Example usage for java.awt GridBagConstraints CENTER

Introduction

In this page you can find the example usage for java.awt GridBagConstraints CENTER.

Prototype

int CENTER

To view the source code for java.awt GridBagConstraints CENTER.

Click Source Link

Document

Put the component in the center of its display area.

Usage

From source file:Main.java

public static void main(String[] argv) {
    JFrame demo = new JFrame("GridBag demo, to center a component");
    JPanel parentPanel = new JPanel();
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints constraints = new GridBagConstraints();
    constraints.fill = GridBagConstraints.CENTER;
    gridbag.setConstraints(parentPanel, constraints);
    parentPanel.setLayout(gridbag);//from   w  w  w  .  j a  v a2 s  . co  m
    Label centerLabel = new Label(" AAA...");
    parentPanel.add(centerLabel);
    demo.add(parentPanel);
    demo.setSize(500, 500);
    demo.setVisible(true);
}

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From source file:Main.java

public static void main(String[] a) {
    final JFrame frame = new JFrame("GridBagLayout");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new GridBagLayout());
    JButton button;/* ww w  . j  a va 2  s  . c o m*/

    button = new JButton("One");
    addComponent(frame, button, 0, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    button = new JButton("Two");
    addComponent(frame, button, 1, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);

    button = new JButton("Three");
    addComponent(frame, button, 0, 1, 2, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);

    button = new JButton("Four");
    addComponent(frame, button, 0, 2, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.NONE);
    frame.setSize(500, 200);
    frame.setVisible(true);
}

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From source file:GridBagButtons.java

public static void main(final String args[]) {
    final JFrame frame = new JFrame("GridBagLayout");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new GridBagLayout());
    JButton button;/*w  w w.  j  ava2 s .co m*/
    // Row One - Three Buttons
    button = new JButton("One");
    addComponent(frame, button, 0, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    button = new JButton("Two");
    addComponent(frame, button, 1, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    button = new JButton("Three");
    addComponent(frame, button, 2, 0, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    // Row Two - Two Buttons
    button = new JButton("Four");
    addComponent(frame, button, 0, 1, 2, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    button = new JButton("Five");
    addComponent(frame, button, 2, 1, 1, 2, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    // Row Three - Two Buttons
    button = new JButton("Six");
    addComponent(frame, button, 0, 2, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    button = new JButton("Seven");
    addComponent(frame, button, 1, 2, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH);
    frame.setSize(500, 200);
    frame.setVisible(true);
}

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From source file:GridBagWithAnchor.java

public static void main(String[] args) {
    JFrame f = new JFrame("Demonstrates the use of anchor constraints");
    JPanel p = new JPanel(new GridBagLayout());

    p.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.insets = new Insets(2, 2, 2, 2);
    c.weighty = 1.0;// w ww .  j  a v a  2  s. co m
    c.weightx = 1.0;
    c.gridx = 0;
    c.gridy = 0;
    c.gridheight = 2;
    c.anchor = GridBagConstraints.NORTH; // place component on the North
    p.add(new JButton("Java"), c);
    c.gridx = 1;
    c.gridheight = 1;
    c.gridwidth = 2;
    c.anchor = GridBagConstraints.SOUTHWEST;
    p.add(new JButton("Source"), c);
    c.gridy = 1;
    c.gridwidth = 1;
    c.anchor = GridBagConstraints.CENTER; // remember to rest to center
    p.add(new JButton("and"), c);
    c.gridx = 2;
    p.add(new JButton("Support !!!"), c);

    WindowListener wndCloser = new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    };
    f.addWindowListener(wndCloser);

    f.getContentPane().add(p);
    f.setSize(600, 200);
    f.show();
}

---

From source file:Main.java

public static void main(String[] args) {
    JLabel userLabel = new JLabel("User Name");
    JLabel passLabel = new JLabel("Password");
    JTextField userText = new JTextField(20);
    JPasswordField passText = new JPasswordField(20);
    JButton loginButton = new JButton("Login");

