Undo: implement undo of dive site editing

This one is a bit more tricky. There are two modes: set dive site
and set newly created dive site. This is realized using an OO model
with derived classed. Quite convoluted - but it seems to work.

Moreover, editing a dive site is not simply setting a value,
but the list of dives in a dive site has to be kept up to date.

Finally, we have to inform the dive site list of the changed
number of dives. Therefore add a new signal diveSiteDivesChanged.
To send only one signal per dive site, hook into the undo() and
redo() functions and call the functions of the base class there.

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

1 files changed, 10 insertions, 0 deletions

diff --git a/desktop-widgets/command.cpp b/desktop-widgets/command.cpp
index c178c408a..a901d9e48 100644
--- a/desktop-widgets/command.cpp
+++ b/desktop-widgets/command.cpp
@@ -165,4 +165,14 @@ void editWaterTemp(const QVector<dive *> dives, int newValue, int oldValue)
 	execute(new EditWaterTemp(dives, newValue, oldValue));
 }
 
+void editDiveSite(const QVector<dive *> dives, struct dive_site *newValue, struct dive_site *oldValue)
+{
+	execute(new EditDiveSite(dives, newValue, oldValue));
+}
+
+void editDiveSiteNew(const QVector<dive *> dives, const QString &newName, struct dive_site *oldValue)
+{
+	execute(new EditDiveSiteNew(dives, newName, oldValue));
+}
+
 } // namespace Command