graphdialog.java

用JAVA编写的可以输出直方图的程序代码。

package javax.swing;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.util.StringTokenizer;

public class GraphDialog extends JDialog {

    /**
     * @param args
     */
    public GraphDialog(JFrame frame)
    {
        super(frame,true);
        jbInit();
        addListeners();
        
        store();
        setTitle("TestDialog");
        this.setSize(new Dimension(300,200));
        pack();
    }
    public void jbInit()
    {
        GraphPanel p = new GraphPanel();
        p.setPreferredSize(new Dimension(200,200));
        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(p,BorderLayout.CENTER);
        
    }
    public void addListeners()
    {
        setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    }
    public void store()
    {
        
    }
    public static void main(String[] args) {
    
        JFrame f= new JFrame();
        f.setSize(new Dimension(300,500));
        GraphDialog d= new GraphDialog(f);
        d.show();
        System.exit(0);
    }
    class GraphPanel extends JPanel
    {
         int Len;
          int leftMargine=50;
          int rightMargine=20;
          int topMargine=80;
          int buttomMargine=20;
          int width,height,w,h;
          int minStickLength=3;  //坐标的短刻度
          int majStickLength=8;   //坐标的长刻度
          int minStick=10;
          int majStick;
          String title;
          String xTitle="股票代?";
          String xCode[];
          float yData[],xPce[];
          String MaxPce;
          boolean Mouse_Move;
          int x0,y0,X,Y,hx,hy;
          Label label[]=new Label[3];
          boolean mouse_move=false;
        GraphPanel()
        {
            super();
            jbInit();
        
        }
        public void jbInit()
        {

            width=600;
            height=400;
            w=width-leftMargine-rightMargine;
            h=height-topMargine-buttomMargine;
            setSize(width,height);
            Color bc=new Color(229,229,229);
            setBackground(bc);
            setLayout(null);
            for(int I=0;I<3;I++){
              label[I]=new Label();
              label[I].setForeground(Color.blue);
              this.add(label[I]);
              if(I==0)
                label[I].reshape(75,topMargine-25,60,15);
              if(I==1)
                label[I].reshape(230,topMargine-25,80,15);
              if(I==2)
                label[I].reshape(505,topMargine-25,60,15);
            }
            try{
              title=getTitle("200201");
            }
            catch(Exception e){
              System.out.println("Param itemmonth error!");
           System.out.println(e);
        }
            try{
              xCode=Subicode("00002,00014,00019,00023,00041,00102,00113,00114,00129,00132,00142,00146,00179,00203,00213,00223,00341");
              Len=xCode.length;
              hx=w/Len;
            }
            catch(Exception e){
              System.out.println("Param itemcode error!");
           System.out.println(e);
        }
            try{
              yData=Substr("272950,193950,1015600,142700,1618500,671650,2453300,630150,28375,1827660,7700,75700,27375,3375600,47500,17500,17500");
            }
            catch(Exception e){
              System.out.println("Param itemval error!");
           System.out.println(e);
        }
            try{
              xPce=Substr("219,156,817,114,2302,540,1974,507,22,1471,6,60,22,4717,38,114,14");
              MaxPce=getMaxVal(xPce);
              majStick=Integer.parseInt(MaxPce.substring(0,1))+2; //取最大pce的最大整数
            }
            catch(Exception e){
              System.out.println("Param itempce error!");
           System.out.println(e);
        }
            try{
              addMouseListener(new MouseAdapter(){
                public void mouseReleased(MouseEvent evt){//检测释放鼠标按键事件
                  setCursor(Cursor.getDefaultCursor());
                  Point ioc=evt.getPoint();
                  X=ioc.x;         //把当前座标传递给另一线程
                  Y=ioc.y;
                  //repaint();
                }
              });
           addMouseMotionListener(new MouseMotionAdapter(){
                public void mouseDragged(MouseEvent evt){
                  Point ioc=evt.getPoint();
                  if((ioc.x>leftMargine & ioc.x< w+leftMargine) & (ioc.y >topMargine & ioc.y< h+topMargine))
                    setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
                  else
                    setCursor(Cursor.getDefaultCursor());
                }
                public void mouseMoved(MouseEvent evt){   //检测鼠标移动事件
                  Point ioc=evt.getPoint();
                  X=ioc.x;
                  Y=ioc.y;
                  Graphics gten;
                  gten=getGraphics();
                  gten.setXORMode(Color.white);
                  gten.setColor(Color.blue);
                  int Axsis;


