#include <config.h>
-#include "Bidi.h"
#include "Buffer.h"
#include "BufferView.h"
#include "CoordCache.h"
namespace {
-bool positionable(DocIterator const & cursor, DocIterator const & anchor)
-{
- // avoid deeper nested insets when selecting
- if (cursor.depth() > anchor.depth())
- return false;
-
- // anchor might be deeper, should have same path then
- for (size_t i = 0; i < cursor.depth(); ++i)
- if (&cursor[i].inset() != &anchor[i].inset())
- return false;
-
- // position should be ok.
- return true;
-}
-
-
// Find position closest to (x, y) in cell given by iter.
// Used only in mathed
-DocIterator bruteFind2(Cursor const & c, int x, int y)
+DocIterator bruteFind(Cursor const & c, int x, int y)
{
double best_dist = numeric_limits<double>::max();
DocIterator result;
DocIterator it = c;
- it.top().pos() = 0;
+ it.pos() = 0;
DocIterator et = c;
- et.top().pos() = et.top().asInsetMath()->cell(et.top().idx()).size();
+ et.pos() = et.lastpos();
for (size_t i = 0;; ++i) {
int xo;
int yo;
Inset const * inset = &it.inset();
- CoordCache const & cache = c.bv().coordCache();
+ CoordCache::Insets const & insetCache = c.bv().coordCache().getInsets();
// FIXME: in the case where the inset is not in the cache, this
// means that no part of it is visible on screen. In this case
// we don't do elaborate search and we just return the forwarded
// DocIterator at its beginning.
- if (!cache.getInsets().has(inset)) {
+ if (!insetCache.has(inset)) {
it.top().pos() = 0;
return it;
}
- Point const o = cache.getInsets().xy(inset);
+ Point const o = insetCache.xy(inset);
inset->cursorPos(c.bv(), it.top(), c.boundary(), xo, yo);
// Convert to absolute
xo += o.x_;
}
-/*
-/// moves position closest to (x, y) in given box
-bool bruteFind(Cursor & cursor,
- int x, int y, int xlow, int xhigh, int ylow, int yhigh)
-{
- LASSERT(!cursor.empty(), return false);
- Inset & inset = cursor[0].inset();
- BufferView & bv = cursor.bv();
-
- CoordCache::InnerParPosCache const & cache =
- bv.coordCache().getParPos().find(cursor.bottom().text())->second;
- // Get an iterator on the first paragraph in the cache
- DocIterator it(inset);
- it.push_back(CursorSlice(inset));
- it.pit() = cache.begin()->first;
- // Get an iterator after the last paragraph in the cache
- DocIterator et(inset);
- et.push_back(CursorSlice(inset));
- et.pit() = boost::prior(cache.end())->first;
- if (et.pit() >= et.lastpit())
- et = doc_iterator_end(inset);
- else
- ++et.pit();
-
- double best_dist = numeric_limits<double>::max();
- DocIterator best_cursor = et;
-
- for ( ; it != et; it.forwardPos(true)) {
- // avoid invalid nesting when selecting
- if (!cursor.selection() || positionable(it, cursor.anchor_)) {
- Point p = bv.getPos(it, false);
- int xo = p.x_;
- int yo = p.y_;
- if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
- double const dx = xo - x;
- double const dy = yo - y;
- double const d = dx * dx + dy * dy;
- // '<=' in order to take the last possible position
- // this is important for clicking behind \sum in e.g. '\sum_i a'
- if (d <= best_dist) {
- // lyxerr << "*" << endl;
- best_dist = d;
- best_cursor = it;
- }
- }
- }
- }
-
- if (best_cursor != et) {
- cursor.setCursor(best_cursor);
- return true;
- }
-
- return false;
-}
-*/
-
-/*
-/// moves position closest to (x, y) in given box
-bool bruteFind3(Cursor & cur, int x, int y, bool up)
-{
- BufferView & bv = cur.bv();
- int ylow = up ? 0 : y + 1;
- int yhigh = up ? y - 1 : bv.workHeight();
- int xlow = 0;
- int xhigh = bv.workWidth();
-
-// FIXME: bit more work needed to get 'from' and 'to' right.
- pit_type from = cur.bottom().pit();
- //pit_type to = cur.bottom().pit();
- //lyxerr << "Pit start: " << from << endl;
-
- //lyxerr << "bruteFind3: x: " << x << " y: " << y
- // << " xlow: " << xlow << " xhigh: " << xhigh
- // << " ylow: " << ylow << " yhigh: " << yhigh
- // << endl;
- DocIterator it = doc_iterator_begin(cur.buffer());
- it.pit() = from;
- DocIterator et = doc_iterator_end(cur.buffer());
-
- double best_dist = numeric_limits<double>::max();
- DocIterator best_cursor = et;
-
- for ( ; it != et; it.forwardPos()) {
- // avoid invalid nesting when selecting
- if (bv.cursorStatus(it) == CUR_INSIDE
- && (!cur.selection() || positionable(it, cur.realAnchor()))) {
- // If this function is ever used again, check
- // whether this is the same as "bv.getPos(it,
- // false)" with boundary = false.
