Examples of ListCellRenderer

com.sun.dtv.lwuit.list.ListCellRenderer
A "rubber stamp" tool that allows us to extract a component (often the same component instance for all invocations) that is initialized to the value of the current item extracted from the model, this component is drawn on the list and discarded. No state of the component is kept and the component is essentially discarded.
An instance of a renderer can be developed as such:
```
 public class MyYesNoRenderer extends Label implements ListCellRenderer { public Component getListCellRendererComponent(List list, Object value, int index, boolean isSelected) { if( ((Boolean)value).booleanValue() ) { setText("Yes"); } else { setText("No"); } return this; } public Component getListFocusComponent(List list) { Label label = new label(""); label.getStyle().setBgTransparency(100);  return label; } } 
```
It is recommended that the component whose values are manipulated would not support features such as repaint(). This is accomplished by overriding repaint in the subclass with an empty implementation. This is advised for performance reasons, otherwise every change made to the component might trigger a repaint that wouldn't do anything but still cost in terms of processing. @author Chen Fishbein
javax.swing.ListCellRenderer
k if this cell represents the current DnD drop location JList.DropLocation dropLocation = list.getDropLocation(); if (dropLocation != null && !dropLocation.isInsert() && dropLocation.getIndex() == index) { background = Color.BLUE; foreground = Color.WHITE; // check if this cell is selected } else if (isSelected) { background = Color.RED; foreground = Color.WHITE; // unselected, and not the DnD drop location } else { background = Color.WHITE; foreground = Color.BLACK; }; setBackground(background); setForeground(foreground); return this; } } } @param < E> the type of values this renderer can be used for @see JList @see DefaultListCellRenderer @author Hans Muller
nextapp.echo2.app.list.ListCellRenderer
Renders an item in a list.
unbbayes.gui.mebn.auxiliary.ListCellRenderer

Examples of javax.swing.ListCellRenderer


    JFrame frame = new JFrame("Complex Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


    JList jlist = new JList(elements);
    ListCellRenderer renderer = new ComplexCellRenderer();
    jlist.setCellRenderer(renderer);
    JScrollPane scrollPane = new JScrollPane(jlist);
    frame.add(scrollPane, BorderLayout.CENTER);


    frame.setSize(300, 200);

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Examples of javax.swing.ListCellRenderer

        super();
        // TF:20/10/2009:DET-119:Do not have the menu centre aligned (the default) but left aligned.
        this.setAlignmentX(0.0f);
        armedIndex = 0;
        isMenuListSelected = false;
        setCellRenderer(new ListCellRenderer(){
            public Component getListCellRendererComponent(
                    JList list,
                    Object value,
                    int index,
                    boolean isSelected,

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Examples of javax.swing.ListCellRenderer

          else if (anObject instanceof String) {
            color = Color.CYAN;
          }
        }
      });
      this.setRenderer(new ListCellRenderer() {
        public Component getListCellRendererComponent(JList list,
            Object value, int index, boolean isSelected,
            boolean cellHasFocus) {
          
          Component result;

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Examples of javax.swing.ListCellRenderer


    /**
     * Paints the currently selected item.
     */
    public void paintCurrentValue(Graphics g,Rectangle bounds,boolean hasFocus) {
        ListCellRenderer renderer = comboBox.getRenderer();
        Component c;


        if ( hasFocus && !isPopupVisible(comboBox) ) {
            c = renderer.getListCellRendererComponent( listBox,
                                                       comboBox.getSelectedItem(),
                                                       -1,
                                                       true,
                                                       false );
        }
        else {
            c = renderer.getListCellRendererComponent( listBox,
                                                       comboBox.getSelectedItem(),
                                                       -1,
                                                       false,
                                                       false );
            c.setBackground(UIManager.getColor("ComboBox.background"));

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Examples of javax.swing.ListCellRenderer

          else if (anObject instanceof String) {
            color = Color.CYAN;
          }
        }
      });
      this.setRenderer(new ListCellRenderer() {
        public Component getListCellRendererComponent(JList list,
            Object value, int index, boolean isSelected,
            boolean cellHasFocus) {
          
          Component result;

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Examples of javax.swing.ListCellRenderer

        super();
        // TF:20/10/2009:DET-119:Do not have the menu centre aligned (the default) but left aligned.
        this.setAlignmentX(0.0f);
        armedIndex = 0;
        isMenuListSelected = false;
        setCellRenderer(new ListCellRenderer(){
            public Component getListCellRendererComponent(
                    JList list,
                    Object value,
                    int index,
                    boolean isSelected,

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Examples of javax.swing.ListCellRenderer

            list.revalidate();
            list.repaint();
        }
        maybeUpdateLayoutState();


        ListCellRenderer renderer = list.getCellRenderer();
        ListModel dataModel = list.getModel();
        ListSelectionModel selModel = list.getSelectionModel();


        if (renderer == null || dataModel.getSize() == 0) {
            return;

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Examples of javax.swing.ListCellRenderer

            list.revalidate();
            list.repaint();
        }
        maybeUpdateLayoutState();


        ListCellRenderer renderer = list.getCellRenderer();
        ListModel dataModel = list.getModel();
        ListSelectionModel selModel = list.getSelectionModel();


        if (renderer == null || dataModel.getSize() == 0) {
            return;

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Examples of javax.swing.ListCellRenderer


    /**
     * Paints the currently selected item.
     */
    public void paintCurrentValue(Graphics g,Rectangle bounds,boolean hasFocus) {
        ListCellRenderer renderer = comboBox.getRenderer();
        Component c;


        if ( hasFocus && !isPopupVisible(comboBox) ) {
            c = renderer.getListCellRendererComponent( listBox,
                                                       comboBox.getSelectedItem(),
                                                       -1,
                                                       true,
                                                       false );
        }
        else {
            c = renderer.getListCellRendererComponent( listBox,
                                                       comboBox.getSelectedItem(),
                                                       -1,
                                                       false,
                                                       false );
            c.setBackground(UIManager.getColor("ComboBox.background"));

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Examples of javax.swing.ListCellRenderer

    hp.add(labelField, gbc);


    gbc.gridy++;
    typeBox.setModel(new DefaultComboBoxModel(new Vector<MediumType>(
        MediumTypeFacade.findAll())));
    ListCellRenderer lcr = new MediumTypeListRenderer();
    typeBox.setRenderer(lcr);
    gbc.fill = GridBagConstraints.NONE;
    hp.add(typeBox, gbc);


    commentField.setRows(Constants.TEXT_AREA_ROWS);

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