static void
_cpml_sanity_put_intersections_with_segment(gint i)
{
CpmlPrimitive primitive;
CpmlSegment segment;
CpmlPair pair;
/* Set primitive 1.1 and segment to 2
* so there is an intersection point in (1,1) */
cpml_segment_from_cairo(&segment, (cairo_path_t *) adg_test_path());
cpml_primitive_from_segment(&primitive, &segment);
cpml_segment_next(&segment);
switch (i) {
case 1:
cpml_primitive_put_intersections_with_segment(NULL, &segment, 2, &pair);
break;
case 2:
cpml_primitive_put_intersections_with_segment(&primitive, NULL, 2, &pair);
break;
case 3:
cpml_primitive_put_intersections_with_segment(&primitive, &segment, 2, NULL);
break;
default:
g_test_trap_assert_failed();
break;
}
}
static void
_adg_rescan(AdgPath *path)
{
AdgPathPrivate *data;
CpmlSegment segment;
CpmlPrimitive current, *last, *over;
data = path->data;
last = &data->last;
over = &data->over;
last->segment = NULL;
last->org = NULL;
last->data = NULL;
over->segment = NULL;
over->org = NULL;
over->data = NULL;
/* When no data is present, just bail out */
if (! cpml_segment_from_cairo(&segment, _adg_read_cairo_path(path)))
return;
do {
cpml_primitive_from_segment(¤t, &segment);
do {
cpml_primitive_copy(over, last);
cpml_primitive_copy(last, ¤t);
} while (cpml_primitive_next(¤t));
} while (cpml_segment_next(&segment));
}
static void
_cpml_method_put_intersections(void)
{
CpmlSegment segment;
CpmlPrimitive primitive1, primitive2;
CpmlPair pair[2];
/* Set primitive1 to 1.1 (first segment, first primitive) */
cpml_segment_from_cairo(&segment, (cairo_path_t *) adg_test_path());
cpml_primitive_from_segment(&primitive1, &segment);
/* Set primitive2 to 2.1 (second segment, first primitive) */
cpml_segment_next(&segment);
cpml_primitive_from_segment(&primitive2, &segment);
/* primitive1 (1.1) does not intersect primitive2 (2.1) */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 2, pair), ==, 0);
cpml_primitive_next(&primitive2);
/* primitive1 (1.1) intersects primitive2 (2.2) in (1, 1) */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 2, pair), ==, 1);
adg_assert_isapprox(pair[0].x, 1);
adg_assert_isapprox(pair[0].y, 1);
g_assert_cmpint(cpml_primitive_is_inside(&primitive1, pair), ==, 1);
g_assert_cmpint(cpml_primitive_is_inside(&primitive2, pair), ==, 1);
/* Check the intersection is not returned when not requested */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 0, pair), ==, 0);
cpml_primitive_next(&primitive1);
/* primitive1 (1.2) does not intersect primitive2 (2.2) */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 2, pair), ==, 0);
cpml_primitive_next(&primitive1);
/* primitive1 (1.3) does not intersect primitive2 (2.2) */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 2, pair), ==, 0);
cpml_primitive_next(&primitive1);
/* primitive1 (1.4) intersects primitive2 (2.2), but outside their boundaries */
g_assert_cmpuint(cpml_primitive_put_intersections(&primitive1, &primitive2, 2, pair), ==, 1);
adg_assert_isapprox(pair[0].x, 1);
adg_assert_isapprox(pair[0].y, -1);
g_assert_cmpint(cpml_primitive_is_inside(&primitive1, pair), ==, 0);
g_assert_cmpint(cpml_primitive_is_inside(&primitive2, pair), ==, 0);
}
static void
_cpml_method_get_length(void)
{
CpmlSegment segment;
CpmlPrimitive primitive;
cpml_segment_from_cairo(&segment, (cairo_path_t *) adg_test_path());
cpml_segment_next(&segment);
cpml_primitive_from_segment(&primitive, &segment);
adg_assert_isapprox(cpml_primitive_get_length(&primitive), 1);
cpml_primitive_next(&primitive);
adg_assert_isapprox(cpml_primitive_get_length(&primitive), 2);
}
static void
