com.approximatrix.charting.render
Class AbstractChartRenderer

java.lang.Object
  com.approximatrix.charting.render.AbstractChartRenderer

All Implemented Interfaces:

Renderer

Direct Known Subclasses:

BarChartRenderer, InterpolationChartRenderer, LineChartRenderer, MultiScatterChartRenderer, PieChartRenderer, PlotChartRenderer, RadarChartRenderer, ScatterChartRenderer, StackedBarChartRenderer

public abstract class AbstractChartRenderer
extends java.lang.Object
implements Renderer

This class is the superclass for all the different ChartRenderer.

Version:

1.0

Author:

mueller armstrong

Field Summary

protected java.awt.Rectangle	bounds
protected CoordSystem	coord
protected javax.swing.event.EventListenerList	listener The listener list.
protected ChartDataModel	model
protected RowColorModel	rcm
protected boolean	stopFlag Flag indicating all rendering should be interrupted asap.

Constructor Summary

protected	AbstractChartRenderer(ChartDataModel model) Creates new AbstractChartRenderer
	AbstractChartRenderer(CoordSystem cs, ChartDataModel model) Creates new AbstractChartRenderer

Method Summary

void	addRenderChangeListener(RenderChangeListener l) Adds a RenderChangeListener.
void	clearRenderChangeListeners() Clears all RenderChangeListeners from the object
void	fireRenderChangeEvent() Protected function that fires a render change event, notifying any listeners that this renderable component needs to be redrawn.
java.awt.Rectangle	getBounds() Gets the bounds for this renderer.
ChartDataModel	getChartDataModel() Returns the ChartDataModel whose DataSets are rendered.
CoordSystem	getCoordSystem() Returns the current CoordSystem.
java.awt.Dimension	getPreferredSize() Returns the preferred size needed for the renderer.
RowColorModel	getRowColorModel() Returns the RowColorModel currently in use.
java.awt.geom.AffineTransform	getTransform(int axis) Returns the currently defined AffineTransform for any y-axis.
void	interruptRendering() Causes rendering to be interrupted.
void	removeRenderChangeListener(RenderChangeListener l) Removes a RenderChangeListener.
void	render(java.awt.Graphics2D g) Calls renderChart(g) and crops the output to the desired bounds.
abstract void	renderChart(java.awt.Graphics2D g) Finally renders the chart in the clipped rectangle.
protected void	resetStopFlag() Resets the stop rendering flag
void	setBounds(java.awt.Rectangle bounds) Sets the bounds the layout manager has assigned to this renderer.
void	setChartDataModel(ChartDataModel model) Sets the ChartDataModel whose DataSets are rendered.
void	setCoordSystem(CoordSystem cs) Sets the CoordSystem which contains the AffineTransforms to translate into pixel space.
void	setRowColorModel(RowColorModel rcm) Sets a RowColorModel to define the correlation of row titles and colors used for the Legend.

Methods inherited from class java.lang.Object

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

Field Detail

bounds

protected java.awt.Rectangle bounds

coord

protected CoordSystem coord

model

protected ChartDataModel model

rcm

protected RowColorModel rcm

stopFlag

protected volatile boolean stopFlag

Flag indicating all rendering should be interrupted asap.

listener

protected javax.swing.event.EventListenerList listener

The listener list.

Constructor Detail

AbstractChartRenderer

protected AbstractChartRenderer(ChartDataModel model)

Creates new AbstractChartRenderer

Parameters:

model - the DataModel that should be rendered

AbstractChartRenderer

public AbstractChartRenderer(CoordSystem cs,
                             ChartDataModel model)

Creates new AbstractChartRenderer

Parameters:

cs - the CoordSystem which contains the AffineTransforms to translate into pixel space

rcm - the RowColorModel that defines the correspondence between row titles and colors

model - the DataModel that should be rendered

Method Detail

getBounds

public java.awt.Rectangle getBounds()

Gets the bounds for this renderer.

Specified by:

getBounds in interface Renderer

Returns:

the bounds of this renderer. If setBounds has not been called before, the bounds computed from getPreferredSize is returned.

getPreferredSize

public java.awt.Dimension getPreferredSize()

Returns the preferred size needed for the renderer.

Specified by:

getPreferredSize in interface Renderer

Returns:

a non-null Dimension object

render

public void render(java.awt.Graphics2D g)

Calls renderChart(g) and crops the output to the desired bounds. This way you can manually set small maximum and minimum values which automatically gets reflected in the CoordSystem but the ChartRenderer doesn't need to care.

Specified by:

render in interface Renderer

Parameters:

g - the Graphics2D object in which to render

renderChart

public abstract void renderChart(java.awt.Graphics2D g)

Finally renders the chart in the clipped rectangle.

setBounds

public void setBounds(java.awt.Rectangle bounds)

Sets the bounds the layout manager has assigned to this renderer. Those, of course, have to be considered in the rendering process.

Specified by:

setBounds in interface Renderer

Parameters:

bounds - the new bounds for the renderer.

setChartDataModel

public void setChartDataModel(ChartDataModel model)

Sets the ChartDataModel whose DataSets are rendered.

Parameters:

model - the ChartDataModel

getChartDataModel

public ChartDataModel getChartDataModel()

Returns the ChartDataModel whose DataSets are rendered.

Returns:

a ChartDataModel which contains the Chart's data

getCoordSystem

public CoordSystem getCoordSystem()

Returns the current CoordSystem.

setCoordSystem

public void setCoordSystem(CoordSystem cs)

Sets the CoordSystem which contains the AffineTransforms to translate into pixel space.

Parameters:

cs - the new CoordSystem

getTransform

public java.awt.geom.AffineTransform getTransform(int axis)

Returns the currently defined AffineTransform for any y-axis.

Parameters:

axis - the y-axis to be used.

setRowColorModel

public void setRowColorModel(RowColorModel rcm)

Sets a RowColorModel to define the correlation of row titles and colors used for the Legend.

Parameters:

rcm - the RowColorModel

getRowColorModel

public RowColorModel getRowColorModel()

Returns the RowColorModel currently in use.

Returns:

a RowColorModel

fireRenderChangeEvent

public void fireRenderChangeEvent()

Protected function that fires a render change event, notifying any listeners that this renderable component needs to be redrawn.

Specified by:

fireRenderChangeEvent in interface Renderer

removeRenderChangeListener

public void removeRenderChangeListener(RenderChangeListener l)

Removes a RenderChangeListener.

Specified by:

removeRenderChangeListener in interface Renderer

Parameters:

l - the RenderChangeListener

addRenderChangeListener

public void addRenderChangeListener(RenderChangeListener l)

Adds a RenderChangeListener.

Specified by:

addRenderChangeListener in interface Renderer

Parameters:

l - the RenderChangeListener

clearRenderChangeListeners

public void clearRenderChangeListeners()

Clears all RenderChangeListeners from the object

Specified by:

clearRenderChangeListeners in interface Renderer

interruptRendering

public void interruptRendering()

Causes rendering to be interrupted.

resetStopFlag

protected void resetStopFlag()

Resets the stop rendering flag