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Yes! This is very nice API!

develop
Kolan Sh 9 years ago
parent
commit
d61bd920c5
3 changed files with 60 additions and 22 deletions
  1. +2
    -1
      Polygon.c
  2. +2
    -1
      Rhomb.c
  3. +56
    -20
      main.c

+ 2
- 1
Polygon.c View File

@ -37,6 +37,7 @@ static Polygon* __Polygon_clone (const Polygon *this)
Polygon *poly = malloc (sizeof (Polygon));
memset (poly, 0, sizeof (Polygon));
Polygon_copy (poly, this);
poly->vtable = this->vtable;
return poly;
}
@ -54,7 +55,7 @@ void __Polygon_draw (const Polygon *this)
{
printf ("{%f;%f}, ", this->points[i].x, this->points[i].y);
}
printf ("{%f;%f}, ", this->points[0].x, this->points[0].y);
printf ("{%f;%f}\n", this->points[0].x, this->points[0].y);
}
double __Polygon_area (const Polygon *this)


+ 2
- 1
Rhomb.c View File

@ -31,6 +31,7 @@ static Rhomb* __Rhomb_clone (const Rhomb *this)
Rhomb *rhomb = malloc (sizeof (Rhomb));
memset (rhomb, 0, sizeof (Rhomb));
Rhomb_copy (rhomb, this);
rhomb->vtable = this->vtable;
return rhomb;
}
@ -67,7 +68,7 @@ static int __Rhomb_is_square (const Rhomb *this)
tmp2 = this->points[1].y - this->points[3].y;
diag2 = tmp1 * tmp1 + tmp2 * tmp2;
return (diag1 == diag2);
return (fabs (diag1 - diag2) < 1e-12);
}
/* public */


+ 56
- 20
main.c View File

@ -4,46 +4,82 @@
int main (void)
{
Polygon_destroy (NULL);
/* unsigned long i = 0;
unsigned long i = 0;
Figure *fig[3];
static struct point points1[] = {
{
3.1,
2.8
},
{
8.1,
-3.1
},
{
-1.88,
2.11
},
{
3.0,
4.1
},
};
static struct point points2[] = {
{
8.2,
4.2
},
{
1.1,
2.2
},
{
7.7,
5.6
},
{
-12.35,
-8.3
},
{
-11.13,
-1.1
},
{
2.3,
-8.5
},
};
fig[0] = (Figure *) Square_new (1);
fig[1] = (Figure *) ColoredSquare_new (2, 2);
((ColoredSquare *) fig[1])->vtable->set_color ((ColoredSquare *) fig[1], 5);
((Square *) fig[0])->vtable->resize ((Square *) fig[0], 2);
((Square *) fig[1])->vtable->resize ((Square *) fig[0], 3);
fig[0] = (Figure *) Polygon_new (points2, sizeof (points2) / sizeof (points2[0]));
fig[1] = (Figure *) Rhomb_new (points1);
fig[2] = fig[1]->vtable->clone (fig[1]);
((ColoredSquare *) fig[2])->vtable->set_color ((ColoredSquare *) fig[2], 3);
printf ("Is rhomb square? %d\n", Rhomb_is_square ((Rhomb *) fig[1]));
printf ("Max diag = %f\n", Polygon_max_diag ((Polygon *) fig[0]));
fig[2] = Figure_clone (fig[1]);
printf ("Area = %f\n", Figure_area (fig[2]));
for (i = 0; i < sizeof (fig) / sizeof (Figure *); i++)
{
puts ("---");
printf ("type = %s\n", fig[i]->vtable->type (fig[i]));
printf ("type = %s\n", Figure_type (fig[i]));
fig[i]->vtable->draw (fig[i]);
Figure_draw (fig[i]);
printf ("area(%lu) = %f\n",
(unsigned long) fig[i],
fig[i]->vtable->area (fig[i]));
printf ("diag_length(%lu) = %f\n",
(unsigned long) fig[i],
((Square *) fig[i])->vtable->diag_length ((Square *) fig[i]));
Figure_area (fig[i]));
}
puts ("---");
/*goto end;
err:
end:*/
/* for (i = 0; i < sizeof (fig) / sizeof (Figure *); i++)
for (i = 0; i < sizeof (fig) / sizeof (Figure *); i++)
{
fig[i]->vtable->destroy (fig[i]);
Figure_destroy (fig[i]);
}
*/
return 0;
}

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