Example usage for javax.swing JButton addFocusListener

Introduction

In this page you can find the example usage for javax.swing JButton addFocusListener.

Prototype

public synchronized void addFocusListener(FocusListener l) 

Source Link

Document

Adds the specified focus listener to receive focus events from this component when this component gains input focus.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JButton component = new JButton("a");
    component.addFocusListener(new MyFocusListener());

    JFrame f = new JFrame();
    f.add(component);/*from www.  ja v a 2 s. c  om*/
    f.pack();
    f.setVisible(true);

}

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From source file:Main.java

public Main() {
    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(this);
    JLabel label = new JLabel("A Label");
    label.addFocusListener(this);
    add(label);//from   w  w  w.java  2  s  .  co m

    String comboPrefix = "Item #";
    final int numItems = 15;
    Vector vector = new Vector(numItems);
    for (int i = 0; i < numItems; i++) {
        vector.addElement(comboPrefix + i);
    }
    JComboBox comboBox = new JComboBox(vector);
    comboBox.addFocusListener(this);
    add(comboBox);

    JButton button = new JButton("A Button");
    button.addFocusListener(this);
    add(button);

    JList list = new JList(vector);
    list.setSelectedIndex(1);
    list.addFocusListener(this);
    JScrollPane listScrollPane = new JScrollPane(list);

    listScrollPane.getVerticalScrollBar().setFocusable(false);
    listScrollPane.getHorizontalScrollBar().setFocusable(false);
    add(listScrollPane);

    setPreferredSize(new Dimension(450, 450));
}

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From source file:Main.java

public Main() {
    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(this);
    JLabel label = new JLabel("A Label");
    label.addFocusListener(this);
    add(label);//from   w  ww .  j  av a 2s.  c  o m

    String comboPrefix = "ComboBox Item #";
    final int numItems = 15;
    Vector vector = new Vector(numItems);
    for (int i = 0; i < numItems; i++) {
        vector.addElement(comboPrefix + i);
    }
    JComboBox comboBox = new JComboBox(vector);
    comboBox.addFocusListener(this);
    add(comboBox);

    JButton button = new JButton("A Button");
    button.addFocusListener(this);
    add(button);

    String listPrefix = "List Item #";
    Vector listVector = new Vector(numItems);
    for (int i = 0; i < numItems; i++) {
        listVector.addElement(listPrefix + i);
    }
    JList list = new JList(listVector);
    list.setSelectedIndex(1);
    list.addFocusListener(this);
    JScrollPane listScrollPane = new JScrollPane(list);

    listScrollPane.getVerticalScrollBar().setFocusable(false);
    listScrollPane.getHorizontalScrollBar().setFocusable(false);
    add(listScrollPane);

    setPreferredSize(new Dimension(450, 450));
    setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}

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From source file:events.FocusEventDemo.java

public void addComponentsToPane(final Container pane) {
    GridBagLayout gridbag = new GridBagLayout();
    pane.setLayout(gridbag);// w  ww .  j a va  2 s.  com

    GridBagConstraints c = new GridBagConstraints();

    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 1.0; //Make column as wide as possible.
    JTextField textField = new JTextField("A TextField");
    textField.setMargin(new Insets(0, 2, 0, 2));
    textField.addFocusListener(this);
    gridbag.setConstraints(textField, c);
    add(textField);

    c.weightx = 0.1; //Widen every other column a bit, when possible.
    c.fill = GridBagConstraints.NONE;
    JLabel label = new JLabel("A Label");
    label.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
    label.addFocusListener(this);
    gridbag.setConstraints(label, c);
    add(label);

    String comboPrefix = "ComboBox Item #";
    final int numItems = 15;
    Vector<String> vector = new Vector<String>(numItems);
    for (int i = 0; i < numItems; i++) {
        vector.addElement(comboPrefix + i);
    }
    JComboBox comboBox = new JComboBox(vector);
    comboBox.addFocusListener(this);
    gridbag.setConstraints(comboBox, c);
    add(comboBox);

    c.gridwidth = GridBagConstraints.REMAINDER;
    JButton button = new JButton("A Button");
    button.addFocusListener(this);
    gridbag.setConstraints(button, c);
    add(button);

    c.weightx = 0.0;
    c.weighty = 0.1;
    c.fill = GridBagConstraints.BOTH;
    String listPrefix = "List Item #";
    Vector<String> listVector = new Vector<String>(numItems);
    for (int i = 0; i < numItems; i++) {
        listVector.addElement(listPrefix + i);
    }
    JList list = new JList(listVector);
    list.setSelectedIndex(1); //It's easier to see the focus change
    //if an item is selected.
    list.addFocusListener(this);
    JScrollPane listScrollPane = new JScrollPane(list);

    gridbag.setConstraints(listScrollPane, c);
    add(listScrollPane);

    c.weighty = 1.0; //Make this row as tall as possible.
    c.gridheight = GridBagConstraints.REMAINDER;
    //Set up the area that reports focus-gained and focus-lost events.
    display = new JTextArea();
    display.setEditable(false);
    //The setRequestFocusEnabled method prevents a
    //component from being clickable, but it can still
    //get the focus through the keyboard - this ensures
    //user accessibility.
    display.setRequestFocusEnabled(false);
    display.addFocusListener(this);
    JScrollPane displayScrollPane = new JScrollPane(display);

    gridbag.setConstraints(displayScrollPane, c);
    add(displayScrollPane);
    setPreferredSize(new Dimension(450, 450));
    ((JPanel) pane).setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}

