TraceBar.java

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package org.libcsdbg.jtracer;

import java.util.Hashtable;
import java.util.Calendar;

import java.awt.Font;
import java.awt.Color;
import java.awt.Insets;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;

import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.BorderFactory;
import javax.swing.border.EtchedBorder;

public class TraceBar extends JPanel
{
  private static final long serialVersionUID = 0x00;

  private Hashtable<String, JLabel> fields = null;


  TraceBar()
  {
    super();
    fields = new Hashtable<String, JLabel>();
    GridBagLayout lm = new GridBagLayout();
    GridBagConstraints c = new GridBagConstraints();
    setLayout(lm);

    JPanel field = createField("message");
    c.gridx = c.gridy = 0;
    c.weightx = 1;
    c.insets = new Insets(0, 0, 0, 0);
    c.fill = GridBagConstraints.HORIZONTAL;
    lm.setConstraints(field, c);
    add(field);

    field = createField("timestamp");
    c.gridx++;
    c.weightx = 0;
    c.fill = GridBagConstraints.NONE;
    lm.setConstraints(field, c);
    add(field);

    field = createField("address");
    c.gridx++;
    lm.setConstraints(field, c);
    add(field);
  }


  public void setField(String nm, String text)
  {
    fields.get(nm).setText(text);
  }


  public void setMessage(String msg)
  {
    fields.get("message").setText(msg);
  }


  public void setTimestamp(Long microtm)
  {
    JLabel field = fields.get("timestamp");

    Calendar c = Calendar.getInstance();
    c.setTimeInMillis(microtm / 1000);

    int d1 = c.get(Calendar.DATE);
    int d2 = c.get(Calendar.MONTH) + 1;
    int d3 = c.get(Calendar.YEAR);

    String text = "";
    text += ((d1 < 10) ? "0" : "") + d1 + "/";
    text += ((d2 < 10) ? "0" : "") + d2 + "/" + d3 + " ";

    int h1 = c.get(Calendar.HOUR);
    int h2 = c.get(Calendar.MINUTE);
    int h3 = c.get(Calendar.SECOND);

    text += ((h1 < 10) ? "0" : "") + h1 + ":";
    text += ((h2 < 10) ? "0" : "") + h2 + ":";
    text += ((h3 < 10) ? "0" : "") + h3;

    field.setText(text);
  }


  public void setAddress(String addr, int port)
  {
    fields.get("address").setText(addr + ":" + port);
  }


  public void clear()
  {
    fields.get("message").setText("n/a");
    fields.get("timestamp").setText("n/a");
    fields.get("address").setText("n/a");
  }


  private JPanel createField(String nm)
  {
    GridBagLayout lm = new GridBagLayout();
    GridBagConstraints c = new GridBagConstraints();
    JPanel retval = new JPanel(lm);

    Registry conf = Registry.getCurrent();
    retval.setBackground((Color) conf.get("statusbar", "bgcolor"));
    retval.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED));

    JLabel field = new JLabel("n/a");
    field.setFont((Font) conf.get("statusbar", "font"));
    field.setForeground((Color) conf.get("statusbar", "fgcolor"));

    if (nm.equals("message")) {
      c.weightx = 1;
      c.anchor = GridBagConstraints.EAST;
    }

    c.insets = new Insets(1, 8, 1, 8);
    lm.setConstraints(field, c);
    retval.add(field);

    fields.put(nm, field);
    return retval;
  }
}