实现信息的隐藏和详细显示代码,Java代码库,德仔网

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【Java】实现信息的隐藏和详细显示
作者:lxw出山小草 / 发布于2012/3/6/ 665
import java.awt.BorderLayout;</div>
import java.awt.Component;</div>
import java.awt.Container;</div>
import java.awt.Font;</div>
import java.awt.Window;</div>
import java.awt.event.ActionEvent;</div>
import java.awt.event.ActionListener;</div>
<div></div>
import javax.swing.JButton;</div>
import javax.swing.JPanel;</div>
<div></div>
<div>public class MoreInfoPanel extends JPanel {</div>
<div> </div>
<div>  private JButton newsButton;</div>
<div>  public Component topComponent;</div>
<div>  protected SpinWidget spinWidget;</div>
<div>  public Component bottomComponent;</div>
<div></div>
<div>  public static final int SPIN_WIDGET_HEIGHT = 14;</div>
<div></div>
<div>  public MoreInfoPanel (Component tc, Component mic) {</div>
<div>    topComponent = tc;</div>
<div>    spinWidget = new SpinWidget( );</div>
<div>    bottomComponent = mic;</div>
<div>    newsButton();</div>
<div>    doMyLayout();</div>
<div>  }
<div>  private void newsButton(){</div>
<div>    newsButton = new JButton();</div>
<div>    newsButton.setFont(new Font("宋体",0,12));</div>
<div>    newsButton.setText("详细信息");</div>
<div>    newsButton.addActionListener(new ActionListener(){</div>
<div>      public void actionPerformed(ActionEvent arg0) {</div>
<div>        if(newsButton.getText().equals("详细信息")){</div>
<div>          spinWidget.setOpen(true);</div>
<div>          resetBottomVisibility();</div>
<div>          newsButton.setText("点击返回");</div>
<div>          return;</div>
<div>        }
<div>        if(newsButton.getText().equals("点击返回")){</div>
<div>          spinWidget.setOpen(false);</div>
<div>          resetBottomVisibility();</div>
<div>          newsButton.setText("详细信息");</div>
<div>          return;</div>
<div>        }
<div>       </div>
<div>      }
<div>    });</div>
<div>  }
<div></div>
<div>  protected void doMyLayout( ) {</div>
<div>    setLayout(new BorderLayout());</div>
<div>    add(topComponent,BorderLayout.NORTH);</div>
<div>    add(newsButton,BorderLayout.EAST);</div>
<div>    add(spinWidget,BorderLayout.SOUTH);</div>
<div>    add(bottomComponent,BorderLayout.CENTER);</div>
<div>    resetBottomVisibility();</div>
<div>  }
<div></div>
<div>  public void resetBottomVisibility() {</div>
<div>    if ((bottomComponent == null) ||</div>
<div>      (spinWidget == null))</div>
<div>      return;</div>
<div>    bottomComponent.setVisible (spinWidget.isOpen());</div>
<div>    revalidate();</div>
<div>    if (isShowing()) {</div>
<div>      Container ancestor = getTopLevelAncestor();</div>
<div>      if ((ancestor != null) && (ancestor instanceof Window))    </div>
<div>        ((Window) ancestor).pack();</div>
<div>      repaint();</div>
<div>    }
<div>  }
<div>   </div>
<div>  public void showBottom (boolean b) {</div>
<div>    spinWidget.setOpen(b);</div>
<div>  }
<div></div>
<div>   public boolean isBottomShowing ( ) {</div>
<div>     return spinWidget.isOpen( );</div>
<div>   }
<div>}
<div></div>
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