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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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java/pkg/java/awt/Dimension.java+239−0
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1+/*
2+ * Copyright (c) 1995, 2008, 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
23+ * questions.
24+ */
25+
26+package java.awt;
27+
28+import java.awt.geom.Dimension2D;
29+import java.beans.Transient;
30+
31+/**
32+ * The <code>Dimension</code> class encapsulates the width and
33+ * height of a component (in integer precision) in a single object.
34+ * The class is
35+ * associated with certain properties of components. Several methods
36+ * defined by the <code>Component</code> class and the
37+ * <code>LayoutManager</code> interface return a
38+ * <code>Dimension</code> object.
39+ * <p>
40+ * Normally the values of <code>width</code>
41+ * and <code>height</code> are non-negative integers.
42+ * The constructors that allow you to create a dimension do
43+ * not prevent you from setting a negative value for these properties.
44+ * If the value of <code>width</code> or <code>height</code> is
45+ * negative, the behavior of some methods defined by other objects is
46+ * undefined.
47+ *
48+ * @author Sami Shaio
49+ * @author Arthur van Hoff
50+ * @see java.awt.Component
51+ * @see java.awt.LayoutManager
52+ * @since 1.0
53+ */
54+public class Dimension extends Dimension2D implements java.io.Serializable {
55+
56+ /**
57+ * The width dimension; negative values can be used.
58+ *
59+ * @serial
60+ * @see #getSize
61+ * @see #setSize
62+ * @since 1.0
63+ */
64+ public int width;
65+
66+ /**
67+ * The height dimension; negative values can be used.
68+ *
69+ * @serial
70+ * @see #getSize
71+ * @see #setSize
72+ * @since 1.0
73+ */
74+ public int height;
75+
76+ /*
77+ * JDK 1.1 serialVersionUID
78+ */
79+ private static final long serialVersionUID = 4723952579491349524L;
80+
81+ /**
82+ * Initialize JNI field and method IDs
83+ */
84+ private static native void initIDs();
85+
86+ static {
87+ /* ensure that the necessary native libraries are loaded */
88+ Toolkit.loadLibraries();
89+ if (!GraphicsEnvironment.isHeadless()) {
90+ initIDs();
91+ }
92+ }
93+
94+ /**
95+ * Creates an instance of <code>Dimension</code> with a width
96+ * of zero and a height of zero.
97+ */
98+ public Dimension() {
99+ this(0, 0);
100+ }
101+
102+ /**
103+ * Creates an instance of <code>Dimension</code> whose width
104+ * and height are the same as for the specified dimension.
105+ *
106+ * @param d the specified dimension for the
107+ * <code>width</code> and
108+ * <code>height</code> values
109+ */
110+ public Dimension(Dimension d) {
111+ this(d.width, d.height);
112+ }
113+
114+ /**
115+ * Constructs a <code>Dimension</code> and initializes
116+ * it to the specified width and specified height.
117+ *
118+ * @param width the specified width
119+ * @param height the specified height
120+ */
121+ public Dimension(int width, int height) {
122+ this.width = width;
123+ this.height = height;
124+ }
125+
126+ /**
127+ * {@inheritDoc}
128+ * @since 1.2
129+ */
130+ public double getWidth() {
131+ return width;
132+ }
133+
134+ /**
135+ * {@inheritDoc}
136+ * @since 1.2
137+ */
138+ public double getHeight() {
139+ return height;
140+ }
141+
142+ /**
143+ * Sets the size of this <code>Dimension</code> object to
144+ * the specified width and height in double precision.
145+ * Note that if <code>width</code> or <code>height</code>
146+ * are larger than <code>Integer.MAX_VALUE</code>, they will
147+ * be reset to <code>Integer.MAX_VALUE</code>.
148+ *
149+ * @param width the new width for the <code>Dimension</code> object
150+ * @param height the new height for the <code>Dimension</code> object
151+ * @since 1.2
152+ */
153+ public void setSize(double width, double height) {
154+ this.width = (int) Math.ceil(width);
155+ this.height = (int) Math.ceil(height);
156+ }
157+
158+ /**
159+ * Gets the size of this <code>Dimension</code> object.
160+ * This method is included for completeness, to parallel the
161+ * <code>getSize</code> method defined by <code>Component</code>.
162+ *
163+ * @return the size of this dimension, a new instance of
164+ * <code>Dimension</code> with the same width and height
165+ * @see java.awt.Dimension#setSize
166+ * @see java.awt.Component#getSize
167+ * @since 1.1
168+ */
169+ @Transient
170+ public Dimension getSize() {
171+ return new Dimension(width, height);
172+ }
173+
174+ /**
175+ * Sets the size of this <code>Dimension</code> object to the specified size.
176+ * This method is included for completeness, to parallel the
177+ * <code>setSize</code> method defined by <code>Component</code>.
178+ * @param d the new size for this <code>Dimension</code> object
179+ * @see java.awt.Dimension#getSize
180+ * @see java.awt.Component#setSize
181+ * @since 1.1
182+ */
183+ public void setSize(Dimension d) {
184+ setSize(d.width, d.height);
185+ }
186+
187+ /**
188+ * Sets the size of this <code>Dimension</code> object
189+ * to the specified width and height.
190+ * This method is included for completeness, to parallel the
191+ * <code>setSize</code> method defined by <code>Component</code>.
192+ *
193+ * @param width the new width for this <code>Dimension</code> object
194+ * @param height the new height for this <code>Dimension</code> object
195+ * @see java.awt.Dimension#getSize
196+ * @see java.awt.Component#setSize
197+ * @since 1.1
198+ */
199+ public void setSize(int width, int height) {
200+ this.width = width;
201+ this.height = height;
202+ }
203+
204+ /**
205+ * Checks whether two dimension objects have equal values.
206+ */
207+ public boolean equals(Object obj) {
208+ if (obj instanceof Dimension) {
209+ Dimension d = (Dimension)obj;
210+ return (width == d.width) && (height == d.height);
211+ }
212+ return false;
213+ }
214+
215+ /**
216+ * Returns the hash code for this <code>Dimension</code>.
217+ *
218+ * @return a hash code for this <code>Dimension</code>
219+ */
220+ public int hashCode() {
221+ int sum = width + height;
222+ return sum * (sum + 1)/2 + width;
223+ }
224+
225+ /**
226+ * Returns a string representation of the values of this
227+ * <code>Dimension</code> object's <code>height</code> and
228+ * <code>width</code> fields. This method is intended to be used only
229+ * for debugging purposes, and the content and format of the returned
230+ * string may vary between implementations. The returned string may be
231+ * empty but may not be <code>null</code>.
232+ *
233+ * @return a string representation of this <code>Dimension</code>
234+ * object
235+ */
236+ public String toString() {
237+ return getClass().getName() + "[width=" + width + ",height=" + height + "]";
238+ }
239+}