org.apache.tools.ant.types.optional.image

Class Scale

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.types.DataType

org.apache.tools.ant.types.optional.image.ImageOperation

org.apache.tools.ant.types.optional.image.TransformOperation

org.apache.tools.ant.types.optional.image.Scale

All Implemented Interfaces:

java.lang.Cloneable, DrawOperation

public class Scale
extends TransformOperation
implements DrawOperation

See Also:

Image

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Scale.ProportionsAttribute Enumerated class for proportions attribute.

Field Summary

Fields inherited from class org.apache.tools.ant.types.optional.image.ImageOperation

instructions

Fields inherited from class org.apache.tools.ant.types.DataType

checked, ref

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor and Description
Scale()

Method Summary

Modifier and Type	Method and Description
javax.media.jai.PlanarImage	executeDrawOperation() Abstract method which is intended to create an image buffer and return it so it can be drawn into another object.
javax.media.jai.PlanarImage	executeTransformOperation(javax.media.jai.PlanarImage image) Performs the transformations.
float	getHeight() Get the height.
float	getWidth() Get the width.
javax.media.jai.PlanarImage	performScale(javax.media.jai.PlanarImage image) Scale an image.
void	setHeight(java.lang.String height) Sets the height of the image, either as an integer or a %.
void	setProportions(Scale.ProportionsAttribute pa) Sets the behaviour regarding the image proportions.
void	setWidth(java.lang.String width) Sets the width of the image, either as an integer or a %.

Methods inherited from class org.apache.tools.ant.types.optional.image.TransformOperation

addRectangle

Methods inherited from class org.apache.tools.ant.types.optional.image.ImageOperation

addDraw, addRotate, addScale, addText

Methods inherited from class org.apache.tools.ant.types.DataType

checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, setRefid, tooManyAttributes, toString

Methods inherited from class org.apache.tools.ant.ProjectComponent

getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Constructor Detail

Scale

public Scale()

Method Detail

setProportions

public void setProportions(Scale.ProportionsAttribute pa)

Sets the behaviour regarding the image proportions.

Parameters:

pa - the enumerated value.

setWidth

public void setWidth(java.lang.String width)

Sets the width of the image, either as an integer or a %. Defaults to 100%.

Parameters:

width - the value to use.

setHeight

public void setHeight(java.lang.String height)

Sets the height of the image, either as an integer or a %. Defaults to 100%.

Parameters:

height - the value to use.

getWidth

public float getWidth()

Get the width.

Returns:

the value converted from the width string.

getHeight

public float getHeight()

Get the height.

Returns:

the value converted from the height string.

performScale

public javax.media.jai.PlanarImage performScale(javax.media.jai.PlanarImage image)

Scale an image.

Parameters:

image - the image to scale.

Returns:

the scaled image.

executeTransformOperation

public javax.media.jai.PlanarImage executeTransformOperation(javax.media.jai.PlanarImage image)

Performs the transformations..

Specified by:

executeTransformOperation in class TransformOperation

Parameters:

image - The image to perform the transformation on.

Returns:

the transformed image.

executeDrawOperation

public javax.media.jai.PlanarImage executeDrawOperation()

Abstract method which is intended to create an image buffer and return it so it can be drawn into another object. Use an Alpha channel for a "transparent" background..

Specified by:

executeDrawOperation in interface DrawOperation

Returns:

a planar image