Fix crash when deleting all points from a line.
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55c616519b
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@ -64,6 +64,7 @@ ControlList::ControlList (const Parameter& id)
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_default_value = id.normal();
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_lookup_cache.left = -1;
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_lookup_cache.range.first = _events.end();
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_lookup_cache.range.second = _events.end();
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_search_cache.left = -1;
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_search_cache.first = _events.end();
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_sort_pending = false;
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@ -85,6 +86,7 @@ ControlList::ControlList (const ControlList& other)
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_max_yval = other._max_yval;
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_default_value = other._default_value;
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_lookup_cache.range.first = _events.end();
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_lookup_cache.range.second = _events.end();
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_search_cache.first = _events.end();
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_sort_pending = false;
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new_write_pass = true;
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@ -109,6 +111,7 @@ ControlList::ControlList (const ControlList& other, double start, double end)
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_max_yval = other._max_yval;
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_default_value = other._default_value;
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_lookup_cache.range.first = _events.end();
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_lookup_cache.range.second = _events.end();
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_search_cache.first = _events.end();
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_sort_pending = false;
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@ -935,7 +938,10 @@ void
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ControlList::mark_dirty () const
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{
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_lookup_cache.left = -1;
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_lookup_cache.range.first = _events.end();
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_lookup_cache.range.second = _events.end();
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_search_cache.left = -1;
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_search_cache.first = _events.end();
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if (_curve) {
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_curve->mark_dirty();
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@ -1283,7 +1289,10 @@ ControlList::build_search_cache_if_necessary (double start) const
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{
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/* Only do the range lookup if x is in a different range than last time
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* this was called (or if the search cache has been marked "dirty" (left<0) */
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if (!_events.empty() && ((_search_cache.left < 0) || (_search_cache.left > start))) {
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if (_events.empty()) {
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_search_cache.first = _events.end();
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_search_cache.left = 0;
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} else if ((_search_cache.left < 0) || (_search_cache.left > start)) {
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const ControlEvent start_point (start, 0);
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