- Point p = bv.getPos(it);
- int xo = p.x_;
- int yo = p.y_;
- if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
- double const dx = xo - x;
- double const dy = yo - y;
- double const d = dx * dx + dy * dy;
- //lyxerr << "itx: " << xo << " ity: " << yo << " d: " << d
- // << " dx: " << dx << " dy: " << dy
- // << " idx: " << it.idx() << " pos: " << it.pos()
- // << " it:\n" << it
- // << endl;
- // '<=' in order to take the last possible position
- // this is important for clicking behind \sum in e.g. '\sum_i a'
- if (d <= best_dist) {
- //lyxerr << "*" << endl;
- best_dist = d;
- best_cursor = it;
- }
- }
- }
- }
-
- //lyxerr << "best_dist: " << best_dist << " cur:\n" << best_cursor << endl;
- if (best_cursor == et)
- return false;
- cur.setCursor(best_cursor);
- return true;
-}
-*/
} // namespace anon
CursorData::CursorData()
: DocIterator(), anchor_(),
selection_(false), mark_(false), word_selection_(false),
- logicalpos_(false), current_font(inherit_font)
+ current_font(inherit_font),
+ autocorrect_(false), macromode_(false)
{}
CursorData::CursorData(Buffer * buffer)
: DocIterator(buffer), anchor_(),
selection_(false), mark_(false), word_selection_(false),
- logicalpos_(false), current_font(inherit_font)
+ current_font(inherit_font),
+ autocorrect_(false), macromode_(false)
{}
CursorData::CursorData(DocIterator const & dit)
: DocIterator(dit), anchor_(),
selection_(false), mark_(false), word_selection_(false),
- logicalpos_(false), current_font(inherit_font)
+ current_font(inherit_font),
+ autocorrect_(false), macromode_(false)
{}
+
+
+ostream & operator<<(ostream & os, CursorData const & cur)
+{
+ os << "\n cursor: | anchor:\n";
+ for (size_t i = 0, n = cur.depth(); i != n; ++i) {
+ os << " " << cur[i] << " | ";
+ if (i < cur.anchor_.depth())
+ os << cur.anchor_[i];
+ else
+ os << "-------------------------------";
+ os << "\n";
+ }
+ for (size_t i = cur.depth(), n = cur.anchor_.depth(); i < n; ++i) {
+ os << "------------------------------- | " << cur.anchor_[i] << "\n";
+ }
+ os << " selection: " << cur.selection_
+// << " x_target: " << cur.x_target_
+ << " boundary: " << cur.boundary() << endl;
+ return os;
+}
+
+
+LyXErr & operator<<(LyXErr & os, CursorData const & cur)
+{
+ os.stream() << cur;
+ return os;
+}
+
+
// be careful: this is called from the bv's constructor, too, so
// bv functions are not yet available!
Cursor::Cursor(BufferView & bv)
- : CursorData(&bv.buffer()), bv_(&bv),
- x_target_(-1), textTargetOffset_(0)
+ : CursorData(&bv.buffer()), bv_(&bv),
+ x_target_(-1), textTargetOffset_(0),
+ beforeDispatchPosX_(0), beforeDispatchPosY_(0)
{}
void Cursor::dispatch(FuncRequest const & cmd0)
{
- LYXERR(Debug::DEBUG, "cmd: " << cmd0 << '\n' << *this);
+ LYXERR(Debug::ACTION, "Cursor::dispatch: cmd: " << cmd0 << '\n' << *this);
if (empty())
return;
if (disp_.dispatched())
break;
}
-
+
// it completely to get a 'bomb early' behaviour in case this
// object will be used again.
if (!disp_.dispatched()) {
// We might have invalidated the cursor when removing an empty
// paragraph while the cursor could not be moved out the inset
// while we initially thought we could. This might happen when
- // a multiline inset becomes an inline inset when the second
+ // a multiline inset becomes an inline inset when the second
// paragraph is removed.
if (safe.pit() > safe.lastpit()) {
safe.pit() = safe.lastpit();
}
endUndoGroup();
+ // NOTE: The code below has been copied to BufferView::dispatch.
+ // If you need to modify this, please update the other one too.
+
// notify insets we just left
if (*this != old) {
old.beginUndoGroup();
}
+bool Cursor::inCoordCache() const
+{
+ // the root inset is not in cache, but we do not need it.
+ if (depth() == 1)
+ return true;
+ CoordCache::Insets const & icache = bv_->coordCache().getInsets();
+ for (size_t i = 1 ; i < depth() ; ++i)
+ if (!icache.has(&(*this)[i].inset()))
+ return false;
+ return true;
+}
+
+
void Cursor::getPos(int & x, int & y) const
{
Point p = bv().getPos(*this);
Cursor new_cur = *this; // where we will move to
pos_type left_pos; // position visually left of current cursor
pos_type right_pos; // position visually right of current cursor
- bool new_pos_is_RTL; // is new position we're moving to RTL?
getSurroundingPos(left_pos, right_pos);
// Are we already at rightmost pos in row?
else if (text()->empty() || right_pos == -1) {
-
+
new_cur = *this;
if (!new_cur.posVisToNewRow(false)) {
LYXERR(Debug::RTL, "not moving!");
return false;
}
-
+
// we actually move the cursor at the end of this
// function, for now just keep track of the new
// position in new_cur...
- LYXERR(Debug::RTL, "right edge, moving: " << int(new_cur.pit()) << ","
+ LYXERR(Debug::RTL, "right edge, moving: " << int(new_cur.pit()) << ","
<< int(new_cur.pos()) << "," << (new_cur.boundary() ? 1 : 0));
}
// we're currently to the left of 'right_pos'). In
// order to move to the right, it depends whether or
// not the character at 'right_pos' is RTL.
