com.twelvemonkeys.servlet.image

Class RotateFilter

java.lang.Object

com.twelvemonkeys.servlet.GenericFilter

com.twelvemonkeys.servlet.image.ImageFilter

com.twelvemonkeys.servlet.image.RotateFilter

All Implemented Interfaces:

Serializable, javax.servlet.Filter, javax.servlet.FilterConfig

public class RotateFilter
extends ImageFilter

This Servlet is able to render a cropped part of an image.

Parameters:

cropX

integer, the new left edge of the image.

cropY

integer, the new top of the image.

cropWidth

integer, the new width of the image.

cropHeight

integer, the new height of the image.

Version:

$Id: RotateFilter.java#1 $

Author:

Harald Kuhr, last modified by $Author: haku $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	PARAM_ANGLE angle
protected static String	PARAM_ANGLE_UNITS angleUnits (RADIANS|DEGREES)
protected static String	PARAM_BGCOLOR bgcolor
protected static String	PARAM_CROP crop

Fields inherited from class com.twelvemonkeys.servlet.image.ImageFilter

triggerParams

Fields inherited from class com.twelvemonkeys.servlet.GenericFilter

oncePerRequest

Constructor Summary

Constructors

Constructor and Description
RotateFilter()

Method Summary

Modifier and Type	Method and Description
protected RenderedImage	doFilter(BufferedImage pImage, javax.servlet.ServletRequest pRequest, ImageServletResponse pResponse) Reads the image from the requested URL, rotates it, and returns it in the Servlet stream.

Methods inherited from class com.twelvemonkeys.servlet.image.ImageFilter

doFilterImpl, setTriggerParams, trigger

Methods inherited from class com.twelvemonkeys.servlet.GenericFilter

destroy, doFilter, getFilterConfig, getFilterName, getInitParameter, getInitParameterNames, getServletContext, init, init, log, log, setFilterConfig, setOncePerRequest

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_ANGLE

protected static final String PARAM_ANGLE

angle

See Also:

Constant Field Values

PARAM_ANGLE_UNITS

protected static final String PARAM_ANGLE_UNITS

angleUnits (RADIANS|DEGREES)

See Also:

Constant Field Values

PARAM_CROP

protected static final String PARAM_CROP

crop

See Also:

Constant Field Values

PARAM_BGCOLOR

protected static final String PARAM_BGCOLOR

bgcolor

See Also:

Constant Field Values

Constructor Detail

RotateFilter

public RotateFilter()

Method Detail

doFilter

protected RenderedImage doFilter(BufferedImage pImage,
                                 javax.servlet.ServletRequest pRequest,
                                 ImageServletResponse pResponse)

Reads the image from the requested URL, rotates it, and returns it in the Servlet stream. See above for details on parameters.

Specified by:

doFilter in class ImageFilter

Parameters:

pImage - the image to filter

pRequest - the servlet request

pResponse - the servlet response

Returns:

the filtered image