/* * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */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";    } }