Example usage for javax.swing JPanel JPanel

Introduction

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

Prototype

public JPanel(boolean isDoubleBuffered) 

Source Link

Document

Creates a new JPanel with FlowLayout and the specified buffering strategy.

Usage

From source file:NumberFormatgetNumberInstanceLocaleFRENCH.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Number Input");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Font font = new Font("SansSerif", Font.BOLD, 16);

    JLabel label;/*  w  ww.  j a v  a2 s  . c om*/
    JFormattedTextField input;
    JPanel panel;

    BoxLayout layout = new BoxLayout(frame.getContentPane(), BoxLayout.Y_AXIS);
    frame.setLayout(layout);

    Format number = NumberFormat.getNumberInstance(Locale.FRENCH);
    label = new JLabel("French Number:");
    input = new JFormattedTextField(number);
    input.setValue(2424.50);
    input.setColumns(20);
    input.setFont(font);

    panel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    panel.add(label);
    panel.add(input);
    frame.add(panel);

    frame.add(new JTextField());
    frame.pack();
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    URL urlImage1 = new URL("http://www.java2s.com/style/download.png");

    final Image fgImage = ImageIO.read(urlImage1);
    int w = fgImage.getWidth(null);
    int h = fgImage.getHeight(null);
    final BufferedImage bgImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

    final BufferedImage finalImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = finalImage.createGraphics();
    g.drawImage(bgImage, 0, 0, null);/*ww w. j ava  2s.c o m*/
    g.drawImage(fgImage, 0, 0, null);
    g.dispose();

    Runnable r = new Runnable() {
        @Override
        public void run() {
            JPanel gui = new JPanel(new GridLayout(1, 0, 5, 5));

            gui.add(new JLabel(new ImageIcon(bgImage)));
            gui.add(new JLabel(new ImageIcon(fgImage)));
            gui.add(new JLabel(new ImageIcon(finalImage)));

            JOptionPane.showMessageDialog(null, gui);
        }
    };
    SwingUtilities.invokeLater(r);
}

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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 ww w  . j  a va 2 s  .  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);
}

---

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("JSpinner Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DateFormatSymbols symbols = new DateFormatSymbols(Locale.FRENCH);

    String days[] = symbols.getWeekdays();
    SpinnerModel model1 = new SpinnerListModel(days);
    JSpinner spinner1 = new JSpinner(model1);

    ChangeListener listener = new ChangeListener() {
        public void stateChanged(ChangeEvent e) {
            System.out.println("Source: " + e.getSource());
        }/*from  w ww  .  ja  v a 2s  .  c o m*/
    };

    spinner1.addChangeListener(listener);

    JLabel label1 = new JLabel("French Days/List");
    JPanel panel1 = new JPanel(new BorderLayout());
    panel1.add(label1, BorderLayout.WEST);
    panel1.add(spinner1, BorderLayout.CENTER);
    frame.add(panel1, BorderLayout.NORTH);

    frame.setSize(200, 90);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    final JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JButton loadButton = new JButton("Display Image");
    loadButton.addActionListener(ev -> {
        JFileChooser fc = new JFileChooser(System.getProperty("user.home"));
        fc.addChoosableFileFilter(//from   www  .j a  v  a 2 s.  com
                new FileNameExtensionFilter("Image files", new String[] { "png", "jpg", "jpeg", "gif" }));
        if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
            try {
                Image image = ImageIO.read(fc.getSelectedFile());
                if (image != null) {
                    JPanel panel = new JPanel(new BorderLayout(10, 10));
                    panel.add(new JLabel(fc.getSelectedFile().toString()), BorderLayout.NORTH);
                    panel.add(new JLabel(new ImageIcon(image)));
                    JOptionPane.showMessageDialog(frame, panel);
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    });

    frame.add(loadButton);
    frame.pack();
    frame.setLocationByPlatform(true);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    final ConfirmDialog dialog = new ConfirmDialog(f);
    final JTree tree = new JTree();
    tree.setVisibleRowCount(5);//from  www. j  a  v  a 2s .  c o  m
    final JScrollPane treeScroll = new JScrollPane(tree);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JButton b = new JButton("Choose Tree Item");
    b.addActionListener(e -> {
        int result = dialog.showConfirmDialog(treeScroll, "Choose an item");
        if (result == ConfirmDialog.OK_OPTION) {
            System.out.println(tree.getSelectionPath());
        } else {
            System.out.println("User cancelled");
        }
    });
    JPanel p = new JPanel(new BorderLayout());
    p.add(b);
    p.setBorder(new EmptyBorder(50, 50, 50, 50));
    f.setContentPane(p);
    f.pack();
    f.setLocationByPlatform(true);
    f.setVisible(true);

}

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From source file:CustomTreeCellRenderer.java

public static void main(String[] args) {
    ImageIcon iconWhite = new ImageIcon("white.jpg");
    ImageIcon iconBlack = new ImageIcon("black.jpg");
    ;/*w  w w .ja v a2s .  com*/
    JFrame frame = new JFrame();
    frame.setContentPane(new JPanel(new BorderLayout()));

    JTree tree = new JTree();
    frame.getContentPane().add(tree);

    CustomTreeCellRenderer renderer = new CustomTreeCellRenderer();
    renderer.setRendererIcon(iconWhite);
    tree.setCellRenderer(renderer);

    JPanel panelButtons = new JPanel();

