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Check whether MathRow exists when computing caret metrics
Fixes bug #12888.
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@ -435,6 +435,12 @@ CoordCache const & BufferView::coordCache() const
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}
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bool BufferView::hasMathRow(MathData const * cell) const
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{
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return d->math_rows_.find(cell) != d->math_rows_.end();
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}
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MathRow const & BufferView::mathRow(MathData const * cell) const
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{
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auto it = d->math_rows_.find(cell);
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@ -3323,7 +3329,7 @@ bool BufferView::paragraphVisible(DocIterator const & dit) const
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void BufferView::caretPosAndDim(Point & p, Dimension & dim) const
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{
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Cursor const & cur = cursor();
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if (cur.inMathed()) {
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if (cur.inMathed() && hasMathRow(&cur.cell())) {
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MathRow const & mrow = mathRow(&cur.cell());
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dim = mrow.caret_dim;
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} else {
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@ -321,6 +321,8 @@ public:
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///
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CoordCache const & coordCache() const;
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///
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bool hasMathRow(MathData const * cell) const;
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///
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MathRow const & mathRow(MathData const * cell) const;
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///
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