void drawbutton(int left,int top,int right,int bottom,char *caption,int charstyle,int charsize,int textcolor,int bkcolor,int border,int bordercolor)
{
 int text_x,text_y,i;
 text_x=left+(right-left-(charsize)*strlen(caption)*8)/2;
 text_y=(bottom+top)/2;
 setcolor(bordercolor);
 setfillstyle(0,bkcolor);
 settextstyle(charstyle,HORIZ_DIR,charsize);
// setusercharsize(3,7,3,7);
 for(i=0;i<border;i++)rectangle(left+i,top+i,right-i,bottom-i);  //draw border
 floodfill((left+right)/2,(top+bottom)/2,bordercolor);//fill ths inside of this button
 setcolor(textcolor);
 outtextxy(text_x,text_y,caption);//show caption
}

void showinfo(char* info)//show information
{
  setfillstyle(1,7);
  settextstyle(0,HORIZ_DIR,1);
  bar(15,435,625,460);
  setcolor(15);
  outtextxy(20,445,info);
}
void showcaption(char * caption)
{
 int text_x;
 text_x=160+(620-160-strlen(caption)*8)/2;
 setfillstyle(0,7);
 bar(170,45,610,58);
 settextstyle(0,HORIZ_DIR,1);
 setcolor(15);
 outtextxy(text_x,50,caption);
}
void drawframe(void)
{
 setbkcolor(1);
 clearviewport();
 setcolor(3);
 rectangle(10,10,630,470);
 line(160,20,160,430);
 outtextxy(50,50,"M-E-N-U");
 setcolor(14);
 line(20,60,150,60);
 line(180,60,600,60);
 //draw seven buttons below
 drawbutton(15,80,155,110,"Input/Modify Data",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,130,155,160,"Ave of Everyone",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,180,155,210,"Ave of Each Sub",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,230,155,260,"Top of Each Sub",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,280,155,310,"Sort of Each Sub",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,330,155,360,"Who Is fail ",0,1,YELLOW,CYAN,2,GREEN);
 drawbutton(15,380,155,410,"Exit",0,1,YELLOW,CYAN,2,GREEN);
 showinfo("Note: press DOWN UP to choose,ENTER to do it");
}

void fillblank(int x,int y,char * string,int textcolor,int bkcolor)//show string in blank(x,y)
{
  int text_x,text_y,i,j,k;
  int size=strlen(string),line;
  char str[10];
  //if size>=10 ,the string can't show in one line
  if(size%9==0)line=size/9;
  else line=size/9+1;
  if(line==1)text_x=165+x*75+(75-strlen(string)*8)/2;
  else text_x=165+x*75+2;
  setfillstyle(1,bkcolor);
  setcolor(textcolor);
  bar(166+x*75,72+y*32,164+x*75+75,70+y*32+32);
  for(i=0;i<line;i++)
  {
   k=0;
   for(j=i*9;(j<i*9+9)&&string[j];j++)str[k++]=string[j];
   str[k]='\0';
   text_y=71+y*32+(32/line)/2-4+i*(32/line);
   outtextxy(text_x,text_y,str);
  }

}
void drawchild_1(void)//show first child interface,
{
  int i,j;
  char score[10];
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<7;i++)
     line(165+i*75,71,165+i*75,424);
  for(i=0;i<12;i++)
     line(165,71+i*32,615,71+i*32);
  showinfo("Note: UP DOWN LEFT RIGHT---move ,0~9---input data ,F10---menu");
  showcaption("Input students' score of each subject");

  for(i=0;i<5;i++)//show names of subjects
   fillblank(i+1,0,SUBJECTS[i],14,1);
  for(i=0;i<10;i++)//show names of students
   fillblank(0,i+1,STUDENTS[i],14,1);
  for(i=0;i<10;i++)
   for(j=0;j<5;j++)//show score
    {
     sprintf(score,"%d",SCORE[i][j]);
     fillblank(j+1,i+1,score,15,1);
    }

