shiboken6/Documentation: Fix table width determination

Initialize the width/height lists to 0.
As a drive-by, use the number of lines from splitting
instead of counting.

Change-Id: Ib17ed819684298599d3c01cf00cfc8b5c192d232
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit ad01b159e02067ba46d6433412cb1e690553e946)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/sources/shiboken6/generator/qtdoc/qtxmltosphinx.cpp b/sources/shiboken6/generator/qtdoc/qtxmltosphinx.cpp
index 66c267852..10a97549d 100644
--- a/sources/shiboken6/generator/qtdoc/qtxmltosphinx.cpp
+++ b/sources/shiboken6/generator/qtdoc/qtxmltosphinx.cpp
@@ -1304,15 +1304,15 @@ void QtXmlToSphinx::Table::format(TextStream& s) const
 
     // calc width and height of each column and row
     const int headerColumnCount = m_rows.constFirst().count();
-    QList<int> colWidths(headerColumnCount);
-    QList<int> rowHeights(m_rows.count());
+    QList<int> colWidths(headerColumnCount, 0);
+    QList<int> rowHeights(m_rows.count(), 0);
     for (int i = 0, maxI = m_rows.count(); i < maxI; ++i) {
         const QtXmlToSphinx::TableRow& row = m_rows.at(i);
         for (int j = 0, maxJ = std::min(row.count(), colWidths.size()); j < maxJ; ++j) {
             const auto rowLines = QStringView{row[j].data}.split(QLatin1Char('\n')); // cache this would be a good idea
             for (const auto &str : rowLines)
                 colWidths[j] = std::max(colWidths[j], int(str.size()));
-            rowHeights[i] = std::max(rowHeights[i], int(row[j].data.count(QLatin1Char('\n')) + 1));
+            rowHeights[i] = std::max(rowHeights[i], int(rowLines.size()));
         }
     }