Filter: implement reset filter

Move initialization to a separate function and connect that to the
reset button.

Two points of note:

1) Reseting the text-fields causes signals. Thus, signals have to
   be ignored during reset. Do this with a new flag.
2) To make reset of the from-date work, the from-date has to be
   initialized to a distinct value. Setting a default-constructed
   QDateTime leaves the widget unchanged.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/desktop-widgets/filterwidget2.h b/desktop-widgets/filterwidget2.h
index 23d08dd2a..2988fac67 100644
--- a/desktop-widgets/filterwidget2.h
+++ b/desktop-widgets/filterwidget2.h
@@ -28,10 +28,12 @@ public slots:
 	void updatePlanned(int value);
 	void updateLogged(int value);
 private slots:
+	void clearFilter();
 	void temperatureChanged();
 	void countsChanged();
 
 private:
+	bool ignoreSignal;
 	Ui::FilterWidget2 ui;
 	void filterDataChanged(const FilterData &data);
 	FilterData filterData;