the end of line
1712 // or the old one was after the beginning of the line
1713 bool inRTL = isWithinRtlParagraph(*this);
1717 left = pos() == textRow().endpos();
1718 right = pos() == textRow().pos();
1720 left = pos() == textRow().pos();
1721 right = pos() == textRow().endpos();
1723 if ((!left && !right) ||
1724 (left && !right && xo < x_target_) ||
1725 (!left && right && x_target_ < xo))
1732 // first get the current line
1733 TextMetrics & tm = bv_->textMetrics(text());
1734 ParagraphMetrics const & pm = tm.parMetrics(pit());
1736 if (pos() && boundary())
1737 row = pm.pos2row(pos() - 1);
1739 row = pm.pos2row(pos());
1741 // are we not at the start or end?
1743 if (pit() == 0 && row == 0)
1746 if (pit() + 1 >= int(text()->paragraphs().size()) &&
1747 row + 1 >= int(pm.rows().size()))
1751 // with and without selection are handled differently
1753 int yo = bv().getPos(*this, boundary()).y_;
1755 // To next/previous row
1757 tm.editXY(*this, xo, yo - textRow().ascent() - 1);
1759 tm.editXY(*this, xo, yo + textRow().descent() + 1);
1762 // This happens when you move out of an inset.
1763 // And to give the DEPM the possibility of doing
1764 // something we must provide it with two different
1766 Cursor dummy = *this;
1769 if (bv().checkDepm(dummy, old)) {
1770 updateNeeded = true;
1771 // Make sure that cur gets back whatever happened to dummy(Lgb)
1775 // if there is a selection, we stay out of any inset, and just jump to the right position:
1779 top().pos() = min(tm.x2pos(pit(), row - 1, xo), top().lastpos());
1780 } else if (pit() > 0) {
1782 TextMetrics & tm = bv_->textMetrics(text());
1783 if (!tm.contains(pit()))
1784 tm.newParMetricsUp();
1785 ParagraphMetrics const & pmcur = tm.parMetrics(pit());
1786 top().pos() = min(tm.x2pos(pit(), pmcur.rows().size() - 1, xo), top().lastpos());
1789 if (row + 1 < int(pm.rows().size())) {
1790 top().pos() = min(tm.x2pos(pit(), row + 1, xo), top().lastpos());
1791 } else if (pit() + 1 < int(text()->paragraphs().size())) {
1793 TextMetrics & tm = bv_->textMetrics(text());
1794 if (!tm.contains(pit()))
1795 tm.newParMetricsDown();
1796 top().pos() = min(tm.x2pos(pit(), 0, xo), top().lastpos());
1800 updateNeeded |= bv().checkDepm(*this, old);
1803 updateTextTargetOffset();
1808 void Cursor::handleFont(string const & font)
1810 LYXERR(Debug::DEBUG, font);
1814 safe = cap::grabAndEraseSelection(*this);
1817 if (lastpos() != 0) {
1818 // something left in the cell
1820 // cursor in first position
1822 } else if (pos() == lastpos()) {
1823 // cursor in last position
1826 // cursor in between. split cell
1827 MathData::iterator bt = cell().begin();
1828 MathAtom at = createInsetMath(from_utf8(font));
1829 at.nucleus()->cell(0) = MathData(bt, bt + pos());
1830 cell().erase(bt, bt + pos());
1835 // nothing left in the cell
1843 void Cursor::message(docstring const & msg) const
1845 theLyXFunc().setMessage(msg);
1849 void Cursor::errorMessage(docstring const & msg) const
1851 theLyXFunc().setErrorMessage(msg);
1855 docstring Cursor::selectionAsString(bool with_label) const
1860 int const label = with_label
1861 ? AS_STR_LABEL | AS_STR_INSETS : AS_STR_INSETS;
1864 idx_type const startidx = selBegin().idx();
1865 idx_type const endidx = selEnd().idx();
1866 if (startidx != endidx) {
1867 // multicell selection
1868 InsetTabular * table = inset().asInsetTabular();
1869 LASSERT(table, return docstring());
1870 return table->asString(startidx, endidx);
1873 ParagraphList const & pars = text()->paragraphs();
1875 pit_type const startpit = selBegin().pit();
1876 pit_type const endpit = selEnd().pit();
1877 size_t const startpos = selBegin().pos();
1878 size_t const endpos = selEnd().pos();
1880 if (startpit == endpit)
1881 return pars[startpit].asString(startpos, endpos, label);
1883 // First paragraph in selection
1884 docstring result = pars[startpit].
1885 asString(startpos, pars[startpit].size(), label)
1886 + parbreak(pars[startpit]);
1888 // The paragraphs in between (if any)
1889 for (pit_type pit = startpit + 1; pit != endpit; ++pit) {
1890 Paragraph const & par = pars[pit];
1891 result += par.asString(0, par.size(), label)
1892 + parbreak(pars[pit]);
1895 // Last paragraph in selection
1896 result += pars[endpit].asString(0, endpos, label);
1902 return cap::grabSelection(*this);
1908 docstring Cursor::currentState() const
1911 odocstringstream os;
1917 return text()->currentState(*this);
1923 docstring Cursor::getPossibleLabel() const
1925 return inMathed() ? from_ascii("eq:") : text()->getPossibleLabel(*this);
1929 Encoding const * Cursor::getEncoding() const
1933 CursorSlice const & sl = innerTextSlice();
1934 Text const & text = *sl.text();
1935 Font font = text.getPar(sl.pit()).getFont(
1936 bv().buffer().params(), sl.pos(), outerFont(sl.pit(), text.paragraphs()));
1937 return font.language()->encoding();
1941 void Cursor::undispatched()
1943 disp_.dispatched(false);
1947 void Cursor::dispatched()
1949 disp_.dispatched(true);
1953 void Cursor::updateFlags(Update::flags f)
1959 void Cursor::noUpdate()
1961 disp_.update(Update::None);
1965 Font Cursor::getFont() const
1967 // The logic here should more or less match to the Cursor::setCurrentFont
1968 // logic, i.e. the cursor height should give a hint what will happen
1969 // if a character is entered.
