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eina: added bounds_get api to Eina_Bezier 

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
This commit is contained in:
Subhransu Mohanty 2015-11-10 13:22:19 +09:00 committed by Cedric BAIL
parent 4983ac6d36
commit 07bb5483b4
3 changed files with 75 additions and 0 deletions
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40
src/lib/eina/eina_bezier.c
View File

@ -273,3 +273,43 @@ eina_bezier_split_at_length(const Eina_Bezier *b, double len,
t = eina_bezier_t_at(right, len);
_eina_bezier_split_left(right, t, left);
}
EAPI void
eina_bezier_bounds_get(const Eina_Bezier *b, double *x, double *y, double *w, double *h)
{
double xmin = b->start.x;
double xmax = b->start.x;
double ymin = b->start.y;
double ymax = b->start.y;
if (b->ctrl_start.x < xmin)
xmin = b->ctrl_start.x;
else if (b->ctrl_start.x > xmax)
xmax = b->ctrl_start.x;
if (b->ctrl_end.x < xmin)
xmin = b->ctrl_end.x;
else if (b->ctrl_end.x > xmax)
xmax = b->ctrl_end.x;
if (b->end.x < xmin)
xmin = b->end.x;
else if (b->end.x > xmax)
xmax = b->end.x;
if (b->ctrl_start.y < ymin)
ymin = b->ctrl_start.y;
else if (b->ctrl_start.y > ymax)
ymax = b->ctrl_start.y;
if (b->ctrl_end.y < ymin)
ymin = b->ctrl_end.y;
else if (b->ctrl_end.y > ymax)
ymax = b->ctrl_end.y;
if (b->end.y < ymin)
ymin = b->end.y;
else if (b->end.y > ymax)
ymax = b->end.y;
if (x) *x = xmin;
if (y) *y = ymin;
if (w) *w = xmax - xmin;
if (h) *h = ymax - ymin;
}

14
src/lib/eina/eina_bezier.h
View File

@ -143,4 +143,18 @@ EAPI double eina_bezier_angle_at(const Eina_Bezier *b, double t) EINA_ARG_NONNUL
*/
EAPI void eina_bezier_split_at_length(const Eina_Bezier *b, double len, Eina_Bezier *left, Eina_Bezier *right) EINA_ARG_NONNULL(1);
/**
* @brief get the bound of the the bezier.
*
* @param b The floating point bezier.
* @param x x coordinate of bounding box.
* @param y y coordinate of bounding box.
* @param w width of bounding box.
* @param h height of bounding box.
*
* @p b. No check is done on @p b.
* @since 1.16
*/
EAPI void eina_bezier_bounds_get(const Eina_Bezier *b, double *x, double *y, double *w, double *h) EINA_ARG_NONNULL(1);
#endif // EINA_BEZIER_H

21
src/tests/eina/eina_test_bezier.c
View File

@ -175,6 +175,26 @@ START_TEST(eina_bezier_test_split_at_length)
}
END_TEST
START_TEST(eina_bezier_test_bounds_get)
{
Eina_Bezier b;
double x, y, w, h;
eina_init();
eina_bezier_values_set(&b,
0, 0,
100, 0,
0, 100,
100, 100);
eina_bezier_bounds_get(&b, &x, &y, &w, &h);
fail_if(x !=0 || y!=0 || w !=100 || h !=100 );
eina_shutdown();
}
END_TEST
void
eina_test_bezier(TCase *tc)
{
@ -184,4 +204,5 @@ eina_test_bezier(TCase *tc)
tcase_add_test(tc, eina_bezier_test_t_at);
tcase_add_test(tc, eina_bezier_test_point_at);
tcase_add_test(tc, eina_bezier_test_split_at_length);
tcase_add_test(tc, eina_bezier_test_bounds_get);
}