Cleanup: make DiveTripModel a global object

DiveTripModel (the model describing the dive-list) was destroyed
and recreated on every reset of the list. This seems excessive.
Instead - in analogy to most other models - make it a single
global object.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 3 insertions, 3 deletions

diff --git a/qt-models/yearlystatisticsmodel.cpp b/qt-models/yearlystatisticsmodel.cpp
index 9cbb19a1d..c83a803c2 100644
--- a/qt-models/yearlystatisticsmodel.cpp
+++ b/qt-models/yearlystatisticsmodel.cpp
@@ -187,7 +187,7 @@ void YearlyStatisticsModel::update_yearly_stats()
 			month++;
 		}
 		rootItem->children.append(item);
-		item->parent = rootItem;
+		item->parent = rootItem.get();
 	}
 
 
@@ -199,7 +199,7 @@ void YearlyStatisticsModel::update_yearly_stats()
 			iChild->parent = item;
 		}
 		rootItem->children.append(item);
-		item->parent = rootItem;
+		item->parent = rootItem.get();
 	}
 
 	/* Show the statistic sorted by dive type */
@@ -213,6 +213,6 @@ void YearlyStatisticsModel::update_yearly_stats()
 			iChild->parent = item;
 		}
 		rootItem->children.append(item);
-		item->parent = rootItem;
+		item->parent = rootItem.get();
 	}
 }