Cable Management

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The data-structure must have the following features:

• access of vertex / network / lines for a given cell
• insertion of vertices in existing networks (rebuild necessary)
• deletion of vertices and connected lines
• merging and splitting of networks (rebuild necessary)
• deletion of lines (including vertices if no references) (rebuild necessary)

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When deleting a vertex or line all neighbor vertices should be recursively put into a queue. Then the queue is processed to find the new networks. Network color = old color

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Actions

• Create new vertex with new network
• Insert vertex into existing network by splitting one cable
• Removing vertex from network (deletes adjacent lines or joins them if two, optionally splits network)
• Adding line between two vertices (optionally merges networks)
• Removing line between two vertices (optionally splits network, removes singleton vertices)

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• Clicking on a free cell creates a new vertex including new network (createVertexAction)
• Clicking on a line inserts a new vertex in the current network and splits line (insertVertexAction)
• Clicking and shift dragging a node (vertex) moves the vertex (moveNodeAction)
• Clicking and dragging a vertex creates a new line with moving end vertex at cursor while dragging (createVertexAction, createCableAction, moveNodeAction)

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Interactions with gates

• When dragging a vertex over a gate pin the vertex should be bound to the gate.
• When dragging a vertex away from a gate pin the vertex should be unbound from the gate.
• When moving a gate all bound vertices should be moved too.
• When shift + moving a gate all bound vertices should be disconnected.
• While moving the gate it should not connect to any vertices (floating -> extra buffer?)
• When dropping the gate at new location it should automatically connect to aligning vertices