appmain.java

这是一个俄罗斯方块的JAVA实现

package com.sunfruit.draw;

import java.awt.Toolkit;
import javax.swing.SwingUtilities;
import java.awt.Dimension;
import javax.swing.UIManager;
import java.awt.Font;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class AppMain {
  boolean packFrame = false;

  /**
   * Construct and show the application.
   */
  public AppMain() {
    this.setUIFont();
    AppFrame frame = new AppFrame();
    // Validate frames that have preset sizes
    // Pack frames that have useful preferred size info, e.g. from their layout
    if (packFrame) {
      frame.pack();
    }
    else {
      frame.validate();
    }

    // Center the window
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();
    if (frameSize.height > screenSize.height) {
      frameSize.height = screenSize.height;
    }
    if (frameSize.width > screenSize.width) {
      frameSize.width = screenSize.width;
    }
    frame.setLocation( (screenSize.width - frameSize.width) / 2,
                      (screenSize.height - frameSize.height) / 2);
    frame.setVisible(true);
  }

  /**
   * Application entry point.
   *
   * @param args String[]
   */
  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        try {
          UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }
        catch (Exception exception) {
          exception.printStackTrace();
        }

        new AppMain();
      }
    });
  }

  //设置系统的默认字体
  private static void setUIFont()
  {
    Font myFont=new Font("Dialog",Font.PLAIN,12);
    javax.swing.plaf.FontUIResource fontRes = new javax.swing.plaf.FontUIResource(myFont);
    java.util.Enumeration keys = UIManager.getDefaults().keys();
    while (keys.hasMoreElements())
    {
      Object key = keys.nextElement();
      Object value = UIManager.get (key);
      if (value instanceof javax.swing.plaf.FontUIResource)
      {
        UIManager.put (key, fontRes);
      }
    }
  }

}