Package picasso.parser.language.expressions

Class Image

java.lang.Object

picasso.parser.language.ExpressionTreeNode

picasso.parser.language.expressions.Image

All Implemented Interfaces:

EvaluatableExpression

public class Image
extends ExpressionTreeNode

Represents the Image object in the Picasso language.

Field Summary

Fields inherited from class picasso.parser.language.ExpressionTreeNode

gelementsToValue

Constructor Summary

Constructors

Constructor	Description
Image(String filename)	Create a image ETN that takes as a parameter the filename

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
RGBColor	evaluate(double x, double y)	Returns the RGBColor of an image at a given x,y coordinate
Color	getColor(int x, int y)	Returns the color of the pixel at the given (x,y) coordinate if the coordinate is within the bounds of the image; otherwise returns the default color
Dimension	getSize()
boolean	isInBounds(int x, int y)	Determine if the given (x,y) coordinate is within the bounds of this image.

Methods inherited from class java.lang.Object

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

Constructor Detail

Image

public Image(String filename)

Create a image ETN that takes as a parameter the filename

Parameters:

filename - the name of the file

Method Detail

isInBounds

public boolean isInBounds(int x,
                          int y)

Determine if the given (x,y) coordinate is within the bounds of this image.

Parameters:

x - the x coordinate

y - the y coordinate

Returns:

true if the given (x,y) coordinate is within the bounds of this image.

getColor

public Color getColor(int x,
                      int y)

Returns the color of the pixel at the given (x,y) coordinate if the coordinate is within the bounds of the image; otherwise returns the default color

Parameters:

x - the x coordinate

y - the y coordinate

Returns:

the color of the pixel at the given (x,y) coordinate if the coordinate is within the bounds of the image; otherwise returns the default color

evaluate

public RGBColor evaluate(double x,
                         double y)

Returns the RGBColor of an image at a given x,y coordinate

Specified by:

evaluate in interface EvaluatableExpression

Specified by:

evaluate in class ExpressionTreeNode

Parameters:

x - the x coordinate of the image

y - the y coordinate of the image

Returns:

the color of the image at given x,y coordinates

equals

public boolean equals(Object o)

Overrides:

equals in class Object

getSize

public Dimension getSize()