RotateFilter (TwelveMonkeys :: Servlet 3.5 API)

java.lang.Object
- com.twelvemonkeys.servlet.GenericFilter
- - com.twelvemonkeys.servlet.image.ImageFilter
  - - com.twelvemonkeys.servlet.image.RotateFilter

All Implemented Interfaces:

java.io.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.

Examples:
JPEG: <IMG src="/scale/test.jpg?image=http://www.iconmedialab.com/images/random/home_image_12.jpg&width=500&uniform=true">
PNG: <IMG src="/scale/test.png?cache=false&image=http://www.iconmedialab.com/images/random/home_image_12.jpg&width=50&units=PERCENT">

Version:

$Id: RotateFilter.java#1 $

Author:

Harald Kuhr, last modified by $Author: haku $

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected static java.lang.String`	`PARAM_ANGLE`	`angle`
`protected static java.lang.String`	`PARAM_ANGLE_UNITS`	`angleUnits (RADIANS\|DEGREES)`
`protected static java.lang.String`	`PARAM_BGCOLOR`	`bgcolor`
`protected static java.lang.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 Description

RotateFilter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.awt.image.RenderedImage`	`doFilter(java.awt.image.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 java.lang.String PARAM_ANGLE
```
    angle
    
    See Also:
    
    Constant Field Values
  - PARAM_ANGLE_UNITS
```
protected static final java.lang.String PARAM_ANGLE_UNITS
```
    angleUnits (RADIANS|DEGREES)
    
    See Also:
    
    Constant Field Values
  - PARAM_CROP
```
protected static final java.lang.String PARAM_CROP
```
    crop
    
    See Also:
    
    Constant Field Values
  - PARAM_BGCOLOR
```
protected static final java.lang.String PARAM_BGCOLOR
```
    bgcolor
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - RotateFilter
```
public RotateFilter()
```
- Method Detail
  - doFilter
```
protected java.awt.image.RenderedImage doFilter(java.awt.image.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