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Bug
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Resolution: Fixed
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P3
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1.3.0
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kestrel
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sparc
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solaris_2.6
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Not verified
Name: aaC67449 Date: 10/04/99
AccessibleAbstractButton getCharacterBounds() and getIndexAtPoint() methods throw
NullPointerException, but should simply return null and -1.
See javadoc:"
public int getIndexAtPoint(Point p)
Given a point in local coordinates, return the zero-based index of the character
under that Point. If the point is invalid, this method returns -1.
Specified by:
getIndexAtPoint in interface AccessibleText
Parameters:
p - the Point in local coordinates
Returns:
the zero-based index of the character under Point p; if Point is invalid returns
-1.
ublic Rectangle getCharacterBounds(int i)
Determine the bounding box of the character at the given index into the string. The
bounds are returned in local coordinates. If the index is invalid an empty rectangle
is returned.
Specified by:
getCharacterBounds in interface AccessibleText
Parameters:
i - the index into the String
Returns:
the screen coordinates of the character's the bounding box, if index is invalid
returns an empty rectangle.
"
See example:
------------------------- example ----------------
import javax.swing.JButton;
import javax.accessibility.AccessibleText;
public class Test{
public static void main(String argv[]) {
JButton o = new JButton("<html><body><p>Test</p></body></html>");
AccessibleText c = o.getAccessibleContext().getAccessibleText();
c.getIndexAtPoint(new java.awt.Point(0,0));
System.out.println("Ok");
}
}
-------------------- output -------------------
Exception in thread "main" java.lang.NullPointerException
at javax.swing.AbstractButton$AccessibleAbstractButton.getTextRectangle(AbstractButton.java:2056)
at javax.swing.AbstractButton$AccessibleAbstractButton.getIndexAtPoint(AbstractButton.java:1725)
at Test.main(Test.java:9)
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