moveframeevent.java

来自「本程序是关于信用卡的一些使用方面的管理」· Java 代码 · 共 40 行

package card;
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;

class moveFrameEvent extends MouseMotionAdapter
{
  JFrame ownerframe=null;
  boolean m_bMovable=false;
  int m_prevx,m_prevy;
  public moveFrameEvent(JFrame aframe)
  {
     ownerframe = aframe;
   }
   public void mousePressed(MouseEvent mouseevent)
   {
     if(m_bMovable)
     {
       m_prevx = mouseevent.getX();
       m_prevy = mouseevent.getY();
     }
   }
 public void mouseMoved(MouseEvent mouseevent)
 {
   if(m_bMovable)
   {
     Point point = ownerframe.getLocation();
     ownerframe.setLocation((point.x + mouseevent.getX()) -  m_prevx, (point.y + mouseevent.getY()) - m_prevy);
   }
 }
 public void mouseReleased(MouseEvent mouseevent)
 {
   if(m_bMovable)
   {
     m_prevx = mouseevent.getX();
     m_prevy = mouseevent.getY();
   }
 }
}