author | avstepan |
Thu, 26 Mar 2015 14:18:42 +0400 (2015-03-26) | |
changeset 29882 | d36e2fcc5f55 |
parent 25859 | 3317bb8137f4 |
child 35667 | ed476aba94de |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.awt; |
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/** |
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* An <code>Insets</code> object is a representation of the borders |
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* of a container. It specifies the space that a container must leave |
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* at each of its edges. The space can be a border, a blank space, or |
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* a title. |
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* |
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* @author Arthur van Hoff |
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* @author Sami Shaio |
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* @see java.awt.LayoutManager |
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* @see java.awt.Container |
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* @since 1.0 |
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*/ |
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public class Insets implements Cloneable, java.io.Serializable { |
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/** |
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* The inset from the top. |
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* This value is added to the Top of the rectangle |
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* to yield a new location for the Top. |
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* |
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* @serial |
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* @see #clone() |
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*/ |
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public int top; |
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/** |
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* The inset from the left. |
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* This value is added to the Left of the rectangle |
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* to yield a new location for the Left edge. |
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* |
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* @serial |
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* @see #clone() |
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*/ |
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public int left; |
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/** |
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* The inset from the bottom. |
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* This value is subtracted from the Bottom of the rectangle |
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* to yield a new location for the Bottom. |
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* |
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* @serial |
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* @see #clone() |
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*/ |
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public int bottom; |
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/** |
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* The inset from the right. |
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* This value is subtracted from the Right of the rectangle |
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* to yield a new location for the Right edge. |
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* |
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* @serial |
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* @see #clone() |
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*/ |
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public int right; |
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/* |
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* JDK 1.1 serialVersionUID |
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*/ |
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private static final long serialVersionUID = -2272572637695466749L; |
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static { |
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/* ensure that the necessary native libraries are loaded */ |
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Toolkit.loadLibraries(); |
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if (!GraphicsEnvironment.isHeadless()) { |
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initIDs(); |
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} |
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} |
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/** |
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* Creates and initializes a new <code>Insets</code> object with the |
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* specified top, left, bottom, and right insets. |
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* @param top the inset from the top. |
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* @param left the inset from the left. |
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* @param bottom the inset from the bottom. |
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* @param right the inset from the right. |
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*/ |
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public Insets(int top, int left, int bottom, int right) { |
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this.top = top; |
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this.left = left; |
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this.bottom = bottom; |
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this.right = right; |
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} |
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/** |
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* Set top, left, bottom, and right to the specified values |
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* |
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* @param top the inset from the top. |
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* @param left the inset from the left. |
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* @param bottom the inset from the bottom. |
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* @param right the inset from the right. |
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* @since 1.5 |
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*/ |
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public void set(int top, int left, int bottom, int right) { |
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this.top = top; |
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this.left = left; |
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this.bottom = bottom; |
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this.right = right; |
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} |
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/** |
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* Checks whether two insets objects are equal. Two instances |
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* of <code>Insets</code> are equal if the four integer values |
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* of the fields <code>top</code>, <code>left</code>, |
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* <code>bottom</code>, and <code>right</code> are all equal. |
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* @return <code>true</code> if the two insets are equal; |
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* otherwise <code>false</code>. |
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24865
09b1d992ca72
8044740: Convert all JDK versions used in @since tag to 1.n[.n] in jdk repo
henryjen
parents:
23010
diff
changeset
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* @since 1.1 |
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*/ |
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public boolean equals(Object obj) { |
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if (obj instanceof Insets) { |
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Insets insets = (Insets)obj; |
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return ((top == insets.top) && (left == insets.left) && |
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(bottom == insets.bottom) && (right == insets.right)); |
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} |
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return false; |
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} |
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/** |
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* Returns the hash code for this Insets. |
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* |
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* @return a hash code for this Insets. |
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*/ |
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public int hashCode() { |
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int sum1 = left + bottom; |
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int sum2 = right + top; |
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int val1 = sum1 * (sum1 + 1)/2 + left; |
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int val2 = sum2 * (sum2 + 1)/2 + top; |
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int sum3 = val1 + val2; |
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return sum3 * (sum3 + 1)/2 + val2; |
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} |
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/** |
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* Returns a string representation of this <code>Insets</code> object. |
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* This method is intended to be used only for debugging purposes, and |
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* the content and format of the returned string may vary between |
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* implementations. The returned string may be empty but may not be |
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* <code>null</code>. |
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* |
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* @return a string representation of this <code>Insets</code> object. |
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*/ |
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public String toString() { |
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return getClass().getName() + "[top=" + top + ",left=" + left + ",bottom=" + bottom + ",right=" + right + "]"; |
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} |
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/** |
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* Create a copy of this object. |
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* @return a copy of this <code>Insets</code> object. |
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*/ |
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public Object clone() { |
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try { |
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return super.clone(); |
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} catch (CloneNotSupportedException e) { |
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// this shouldn't happen, since we are Cloneable |
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throw new InternalError(e); |
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} |
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} |
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/** |
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* Initialize JNI field and method IDs |
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*/ |
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private static native void initIDs(); |
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} |