}


void drawchild_2(void)//show second child interface,
{
  int i;
  float ave[10];
  char str[10];

  showinfo("Note: press DOWN UP to choose,ENTER to do it");
  showcaption("The average score of each student");
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<12;i++)
   line(170,70+i*30,610,70+i*30);
  line(330,70,330,400);
  setcolor(14);
  outtextxy(200,90,"Students' Name");
  outtextxy(350,90,"Average Score");
  setcolor(15);
  ave_student(SCORE,ave);
  for(i=0;i<10;i++)
  {
   sprintf(str,"%5.2f",ave[i]);
   outtextxy(180,111+i*30,STUDENTS[i]);
   outtextxy(370,111+i*30,str);
  }
}
void drawchild_3(void)
{
  int i;
  float ave[5];
  char str[10];
  showinfo("Note: press DOWN UP to choose,ENTER to do it");
  showcaption("The average of each subject");
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<7;i++)
   line(170,70+i*30,610,70+i*30);
  line(330,70,330,250);
  setcolor(14);
  outtextxy(200,90,"Subject");
  outtextxy(350,90,"Average Score");
  setcolor(15);
  ave_subject(SCORE,ave);
  for(i=0;i<5;i++)
  {
   sprintf(str,"%5.2f",ave[i]);
   outtextxy(180,111+i*30,SUBJECTS[i]);
   outtextxy(370,111+i*30,str);
  }

}

void drawchild_4(void)
{
  int i;
  int top_index[5];
  showinfo("Note: press DOWN UP to choose,ENTER to do it");
  showcaption("The top of each subject");
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<7;i++)
   line(170,70+i*30,610,70+i*30);
  line(330,70,330,250);
  setcolor(14);
  outtextxy(200,90,"Subject");
  outtextxy(350,90,"The Top's Name");
  setcolor(15);
  top_subject(SCORE,top_index);
  for(i=0;i<5;i++)
  {
   outtextxy(180,111+i*30,SUBJECTS[i]);
   outtextxy(370,111+i*30,STUDENTS[top_index[i]]);
  }

}

void drawchild_5(void)
{
  int i,j;
  int index[5];
  float total[5];
  char str[10];
  showinfo("Note: press DOWN UP to choose,ENTER to do it");
  showcaption("Sort of each subject (DES)");
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<7;i++)
   line(170,70+i*30,610,70+i*30);
  line(330,70,330,250);
  setcolor(14);
  outtextxy(200,90,"Subject");
  outtextxy(350,90,"Total of subjects");
  setcolor(15);
  sort_subject(SCORE,total,index);
  for(i=0;i<5;i++)
  {
   j=index[i];
   sprintf(str,"%d.",j+1);
   outtextxy(180,111+j*30,str);
   outtextxy(200,111+j*30,SUBJECTS[i]);
   sprintf(str,"%5.2f",total[i]);
   outtextxy(370,111+j*30,str);
  }

}


void drawchild_6(void)//show second child interface,
{
  int i,j,len;
  int name[10][5];
  showinfo("Note: press DOWN UP to choose,ENTER to do it");
  showcaption("The shutdent who is fail");
  setcolor(3);
  setfillstyle(0,7);
  bar(165,71,615,425);
  for(i=0;i<12;i++)
   line(170,70+i*30,610,70+i*30);
  line(330,70,330,400);
  setcolor(14);
  outtextxy(200,90,"Students' Name");
  outtextxy(350,90,"The Subject Not Pass");
  setcolor(15);
  find_fail(SCORE,name);
  for(i=0;i<10;i++)
  {
   len=0;
   outtextxy(180,111+i*30,STUDENTS[i]);
   for(j=0;j<5;j++)
   {
    if(name[i][j]==0)
    {
     outtextxy(335+len,111+i*30,SUBJECTS[j]);
     len+=strlen(SUBJECTS[j])*8+8;
     }
   }
  }
}