src/share/classes/javax/swing/plaf/basic/BasicListUI.java

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2817 
2818         /* The focusGained() focusLost() methods run when the JList
2819          * focus changes.
2820          */
2821 
2822         public void focusGained(FocusEvent e) {
2823             repaintCellFocus();
2824         }
2825 
2826         public void focusLost(FocusEvent e) {
2827             repaintCellFocus();
2828         }
2829     }
2830 
2831     private static int adjustIndex(int index, JList list) {
2832         return index < list.getModel().getSize() ? index : -1;
2833     }
2834 
2835     private static final TransferHandler defaultTransferHandler = new ListTransferHandler();
2836 

2837     static class ListTransferHandler extends TransferHandler implements UIResource {
2838 
2839         /**
2840          * Create a Transferable to use as the source for a data transfer.
2841          *
2842          * @param c  The component holding the data to be transfered.  This
2843          *  argument is provided to enable sharing of TransferHandlers by
2844          *  multiple components.
2845          * @return  The representation of the data to be transfered.
2846          *
2847          */
2848         protected Transferable createTransferable(JComponent c) {
2849             if (c instanceof JList) {
2850                 JList list = (JList) c;
2851                 Object[] values = list.getSelectedValues();
2852 
2853                 if (values == null || values.length == 0) {
2854                     return null;
2855                 }
2856 




2817 
2818         /* The focusGained() focusLost() methods run when the JList
2819          * focus changes.
2820          */
2821 
2822         public void focusGained(FocusEvent e) {
2823             repaintCellFocus();
2824         }
2825 
2826         public void focusLost(FocusEvent e) {
2827             repaintCellFocus();
2828         }
2829     }
2830 
2831     private static int adjustIndex(int index, JList list) {
2832         return index < list.getModel().getSize() ? index : -1;
2833     }
2834 
2835     private static final TransferHandler defaultTransferHandler = new ListTransferHandler();
2836 
2837     @SuppressWarnings("serial") // Superclass is a JDK-implementation class
2838     static class ListTransferHandler extends TransferHandler implements UIResource {
2839 
2840         /**
2841          * Create a Transferable to use as the source for a data transfer.
2842          *
2843          * @param c  The component holding the data to be transfered.  This
2844          *  argument is provided to enable sharing of TransferHandlers by
2845          *  multiple components.
2846          * @return  The representation of the data to be transfered.
2847          *
2848          */
2849         protected Transferable createTransferable(JComponent c) {
2850             if (c instanceof JList) {
2851                 JList list = (JList) c;
2852                 Object[] values = list.getSelectedValues();
2853 
2854                 if (values == null || values.length == 0) {
2855                     return null;
2856                 }
2857