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- public ProductApplication()
- {
- //WEST PANEL
- JPanel west = new JPanel(new BorderLayout());
- west.setBorder(BorderFactory.createMatteBorder(
- 5, 5, 5, 5, Color.blue));
- west.add(new JTextField("Products"),
- BorderLayout.NORTH);
- pList = new JList(product);
- pList.setFixedCellHeight(20);
- pList.setFixedCellWidth(100);
- west.add(pList, BorderLayout.CENTER);
- scrollpane = new JScrollPane(pList);
- west.add(scrollpane, BorderLayout.WEST);
- add(west, BorderLayout.WEST);
- JScrollPane jScrollPane = new JScrollPane(list);
- jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
- import java.awt.Component;
- import javax.swing.DefaultListCellRenderer;
- import javax.swing.DefaultListModel;
- import javax.swing.JComponent;
- import javax.swing.JFrame;
- import javax.swing.JList;
- import javax.swing.JScrollPane;
- import javax.swing.ListCellRenderer;
- import javax.swing.SwingUtilities;
- public class TestFrame extends JFrame {
- public TestFrame(){
- SwingUtilities.invokeLater(new Runnable() {
- @Override
- public void run() {
- init();
- setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
- pack();
- setVisible(true);
- }
- });
- }
- private void init() {
- DefaultListModel<String> model;
- JList<String> l = new JList<>(model = new DefaultListModel<>());
- l.setFixedCellHeight(20);
- l.setFixedCellWidth(100);
- model.addElement("");
- for(int i=0;i<5;i++){
- model.addElement(i+"");
- }
- model.addElement("");
- model.addElement("5");
- l.setCellRenderer(getRenderer());
- JScrollPane jScrollPane = new JScrollPane(l);
- jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
- add(jScrollPane);
- }
- private ListCellRenderer<? super String> getRenderer() {
- return new DefaultListCellRenderer(){
- @Override
- public Component getListCellRendererComponent(JList<?> list,Object value, int index, boolean isSelected,boolean cellHasFocus) {
- Component listCellRendererComponent = super.getListCellRendererComponent(list, value, index, isSelected,cellHasFocus);
- if((value == null || value.toString().isEmpty()) && isSelected){
- listCellRendererComponent.setBackground(list.getBackground());
- ((JComponent)listCellRendererComponent).setBorder(null);
- }
- return listCellRendererComponent;
- }
- };
- }
- public static void main(String... s){
- new TestFrame();
- }
- }
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