Feature/project data

[bradyzp]

Feature/project-data branch PR

Summary

This branch brings in various quality of life improvements to the underlying project structure, with work on standardizing the model parent/child interface, standardizing icon resources and colors, and adding functionality to the project serialization classes. One of the major goals of this branch was to flatten the project structure - specifically to make DataSet's direct children of Flights, and to allow the linking of sensors (Gravimeters) to DataSet's. This is mostly accomplished, and the functionality now exists for sensors to be linked (and properly serialized) to a DataSet, however the UI components enabling this behavior have not been created yet.

Major Changes

• Flatten project structure by making DataSet's direct children of Flights
• Add 'Reference' class object to allow for reference-linking to other project model classes in a serializable way. This replaces the 'magic' parent attribute that some models were using, and allows other arbitrary references to be made (e.g. DataSets can link to a Gravimeter).
• Improve use of enumerations within the project, new Enum's added for Qt Icon paths, which define a single source of truth for using Icon resources within the project. DataType enumeration is now consistently used throughout the project, replacing any string 'gravity'/'trajectory' references.
• Improve Qt resource build script - resource_rc.py removed, and is now built on demand by the build_uic script, along with .ui xml files.
• Update parent/child interface definitions, and refactor descendant objects to conform to more uniform API. Also standardize the method for activating children objects (and updating their display attributes).
• Improved project Encoder/Decoder classes to use declarative method for defining serialization/de-serialization methods for non-project types.

Minor/Miscellaneous Changes

• Clean up test suite, removing unnecessary context.py, and moving any useful function into the pytest conftest.py module.
• move the show_in_explorer helper function to the controller_helpers module, and add support for linux systems using the 'xdg-open' program.
• Add enumeration for child 'StateColors' to standardize active/inactive UI highlighting and remove duplicate definitions throughout project.
• Add experimental clone tracking functionality to FlightController, any cloned instances are tracked via weak-reference, and are updated when the source controller is updated (allowing display updates to propagate).
• Added align_frame functionality to DataSetController - still need to determine the appropriate way to manage this, should the function be automatically called when new data-files are added, or should it require user interaction?

[coveralls]

Pull Request Test Coverage Report for Build 339

• 460 of 529 (86.96%) changed or added relevant lines in 23 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.2%) to 70.949%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
dgp/gui/workspaces/TransformTab.py	5	6	83.33%
dgp/core/models/meter.py	3	4	75.0%
dgp/core/controllers/flight_controller.py	53	54	98.15%
dgp/core/models/datafile.py	24	25	96.0%
dgp/core/models/project.py	46	49	93.88%
dgp/core/controllers/project_controllers.py	58	62	93.55%
dgp/gui/utils.py	4	10	40.0%
dgp/core/controllers/datafile_controller.py	16	22	72.73%
dgp/gui/views/project_tree_view.py	7	19	36.84%
dgp/core/controllers/project_treemodel.py	22	37	59.46%
<!--	Total:	460	529	86.96%	-->

Files with Coverage Reduction	New Missed Lines	%
dgp/core/controllers/project_treemodel.py	1	71.13%
<!--	Total:	1		-->

Totals
Change from base Build 323:	0.2%
Covered Lines:	2685
Relevant Lines:	3650

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💛 - Coveralls