- new_pos_is_RTL = paragraph().getFontSettings(
+ bool const new_pos_is_RTL = paragraph().getFontSettings(
buffer()->params(), right_pos).isVisibleRightToLeft();
// If the character at 'right_pos' *is* LTR, then in
// order to move to the right of it, we need to be
new_cur.pos() = right_pos;
new_cur.boundary(false);
}
-
+
}
- bool moved = (new_cur.pos() != pos()
- || new_cur.pit() != pit()
- || new_cur.boundary() != boundary()
- || &new_cur.inset() != &inset());
-
+ bool const moved = new_cur != *this || new_cur.boundary() != boundary();
+
if (moved) {
- LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
+ LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
<< (new_cur.boundary() ? " (boundary)" : ""));
*this = new_cur;
}
Cursor new_cur = *this; // where we will move to
pos_type left_pos; // position visually left of current cursor
pos_type right_pos; // position visually right of current cursor
- bool new_pos_is_RTL; // is new position we're moving to RTL?
getSurroundingPos(left_pos, right_pos);
// Are we at an inset?
new_cur.pos() = left_pos;
new_cur.boundary(false);
- if (!skip_inset &&
+ if (!skip_inset &&
text()->checkAndActivateInsetVisual(new_cur, left_pos >= pos(), true)) {
// we actually move the cursor at the end of this
// function, for now we just keep track of the new
// Are we already at leftmost pos in row?
else if (text()->empty() || left_pos == -1) {
-
+
new_cur = *this;
if (!new_cur.posVisToNewRow(true)) {
LYXERR(Debug::RTL, "not moving!");
return false;
}
-
+
// we actually move the cursor at the end of this
// function, for now just keep track of the new
// position in new_cur...
- LYXERR(Debug::RTL, "left edge, moving: " << int(new_cur.pit()) << ","
+ LYXERR(Debug::RTL, "left edge, moving: " << int(new_cur.pit()) << ","
<< int(new_cur.pos()) << "," << (new_cur.boundary() ? 1 : 0));
}
// currently to the right of 'left_pos'). In order to
// move to the left, it depends whether or not the
// character at 'left_pos' is RTL.
- new_pos_is_RTL = paragraph().getFontSettings(
+ bool const new_pos_is_RTL = paragraph().getFontSettings(
buffer()->params(), left_pos).isVisibleRightToLeft();
// If the character at 'left_pos' *is* RTL, then in
// order to move to the left of it, we need to be
new_cur.pos() = left_pos;
new_cur.boundary(false);
}
-
+
}
- bool moved = (new_cur.pos() != pos()
- || new_cur.pit() != pit()
- || new_cur.boundary() != boundary());
+ bool const moved = new_cur != *this || new_cur.boundary() != boundary();
if (moved) {
- LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
+ LYXERR(Debug::RTL, "moving to: " << new_cur.pos()
<< (new_cur.boundary() ? " (boundary)" : ""));
*this = new_cur;
}
-
+
return moved;
}
-void Cursor::getSurroundingPos(pos_type & left_pos, pos_type & right_pos)
+namespace {
+
+// Return true on success
+bool findNonVirtual(Row const & row, Row::const_iterator & cit, bool onleft)
{
- // preparing bidi tables
- Paragraph const & par = paragraph();
- Buffer const & buf = *buffer();
+ if (onleft) {
+ while (cit != row.begin() && cit->isVirtual())
+ --cit;
+ } else {
+ while (cit != row.end() && cit->isVirtual())
+ ++cit;
+ }
+ return cit != row.end() && !cit->isVirtual();
+}
+
+}
+
+void Cursor::getSurroundingPos(pos_type & left_pos, pos_type & right_pos) const
+{
+ // by default, we know nothing.
+ left_pos = -1;
+ right_pos = -1;
+
Row const & row = textRow();
- Bidi bidi;
- bidi.computeTables(par, buf, row);
-
- LYXERR(Debug::RTL, "bidi: " << row.pos() << "--" << row.endpos());
-
- // The cursor is painted *before* the character at pos(), or,
- // if 'boundary' is true, *after* the character at (pos() -
- // 1). So we already have one known position around the
- // cursor:
- pos_type const known_pos = boundary() && pos() > 0 ? pos() - 1 : pos();
-
- // edge case: if we're at the end of the paragraph, things are
- // a little different (because lastpos is a position which
- // does not really "exist" --- there's no character there
- // yet).
- if (known_pos == lastpos()) {
- if (par.isRTL(buf.params())) {
- left_pos = -1;
- right_pos = bidi.vis2log(row.pos());
- } else {
- // LTR paragraph
- right_pos = -1;
- left_pos = bidi.vis2log(row.endpos() - 1);
- }
+ TextMetrics const & tm = bv_->textMetrics(text());
+ double dummy = 0;
+ Row::const_iterator cit = tm.findRowElement(row, pos(), boundary(), dummy);
+ // Handle the case of empty row
+ if (cit == row.end()) {
+ if (paragraph().isRTL(buffer()->params()))
+ right_pos = row.pos();
+ else
+ left_pos = row.pos() - 1;
return;
}
-
- // Whether 'known_pos' is to the left or to the right of the
- // cursor depends on whether it is an RTL or LTR character...
