Name: akC57697 Date: 11/21/97



The sun.awt.motif.MToolkit.getBestCursorSize(int,int) does not work in accordance
with spec when use Integer.MIN_VALUE or 0 as parameters.


The comments for Toolkit.getBestCursorSize(int,int) says:
" /**
     * Returns the supported cursor dimension which is closest to the desired
                                             ^^^^^^^^^^^^^^^^^^^^^^^^^
     * sizes. Systems which only support a single cursor size will return that
                                                              ^^^^^^^^^^^^^^^^
     * size regardless of the desired sizes. Systems which don't support custom
       ^^^^^ ^^^^^^^^^^^^^^^^^^^
     * cursors will return a dimension of 0, 0. <p>
                                   ^^^^^^^^^^^^
     * Note: if an image is used whose dimensions don't match a supported size
     * (as returned by this method), the Toolkit implementation will attempt to
     * resize the image to a supported size.
     * Since converting low-resolution images is difficult,
     * no guarantees are made as to the quality of a cursor image which isn't a
     * supported size. It is therefore recommended that this method
     * be called and an appropriate image used so no image conversion is made.
     *
     * @param desiredWidth the preferred cursor width the component would like
     * to use.
     * @param desiredHeight the preferred cursor height the component would like
     * to use.
     * @return the closest matching supported cursor size, or a dimension of 0,0 if
     * the Toolkit implementation doesn't support custom cursors.
     * @since JDK1.2
     */
"

Parameters Result dimension
--------------------------------------+---------------------
Integer.MAX_VALUE,Integer.MAX_VALUE 65535,65535
0,0 0,0
-1,-1 65535,65535
-1000,-1000 64536,64536
Integer.MIN_VALUE,Integer.MIN_VALUE 0,0

Works under Windows95.

-------------------Example-----------------------------------
import java.awt.*;

public class CCursor {
    public static void main(String s[]) {

 Toolkit tk = Toolkit.getDefaultToolkit();
 
 if (!(tk.getBestCursorSize(16,16).getWidth()<1)) { // Use normal
  System.out.println("The system supports custom cursors.");
 }
                                                             // Use other..
 if (tk.getBestCursorSize(Integer.MIN_VALUE,Integer.MIN_VALUE).getWidth()<1) {
  System.out.println("The system does not support custom cursors.");
 }
         
  System.exit(0);
      
   }
}
-------------------Output------------------------------------
(novo35 61): javac CCursor.java
(novo35 62): java CCursor
The system supports custom cursors.
The system does not support custom cursors.
(novo35 63): java -fullversion
java full version "JDK-1.2beta2-V"

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