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 /**
29 * An <code>Insets</code> object is a representation of the borders
30 * of a container. It specifies the space that a container must leave
31 * at each of its edges. The space can be a border, a blank space, or
32 * a title.
33 *
34 * @author Arthur van Hoff
35 * @author Sami Shaio
36 * @see java.awt.LayoutManager
37 * @see java.awt.Container
38 * @since 1.0
39 */
40 public class Insets implements Cloneable, java.io.Serializable {
41
42 /**
43 * The inset from the top.
44 * This value is added to the Top of the rectangle
45 * to yield a new location for the Top.
46 *
47 * @serial
48 * @see #clone()
49 */
76 *
77 * @serial
78 * @see #clone()
79 */
80 public int right;
81
82 /*
83 * JDK 1.1 serialVersionUID
84 */
85 private static final long serialVersionUID = -2272572637695466749L;
86
87 static {
88 /* ensure that the necessary native libraries are loaded */
89 Toolkit.loadLibraries();
90 if (!GraphicsEnvironment.isHeadless()) {
91 initIDs();
92 }
93 }
94
95 /**
96 * Creates and initializes a new <code>Insets</code> object with the
97 * specified top, left, bottom, and right insets.
98 * @param top the inset from the top.
99 * @param left the inset from the left.
100 * @param bottom the inset from the bottom.
101 * @param right the inset from the right.
102 */
103 public Insets(int top, int left, int bottom, int right) {
104 this.top = top;
105 this.left = left;
106 this.bottom = bottom;
107 this.right = right;
108 }
109
110 /**
111 * Set top, left, bottom, and right to the specified values
112 *
113 * @param top the inset from the top.
114 * @param left the inset from the left.
115 * @param bottom the inset from the bottom.
116 * @param right the inset from the right.
117 * @since 1.5
118 */
119 public void set(int top, int left, int bottom, int right) {
120 this.top = top;
121 this.left = left;
122 this.bottom = bottom;
123 this.right = right;
124 }
125
126 /**
127 * Checks whether two insets objects are equal. Two instances
128 * of <code>Insets</code> are equal if the four integer values
129 * of the fields <code>top</code>, <code>left</code>,
130 * <code>bottom</code>, and <code>right</code> are all equal.
131 * @return <code>true</code> if the two insets are equal;
132 * otherwise <code>false</code>.
133 * @since 1.1
134 */
135 public boolean equals(Object obj) {
136 if (obj instanceof Insets) {
137 Insets insets = (Insets)obj;
138 return ((top == insets.top) && (left == insets.left) &&
139 (bottom == insets.bottom) && (right == insets.right));
140 }
141 return false;
142 }
143
144 /**
145 * Returns the hash code for this Insets.
146 *
147 * @return a hash code for this Insets.
148 */
149 public int hashCode() {
150 int sum1 = left + bottom;
151 int sum2 = right + top;
152 int val1 = sum1 * (sum1 + 1)/2 + left;
153 int val2 = sum2 * (sum2 + 1)/2 + top;
154 int sum3 = val1 + val2;
155 return sum3 * (sum3 + 1)/2 + val2;
156 }
157
158 /**
159 * Returns a string representation of this <code>Insets</code> object.
160 * This method is intended to be used only for debugging purposes, and
161 * the content and format of the returned string may vary between
162 * implementations. The returned string may be empty but may not be
163 * <code>null</code>.
164 *
165 * @return a string representation of this <code>Insets</code> object.
166 */
167 public String toString() {
168 return getClass().getName() + "[top=" + top + ",left=" + left + ",bottom=" + bottom + ",right=" + right + "]";
169 }
170
171 /**
172 * Create a copy of this object.
173 * @return a copy of this <code>Insets</code> object.
174 */
175 public Object clone() {
176 try {
177 return super.clone();
178 } catch (CloneNotSupportedException e) {
179 // this shouldn't happen, since we are Cloneable
180 throw new InternalError(e);
181 }
182 }
183 /**
184 * Initialize JNI field and method IDs
185 */
186 private static native void initIDs();
187
188 }
|
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 /**
29 * An {@code Insets} object is a representation of the borders
30 * of a container. It specifies the space that a container must leave
31 * at each of its edges. The space can be a border, a blank space, or
32 * a title.
