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Erase correctly math multi-cell selection

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What a selection spans several cells in mathed, and a deletion occurs though LFUN_CHAR_DELETE_FORWARD for example, only the case of a proper grid was handled. When no such grid exists, all cells between the first and the last index are cleared now.

Fixes part of bug #9747.
This commit is contained in:
Jean-Marc Lasgouttes 2014-10-16 16:16:15 +02:00
parent 7799e7960c
commit cd499fdef4
2 changed files with 40 additions and 26 deletions
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24
src/CutAndPaste.cpp
View File

@ -1274,17 +1274,22 @@ void eraseSelection(Cursor & cur)
//lyxerr << "cap::eraseSelection begin: " << cur << endl;
CursorSlice const & i1 = cur.selBegin();
CursorSlice const & i2 = cur.selEnd();
if (i1.inset().asInsetMath()) {
if (!i1.asInsetMath()) {
LYXERR0("Can't erase this selection");
return;
}
saveSelection(cur);
cur.top() = i1;
InsetMath * p = i1.asInsetMath();
if (i1.idx() == i2.idx()) {
i1.cell().erase(i1.pos(), i2.pos());
// We may have deleted i1.cell(cur.pos()).
// Make sure that pos is valid.
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
} else {
InsetMath * p = i1.asInsetMath();
} else if (p->nrows() > 0 && p->ncols() > 0) {
// This is a grid, delete a nice square region
Inset::row_type r1, r2;
Inset::col_type c1, c2;
region(i1, i2, r1, r2, c1, c2);
@ -1293,12 +1298,19 @@ void eraseSelection(Cursor & cur)
p->cell(p->index(row, col)).clear();
// We've deleted the whole cell. Only pos 0 is valid.
cur.pos() = 0;
} else {
Inset::idx_type idx1 = i1.idx();
Inset::idx_type idx2 = i2.idx();
if (idx1 > idx2)
swap(idx1, idx2);
for (Inset::idx_type idx = idx1 ; idx <= idx2; ++idx)
p->cell(idx).clear();
// We've deleted the whole cell. Only pos 0 is valid.
cur.pos() = 0;
}
// need a valid cursor. (Lgb)
cur.clearSelection();
} else {
lyxerr << "can't erase this selection 1" << endl;
}
//lyxerr << "cap::eraseSelection end: " << cur << endl;
}

6
status.21x
View File

@ -43,7 +43,8 @@ What's new
- The indentation of beamer frame contents has been decreased and unified.
- In mathed, select only current cell on double-click
- In mathed, select only current cell on double-click (bug 9747).
* DOCUMENTATION AND LOCALIZATION
@ -155,8 +156,9 @@ What's new
- Fix initialization problem with default Inset Layout.
- When a counter is stepped, reset recursively all subcounters (bug #10063).
- When a counter is stepped, reset recursively all subcounters (bug 10063).
- Erase correctly math multi-cell selections (bug 9747).
* INTERNALS