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-/*
- * Copyright 2005-2008 Sun Microsystems, Inc. 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. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- */
-
-package javax.vecmath;
-
-
-/**
- * A 2-element tuple represented by signed integer x,y
- * coordinates.
- *
- * @since vecmath 1.4
- */
-public abstract class Tuple2i implements java.io.Serializable, Cloneable {
-
- static final long serialVersionUID = -3555701650170169638L;
-
- /**
- * The x coordinate.
- */
- public int x;
-
- /**
- * The y coordinate.
- */
- public int y;
-
-
- /**
- * Constructs and initializes a Tuple2i from the specified
- * x and y coordinates.
- * @param x the x coordinate
- * @param y the y coordinate
- */
- public Tuple2i(int x, int y) {
- this.x = x;
- this.y = y;
- }
-
-
- /**
- * Constructs and initializes a Tuple2i from the array of length 2.
- * @param t the array of length 2 containing x and y in order.
- */
- public Tuple2i(int[] t) {
- this.x = t[0];
- this.y = t[1];
- }
-
-
- /**
- * Constructs and initializes a Tuple2i from the specified Tuple2i.
- * @param t1 the Tuple2i containing the initialization x and y
- * data.
- */
- public Tuple2i(Tuple2i t1) {
- this.x = t1.x;
- this.y = t1.y;
- }
-
-
- /**
- * Constructs and initializes a Tuple2i to (0,0).
- */
- public Tuple2i() {
- this.x = 0;
- this.y = 0;
- }
-
-
- /**
- * Sets the value of this tuple to the specified x and y
- * coordinates.
- * @param x the x coordinate
- * @param y the y coordinate
- */
- public final void set(int x, int y) {
- this.x = x;
- this.y = y;
- }
-
-
- /**
- * Sets the value of this tuple to the specified coordinates in the
- * array of length 2.
- * @param t the array of length 2 containing x and y in order.
- */
- public final void set(int[] t) {
- this.x = t[0];
- this.y = t[1];
- }
-
-
- /**
- * Sets the value of this tuple to the value of tuple t1.
- * @param t1 the tuple to be copied
- */
- public final void set(Tuple2i t1) {
- this.x = t1.x;
- this.y = t1.y;
- }
-
-
- /**
- * Copies the values of this tuple into the array t.
- * @param t is the array
- */
- public final void get(int[] t) {
- t[0] = this.x;
- t[1] = this.y;
- }
-
-
- /**
- * Copies the values of this tuple into the tuple t.
- * @param t is the target tuple
- */
- public final void get(Tuple2i t) {
- t.x = this.x;
- t.y = this.y;
- }
-
-
- /**
- * Sets the value of this tuple to the sum of tuples t1 and t2.
- * @param t1 the first tuple
- * @param t2 the second tuple
- */
- public final void add(Tuple2i t1, Tuple2i t2) {
- this.x = t1.x + t2.x;
- this.y = t1.y + t2.y;
- }
-
-
- /**
- * Sets the value of this tuple to the sum of itself and t1.
- * @param t1 the other tuple
- */
- public final void add(Tuple2i t1) {
- this.x += t1.x;
- this.y += t1.y;
- }
-
-
- /**
- * Sets the value of this tuple to the difference
- * of tuples t1 and t2 (this = t1 - t2).
- * @param t1 the first tuple
- * @param t2 the second tuple
- */
- public final void sub(Tuple2i t1, Tuple2i t2) {
- this.x = t1.x - t2.x;
- this.y = t1.y - t2.y;
- }
-
-
- /**
- * Sets the value of this tuple to the difference
- * of itself and t1 (this = this - t1).
- * @param t1 the other tuple
- */
- public final void sub(Tuple2i t1) {
- this.x -= t1.x;
- this.y -= t1.y;
- }
-
-
- /**
- * Sets the value of this tuple to the negation of tuple t1.
- * @param t1 the source tuple
- */
- public final void negate(Tuple2i t1) {
- this.x = -t1.x;
- this.y = -t1.y;
- }
-
-
- /**
- * Negates the value of this tuple in place.
- */
- public final void negate() {
- this.x = -this.x;
- this.y = -this.y;
- }
-
-
- /**
- * Sets the value of this tuple to the scalar multiplication
- * of tuple t1.
- * @param s the scalar value
- * @param t1 the source tuple
- */
- public final void scale(int s, Tuple2i t1) {
- this.x = s*t1.x;
- this.y = s*t1.y;
- }
-
-
- /**
- * Sets the value of this tuple to the scalar multiplication
- * of the scale factor with this.
- * @param s the scalar value
- */
- public final void scale(int s) {
- this.x *= s;
- this.y *= s;
- }
-
-
- /**
- * Sets the value of this tuple to the scalar multiplication
- * of tuple t1 plus tuple t2 (this = s*t1 + t2).
- * @param s the scalar value
- * @param t1 the tuple to be multipled
- * @param t2 the tuple to be added
- */
- public final void scaleAdd(int s, Tuple2i t1, Tuple2i t2) {
- this.x = s*t1.x + t2.x;
- this.y = s*t1.y + t2.y;
- }
-
-
- /**
- * Sets the value of this tuple to the scalar multiplication
- * of itself and then adds tuple t1 (this = s*this + t1).
- * @param s the scalar value
- * @param t1 the tuple to be added
- */
- public final void scaleAdd(int s, Tuple2i t1) {
- this.x = s*this.x + t1.x;
- this.y = s*this.y + t1.y;
- }
-
-
- /**
- * Returns a string that contains the values of this Tuple2i.