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From source file:FocusEventDemo.java

public void addComponentsToPane(final Container pane) {
    GridBagLayout gridbag = new GridBagLayout();
    pane.setLayout(gridbag);/*w w w.j a  va  2s .  c o m*/

    GridBagConstraints c = new GridBagConstraints();

    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 1.0; // Make column as wide as possible.
    JTextField textField = new JTextField("A TextField");
    textField.setMargin(new Insets(0, 2, 0, 2));
    textField.addFocusListener(this);
    gridbag.setConstraints(textField, c);
    add(textField);

    c.weightx = 0.1; // Widen every other column a bit, when possible.
    c.fill = GridBagConstraints.NONE;
    JLabel label = new JLabel("A Label");
    label.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
    label.addFocusListener(this);
    gridbag.setConstraints(label, c);
    add(label);

    String comboPrefix = "ComboBox Item #";
    final int numItems = 15;
    Vector<String> vector = new Vector<String>(numItems);
    for (int i = 0; i < numItems; i++) {
        vector.addElement(comboPrefix + i);
    }
    JComboBox comboBox = new JComboBox(vector);
    comboBox.addFocusListener(this);
    gridbag.setConstraints(comboBox, c);
    add(comboBox);

    c.gridwidth = GridBagConstraints.REMAINDER;
    JButton button = new JButton("A Button");
    button.addFocusListener(this);
    gridbag.setConstraints(button, c);
    add(button);

    c.weightx = 0.0;
    c.weighty = 0.1;
    c.fill = GridBagConstraints.BOTH;
    String listPrefix = "List Item #";
    Vector<String> listVector = new Vector<String>(numItems);
    for (int i = 0; i < numItems; i++) {
        listVector.addElement(listPrefix + i);
    }
    JList list = new JList(listVector);
    list.setSelectedIndex(1); // It's easier to see the focus change
    // if an item is selected.
    list.addFocusListener(this);
    JScrollPane listScrollPane = new JScrollPane(list);

    gridbag.setConstraints(listScrollPane, c);
    add(listScrollPane);

    c.weighty = 1.0; // Make this row as tall as possible.
    c.gridheight = GridBagConstraints.REMAINDER;
    // Set up the area that reports focus-gained and focus-lost events.
    display = new JTextArea();
    display.setEditable(false);
    // The setRequestFocusEnabled method prevents a
    // component from being clickable, but it can still
    // get the focus through the keyboard - this ensures
    // user accessibility.
    display.setRequestFocusEnabled(false);
    display.addFocusListener(this);
    JScrollPane displayScrollPane = new JScrollPane(display);

    gridbag.setConstraints(displayScrollPane, c);
    add(displayScrollPane);
    setPreferredSize(new Dimension(450, 450));
    ((JPanel) pane).setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}

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From source file:FocusEventDemo.java

public FocusEventDemo() {
    super(new GridBagLayout());
    GridBagLayout gridbag = (GridBagLayout) getLayout();
    GridBagConstraints c = new GridBagConstraints();

    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 1.0; //Make column as wide as possible.
    JTextField textField = new JTextField("A TextField");
    textField.setMargin(new Insets(0, 2, 0, 2));
    textField.addFocusListener(this);
    gridbag.setConstraints(textField, c);
    add(textField);//from w  w w . j a va 2  s. c  o  m

    c.weightx = 0.1; //Widen every other column a bit, when possible.
    c.fill = GridBagConstraints.NONE;
    JLabel label = new JLabel("A Label");
    label.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
    label.addFocusListener(this);
    gridbag.setConstraints(label, c);
    add(label);

    String comboPrefix = "ComboBox Item #";
    final int numItems = 15;
    Vector vector = new Vector(numItems);
    for (int i = 0; i < numItems; i++) {
        vector.addElement(comboPrefix + i);
    }
    JComboBox comboBox = new JComboBox(vector);
    comboBox.addFocusListener(this);
    gridbag.setConstraints(comboBox, c);
    add(comboBox);

    c.gridwidth = GridBagConstraints.REMAINDER;
    JButton button = new JButton("A Button");
    button.addFocusListener(this);
    gridbag.setConstraints(button, c);
    add(button);

