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org.jfree.chart.block

Class EmptyBlock

Implemented Interfaces:
Block, Cloneable, Drawable, PublicCloneable, Serializable
public class EmptyBlock
extends AbstractBlock
implements Block, Cloneable, PublicCloneable, Serializable
An empty block with a fixed size.

Constructor Summary

EmptyBlock(double width, double height)
Creates a new block with the specified width and height.

Method Summary

Object
clone()
Returns a clone of the block.
void
draw(Graphics2D g2, Rectangle2D area)
Draws the block.
Object
draw(Graphics2D g2, Rectangle2D area, Object params)
Draws the block within the specified area.

Methods inherited from class org.jfree.chart.block.AbstractBlock

arrange, arrange, calculateTotalHeight, calculateTotalWidth, clone, drawBorder, equals, getBorder, getBounds, getContentXOffset, getContentYOffset, getFrame, getHeight, getID, getMargin, getPadding, getWidth, setBorder, setBorder, setBounds, setFrame, setHeight, setID, setMargin, setMargin, setPadding, setPadding, setWidth, toContentConstraint, trimBorder, trimMargin, trimPadding, trimToContentHeight, trimToContentWidth

Constructor Details

EmptyBlock

public EmptyBlock(double width,
                  double height)
Creates a new block with the specified width and height.
Parameters:
width - the width.
height - the height.

Method Details

clone

public Object clone()
            throws CloneNotSupportedException
Returns a clone of the block.
Overrides:
clone in interface AbstractBlock
Returns:
A clone.

draw

public void draw(Graphics2D g2,
                 Rectangle2D area)
Draws the block. Since the block is empty, this method does nothing.
Parameters:
g2 - the graphics device.
area - the area.

draw

public Object draw(Graphics2D g2,
                   Rectangle2D area,
                   Object params)
Draws the block within the specified area. Since the block is empty, this method does nothing.
Specified by:
draw in interface Block
Parameters:
g2 - the graphics device.
area - the area.
params - ignored (null permitted).
Returns:
Always null.

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