    JButton buttonWhite = new JButton("");
    buttonWhite.setIcon(iconWhite);
    JButton buttonBlack = new JButton("");
    buttonBlack.setIcon(iconBlack);

    buttonBlack.addActionListener(e -> {
        renderer.setRendererIcon(iconBlack);
        tree.repaint();
    });

    panelButtons.add(buttonBlack);
    panelButtons.add(buttonWhite);
    frame.getContentPane().add(panelButtons, BorderLayout.SOUTH);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(500, 500);
    frame.setVisible(true);
}

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From source file:JTextFieldSample.java

public static void main(String args[]) {
    String title = (args.length == 0 ? "TextField Listener Example" : args[0]);
    JFrame frame = new JFrame(title);
    Container content = frame.getContentPane();

    JPanel namePanel = new JPanel(new BorderLayout());
    JLabel nameLabel = new JLabel("Name: ");
    nameLabel.setDisplayedMnemonic(KeyEvent.VK_N);
    JTextField nameTextField = new JTextField();
    nameLabel.setLabelFor(nameTextField);
    namePanel.add(nameLabel, BorderLayout.WEST);
    namePanel.add(nameTextField, BorderLayout.CENTER);
    content.add(namePanel, BorderLayout.NORTH);

    JPanel cityPanel = new JPanel(new BorderLayout());
    JLabel cityLabel = new JLabel("City: ");
    cityLabel.setDisplayedMnemonic(KeyEvent.VK_C);
    JTextField cityTextField = new JTextField();
    cityLabel.setLabelFor(cityTextField);
    cityPanel.add(cityLabel, BorderLayout.WEST);
    cityPanel.add(cityTextField, BorderLayout.CENTER);
    content.add(cityPanel, BorderLayout.SOUTH);

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Command: " + actionEvent.getActionCommand());
        }/*from w  ww .ja va  2s .co  m*/
    };
    nameTextField.setActionCommand("Yo");
    nameTextField.addActionListener(actionListener);
    cityTextField.addActionListener(actionListener);

    KeyListener keyListener = new KeyListener() {
        public void keyPressed(KeyEvent keyEvent) {
            printIt("Pressed", keyEvent);
        }

        public void keyReleased(KeyEvent keyEvent) {
            printIt("Released", keyEvent);
        }

        public void keyTyped(KeyEvent keyEvent) {
            printIt("Typed", keyEvent);
        }

        private void printIt(String title, KeyEvent keyEvent) {
            int keyCode = keyEvent.getKeyCode();
            String keyText = KeyEvent.getKeyText(keyCode);
            System.out.println(title + " : " + keyText + " / " + keyEvent.getKeyChar());
        }
    };
    nameTextField.addKeyListener(keyListener);
    cityTextField.addKeyListener(keyListener);

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent input) {
            final JTextComponent source = (JTextComponent) input;
            String text = source.getText();
            if ((text.length() != 0) && !(text.equals("Exit"))) {
                Runnable runnable = new Runnable() {
                    public void run() {
                        JOptionPane.showMessageDialog(source, "Can't leave.", "Error Dialog",
                                JOptionPane.ERROR_MESSAGE);
                    }
                };
                SwingUtilities.invokeLater(runnable);
                return false;
            } else {
                return true;
            }
        }
    };
    nameTextField.setInputVerifier(verifier);
    cityTextField.setInputVerifier(verifier);

    DocumentListener documentListener = new DocumentListener() {
        public void changedUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        public void insertUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        public void removeUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        private void printIt(DocumentEvent documentEvent) {
            DocumentEvent.EventType type = documentEvent.getType();
            String typeString = null;
            if (type.equals(DocumentEvent.EventType.CHANGE)) {
                typeString = "Change";
            } else if (type.equals(DocumentEvent.EventType.INSERT)) {
                typeString = "Insert";
            } else if (type.equals(DocumentEvent.EventType.REMOVE)) {
                typeString = "Remove";
            }
            System.out.print("Type  :   " + typeString + " / ");
            Document source = documentEvent.getDocument();
            int length = source.getLength();
            try {
                System.out.println("Contents: " + source.getText(0, length));
            } catch (BadLocationException badLocationException) {
                System.out.println("Contents: Unknown");
            }
        }
    };
    nameTextField.getDocument().addDocumentListener(documentListener);
    cityTextField.getDocument().addDocumentListener(documentListener);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) throws AWTException {
    Runnable r = new Runnable() {
        @Override//from w w  w. j  a v  a  2s.c o m
        public void run() {
            try {
                URL url = new URL("http://www.java2s.com/style/download.png");
                BufferedImage bi = ImageIO.read(url);
                JPanel gui = new JPanel(new GridLayout(1, 2, 2, 2));

                gui.add(new JLabel(new ImageIcon(bi)));
                gui.add(new JLabel(new ImageIcon(getFlippedImage(bi))));

                JOptionPane.showMessageDialog(null, gui);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    };
    SwingUtilities.invokeLater(r);
}

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From source file:RolloverSpinnerListModel.java

public static void main(String args[]) {
    JFrame frame = new JFrame("JSpinner Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    String[] values = new String[] { "a", "b", "c" };

    RolloverSpinnerListModel model = new RolloverSpinnerListModel(values);

    JSpinner spinner1 = new JSpinner(model);

    JPanel panel1 = new JPanel(new BorderLayout());
    panel1.add(spinner1, BorderLayout.CENTER);
    frame.add(panel1, BorderLayout.SOUTH);

    frame.setSize(200, 90);/*from   w ww . ja  v a 2 s  . c  om*/
    frame.setVisible(true);
}

---

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