JDK 1.1 Source Code Directory
JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes:
"C:\fyicenter\jdk-1.1.8\src".
Here is the list of Java classes of the JDK 1.1 source code:
✍: FYIcenter
⏎ java/awt/Rectangle.java
/*
* @(#)Rectangle.java 1.29 01/12/10
*
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package java.awt;
/**
* A rectangle specifies an area in a coordinate space that is
* defined by the rectangle's top-left point (<i>x</i>, <i>y</i>)
* in the coordinate space, its width, and its height.
* <p>
* A rectangle's <code>width</code> and <code>height</code> are
* public fields. The constructors that allow you to create a
* rectangle, and the methods that allow you to modify one, do not
* prevent you from setting a negative value for width or height.
* <p>
* A rectangle whose width or height is negative is considered
* empty, and all methods defined by the <code>Rectangle</code> class
* behave accordingly. If the rectangle is empty, then the method
* <code>isEmpty</code> returns <code>true</code>. No point can be
* contained by or inside an empty rectangle, however the values of
* <code>width</code> and <code>height</code> are still valid. An
* empty rectangle still has a location in the coordinate space, and
* methods that change its size or location remain valid. The
* behavior of methods that operate on more than one rectangle is
* undefined if any of the participating rectangles has a negative
* <code>width</code> or <code>height</code>. These methods include
* <code>intersects</code>, <code>intersection</code>, and
* <code>union</code>.
*
* @version 1.29, 12/10/01
* @author Sami Shaio
* @since JDK1.0
*/
public class Rectangle implements Shape, java.io.Serializable {
/**
* The <i>x</i> coordinate of the rectangle.
* @since JDK1.0
*/
public int x;
/**
* The <i>y</i> coordinate of the rectangle.
* @since JDK1.0
*/
public int y;
/**
* The width of the rectangle.
* @since JDK1.0.
*/
public int width;
/**
* The height of the rectangle.
* @since JDK1.0
*/
public int height;
/*
* JDK 1.1 serialVersionUID
*/
private static final long serialVersionUID = -4345857070255674764L;
/**
* Constructs a new rectangle whose top-left corner is at (0, 0)
* in the coordinate space, and whose width and height are zero.
* @since JDK1.0
*/
public Rectangle() {
this(0, 0, 0, 0);
}
/**
* Constructs a new rectangle, initialized to match the values of
* the specificed rectangle.
* @param r a rectangle from which to copy initial values.
* @since JDK1.1
*/
public Rectangle(Rectangle r) {
this(r.x, r.y, r.width, r.height);
}
/**
* Constructs a new rectangle whose top-left corner is specified as
* (<code>x</code>, <code>y</code>) and whose width and height
* are specified by the arguments of the same name.
* @param x the <i>x</i> coordinate.
* @param y the <i>y</i> coordinate.
* @param width the width of the rectangle.
* @param height the height of the rectangle.
* @since JDK1.0
*/
public Rectangle(int x, int y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
/**
* Constructs a new rectangle whose top-left corner is at (0, 0)
* in the coordinate space, and whose width and height are specified
* by the arguments of the same name.
* @param width the width of the rectangle.
* @param height the height of the rectangle.
* @since JDK1.0
*/
public Rectangle(int width, int height) {
this(0, 0, width, height);
}
/**
* Constructs a new rectangle whose top-left corner is specified
* by the <code>point</code> argument, and whose width and height
* are specified by the <code>dimension</code> argument.
* @param p a point, the top-left corner of the rectangle.
* @param d a dimension, representing the width and height.
* @since JDK1.0
*/
public Rectangle(Point p, Dimension d) {
this(p.x, p.y, d.width, d.height);
}
/**
* Constructs a new rectangle whose top-left corner is the
* specified point, and whose width and height are zero.
* @param p the top left corner of the rectangle.
* @since JDK1.0
*/
public Rectangle(Point p) {
this(p.x, p.y, 0, 0);
}
/**
* Constructs a new rectangle whose top left corner is
* (0, 0) and whose width and height are specified
* by the <code>dimension</code> argument.
