Module org.jhotdraw8.draw
Package org.jhotdraw8.draw.figure

Class LineConnectionFigure

java.lang.Object
org.jhotdraw8.fxbase.styleable.AbstractStyleablePropertyBean
org.jhotdraw8.draw.figure.AbstractFigure
org.jhotdraw8.draw.figure.AbstractLeafFigure
org.jhotdraw8.draw.figure.AbstractLineConnectionFigure
org.jhotdraw8.draw.figure.LineConnectionFigure
All Implemented Interfaces:
CompositableFigure, ConnectingFigure, Figure, HideableFigure, LineConnectingFigure, LockableFigure, NonTransformableFigure, PathIterableFigure, StrokableFigure, StyleableFigure, TransformCachingFigure, PropertyBean, StyleableBean, StyleablePropertyBean, TreeNode<Figure>
public class LineConnectionFigure extends AbstractLineConnectionFigure implements StrokableFigure, HideableFigure, StyleableFigure, LockableFigure, CompositableFigure, PathIterableFigure
A figure which draws a line connection between two figures.
Author:
Werner Randelshofer

  • Field Details

    • TYPE_SELECTOR

      public static final String TYPE_SELECTOR
      The CSS type selector for this object is "LineConnection".
      See Also:

  • Constructor Details

    • LineConnectionFigure

      public LineConnectionFigure()

    • LineConnectionFigure

      public LineConnectionFigure(javafx.geometry.Point2D start, javafx.geometry.Point2D end)

    • LineConnectionFigure

      public LineConnectionFigure(double startX, double startY, double endX, double endY)

  • Method Details

    • createHandles

      public void createHandles(HandleType handleType, List<Handle> list)
      Description copied from interface: Figure
      Creates handles of the specified level and adds them to the provided list.
      Specified by:
      createHandles in interface Figure
      Parameters:
      handleType - The desired handle type
      list - The handles.

    • createNode

      public javafx.scene.Node createNode(RenderContext drawingView)
      Description copied from interface: Figure
      This method is invoked by a RenderContext, when it needs a node to create a JavaFX scene graph for a figure.

      A typical implementation should look like this: 

      
 public Node createNode(RenderContext v) {
 return new ...desired subclass of Node...();
 }

      A figure may be rendered with multiple RenderContexts simultaneously. Each RenderContext uses this method to instantiate a JavaFX node for the figure and associate it to the figure.

      This method must create a new instance because returning an already existing instance may cause undesired side effects on other RenderContexts.

      Note that by convention this method may only be invoked by a RenderContext object.

      Specified by:
      createNode in interface Figure
      Parameters:
      drawingView - the renderer which will use the node
      Returns:
      the newly created node

    • getTypeSelector

      public String getTypeSelector()
      Specified by:
      getTypeSelector in interface StyleableBean

    • updateNode

      public void updateNode(RenderContext ctx, javafx.scene.Node node)
      Description copied from interface: Figure
      This method is invoked by a RenderContext, when it needs to update the node which represents the scene graph in the figure.

      A figure which is composed from child figures, must addChild the nodes of its getChildren to its node. This ensures that coordinate space transformations of the composed figure are properly propagated to its getChildren. 

       public void updateNode(RenderContext rc, Node n) {
     ObservableList<Node> group = ((Group) n).getChildren();
 group.clear();
 for (Figure child : children()) {
 group.addChild(rc.getNode(child));
 }

      A figure may be shown in multiple RenderContexts. Each RenderContext uses this method to update the a JavaFX node for the figure.

      Note that the figure must retrieve the JavaFX node from other figures from the render context by invoking rc.getNode(child) rather than creating new nodes using child.createNode(rc). This convention allows to implement a cache in the render context for the Java FX node. Also, render contexts like a drawing view need to associate input events on Java FX nodes to the corresponding figure.

      This figure does not keep track of changes that require node updates. DrawingModel to manage node updates.

      Specified by:
      updateNode in interface Figure
      Parameters:
      ctx - the render context
      node - the node which was created with Figure.createNode(org.jhotdraw8.draw.render.RenderContext)

    • getPathIterator

      public PathIterator getPathIterator(RenderContext ctx, @Nullable AffineTransform tx)
      Specified by:
      getPathIterator in interface PathIterableFigure

    • layout

      public void layout(RenderContext ctx)
      Description copied from interface: Figure
      Updates the layout of this figure, based on the layout of its children and the layout of observed layout subjects.

      If the layout of this figure depends on the layout of other figures, then calling layout on this figure will only result in the correct result, if layout of the other figures has been performed first.

      A figure does not keep track of changes that require layout updates. Use DrawingModel to manage layout updates.

      The default implementation is empty.

      To layout a drawing use Drawing.layoutAll(RenderContext).

      Specified by:
      layout in interface Figure
      Parameters:
      ctx - the render context (optional)