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

        if (idx == 0) {
            beditmapper.setEnabled(false);
            bdelmapper.setEnabled(false);
            bduplicateMapper.setEnabled(false);
        }
        cbxmapper.setRenderer(new ListCellRenderer() {
            public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected,
                    boolean cellHasFocus) {
                String s = value.toString();
                if (s.length() > 18) {
                    s = s.substring(0, 15) + "...";

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Examples of javax.swing.ListCellRenderer

    public PartitionPanel() {
        initComponents();
        setMinimumSize(new Dimension(50, 90));


        //List renderer
        final ListCellRenderer renderer = new DefaultListCellRenderer() {


            @Override
            public Component getListCellRendererComponent(final JList list, final Object value, final int index, final boolean isSelected, final boolean cellHasFocus) {


                final JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

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Examples of javax.swing.ListCellRenderer

  {
    final ComboBoxModel    model      = getComboBoxModel();
    final ComboBoxModel    emptyCBM    = new DefaultComboBoxModel();
    final MultiStateButton  button      = b;
    final JComboBox      ggBlend      = new JComboBox(); // ( pcbm );
    final ListCellRenderer  blendRenderer  = getComboBoxRenderer();
    
    ggBlend.setEditable( true );
    ggBlend.setEditor( new ComboBoxEditor() {
      public Component getEditorComponent() { return button; }

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Examples of javax.swing.ListCellRenderer

  }


  @RunsInCurrentThread
  private @Nullable Component cellRendererComponent(@Nonnull JComboBox comboBox, int index) {
    Object item = comboBox.getItemAt(index);
    ListCellRenderer renderer = comboBox.getRenderer();
    return renderer.getListCellRendererComponent(REFERENCE_JLIST, item, index, true, true);
  }

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Examples of javax.swing.ListCellRenderer

            }
        }


        private Dimension getPrototypeSize(Object prototypeValue) {
            // get the renderer responsible for drawing the prototype value
            ListCellRenderer renderer = comboBox.getRenderer();
            if (renderer == null)
                renderer = new DefaultListCellRenderer();


            // get the component from the renderer
            final Component comp = renderer.getListCellRendererComponent(popup.getList(), prototypeValue, -1, false, false);


            // determine the preferred size of the component
            comp.setFont(comboBox.getFont());
            return comp.getPreferredSize();
        }

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Examples of javax.swing.ListCellRenderer

    }
    final Rectangle bds = list.getCellBounds(row, row);
    //GetCellBounds returns a width that is the
    //full component width;  we want only what
    //the renderer really needs.
    final ListCellRenderer ren = list.getCellRenderer();
    final Dimension rendererSize = ren.getListCellRendererComponent(list, list.getModel().getElementAt(row), row, false, false).getPreferredSize();


    bds.width = rendererSize.width;
    if (!bds.contains(p)) {
      hide();
      return;

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Examples of javax.swing.ListCellRenderer

    UIManager.put("Label.font", new Font("Dialog", Font.PLAIN, 21));
    UIManager.put("Label.foreground", Color.green);
    UIManager.put("Label.background", Color.yellow);
    
    MyBasicComboBoxUI ui = new MyBasicComboBoxUI();
    ListCellRenderer renderer = ui.createRenderer();
    Component c = (Component) renderer;
    
    harness.check(c.getFont(), new Font("Dialog", Font.PLAIN, 21));
    harness.check(c.getForeground(), Color.green);
    harness.check(c.getBackground(), Color.yellow);
    
    // confirm that the method creates a new instance every time
    ListCellRenderer renderer2 = ui.createRenderer();
    harness.check(renderer != renderer2);
    
    JComboBox cb = new JComboBox();
    ListCellRenderer renderer3 = cb.getRenderer();
    Component c3 = (Component) renderer3;
    harness.check(c3.getFont(), new Font("Dialog", Font.PLAIN, 21));
    harness.check(c3.getForeground(), Color.green);
    harness.check(c3.getBackground(), Color.yellow);
    
    // changing the font on the combo box doesn't update the renderer font
    cb.setFont(new Font("Dialog", Font.BOLD, 10));
    harness.check(c3.getFont(), new Font("Dialog", Font.PLAIN, 21));
    ListCellRenderer renderer4 = cb.getRenderer();
    harness.check(renderer3 == renderer4);
    
    // restore a sane look and feel
    try
    {

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Examples of javax.swing.ListCellRenderer

    }


    // PENDING JW: this isn't aware of sorting/filtering - fix!
    private static boolean pointIsInActualBounds(JList list, int index,
            Point point) {
        ListCellRenderer renderer = list.getCellRenderer();
        ListModel model = list.getModel();
        Object element = model.getElementAt(index);
        Component comp = renderer.getListCellRendererComponent(list, element,
                index, false, false);


        Dimension prefSize = comp.getPreferredSize();
        Rectangle cellBounds = list.getCellBounds(index, index);
        if (!(comp.getComponentOrientation().isLeftToRight())) {

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Examples of javax.swing.ListCellRenderer

   */
  public Component getListCellRendererComponent(JList list, Object value,
            int index, boolean selected, boolean hasFocus) {
    Completion c = (Completion)value;
    CompletionProvider p = c.getProvider();
    ListCellRenderer r = p.getListCellRenderer();
    if (r!=null) {
      return r.getListCellRendererComponent(list, value, index, selected,
                          hasFocus);
    }
    if (fallback==null) {
      return super.getListCellRendererComponent(list, value, index,
                        selected, hasFocus);

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Examples of javax.swing.ListCellRenderer

    String value = mData[2].toString();
    if (component instanceof JCheckBox || component instanceof JRadioButton) {
      new ComponentSelector().executeCommand(mData[0].toString(),Integer.parseInt(mData[1].toString()), Boolean.parseBoolean(value));
    } else if (component instanceof JComboBox) {
      JComboBox combo = (JComboBox) component;
      ListCellRenderer renderer = combo.getRenderer();
      for (int i = 0; i < combo.getItemCount(); i++) { 
        String itemValue = getItemText(combo.getModel().getElementAt(i), renderer);
        System.out.println("compare combo elmt (" + itemValue + ") with '" + value + "'");
        // Use a startsWith instead of equals() as toString() can return more than the value
        if (itemValue.equals(value)) {
          mValueToSelect = i;
        }
      }
    } else if (component instanceof JList) {
      JList list = (JList) component;
      ListCellRenderer renderer = list.getCellRenderer();
      for (int i = 0; i < list.getModel().getSize(); i++) {
        String itemValue = getItemText(list.getModel().getElementAt(i), renderer);
        System.out.println("compare list elmt (" + itemValue + ") with '" + value + "'");
        if (itemValue.equals(value)) {
          mValueToSelect = i;

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