edu.rit.swing

Class DisplayableIO

java.lang.Object

edu.rit.swing.DisplayableIO

public class DisplayableIO
extends java.lang.Object

Class DisplayableIO provides static methods for writing displayable objects as image files. You can write PNG files and PostScript files.

Method Summary

Modifier and Type	Method and Description
static void	writeBilevelPNGFile(Displayable theDisplayable, java.io.File theFile) Write the given displayable object to a PNG file in the form of a bilevel (black and white) image.
static void	writeBilevelPNGFile(Displayable theDisplayable, java.io.File theFile, double theScale) Write the given displayable object to a PNG file in the form of a bilevel (black and white) image with the given scale factor.
static void	writeColorPNGFile(Displayable theDisplayable, java.io.File theFile) Write the given displayable object to a PNG file in the form of a 24-bit color image.
static void	writeColorPNGFile(Displayable theDisplayable, java.io.File theFile, double theScale) Write the given displayable object to a PNG file in the form of a 24-bit color image with the given scale factor.
static void	writeGrayscalePNGFile(Displayable theDisplayable, java.io.File theFile) Write the given displayable object to a PNG file in the form of a grayscale image.
static void	writeGrayscalePNGFile(Displayable theDisplayable, java.io.File theFile, double theScale) Write the given displayable object to a PNG file in the form of a grayscale image with the given scale factor.
static void	writePostScriptFile(Displayable theDisplayable, java.io.File theFile) Write the given displayable object to a PostScript file.

Methods inherited from class java.lang.Object

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

Method Detail

writeBilevelPNGFile

public static void writeBilevelPNGFile(Displayable theDisplayable,
                                       java.io.File theFile)
                                throws java.io.IOException

Write the given displayable object to a PNG file in the form of a bilevel (black and white) image. The default scale factor (one display unit = one pixel) is used.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writeBilevelPNGFile

public static void writeBilevelPNGFile(Displayable theDisplayable,
                                       java.io.File theFile,
                                       double theScale)
                                throws java.io.IOException

Write the given displayable object to a PNG file in the form of a bilevel (black and white) image with the given scale factor. One display unit = theScale pixels.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

theScale - Scale factor for converting display units to pixels.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writeGrayscalePNGFile

public static void writeGrayscalePNGFile(Displayable theDisplayable,
                                         java.io.File theFile)
                                  throws java.io.IOException

Write the given displayable object to a PNG file in the form of a grayscale image. The default scale factor (one display unit = one pixel) is used.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writeGrayscalePNGFile

public static void writeGrayscalePNGFile(Displayable theDisplayable,
                                         java.io.File theFile,
                                         double theScale)
                                  throws java.io.IOException

Write the given displayable object to a PNG file in the form of a grayscale image with the given scale factor. One display unit = theScale pixels.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

theScale - Scale factor for converting display units to pixels.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writeColorPNGFile

public static void writeColorPNGFile(Displayable theDisplayable,
                                     java.io.File theFile)
                              throws java.io.IOException

Write the given displayable object to a PNG file in the form of a 24-bit color image. The default scale factor (one display unit = one pixel) is used.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writeColorPNGFile

public static void writeColorPNGFile(Displayable theDisplayable,
                                     java.io.File theFile,
                                     double theScale)
                              throws java.io.IOException

Write the given displayable object to a PNG file in the form of a 24-bit color image with the given scale factor. One display unit = theScale pixels.

Parameters:

theDisplayable - Displayable object to write.

theFile - Image file.

theScale - Scale factor for converting display units to pixels.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

writePostScriptFile

public static void writePostScriptFile(Displayable theDisplayable,
                                       java.io.File theFile)
                                throws java.io.IOException

Write the given displayable object to a PostScript file.

Parameters:

theDisplayable - Displayable object to write.

theFile - PostScript file.

Throws:

java.io.IOException - Thrown if an I/O error occurred.