- bool const cur_is_RTL =
- par.getFontSettings(buf.params(), known_pos).isVisibleRightToLeft();
- // ... in the following manner:
- // For an RTL character, "before"
- // means "to the right" and "after" means "to the left"; and
- // for LTR, it's the reverse. So, 'known_pos' is to the right
- // of the cursor if (RTL && boundary) or (!RTL && !boundary):
- bool const known_pos_on_right = cur_is_RTL == boundary();
-
- // So we now know one of the positions surrounding the cursor.
- // Let's determine the other one:
- if (known_pos_on_right) {
- right_pos = known_pos;
- // *visual* position of 'left_pos':
- pos_type v_left_pos = bidi.log2vis(right_pos) - 1;
- // If the position we just identified as 'left_pos' is
- // a "skipped separator" (a separator which is at the
- // logical end of a row, except for the last row in a
- // paragraph; such separators are not painted, so they
- // "are not really there"; note that in bidi text,
- // such a separator could appear visually in the
- // middle of a row), set 'left_pos' to the *next*
- // position to the left.
- if (bidi.inRange(v_left_pos)
- && bidi.vis2log(v_left_pos) + 1 == row.endpos()
- && row.endpos() < lastpos()
- && par.isSeparator(bidi.vis2log(v_left_pos)))
- --v_left_pos;
-
- // calculate the logical position of 'left_pos', if in row
- if (!bidi.inRange(v_left_pos))
- left_pos = -1;
- else
- left_pos = bidi.vis2log(v_left_pos);
- // If the position we identified as 'right_pos' is a
- // "skipped separator", set 'right_pos' to the *next*
- // position to the right.
- if (right_pos + 1 == row.endpos() && row.endpos() < lastpos()
- && par.isSeparator(right_pos)) {
- pos_type const v_right_pos = bidi.log2vis(right_pos) + 1;
- if (!bidi.inRange(v_right_pos))
- right_pos = -1;
- else
- right_pos = bidi.vis2log(v_right_pos);
- }
- } else {
- // known_pos is on the left
- left_pos = known_pos;
- // *visual* position of 'right_pos'
- pos_type v_right_pos = bidi.log2vis(left_pos) + 1;
- // If the position we just identified as 'right_pos'
- // is a "skipped separator", set 'right_pos' to the
- // *next* position to the right.
- if (bidi.inRange(v_right_pos)
- && bidi.vis2log(v_right_pos) + 1 == row.endpos()
- && row.endpos() < lastpos()
- && par.isSeparator(bidi.vis2log(v_right_pos)))
- ++v_right_pos;
-
- // calculate the logical position of 'right_pos', if in row
- if (!bidi.inRange(v_right_pos))
- right_pos = -1;
- else
- right_pos = bidi.vis2log(v_right_pos);
- // If the position we identified as 'left_pos' is a
- // "skipped separator", set 'left_pos' to the *next*
- // position to the left.
- if (left_pos + 1 == row.endpos() && row.endpos() < lastpos()
- && par.isSeparator(left_pos)) {
- pos_type const v_left_pos = bidi.log2vis(left_pos) - 1;
- if (!bidi.inRange(v_left_pos))
- left_pos = -1;
- else
- left_pos = bidi.vis2log(v_left_pos);
+
+ // skip virtual elements and exit if no non-virtual one exists
+ if (!findNonVirtual(row, cit, !cit->isRTL()))
+ return;
+
+ // if the position is at the left side of the element, we have to
+ // look at the previous element
+ if (pos() == cit->left_pos()) {
+ LYXERR(Debug::RTL, "getSurroundingPos(" << pos() << (boundary() ? "b" : "")
+ << "), AT LEFT of *cit=" << *cit);
+ // this one is easy (see common case below)
+ right_pos = pos() - (cit->isRTL() ? 1 : 0);
+ // at the left of the row
+ if (cit == row.begin())
+ return;
+ --cit;
+ if (!findNonVirtual(row, cit, true))
+ return;
+ // [...[ is the row element, | is cursor position (! with boundary)
+ // [ 1 2 [ is a ltr row element with pos=1 and endpos=3
+ // ] 2 1] is an rtl row element with pos=1 and endpos=3
+ // [ 1 2 [ [|3 4 [ => (2, 3)
+ // or [ 1 2 [ ]!4 3 ] => (2, 4)
+ // or ] 2 1 ] [|3 4 [ => (1, 3)
+ // or ] 4 3 ] ]!2 1 ] => (3, 2)
+ left_pos = cit->right_pos() - (cit->isRTL() ? 0 : 1);
+ // happens with consecutive row of same direction
+ if (left_pos == right_pos) {
+ left_pos += cit->isRTL() ? 1 : -1;
}
}
- return;
+ // same code but with the element at the right
+ else if (pos() == cit->right_pos()) {
+ LYXERR(Debug::RTL, "getSurroundingPos(" << pos() << (boundary() ? "b" : "")
+ << "), AT RIGHT of *cit=" << *cit);
+ // this one is easy (see common case below)
+ left_pos = pos() - (cit->isRTL() ? 0 : 1);
+ // at the right of the row
+ if (cit + 1 == row.end())
+ return;
+ ++cit;
+ if (!findNonVirtual(row, cit, false))
+ return;
+ // [ 1 2![ [ 3 4 [ => (2, 3)
+ // or [ 1 2![ ] 4 3 ] => (2, 4)
+ // or ] 2 1|] [ 3 4 [ => (1, 3)
+ // or ] 4 3|] ] 2 1 ] => (3, 2)
+ right_pos = cit->left_pos() - (cit->isRTL() ? 1 : 0);
+ // happens with consecutive row of same direction
+ if (right_pos == left_pos)
+ right_pos += cit->isRTL() ? -1 : 1;
+ }
+ // common case: both positions are inside the row element
+ else {
+ // [ 1 2|3 [ => (2, 3)
+ // or ] 3|2 1 ] => (3, 2)
+ left_pos = pos() - (cit->isRTL() ? 0 : 1);
+ right_pos = pos() - (cit->isRTL() ? 1 : 0);
+ }
+
+ // Note that debug message does not catch all early returns above
+ LYXERR(Debug::RTL,"getSurroundingPos(" << pos() << (boundary() ? "b" : "")
+ << ") => (" << left_pos << ", " << right_pos <<")");
}
// Inside a table, determining whether to move to the next or
// previous row should be done based on the table's direction.
