1 /*
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
61 * Storing the values internally in common units of dphi lets two resolution
62 * attributes be compared without regard to the units in which they were
63 * created; for example, 300 dpcm will compare equal to 762 dpi, as they both
64 * are stored as 76200 dphi. In particular, a lookup service can
65 * match resolution attributes based on equality of their serialized
66 * representations regardless of the units in which they were created. Again,
67 * using integers for internal storage allows precise equality comparisons to be
68 * done, which would not be guaranteed if a floating point representation were
69 * used.
70 * <P>
71 * The exported constant {@link #DPI DPI} is actually the
72 * conversion factor by which to multiply a value in dpi to get the value in
73 * dphi. Likewise, the exported constant {@link #DPCM DPCM} is the
74 * conversion factor by which to multiply a value in dpcm to get the value in
75 * dphi. A client can specify a resolution value in units other than dpi or dpcm
76 * by supplying its own conversion factor. However, since the internal units of
77 * dphi was chosen with supporting only the external units of dpi and dpcm in
78 * mind, there is no guarantee that the conversion factor for the client's units
79 * will be an exact integer. If the conversion factor isn't an exact integer,
80 * resolution values in the client's units won't be stored precisely.
81 * <P>
82 *
83 * @author David Mendenhall
84 * @author Alan Kaminsky
85 */
86 public abstract class ResolutionSyntax implements Serializable, Cloneable {
87
88 private static final long serialVersionUID = 2706743076526672017L;
89
90 /**
91 * Cross feed direction resolution in units of dots per 100 inches (dphi).
92 * @serial
93 */
94 private int crossFeedResolution;
95
96 /**
97 * Feed direction resolution in units of dots per 100 inches (dphi).
98 * @serial
99 */
100 private int feedResolution;
101
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1 /*
2 * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
61 * Storing the values internally in common units of dphi lets two resolution
62 * attributes be compared without regard to the units in which they were
63 * created; for example, 300 dpcm will compare equal to 762 dpi, as they both
64 * are stored as 76200 dphi. In particular, a lookup service can
65 * match resolution attributes based on equality of their serialized
66 * representations regardless of the units in which they were created. Again,
67 * using integers for internal storage allows precise equality comparisons to be
68 * done, which would not be guaranteed if a floating point representation were
69 * used.
70 * <P>
71 * The exported constant {@link #DPI DPI} is actually the
72 * conversion factor by which to multiply a value in dpi to get the value in
73 * dphi. Likewise, the exported constant {@link #DPCM DPCM} is the
74 * conversion factor by which to multiply a value in dpcm to get the value in
75 * dphi. A client can specify a resolution value in units other than dpi or dpcm
76 * by supplying its own conversion factor. However, since the internal units of
77 * dphi was chosen with supporting only the external units of dpi and dpcm in
78 * mind, there is no guarantee that the conversion factor for the client's units
79 * will be an exact integer. If the conversion factor isn't an exact integer,
80 * resolution values in the client's units won't be stored precisely.
81 *
82 * @author David Mendenhall
83 * @author Alan Kaminsky
84 */
85 public abstract class ResolutionSyntax implements Serializable, Cloneable {
86
87 private static final long serialVersionUID = 2706743076526672017L;
88
89 /**
90 * Cross feed direction resolution in units of dots per 100 inches (dphi).
91 * @serial
92 */
93 private int crossFeedResolution;
94
95 /**
96 * Feed direction resolution in units of dots per 100 inches (dphi).
97 * @serial
98 */
99 private int feedResolution;
100
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