33 *
34 * @author Arthur van Hoff
35 * @author Sami Shaio
36 * @see java.awt.LayoutManager
37 * @see java.awt.Container
38 * @since 1.0
39 */
40 public class Insets implements Cloneable, java.io.Serializable {
41
42 /**
43 * The inset from the top.
44 * This value is added to the Top of the rectangle
45 * to yield a new location for the Top.
46 *
47 * @serial
48 * @see #clone()
49 */
76 *
77 * @serial
78 * @see #clone()
79 */
80 public int right;
81
82 /*
83 * JDK 1.1 serialVersionUID
84 */
85 private static final long serialVersionUID = -2272572637695466749L;
86
87 static {
88 /* ensure that the necessary native libraries are loaded */
89 Toolkit.loadLibraries();
90 if (!GraphicsEnvironment.isHeadless()) {
91 initIDs();
92 }
93 }
94
95 /**
96 * Creates and initializes a new {@code Insets} object with the
97 * specified top, left, bottom, and right insets.
98 * @param top the inset from the top.
99 * @param left the inset from the left.
100 * @param bottom the inset from the bottom.
101 * @param right the inset from the right.
102 */
103 public Insets(int top, int left, int bottom, int right) {
104 this.top = top;
105 this.left = left;
106 this.bottom = bottom;
107 this.right = right;
108 }
109
110 /**
111 * Set top, left, bottom, and right to the specified values
112 *
113 * @param top the inset from the top.
114 * @param left the inset from the left.
115 * @param bottom the inset from the bottom.
116 * @param right the inset from the right.
117 * @since 1.5
118 */
119 public void set(int top, int left, int bottom, int right) {
120 this.top = top;
121 this.left = left;
122 this.bottom = bottom;
123 this.right = right;
124 }
125
126 /**
127 * Checks whether two insets objects are equal. Two instances
128 * of {@code Insets} are equal if the four integer values
129 * of the fields {@code top}, {@code left},
130 * {@code bottom}, and {@code right} are all equal.
131 * @return {@code true} if the two insets are equal;
132 * otherwise {@code false}.
133 * @since 1.1
134 */
135 public boolean equals(Object obj) {
136 if (obj instanceof Insets) {
137 Insets insets = (Insets)obj;
138 return ((top == insets.top) && (left == insets.left) &&
139 (bottom == insets.bottom) && (right == insets.right));
140 }
141 return false;
142 }
143
144 /**
145 * Returns the hash code for this Insets.
146 *
147 * @return a hash code for this Insets.
148 */
149 public int hashCode() {
150 int sum1 = left + bottom;
151 int sum2 = right + top;
152 int val1 = sum1 * (sum1 + 1)/2 + left;
153 int val2 = sum2 * (sum2 + 1)/2 + top;
154 int sum3 = val1 + val2;
155 return sum3 * (sum3 + 1)/2 + val2;
156 }
157
158 /**
159 * Returns a string representation of this {@code Insets} object.
160 * This method is intended to be used only for debugging purposes, and
161 * the content and format of the returned string may vary between
162 * implementations. The returned string may be empty but may not be
163 * {@code null}.
164 *
165 * @return a string representation of this {@code Insets} object.
166 */
167 public String toString() {
168 return getClass().getName() + "[top=" + top + ",left=" + left + ",bottom=" + bottom + ",right=" + right + "]";
169 }
170
171 /**
172 * Create a copy of this object.
173 * @return a copy of this {@code Insets} object.
174 */
175 public Object clone() {
176 try {
177 return super.clone();
178 } catch (CloneNotSupportedException e) {
179 // this shouldn't happen, since we are Cloneable
180 throw new InternalError(e);
181 }
182 }
183 /**
184 * Initialize JNI field and method IDs
185 */
186 private static native void initIDs();
187
188 }
|