Finally got nix build to work and thus even make the app installable
again now that I've switched to a mostly rust backend. I needed to add
cargoSetupHook and rustPlatform to the buildInputs.
The basic functions are all working properly. Now the model works by
using diesel to connect the sql database and retrieve all the items
and organize them. Then it'll ensure any additions and deletions are
correct and happen first on the database before adding them to the
model.
There is still a C++ proxyModel inbetween QML and Rust, but
this proxyModel interfaces with the Rust model instead of the C++
SqlTableModel.
Updated a lot of things to include ffmpeg_6-full so that we can use
some of the latest ffmpeg features and include ffmpeg-next in our rust
project.
Then some of the environment pieces were missing for ffmpeg-next to build.
Since every slide is asking for their own, we don't need to loop
through all slides, we just use the index to put the thumbnail into
the right slides and emit data changed.
This will make it easier to ensure we are always using the appropriate
data type in the DataChanged signal since we won't need to hand pass
i32s around and instead define them once in the function get_role.
slide_model.rs activate function now properly tells of the data that
was changed so that ListViews that use it as a model will reset their
data properly on changes.
The important parts were to ensure we are using the right indexes for
top_left and bottom_right. Then also ensure the roles are correct, but
I think I had that already, just went with the implementation that
CXX-Qt used in their examples.
While the previous function technically worked, the connections
weren't setup properly. Also the row_count function wasn't running
because it requires a QModelIndex parameter. Added a simple count
function to make sure we know how many slides there are in QML.
