QHYun_practice-6

希望做一个简单的登录界面吧,一般的软件部都有一个欢迎界面嘛,我打算用Swing的组件搭一个,相对比较简单,估计就是用户名,密码,手机号和验证码之类的。

这部分的想法就这么多了,毕竟也不是主体,能看就行。我之前想做得炫酷一点的,比如登录窗的背景是动态的,但是用swing好像要实现有点麻烦哦,算了,就不折腾了,还是尽快往前走吧,不要太在意细节。
 初步的想法就是这样的:

 

看起来也比较简单。

首先把界面搭起来再说吧,现在用的是笔记本,但是回家写可能用台式机,两个还是区别很大的,不希望维护和更新的时候,为界面尺寸和适应的问题挠头,所以先想好界面和屏幕的自适应问题。

在QHEntrance下建一个QHgui的包,用来存放主界面相关的类。然后建一个QHLoginWindow类作为登录界面。继承JFrame.

package QHgui;
 
import QHBasic.SConst;
 
import javax.swing.*;
import java.awt.*;
import java.io.FileNotFoundException;
import java.io.IOException;
 
/**
 * <p> TODU </P>
 *
 * @author yeager
 * @Version V1.1.1.0
 * @date 2023/11/22 17:35
 */
public class QHLoginWindow extends JFrame {
    // filed
    Color color = new Color(27,67,103);
    Color color2 = new Color(27,67,103);
    private  static  final  int  Width = 1536;
    private  static  final  int Height = 864;
    //functions
    public QHLoginWindow(String text) throws FileNotFoundException, IOException {
        super(text, null);
        //获取屏幕尺寸
        setSize(400,300);
        getContentPane().setLayout(null);
 
        this.setType(JFrame.Type.UTILITY);
        this.setUndecorated(true);
 
        moveToCenter();
        //界面初始化完成后,重新界定界面和组件的大小
        nodifyFrameSize();
    }
 
    private void nodifyFrameSize()
    {
        int fraWidth = this.getWidth();//frame的宽
        int fraHeight = this.getHeight();//fra
        // me的高
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int screenWidth = screenSize.width;
        int screenHeight = screenSize.height;
 
        //重新设定界面尺寸大小
        int winWidth = fraWidth * screenWidth / Width;
        int winHeight = fraHeight *screenHeight / Height;
        this.setSize(winWidth, winHeight);
 
        float proportionW = screenWidth/fraWidth;
        float proportionH = screenHeight/fraHeight;
 
        this.modifyComponentSize(this, proportionW,proportionH);
    }
 
    public static void modifyComponentSize(JFrame frame,float proportionW,float proportionH){
 
        try
        {
            Component[] components = frame.getRootPane().getContentPane().getComponents();
            for(Component co:components)
            {
//                String a = co.getClass().getName();//获取类型名称
//                if(a.equals("javax.swing.JLabel"))
//                {
//                }
                float locX = co.getX() * proportionW;
                float locY = co.getY() * proportionH;
                float width = co.getWidth() * proportionW;
                float height = co.getHeight() * proportionH;
                co.setLocation((int)locX, (int)locY);
                co.setSize((int)width, (int)height);
                int size = (int)(co.getFont().getSize() * proportionH);
                Font font = new Font(co.getFont().getFontName(), co.getFont().getStyle(), size);
                co.setFont(font);
            }
        }
        catch (Exception e)
        {
            // TODO: handle exception
        }
    }
 
    /**
     * 移动到中间
     */
    private void moveToCenter() {
        Container myParent = getParent();
        if (myParent == null) {
            Dimension parentSize = Toolkit.getDefaultToolkit().getScreenSize();
            Point topLeft = new Point(0, 0);
            Dimension mySize = getSize();
            int x, y;
            if (parentSize.width > mySize.width)
                x = ((parentSize.width - mySize.width) / 2) + topLeft.x;
            else
                x = topLeft.x;
            if (parentSize.height > mySize.height)
                y = ((parentSize.height - mySize.height) / 2) + topLeft.y;
            else
                y = topLeft.y;
            setLocation(x, y);
        } else {
            Point topLeft = myParent.getLocationOnScreen();
            Dimension parentSize = myParent.getSize();
            Dimension mySize = getSize();
            int x, y;
            if (parentSize.width > mySize.width)
                x = ((parentSize.width - mySize.width) / 2) + topLeft.x;
            else
                x = topLeft.x;
            if (parentSize.height > mySize.height)
                y = ((parentSize.height - mySize.height) / 2) + topLeft.y;
            else
                y = topLeft.y;
            setLocation(x, y);
        }
    }
}

运行结果:

 

posted @ 2025-07-21 09:24  Wind_Swing_Dunn  阅读(3)  评论(0)    收藏  举报