ToolBar.java

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package org.libcsdbg.jtracer;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import java.awt.event.ActionListener;
import java.awt.Insets;
import java.awt.Component;

import javax.swing.JToolBar;

public class ToolBar extends JToolBar implements PropertyChangeListener
{
  private static final long serialVersionUID = 0x00;

  private ActionListener handler = null;


  ToolBar(ActionListener owner)
  {
    super();
    handler = owner;
    Registry conf = Registry.getCurrent();

    /*
     * Setting a new border removes the float handle. To properly set the border
     * get the current (probably matte) border and set its properties
     */
    setName((String) conf.get("generic", "name") + " tools");
    setRollover(false);

    add(createTool("Start"));
    add(createTool("Stop"));
    add(createTool("Restart"));
    addSeparator();

    add(createTool("Select previous"));
    add(createTool("Select next"));
    add(createTool("Close"));
    addSeparator();

    add(createTool("Cascade"));
    add(createTool("Minimize all"));
    add(createTool("Restore all"));
    add(createTool("Close all"));
    addSeparator();

    add(createTool("Find"));
    add(createTool("Preferences"));
  }


  private Button createTool(String cmd)
  {
    String nm = cmd.toLowerCase().replace(' ', '_') + "24.png";
    Button retval = new Button(nm, cmd, handler);
    retval.setMargin(new Insets(2, 2, 2, 2));
    return retval;
  }


  private void renderTool(Component c, int index, String key, Object val)
  {
    Boolean how = (Boolean) val;

    if (key.equals("isServing"))
      switch (index) {
        case 0:
          c.setEnabled(!how);
          break;

        case 1:
        case 2:
          c.setEnabled(how);
      }

    else if (key.equals("hasClients"))
      if (index >= 4 && index <= 13)
        c.setEnabled(how);
  }


  public void propertyChange(PropertyChangeEvent event)
  {
    try {
      String key = event.getPropertyName();
      Object val = event.getNewValue();

      for (int i = getComponentCount() - 1; i >= 0; i--) {
        Component c = getComponent(i);
        if (c instanceof Button)
          renderTool(c, i, key, val);
      }
    }

    catch (Throwable t) {
      Registry.debug(t);
    }
  }
}