Genarate JPanel

[Bill]

Hi everybody,

First, i want to excuse my english because i'm a french guy. Thank you

I want to generate multiple JPanel inside a single JPanel. I try with a for loop, but this method don't give me any succes.

The situation is...... i recieve an ID between 1 to unlimited and depending this ID i want to generate a JPanel with a Jtable inside

Ex. ID=3 -> 3 JPanel
ID=8 -> 8 JPanel

i hope i'm clear with my poor english

here is a sample of my code

            GeneralContent = new JPanel();
            GeneralContent.setName();
            GeneralContent.setLayout(new BorderLayout());
 
           
            deviceInfoContent = new JPanel();
            deviceInfoContent.setLayout(new FlowLayout());
 
            
            JLabel lblDevice = new JLabel();
            JLabel lblDeviceName = new JLabel();
                          
            lblDevice.setText("some text");
            lblDeviceName.setText("some text");
            
                    
            deviceInfoContent.add(lblDevice);
            deviceInfoContent.add(lblDeviceName);
            
            GeneralContent.add(deviceInfoContent,BorderLayout.NORTH);
            GeneralContent.revalidate();
            GeneralContent.add(_table, BorderLayout.CENTER);
            GeneralContent.revalidate();
 
             //This paenl is my principal container
            _panel.add(GeneralContent);
            _panel.revalidate();

Thanks a lot guys

[hardwired]

// Did you mean for this
GeneralContent.add(_table, BorderLayout.CENTER);
// to be like this?
GeneralContent.add(_panel, BorderLayout.CENTER);

[Bill]

// Did you mean for this
GeneralContent.add(_table, BorderLayout.CENTER);
// to be like this?
GeneralContent.add(_panel, BorderLayout.CENTER);

the _panel is the container of GeneralContent and _table is a JTable in the genralContent.

[hardwired]

import java.awt.*;
import javax.swing.*;
import javax.swing.table.AbstractTableModel;

public class AddingComponents {
    private JPanel getContent() {
        JPanel generalContent = new JPanel();
        generalContent.setName("generalContent");
        generalContent.setLayout(new BorderLayout());

        JPanel deviceInfoContent = new JPanel();
        System.out.println("default layout manager for JPanel = " +
                   deviceInfoContent.getLayout().getClass().getName());
        deviceInfoContent.setLayout(new GridLayout(1,0));

        JLabel lblDevice = new JLabel();
        JLabel lblDeviceName = new JLabel();

        lblDevice.setText("some text");
        lblDeviceName.setText("some text");

        deviceInfoContent.add(lblDevice);
        deviceInfoContent.add(lblDeviceName);

        generalContent.add(deviceInfoContent,BorderLayout.NORTH);
//        generalContent.revalidate();
        generalContent.add(getTable(), BorderLayout.CENTER);
//        generalContent.revalidate();

         //This paenl is my principal container
         JPanel _panel = new JPanel();
         _panel.add(generalContent);
//         _panel.revalidate();
         return _panel;             // returning either of
                //generalContent;   // these will work okay
    }

    private JScrollPane getTable() {
        JTable table = new JTable(getModel());
        Dimension d = table.getPreferredSize();
        d.height = 175;
        table.setPreferredScrollableViewportSize(d);
        return new JScrollPane(table);
    }

    private AbstractTableModel getModel() {
        return new AbstractTableModel() {
            public int getRowCount() { return 10; }

            public int getColumnCount() { return 4; }

            public Object getValueAt(int row, int col) {
                return String.valueOf((row+1)) + (col+1);
            }
        };
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new AddingComponents().getContent());
        f.pack();
        f.setLocation(200,200);
        f.setVisible(true);
    }
}

[Bill]

hi,

this work fine, but what i want is to loop into each panel and multiply them and display them one under each other.

The number of panel can be between 1 to 10 but i don't never know how many panel i have :eek: ......it's why i use a for loop.....

thanks a lot

[hardwired]

import java.awt.*;
import java.util.Random;
import javax.swing.*;
import javax.swing.table.AbstractTableModel;

public class AddingComponents {
    Random seed = new Random();

    private JPanel getGeneralContent() {
        JPanel generalContent = new JPanel();
        generalContent.setName("generalContent");
        generalContent.setLayout(new BorderLayout());

        JPanel deviceInfoContent = new JPanel(new GridLayout(1,0));

        JLabel lblDevice = new JLabel("device", JLabel.CENTER);
        JLabel lblDeviceName = new JLabel("name", JLabel.CENTER);

        deviceInfoContent.add(lblDevice);
        deviceInfoContent.add(lblDeviceName);

        generalContent.add(deviceInfoContent,BorderLayout.NORTH);
        generalContent.add(getTable(), BorderLayout.CENTER);

         return generalContent;
    }

    private JScrollPane getTable() {
        JTable table = new JTable(getModel());
        Dimension d = table.getPreferredSize();
        d.height = 160;
        table.setPreferredScrollableViewportSize(d);
        return new JScrollPane(table);
    }

    private AbstractTableModel getModel() {
        return new AbstractTableModel() {
            public int getRowCount() { return 10; }

            public int getColumnCount() { return 2; }

            public Object getValueAt(int row, int col) {
                return String.valueOf((row+1)) + (col+1);
            }
        };
    }

    private JScrollPane getIDPanel() {
        int numPanels = 3 + seed.nextInt(8);  // [3 - 10]
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.weightx = 1.0;  // Allows horizontal expansion.
        gbc.fill = GridBagConstraints.HORIZONTAL; // Expand.
        gbc.gridwidth = GridBagConstraints.REMAINDER; // 1 column
        Dimension d = new Dimension(200,50);
        for(int i = 0; i < numPanels; i++) {
            JPanel p = new JPanel();
            p.setPreferredSize(d);
            p.setBackground(getColor());
            panel.add(p, gbc);
        }
        JScrollPane scrollPane = new JScrollPane(panel);
        scrollPane.setPreferredSize(new Dimension(200,200));
        return scrollPane;
    }

    private Color getColor() {
        return new Color(seed.nextInt(0x1ffffff));
    }

    public static void main(String[] args) {
        AddingComponents app = new AddingComponents();
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(app.getGeneralContent(), BorderLayout.NORTH);
        f.add(app.getIDPanel());
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
}

[Bill]

Hi hardwired,

thanks a lot for your help. I think this is what i want. I'll try this right now.

Thx