numberup.java

java jdk 1.4的源码

/*
 * @(#)NumberUp.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.IntegerSyntax;
import javax.print.attribute.DocAttribute;
import javax.print.attribute.PrintRequestAttribute;
import javax.print.attribute.PrintJobAttribute;

/**
 * Class NumberUp is an integer valued printing attribute class that specifies 
 * the number of print-stream pages to impose upon a single side of an 
 * instance of a selected medium. That is, if the NumberUp value is <I>n,</I>
 * the printer must place <I>n</I> print-stream pages on a single side of
 * an instance of the 
 * selected medium. To accomplish this, the printer may add some sort of 
 * translation, scaling, or rotation. This attribute primarily controls the 
 * translation, scaling and rotation of print-stream pages. 
 * <P>
 * The effect of a NumberUp attribute on a multidoc print job (a job with 
 * multiple documents) depends on whether all the docs have the same number up 
 * values specified or whether different docs have different number up values 
 * specified, and on the (perhaps defaulted) value of the {@link 
 * MultipleDocumentHandling MultipleDocumentHandling} attribute. 
 * <UL>
 * <LI>
 * If all the docs have the same number up value <I>n</I> specified, then any 
 * value of {@link MultipleDocumentHandling MultipleDocumentHandling} makes 
 * sense, and the printer's processing depends on the {@link 
 * MultipleDocumentHandling MultipleDocumentHandling} value: 
 * <UL>
 * <LI>
 * SINGLE_DOCUMENT -- All the input docs will be combined together into one 
 * output document. Each media impression will consist of <I>n</I>m
 *  print-stream pages from the output document. 
 * <P>
 * <LI>
 * SINGLE_DOCUMENT_NEW_SHEET -- All the input docs will be combined together 
 * into one output document. Each media impression will consist of <I>n</I> 
 * print-stream pages from the output document. However, the first impression of 
 * each input doc will always start on a new media sheet; this means the last 
 * impression of an input doc may have fewer than <I>n</I> print-stream pages
 *  on it. 
 * <P>
 * <LI>
 * SEPARATE_DOCUMENTS_UNCOLLATED_COPIES -- The input docs will remain separate. 
 * Each media impression will consist of <I>n</I> print-stream pages from the 
 * input doc. Since the input docs are separate, the first impression of each 
 * input doc will always start on a new media sheet; this means the last 
 * impression of an input doc may have fewer than <I>n</I> print-stream pages on 
 * it. 
 * <P>
 * <LI>
 * SEPARATE_DOCUMENTS_COLLATED_COPIES -- The input docs will remain separate. 
 * Each media impression will consist of <I>n</I> print-stream pages from the 
 * input doc. Since the input docs are separate, the first impression of each 
 * input doc will always start on a new media sheet; this means the last 
 * impression of an input doc may have fewer than <I>n</I> print-stream pages
 * on it. 
 * </UL> 
 * <UL>
 * <LI>
 * SINGLE_DOCUMENT -- All the input docs will be combined together into one 
 * output document. Each media impression will consist of <I>n<SUB>i</SUB></I> 
 * print-stream pages from the output document, where <I>i</I> is the number of 
 * the input doc corresponding to that point in the output document. When the 
 * next input doc has a different number up value from the previous input doc, 
 * the first print-stream page of the next input doc goes at the start of the 
 * next media impression, possibly leaving fewer than the full number of 
 * print-stream pages on the previous media impression. 
 * <P>
 * <LI>
 * SINGLE_DOCUMENT_NEW_SHEET -- All the input docs will be combined together 
 * into one output document. Each media impression will consist of <I>n</I> 
 * print-stream pages from the output document. However, the first impression of 
 * each input doc will always start on a new media sheet; this means the last 
 * impression of an input doc may have fewer than <I>n</I> print-stream pages
 * on it. 
 * <P>
 * <LI>
 * SEPARATE_DOCUMENTS_UNCOLLATED_COPIES -- The input docs will remain separate. 
 * For input doc <I>i,</I> each media impression will consist of 
 * <I>n<SUB>i</SUB></I> print-stream pages from the input doc. Since the input 
 * docs are separate, the first impression of each input doc will always start 
 * on a new media sheet; this means the last impression of an input doc may have 
 * fewer than <I>n<SUB>i</SUB></I> print-stream pages on it. 
 * <P>
 * <LI>
 * SEPARATE_DOCUMENTS_COLLATED_COPIES -- The input docs will remain separate. 
 * For input doc <I>i,</I> each media impression will consist of 
 * <I>n<SUB>i</SUB></I> print-stream pages from the input doc. Since the input 
 * docs are separate, the first impression of each input doc will always start 
 * on a new media sheet; this means the last impression of an input doc may  
 * have fewer than <I>n<SUB>i</SUB></I> print-stream pages on it. 
 * </UL> 
 * </UL>
 * <B>IPP Compatibility:</B> The integer value gives the IPP integer value.  
 * The category name returned by <CODE>getName()</CODE> gives the IPP  
 * attribute name. 
 * <P>
 *
 * @author  Alan Kaminsky
 */
public final class NumberUp extends IntegerSyntax
    implements DocAttribute, PrintRequestAttribute, PrintJobAttribute {

    /**
     * Construct a new number up attribute with the given integer value. 
     *
     * @param  value  Integer value.
     *
     * @exception  IllegalArgumentException
     *   (Unchecked exception) Thrown if <CODE>value</CODE> is less than 1.
     */
    public NumberUp(int value) {
	super (value, 1, Integer.MAX_VALUE);
    }

    /**
     * Returns whether this number up attribute is equivalent to the passed in 
     * object. To be equivalent, all of the following conditions must be true: 
     * <OL TYPE=1>
     * <LI>
     * <CODE>object</CODE> is not null.
     * <LI>
     * <CODE>object</CODE> is an instance of class NumberUp.
     * <LI>
     * This number up attribute's value and <CODE>object</CODE>'s value are 
     * equal. 
     * </OL>
     *
     * @param  object  Object to compare to.
     *
     * @return  True if <CODE>object</CODE> is equivalent to this number up
     *          attribute, false otherwise. 
     */
    public boolean equals(Object object) {
	return (super.equals(object) && object instanceof NumberUp);
    }

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

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

}