jsky.timeline
Class DefaultTimeLineModel

java.lang.Object
  jsky.timeline.DefaultTimeLineModel

All Implemented Interfaces:

TimeLineModel

public class DefaultTimeLineModel
extends java.lang.Object
implements TimeLineModel

The default model of a time line.

This code was developed by NASA, Goddard Space Flight Center, Code 588 for the Scientist's Expert Assistant (SEA) project.

Version:

12/27/99

Author:

M. Fishman

Field Summary

protected java.util.List	_changeListeners
protected java.util.Comparator	_comparator
protected java.util.TreeSet	_nodes
protected java.beans.PropertyChangeListener	fMyChildListener

Fields inherited from interface jsky.timeline.TimeLineModel

ALL_NODES_REMOVED, NODE_ADDED, NODE_REMOVED

Constructor Summary

DefaultTimeLineModel(int interval)
constructor

DefaultTimeLineModel(int start, int end, int intervals)
constructor

DefaultTimeLineModel(Time start, Time end, int intervals)
constructor

Method Summary

void	addPropertyChangeListener(java.beans.PropertyChangeListener listener) add a property change listener to the time line.
void	addTimeLineNode(TimeLineNodeModel node) add a time line node to the time line without checking its legality
boolean	contains(TimeLineNodeModel model) returns whether or not the model contains the specified node
protected void	firePropertyChange(java.beans.PropertyChangeEvent evt) fires a change event to all listeners of the timeline
java.util.Date	getDateForTime(Time time) takes a time and converts it into a date where the new date is equal to the start date + the time
Time	getEndTime() get the ending value of the timeline
int	getIntervalCount() get the number of intervals in the time line
java.util.Date	getStartDate() get the start date
Time	getStartTime() get the starting value in the timeline
Time	getTimeForDate(java.util.Date date) takes a date and convert it to a time where the new time is equal to the date - start date
java.util.Iterator	getTimeLineNodesIterator() get an iterator for the time line node models
void	removeAllTimeLineNodes() remove all time line nodes from time line
void	removePropertyChangeListener(java.beans.PropertyChangeListener listener) remove a property change listener from the time line
void	removeTimeLineNode(TimeLineNodeModel node) remove a time line node from the time line
void	setStartDate(java.util.Date date) set the date from which the timeline should start Note: if the date is not null then all time values are considered offsets from it

Methods inherited from class java.lang.Object

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

Field Detail

_comparator

protected java.util.Comparator _comparator

_nodes

protected java.util.TreeSet _nodes

_changeListeners

protected java.util.List _changeListeners

fMyChildListener

protected java.beans.PropertyChangeListener fMyChildListener

Constructor Detail

DefaultTimeLineModel

public DefaultTimeLineModel(int interval)

constructor

Parameters:

interval - the number of intervals in a 50 minute time line

DefaultTimeLineModel

public DefaultTimeLineModel(int start,
                            int end,
                            int intervals)

constructor

Parameters:

start - the starting minute of the timeline

end - the ending minute of the timeline

intervals - the number of intervals on the timeline

DefaultTimeLineModel

public DefaultTimeLineModel(Time start,
                            Time end,
                            int intervals)

constructor

Parameters:

start - the starting time of the timeline

end - the ending time of the timeline

intervals - the number of intervals on the timeline

Method Detail

addTimeLineNode

public void addTimeLineNode(TimeLineNodeModel node)

add a time line node to the time line without checking its legality

Specified by:

addTimeLineNode in interface TimeLineModel

removeTimeLineNode

public void removeTimeLineNode(TimeLineNodeModel node)

remove a time line node from the time line

Specified by:

removeTimeLineNode in interface TimeLineModel

removeAllTimeLineNodes

public void removeAllTimeLineNodes()

remove all time line nodes from time line

Specified by:

removeAllTimeLineNodes in interface TimeLineModel

getIntervalCount

public int getIntervalCount()

get the number of intervals in the time line

Specified by:

getIntervalCount in interface TimeLineModel

getTimeLineNodesIterator

public java.util.Iterator getTimeLineNodesIterator()

get an iterator for the time line node models

Specified by:

getTimeLineNodesIterator in interface TimeLineModel

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

add a property change listener to the time line.

Specified by:

addPropertyChangeListener in interface TimeLineModel

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

remove a property change listener from the time line

Specified by:

removePropertyChangeListener in interface TimeLineModel

getDateForTime

public java.util.Date getDateForTime(Time time)

takes a time and converts it into a date where the new date is equal to the start date + the time

Specified by:

getDateForTime in interface TimeLineModel

getTimeForDate

public Time getTimeForDate(java.util.Date date)

takes a date and convert it to a time where the new time is equal to the date - start date

Specified by:

getTimeForDate in interface TimeLineModel

setStartDate

public void setStartDate(java.util.Date date)

set the date from which the timeline should start Note: if the date is not null then all time values are considered offsets from it

Specified by:

setStartDate in interface TimeLineModel

getStartDate

public java.util.Date getStartDate()

get the start date

Specified by:

getStartDate in interface TimeLineModel

getStartTime

public Time getStartTime()

get the starting value in the timeline

Specified by:

getStartTime in interface TimeLineModel

getEndTime

public Time getEndTime()

get the ending value of the timeline

Specified by:

getEndTime in interface TimeLineModel

firePropertyChange

protected void firePropertyChange(java.beans.PropertyChangeEvent evt)

fires a change event to all listeners of the timeline

contains

public boolean contains(TimeLineNodeModel model)

returns whether or not the model contains the specified node

Specified by:

contains in interface TimeLineModel