/[classpath]/classpath/java/awt/geom/Dimension2D.java
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revision 1.2 by mark, Tue Jan 22 22:26:59 2002 UTC revision 1.3 by ericb, Thu Mar 21 07:58:00 2002 UTC
# Line 1  Line 1 
1  /* Copyright (C) 1999, 2000, 2002  Free Software Foundation  /* Dimension2D.java -- abstraction of a dimension
2       Copyright (C) 1999, 2000, 2002 Free Software Foundation
3    
4  This file is part of GNU Classpath.  This file is part of GNU Classpath.
5    
# Line 34  this exception to your version of the li Line 35  this exception to your version of the li
35  obligated to do so.  If you do not wish to do so, delete this  obligated to do so.  If you do not wish to do so, delete this
36  exception statement from your version. */  exception statement from your version. */
37    
38    
39  package java.awt.geom;  package java.awt.geom;
40    
41  /**  /**
42     * This stores a dimension in 2-dimensional space - a width (along the x-axis)
43     * and height (along the y-axis). The storage is left to subclasses.
44     *
45   * @author Per Bothner <bothner@cygnus.com>   * @author Per Bothner <bothner@cygnus.com>
46   * @date February, 1999.   * @author Eric Blake <ebb9@email.byu.edu>
47   */   * @since 1.2
48     * @status updated to 1.4
 /* Written using online API docs for JDK 1.2 beta from http://www.javasoft.com.  
  * Status:  Believed complete and correct.  
49   */   */
   
50  public abstract class Dimension2D implements Cloneable  public abstract class Dimension2D implements Cloneable
51  {  {
52      /**
53       * The default constructor.
54       */
55      protected Dimension2D()
56      {
57      }
58    
59      /**
60       * Get the width of this dimension. A negative result, while legal, is
61       * undefined in meaning.
62       *
63       * @return the width
64       */
65    public abstract double getWidth();    public abstract double getWidth();
   public abstract double getHeight();  
66    
67    public abstract void setSize (double width, double height);    /**
68       * Get the height of this dimension. A negative result, while legal, is
69       * undefined in meaning.
70       *
71       * @return the height
72       */
73      public abstract double getHeight();
74    
75    public void setSize (Dimension2D dim)    /**
76       * Set the size of this dimension to the requested values. Loss of precision
77       * may occur.
78       *
79       * @param w the new width
80       * @param h the new height
81       */
82      public abstract void setSize(double w, double h);
83    
84      /**
85       * Set the size of this dimension to the requested value. Loss of precision
86       * may occur.
87       *
88       * @param d the dimension containing the new values
89       * @throws NullPointerException if d is null
90       */
91      public void setSize(Dimension2D d)
92    {    {
93      setSize(dim.getWidth(), dim.getHeight());      setSize(d.getWidth(), d.getHeight());
94    }    }
95    
96    public Object clone ()    /**
97       * Create a new dimension of the same run-time type with the same contents
98       * as this one.
99       *
100       * @return the clone
101       */
102      public Object clone()
103    {    {
104      try      try
105      {        {
106        return super.clone ();          return super.clone();
107      }        }
108      catch (CloneNotSupportedException _) {return null;}      catch (CloneNotSupportedException e)
109    }        {
110            throw (Error) new InternalError().initCause(e); // Impossible
111    protected Dimension2D ()        }
   {  
112    }    }
113  }  } // class Dimension2D

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