Untangle DiveCalculatedCeiling from MainWindow

DiveCalculatedCeiling is the last class the references
MainWindow in the profile-widget stack.

In modelDataChanged() it looks for the information()
widget and sets a slot for the dateTimeChanged() signal that
information() emits.

To solve the issue we make DiveCalculatedCeiling recieve
a ProfileWidget2 reference and make ProfileWidget2 emit
the dateTimeChangedItems() signal.

ProfileWidget2 itself listens for the dateTimeChanged()
signal that information() emits and emits dateTimeChangedItems()
to notify any possible children/item listeners in the
ProfileWidget2::dateTimeChanged() slot.

The connection between ProfileWidget2 and information()
is set in MainWindow. This makes DiveCalculatedCeiling
unaware of MainWindow and which class originally emits
the dateTimeChanged() signal to ProfileWidget2.

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
--
Think delegation.

Tomaz, please take a look at this one, to double check
if i messed up.

also i have zero idea how the mobile app is setting these
connections, if it does so even.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/profile-widget/diveprofileitem.h b/profile-widget/diveprofileitem.h
index 0bba7f7a3..8f9a56f6e 100644
--- a/profile-widget/diveprofileitem.h
+++ b/profile-widget/diveprofileitem.h
@@ -21,6 +21,7 @@
  This is a generically item and should be used as a base for others, I think...
 */
 
+class ProfileWidget2;
 class DivePlotDataModel;
 class DiveTextItem;
 class DiveCartesianAxis;
@@ -175,7 +176,7 @@ class DiveCalculatedCeiling : public AbstractProfilePolygonItem {
 	Q_OBJECT
 
 public:
-	DiveCalculatedCeiling();
+	DiveCalculatedCeiling(ProfileWidget2 *profileWidget);
 	virtual void modelDataChanged(const QModelIndex &topLeft = QModelIndex(), const QModelIndex &bottomRight = QModelIndex());
 	virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
 	virtual void settingsChanged();
@@ -184,6 +185,9 @@ public
 slots:
 	void recalc();
 
+protected:
+	ProfileWidget2 *profileWidget;
+
 private:
 	bool is3mIncrement;
 };
@@ -200,7 +204,7 @@ public:
 class DiveCalculatedTissue : public DiveCalculatedCeiling {
 	Q_OBJECT
 public:
-	DiveCalculatedTissue();
+	DiveCalculatedTissue(ProfileWidget2 *profileWidget);
 	virtual void settingsChanged();
 };