histogram.java

用c编写的数据内部排序方法,可在窗口中选择多种排序方法,如快排,冒泡,折半插入等,还可以选择排序数据的个数,初态,控制等.

package main;

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.*;
import main.myClass.*;

public class Histogram extends JPanel implements Observer{
	myHashtable result;
	ResultPanel parent;
	int width,height,step,degree,size;
	myGraphics my=new myGraphics();
	boolean first;
	Point zero;
	
	public Histogram(ResultPanel rs){
		parent=rs;
		((Observable)rs).addObserver(this);
		step=60;
		setBackground(Color.white);
	}
	
	public void init(){}
	
	public void update(Observable ob,Object o){
		result=((ResultPanel)ob).result;
		size=result.size();
		repaint();
	}	
	
	public void update(Graphics g){
		paint(g);
	}
	
	public void paint(Graphics g){
		zero=new Point((getSize().width-step*(size+1))/2,250);
		g.setColor(Color.white);
		g.fillRect(0,0,getSize().width,getSize().height);
		g.setColor(Color.black);
		if(result!=null){
			long max=Long.parseLong(result.getValue(size-1));
			int length;
			my.drawArrow(g,zero.x,zero.y,getSize().width-zero.x,zero.y);
			my.drawArrow(g,zero.x,zero.y,zero.x,zero.y-220);
			int count=1;long max1=max;
			while((max1=max1/10)>=1) count++;
			int temp=(int)(max/10);
			for(int i=0;i<=10;i++){
				g.drawString(String.valueOf(temp*i),zero.x-7*count,zero.y-20*i);
				g.drawLine(zero.x,zero.y-20*i,zero.x+3,zero.y-20*i);
			}
			zero=new Point(zero.x+step-20,zero.y);
			for(int i=0;i<size;i++){
				String name=result.getKey(i);
				String time=result.getValue(i);
				length=(int)(200*Long.parseLong(time)/max);
				my.fillHistogram(g,parent.color[i],zero.x+step*i,zero.y,20,length,4);
				g.drawString(name,zero.x+step*i,zero.y+15);
				g.drawString(time,zero.x+step*i,zero.y-length-10);
			}
		}
		else{
			g.drawString("数据还没有处理完毕",getSize().width/2-50,getSize().height/2);
		}
	}
	
	public Dimension getPreferredSize(){
		return new Dimension(600,280);
	}
}