Wumpus.Drawing.Connectors.Base

Connectors...

Documentation

type ConnectorPathQuery u = ConnectorQuery u (AbsPath u)

The type of Connectors - a query from start and end point returning an AbsPath.

type SpacingProjection u = ConnectorProps -> Point2 u -> Point2 u -> Query u (Point2 u)

data ArrowTip

Arrowhead algorithm - the components of an arrowhead.

Retract distance is rather vague - depending on the arrowhead it may represent a flush join between the path and the tip or a join that uses the z-order (tip over path) to create the join.

** WARNING ** - pending revision...

Constructors

ArrowTip

Fields

retract_distance :: En

tip_half_len :: En

tip_deco :: LocThetaGraphic En

type ArrowConnector u = ConnectorImage u (AbsPath u)

data ConnectorConfig u

total_path is the path before accounting for arrow retract distances.

Constructors

ConnectorConfig

Fields

conn_arrowl :: Maybe ArrowTip

conn_arrowr :: Maybe ArrowTip

conn_path_spec :: ConnectorPathSpec u

newtype ConnectorPathSpec u

Constructors

ConnectorPathSpec

Fields

getConnectorPathSpec :: ConnectorProps -> ConnectorPathQuery u

renderConnectorConfig :: (Real u, Floating u, InterpretUnit u) => ConnectorProps -> ConnectorConfig u -> ConnectorImage u (AbsPath u)

NOTE - the prefix render needs (re-) consideration...

If it is a good prefix other functions e.g. drawPath should use render rather than draw.

arrowDecoratePath :: (Real u, Floating u, InterpretUnit u) => Maybe ArrowTip -> Maybe ArrowTip -> AbsPath u -> Image u (AbsPath u)

leftArrowConnector :: (Real u, Floating u, InterpretUnit u) => ConnectorProps -> ConnectorPathSpec u -> ArrowTip -> ConnectorImage u (AbsPath u)

Shorthand...

rightArrowConnector :: (Real u, Floating u, InterpretUnit u) => ConnectorProps -> ConnectorPathSpec u -> ArrowTip -> ConnectorImage u (AbsPath u)

uniformArrowConnector :: (Real u, Floating u, InterpretUnit u) => ConnectorProps -> ConnectorPathSpec u -> ArrowTip -> ConnectorImage u (AbsPath u)