- int s = depth() - 1;
- if (s >= 1 && (*this)[s].inset().asInsetTabular()) {
- par_is_LTR = !(*this)[s].inset().asInsetTabular()->isRightToLeft(*this);
+ if (inset().asInsetTabular()) {
+ par_is_LTR = !inset().asInsetTabular()->isRightToLeft(*this);
LYXERR(Debug::RTL, "Inside table! par_is_LTR=" << (par_is_LTR ? 1 : 0));
}
-
+
// if moving left in an LTR paragraph or moving right in an
// RTL one, move to previous row
if (par_is_LTR == movingLeft) {
boundary(false);
}
}
-
+
// make sure we're at left-/right-most pos in new row
posVisToRowExtremity(!movingLeft);
}
-void Cursor::posVisToRowExtremity(bool left)
+void Cursor::posVisToRowExtremity(bool left)
{
- // prepare bidi tables
- Paragraph const & par = paragraph();
- Buffer const & buf = *buffer();
- Row const & row = textRow();
- Bidi bidi;
- bidi.computeTables(par, buf, row);
-
LYXERR(Debug::RTL, "entering extremity: " << pit() << "," << pos() << ","
<< (boundary() ? 1 : 0));
- if (left) { // move to leftmost position
- // if this is an RTL paragraph, and we're at the last row in the
- // paragraph, move to lastpos
- if (par.isRTL(buf.params()) && row.endpos() == lastpos())
- pos() = lastpos();
- else {
- pos() = bidi.vis2log(row.pos());
-
- // Moving to the leftmost position in the row,
- // the cursor should normally be placed to the
- // *left* of the leftmost position. A very
- // common exception, though, is if the
- // leftmost character also happens to be the
- // separator at the (logical) end of the row
- // --- in this case, the separator is
- // positioned beyond the left margin, and we
- // don't want to move the cursor there (moving
- // to the left of the separator is equivalent
- // to moving to the next line). So, in this
- // case we actually want to place the cursor
- // to the *right* of the leftmost position
- // (the separator). Another exception is if
- // we're moving to the logically last position
- // in the row, which is *not* a separator:
- // this means that the entire row has no
- // separators (if there were any, the row
- // would have been broken there); and
- // therefore in this case we also move to the
- // *right* of the last position (this
- // indicates to the user that there is no
- // space after this position, and is
- // consistent with the behavior in the middle
- // of a row --- moving right or left moves to
- // the next/previous character; if we were to
- // move to the *left* of this position, that
- // would simulate a separator which is not
- // really there!). Finally, there is an
- // exception to the previous exception: if
- // this non-separator-but-last-position-in-row
- // is an inset, then we *do* want to stay to
- // the left of it anyway: this is the
- // "boundary" which we simulate at insets.
-
- // Another exception is when row.endpos() is
- // 0.
-
- // do we want to be to the right of pos?
- // as explained above, if at last pos in row, stay to the right
- bool const right_of_pos = row.endpos() > 0
- && pos() == row.endpos() - 1 && !par.isInset(pos());
-
- // Now we know if we want to be to the left or to the right of pos,
- // let's make sure we are where we want to be.
- bool const new_pos_is_RTL =
- par.getFontSettings(buf.params(), pos()).isVisibleRightToLeft();
-
- if (new_pos_is_RTL != right_of_pos) {
- ++pos();
- boundary(true);
- }
- }
- } else {
- // move to rightmost position
- // if this is an LTR paragraph, and we're at the last row in the
- // paragraph, move to lastpos
- if (!par.isRTL(buf.params()) && row.endpos() == lastpos())
- pos() = lastpos();
- else {
- pos() = row.endpos() > 0 ? bidi.vis2log(row.endpos() - 1) : 0;
-
- // Moving to the rightmost position in the
- // row, the cursor should normally be placed
- // to the *right* of the rightmost position. A
- // very common exception, though, is if the
- // rightmost character also happens to be the
- // separator at the (logical) end of the row
- // --- in this case, the separator is
- // positioned beyond the right margin, and we
- // don't want to move the cursor there (moving
- // to the right of the separator is equivalent
- // to moving to the next line). So, in this
- // case we actually want to place the cursor
- // to the *left* of the rightmost position
- // (the separator). Another exception is if
- // we're moving to the logically last position
- // in the row, which is *not* a separator:
- // this means that the entire row has no
- // separators (if there were any, the row
- // would have been broken there); and
- // therefore in this case we also move to the
- // *left* of the last position (this indicates
- // to the user that there is no space after
- // this position, and is consistent with the
- // behavior in the middle of a row --- moving
- // right or left moves to the next/previous
- // character; if we were to move to the
- // *right* of this position, that would
- // simulate a separator which is not really
- // there!). Finally, there is an exception to
- // the previous exception: if this
- // non-separator-but-last-position-in-row is
- // an inset, then we *do* want to stay to the
- // right of it anyway: this is the "boundary"
- // which we simulate at insets. Another
- // exception is when row.endpos() is 0.