* @param d a dimension, specifying width and height.
* @since JDK1.0
*/
public Rectangle(Dimension d) {
this(0, 0, d.width, d.height);
}
/**
* Gets the bounding rectangle of this rectangle.
* <p>
* This method is included for completeness, to parallel the
* <code>getBounds</code> method of <code>Component</code>.
* @return a new rectangle, equal to the bounding rectangle
* for this rectangle.
* @see java.awt.Component#getBounds
* @since JDK1.1
*/
public Rectangle getBounds() {
return new Rectangle(x, y, width, height);
}
/**
* Sets the bounding rectangle of this rectangle to match
* the specified rectangle.
* <p>
* This method is included for completeness, to parallel the
* <code>setBounds</code> method of <code>Component</code>.
* @param r a rectangle.
* @see java.awt.Component#setBounds(java.awt.Rectangle)
* @since JDK1.1
*/
public void setBounds(Rectangle r) {
setBounds(r.x, r.y, r.width, r.height);
}
/**
* Sets the bounding rectangle of this rectangle to the specified
* values for <code>x</code>, <code>y</code>, <code>width</code>,
* and <code>height</code>.
* <p>
* This method is included for completeness, to parallel the
* <code>setBounds</code> method of <code>Component</code>.
* @param x the new <i>x</i> coordinate for the top-left
* corner of this rectangle.
* @param y the new <i>y</i> coordinate for the top-left
* corner of this rectangle.
* @param width the new width for this rectangle.
* @param height the new height for this rectangle.
* @see java.awt.Component#setBounds(int, int, int, int)
* @since JDK1.1
*/
public void setBounds(int x, int y, int width, int height) {
reshape(x, y, width, height);
}
/**
* @deprecated As of JDK version 1.1,
* replaced by <code>setBounds(int, int, int, int)</code>.
*/
public void reshape(int x, int y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
/**
* Returns the location of this rectangle.
* <p>
* This method is included for completeness, to parallel the
* <code>getLocation</code> method of <code>Component</code>.
* @see java.awt.Component#getLocation
* @since JDK1.1
*/
public Point getLocation() {
return new Point(x, y);
}
/**
* Moves the rectangle to the specified location.
* <p>
* This method is included for completeness, to parallel the
* <code>setLocation</code> method of <code>Component</code>.
* @param p the new location for the point.
* @see java.awt.Component#setLocation(java.awt.Point)
* @since JDK1.1
*/
public void setLocation(Point p) {
setLocation(p.x, p.y);
}
/**
* Moves the rectangle to the specified location.
* <p>
* This method is included for completeness, to parallel the
* <code>setLocation</code> method of <code>Component</code>.
* @param x the <i>x</i> coordinate of the new location.
* @param y the <i>y</i> coordinate of the new location.
* @see java.awt.Component#setLocation(int, int)
* @since JDK1.1
*/
public void setLocation(int x, int y) {
move(x, y);
}
/**
* @deprecated As of JDK version 1.1,
* replaced by <code>setLocation(int, int)</code>.
*/
public void move(int x, int y) {
this.x = x;
this.y = y;
}
/**
* Translates the rectangle the indicated distance,
* to the right along the <i>x</i> coordinate axis, and
* downward along the <i>y</i> coordinate axis.
* @param dx the distance to move the rectangle
* along the <i>x</i> axis.
* @param dy the distance to move the rectangle
* along the <i>y</i> axis.
* @see java.awt.Rectangle#setLocation(int, int)
* @see java.awt.Rectangle#setLocation(java.awt.Point)
* @since JDK1.0
*/
public void translate(int x, int y) {
this.x += x;
this.y += y;
}
/**
* Gets the size (width and height) of this rectangle.
* <p>
* This method is included for completeness, to parallel the
* <code>getSize</code> method of <code>Component</code>.
* @return a dimension, representing the size.
* @see java.awt.Component#getSize
* @since JDK1.1
*/
public Dimension getSize() {
return new Dimension(width, height);
}
/**
* Sets the size of this rectangle to match the specified dimension.
