| java.lang.Object | ||
| ↳ | javax.swing.plaf.ComponentUI | |
| ↳ | javax.swing.plaf.ListUI | |
 Known Direct Subclasses
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Class Overview
The JList pluggable look and feel delegate.
Summary
| Public Constructors | |||||||||||
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| Public Methods | |||||||||||
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Returns the bounding rectangle, in the given list's coordinate system,
for the range of cells specified by the two indices.
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Returns the origin in the given
JList, of the specified item,
in the list's coordinate system. | |||||||||||
Returns the cell index in the specified
JList closest to the
given location in the list's coordinate system. | |||||||||||
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[Expand]
Inherited Methods | |||||||||||
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From class
javax.swing.plaf.ComponentUI
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From class
java.lang.Object
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Public Constructors
public ListUI ()
Public Methods
public abstract Rectangle getCellBounds (JList list, int index1, int index2)
Returns the bounding rectangle, in the given list's coordinate system, for the range of cells specified by the two indices. The indices can be supplied in any order.
If the smaller index is outside the list's range of cells, this method
returns null. If the smaller index is valid, but the larger
index is outside the list's range, the bounds of just the first index
is returned. Otherwise, the bounds of the valid range is returned.
Parameters
| list | the list |
|---|---|
| index1 | the first index in the range |
| index2 | the second index in the range |
Returns
- the bounding rectangle for the range of cells, or
null
public abstract Point indexToLocation (JList list, int index)
Returns the origin in the given JList, of the specified item,
in the list's coordinate system.
Returns null if the index isn't valid.
Parameters
| list | the list |
|---|---|
| index | the cell index |
Returns
- the origin of the cell, or
null
public abstract int locationToIndex (JList list, Point location)
Returns the cell index in the specified JList closest to the
given location in the list's coordinate system. To determine if the
cell actually contains the specified location, compare the point against
the cell's bounds, as provided by getCellBounds.
This method returns -1 if the list's model is empty.
Parameters
| list | the list |
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| location | the coordinates of the point |
Returns
- the cell index closest to the given location, or
-1
Throws
| NullPointerException | if location is null
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