-
- // do we want to be to the left of pos?
- // as explained above, if at last pos in row, stay to the left,
- // unless the last position is the same as the first.
- bool const left_of_pos = row.endpos() > 0
- && pos() == row.endpos() - 1 && !par.isInset(pos());
-
- // Now we know if we want to be to the left or to the right of pos,
- // let's make sure we are where we want to be.
- bool const new_pos_is_RTL =
- par.getFontSettings(buf.params(), pos()).isVisibleRightToLeft();
-
- if (new_pos_is_RTL == left_of_pos) {
- ++pos();
- boundary(true);
- }
- }
- }
+ TextMetrics const & tm = bv_->textMetrics(text());
+ // Looking for extremities is like clicking on the left or the
+ // right of the row.
+ int x = tm.origin().x_ + (left ? 0 : textRow().width());
+ bool b = false;
+ pos() = tm.getPosNearX(textRow(), x, b);
+ boundary(b);
+
LYXERR(Debug::RTL, "leaving extremity: " << pit() << "," << pos() << ","
<< (boundary() ? 1 : 0));
}
+bool Cursor::reverseDirectionNeeded() const
+{
+ /*
+ * We determine the directions based on the direction of the
+ * bottom() --- i.e., outermost --- paragraph, because that is
+ * the only way to achieve consistency of the arrow's movements
+ * within a paragraph, and thus avoid situations in which the
+ * cursor gets stuck.
+ */
+ return bottom().paragraph().isRTL(bv().buffer().params());
+}
+
+
CursorSlice Cursor::normalAnchor() const
{
if (!selection())
// LASSERT: There have been several bugs around this code, that seem
// to involve failures to reset the anchor. We can at least not crash
// in release mode by resetting it ourselves.
- LASSERT(anchor_.depth() >= depth(),
- const_cast<DocIterator &>(anchor_) = *this);
+ if (anchor_.depth() < depth()) {
+ LYXERR0("Cursor is deeper than anchor. PLEASE REPORT.\nCursor is"
+ << *this);
+ const_cast<DocIterator &>(anchor_) = *this;
+ }
CursorSlice normal = anchor_[depth() - 1];
if (depth() < anchor_.depth() && top() <= normal) {
}
-DocIterator & Cursor::realAnchor()
-{
- return anchor_;
-}
-
-
CursorSlice Cursor::selBegin() const
{
if (!selection())
void Cursor::setSelection()
{
- setSelection(true);
- // A selection with no contents is not a selection
- // FIXME: doesnt look ok
- if (idx() == normalAnchor().idx() &&
- pit() == normalAnchor().pit() &&
+ selection(true);
+ if (idx() == normalAnchor().idx() &&
+ pit() == normalAnchor().pit() &&
pos() == normalAnchor().pos())
- setSelection(false);
+ selection(false);
}
void Cursor::setSelection(DocIterator const & where, int n)
{
setCursor(where);
- setSelection(true);
+ selection(true);
anchor_ = where;
pos() += n;
}
void Cursor::clearSelection()
{
- setSelection(false);
+ selection(false);
setWordSelection(false);
setMark(false);
resetAnchor();
if (inset)
prevInset()->infoize2(os);
}
- // overwite old message
- os << " ";
}
cap::saveSelection(*this);
resetAnchor();
- setSelection(sel);
+ selection(sel);
return true;
}
-
-
-ostream & operator<<(ostream & os, Cursor const & cur)
-{
- os << "\n cursor: | anchor:\n";
- for (size_t i = 0, n = cur.depth(); i != n; ++i) {
- os << " " << cur[i] << " | ";
- if (i < cur.anchor_.depth())
- os << cur.anchor_[i];
- else
- os << "-------------------------------";
- os << "\n";
- }
- for (size_t i = cur.depth(), n = cur.anchor_.depth(); i < n; ++i) {
- os << "------------------------------- | " << cur.anchor_[i] << "\n";
- }
- os << " selection: " << cur.selection_
- << " x_target: " << cur.x_target_ << endl;
- return os;
-}
-
-
-LyXErr & operator<<(LyXErr & os, Cursor const & cur)
-{
- os.stream() << cur;
- return os;
-}
-
-
} // namespace lyx
++pos();
inset().setBuffer(bv_->buffer());
inset().initView();
- forceBufferUpdate();
+ checkBufferStructure();
}
// let's require two backspaces for 'big stuff' and
// highlight on the first
resetAnchor();
- setSelection(true);
+ selection(true);
--pos();
} else {
--pos();
// 'clever' UI hack: only erase large items if previously slected
if (pos() != lastpos() && nextAtom()->nargs() > 0) {
resetAnchor();
- setSelection(true);
+ selection(true);
++pos();
} else {
plainErase();
// insert remembered selection into first argument of a non-macro
else if (atom.nucleus()->nargs() > 0)
atom.nucleus()->cell(0).append(selection);
-
+
plainInsert(atom);
// finally put the macro argument behind, if needed
else
insert(selection);
}
-
+
return true;
}
<< pos() << ' ' << lastpos() << " in idx: " << idx()
<< " in atom: '";
odocstringstream os;
- WriteStream wi(os, false, true, WriteStream::wsDefault);
+ TexRow texrow(false);
+ otexrowstream ots(os,texrow);
+ WriteStream wi(ots, false, true, WriteStream::wsDefault);
inset().asInsetMath()->write(wi);
lyxerr << to_utf8(os.str()) << endl;
pos() = lastpos();
else if (inset().asInsetText() && xo - textTargetOffset() != x_target()) {
// In text mode inside the line (not left or right) possibly set a new target_x,
// but only if we are somewhere else than the previous target-offset.