* <p>
* This method is included for completeness, to parallel the
* <code>setSize</code> method of <code>Component</code>.
* @param d the new size for the Dimension object
* @see java.awt.Component#setSize(java.awt.Dimension)
* @since JDK1.1
*/
public void setSize(Dimension d) {
setSize(d.width, d.height);
}
/**
* Sets the size of this rectangle to the specified width and height.
* <p>
* This method is included for completeness, to parallel the
* <code>setSize</code> method of <code>Component</code>.
* @param width the new width for this rectangle object.
* @param height the new height for this rectangle object.
* @see java.awt.Component#setSize(int, int)
* @since JDK1.1
*/
public void setSize(int width, int height) {
resize(width, height);
}
/**
* @deprecated As of JDK version 1.1,
* replaced by <code>setSize(int, int)</code>.
*/
public void resize(int width, int height) {
this.width = width;
this.height = height;
}
/**
* Checks whether this rectangle contains the specified point.
* @param p the point (location) to test.
* @return <code>true</code> if the point
* (<i>x</i>, <i>y</i>) is inside this rectangle;
* <code>false</code> otherwise.
* @since JDK1.1
*/
public boolean contains(Point p) {
return contains(p.x, p.y);
}
/**
* Checks whether this rectangle contains the point
* at the specified location (<i>x</i>, <i>y</i>).
* @param x the <i>x</i> coordinate.
* @param y the <i>y</i> coordinate.
* @return <code>true</code> if the point
* (<i>x</i>, <i>y</i>) is inside this rectangle;
* <code>false</code> otherwise.
* @since JDK1.1
*/
public boolean contains(int x, int y) {
return inside(x, y);
}
/**
* @deprecated As of JDK version 1.1,
* replaced by <code>contains(int, int)</code>.
*/
public boolean inside(int x, int y) {
return (x >= this.x) && ((x - this.x) < this.width) && (y >= this.y) && ((y-this.y) < this.height);
}
/**
* Determines whether this rectangle and the specified rectangle
* intersect. Two rectangles intersect if their intersection is
* nonempty.
* @param r a rectangle.
* @return <code>true</code> if the specified rectangle
* and this rectangle insersect;
* <code>false</code> otherwise.
* @since JDK1.0
*/
public boolean intersects(Rectangle r) {
return !((r.x + r.width <= x) ||
(r.y + r.height <= y) ||
(r.x >= x + width) ||
(r.y >= y + height));
}
/**
* Computes the intersection of this rectangle with the
* specified rectangle. Returns a new rectangle that
* represents the intersection of the two rectangles.
* @param r a rectangle.
* @return the largest rectangle contained in both the
* specified rectangle and in this rectangle.
* @since JDK1.0
*/
public Rectangle intersection(Rectangle r) {
int x1 = Math.max(x, r.x);
int x2 = Math.min(x + width, r.x + r.width);
int y1 = Math.max(y, r.y);
int y2 = Math.min(y + height, r.y + r.height);
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
}
/**
* Computes the union of this rectangle with the
* specified rectangle. Returns a new rectangle that
* represents the union of the two rectangles.
* @param r a rectangle.
* @return the smallest rectangle containing both the specified
* rectangle and this rectangle.
* @since JDK1.0
*/
public Rectangle union(Rectangle r) {
int x1 = Math.min(x, r.x);
int x2 = Math.max(x + width, r.x + r.width);
int y1 = Math.min(y, r.y);
int y2 = Math.max(y + height, r.y + r.height);
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
}
/**
* Adds a point, specified by the integer arguments <code>newx</code>
* and <code>newy</code>, to this rectangle. The resulting rectangle is
* the smallest rectangle that contains both the original rectangle
* and the specified point.
* <p>
* After adding a point, a call to <code>contains<code> with the
* added point as an argument will not necessarily return
* <code>true</code>. The <code>contains</code> method does not
* return <code>true</code> for points on the right or bottom
* edges of a rectangle. Therefore if the added point falls on
* the left or bottom edge of the enlarged rectangle,
* <code>contains</code> will return <code>false</code> for that point.
