org.jplot2d.env

Class PlotEnvironment

java.lang.Object

org.jplot2d.env.Environment

org.jplot2d.env.PlotEnvironment

Direct Known Subclasses:

RenderEnvironment

public class PlotEnvironment
extends Environment

This Environment can host a plot instance and provide undo/redo ability.

Constructor Summary

Constructors

Constructor and Description
PlotEnvironment(boolean threadSafe)

Method Summary

Modifier and Type	Method and Description
boolean	canRedo() Returns true if undo is possible.
boolean	canUndo() Returns true if undo is possible.
Notifier	getNotifier() Returns the notifier of this environment.
Plot	getPlot()
Plot	getPlotAt(java.awt.geom.Point2D dp) Return the most inner plot that contains the given location.
PComponent	getSelectableCompnentAt(java.awt.geom.Point2D dp) Return the top selectable component at the given location.
int	getUndoLevels() Returns the maximum number of reversible operations.
void	redo() Undo the last change.
void	setNotifier(Notifier notifier) Sets the notifier of this environment.
void	setPlot(Plot plot) Sets a plot to this environment.
void	setPlot(Plot plot, Notifier notifier) Sets a plot to this environment.
void	setUndoLevels(int levels) Sets the maximum number of reversible operations.
void	undo() Undo the last change.

Methods inherited from class org.jplot2d.env.Environment

addElementChangeListener, beginBatch, endBatch, endBatch, getCommandLogger, getElementChangeListeners, getProxy, removeElementChangeListener, setCommandLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

PlotEnvironment

public PlotEnvironment(boolean threadSafe)

Method Detail

setPlot

public void setPlot(Plot plot)

Sets a plot to this environment. The plot must hosted by a dummy environment. All notices are logged to java logging facilities.

Parameters:

plot -

setPlot

public void setPlot(Plot plot,
                    Notifier notifier)

Sets a plot to this environment. The plot must hosted by a dummy environment.

Parameters:

plot -

notifier - the notifier to receive and process notices

getPlot

public Plot getPlot()

getNotifier

public Notifier getNotifier()

Returns the notifier of this environment. The notifier will receive notices during command execution and process all notices at once when command finished.

Returns:

the notifier of this environment

setNotifier

public void setNotifier(Notifier notifier)

Sets the notifier of this environment. The notifier will receive notices during command execution and process all notices at once when command finished.

Parameters:

notifier - the notifier to be used in this environment

getUndoLevels

public int getUndoLevels()

Returns the maximum number of reversible operations.

Returns:

the maximum number of reversible operations

setUndoLevels

public void setUndoLevels(int levels)

Sets the maximum number of reversible operations.

Parameters:

levels - the maximum number of reversible operations

canUndo

public boolean canUndo()

Returns true if undo is possible.

Returns:

canRedo

public boolean canRedo()

Returns true if undo is possible.

Returns:

undo

public void undo()

Undo the last change. If there is nothing to undo, an exception is thrown.

redo

public void redo()

Undo the last change. If there is nothing to undo, an exception is thrown.

getSelectableCompnentAt

public PComponent getSelectableCompnentAt(java.awt.geom.Point2D dp)

Return the top selectable component at the given location.

Parameters:

dp - the device point relative to top-left corner.

Returns:

getPlotAt

public Plot getPlotAt(java.awt.geom.Point2D dp)

Return the most inner plot that contains the given location.

Parameters:

dp - the device point relative to top-left corner.

Returns: