Package org.apache.xmlgraphics.java2d

Class GraphicsConfigurationWithTransparency

java.lang.Object

java.awt.GraphicsConfiguration

org.apache.xmlgraphics.java2d.AbstractGraphicsConfiguration

org.apache.xmlgraphics.java2d.GraphicsConfigurationWithTransparency

public class GraphicsConfigurationWithTransparency
extends AbstractGraphicsConfiguration

An implementation of GraphicsConfiguration that supports transparencies (alpha channels).

Constructor Summary

Constructors

Constructor	Description
GraphicsConfigurationWithTransparency()

Method Summary

Modifier and Type	Method	Description
BufferedImage	createCompatibleImage(int width, int height)	Construct a buffered image with an alpha channel.
BufferedImage	createCompatibleImage(int width, int height, int transparency)	Construct a buffered image with an alpha channel, unless transparency is OPAQUE (no alpha at all).
Rectangle	getBounds()	TODO: This should return the page bounds in Pts, I couldn't figure out how to get this for the current page (this still works for now, but it should be fixed...).
ColorModel	getColorModel()	Return a good default color model for this 'device'.
ColorModel	getColorModel(int transparency)	Return a good color model given transparency
AffineTransform	getDefaultTransform()	The default transform (1:1).
GraphicsDevice	getDevice()	Return our dummy instance of GraphicsDevice
AffineTransform	getNormalizingTransform()	The normalizing transform (1:1) (since we currently render images at 72dpi, which we might want to change in the future).

Methods inherited from class org.apache.xmlgraphics.java2d.AbstractGraphicsConfiguration

createCompatibleVolatileImage, createCompatibleVolatileImage

Methods inherited from class java.awt.GraphicsConfiguration

createCompatibleVolatileImage, createCompatibleVolatileImage, getBufferCapabilities, getImageCapabilities, isTranslucencyCapable

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphicsConfigurationWithTransparency

public GraphicsConfigurationWithTransparency()

Method Detail

createCompatibleImage

public BufferedImage createCompatibleImage(int width,
                                           int height,
                                           int transparency)

Construct a buffered image with an alpha channel, unless transparency is OPAQUE (no alpha at all).

Overrides:

createCompatibleImage in class GraphicsConfiguration

Parameters:

width - the width of the image

height - the height of the image

transparency - the alpha value of the image

Returns:

the new buffered image

createCompatibleImage

public BufferedImage createCompatibleImage(int width,
                                           int height)

Construct a buffered image with an alpha channel.

Overrides:

createCompatibleImage in class GraphicsConfiguration

Parameters:

width - the width of the image

height - the height of the image

Returns:

the new buffered image

getBounds

public Rectangle getBounds()

TODO: This should return the page bounds in Pts, I couldn't figure out how to get this for the current page (this still works for now, but it should be fixed...).

Specified by:

getBounds in class GraphicsConfiguration

Returns:

the bounds of the document page

getColorModel

public ColorModel getColorModel()

Return a good default color model for this 'device'.

Specified by:

getColorModel in class GraphicsConfiguration

Returns:

the colour model for the configuration

getColorModel

public ColorModel getColorModel(int transparency)

Return a good color model given transparency

Specified by:

getColorModel in class GraphicsConfiguration

Parameters:

transparency - the alpha value for the colour model

Returns:

the colour model for the configuration

getDefaultTransform

public AffineTransform getDefaultTransform()

The default transform (1:1).

Specified by:

getDefaultTransform in class GraphicsConfiguration

Returns:

the default transform for the configuration

getNormalizingTransform

public AffineTransform getNormalizingTransform()

The normalizing transform (1:1) (since we currently render images at 72dpi, which we might want to change in the future).

Specified by:

getNormalizingTransform in class GraphicsConfiguration

Returns:

the normalizing transform for the configuration

getDevice

public GraphicsDevice getDevice()

Return our dummy instance of GraphicsDevice

Specified by:

getDevice in class GraphicsConfiguration

Returns:

the graphics device