*
* @param newx the <i>x</i> coordinate of the new point.
* @param newy the <i>y</i> coordinate of the new point.
* @since JDK1.0
*/
public void add(int newx, int newy) {
int x1 = Math.min(x, newx);
int x2 = Math.max(x + width, newx);
int y1 = Math.min(y, newy);
int y2 = Math.max(y + height, newy);
x = x1;
y = y1;
width = x2 - x1;
height = y2 - y1;
}
/**
* Adds the point <code>pt</code> to this rectangle. The resulting
* rectangle is the smallest rectangle that contains both the
* original rectangle and the specified point.
* <p>
* After adding a point, a call to <code>contains<code> with the
* added point as an argument will not necessarily return
* <code>true</code>. The <code>contains</code> method does not
* return <code>true</code> for points on the right or bottom
* edges of a rectangle. Therefore if the added point falls on
* the left or bottom edge of the enlarged rectangle,
* <code>contains</code> will return <code>false</code> for that point.
*
* @param pt the new point to add to the rectangle.
* @since JDK1.0
*/
public void add(Point pt) {
add(pt.x, pt.y);
}
/**
* Adds a rectangle to this rectangle. The resulting rectangle is
* the union of the two rectangles.
* @param a rectangle.
* @since JDK1.0
*/
public void add(Rectangle r) {
int x1 = Math.min(x, r.x);
int x2 = Math.max(x + width, r.x + r.width);
int y1 = Math.min(y, r.y);
int y2 = Math.max(y + height, r.y + r.height);
x = x1;
y = y1;
width = x2 - x1;
height = y2 - y1;
}
/**
* Grows the rectangle both horizontally and vertically.
* <p>
* This method modifies the rectangle so that it is
* <code>h</code> units larger on both the left and right side,
* and <code>v</code> units larger at both the top and bottom.
* <p>
* The new rectangle has (<code>x - h</code>,
* <code>y - v</code>) as its top-left corner, a
* width of
* <code>width</code> <code>+</code> <code>2h</code>,
* and a height of
* <code>height</code> <code>+</code> <code>2v</code>.
* <p>
* If negative values are supplied for <code>h</code> and
* <code>v</code>, the size of the rectangle decreases accordingly.
* The <code>grow</code> method does not check whether the resulting
* values of <code>width</code> and <code>height</code> are
* non-negative.
* @param h the horizontal expansion.
* @param v the vertical expansion.
* @since JDK1.0
*/
public void grow(int h, int v) {
x -= h;
y -= v;
width += h * 2;
height += v * 2;
}
/**
* Determines whether this rectangle is empty. A rectangle is empty if
* its width or its height is less than or equal to zero.
* @return <code>true</code> if this rectangle is empty;
* <code>false</code> otherwise.
* @since JDK1.0
*/
public boolean isEmpty() {
return (width <= 0) || (height <= 0);
}
/**
* Returns the hashcode for this rectangle.
* @return the hashcode for this rectangle.
* @since JDK1.0
*/
public int hashCode() {
return x ^ (y*37) ^ (width*43) ^ (height*47);
}
/**
* Checks whether two rectangles are equal.
* <p>
* The result is <kbd>true</kbd> if and only if the argument is not
* <kbd>null</kbd> and is a <kbd>Rectangle</kbd> object that has the
* same top-left corner, width, and height as this rectangle.
* @param obj the object to compare with.
* @return <code>true</code> if the objects are equal;
* <code>false</code> otherwise.
* @since JDK1.0
*/
public boolean equals(Object obj) {
if (obj instanceof Rectangle) {
Rectangle r = (Rectangle)obj;
return (x == r.x) && (y == r.y) && (width == r.width) && (height == r.height);
}
return false;
}
/**
* Returns a string representation of this rectangle
* and its values.
* @return a string representation of this rectangle.
* @since JDK1.0
*/
public String toString() {
return getClass().getName() + "[x=" + x + ",y=" + y + ",width=" + width + ",height=" + height + "]";
}
}
⏎ java/awt/Rectangle.java
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