diff options
Diffstat (limited to 'stats/statsview.h')
| -rw-r--r-- | stats/statsview.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/stats/statsview.h b/stats/statsview.h index 3623c01eb..cc497792b 100644 --- a/stats/statsview.h +++ b/stats/statsview.h @@ -43,13 +43,14 @@ public: ~StatsView(); void plot(const StatsState &state); - void updateFeatures(const StatsState &state); // Updates the visibility of chart features, such as legend, regression, etc. + void updateFeatures(const StatsState &state); // Updates the visibility of chart features, such as legend, regression, etc. QQuickWindow *w() const; // Make window available to items QSizeF size() const; QRectF plotArea() const; void addQSGNode(QSGNode *node, ChartZValue z); // Must only be called in render thread! void registerChartItem(ChartItem &item); void registerDirtyChartItem(ChartItem &item); + void emergencyShutdown(); // Called when QQuick decides to delete out root node. // Create a chart item and add it to the scene. // The item must not be deleted by the caller, but can be @@ -151,6 +152,10 @@ private: // There are three double linked lists of chart items: // clean items, dirty items and items to be deleted. + // Note that only the render thread must delete chart items, + // and therefore these lists are the only owning pointers + // to chart items. All other pointers are non-owning and + // can therefore become stale. struct ChartItemList { ChartItemList(); ChartItem *first, *last; @@ -161,6 +166,7 @@ private: }; ChartItemList cleanItems, dirtyItems, deletedItems; void deleteChartItemInternal(ChartItem &item); + void freeDeletedChartItems(); }; // This implementation detail must be known to users of the class. |