Package gov.nasa.worldwind.util.tree

Class BasicTreeLayout.NodeLayout

  • Enclosing class:
    BasicTreeLayout
    protected static class BasicTreeLayout.NodeLayout
extends java.lang.Object
    Class to hold information about how a tree node is laid out.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.awt.Rectangle bounds
      Node bounds, relative to the bottom left corner of the tree.
      protected java.awt.Point drawPoint
      Point at which the next component should be drawn.
      protected TreeNode node
      Node that this layout applies to.
      protected int numLines
      Number of lines of wrapped description text in this layout.
      protected java.awt.Rectangle pickBounds  
      protected java.awt.Rectangle pickScreenBounds  
      protected java.awt.Rectangle screenBounds
      Node bounds relative to the bottom left corner of the viewport.
      protected int textWrapWidth
      The width used to wrap the description text.
      protected java.lang.String wrappedText
      Wrapped version of the node description text.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected NodeLayout​(TreeNode node)
      Create a new node layout.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected void reset​(java.awt.Point treePoint)
      Reset the draw point to the lower left corner of the node bounds.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • node

        protected TreeNode node
        Node that this layout applies to.

      • bounds

        protected java.awt.Rectangle bounds
        Node bounds, relative to the bottom left corner of the tree.

      • pickBounds

        protected java.awt.Rectangle pickBounds

      • screenBounds

        protected java.awt.Rectangle screenBounds
        Node bounds relative to the bottom left corner of the viewport. This field is set by reset(java.awt.Point).

      • pickScreenBounds

        protected java.awt.Rectangle pickScreenBounds

      • wrappedText

        protected java.lang.String wrappedText
        Wrapped version of the node description text. Computed once and then cached here.

      • textWrapWidth

        protected int textWrapWidth
        The width used to wrap the description text.

      • numLines

        protected int numLines
        Number of lines of wrapped description text in this layout.

      • drawPoint

        protected java.awt.Point drawPoint
        Point at which the next component should be drawn. Nodes are drawn left to right, and the draw point is updated as parts of the node are rendered. For example, the toggle triangle is drawn first at the draw point, and then the draw point is moved to the right by the width of the triangle, so the next component will draw at the correct point. The draw point is reset to the lower left corner of the node bounds before each render cycle.

    • Constructor Detail

      • NodeLayout

        protected NodeLayout​(TreeNode node)
        Create a new node layout.
        Parameters:
        node - Node that is being laid out.

    • Method Detail

      • reset

        protected void reset​(java.awt.Point treePoint)
        Reset the draw point to the lower left corner of the node bounds.
        Parameters:
        treePoint - location of the lower left corner of the tree, measured in GL coordinates (origin lower left corner of the screen).