校园导航

[java]代码库
校园导航.zip(免费下载)[46 次下载]
package xiaoyuandaohang;
 
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
 
import javax.swing.AbstractButton;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
 
 
 
public class jiemian {
    static int selectstart=-1;
    static int selectend=-1;
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        point SimpleGraph=new point();
        //窗口界面大小
        int FrameWidth = 1120;
        int FrameHight = 700;
        //图形用户界面大小
        int pictureWitch=1100;
        int pictureHight=550;
        //图形用户界面离窗口界面的边界宽度
        int picturePanelLeftMargin = 10;
        int picturePanelTopMargin = 140;
        //新建一个窗口界面
        JFrame mainFrame = new JFrame("广州商学院导航系统");
        mainFrame.setSize(FrameWidth,FrameHight);
        mainFrame.setVisible(true);
        mainFrame.setLayout(null);
        mainFrame.setResizable(false);
         
        //新建一个图形用户界面
        JPanel picturePanel = new JPanel();
        picturePanel.setBounds(picturePanelLeftMargin,picturePanelTopMargin,pictureWitch,pictureHight);
        picturePanel.setBackground(Color.white);
        //在图形用户界面里添加图片
        ImageIcon picture = new ImageIcon("D:\\广州商学院导航图.png");
        JLabel pictureLabel=new JLabel(picture);
        picturePanel.add(pictureLabel);
        //在窗口界面添加图形用户界面
        mainFrame.add(picturePanel);
        //新建起点标签
        JLabel startlabel = new JLabel();
        startlabel.setText("起点：");
        startlabel.setBounds(100,50,100,50);
        mainFrame.add(startlabel);
        //新建终点标签
        JLabel endLabel=new JLabel();
        endLabel.setText("终点：");
        endLabel.setBounds(300,50,100,50);
        mainFrame.add(endLabel);
        //新建查询最短路径的按钮
        JButton inquiryButton = new JButton();
        inquiryButton.setText("查询");
        inquiryButton.setBounds(600,50,100,50);
        mainFrame.add(inquiryButton);
         
        //新建下拉菜单选择起点
        JComboBox<String> start=new JComboBox<String>();
        for(int i=0;i<SimpleGraph.placename.length;i++){
            start.addItem(SimpleGraph.placename[i]);
        }
        start.setBounds(150,60,100,30);
        mainFrame.add(start);
        //新建下拉菜单选择终点
        JComboBox<String> end=new JComboBox<String>();
        for(int i=0;i<SimpleGraph.placename.length;i++){
            end.addItem(SimpleGraph.placename[i]);
        }
        end.setBounds(350,60,100,30);
        mainFrame.add(end);
        mainFrame.setVisible(true);
         
        Graphics g=picturePanel.getGraphics();
        //获取在起点和终点的菜单中的选择
        start.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent evevt){
                selectstart=start.getSelectedIndex();
            }
        });
        end.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent evevt){
                selectend=end.getSelectedIndex();
            }
        });
         
        //调用另一个类的draw画出简易图。
        SimpleGraph.draw(g);
        //错误提示标签
        JLabel errorLabel=new JLabel();
        errorLabel.setBounds(800,50,300,50);
        mainFrame.add(errorLabel);
        //监听鼠标的点击
        inquiryButton.addMouseListener(new MouseAdapter(){
            public void mouseClicked(MouseEvent event){
                 //点击[查询]按钮要做的事情的代码
                if(selectstart==-1||selectend==-1)
                {
                    errorLabel.setText("未选择起点和终点!");
                }
                else if(selectstart==selectend)
                {
                    errorLabel.setText("选择的起点和终点相同,请重新选择!");
                }
                else
                {
                    SimpleGraph.draw(g);
                    //找到场所是第几个节点在传进去
                    SimpleGraph.drawShortestPath(SimpleGraph.place[selectstart], SimpleGraph.place[selectend],g);
                }
            }           
             
        });
         
    }
 
}
[代码运行效果截图]
[源代码打包下载]
校园导航.zip(免费下载)[46 次下载]
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