Class RectangleFigure

All Implemented Interfaces:
CompositableFigure, ConnectableFigure, Figure, FillableFigure, HideableFigure, LockableFigure, PathIterableFigure, RectangularFigure, ResizableFigure, StrokableFigure, StyleableFigure, TransformableFigure, TransformCachingFigure, PropertyBean, StyleableBean, StyleablePropertyBean, TreeNode<Figure>

Renders a javafx.scene.shape.Rectangle.
Author:
Werner Randelshofer
  • Field Details

  • Constructor Details

    • RectangleFigure

      public RectangleFigure()
    • RectangleFigure

      public RectangleFigure(double x, double y, double width, double height)
    • RectangleFigure

      public RectangleFigure(javafx.geometry.Rectangle2D rect)
  • Method Details

    • getPathIterator

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

      public @Nullable Connector findConnector(javafx.geometry.Point2D p, Figure prototype, double tolerance)
      Description copied from interface: ConnectableFigure
      Gets a connector for this figure at the given location.
      Specified by:
      findConnector in interface ConnectableFigure
      Parameters:
      p - the location of the connector in local coordinates.
      prototype - The connecting figure or null if unknown. This allows for specific connectors for different connection figures.
      tolerance - tolerance in world coordinates
      Returns:
      Returns the connector. Returns null if there is no connector at the given location.
    • getTypeSelector

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