Re: How many panels can I add to a JFrame

RedGrittyBrick wrote:


For fun, I just did a comparison of MigLayout vs nested simple Layouts

~28 lines for a single MigLayout (excluding blank lines)
~52 lines for nested layouts.

I'll let someone else show how to do it in a single GridBagLayout :-)

Here's the panel constructor using MigLayout ...
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     Danny() {
         setLayout(new MigLayout("wrap",
            "[grow][][grow][][grow][]", "[][grow][]"));

         add(new JLabel("Label 1"), "span 5");

         add(new JButton("Button 1"), "span 1 3, split 4, flowy");
         add(new JButton("Button 2"));
         add(new JButton("Button 3"));
         add(new JButton("Button 4"));

         add(new Pic("Pic1"), "grow");

         JRadioButton radio1 = new JRadioButton("Radio 1");
         JRadioButton radio2 = new JRadioButton("Radio 2");
         JRadioButton radio3 = new JRadioButton("Radio 3");
         ButtonGroup group = new ButtonGroup();
         group.add(radio1);
         group.add(radio2);
         group.add(radio3);
         add(radio1, "split 3, flowy");
         add(radio2);
         add(radio3);

         add(new Pic("Pic2"), "grow");

         add(new JCheckBox("Check 1"), "split 3, flowy");
         add(new JCheckBox("Check 2"));
         add(new JCheckBox("Check 3"));

         add(new Pic("Pic3"), "grow");

         add(new JLabel("label"));
         add(new JComboBox(new String[] {"One","Two"}));
         add(new JCheckBox("Check Box"));
     }
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Here's the panel constructor using nested simple layouts ...
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     Danny() {
         setLayout(new BorderLayout());

         JLabel pic1Label = new Pic("Pic1");
         JLabel pic2Label = new Pic("Pic2");
         JLabel pic3Label = new Pic("Pic3");

         JPanel checkPanel = new JPanel();
         checkPanel.setLayout(new BoxLayout(checkPanel,
BoxLayout.PAGE_AXIS));
         checkPanel.add(new JCheckBox("Check 1"));
         checkPanel.add(new JCheckBox("Check 2"));
         checkPanel.add(new JCheckBox("Check 3"));

         JPanel radioPanel = new JPanel();
         radioPanel.setLayout(new BoxLayout(radioPanel,
BoxLayout.PAGE_AXIS));
         JRadioButton radio1 = new JRadioButton("Radio 1");
         JRadioButton radio2 = new JRadioButton("Radio 2");
         JRadioButton radio3 = new JRadioButton("Radio 3");
         ButtonGroup group = new ButtonGroup();
         group.add(radio1);
         group.add(radio2);
         group.add(radio3);
         radioPanel.add(radio1);
         radioPanel.add(radio2);
         radioPanel.add(radio3);

         JPanel centerPanel = new JPanel();
         centerPanel.setLayout(new BoxLayout(centerPanel,
BoxLayout.LINE_AXIS));
         centerPanel.add(pic1Label);
         centerPanel.add(checkPanel);
         centerPanel.add(pic2Label);
         centerPanel.add(radioPanel);
         centerPanel.add(pic3Label);

         JPanel bottomPanel = new JPanel();
         bottomPanel.setBorder(BorderFactory.createRaisedBevelBorder());
         bottomPanel.setLayout(new FlowLayout());
         bottomPanel.add(new JLabel("label"));
         bottomPanel.add(new JComboBox(new String[] {"One","Two"}));
         bottomPanel.add(new JCheckBox("Check Box"));

         JPanel leftPanel = new JPanel();
         leftPanel.setLayout(new BorderLayout());
         leftPanel.add(new JLabel("Label 1"), BorderLayout.NORTH);
         leftPanel.add(centerPanel, BorderLayout.CENTER);
         leftPanel.add(bottomPanel, BorderLayout.SOUTH);

         JPanel buttonPanel = new JPanel();
         buttonPanel.setBorder(BorderFactory.createRaisedBevelBorder());
         buttonPanel.setLayout(new BoxLayout(buttonPanel,
BoxLayout.PAGE_AXIS));
         buttonPanel.add(Box.createVerticalGlue());
         buttonPanel.add(new JButton("Button 1"));
         buttonPanel.add(new JButton("Button 2"));
         buttonPanel.add(new JButton("Button 3"));
         buttonPanel.add(new JButton("Button 4"));
         buttonPanel.add(Box.createVerticalGlue());

         add(leftPanel, BorderLayout.CENTER);
         add(buttonPanel, BorderLayout.EAST);
     }
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Here's the surrounding code needed to make a SSCCE
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public class Danny extends JPanel{

     // insert Danny constructor here

     class Pic extends JLabel {
         Pic(String caption) {
             setText(caption);
             setOpaque(true);
             setHorizontalAlignment(SwingConstants.CENTER);
             setBackground(Color.GREEN);
             Dimension size = new Dimension(100,100);
             setMinimumSize(size);
             setPreferredSize(size);
             setMaximumSize(new Dimension(1000,1000));
         }
     }

     public static void main (String[] args) {
         SwingUtilities.invokeLater( new Runnable(){
             public void run() {
                 JFrame f = new JFrame("Danny's Layout Problem");
                 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 f.add(new Danny());
                 f.pack();
                 f.setVisible(true);
             }
         });
     }
}
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