Map: generate pixmap name in model

Experimentation has shown that the image of a flag will
only be changed after dataChanged() if it is a simple
property. The old code had a complex QML expression and
then - for some reason - it didn't work.

To give us better control over the flags and avoid full
reloads of the map therefore introduce a model-property
pixmap name. The name depends on whether the site is
selected and if not, whether we are in divesite-edit mode.
This makes the code rather convoluted. Firstly, we have
to save whether the site is selected in the map-item.
Secondly we have to access the global map-widget, which
in turn has to go to the map-widget helper (layering
violation!).

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

1 files changed, 6 insertions, 2 deletions

diff --git a/qt-models/maplocationmodel.h b/qt-models/maplocationmodel.h
index 3fb6f1da8..8cec08818 100644
--- a/qt-models/maplocationmodel.h
+++ b/qt-models/maplocationmodel.h
@@ -21,9 +21,10 @@ public:
 	static const char *PROPERTY_NAME_COORDINATE;
 	static const char *PROPERTY_NAME_DIVESITE;
 	static const char *PROPERTY_NAME_NAME;
+	static const char *PROPERTY_NAME_PIXMAP;
 
 	explicit MapLocation();
-	explicit MapLocation(struct dive_site *ds, QGeoCoordinate coord, QString name);
+	explicit MapLocation(struct dive_site *ds, QGeoCoordinate coord, QString name, bool selected);
 
 	QVariant getRole(int role) const;
 	QGeoCoordinate coordinate();
@@ -35,13 +36,16 @@ public:
 	enum Roles {
 		RoleDivesite = Qt::UserRole + 1,
 		RoleCoordinate,
-		RoleName
+		RoleName,
+		RolePixmap
 	};
 
 private:
 	struct dive_site *m_ds;
 	QGeoCoordinate m_coordinate;
 	QString m_name;
+public:
+	bool m_selected = false;
 
 signals:
 	void coordinateChanged();