Package diva.graph

Class BasicEdgeController

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      protected class  BasicEdgeController.EdgeDropper
      An inner class that handles interactive changes to connectivity.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addEdge​(java.lang.Object edge, java.lang.Object node, int end, double x, double y)
      Add an edge to this graph editor and render it from the given tail node to an autonomous site at the given location.
      void addEdge​(java.lang.Object edge, java.lang.Object tail, java.lang.Object head)
      Add an edge to this graph between the given tail and head nodes.
      void clearEdge​(java.lang.Object edge)
      Remove the figure for the given edge, but do not remove the edge from the graph model.
      Figure drawEdge​(java.lang.Object edge)
      Draw the edge and add it to the layer, establishing a two-way correspondence between the model and the view.
      ConnectorTarget getConnectorTarget()
      Get the target used to find sites on nodes to connect to.
      GraphController getController()
      Get the graph controller that this controller is contained in.
      Interactor getEdgeInteractor()
      Get the interactor given to edge figures.
      EdgeRenderer getEdgeRenderer()
      Return the edge renderer for this view.
      void removeEdge​(java.lang.Object edge)
      Remove the edge.
      Connector render​(java.lang.Object edge, FigureLayer layer, Site tailSite, Site headSite)
      Render the edge on the given layer between the two sites.
      void setConnectorTarget​(ConnectorTarget t)
      Set the target used to find sites on nodes to connect to.
      void setEdgeInteractor​(Interactor interactor)
      Set the interactor given to edge figures.
      void setEdgeRenderer​(EdgeRenderer er)
      Set the edge renderer for this view.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • BasicEdgeController

        public BasicEdgeController​(GraphController controller)
        Create a new edge controller with basic interaction. Specifically, this method creates an edge interactor and initializes its manipulator so that edges get attached appropriately. Furthermore, the edge interactor is initialized with the selection model of the graph controller. The manipulator is activated by either a regular click or a control click. Also initialize a basic connector target that generally attaches to the perimeter of nodes, except that it is smart enough to properly handle terminals.

    • Method Detail

      • addEdge

        public void addEdge​(java.lang.Object edge,
                    java.lang.Object node,
                    int end,
                    double x,
                    double y)
        Add an edge to this graph editor and render it from the given tail node to an autonomous site at the given location. Give the new edge the given semanticObject. The "end" flag is either HEAD_END or TAIL_END, from diva.canvas.connector.ConnectorEvent.
        Specified by:
        addEdge in interface EdgeController
        Throws:
        GraphException - If the connector target cannot return a valid site on the node's figure.
        See Also:
        ConnectorEvent

      • addEdge

        public void addEdge​(java.lang.Object edge,
                    java.lang.Object tail,
                    java.lang.Object head)
        Add an edge to this graph between the given tail and head nodes. Give the new edge the given semanticObject.
        Specified by:
        addEdge in interface EdgeController

      • clearEdge

        public void clearEdge​(java.lang.Object edge)
        Remove the figure for the given edge, but do not remove the edge from the graph model.
        Specified by:
        clearEdge in interface EdgeController

      • drawEdge

        public Figure drawEdge​(java.lang.Object edge)
        Draw the edge and add it to the layer, establishing a two-way correspondence between the model and the view. If the edge already has been associated with some figure in the view, then use any information in that figure to help draw the edge.
        Specified by:
        drawEdge in interface EdgeController

      • removeEdge

        public void removeEdge​(java.lang.Object edge)
        Remove the edge.
        Specified by:
        removeEdge in interface EdgeController

      • setConnectorTarget

        public void setConnectorTarget​(ConnectorTarget t)
        Set the target used to find sites on nodes to connect to. This sets the local connector target (which is often used to find the starting point of an edge) and the manipulator's connector target, which is used after the connector is being dragged.
        Specified by:
        setConnectorTarget in interface EdgeController