commit 016bb5b23ccce06128d878139a625a75557afca5
Author: Jean-Marc Lasgouttes <lasgout...@lyx.org>
Date: Thu Apr 3 23:16:21 2025 +0200
Improve breaking of equation with C-Return
This does two different changes:
1/ when the equation is not of grid type, newline-insert will preserve
cursor position when mutating the equation to align or eqnarray.
2/ when the equation is already of grid type, the cursor will be
adjusted to go to the newly-created row.
Related to bug #11515, but does not fix it.
---
src/mathed/InsetMathGrid.cpp | 16 ++++++++--------
src/mathed/InsetMathHull.cpp | 12 ++++++++++--
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/src/mathed/InsetMathGrid.cpp b/src/mathed/InsetMathGrid.cpp
index f3e4aff269..f48d1eeeb9 100644
--- a/src/mathed/InsetMathGrid.cpp
+++ b/src/mathed/InsetMathGrid.cpp
@@ -1425,23 +1425,23 @@ void InsetMathGrid::doDispatch(Cursor & cur,
FuncRequest & cmd)
case LFUN_NEWLINE_INSERT: {
cur.recordUndoInset();
- row_type const r = cur.row();
- addRow(r);
+ row_type const oldr = cur.row();
+ col_type const oldc = cur.col();
+ addRow(oldr);
// split line
for (col_type c = col(cur.idx()) + 1; c < ncols(); ++c)
- swap(cell(index(r, c)), cell(index(r + 1, c)));
+ swap(cell(index(oldr, c)), cell(index(oldr + 1, c)));
// split cell
splitCell(cur);
if (ncols() > 1)
swap(cell(cur.idx()), cell(cur.idx() + ncols() - 1));
- if (cur.idx() > 0)
- --cur.idx();
- cur.pos() = cur.lastpos();
+
+ // move cursor to next line
+ cur.idx() = index(oldr + 1, oldc);
+ cur.pos() = 0;
cur.forceBufferUpdate();
- //mathcursor->normalize();
- //cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
break;
}
diff --git a/src/mathed/InsetMathHull.cpp b/src/mathed/InsetMathHull.cpp
index 5b1d0e57c5..04d48151f8 100644
--- a/src/mathed/InsetMathHull.cpp
+++ b/src/mathed/InsetMathHull.cpp
@@ -1893,8 +1893,16 @@ void InsetMathHull::doDispatch(Cursor & cur, FuncRequest
& cmd)
mutate(align ? hullAlign : hullEqnArray);
// mutate() may change labels and such.
cur.forceBufferUpdate();
- cur.idx() = nrows() * ncols() - 1;
- cur.pos() = cur.lastpos();
+ size_t p = cur.pos();
+ for (idx_type idx = 0 ; idx < nargs() ; ++idx) {
+ if (cell(idx).size() < p)
+ p -= cell(idx).size();
+ else {
+ cur.idx() = idx;
+ cur.pos() = p;
+ break;
+ }
+ }
}
InsetMathGrid::doDispatch(cur, cmd);
break;
--
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