-
+
// We want to keep the x-target on subsequent up/down movements
// that cross beyond the end of short lines. Thus a special
// handling when the cursor is at the end of line: Use the new
// x-target only if the old one was before the end of line
// or the old one was after the beginning of the line
- bool inRTL = isWithinRtlParagraph(*this);
+ bool inRTL = innerParagraph().isRTL(bv().buffer().params());
bool left;
bool right;
if (inRTL) {
push(*const_cast<InsetMathScript*>(p));
idx() = p->idxOfScript(up);
pos() = lastpos();
-
+
// we went in the right direction? Otherwise don't jump into the script
int x;
int y;
return true;
}
}
-
+
// try right
if (pos() != lastpos()) {
InsetMathScript const * p = nextAtom()->asScriptInset();
push(*const_cast<InsetMathScript*>(p));
idx() = p->idxOfScript(up);
pos() = 0;
-
+
// we went in the right direction? Otherwise don't jump into the script
int x;
int y;
}
}
}
-
+
// try to find an inset that knows better then we,
if (inset().idxUpDown(*this, up)) {
//lyxerr << "idxUpDown triggered" << endl;
// try to find best position within this inset
if (!selection())
- setCursor(bruteFind2(*this, xo, yo));
+ setCursor(bruteFind(*this, xo, yo));
return true;
}
-
+
// any improvement going just out of inset?
if (popBackward() && inMathed()) {
//lyxerr << "updown: popBackward succeeded" << endl;
if (up ? ynew < yold : ynew > yold)
return true;
}
-
+
// no success, we are probably at the document top or bottom
operator=(old);
return false;
{
TextMetrics const & tm = bv_->textMetrics(text());
ParagraphMetrics const & pm = tm.parMetrics(pit());
-
+
int row;
if (pos() && boundary())
row = pm.pos2row(pos() - 1);
else
row = pm.pos2row(pos());
-
+
if (up) {
if (pit() == 0 && row == 0)
return true;
// In text mode inside the line (not left or right)
// possibly set a new target_x, but only if we are
// somewhere else than the previous target-offset.
-
+
// We want to keep the x-target on subsequent up/down
// movements that cross beyond the end of short lines.
// Thus a special handling when the cursor is at the
// end of line: Use the new x-target only if the old
// one was before the end of line or the old one was
// after the beginning of the line
- bool inRTL = isWithinRtlParagraph(*this);
+ bool inRTL = innerParagraph().isRTL(bv().buffer().params());
bool left;
bool right;
if (inRTL) {
xo = targetX();
} else
xo = targetX();
-
+
// first get the current line
TextMetrics & tm = bv_->textMetrics(text());
ParagraphMetrics const & pm = tm.parMetrics(pit());
row = pm.pos2row(pos() - 1);
else
row = pm.pos2row(pos());
-
+
if (atFirstOrLastRow(up)) {
// Is there a place for the cursor to go ? If yes, we
// can execute the DEPM, otherwise we should keep the
break;
}
- // will a next dispatch follow and if there is a new
+ // will a next dispatch follow and if there is a new
// dispatch will it move the cursor out ?
if (depth() > 1 && valid_destination) {
// The cursor hasn't changed yet. This happens when
- // you e.g. move out of an inset. And to give the
+ // you e.g. move out of an inset. And to give the
// DEPM the possibility of doing something we must
// provide it with two different cursors. (Lgb, vfr)
dummy = *this;
else
tm.editXY(*this, xo, yo + textRow().descent() + 1);
clearSelection();
-
- // This happens when you move out of an inset.
- // And to give the DEPM the possibility of doing
- // something we must provide it with two different
- // cursors. (Lgb)
+
+ // This happens when you move out of an inset.
