The special setup for nicely-named groups which have a single
hidden subgroup containing the actual packages, has the problem
that there is a non-empty subgroups item, but this results
in zero actual children: then the number of selected and partly
selected children is also zero in updateSelected() and therefore
the item ends up unselected.
Special-case this to avoid unnecessarily unselecting the item.
Reported by Vitor L.
- point to main Calamares site in the 'part of' headers instead
of to github (this is the "this file is part of Calamares"
opening line for most files).
- remove boilerplate from all source files, CMake modules and completions,
this is the 3-paragraph summary of the GPL-3.0-or-later, which has
a meaning entirely covered by the SPDX tag.
- An unselected group with (some) selected subgroups was not
displayed as (semi)checked -- it was unchecked, because
its checked-ness was not updated based on the children.
- Instead of loading all in the constructor, provide a public
setupModelData().
- This allows creating the model and setting it for UI, before
the load completes.
- Add initial definition of Config object, which will extract the model-
setting and loading code from the page, and which is also prep-work
for a QML version of this module.
- While here, remove superfluous code
- Introduce convenience methods getString(), getBool() to pick
out an entry from item definitions in YAML format.
- Apply coding style.
- Pick up the "expanded" property as well.
- The model always has two columns, and the column names are always
the same. We don't need to specially set headers for that.
- Use QCoreApplication::translation() to re-use the existing
translations and avoid creating "new" strings (in a new context).
If a subgroup is hidden, then it should be considered
selected if its parent is selected or partially-selected.
If the parent group is totally unselected, then the hidden
subgroup shouldn't be installed either. This allows putting
required-packages into a group, without cluttering the
interface.
FIXES#864
