tableheaderrenderer.java

一个OR Mapping 工具

package org.dbgen.view;

/******************************************************************************
 * Copyright (c) 1996, Software Technologies Corporation, All Rights Reserved *
 *                                                                            *
 * This program, and all the routines referenced herein, are the proprietary  *
 * properties and trade secrets of SOFTWARE TECHNOLOGIES CORPORATION.         *
 *                                                                            *
 * Except as provided for by license agreement, this program shall not be     *
 * duplicated, used or disclosed without the written consent, signed by an    *
 * officer of SOFTWARE TECHNOLOGIES CORPORATION.                              *
 *                                                                            *
 ******************************************************************************/

import java.awt.*;
import java.util.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;


/**
 *  <p>
 *  MainPort class manages interaction between
 *  all tabs in the main port screen
 *  <p>
 [* @see     related class ]
 * @author  <author>
 */
public class TableHeaderRenderer extends DefaultTableCellRenderer
{
  /* ********************************************************* */
  /* CONSTANTS                                                 */
  /* ********************************************************* */
  public final static String RCS_ID="$Id: TableHeaderRenderer.java,v 1.2 2000/07/12 08:01:21 tomkwong Exp $";

  /* ********************************************************* */
  /* PACKAGE STATIC DATA                                       */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PRIVATE STATIC DATA                                       */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PUBLIC DATA                                               */
  /* ********************************************************* */
  // use private keyword but supply public acess methods>

  /* ********************************************************* */
  /* PACKAGE DATA                                              */
  /* ********************************************************* */
  // use private keyword but supply access methods with no keyword

  /* ********************************************************* */
  /* PROTECTED DATA                                            */
  /* ********************************************************* */
  // use private keyword but supply protected access methods

  /* ********************************************************* */
  /* PRIVATE DATA                                              */
  /* ********************************************************* */
  // use private keyword and supply private access methods

  private JTableHeader header;
  private boolean pushed [];
  private BevelBorder border;

  /* ********************************************************* */
  /* PACKAGE METHODS                                           */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PROTECTED METHODS                                         */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PRIVATE METHODS                                           */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PUBLIC STATIC METHODS                                     */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PACKAGE STATIC METHODS                                    */
  /* ********************************************************* */

  /* ********************************************************* */
  /* PRIVATE STATIC METHODS                                    */
  /* ********************************************************* */

  /* ********************************************************* */
  /* INNER CLASSES                                             */
  /* ********************************************************* */

  class HeaderListener extends MouseAdapter
  {
    public void mousePressed (MouseEvent e)
    {
      int col = header.columnAtPoint(e.getPoint());
      push(col);
    }

    public void mouseReleased (MouseEvent e)
    {
      int col = header.columnAtPoint(e.getPoint());
      pop(col);
    }
  }


  /* ********************************************************* */
  /* CONSTRUCTORS                                              */
  /* ********************************************************* */

  public TableHeaderRenderer(TableModel model,
      JTableHeader header)
  {
    pushed = new boolean [model.getColumnCount ()];
    this.header = header;
    this.header.setBorder(LineBorder.createBlackLineBorder());
    this.header.setReorderingAllowed(false);

    setForeground (Color.black);
    setOpaque (true);
    setHorizontalAlignment(SwingConstants.CENTER);
    setFont( header.getFont() );

    // add listener to header
    header.addMouseListener(new HeaderListener());

    // Now set up the renderer to draw all headers.
    TableColumnModel tcm = header.getColumnModel();

    for (int i = 0; i < tcm.getColumnCount (); i++)
    {
      TableColumn tc = tcm.getColumn(i);
      tc.setHeaderRenderer(this);
    }
  }

  public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
    if (value == null) {
      setText("");
    } else {
      setText(value.toString());
    }

    if (pushed[column] == true) {
      border = new BevelBorder(BevelBorder.LOWERED);
    } else {
      border = new BevelBorder(BevelBorder.RAISED);
    }

    setBorder(border);

    return this;
  }

  /* ********************************************************* */
  /* UNIT TEST                                                 */
  /* ********************************************************* */
  public static void main(String[] args)
  {
  }

  public void pop (int col)
  {
    if (col > -1 )
    {
      pushed[col] = false;
      header.repaint();
    }
  }

  /* ********************************************************* */
  /* PUBLIC METHODS                                            */
  /* ********************************************************* */

  /**
   * <p>
   * Handle the message sent by the notifier;
   * <p>
   * @param     <parm>   <description of parameter>
   * @param     <parmN>  <description of parameter>
   [    * <p>
   * @return    <description of return value> ]
   [    * <p>
   * @execption <exception name> <description of when thrown> ]
   */

  public void push (int col)
  {
    if (col > -1 )
    {
      pushed[col] = true;
      header.repaint();
    }
  }
}