From 325b8bba35c339d626071b3feedbc6140774a725 Mon Sep 17 00:00:00 2001
From: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Date: Wed, 18 Jul 2018 19:31:59 +0200
Subject: Undo: remember deleted trip in UndoRemoveDivesFromTrip::undo()

If the last dive of a trip is removed, the trip is deleted.
On redo the dive is added to a non existing trip, leading to a
segfault.

Therefore, keep a copy of the trip to reinstate it on redo.
Note: this cannot work for a sequence of multiple commands.
One would have to rewrite the whole undo-history. Nevertheless,
let's do this as a stop-gap measure.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
---
 desktop-widgets/undocommands.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'desktop-widgets/undocommands.h')

diff --git a/desktop-widgets/undocommands.h b/desktop-widgets/undocommands.h
index f0626377c..1403b23bb 100644
--- a/desktop-widgets/undocommands.h
+++ b/desktop-widgets/undocommands.h
@@ -45,6 +45,7 @@ public:
 
 private:
 	QMap<struct dive*, dive_trip*> divesToUndo;
+	QList<struct dive_trip*> tripList;
 };
 
 #endif // UNDOCOMMANDS_H
-- 
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