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org.jfree.chart.block

Interface Block

All Superinterfaces:
Drawable
Known Implementing Classes:
BlockContainer, ColorBlock, CompositeTitle, DateTitle, EmptyBlock, ImageTitle, LabelBlock, LegendGraphic, LegendItemBlockContainer, LegendTitle, PaintScaleLegend, TextTitle, Title
public interface Block
extends 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

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

Method Details

arrange

public Size2D arrange(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 Size2D arrange(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).

draw

public Object draw(Graphics2D g2,
                   Rectangle2D area,
                   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).

getBounds

public Rectangle2D getBounds()
Returns the current bounds of the block.
Returns:
The bounds.

getID

public String getID()
Returns an ID for the block.
Returns:
An ID.

setBounds

public void setBounds(Rectangle2D bounds)
Sets the bounds of the block.
Parameters:
bounds - the bounds.

setID

public void setID(String id)
Sets the ID for the block.
Parameters:
id - the ID.

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