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AWT/Swing merge from GNU Classpath.

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From-SVN: r56147
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Bryce McKinlay 2002-08-09 04:26:17 +00:00 • committed by Bryce McKinlay
parent 097684ce62
commit 7bde45b2eb
490 changed files with 86038 additions and 9753 deletions
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240
libjava/java/awt/Dimension.java
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@ -1,4 +1,5 @@
/* Copyright (C) 1999, 2000, 2002 Free Software Foundation
/* Dimension.java -- represents a 2-dimensional span
Copyright (C) 1999, 2000, 2002 Free Software Foundation
This file is part of GNU Classpath.
@ -37,79 +38,168 @@ exception statement from your version. */
package java.awt;
/* Written using "Java Class Libraries", 2nd edition, plus online
* API docs for JDK 1.2 beta from http://www.javasoft.com.
* Status: Believed complete and correct, except that neither toString
* has not been compared with JDK output.
*/
import java.awt.geom.Dimension2D;
import java.io.Serializable;
/**
* This class holds a width and height value pair.
*
* @author Per Bothner <bothner@cygnus.com>
* @author Aaron M. Renn (arenn@urbanophile.com)
* @date Fenruary 8, 1999.
*/
public class Dimension extends java.awt.geom.Dimension2D
implements java.io.Serializable
* This class holds a width and height value pair. This is used in plenty
* of windowing classes, but also has geometric meaning.
*
* <p>It is valid for a dimension to have negative width or height; but it
* is considered to have no area. Therefore, the behavior in various methods
* is undefined in such a case.
*
* <p>There are some public fields; if you mess with them in an inconsistent
* manner, it is your own fault when you get invalid results. Also, this
* class is not threadsafe.
*
* @author Per Bothner <bothner@cygnus.com>
* @author Aaron M. Renn <arenn@urbanophile.com>
* @author Eric Blake <ebb9@email.byu.edu>
* @see Component
* @see LayoutManager
* @since 1.0
* @status updated to 1.14
*/
public class Dimension extends Dimension2D implements Serializable
{
/**
* This width of this object.
* Compatible with JDK 1.0+.
*/
private static final long serialVersionUID = 4723952579491349524L;
/**
* The width of this object.
*
* @see #getSize()
* @see #setSize(double, double)
* @serial the width
*/
public int width;
/**
* The height of this object.
*
* @see #getSize()
* @see #setSize(double, double)
* @serial the height
*/
public int height;
/**
* Initializes a new instance of <code>Dimension</code> with a width
* and height of zero.
* Create a new Dimension with a width and height of zero.
*/
public Dimension () { }
/**
* Initializes a new instance of <code>Dimension</code> to have a width
* and height identical to that of the specified dimension object.
*
* @param dim The <code>Dimension</code> to take the width and height from.
*/
public Dimension (Dimension dim)
public Dimension()
{
this.width = dim.width;
this.height = dim.height;
}
/**
* Initializes a new instance of <code>Dimension</code> with the
* specified width and height.
* Create a new Dimension with width and height identical to that of the
* specified dimension.
*
* @param width The width of this object.
* @param height The height of this object.
* @param d the Dimension to copy
* @throws NullPointerException if d is null
*/
public Dimension (int width, int height)
public Dimension(Dimension d)
{
this.width = width;
this.height = height;
width = d.width;
height = d.height;
}
/**
* Create a new Dimension with the specified width and height.
*
* @param w the width of this object
* @param h the height of this object
*/
public Dimension(int w, int h)
{
width = w;
height = h;
}
/**
* Gets the width of this dimension.
*
* @return the width, as a double
*/
public double getWidth()
{
return width;
}
/**
* Gets the height of this dimension.
*
* @return the height, as a double
*/
public double getHeight()
{
return height;
}
/**
* Sets the size of this dimension. The values are rounded to int.
*
* @param w the new width
* @param h the new height
* @since 1.2
*/
public void setSize(double w, double h)
{
width = (int) w;
height = (int) h;
}
/**
* Returns the size of this dimension. A pretty useless method, as this is
* already a dimension.
*
* @return a copy of this dimension
* @see #setSize(Dimension)
* @since 1.1
*/
public Dimension getSize()
{
return new Dimension(width, height);
}
/**
* Sets the width and height of this object to match that of the
* specified object.
*
* @param d the Dimension to get the new width and height from
* @throws NullPointerException if d is null
* @see #getSize()
* @since 1.1
*/
public void setSize(Dimension d)
{
width = d.width;
height = d.height;
}
/**
* Sets the width and height of this object to the specified values.
*
* @param w the new width value
* @param h the new height value
*/
public void setSize(int w, int h)
{
width = w;
height = h;
}
/**
* Tests this object for equality against the specified object. This will
* be true if and only if the specified object:
* <p>
* <ul>
* <li>Is not <code>null</code>.
* <li>Is an instance of <code>Dimension</code>.
* <li>Has width and height values identical to this object.
* </ul>
* be true if and only if the specified object is an instance of
* Dimension2D, and has the same width and height.
*
* @param obj The object to test against.
*
* @return <code>true</code> if the specified object is equal to this
* object, <code>false</code> otherwise.
* @param obj the object to test against
* @return true if the object is equal to this
*/
public boolean equals (Object obj)
public boolean equals(Object obj)
{
if (! (obj instanceof Dimension))
return false;
@ -118,55 +208,27 @@ public class Dimension extends java.awt.geom.Dimension2D
}
/**
* Returns the size of this object. Not very useful.
* Return the hashcode for this object. It is not documented, but appears
* to be <code>((width + height) * (width + height + 1) / 2) + width</code>.
*
* @return This object.
* @return the hashcode
*/
public Dimension getSize () { return new Dimension(this); }
/**
* Sets the width and height of this object to match that of the
* specified object.
*
* @param dim The <code>Dimension</code> object to get the new width and
* height from.
*/
public void setSize (Dimension dim)
public int hashCode()
{
this.width = dim.width;
this.height = dim.height;
// Reverse engineering this was fun!
return (width + height) * (width + height + 1) / 2 + width;
}
/**
* Sets the width and height of this object to the specified values.
* Returns a string representation of this object. The format is:
* <code>getClass().getName() + "[width=" + width + ",height=" + height
* + ']'</code>.
*
* @param width The new width value.
* @param height The new height value.
* @return a string representation of this object
*/
public void setSize (int width, int height)
public String toString()
{
this.width = width;
this.height = height;
return getClass().getName()
+ "[width=" + width + ",height=" + height + ']';
}
/**
* Returns a string representation of this object.
*
* @return A string representation of this object.
*/
public String toString ()
{
return "Dimension[w:"+width+",h:"+height+']';
}
/* Note: There is no Dimension.hashCode. */
public double getWidth() { return width; }
public double getHeight() { return height; }
public void setSize (double width, double height)
{
this.width = (int) width;
this.height = (int) height;
}
}
} // class Dimension