Package org.jgraph.graph

Class PortView

java.lang.Object
org.jgraph.graph.AbstractCellView
org.jgraph.graph.PortView
All Implemented Interfaces:
Serializable, CellView
public class PortView extends AbstractCellView
The default implementation of a port view.
See Also:

  • Field Details

    • SIZE

      public static transient int SIZE
      Default size for all ports is 6.

    • renderer

      public static transient PortRenderer renderer
      Renderer for the class.

    • allowPortMagic

      public static boolean allowPortMagic
      Controls if port magic should be allowed. Default is true. This is an easy switch to disable port magic for all instances of graphs.

    • lastParent

      protected transient CellView lastParent
      Cache of the last valid parent. //FIX: Better solution?

  • Constructor Details

    • PortView

      public PortView()
      Constructs an empty portview.

    • PortView

      public PortView(Object cell)
      Constructs a view that holds a reference to the specified cell, anchor and parent vertex.
      Parameters:
      cell - reference to the cell in the model

  • Method Details

    • getParentView

      public CellView getParentView()
      This method ensures a non-null value. If the super method returns null then the last valid parent is returned. Note: If a vertex is removed, all ports will be replaced in connected edges. The ports are replaced by the center point of the last valid vertex view.
      Specified by:
      getParentView in interface CellView
      Overrides:
      getParentView in class AbstractCellView
      Returns:
      the parent view for this view

    • getBounds

      public Rectangle2D getBounds()
      Returns the bounds for the port view.
      Specified by:
      getBounds in interface CellView
      Overrides:
      getBounds in class AbstractCellView

    • getRenderer

      public CellViewRenderer getRenderer()
      Returns a renderer for the class.
      Specified by:
      getRenderer in class AbstractCellView
      Returns:
      the renderer instance for this view

    • getHandle

      public CellHandle getHandle(GraphContext context)
      Returns null.
      Specified by:
      getHandle in interface CellView
      Specified by:
      getHandle in class AbstractCellView
      Parameters:
      context - the context of this cell view (cells indirectly affected by it)
      Returns:
      the cell handle for this view

    • getLocation

      public Point2D getLocation()
      Shortcut method to getLocation(null, null)

    • getLocation

      public Point2D getLocation(EdgeView edge)
      For backwards compatibility.

    • getLocation

      public Point2D getLocation(EdgeView edge, Point2D nearest)
      Returns the point that the port represents with respect to edge and point, which is the nearest point to this port view on the edge. edge and point may be null.

    • shouldInvokePortMagic

      protected boolean shouldInvokePortMagic(EdgeView edge)
      Subclassers can override this to decide whether or not "port magic" should appear on a given edge. (Port magic means the port tries to make the edge horizontal or vertical if the closest control point lies within the bounds of the parent vertex.)

    • getPortSize

      public int getPortSize()
      Returns:
      the port size

    • setPortSize

      public void setPortSize(int size)
      Parameters:
      size - the port size to set