presentationdirection.java

java jdk 1.4的源码

/*
 * @(#)PresentationDirection.java	1.4 03/01/23
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package javax.print.attribute.standard;

import javax.print.attribute.EnumSyntax;
import javax.print.attribute.PrintJobAttribute;
import javax.print.attribute.PrintRequestAttribute;

/**
 * Class PresentationDirection is a printing attribute class, an enumeration,
 * that is used in conjunction with the {@link  NumberUp NumberUp} attribute to
 * indicate the layout of multiple print-stream pages to impose upon a
 * single side of an instance of a selected medium.
 * This is useful to mirror the text layout conventions of different scripts.
 * For example, English is "toright-tobottom", Hebrew is "toleft-tobottom"
 *  and Japanese is usually "tobottom-toleft".
 * <P>
 * <B>IPP Compatibility:</B>  This attribute is not an IPP 1.1
 * attribute; it is an attribute in the Production Printing Extension
 * (<a href="ftp://ftp.pwg.org/pub/pwg/standards/pwg5100.3.pdf">PDF</a>)
 * of IPP 1.1.  The category name returned by 
 * <CODE>getName()</CODE> is the IPP attribute name.  The enumeration's 
 * integer value is the IPP enum value.  The <code>toString()</code> method 
 * returns the IPP string representation of the attribute value.
 * <P>
 *
 * @author  Phil Race.
 */
public final class PresentationDirection extends EnumSyntax
       implements PrintJobAttribute, PrintRequestAttribute  {

    /**
     * Pages are laid out in columns starting at the top left,
     * proceeeding towards the bottom & right.
     */
    public static final PresentationDirection TOBOTTOM_TORIGHT =
        new PresentationDirection(0);

    /**
     * Pages are laid out in columns starting at the top right,
     * proceeeding towards the bottom & left.
     */
    public static final PresentationDirection TOBOTTOM_TOLEFT =
        new PresentationDirection(1);

    /**
     * Pages are laid out in columns starting at the bottom left,
     * proceeeding towards the top & right.
     */
    public static final PresentationDirection TOTOP_TORIGHT =
        new PresentationDirection(2);

    /**
     * Pages are laid out in columns starting at the bottom right,
     * proceeeding towards the top & left.
     */
    public static final PresentationDirection TOTOP_TOLEFT =
        new PresentationDirection(3);

    /**
     * Pages are laid out in rows starting at the top left,
     * proceeeding towards the right & bottom.
     */
    public static final PresentationDirection TORIGHT_TOBOTTOM =
        new PresentationDirection(4);

    /**
     * Pages are laid out in rows starting at the bottom left,
     * proceeeding towards the right & top.
     */
    public static final PresentationDirection TORIGHT_TOTOP =
        new PresentationDirection(5);

    /**
     * Pages are laid out in rows starting at the top right,
     * proceeeding towards the left & bottom.
     */
    public static final PresentationDirection TOLEFT_TOBOTTOM =
        new PresentationDirection(6);

    /**
     * Pages are laid out in rows starting at the bottom right,
     * proceeeding towards the left & top.
     */
    public static final PresentationDirection TOLEFT_TOTOP =
        new PresentationDirection(7);

    /**
     * Construct a new presentation direction enumeration value with the given
     * integer value. 
     *
     * @param  value  Integer value.
     */
    private PresentationDirection(int value) {
	super (value);
    }

    private static final String[] myStringTable = {
	"tobottom-toright",
	"tobottom-toleft",
	"totop-toright",
	"totop-toleft",
	"toright-tobottom",
	"toright-totop",
	"toleft-tobottom",
	"toleft-totop",
    };

    private static final PresentationDirection[] myEnumValueTable = {
	TOBOTTOM_TORIGHT,
	TOBOTTOM_TOLEFT,
	TOTOP_TORIGHT,
	TOTOP_TOLEFT,
	TORIGHT_TOBOTTOM,
	TORIGHT_TOTOP,
	TOLEFT_TOBOTTOM,
	TOLEFT_TOTOP,
    };

    /**
     * Returns the string table for class PresentationDirection.
     */
    protected String[] getStringTable() {
	return myStringTable;
    }

    /**
     * Returns the enumeration value table for class PresentationDirection.
     */
    protected EnumSyntax[] getEnumValueTable() {
	return myEnumValueTable;
    }

    /**
     * Get the printing attribute class which is to be used as the "category" 
     * for this printing attribute value.
     * <P>
     * For class PresentationDirection
     * the category is class PresentationDirection itself. 
     *
     * @return  Printing attribute class (category), an instance of class
     *          {@link java.lang.Class java.lang.Class}.
     */
    public final Class getCategory() {
	return PresentationDirection.class;
    }

    /**
     * Get the name of the category of which this attribute value is an 
     * instance. 
     * <P>
     * For class PresentationDirection
     * the category name is <CODE>"presentation-direction"</CODE>. 
     *
     * @return  Attribute category name.
     */
    public final String getName() {
	return "presentation-direction";
    }

}