prefuse.render
Class AxisRenderer

java.lang.Object
  prefuse.render.AbstractShapeRenderer
      prefuse.render.AxisRenderer

All Implemented Interfaces:

Renderer

public class AxisRenderer
extends AbstractShapeRenderer

Renderer for drawing an axis tick mark and label.

Author:

jeffrey heer, jgood

Field Summary

Fields inherited from class prefuse.render.AbstractShapeRenderer

m_manageBounds, m_transform, RENDER_TYPE_DRAW, RENDER_TYPE_DRAW_AND_FILL, RENDER_TYPE_FILL, RENDER_TYPE_NONE

Fields inherited from interface prefuse.render.Renderer

DEFAULT_GRAPHICS

Constructor Summary

AxisRenderer()
Create a new AxisRenderer.

AxisRenderer(int xalign, int yalign)
Create a new AxisRenderer.

Method Summary

protected java.awt.Shape	getRawShape(VisualItem item) Return a non-transformed shape for the visual representation of the item.
boolean	locatePoint(java.awt.geom.Point2D p, VisualItem item) Returns true if the Point is located inside the extents of the item.
void	render(java.awt.Graphics2D g, VisualItem item) Render item into a Graphics2D context.
void	setBounds(VisualItem item) Calculates and sets the bounding rectangle for an item.
void	setHorizontalAlignment(int xalign) Set the horizontal alignment of axis labels.
void	setVerticalAlignment(int yalign) Set the vertical alignment of axis labels.

Methods inherited from class prefuse.render.AbstractShapeRenderer

drawShape, getRenderType, getShape, getStroke, getTransform, setManageBounds, setRenderType

Methods inherited from class java.lang.Object

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

Constructor Detail

AxisRenderer

public AxisRenderer()

Create a new AxisRenderer. By default, axis labels are drawn along the left edge and underneath the tick marks.

AxisRenderer

public AxisRenderer(int xalign,
                    int yalign)

Create a new AxisRenderer.

Parameters:

xalign - the horizontal alignment for the axis label. One of Constants.LEFT, Constants.RIGHT, or Constants.CENTER.

yalign - the vertical alignment for the axis label. One of Constants.TOP, Constants.BOTTOM, or Constants.CENTER.

Method Detail

setHorizontalAlignment

public void setHorizontalAlignment(int xalign)

Set the horizontal alignment of axis labels.

Parameters:

xalign - the horizontal alignment for the axis label. One of Constants.LEFT, Constants.RIGHT, or Constants.CENTER.

setVerticalAlignment

public void setVerticalAlignment(int yalign)

Set the vertical alignment of axis labels.

Parameters:

yalign - the vertical alignment for the axis label. One of Constants.TOP, Constants.BOTTOM, or Constants.CENTER.

getRawShape

protected java.awt.Shape getRawShape(VisualItem item)

Description copied from class: AbstractShapeRenderer

Return a non-transformed shape for the visual representation of the item. Subclasses must implement this method.

Specified by:

getRawShape in class AbstractShapeRenderer

Parameters:

item - the VisualItem being drawn

Returns:

the "raw", untransformed shape.

See Also:

AbstractShapeRenderer.getRawShape(prefuse.visual.VisualItem)

render

public void render(java.awt.Graphics2D g,
                   VisualItem item)

Description copied from interface: Renderer

Render item into a Graphics2D context.

Specified by:

render in interface Renderer

Overrides:

render in class AbstractShapeRenderer

Parameters:

g - the Graphics2D context

item - the visual item to draw

See Also:

Renderer.render(java.awt.Graphics2D, prefuse.visual.VisualItem)

locatePoint

public boolean locatePoint(java.awt.geom.Point2D p,
                           VisualItem item)

Description copied from interface: Renderer

Returns true if the Point is located inside the extents of the item. This calculation matches against the exaxt item shape, and so is more sensitive than just checking within a bounding box.

Specified by:

locatePoint in interface Renderer

Overrides:

locatePoint in class AbstractShapeRenderer

Parameters:

p - the point to test for containment

item - the item to test containment against

Returns:

true if the point is contained within the the item, else false

See Also:

Renderer.locatePoint(java.awt.geom.Point2D, prefuse.visual.VisualItem)

setBounds

public void setBounds(VisualItem item)

Description copied from interface: Renderer

Calculates and sets the bounding rectangle for an item. This is called by a VisualItem when it validates its bounds.

Specified by:

setBounds in interface Renderer

Overrides:

setBounds in class AbstractShapeRenderer

Parameters:

item - the item to compute the bounding box for

See Also:

Renderer.setBounds(prefuse.visual.VisualItem)