Rendering changes

Refactoring
- LinkCanvasElement
  - Convert to .litcoffee
  - Trim intersection of link with nodes rather than just hiding the path underneath the nodes
- CanvasElement
  - Convert to .litcoffee
  - Can we reuse (share) stencils between instances?
- Test and refactor NodeCanvasElement
  - Bring under test
  - Convert to .litcoffee
- Test and refactor CanvasElementFactory
  - Bring under test
  - Convert to .litcoffee
- Test and refactor Canvas
  - Bring under test
  - Convert to .litcoffee
- LabelledStencil
  - Ensure external labels are displayed near the midpoint of a link's path
- Work through codebase, migrating variables and functions to private (i.e., prefixed with an underscore) where appropriate

Yeoman (migration from Hem)

Building an app ready for deployment

Investigate Heroku generator for Yeoman
Substitute almond for require.js in production? grunt-requirejs had support for this, but has been removed from yeoman as it was bloated and the author unresponsive.

Testing

Need a few end-to-end tests for core functionality
Add unit tests for LinkTool

Issues

Refactor Eugenia notation and retest
Don't update properties view when link tool is active?

Features

Live collaboration

Build a commander that communicates with Pusher (and wraps the Commander class, like LoggingCommander)
Switch palette editing to command-based API

Palette editor

Better error reporting for parsing of invalid JSON and EuGENia
Investigate Google prettify for highlighting JSON and EuGENia code
Graphical alternative to JSON / EuGENia metamodelling languages
Preview palette items (e.g. little icons next to names or a thumbnail shown when hovering)

Routing

Gracefully handle invalid ids in routes

Drawing export

Export drawing as SVG
Export model as XML / JSON

Links

Allow properties and labels
Arrowheads
- Trim links at the intersection with nodes
- Figure out the maths for determining which way the last curve of a path is facing

Palette constraints

Type constraints for links
Cardinality constraints for links

Conformance checking / migration

Implement the selection view properly
Update selection view when the selection in the canvas changes
Combo box that can change an element's type
Label that can restore deleted shapes to the palette
Problems model and marker rendering
NodeShape listener that adds markers when a used nodeshape is deleted

Allow more than one palette per drawing

Use case: switch between tabular and graphical view for seating plan DSL

Tools

Port tool (use case: associating guests with tables in the seating plan DSL)
Compartment tool