StatusBar.java :  » Development » jfritz-0.7.2 » de » moonflower » jfritz » Java Open Source

package de.moonflower.jfritz;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.JPanel;

public class StatusBar extends JPanel {

  private Vector<StatusBarPanel> leftPaneVector;
  private Vector<StatusBarPanel> centerPaneVector;  
  private Vector<StatusBarPanel> rightPaneVector;
  
  private JPanel iconPanel;
  private JPanel statusPanel;
  private JPanel mainPanel;
  
  /**
   * 
   */
  private static final long serialVersionUID = -3883780431076770249L;
  
  public StatusBar()
  {
    super();
    leftPaneVector = new Vector<StatusBarPanel>();
    centerPaneVector = new Vector<StatusBarPanel>();
    rightPaneVector = new Vector<StatusBarPanel>();
    statusPanel = new JPanel();
    mainPanel = new JPanel();
    iconPanel = new JPanel();
  }

  public void registerStatusIcon(StatusBarPanel panel)
  {
    if (!rightPaneVector.contains(panel))
    {
      rightPaneVector.add(panel);
    }
    Collections.sort((Vector<StatusBarPanel>)rightPaneVector);
    updateStatusBar();
  }
  
  public void unregisterStatusIcon(StatusBarPanel panel)
  {
    if ( rightPaneVector.contains(panel))
    {
      rightPaneVector.remove(panel);
    }
    updateStatusBar();
  }
  
  public void registerFixStatusPanel(StatusBarPanel panel)
  {
    if (!leftPaneVector.contains(panel))
    {
      leftPaneVector.add(panel);
    }
    Collections.sort((Vector<StatusBarPanel>)leftPaneVector);
    updateStatusBar();    
  }
  
  public void unregisterFixStatusPanel(StatusBarPanel panel)
  {
    if ( leftPaneVector.contains(panel))
    {
      leftPaneVector.remove(panel);
    }
    updateStatusBar();    
  }
  
  public void registerDynamicStatusPanel(StatusBarPanel panel)
  {
    if (!centerPaneVector.contains(panel))
    {
      centerPaneVector.add(panel);
    }
    Collections.sort((Vector<StatusBarPanel>)centerPaneVector);
    updateStatusBar();    
  }
  
  public void unregisterDynamicStatusPanel(StatusBarPanel panel)
  {
    if ( centerPaneVector.contains(panel))
    {
      centerPaneVector.remove(panel);
    }
    updateStatusBar();    
  }
  
  public void updateStatusBar()
  {
    this.removeAll();
    Enumeration<StatusBarPanel> en = leftPaneVector.elements();
    while ( en.hasMoreElements() )
    {
      statusPanel.add(en.nextElement());
    }
    
    en = centerPaneVector.elements();
    while ( en.hasMoreElements() )
    {
      mainPanel.add(en.nextElement());
    }

    en = rightPaneVector.elements();
    while ( en.hasMoreElements() )
    {
      iconPanel.add(en.nextElement());
    }
    
    this.setLayout(new BorderLayout());
    this.add(statusPanel, BorderLayout.WEST);
    this.add(mainPanel, BorderLayout.CENTER);
    this.add(iconPanel, BorderLayout.EAST);
    validate();
  }
  
  public void refresh()
  {
    boolean centerVisible = false;
    Enumeration en = centerPaneVector.elements();
    while ( en.hasMoreElements() )
    {
      StatusBarPanel panel = ((StatusBarPanel)en.nextElement());
      if ( panel.isVisible() )
      {
        centerVisible = true;
        break;
      }
    }
    
    mainPanel.setVisible(centerVisible);
    validate();
    repaint();
  }
}