org.apache.fop.render

Class AbstractGraphics2DAdapter

java.lang.Object

org.apache.fop.render.AbstractGraphics2DAdapter

All Implemented Interfaces:

Graphics2DAdapter

Direct Known Subclasses:

AFPGraphics2DAdapter, Java2DGraphics2DAdapter, PSGraphics2DAdapter

public abstract class AbstractGraphics2DAdapter
extends Object
implements Graphics2DAdapter

Abstract base class for Graphics2DAdapter implementations.

Constructor Summary

Constructors

Constructor and Description
AbstractGraphics2DAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
protected int	mpt2px(int unit, int resolution) Converts millipoints to pixels
void	paintImage(Graphics2DImagePainter painter, RendererContext context, int x, int y, int width, int height) Deprecated.
protected BufferedImage	paintToBufferedImage(org.apache.xmlgraphics.java2d.Graphics2DImagePainter painter, RendererContext.RendererContextWrapper context, int resolution, boolean gray, boolean withAlpha) Paints the image to a BufferedImage and returns that.
protected void	setRenderingHintsForBufferedImage(Graphics2D g2d) Sets rendering hints on the Graphics2D created for painting to a BufferedImage.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.fop.render.Graphics2DAdapter

paintImage

Constructor Detail

AbstractGraphics2DAdapter

public AbstractGraphics2DAdapter()

Method Detail

paintToBufferedImage

protected BufferedImage paintToBufferedImage(org.apache.xmlgraphics.java2d.Graphics2DImagePainter painter,
                                 RendererContext.RendererContextWrapper context,
                                 int resolution,
                                 boolean gray,
                                 boolean withAlpha)

Paints the image to a BufferedImage and returns that.

Parameters:

painter - the painter which will paint the actual image

context - the renderer context for the current renderer

resolution - the requested bitmap resolution

gray - true if the generated image should be in grayscales

withAlpha - true if an alpha channel should be created

Returns:

the generated BufferedImage

mpt2px

protected int mpt2px(int unit,
         int resolution)

Converts millipoints to pixels

Parameters:

unit - the unit to convert in mpts

resolution - the target resolution

Returns:

the converted unit in pixels

setRenderingHintsForBufferedImage

protected void setRenderingHintsForBufferedImage(Graphics2D g2d)

Sets rendering hints on the Graphics2D created for painting to a BufferedImage. Subclasses can modify the settings to customize the behaviour.

Parameters:

g2d - the Graphics2D instance

paintImage

public void paintImage(Graphics2DImagePainter painter,
              RendererContext context,
              int x,
              int y,
              int width,
              int height)
                throws IOException

Deprecated.

Paints an arbitrary images on a given Graphics2D instance. The renderer providing this functionality must set up a Graphics2D instance so that the image with the given extents (in mpt) can be painted by the painter passed to this method. The Graphics2DImagePainter is then passed this Graphics2D instance so the image can be painted.

Specified by:

paintImage in interface Graphics2DAdapter

Parameters:

painter - the painter which will paint the actual image

context - the renderer context for the current renderer

x - X position of the image

y - Y position of the image

width - width of the image

height - height of the image

Throws:

IOException - In case of an I/O error while writing the output format