Package ca.cgjennings.graphics.shapes

Class SubregionVectorImage

java.lang.Object

ca.cgjennings.graphics.shapes.AbstractVectorImage

ca.cgjennings.graphics.shapes.SubregionVectorImage

All Implemented Interfaces:

VectorImage

public class SubregionVectorImage
extends AbstractVectorImage

A vector image that consists of a rectangular region within another vector image.

Since:

3.0

Author:

Chris Jennings

Field Summary

Fields inherited from class ca.cgjennings.graphics.shapes.AbstractVectorImage

ih, iw, tx, ty

Constructor Summary

Constructors

Constructor	Description
SubregionVectorImage(AbstractVectorImage sourceImage, double x, double y, double width, double height)	Creates a new vector image that consists of a rectangular subregion of a source vector image.
SubregionVectorImage(AbstractVectorImage sourceImage, java.awt.geom.Rectangle2D subregion)	Creates a new vector image that consists of a rectangular subregion of a source vector image.

Method Summary

Modifier and Type	Method	Description
AbstractVectorImage	getSourceImage()	Returns the source image that this image is a subregion of.
protected void	render(java.awt.Graphics2D g)	Renders the vector image into the specified graphics context.

Methods inherited from class ca.cgjennings.graphics.shapes.AbstractVectorImage

createRasterImage, createRasterImage, getHeight, getWidth, paint, paint, paint

Methods inherited from class java.lang.Object

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

Constructor Detail

SubregionVectorImage

public SubregionVectorImage(AbstractVectorImage sourceImage,
                            double x,
                            double y,
                            double width,
                            double height)

Creates a new vector image that consists of a rectangular subregion of a source vector image.

Parameters:

sourceImage - the image that this image is a subimage of

x - the x-offset of the upper-left corner of the subregion

y - the y-offset of the upper-left corner of the subregion

width - the width of the subregion

height - the height of the subregion

SubregionVectorImage

public SubregionVectorImage(AbstractVectorImage sourceImage,
                            java.awt.geom.Rectangle2D subregion)

Creates a new vector image that consists of a rectangular subregion of a source vector image.

Parameters:

sourceImage - the image that this image is a subimage of

subregion - a rectangle that defines the region of the source image covered by this image

Method Detail

getSourceImage

public AbstractVectorImage getSourceImage()

Returns the source image that this image is a subregion of.

Returns:

the source image used to create this subimage

render

protected void render(java.awt.Graphics2D g)

Description copied from class: AbstractVectorImage

Renders the vector image into the specified graphics context. The upper left corner of the image should be at (-tx, -ty) and cover an area with width AbstractVectorImage.iw and height AbstractVectorImage.ih. Any changes to the state of the graphics context (stroke, paint, clip, etc.) must be restored before the method returns.

Specified by:

render in class AbstractVectorImage

Parameters:

g - the graphics context to render the image into