Re: Layout suggestions - table layout

From:
"John B. Matthews" <nospam@nospam.invalid>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 30 Apr 2009 00:33:50 -0400
Message-ID:
<nospam-FF5158.00335030042009@news.aioe.org>
In article
<5200b81f-949f-44f7-a2dc-96044fc34a17@y10g2000prc.googlegroups.com>,
 sso <strongsilentone@gmail.com> wrote:

On Apr 29, 6:26??pm, Knute Johnson <nos...@rabbitbrush.frazmtn.com>
wrote:

sso wrote:

I need to layout data in a tabular fashion. ??In html a table
layout would work perfectly. ?? In swing, it does not. ??Firstly I
need multiline cells - there doesn't seem to be a plain easy way
to do this in swing. ?? Is there a work around? ??Other
suggestions?


What's wrong with a JLabel? ??That will do multi-line text and even
some simple HTML if you want.


[Please trim signatures when responding.]

Many Swing components can render HTML 3.2, including tables[1].

The problem I have with using html is that I have no means of auto-
sizing the label (or table cell).


Use a suitable layout to size the labels[1].

I just tried this all out and its not quite doing what I want.


What did you try? You should create a short, compilable example to show
what you're doing and where you're having trouble[2].

Am I missing something?


Sun's tutorial is good place to start[1].

Here's another example:

<code>
package news;

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/** @author John B. Matthews */
public class GridTest {

    private static final int ROWS = 5;
    private static final int COLS = 4;

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            @ Override
            public void run() {
                new GridTest().create();
            }
        });
    }

    void create() {
        JPanel panel = new JPanel();
        panel.setLayout(new GridLayout(ROWS, COLS));
        for (int i = 0; i < ROWS * COLS; i++) {
            panel.add(new LabelPanel());
        }
        JFrame f = new JFrame("GridTest");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(panel);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }
}

/**
 * A LabelPanel has a label showing its current size.
 */
class LabelPanel extends JPanel {

    private static final String FORE =
        "<html><body align=center>Size: <b>";
    private static final String AFT =
        "</b><br><i>ad astra<br>per aspera</i></body></html>";
    private final JLabel sizeLabel = new JLabel();

    public LabelPanel() {
        this.setPreferredSize(new Dimension(150, 75));
        this.add(sizeLabel);
        this.addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent e) {
                int w = e.getComponent().getWidth();
                int h = e.getComponent().getHeight();
                sizeLabel.setText(FORE + w + "\u00d7" + h + AFT);
            }
        });
    }
}
</code>

[1]<http://java.sun.com/docs/books/tutorial/uiswing/components/html.html>
[2]<http://pscode.org/sscce.html>
[Please trim signatures when responding.]
--
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>

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