Java开发网 Java开发网
注册 | 登录 | 帮助 | 搜索 | 排行榜 | 发帖统计  

您没有登录

» Java开发网 » Java GUI 设计 » Swing  

按打印兼容模式打印这个话题 打印话题    把这个话题寄给朋友 寄给朋友    该主题的所有更新都将Email到你的邮箱 订阅主题
flat modethreaded modego to previous topicgo to next topicgo to back
作者 paint
useridmyzct





发贴: 1
积分: 0
于 2008-04-19 11:50 user profilesend a private message to usersearch all posts byselect and copy to clipboard. 
ie only, sorry for netscape users:-)add this post to my favorite list
我做了一个窗体,在上面我放了一重写了paintComponent方法的JPanel 如下:
public class JBackPanel extends JPanel {
public Graphics gh;
protected void paintComponent(Graphics g) {
super.paintComponentPresent;Image im = Toolkit.getDefaultToolkit().getImage(
        "backImage//backimage.jpg");
g.drawImage(im, 0, 0, this.getWidth(), this.getHeight(), this);

}

}
在这个Panel 我又放了一个继承JPanel的panel用来显示相片,代码如下:
public class PicturePanel extends JPanel {
private boolean isHasPicture = false;
public void clearPicture() {
this.repaint();
   t his.isHasPicture = false;
    }
public void loadPicture(String FileName) {
try {
Image im = Toolkit.getDefaultToolkit().getImage(FileName);
this.getGraphics().drawImage(im, 0, 0,80,80, this);
      } catch (Exception e) {
        System.out.println(e.getMessage());
        this.isHasPicture = false;
      }
    }
public savePicture(){
//
}
}
当我调用上面的pictureload(String FileName);方法时无法显示相片!请指教.




flat modethreaded modego to previous topicgo to next topicgo to back
  已读帖子
  新的帖子
  被删除的帖子
Jump to the top of page

   Powered by Jute Powerful Forum® Version Jute 1.5.6 Ent
Copyright © 2002-2021 Cjsdn Team. All Righits Reserved. 闽ICP备05005120号-1
客服电话 18559299278    客服信箱 714923@qq.com    客服QQ 714923