Preference dialogue for scheduler GUI

Colors and sizes

added Scheduling GUI label

One can use QSettings for storing and retrieving preferences.

https://doc.qt.io/qtforpython-5/PySide2/QtCore/QSettings.html

QSettings is already configured and in use. The settings are saved in memory and later also to a file (see logfile), at the latest on application exit. Use with:

s = QSettings() # will use application settings
size = s.value("mainwindow/size", QSize(800, 600)) # QSize(800, 600) is fallback value, i.e. first application run
s.setValue("mainwindow/size", self.size())

Some values need to be collected from QSettings with an additional type parameter as QSettings cant handle all Pythons datatypes.

s.value("mainwindow/menu/node_info", True, bool) # QSettings stores 'true/false' which is a c++ datatype

Thanks! Yes, that is where I saw it.

added Enhancement label

mentioned in issue #140 (closed)

mentioned in merge request !148 (merged)

changed milestone to %Autumn version

mentioned in merge request !324 (merged)

changed milestone to %Summer 2024

assigned to @robal695

mentioned in merge request !455 (closed)