+ // And to give the DEPM the possibility of doing
+ // something we must provide it with two different
+ // cursors. (Lgb)
Cursor dummy = *this;
if (dummy == old)
++dummy.pos();
if (bv().checkDepm(dummy, old)) {
updateNeeded = true;
- // Make sure that cur gets back whatever happened to dummy (Lgb)
+ // Make sure that cur gets back whatever happened to dummy (Lgb)
operator=(dummy);
}
+ if (inTexted() && pos() && paragraph().isEnvSeparator(pos() - 1))
+ posBackward();
} else {
// if there is a selection, we stay out of any inset,
// and just jump to the right position:
next_row = 0;
}
}
- top().pos() = min(tm.x2pos(pit(), next_row, xo), top().lastpos());
-
- int const xpos = tm.x2pos(pit(), next_row, xo);
- bool const at_end_row = xpos == tm.x2pos(pit(), next_row, tm.width());
- bool const at_beg_row = xpos == tm.x2pos(pit(), next_row, 0);
- if (at_end_row && at_beg_row)
- // make sure the cursor ends up on this row
- boundary(false);
- else
- boundary(at_end_row);
+ Row const & real_next_row = tm.parMetrics(pit()).rows()[next_row];
+ bool bound = false;
+ top().pos() = tm.getPosNearX(real_next_row, xo, bound);
+ boundary(bound);
updateNeeded |= bv().checkDepm(*this, old);
}
forceBufferUpdate();
updateTextTargetOffset();
return true;
-}
+}
void Cursor::handleFont(string const & font)
odocstringstream os;
os << '\n';
// only add blank line if we're not in a ParbreakIsNewline situation
- if (!cur->inset().getLayout().parbreakIsNewline()
+ if (!cur->inset().getLayout().parbreakIsNewline()
&& !cur->paragraph().layout().parbreak_is_newline)
os << '\n';
return os.str();
if (inMathed()) {
odocstringstream os;
info(os);
+#ifdef DEVEL_VERSION
+ InsetMath * math = inset().asInsetMath();
+ if (math)
+ os << _(", Inset: ") << math->id();
+ os << _(", Cell: ") << idx();
+ os << _(", Position: ") << pos();
+#endif
return os.str();
}
// The logic here should more or less match to the
// Cursor::setCurrentFont logic, i.e. the cursor height should
// give a hint what will happen if a character is entered.
-
+
// HACK. far from being perfect...
CursorSlice const & sl = innerTextSlice();
Text const & text = *sl.text();
Paragraph const & par = text.getPar(sl.pit());
-
+
// on boundary, so we are really at the character before
pos_type pos = sl.pos();
if (pos > 0 && boundary())
--pos;
-
+
// on space? Take the font before (only for RTL boundary stay)
if (pos > 0) {
TextMetrics const & tm = bv().textMetrics(&text);
if (pos == sl.lastpos()
- || (par.isSeparator(pos)
+ || (par.isSeparator(pos)
&& !tm.isRTLBoundary(sl.pit(), pos)))
--pos;
}
-
+
// get font at the position
Font font = par.getFont(buffer()->params(), pos,
text.outerFont(sl.pit()));
{
bool const broken_cursor = DocIterator::fixIfBroken();
bool const broken_anchor = anchor_.fixIfBroken();
-
+
if (broken_cursor || broken_anchor) {
clearNewWordPosition();
clearSelection();
{
setBuffer(&bv_->buffer());
DocIterator::sanitize();
- anchor_.sanitize();
+ if (selection())
+ anchor_.sanitize();
+ else
+ resetAnchor();
}
if (cur[i].inset().notifyCursorEnters(cur))
return true;
}
-
+
return false;
}
void Cursor::beginUndoGroup() const
{
- buffer()->undo().beginUndoGroup();
+ buffer()->undo().beginUndoGroup(*this);
}
}
-void Cursor::recordUndo(UndoKind kind, pit_type from, pit_type to) const
+void Cursor::recordUndo(pit_type from, pit_type to) const
{
- buffer()->undo().recordUndo(*this, kind, from, to);
+ buffer()->undo().recordUndo(*this, from, to);
}
-void Cursor::recordUndo(UndoKind kind, pit_type from) const
+void Cursor::recordUndo(pit_type from) const
{
- buffer()->undo().recordUndo(*this, kind, from);
+ buffer()->undo().recordUndo(*this, from, pit());
}
}
-void Cursor::recordUndoInset(UndoKind kind, Inset const * inset) const
+void Cursor::recordUndoInset(Inset const * in) const
+{
+ buffer()->undo().recordUndoInset(*this, in);
+}
+
+
+void Cursor::recordUndoFullBuffer() const
{
- buffer()->undo().recordUndoInset(*this, kind, inset);
+ buffer()->undo().recordUndoFullBuffer(*this);
}
-void Cursor::recordUndoFullDocument() const
+void Cursor::recordUndoBufferParams() const
{
- buffer()->undo().recordUndoFullDocument(*this);
+ buffer()->undo().recordUndoBufferParams(*this);
}
else
recordUndo();
} else {
- buffer()->undo().recordUndo(*this, ATOMIC_UNDO,
+ buffer()->undo().recordUndo(*this,
selBegin().pit(), selEnd().pit());
}
}
Buffer const * master = buffer()->masterBuffer();
master->tocBackend().updateItem(*this);
if (master != buffer() && !master->hasGuiDelegate())
- // In case the master has no gui associated with it,
+ // In case the master has no gui associated with it,
// the TocItem is not updated (part of bug 5699).
buffer()->tocBackend().updateItem(*this);
+
+ // If the last tracked change of the paragraph has just been
+ // deleted, then we need to recompute the buffer flag
+ // tracked_changes_present_.
+ if (inTexted() && paragraph().isChangeUpdateRequired())
+ disp_.forceChangesUpdate();
}
projects / lyx.git / blobdiff