org.jfree.chart.block
Class EmptyBlock

java.lang.Object
  extended byorg.jfree.chart.block.AbstractBlock
      extended byorg.jfree.chart.block.EmptyBlock
All Implemented Interfaces:
Block, java.lang.Cloneable, org.jfree.ui.Drawable, org.jfree.util.PublicCloneable, java.io.Serializable

public class EmptyBlock
extends AbstractBlock
implements Block, java.lang.Cloneable, org.jfree.util.PublicCloneable, java.io.Serializable

An empty block with a fixed size.

See Also:
Serialized Form

Constructor Summary
EmptyBlock(double width, double height)
          Creates a new block with the specified width and height.
 
Method Summary
 java.lang.Object clone()
          Returns a clone of the block.
 void draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area)
          Draws the block.
 java.lang.Object draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, java.lang.Object params)
          Draws the block within the specified area.
 
Methods inherited from class org.jfree.chart.block.AbstractBlock
arrange, arrange, calculateTotalHeight, calculateTotalWidth, 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
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.jfree.chart.block.Block
arrange, arrange, getBounds, getID, setBounds, setID
 

Constructor Detail

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 Detail

draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area)
Draws the block. Since the block is empty, this method does nothing.

Specified by:
draw in interface org.jfree.ui.Drawable
Parameters:
g2 - the graphics device.
area - the area.

draw

public java.lang.Object draw(java.awt.Graphics2D g2,
                             java.awt.geom.Rectangle2D area,
                             java.lang.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.

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException
Returns a clone of the block.

Specified by:
clone in interface org.jfree.util.PublicCloneable
Overrides:
clone in class AbstractBlock
Returns:
A clone.
Throws:
java.lang.CloneNotSupportedException - if there is a problem cloning.