prefuse.action.layout
Class CollapsedSubtreeLayout

java.lang.Object
  prefuse.activity.Activity
      prefuse.action.Action
          prefuse.action.GroupAction
              prefuse.action.layout.Layout
                  prefuse.action.layout.CollapsedSubtreeLayout

public class CollapsedSubtreeLayout
extends Layout

Layout Action that sets the positions for newly collapsed or newly expanded nodes of a tree. This action updates positions such that nodes flow out from their parents or collapse back into their parents upon animated transitions.

Author:

jeffrey heer

Field Summary

Fields inherited from class prefuse.action.layout.Layout

m_anchor, m_bounds, m_bpts, m_insets, m_margin, m_tmpa, m_tmpb

Fields inherited from class prefuse.action.GroupAction

m_group

Fields inherited from class prefuse.action.Action

m_vis

Fields inherited from class prefuse.activity.Activity

DEFAULT_STEP_TIME, INFINITY

Constructor Summary

CollapsedSubtreeLayout(java.lang.String group)
Create a new CollapsedSubtreeLayout.

CollapsedSubtreeLayout(java.lang.String group, int orientation)
Create a new CollapsedSubtreeLayout.

Method Summary

int	getOrientation() Get the layout orientation, determining which point nodes will collapse or exapnd from.
void	run(double frac) Runs this Action, triggering whatever processing this Action performs.
void	setOrientation(int orientation) Set the layout orientation, determining which point nodes will collapse or exapnd from.

Methods inherited from class prefuse.action.layout.Layout

getLayoutAnchor, getLayoutBounds, setLayoutAnchor, setLayoutBounds, setMargin, setX, setY

Methods inherited from class prefuse.action.GroupAction

getGroup, setGroup

Methods inherited from class prefuse.action.Action

getVisualization, run, setVisualization

Methods inherited from class prefuse.activity.Activity

addActivityListener, alwaysRunAfter, cancel, fireActivityCancelled, fireActivityFinished, fireActivityScheduled, fireActivityStarted, fireActivityStepped, getDuration, getNextTime, getPace, getPacingFunction, getStartTime, getStepTime, getStopTime, isEnabled, isRunning, isScheduled, removeActivityListener, run, runAfter, runAt, setDuration, setEnabled, setPacingFunction, setStartTime, setStepTime

Methods inherited from class java.lang.Object

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

Constructor Detail

CollapsedSubtreeLayout

public CollapsedSubtreeLayout(java.lang.String group)

Create a new CollapsedSubtreeLayout. By default, nodes will collapse to the center point of their parents.

Parameters:

group - the data group to layout (only newly collapsed or newly expanded items will be considered, as determined by their current visibility settings).

CollapsedSubtreeLayout

public CollapsedSubtreeLayout(java.lang.String group,
                              int orientation)

Create a new CollapsedSubtreeLayout.

Parameters:

group - the data group to layout (only newly collapsed or newly expanded items will be considered, as determined by their current visibility settings).

orientation - the layout orientation, determining which point nodes will collapse/expand from. Valid values are Constants.ORIENT_CENTER, Constants.ORIENT_LEFT_RIGHT, Constants.ORIENT_RIGHT_LEFT, Constants.ORIENT_TOP_BOTTOM, and Constants.ORIENT_BOTTOM_TOP.

Method Detail

getOrientation

public int getOrientation()

Get the layout orientation, determining which point nodes will collapse or exapnd from. Valid values are Constants.ORIENT_CENTER, Constants.ORIENT_LEFT_RIGHT, Constants.ORIENT_RIGHT_LEFT, Constants.ORIENT_TOP_BOTTOM, and Constants.ORIENT_BOTTOM_TOP.

Returns:

the layout orientation

setOrientation

public void setOrientation(int orientation)

Set the layout orientation, determining which point nodes will collapse or exapnd from. Valid values are Constants.ORIENT_CENTER, Constants.ORIENT_LEFT_RIGHT, Constants.ORIENT_RIGHT_LEFT, Constants.ORIENT_TOP_BOTTOM, and Constants.ORIENT_BOTTOM_TOP.

Parameters:

orientation - the layout orientation to use

run

public void run(double frac)

Description copied from class: Action

Runs this Action, triggering whatever processing this Action performs. Subclass this method to create custom Actions.

Specified by:

run in class GroupAction

Parameters:

frac - the fraction of this Action's duration that has elapsed.

See Also:

Action.run(double)