1971 // HACK. far from being perfect...
1973 CursorSlice const & sl = innerTextSlice();
1974 Text const & text = *sl.text();
1975 Paragraph const & par = text.getPar(sl.pit());
1977 // on boundary, so we are really at the character before
1978 pos_type pos = sl.pos();
1979 if (pos > 0 && boundary())
1982 // on space? Take the font before (only for RTL boundary stay)
1984 TextMetrics const & tm = bv().textMetrics(&text);
1985 if (pos == sl.lastpos()
1986 || (par.isSeparator(pos)
1987 && !tm.isRTLBoundary(sl.pit(), pos)))
1991 // get font at the position
1992 Font font = par.getFont(bv().buffer().params(), pos,
1993 outerFont(sl.pit(), text.paragraphs()));
1999 bool Cursor::fixIfBroken()
2001 if (DocIterator::fixIfBroken()) {
2009 bool notifyCursorLeaves(Cursor const & old, Cursor & cur)
2011 // find inset in common
2013 for (i = 0; i < old.depth() && i < cur.depth(); ++i) {
2014 if (&old[i].inset() != &cur[i].inset())
2018 // update words if we just moved to another paragraph
2019 if (i == old.depth() && i == cur.depth()
2020 && !cur.buffer().isClean()
2021 && cur.inTexted() && old.inTexted()
2022 && cur.pit() != old.pit()) {
2023 old.paragraph().updateWords(old.top());
2027 // notify everything on top of the common part in old cursor,
2028 // but stop if the inset claims the cursor to be invalid now
2029 for (; i < old.depth(); ++i) {
2030 Cursor insetPos = old;
2032 if (old[i].inset().notifyCursorLeaves(insetPos, cur))
2040 void Cursor::setCurrentFont()
2042 CursorSlice const & cs = innerTextSlice();
2043 Paragraph const & par = cs.paragraph();
2044 pos_type cpit = cs.pit();
2045 pos_type cpos = cs.pos();
2046 Text const & ctext = *cs.text();
2047 TextMetrics const & tm = bv().textMetrics(&ctext);
2049 // are we behind previous char in fact? -> go to that char
2050 if (cpos > 0 && boundary())
2053 // find position to take the font from
2055 // paragraph end? -> font of last char
2056 if (cpos == lastpos())
2058 // on space? -> look at the words in front of space
2059 else if (cpos > 0 && par.isSeparator(cpos)) {
2060 // abc| def -> font of c
2061 // abc |[WERBEH], i.e. boundary==true -> font of c
2062 // abc [WERBEH]| def, font of the space
2063 if (!tm.isRTLBoundary(cpit, cpos))
2069 BufferParams const & bufparams = buffer().params();
2070 current_font = par.getFontSettings(bufparams, cpos);
2071 real_current_font = tm.displayFont(cpit, cpos);
2073 // special case for paragraph end
2074 if (cs.pos() == lastpos()
2075 && tm.isRTLBoundary(cpit, cs.pos())
2077 Language const * lang = par.getParLanguage(bufparams);
2078 current_font.setLanguage(lang);
2079 current_font.fontInfo().setNumber(FONT_OFF);
2080 real_current_font.setLanguage(lang);
2081 real_current_font.fontInfo().setNumber(FONT_OFF);
2086 bool Cursor::textUndo()
2088 DocIterator dit = *this;
2089 // Undo::textUndo() will modify dit.
2090 if (!bv_->buffer().undo().textUndo(dit))
2100 bool Cursor::textRedo()
2102 DocIterator dit = *this;
2103 // Undo::textRedo() will modify dit.
2104 if (!bv_->buffer().undo().textRedo(dit))
2114 void Cursor::finishUndo() const
2116 bv_->buffer().undo().finishUndo();
2120 void Cursor::recordUndo(UndoKind kind, pit_type from, pit_type to) const
2122 bv_->buffer().undo().recordUndo(*this, kind, from, to);
2126 void Cursor::recordUndo(UndoKind kind, pit_type from) const
2128 bv_->buffer().undo().recordUndo(*this, kind, from);
2132 void Cursor::recordUndo(UndoKind kind) const
2134 bv_->buffer().undo().recordUndo(*this, kind);
2138 void Cursor::recordUndoInset(UndoKind kind) const
2140 bv_->buffer().undo().recordUndoInset(*this, kind);
2144 void Cursor::recordUndoFullDocument() const
2146 bv_->buffer().undo().recordUndoFullDocument(*this);
2150 void Cursor::recordUndoSelection() const
2153 if (cap::multipleCellsSelected(*this))
2158 bv_->buffer().undo().recordUndo(*this, ATOMIC_UNDO,
2159 selBegin().pit(), selEnd().pit());
2163 void Cursor::checkBufferStructure()
2165 if (paragraph().layout().toclevel == Layout::NOT_IN_TOC)
2167 Buffer const * master = buffer().masterBuffer();
2168 master->tocBackend().updateItem(ParConstIterator(*this));
2169 master->structureChanged();