org.xhtmlrenderer.simple

Class ImageRenderer

java.lang.Object

org.xhtmlrenderer.simple.ImageRenderer

public class ImageRenderer
extends Object

ImageRenderer supports rendering of XHTML documents to image formats, writing out the generated image to an output stream or a file in a given image format. There are two static utility methods, one for rendering a URL, renderToImage(String, String, int) and one for rendering a File, renderToImage(File, String, int)

You can use this utility from the command line by passing in the URL or file location as first parameter, and output file path as second parameter:

 java -cp %classpath% org.xhtmlrenderer.simple.ImageRenderer <url> <img>
 

If the second parameters is not provided, a PNG-format image will be created in the same directory as the source (if source is a file) or as a temp file in the standard temp directory; the output file name will be printed out in either case.

Image width must always be supplied; height is determined automatically.

Author:

Pete Brant, Patrick Wright

See Also:

org.xhtmlrenderer.simple.PDFRenderer

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_WIDTH

Constructor Summary

Constructors

Constructor and Description
ImageRenderer()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Renders a file or URL to an image file.
static BufferedImage	renderImageToOutput(String url, FSImageWriter fsw, String path, int width) Renders a document at a given URL and writes it out using the FSImageWriter provided (e.g.
static BufferedImage	renderToImage(File inFile, String path, int width) Renders the XML file as an image file at the target location.
static BufferedImage	renderToImage(File inFile, String path, int width, int height) Renders the XML file as an image file at the target location.
static BufferedImage	renderToImage(String url, String path, int width) Renders the XML file at the given URL as an image file at the target location.
static BufferedImage	renderToImage(String url, String path, int width, int height) Renders the XML file at the given URL as an image file at the target location.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_WIDTH

public static final int DEFAULT_WIDTH

See Also:

Constant Field Values

Constructor Detail

ImageRenderer

public ImageRenderer()

Method Detail

renderToImage

public static BufferedImage renderToImage(String url,
                                          String path,
                                          int width)
                                   throws IOException

Renders the XML file at the given URL as an image file at the target location. Width must be provided, height is determined automatically based on content and CSS.

Parameters:

url - url for the XML file to render

path - path to the PDF file to create

width - Width in pixels to which the document should be constrained.

Throws:

IOException - if the input URL, or output path location is invalid

renderToImage

public static BufferedImage renderToImage(String url,
                                          String path,
                                          int width,
                                          int height)
                                   throws IOException

Renders the XML file at the given URL as an image file at the target location.

Parameters:

url - url for the XML file to render

path - path to the PDF file to create

width - Width in pixels to which the document should be constrained.

height - Height in pixels to which the document should be constrained.

Throws:

IOException - if the input URL, or output path location is invalid

renderToImage

public static BufferedImage renderToImage(File inFile,
                                          String path,
                                          int width)
                                   throws IOException

Renders the XML file as an image file at the target location. Width must be provided, height is determined automatically based on content and CSS.

Parameters:

inFile - XML file to render

path - path to the image file to create

width - Width in pixels to which the document should be constrained.

Throws:

IOException - if the input URL, or output path location is invalid

renderToImage

public static BufferedImage renderToImage(File inFile,
                                          String path,
                                          int width,
                                          int height)
                                   throws IOException

Renders the XML file as an image file at the target location. Width must be provided, height is determined automatically based on content and CSS.

Parameters:

inFile - XML file to render

path - path to the image file to create

width - Width in pixels to which the document should be constrained.

height - Height in pixels to which the document should be constrained.

Throws:

IOException - if the input URL, or output path location is invalid

renderImageToOutput

public static BufferedImage renderImageToOutput(String url,
                                                FSImageWriter fsw,
                                                String path,
                                                int width)
                                         throws IOException

Renders a document at a given URL and writes it out using the FSImageWriter provided (e.g. to a file or outputstream).

Parameters:

url -

fsw -

path -

width -

Throws:

IOException

main

public static void main(String[] args)
                 throws IOException

Renders a file or URL to an image file. Command line use: first argument is URL or file path, second argument is path to image file to generate.

Parameters:

args - see desc

Throws:

IOException - if source could not be read, or if image path is invalid