package jalview.gui;

import java.awt.Container;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;

/**
 * Boilerplate dialog class. Implements basic functionality necessary for model blocking/non-blocking dialogs
 * with an OK and Cancel button ready to add to the content pane.
 * @author jimp
 *
 */
public abstract class JalviewDialog extends JPanel
{

  protected JDialog frame;
  protected JButton ok = new JButton();
  protected JButton cancel = new JButton();
  boolean block=false;
  
  public void waitForInput()
  {
    if (!block)
    {
      new Thread(new Runnable()
      {

        public void run()
        {
          frame.show();
        }

      }).start();
    }
    else
    {
      frame.show();
    }
  }

  protected void initDialogFrame(Container content,
          boolean modal, boolean block, String title, int width, int height)
  {
    
    frame = new JDialog(Desktop.instance, true);
    frame.setTitle(title);
    if (Desktop.instance!=null)
    {
    Rectangle deskr = Desktop.instance.getBounds();
    frame.setBounds(new Rectangle((int) (deskr.getCenterX() - width/2),
            (int) (deskr.getCenterY() - height/2), width, height));
    } else {
      frame.setSize(width,height);
    }
    frame.setContentPane(content);
    this.block = block;
    
    ok.setOpaque(false);
    ok.setText("OK");
    ok.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        okPressed();
        closeDialog();
      }
    });
    cancel.setOpaque(false);
    cancel.setText("Cancel");
    cancel.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        cancelPressed();
        closeDialog();
      }
    });

  }
  /**
   * clean up and raise the 'dialog closed' event by calling raiseClosed
   */
  protected void closeDialog()
  {
    try
    {
      frame.dispose();
      raiseClosed();
    } catch (Exception ex)
    {
    }
  }
  
  protected abstract void raiseClosed();
  protected abstract void okPressed();
  protected abstract void cancelPressed();
  
}