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

Field Summary

Fields inherited from class prefuse.render.AbstractShapeRenderer

m_manageBounds, m_transform

Fields inherited from interface prefuse.render.Renderer

DEFAULT_GRAPHICS

Constructor Summary

AxisRenderer()
Create a new AxisRenderer.

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

Method Summary

void	calculateBounds(VisualItem<?> item, java.awt.geom.Rectangle2D bounds) Calculates the bounding rectangle for an item.
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	setHorizontalAlignment(Alignment xalign) Set the horizontal alignment of axis labels.
void	setVerticalAlignment(Alignment yalign) Set the vertical alignment of axis labels.

Methods inherited from class prefuse.render.AbstractShapeRenderer

drawShape, getFillColor, getRenderType, getShape, getStroke, getStrokeColor, getTransform, managesBounds, 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(Alignment xalign,
                    Alignment yalign)

Create a new AxisRenderer.

Parameters:

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

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

Method Detail

setHorizontalAlignment

public void setHorizontalAlignment(Alignment xalign)

Set the horizontal alignment of axis labels.

Parameters:

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

setVerticalAlignment

public void setVerticalAlignment(Alignment yalign)

Set the vertical alignment of axis labels.

Parameters:

yalign - the vertical alignment for the axis label. One of Alignment.TOP, Alignment.BOTTOM, or Alignment.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 exact 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)

calculateBounds

public void calculateBounds(VisualItem<?> item,
                            java.awt.geom.Rectangle2D bounds)

Description copied from interface: Renderer

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

Specified by:

calculateBounds in interface Renderer

Overrides:

calculateBounds in class AbstractShapeRenderer

Parameters:

item - the item to compute the bounding box for

bounds - the rectangle to populate with the bounding box

See Also:

Renderer.calculateBounds(VisualItem,Rectangle2D)