location_analyze.java

Java写的画板程序

class location_analyze{
	static void analyze(int location[]){
		int xs=0,ys=0,xe=0,ye=0;
		   if(location[0]<location[2]&&location[1]<location[3]){
              	xs=location[0];
              	ys=location[1];
              	xe=location[2];
              	ye=location[3];
              	
              	
              }
              if(location[0]>location[2]&&location[1]<location[3]){
              	xs=location[2];
              	ys=location[1];
              	xe=location[0];
              	ye=location[3];
              }
              if(location[0]>location[2]&&location[1]>location[3]){
              	xs=location[2];
              	ys=location[3];
              	xe=location[0];
              	ye=location[1];
              }
              if(location[0]<location[2]&&location[1]>location[3]){
              	xs=location[0];
              	ys=location[3];
              	xe=location[2];
              	ye=location[1];
              }
              
             location[0]=xs;
             location[1]=ys;
             location[2]=xe-xs;
             location[3]=ye-ys;
		
	}
}