li.netcat.chart.util
Class AbstractPart

java.lang.Object
  li.netcat.chart.util.AbstractPart

All Implemented Interfaces:

Part

Direct Known Subclasses:

BorderPart, GraphPart, GridPart, PanelPart, PerspectivePart, TextPart

public abstract class AbstractPart

extends java.lang.Object

implements Part

This class should be used as the abstract super class of all Parts. It basically holds the chart context and implements some members of the Part interface.

Author:

Arthur Marxer

See Also:

Part, Chart

Field Summary

static java.lang.Object	BACKGROUND Equal to ChartConstants.BACKGROUND
static java.lang.Object	FOREGROUND Equal to ChartConstants.FOREGROUND
static java.lang.Object	PERSPECTIVE Equal to ChartConstants.PERSPECTIVE

Constructor Summary

AbstractPart()
Constructs a new instance of an AbstractPart using null as chart context.

Method Summary

Chart	getChart() Returns the chart context.
java.lang.Object	getPerspective() Returns the perspective position of this part.
void	invalidate() Calls invalidate() on the chart context if it's not null.
void	setChart(Chart chart) Sets the container of this part.
void	setPerspective(java.lang.Object perspective) Sets the perspective position of this part.

Methods inherited from class java.lang.Object

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

Methods inherited from interface li.netcat.chart.Part

getLayout

Field Detail

FOREGROUND

public static final java.lang.Object FOREGROUND

Equal to ChartConstants.FOREGROUND

BACKGROUND

public static final java.lang.Object BACKGROUND

Equal to ChartConstants.BACKGROUND

PERSPECTIVE

public static final java.lang.Object PERSPECTIVE

Equal to ChartConstants.PERSPECTIVE

Constructor Detail

AbstractPart

public AbstractPart()

Constructs a new instance of an AbstractPart using null as chart context.

Method Detail

invalidate

public void invalidate()

Calls invalidate() on the chart context if it's not null.

getChart

public Chart getChart()

Returns the chart context. The chart context is set when the part is added to a Chart.

Returns:

The current chart context, or null if this Part is not added to a Chart.

getPerspective

public java.lang.Object getPerspective()

Returns the perspective position of this part. The value FOREGROUND will paint this part in the front of a perspective view, BACKGROUND in the back and PERSPECTIVE will foreshorten it.

Returns:

The perspective position of this part. Might be FOREGROUND, BACKGROUND, PERSPECTIVE or an other custom value.

See Also:

PerspectivePart

setPerspective

public void setPerspective(java.lang.Object perspective)

Sets the perspective position of this part. The value FOREGROUND will paint this part in the front of a perspective view, BACKGROUND in the back and PERSPECTIVE will foreshorten it.

Parameters:

perspective - The perspective position of this part. Might be FOREGROUND, BACKGROUND, PERSPECTIVE or an other custom value.

See Also:

PerspectivePart

setChart

public void setChart(Chart chart)

Description copied from interface: Part

Sets the container of this part. This method should not be called by custom code. It gets called when this Part is added to a chart by calling chart.setContent(part);. Implementers of parts must keep this reference and invoke for example chart.invalidate() when a property in this part changes.

Specified by:

setChart in interface Part

Parameters:

chart - The new chart container, can also be null.