                  if(ioc.x >leftMargine & ioc.x< w+leftMargine & ioc.y>topMargine & ioc.y<h+topMargine){
                    try{
                       Axsis=(X-leftMargine)/hx;        //设定横座标范围
                        //在以下区域内，把鼠标当前横座标处的各种股票参数显示在相应的标签上
                         label[0].setText(xCode[Axsis]);
                         label[1].setText(Float.toString(yData[Axsis]));
                         float pcent=(xPce[Axsis]/100);
                         label[2].setText(Float.toString(pcent));
                    }
                    catch(Exception err){
                    }
                    try{
                      if(y0 >topMargine & y0< h+topMargine)
                        gten.drawLine(leftMargine,y0,w+leftMargine,y0);
                      if(Y >topMargine & Y< h+topMargine)
                        gten.drawLine(leftMargine,Y,w+leftMargine,Y);
                      if(x0 >leftMargine & x0< w+leftMargine)
                        gten.drawLine(x0,topMargine,x0,h+topMargine);
                      if(X >leftMargine & X< w+leftMargine)
                        gten.drawLine(X,topMargine,X,h+topMargine);
                      x0=X;
                      y0=Y;
                    }
                    finally{
                      gten.dispose();
                    }
                  }
                }
              });
        }
        catch(Exception e)
        {
          System.out.println("sellhis construct add mouse listener error!");
          System.out.println(e);
        }
          
        }
         public void paint(Graphics g){
                try{
                
                  g.drawString("股票代?:",20,topMargine-15);
                  g.drawString("?空成交金?:",150,topMargine-15);
                  g.drawString("?空成交金?占??空成交金?%:",320,topMargine-15);



                  g.drawRect(leftMargine,topMargine,w,h); //矩形方框

                  int x0,y0,x1,y1,dy;
                  int totalStick=(majStick-1)*minStick;
                  x0=leftMargine;
                  dy=h/((majStick-1)*minStick);
                  for(int I=1;I<=totalStick;I++){
                    y0=height-buttomMargine-I*dy;
                    y1=y0;
                    x1=x0-minStickLength;
                    if(I%minStick==0){
                      x1=x0-majStickLength;
                      g.drawString(""+((I)/minStick)+"0%",x1-25,y0+5);    //y轴刻度数字
                    }
                    g.drawLine(x0,y0,x1,y1);  //y轴刻度标
                  }
                  for(int I=0;I<Len;I++){
                    x0=leftMargine+I*hx;
                    hy=(int)((xPce[I]/100)*(h/((majStick-1)*10)));
                    y0=height-buttomMargine-hy;
                    float pcent=(xPce[I]/100);
                    Color pceCololr=new Color(153,0,153);
                    g.setColor(pceCololr);
                    g.setFont(new Font("Times New Roman",Font.PLAIN,11));
                    g.drawString(Float.toString(pcent),x0,y0-5);//在柱状图上绘制%
                    if(I%2==0)
                      g.setColor(Color.orange);
                    else
                      g.setColor(Color.red);
                    g.fillRect(x0,y0,hx,hy);  //绘制柱状图
                    //g.setColor(Color.red);  //绘制股票代码
                    //g.setFont(new Font("Times New Roman",Font.PLAIN,10));
                    //g.drawString(""+xCode[I],x0,height-topMargine+40);
                  }
                  Color titleColor=new Color(0,64,128);
                  g.setColor(titleColor);
                  g.setFont(new Font("monospaced",Font.BOLD,20));
                  g.drawString(title,190,40);
                }
                catch(Exception e){
                  System.out.println("sellhis paint error.");
                  System.out.println(e);
                }
              }
              public  float[] Substr(String str){
                int I=0;
                StringTokenizer st = new StringTokenizer(str,",");
                int len=st.countTokens();
                float[] val=new float[len];
                while(st.hasMoreTokens()) {
                  val[I]=Integer.parseInt(st.nextToken());
                  I++;
                }
                return val;
              }
              public  String[] Subicode(String str){
                int I=0;
                StringTokenizer st = new StringTokenizer(str,",");
                int len=st.countTokens();
                String[] val=new String[len];
                while(st.hasMoreTokens()) {
                  val[I]=st.nextToken();
                  I++;
                }
                return val;
              }
              public  String getMaxVal(float[] Maxval){
                int I;
                float result;
                result=Maxval[0];
                for(I=0;I<Maxval.length;I++){
                  if(result<Maxval[I])
                    result=Maxval[I];
                }
                return Float.toString(result);
              }
              public String getTitle(String str){
                String title;
                title=str.substring(0,4)+"年"+str.substring(4,6)+"月?空股票??";
                return title;
              }
              public int getLeftMargine(){
                return leftMargine;
              }
              public int getButtomMargine(){
                return buttomMargine;
              }
              public void setLeftMargine(int leftMargine){
                this.leftMargine=leftMargine;
              }
              public void setButtomMargine(int buttomMargine){
                this.buttomMargine=buttomMargine;
              }
    }

}