    c.weightx = 0.0;
    c.weighty = 0.1;
    c.fill = GridBagConstraints.BOTH;
    String listPrefix = "List Item #";
    Vector listVector = new Vector(numItems);
    for (int i = 0; i < numItems; i++) {
        listVector.addElement(listPrefix + i);
    }
    JList list = new JList(listVector);
    list.setSelectedIndex(1); //It's easier to see the focus change
    //if an item is selected.
    list.addFocusListener(this);
    JScrollPane listScrollPane = new JScrollPane(list);
    //We want to prevent the list's scroll bars
    //from getting the focus - even with the keyboard.
    //Note that in general we prefer setRequestFocusable
    //over setFocusable for reasons of accessibility,
    //but this is to work around bug #4866958.
    listScrollPane.getVerticalScrollBar().setFocusable(false);
    listScrollPane.getHorizontalScrollBar().setFocusable(false);
    gridbag.setConstraints(listScrollPane, c);
    add(listScrollPane);

    c.weighty = 1.0; //Make this row as tall as possible.
    c.gridheight = GridBagConstraints.REMAINDER;
    //Set up the area that reports focus-gained and focus-lost events.
    display = new JTextArea();
    display.setEditable(false);
    //The method setRequestFocusEnabled prevents a
    //component from being clickable, but it can still
    //get the focus through the keyboard - this ensures
    //user accessibility.
    display.setRequestFocusEnabled(false);
    display.addFocusListener(this);
    JScrollPane displayScrollPane = new JScrollPane(display);

    //Work around for bug #4866958.
    displayScrollPane.getHorizontalScrollBar().setFocusable(false);
    displayScrollPane.getVerticalScrollBar().setFocusable(false);
    gridbag.setConstraints(displayScrollPane, c);
    add(displayScrollPane);

    setPreferredSize(new Dimension(450, 450));
    setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}

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From source file:userinterface.graph.GraphOptions.java

/** Creates a new instance of MultiGraphOptions */
public GraphOptions(GUIPlugin plugin, JPanel theModel, JFrame gui, String title) {
    super(gui, title);

    gop = new GraphOptionsPanel(plugin, gui, theModel);

    gop.setPreferredSize(new Dimension(400, 650));

    this.getContentPane().add(gop);

    JPanel p = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    this.getContentPane().add(p, BorderLayout.SOUTH);

    this.getContentPane().setSize(400, 650);

    JButton jb = new JButton("Close");

    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            gop.stopEditors();/* w w w  .j  av  a  2 s.c  o  m*/
            setVisible(false);
        }
    });

    jb.addFocusListener(new FocusListener() {
        /**
         * Invoked when a component gains the keyboard focus.
         */
        public void focusGained(FocusEvent e) {
        }

        /**
         * Invoked when a component loses the keyboard focus.
         */
        public void focusLost(FocusEvent e) {
            //gop.stopEditors();
        }

    });

    p.add(jb);

    pack();
    setLocationRelativeTo(getParent()); // centre
    //show();
    setDefaultCloseOperation(javax.swing.JFrame.DISPOSE_ON_CLOSE);
}

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From source file:edu.ku.brc.ui.UIHelper.java

/**
 * Creates an icon button with tooltip and action listener.
 * @param iconName the name of the icon (use default size)
 * @param toolTipTextKey the tooltip text resource bundle key
 * @param al the action listener/*from   w w  w.  j  a  v a 2  s .c  om*/
 * @param withEmptyBorder set an empyt border
 * @return the JButton icon button
 */
public static JButton createIconBtn(final String iconName, final IconManager.IconSize size,
        final String toolTipTextKey, final boolean withEmptyBorder, final Action action) {
    JButton btn = new JButton(action) {
        @Override
        public void setEnabled(boolean enabled) {
            super.setEnabled(enabled);
            setBorder(emptyBorder);
        }
    };

    btn.setOpaque(false);
    if (!withEmptyBorder) {
        btn.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseEntered(MouseEvent e) {
                if (((JButton) e.getSource()).isEnabled()) {
                    ((JButton) e.getSource()).setBorder(focusBorder);
                }
                super.mouseEntered(e);
            }

            @Override
            public void mouseExited(MouseEvent e) {
                if (((JButton) e.getSource()).isEnabled()) {
                    ((JButton) e.getSource()).setBorder(emptyBorder);
                }
                super.mouseExited(e);
            }

        });
        btn.addFocusListener(new FocusListener() {
            public void focusGained(FocusEvent e) {
                if (((JButton) e.getSource()).isEnabled()) {
                    ((JButton) e.getSource()).setBorder(focusBorder);
                }
            }

            public void focusLost(FocusEvent e) {
                if (((JButton) e.getSource()).isEnabled()) {
                    ((JButton) e.getSource()).setBorder(emptyBorder);
                }
            }

        });
        btn.setBorder(emptyBorder);
    }
    btn.setIcon(size != null ? IconManager.getIcon(iconName, size) : IconManager.getIcon(iconName));
    btn.setText(null);
    if (StringUtils.isNotEmpty(toolTipTextKey)) {
        btn.setToolTipText(getResourceString(toolTipTextKey));
    }
    btn.setEnabled(false);

    btn.setFocusable(true);
    btn.setMargin(new Insets(0, 0, 0, 0));
    setControlSize(btn);
    return btn;
}

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