0N/A/*
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
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0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A */
0N/A
0N/Apackage javax.swing.plaf;
0N/A
0N/Aimport javax.swing.JList;
0N/Aimport java.awt.Point;
0N/Aimport java.awt.Rectangle;
0N/A
0N/A
0N/A/**
0N/A * The {@code JList} pluggable look and feel delegate.
0N/A *
0N/A * @author Hans Muller
0N/A */
0N/A
0N/Apublic abstract class ListUI extends ComponentUI
0N/A{
0N/A /**
0N/A * Returns the cell index in the specified {@code JList} closest to the
0N/A * given location in the list's coordinate system. To determine if the
0N/A * cell actually contains the specified location, compare the point against
0N/A * the cell's bounds, as provided by {@code getCellBounds}.
0N/A * This method returns {@code -1} if the list's model is empty.
0N/A *
0N/A * @param list the list
0N/A * @param location the coordinates of the point
0N/A * @return the cell index closest to the given location, or {@code -1}
0N/A * @throws NullPointerException if {@code location} is null
0N/A */
0N/A public abstract int locationToIndex(JList list, Point location);
0N/A
0N/A
0N/A /**
0N/A * Returns the origin in the given {@code JList}, of the specified item,
0N/A * in the list's coordinate system.
0N/A * Returns {@code null} if the index isn't valid.
0N/A *
0N/A * @param list the list
0N/A * @param index the cell index
0N/A * @return the origin of the cell, or {@code null}
0N/A */
0N/A public abstract Point indexToLocation(JList list, int index);
0N/A
0N/A
0N/A /**
0N/A * Returns the bounding rectangle, in the given list's coordinate system,
0N/A * for the range of cells specified by the two indices.
0N/A * The indices can be supplied in any order.
0N/A * <p>
0N/A * If the smaller index is outside the list's range of cells, this method
0N/A * returns {@code null}. If the smaller index is valid, but the larger
0N/A * index is outside the list's range, the bounds of just the first index
0N/A * is returned. Otherwise, the bounds of the valid range is returned.
0N/A *
0N/A * @param list the list
0N/A * @param index1 the first index in the range
0N/A * @param index2 the second index in the range
0N/A * @return the bounding rectangle for the range of cells, or {@code null}
0N/A */
0N/A public abstract Rectangle getCellBounds(JList list, int index1, int index2);
0N/A}