Package games.stendhal.tools.charas

Class CharasConverter

java.lang.Object

games.stendhal.tools.charas.CharasConverter

public class CharasConverter
extends Object

Utility to convert images saved from Charas to be suitable for Stendhal. Basically this means making the background color transparent and scaling the image using the scale2x algorithm.

Usage:

1. command line mode: "java tools.CharasConverter source.png destination.png"
2. graphical mode: start without any parameters to use the file selectors

Author:

johnnnny

Constructor Summary

Constructors

Constructor	Description
CharasConverter()

Method Summary

Modifier and Type	Method	Description
protected void	convertImage(String srcFilename, String dstFilename)	Convert a single image file to destination file.
protected BufferedImage	getImageWithTransparency(BufferedImage image, int px, int py)	Get a copy of the image with a single color transparent.
protected BufferedImage	getScaled2x(BufferedImage srcImage)	Scale an image to double size using the scale2x algorithm.
protected BufferedImage	loadImage(String filename)	Loads an image.
static void	main(String[] args)
protected void	savePNGImage(String filename, BufferedImage image)	Saves an image as PNG.

Methods inherited from class java.lang.Object

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

Constructor Details

CharasConverter

public CharasConverter()

Method Details

main

public static void main(String[] args)

convertImage

protected void convertImage(String srcFilename,
 String dstFilename)
                     throws IOException

Convert a single image file to destination file.

Parameters:

srcFilename - full path to source image file

dstFilename - full path to destination image file

Throws:

IOException - if loading or saving fails

getImageWithTransparency

protected BufferedImage getImageWithTransparency(BufferedImage image,
 int px,
 int py)

Get a copy of the image with a single color transparent. The color made to be transparent is specified by pixel.

Parameters:

image - source image

px - X index of the pixel for transparency color

py - Y index of the pixel for transparency color

Returns:

Copy of the image with one color changed to transparent

savePNGImage

protected void savePNGImage(String filename,
 BufferedImage image)
                     throws IOException

Saves an image as PNG.

Parameters:

filename - destination filename

image - imagedata

Throws:

IOException - if writing fails

loadImage

protected BufferedImage loadImage(String filename)
                           throws IOException

Loads an image.

Parameters:

filename - the name of the file from which the image file

Returns:

loaded image

Throws:

IOException - if reading the file fails

getScaled2x

protected BufferedImage getScaled2x(BufferedImage srcImage)

Scale an image to double size using the scale2x algorithm.

Parameters:

srcImage - source image data

Returns:

scaled image