org.jfree.chart.block
Interface Block

All Superinterfaces:

org.jfree.ui.Drawable

All Known Implementing Classes:

BlockContainer, ColorBlock, EmptyBlock, LabelBlock, LegendGraphic, Title

public interface Block

extends org.jfree.ui.Drawable

A block is an arbitrary item that can be drawn (in Java2D space) within a rectangular area, has a preferred size, and can be arranged by an Arrangement manager.

Method Summary

org.jfree.ui.Size2D	arrange(java.awt.Graphics2D g2) Arranges the contents of the block, with no constraints, and returns the block size.
org.jfree.ui.Size2D	arrange(java.awt.Graphics2D g2, RectangleConstraint constraint) Arranges the contents of the block, within the given constraints, and returns the block size.
java.lang.Object	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, java.lang.Object params) Draws the block within the specified area.
java.awt.geom.Rectangle2D	getBounds() Returns the current bounds of the block.
java.lang.String	getID() Returns an ID for the block.
void	setBounds(java.awt.geom.Rectangle2D bounds) Sets the bounds of the block.
void	setID(java.lang.String id) Sets the ID for the block.

Methods inherited from interface org.jfree.ui.Drawable

draw

Method Detail

getID

public java.lang.String getID()

Returns an ID for the block.

Returns:

An ID.

setID

public void setID(java.lang.String id)

Sets the ID for the block.

Parameters:

id - the ID.

arrange

public org.jfree.ui.Size2D arrange(java.awt.Graphics2D g2)

Arranges the contents of the block, with no constraints, and returns the block size.

Parameters:

g2 - the graphics device.

Returns:

The size of the block.

arrange

public org.jfree.ui.Size2D arrange(java.awt.Graphics2D g2,
                                   RectangleConstraint constraint)

Arranges the contents of the block, within the given constraints, and returns the block size.

Parameters:

g2 - the graphics device.

constraint - the constraint (null not permitted).

Returns:

The block size (in Java2D units, never null).

getBounds

public java.awt.geom.Rectangle2D getBounds()

Returns the current bounds of the block.

Returns:

The bounds.

setBounds

public void setBounds(java.awt.geom.Rectangle2D bounds)

Sets the bounds of the block.

Parameters:

bounds - the bounds.

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. Refer to the documentation for the implementing class for information about the params and return value supported.

Parameters:

g2 - the graphics device.

area - the area.

params - optional parameters (null permitted).

Returns:

An optional return value (possibly null).