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#include "library.h"
void button(int s, int x, int y, int & a, string val[])
{
set_pen_color(color::black);
fill_rectangle(x-2,y-2,s+4,s+4);
set_pen_color(color::grey);
fill_rectangle(x,y,s,s);
move_to(x+(s/4.0),y+(0.75*s));
set_font_size(s);
set_pen_color(color::black);
write_string(val[a]);
a++;
}
void row_buttons(int s, int x, int y, int & a, string val[])
{
int i = 0;
while(i<4)
{
button(s,x,y,a,val);
x = x+1.5*s;
i++;
}
}
void block_buttons(int s, int x, int y, int & a, string val[])
{
double height_space = (4*y*1.5)/8.0;
int i = 0;
while(i<4)
{
row_buttons(s,x,y,a,val);
y = y+height_space;
i++;
}
}
void mouse(int s, int x, int y, int window_w, int window_h, string & num)
{
double height_space = (4*y*1.5)/8.0;
double x_space = window_w/15;
wait_for_mouse_click();
int const click_x = get_click_x();
int const click_y = get_click_y();
if(click_x >= x && click_x <= x+s+2)
{
if(click_y >= y && click_y <= y+s+4)
{
num = "7";
}
else if(click_y >= y+height_space && click_y <= y+(s+4)+height_space)
{
num = "4";
}
else if(click_y >= y+2*height_space && click_y <= y+(s+4)+2*height_space)
{
num = "1";
}
else if(click_y >= y+3*height_space && click_y <= y+(s+4)+3*height_space)
{
num = "C";
}
}
else if(click_x >= x+(s+4)+ x_space && click_x <= x+2*(s+4)+ x_space)
{
if(click_y >= y && click_y <= y+s+4)
{
num = "8";
}
else if(click_y >= y+height_space && click_y <= y+(s+4)+height_space)
{
num = "5";
}
else if(click_y >= y+2*height_space && click_y <= y+(s+4)+2*height_space)
{
num = "2";
}
else if(click_y >= y+3*height_space && click_y <= y+(s+4)+3*height_space)
{
num = "0";
}
}
else if(click_x >= x+2*(s+4)+ 2*x_space && click_x <= x+3*(s+4)+ 2*x_space)
{
if(click_y >= y && click_y <= y+s+4)
{
num = "9";
}
else if(click_y >= y+height_space && click_y <= y+(s+4)+height_space)
{
num = "6";
}
else if(click_y >= y+2*height_space && click_y <= y+(s+4)+2*height_space)
{
num = "3";
}
else if(click_y >= y+3*height_space && click_y <= y+(s+4)+3*height_space)
{
num = "=";
}
}
else if(click_x >= x+3*(s+4)+ 3*x_space && click_x <= x+4*(s+4)+ 3*x_space)
{
if(click_y >= y && click_y <= y+s+4)
{
num = "+";
}
else if(click_y >= y+height_space && click_y <= y+(s+4)+height_space)
{
num = "-";
}
else if(click_y >= y+2*height_space && click_y <= y+(s+4)+2*height_space)
{
num = "*";
}
else if(click_y >= y+3*height_space && click_y <= y+(s+4)+3*height_space)
{
num = "/";
}
}
}
void display(double s, double x, double y, double window_w, double window_h, string & num, int & mult)
{
double rect_height = s;
double height_space = (4*y*1.5)/8.0;
double rect_width = window_w - 2*x;
set_pen_color(color::black);
fill_rectangle(x,y-height_space,rect_width,rect_height);
set_pen_color(color::blue);
set_font_size(s);
move_to(x,y-height_space+s);
write_string(mult);
}
void click(int s, int x, int y, int window_w, int window_h, string & num, int & mult, int & op)
{
while(true)
{
display(s,x,y,window_w,window_h,num,mult);
mouse(s,x,y,window_w,window_h, num);
if(num == "9")
{
mult = mult*10 + 9;
}
else if(num == "8")
{
mult = mult*10 + 8;
}
else if(num == "7")
{
mult = mult*10 + 7;
}
else if(num == "6")
{
mult = mult*10 + 6;
}
else if(num == "5")
{
mult = mult*10 + 5;
}
else if(num == "4")
{
mult = mult*10 + 4;
}
else if(num == "3")
{
mult = mult*10 + 3;
}
else if(num == "2")
{
mult = mult*10 + 2;
}
else if(num == "1")
{
mult = mult*10 + 1;
}
else if(num == "0")
{
mult = mult*10 + 0;
}
else if(num == "C")
{
mult = 0;
num = "0";
int rect_height = s;
int height_space = (4*y*1.5)/8.0;
int rect_width = window_w - 2*x;
set_pen_color(color::black);
fill_rectangle(x,y-height_space,rect_width,rect_height);
}
else if(num == "+")
{
op = mult + op;
mult = op;
}
else if(num == "-")
{
if(op == 0)
{
op = mult - op;
}
else
{
op = -1*(mult - op);
}
mult = 0;
print(op);
}
else if(num == "=")
{
print(op);
}
}
}
void main()
{
string val[16] = {"7","8","9","+","4","5","6","-","1","2","3","*","C","0","=","/"};
int a = 0;
string num = "0";
int mult = 0;
int op = 0;
double window_w = 300;
double window_h = 400;
double x = window_w/25;
double y = window_h/4;
double s = window_w/6.0;
make_window(window_w,window_h);
block_buttons(s,x,y,a,val);
click(s,x,y,window_w,window_h,num,mult,op);
}
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