gov.nasa.worldwind.util.tree
Class BasicTreeLayout.NodeLayout

java.lang.Object
  gov.nasa.worldwind.util.tree.BasicTreeLayout.NodeLayout

Enclosing class:

BasicTreeLayout

protected static class BasicTreeLayout.NodeLayout
extends Object

Class to hold information about how a tree node is laid out.

Field Summary

protected Rectangle	bounds Node bounds, relative to the bottom left corner of the tree.
protected 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 Rectangle	pickBounds
protected Rectangle	pickScreenBounds
protected 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 String	wrappedText Wrapped version of the node description text.

Constructor Summary

protected

BasicTreeLayout.NodeLayout(TreeNode node) Create a new node layout.

Method Summary

protected void

reset(Point treePoint) Reset the draw point to the lower left corner of the node bounds.

Methods inherited from class java.lang.Object

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

Field Detail

bounds

protected Rectangle bounds

Node bounds, relative to the bottom left corner of the tree.

drawPoint

protected 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.

node

protected TreeNode node

Node that this layout applies to.

numLines

protected int numLines

Number of lines of wrapped description text in this layout.

pickBounds

protected Rectangle pickBounds

pickScreenBounds

protected Rectangle pickScreenBounds

screenBounds

protected Rectangle screenBounds

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

textWrapWidth

protected int textWrapWidth

The width used to wrap the description text.

wrappedText

protected String wrappedText

Wrapped version of the node description text. Computed once and then cached here.

Constructor Detail

BasicTreeLayout.NodeLayout

protected BasicTreeLayout.NodeLayout(TreeNode node)

Create a new node layout.

Parameters:

node - Node that is being laid out.

Method Detail

reset

protected void reset(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).