    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();

    gbc.insets = new Insets(4, 4, 4, 4);
    gbc.gridx = 0;//from   w  w  w .java  2  s  .  c  om
    gbc.gridy = 0;
    gbc.fill = GridBagConstraints.NONE;
    panel.add(userLabel, gbc);

    gbc.gridx = 1;
    gbc.gridy = 0;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    panel.add(userText, gbc);

    gbc.gridx = 0;
    gbc.gridy = 1;
    gbc.fill = GridBagConstraints.NONE;
    panel.add(passLabel, gbc);

    gbc.gridx = 1;
    gbc.gridy = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    panel.add(passText, gbc);

    gbc.gridx = 0;
    gbc.gridy = 2;
    gbc.fill = GridBagConstraints.NONE;
    gbc.anchor = GridBagConstraints.CENTER;
    gbc.gridwidth = 2;
    panel.add(loginButton, gbc);

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JScrollPane(panel));
    f.pack();
    f.setLocationRelativeTo(null);
    f.setVisible(true);
}

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From source file:TextAcceleratorExample.java

public static void main(String[] args) {
    try {//www. j  av  a  2  s.  c  o  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    JLabel l;
    JTextField t;
    JButton b;
    JFrame f = new JFrame("Text Accelerator Example");
    Container cp = f.getContentPane();
    cp.setLayout(new GridBagLayout());
    cp.setBackground(UIManager.getColor("control"));
    GridBagConstraints c = new GridBagConstraints();

    c.gridx = 0;
    c.gridy = GridBagConstraints.RELATIVE;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.insets = new Insets(2, 2, 2, 2);
    c.anchor = GridBagConstraints.EAST;

    cp.add(l = new JLabel("Name:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('n');
    cp.add(l = new JLabel("House/Street:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('h');
    cp.add(l = new JLabel("City:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('c');
    cp.add(l = new JLabel("State/County:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('s');
    cp.add(l = new JLabel("Zip/Post code:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('z');
    cp.add(l = new JLabel("Telephone:", SwingConstants.RIGHT), c);
    l.setDisplayedMnemonic('t');
    cp.add(b = new JButton("Clear"), c);
    b.setMnemonic('l');

    c.gridx = 1;
    c.gridy = 0;
    c.weightx = 1.0;
    c.fill = GridBagConstraints.HORIZONTAL;
    c.anchor = GridBagConstraints.CENTER;

    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('n');
    c.gridx = 1;
    c.gridy = GridBagConstraints.RELATIVE;
    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('h');
    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('c');
    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('s');
    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('z');
    cp.add(t = new JTextField(35), c);
    t.setFocusAccelerator('t');
    c.weightx = 0.0;
    c.fill = GridBagConstraints.NONE;
    cp.add(b = new JButton("OK"), c);
    b.setMnemonic('o');

    f.pack();
    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent evt) {
            System.exit(0);
        }
    });
    f.setVisible(true);
}

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From source file:com.ohalo.cn.awt.JFreeChartTest.java

public static void main(String[] args) throws Exception {
    JFreeChartTest test = new JFreeChartTest();
    List<JFreeChart> charts = test.printHardDiskCharts();

    JPanel mainPanel = new JPanel();
    JFreeChart chart = charts.get(0);//  ww w.  ja  v  a  2s . c  o  m
    JPanel panel = new JPanel();
    panel.setLayout(new BorderLayout());
    ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new Dimension(400, 300));
    panel.add(chartPanel, BorderLayout.CENTER);
    mainPanel.add(panel, new GridBagConstraints(0, 0, 1, 1, 1, 1, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, new Insets(20, 20, 10, 10), 0, 0));

    chart = charts.get(1);
    panel = new JPanel();
    ChartPanel chartPanel2 = new ChartPanel(chart);
    chartPanel2.setPreferredSize(new Dimension(400, 300));
    panel.setLayout(new BorderLayout());
    panel.add(chartPanel2, BorderLayout.CENTER);
    mainPanel.add(panel, new GridBagConstraints(1, 0, 1, 1, 1, 1, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, new Insets(10, 10, 10, 10), 0, 0));