- * The form is (x,y).
- * @return the String representation
- */
- @Override
- public String toString() {
- return "(" + this.x + ", " + this.y + ")";
- }
-
-
- /**
- * Returns true if the Object t1 is of type Tuple2i and all of the
- * data members of t1 are equal to the corresponding data members in
- * this Tuple2i.
- * @param t1 the object with which the comparison is made
- */
- @Override
- public boolean equals(Object t1) {
- try {
- Tuple2i t2 = (Tuple2i) t1;
- return(this.x == t2.x && this.y == t2.y);
- }
- catch (NullPointerException e2) {
- return false;
- }
- catch (ClassCastException e1) {
- return false;
- }
- }
-
-
- /**
- * Returns a hash code value based on the data values in this
- * object. Two different Tuple2i objects with identical data values
- * (i.e., Tuple2i.equals returns true) will return the same hash
- * code value. Two objects with different data members may return the
- * same hash value, although this is not likely.
- * @return the integer hash code value
- */
- @Override
- public int hashCode() {
- long bits = 1L;
- bits = 31L * bits + (long)x;
- bits = 31L * bits + (long)y;
- return (int) (bits ^ (bits >> 32));
- }
-
-
- /**
- * Clamps the tuple parameter to the range [low, high] and
- * places the values into this tuple.
- * @param min the lowest value in the tuple after clamping
- * @param max the highest value in the tuple after clamping
- * @param t the source tuple, which will not be modified
- */
- public final void clamp(int min, int max, Tuple2i t) {
- if( t.x > max ) {
- x = max;
- } else if( t.x < min ) {
- x = min;
- } else {
- x = t.x;
- }
-
- if( t.y > max ) {
- y = max;
- } else if( t.y < min ) {
- y = min;
- } else {
- y = t.y;
- }
- }
-
-
- /**
- * Clamps the minimum value of the tuple parameter to the min
- * parameter and places the values into this tuple.
- * @param min the lowest value in the tuple after clamping
- * @param t the source tuple, which will not be modified
- */
- public final void clampMin(int min, Tuple2i t) {
- if( t.x < min ) {
- x = min;
- } else {
- x = t.x;
- }
-
- if( t.y < min ) {
- y = min;
- } else {
- y = t.y;
- }
- }
-
-
- /**
- * Clamps the maximum value of the tuple parameter to the max
- * parameter and places the values into this tuple.
- * @param max the highest value in the tuple after clamping
- * @param t the source tuple, which will not be modified
- */
- public final void clampMax(int max, Tuple2i t) {
- if( t.x > max ) {
- x = max;
- } else {
- x = t.x;
- }
-
- if( t.y > max ) {
- y = max;
- } else {
- y = t.y;
- }
- }
-
-
- /**
- * Sets each component of the tuple parameter to its absolute
- * value and places the modified values into this tuple.
- * @param t the source tuple, which will not be modified
- */
- public final void absolute(Tuple2i t) {
- x = Math.abs(t.x);
- y = Math.abs(t.y);
- }
-
-
- /**
- * Clamps this tuple to the range [low, high].
- * @param min the lowest value in this tuple after clamping
- * @param max the highest value in this tuple after clamping
- */
- public final void clamp(int min, int max) {
- if( x > max ) {
- x = max;
- } else if( x < min ) {
- x = min;
- }
-
- if( y > max ) {
- y = max;
- } else if( y < min ) {
- y = min;
- }
- }
-
-
- /**
- * Clamps the minimum value of this tuple to the min parameter.
- * @param min the lowest value in this tuple after clamping
- */
- public final void clampMin(int min) {
- if (x < min)
- x=min;
-
- if (y < min)
- y = min;
- }
-
-
- /**
- * Clamps the maximum value of this tuple to the max parameter.
- * @param max the highest value in the tuple after clamping
- */
- public final void clampMax(int max) {
- if (x > max)
- x = max;
-
- if (y > max)
- y = max;
- }
-
-
- /**
- * Sets each component of this tuple to its absolute value.
- */
- public final void absolute() {
- x = Math.abs(x);
- y = Math.abs(y);
- }
-
- /**
- * Creates a new object of the same class as this object.
- *
- * @return a clone of this instance.
- * @exception OutOfMemoryError if there is not enough memory.
- * @see java.lang.Cloneable
- */
- @Override
- public Object clone() {
- // Since there are no arrays we can just use Object.clone()
- try {
- return super.clone();
- } catch (CloneNotSupportedException e) {
- // this shouldn't happen, since we are Cloneable
- throw new InternalError();
- }
- }
-
-
- /**
- * Get the <i>x</i> coordinate.
- *
- * @return the x coordinate.
- *
- * @since vecmath 1.5
- */
- public final int getX() {
- return x;
- }
-
-
- /**
- * Set the <i>x</i> coordinate.
- *
- * @param x value to <i>x</i> coordinate.
- *
- * @since vecmath 1.5
- */
- public final void setX(int x) {
- this.x = x;
- }
-
-
- /**
- * Get the <i>y</i> coordinate.
- *
- * @return the <i>y</i> coordinate.
- *
- * @since vecmath 1.5
- */
- public final int getY() {
- return y;
- }
-
-
- /**
- * Set the <i>y</i> coordinate.
- *
- * @param y value to <i>y</i> coordinate.
- *
- * @since vecmath 1.5
- */
- public final void setY(int y) {
- this.y = y;
- }
-}
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