Example usage for javax.swing JComboBox getModel

Introduction

In this page you can find the example usage for javax.swing JComboBox getModel.

Prototype

public ComboBoxModel<E> getModel() 

Source Link

Document

Returns the data model currently used by the JComboBox.

Usage

From source file:Main.java

public static void main(String[] args) {
    Object[] items = new Object[] { "Dog", "Cat", "Other" };
    DefaultComboBoxModel dcbm = new DefaultComboBoxModel(items);
    JComboBox comboBox = new JComboBox(dcbm);
    comboBox.setPreferredSize(new Dimension(200, 20));
    comboBox.addItemListener(e -> {//from w w w . j a  v a  2s .co m
        Object selectedItem = comboBox.getSelectedItem();
        boolean editable = selectedItem instanceof String && ((String) selectedItem).equals("Other");
        comboBox.setEditable(editable);
    });
    comboBox.getEditor().addActionListener(e -> {
        Object newItem = comboBox.getEditor().getItem();
        DefaultComboBoxModel d = (DefaultComboBoxModel) comboBox.getModel();
        d.addElement(newItem);
        d.setSelectedItem(newItem);

    });

    JPanel content = new JPanel(new FlowLayout());
    content.add(new JLabel("Test:"));
    content.add(comboBox);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(content);
    frame.pack();
    frame.setVisible(true);
}

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From source file:Main.java

/**
 * @param comboBox/*from  w  ww  . j  a  v a2 s.c o m*/
 * @param value
 * @return if the comboBox contains the specified value
 */
public static boolean containsValue(JComboBox comboBox, String value) {
    ComboBoxModel model = comboBox.getModel();
    int size = model.getSize();
    for (int i = 0; i < size; i++) {
        Object element = model.getElementAt(i);
        if (element.equals(value)) {
            return true;
        }
    }
    return false;
}

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From source file:Main.java

/**
 * Setzt die Daten des Iterators in das ComboBoxModel.
 * /*from w ww  . java 2  s . co  m*/
 * @param comboBox {@link JComboBox}
 * @param iterator {@link Iterator}
 */
@SuppressWarnings("unchecked")
public static void fillComboBox(final JComboBox<?> comboBox, final Iterator<?> iterator) {
    DefaultComboBoxModel<Object> comboBoxModel = (DefaultComboBoxModel<Object>) comboBox.getModel();
    comboBoxModel.removeAllElements();

    while (iterator.hasNext()) {
        comboBoxModel.addElement(iterator.next());
    }
}

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From source file:Main.java

/**
 * Replace the options in a combo box with a new set.
 * nulls are skipped.  Selected value is preserved.
 *
 * @param combob GUI component to update
 * @param values list of values to put into component, or null to erase
 *//*ww  w.j  a  v  a 2  s  . co m*/
public static void replaceContents(JComboBox combob, List<?> values) {
    Object cur = combob.getSelectedItem();
    DefaultComboBoxModel m = (DefaultComboBoxModel) combob.getModel();
    m.removeAllElements();
    if (values != null)
        for (Object v : values)
            if (v != null)
                m.addElement(v);
    combob.setSelectedItem(cur);
    combob.setEnabled(true);
}

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From source file:Main.java

/**
 * Replace the options in a combo box with a new set.
 * nulls are skipped.  Selected value is preserved.
 *
 * @param combob GUI component to update
 * @param values list of values to put into component, or null to erase
 *//*from   w w w .j a va  2  s  .com*/
public static void replaceContents(JComboBox combob, Object[] values) {
    Object cur = combob.getSelectedItem();
    DefaultComboBoxModel m = (DefaultComboBoxModel) combob.getModel();
    m.removeAllElements();
    if (values != null)
        for (Object v : values)
            if (v != null)
                m.addElement(v);
    combob.setSelectedItem(cur);
    combob.setEnabled(true);
}

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From source file:Main.java

/**
 * Replace the options in a combo box with a new set.
 * nulls are skipped.  Selected value is preserved.
 *
 * @param combob GUI component to update
 * @param values list of values to put into component, or null to erase
 *//*from ww  w. j a  v a 2s  . c  o m*/
public static void replaceContents(JComboBox combob, Vector<?> values) {
    Object cur = combob.getSelectedItem();
    DefaultComboBoxModel m = (DefaultComboBoxModel) combob.getModel();
    m.removeAllElements();
    if (values != null)
        for (Object v : values)
            if (v != null)
                m.addElement(v);
    combob.setSelectedItem(cur);
    combob.setEnabled(true);
}

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From source file:jshm.gui.GuiUtil.java

public static void createSongCombo(JComboBox cb, List<? extends Song> songs) {
    cb.setRenderer(SONG_COMBO_RENDERER);
    DefaultComboBoxModel model = (DefaultComboBoxModel) cb.getModel();
    model.removeAllElements();/*from   w  ww .ja  v  a 2 s .com*/

    model.addElement(SELECT_A_SONG);
    for (Song s : songs)
        model.addElement(s);

    AutoCompleteDecorator.decorate(cb, SONG_COMBO_CONVERTER);
}

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From source file:Main.java

public Main() {
    JComboBox jc = new JComboBox();
    jc.addItem("France");
    jc.addItem("Germany");
    jc.addItem("Italy");
    jc.addItem("Japan");
    jc.addItemListener(this);
    add(jc);// w  w  w.j av  a 2  s  .  c  o m
    ComboBoxModel model = jc.getModel();
}

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From source file:Main.java

public void keyPressed(KeyEvent evt) {
    JComboBox cb = (JComboBox) evt.getSource();

    int curIx = cb.getSelectedIndex();

    char ch = evt.getKeyChar();

    JComboBox.KeySelectionManager ksm = cb.getKeySelectionManager();
    if (ksm != null) {
        int ix = ksm.selectionForKey(ch, cb.getModel());
        boolean noMatch = ix < 0;
        boolean uniqueItem = ix == curIx;

        if (noMatch || !uniqueItem) {
            cb.showPopup();// w ww . j a  v  a2s.c  om
        }
    }
}

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From source file:Main.java

public void actionPerformed(ActionEvent e) {
    JComboBox jcb = (JComboBox) e.getSource();
    System.out.println("down action");
    ComboBoxUI ui = jcb.getUI();//from w w w.j  ava  2 s.  c om

    if (ui.isPopupVisible(jcb)) {
        int i = jcb.getSelectedIndex();
        if (i < jcb.getModel().getSize() - 1) {
            jcb.setSelectedIndex(i + 1);
            jcb.repaint();
        }
    } else {
        int nItems = jcb.getItemCount();

        ComboBoxEditor cbe = jcb.getEditor();

        String st; // Search text

        st = ((String) cbe.getItem()).toUpperCase();

        for (int i = 0; i < nItems; i++) {
            String item = ((String) jcb.getItemAt(i)).toUpperCase();

            if (item.startsWith(st)) {
                jcb.setSelectedIndex(i);
                break;
            }
        }

        ui.setPopupVisible(jcb, true);
    }
}

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