    chart = charts.get(2);
    panel = new JPanel();
    ChartPanel chartPanel3 = new ChartPanel(chart);
    chartPanel3.setPreferredSize(new Dimension(400, 300));
    panel.setLayout(new BorderLayout());
    panel.add(chartPanel3, BorderLayout.CENTER);
    mainPanel.add(panel, new GridBagConstraints(1, 0, 1, 1, 1, 1, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, new Insets(10, 10, 10, 10), 0, 0));

    chart = charts.get(3);
    panel = new JPanel();
    ChartPanel chartPanel4 = new ChartPanel(chart);
    chartPanel4.setPreferredSize(new Dimension(400, 300));
    panel.setLayout(new BorderLayout());
    panel.add(chartPanel4, BorderLayout.CENTER);

    mainPanel.add(panel, new GridBagConstraints(1, 1, 1, 1, 1, 1, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, new Insets(10, 10, 20, 20), 0, 0));

    JDialog dialog = new JDialog(new JFrame(), true);
    dialog.setTitle("?");
    dialog.setSize(850, 650);
    dialog.getContentPane().add(mainPanel);
    dialog.setVisible(true);
}

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From source file:Main.java

public static void addComponent(Container container, GridBagLayout gbl, Component c, int x, int y, int width,
        int height, double weightx, double weighty, int fill) {
    addComponent(container, gbl, c, x, y, width, height, weightx, weighty, GridBagConstraints.CENTER, 0, 0,
            fill);/*from  ww  w .  j a v a  2s.  c  om*/

}

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From source file:Main.java

public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLayout(new BorderLayout());

    JPanel upper = new JPanel();
    GridBagLayout gridbag = new GridBagLayout();
    upper.setLayout(gridbag);//from   ww  w.j a va  2 s  .c  om
    GridBagConstraints gbc = new GridBagConstraints();

    JButton toolbar1 = new JButton("toolbar1");
    JButton toolbar2 = new JButton("toolbar2");
    JButton toolbar3 = new JButton("toolbar3");

    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.weightx = 1.0;
    gbc.weighty = 1.0;
    gbc.anchor = GridBagConstraints.WEST;
    upper.add(toolbar1, gbc);

    gbc.gridx = 1;
    gbc.anchor = GridBagConstraints.CENTER;
    upper.add(toolbar2, gbc);

    gbc.gridx = 2;
    gbc.anchor = GridBagConstraints.EAST;
    gbc.gridwidth = GridBagConstraints.REMAINDER;
    upper.add(toolbar3, gbc);

    add(upper, BorderLayout.NORTH);

    JPanel something = new JPanel();
    something.setBackground(Color.WHITE);
    something.setPreferredSize(new Dimension(600, 600));
    something.repaint();
    add(something, BorderLayout.CENTER);

    pack();
    setVisible(true);
}

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From source file:Main.java

public LoginPanel() {
    setLayout(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();

    gbc.anchor = GridBagConstraints.CENTER;
    gbc.weightx = 1;//from   w w  w  .j  a v a2 s . c  o m
    gbc.gridx = 2;
    gbc.anchor = GridBagConstraints.EAST;
    JLabel label = new JLabel("Username: ");
    add(label, gbc);

    gbc.anchor = GridBagConstraints.WEST;
    gbc.gridx = 3;
    gbc.gridwidth = 2;
    add(userfield, gbc);

    gbc.gridy = 1;
    add(passfield, gbc);

    gbc.anchor = GridBagConstraints.EAST;
    gbc.gridx = 2;
    label = new JLabel("Password: ");
    add(label, gbc);

    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.gridy = 2;
    gbc.gridx = 1;
    gbc.gridwidth = 5;
    add(new JSeparator(JSeparator.HORIZONTAL), gbc);
}

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