Interface VisualVertex

  • All Superinterfaces:
    GVertex
    All Known Implementing Classes:
    AbstractVisualVertex, DockingVisualVertex

    public interface VisualVertex
    extends GVertex
    A vertex that contains properties and state related to a user interface.

    equals() and hashCode() - The graph API allows for cloning of layouts. For this to correctly copy layout locations, each edge must override equals and hashCode in order to properly find edges across graphs.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void dispose()
      A dispose method that should be called when a vertex is reclaimed, never again to be used in a graph or display
      double getAlpha()
      Get the alpha, which determines how much of the vertex is visible/see through.
      javax.swing.JComponent getComponent()
      Returns the component of this vertex.
      double getEmphasis()
      Returns the emphasis value of this vertex.
      java.awt.geom.Point2D getLocation()
      Returns the location of this vertex in the view
      boolean isFocused()
      Returns true if this vertex is focused (see setFocused(boolean)
      boolean isGrabbable​(java.awt.Component c)
      Returns true if the given component of this vertex is grabbable, which means that mouse drags on that component will move the vertex.
      boolean isHovered()
      Returns true if this vertex is being hovered by the mouse
      boolean isSelected()
      Returns true if this vertex is selected
      void setAlpha​(double alpha)
      Set the alpha, which determines how much of the vertex is visible/see through.
      void setEmphasis​(double emphasisLevel)
      Sets the emphasis value for this vertex.
      void setFocused​(boolean focused)
      Sets this vertex to be focused.
      void setHovered​(boolean hovered)
      Sets this vertex to be hovered
      void setLocation​(java.awt.geom.Point2D p)
      Sets the location of this vertex in the view
      void setSelected​(boolean selected)
      Sets this vertex selected
    • Method Detail

      • getComponent

        javax.swing.JComponent getComponent()
        Returns the component of this vertex. This is used for rendering and interaction with the user.
        Returns:
        the component of this vertex
      • setFocused

        void setFocused​(boolean focused)
        Sets this vertex to be focused. This differs from being selected in that multiple vertices in a graph can be selected, but only one can be the focused vertex.
        Parameters:
        focused - true to focus; false to be marked as not focused
      • isFocused

        boolean isFocused()
        Returns true if this vertex is focused (see setFocused(boolean)
        Returns:
        true if focused
      • setSelected

        void setSelected​(boolean selected)
        Sets this vertex selected
        Parameters:
        selected - true to select this vertex; false to de-select this vertex
      • isSelected

        boolean isSelected()
        Returns true if this vertex is selected
        Returns:
        true if this vertex is selected
      • setHovered

        void setHovered​(boolean hovered)
        Sets this vertex to be hovered
        Parameters:
        hovered - true to be marked as hovered; false to be marked as not hovered
      • isHovered

        boolean isHovered()
        Returns true if this vertex is being hovered by the mouse
        Returns:
        true if this vertex is being hovered by the mouse
      • setLocation

        void setLocation​(java.awt.geom.Point2D p)
        Sets the location of this vertex in the view
        Parameters:
        p - the location of this vertex in the view
      • getLocation

        java.awt.geom.Point2D getLocation()
        Returns the location of this vertex in the view
        Returns:
        the location of this vertex in the view
      • isGrabbable

        boolean isGrabbable​(java.awt.Component c)
        Returns true if the given component of this vertex is grabbable, which means that mouse drags on that component will move the vertex.

        This is used to differentiate components within a vertex that should receive mouse events versus those components that will not be given mouse events.

        Parameters:
        c - the component
        Returns:
        true if the component is grabbable
      • dispose

        void dispose()
        A dispose method that should be called when a vertex is reclaimed, never again to be used in a graph or display
      • setEmphasis

        void setEmphasis​(double emphasisLevel)
        Sets the emphasis value for this vertex. A value of 0 indicates no emphasis.
        Parameters:
        emphasisLevel - the emphasis
      • getEmphasis

        double getEmphasis()
        Returns the emphasis value of this vertex. 0 if not emphasized.
        Returns:
        the emphasis value of this vertex.
      • setAlpha

        void setAlpha​(double alpha)
        Set the alpha, which determines how much of the vertex is visible/see through. 0 is completely transparent. This attribute allows transitional for animations.
        Parameters:
        alpha - the alpha value
      • getAlpha

        double getAlpha()
        Get the alpha, which determines how much of the vertex is visible/see through. 0 is completely transparent. This attribute allows transitional for animations.
        Returns:
        the alpha value