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/* * @(#)PrinterResolution.java 1.10 05/11/17 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.print.attribute.standard; import javax.print.attribute.Attribute; import javax.print.attribute.ResolutionSyntax; import javax.print.attribute.DocAttribute; import javax.print.attribute.PrintRequestAttribute; import javax.print.attribute.PrintJobAttribute; /** * Class PrinterResolution is a printing attribute class that specifies an * exact resolution supported by a printer or to be used for a print job. * This attribute assumes that printers have a small set of device resolutions * at which they can operate rather than a continuum. * <p> * PrinterResolution is used in multiple ways: * <OL TYPE=1> * <LI> * When a client searches looking for a printer that supports the client's * desired resolution exactly (no more, no less), the client specifies * an instance of class PrinterResolution indicating the exact resolution the * client wants. Only printers supporting that exact resolution will match the * search. * <P> * <LI> * When a client needs to print a job using the client's desired resolution * exactly (no more, no less), the client specifies an instance of class * PrinterResolution as an attribute of the Print Job. This will fail if the * Print Job doesn't support that exact resolution, and Fidelity is set to * true. * </OL> * If a client wants to locate a printer supporting a resolution * greater than some required minimum, then it may be necessary to exclude * this attribute from a lookup request and to directly query the set of * supported resolutions, and specify the one that most closely meets * the client's requirements. * In some cases this may be more simply achieved by specifying a * PrintQuality attribute which often controls resolution. * <P> * <P> * <B>IPP Compatibility:</B> The information needed to construct an IPP * <CODE>"printer-resolution"</CODE> attribute can be obtained by calling * methods on the PrinterResolution object. The category name returned by * <CODE>getName()</CODE> gives the IPP attribute name. * <P> * * @author David Mendenhall * @author Alan Kaminsky */ public final class PrinterResolution extends ResolutionSyntax implements DocAttribute, PrintRequestAttribute, PrintJobAttribute { private static final long serialVersionUID = 13090306561090558L; /** * Construct a new printer resolution attribute from the given items. * * @param crossFeedResolution * Cross feed direction resolution. * @param feedResolution * Feed direction resolution. * @param units * Unit conversion factor, e.g. <code>ResolutionSyntax.DPI</CODE> * or <code>ResolutionSyntax.>DPCM</CODE>. * * @exception IllegalArgumentException * (unchecked exception) Thrown if <CODE>crossFeedResolution</CODE> < * 1 or <CODE>feedResolution</CODE> < 1 or <CODE>units</CODE> < 1. */ public PrinterResolution(int crossFeedResolution, int feedResolution, int units) { super (crossFeedResolution, feedResolution, units); } /** * Returns whether this printer resolution 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 PrinterResolution. * <LI> * This attribute's cross feed direction resolution is equal to * <CODE>object</CODE>'s cross feed direction resolution. * <LI> * This attribute's feed direction resolution is equal to * <CODE>object</CODE>'s feed direction resolution. * </OL> * * @param object Object to compare to. * * @return True if <CODE>object</CODE> is equivalent to this printer * resolution attribute, false otherwise. */ public boolean equals(Object object) { return (super.equals (object) && object instanceof PrinterResolution); } /** * Get the printing attribute class which is to be used as the "category" * for this printing attribute value. * <P> * For class PrinterResolution, the category is class PrinterResolution itself. * * @return Printing attribute class (category), an instance of class * {@link java.lang.Class java.lang.Class}. */ public final Class<? extends Attribute> getCategory() { return PrinterResolution.class; } /** * Get the name of the category of which this attribute value is an * instance. * <P> * For class PrinterResolution, the * category name is <CODE>"printer-resolution"</CODE>. * * @return Attribute category name. */ public final String getName() { return "printer-resolution"; } }