Marble/ModelView

ModelView framework in Marble

Marble uses Qt's Model/View framework as a way to signal updates in a model to interested parts. In that respect, a Model class can wrap any possible data.

Here is the list of Model classes, and a description of how they are used.

QAbstractItemModel

It represents the tree of elements corresponding to a .

It is used by the debug plugin (and is broken atm).

It represents a list of gpx data files represented as

This was originally intended to but used as the model for the File List View ( which is accessible by running marble with --enableFileView ) but has since been replaced by the FileViewModel.

The model is used as a member in the GpsLayer to hold the list of gpx files as a collection class and is deprecated. This, along with the whole current GPX implementation, needs to be removed and updated to the current concepts in Marble. See Gpx Status

It represents the GeoDataGeometry and the items of the last opened .

It is used by the to access the list of vector data and draw it.

QAbstractListModel

It represents the list of opened files. The signals it about the documents it opens or closes.

It is used by the and by a List widget in the .

It represents a list of . Only the uses it.

It is used by no other code.

It represents a list of Placemarks.

The appends all the placemarks contained in the it knows about in its instance.

The appends the list of placemarks that the Runners found in its instance.

It is used by the to provide a list of placemarks (either from the PlacemarkManager or from the MarbleRunnerManager).

It is also used by the to determine layouting on the map.