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Fix bug #12797.

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Use plaintext to give some display of equations in TOC.
This commit is contained in:
Richard Kimberly Heck 2023-07-27 19:31:11 -04:00
parent effd65a586
commit 89a479f60d
1 changed files with 25 additions and 4 deletions
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29
src/mathed/InsetMathHull.cpp
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@ -310,6 +310,13 @@ void InsetMathHull::addToToc(DocIterator const & pit, bool output_active,
if (first != last)
b.argumentItem(bformat(from_ascii("(%1$s-%2$s)"),
numbers_[first], numbers_[last]));
odocstringstream ods;
Encoding const * enc = encodings.fromLyXName("utf8");
OutputParams ops(enc);
ops.for_toc = true;
int const max_length = 30;
for (row_type row = 0; row != nrows(); ++row) {
if (!numbered(row))
continue;
@ -319,12 +326,26 @@ void InsetMathHull::addToToc(DocIterator const & pit, bool output_active,
label_[row]->addToToc(pit, output_active, utype, backend);
}
docstring label = nicelabel(row);
if (first == last)
if (first == last) {
// this is the only equation
b.argumentItem(label);
else {
plaintext(ods, ops, max_length);
b.argumentItem(label + " " + ods.str());
} else {
// insert as sub-items
b.pushItem(pit, label, output_active);
otexrowstream ots(ods);
TeXMathStream wi(ots, false, false, TeXMathStream::wsDefault, enc);
docstring d;
for (col_type c = 0; c < ncols(); ++c) {
wi << cell(index(row, c));
d = ods.str();
if (d.size() > max_length) {
d = d.substr(0, max_length - 1);
break;
}
}
b.pushItem(pit, label+ " " + d, output_active);
// clear the stringstream
odocstringstream().swap(ods);
b.pop();
}
}