_cpml_method_put_intersections_with_segment(void)
{
CpmlSegment segment;
CpmlPrimitive primitive;
CpmlPair pair[4];
/* Set primitive to first segment, first primitive */
cpml_segment_from_cairo(&segment, (cairo_path_t *) adg_test_path());
cpml_primitive_from_segment(&primitive, &segment);
/* Set segment to the second segment */
cpml_segment_next(&segment);
/* primitive (1.1) intersects segment (2) in (1, 1) */
g_assert_cmpuint(cpml_primitive_put_intersections_with_segment(&primitive, &segment, 4, pair), ==, 1);
adg_assert_isapprox(pair[0].x, 1);
adg_assert_isapprox(pair[0].y, 1);
cpml_primitive_next(&primitive);
/* primitive (1.1) does not intersect segment (2) */
g_assert_cmpuint(cpml_primitive_put_intersections_with_segment(&primitive, &segment, 4, pair), ==, 0);
/* Set primitive to second segment, first primitive */
cpml_primitive_from_segment(&primitive, &segment);
/* Set segment to the first segment */
cpml_segment_reset(&segment);
/* primitive (2.1) intersects segment (1) in extrapolation.
* TODO: change this behavior! They must not intersect. */
g_assert_cmpuint(cpml_primitive_put_intersections_with_segment(&primitive, &segment, 4, pair), ==, 1);
adg_assert_isapprox(pair[0].x, 2);
adg_assert_isapprox(pair[0].y, 0);
cpml_primitive_next(&primitive);
/* primitive (2.2) wrongly intersects segment (1) */
g_assert_cmpuint(cpml_primitive_put_intersections_with_segment(&primitive, &segment, 4, pair), ==, 1);
adg_assert_isapprox(pair[0].x, 2);
adg_assert_isapprox(pair[0].y, 0);
}
static gboolean
_adg_append_operation(AdgPath *path, AdgAction action, ...)
{
AdgPathPrivate *data;
AdgOperation *operation;
va_list var_args;
data = path->data;
if (data->last.data == NULL) {
g_warning(_("%s: requested a '%s' operation on a path without current primitive"),
G_STRLOC, _adg_action_name(action));
return FALSE;
}
operation = &data->operation;
if (operation->action != ADG_ACTION_NONE) {
g_warning(_("%s: requested a '%s' operation while a '%s' operation was active"),
G_STRLOC, _adg_action_name(action),
_adg_action_name(operation->action));
/* XXX: http://dev.entidi.com/p/adg/issues/50/ */
return FALSE;
}
va_start(var_args, action);
switch (action) {
case ADG_ACTION_CHAMFER:
operation->data.chamfer.delta1 = va_arg(var_args, double);
operation->data.chamfer.delta2 = va_arg(var_args, double);
break;
case ADG_ACTION_FILLET:
operation->data.fillet.radius = va_arg(var_args, double);
break;
case ADG_ACTION_NONE:
va_end(var_args);
return TRUE;
default:
g_warning(_("%s: %d path operation not recognized"), G_STRLOC, action);
va_end(var_args);
return FALSE;
}
operation->action = action;
va_end(var_args);
if (data->last.data[0].header.type == CPML_CLOSE) {
/* Special case: an action with the close primitive should
* be resolved now by changing the close primitive to a
* line-to and using it as second operand and use the first
* primitive of the current segment as first operand */
guint length;
cairo_path_data_t *path_data;
CpmlSegment segment;
CpmlPrimitive current;
length = data->cairo.array->len;
/* Ensure the close path primitive is not the only data */
g_return_val_if_fail(length > 1, FALSE);
/* Allocate one more item once for all to accept the
* conversion from a close to line-to primitive */
data->cairo.array = g_array_set_size(data->cairo.array, length + 1);
path_data = (cairo_path_data_t *) data->cairo.array->data;
--data->cairo.array->len;
/* Set segment and current (the first primitive of segment) */
cpml_segment_from_cairo(&segment, _adg_read_cairo_path(path));
while (cpml_segment_next(&segment))
;
cpml_primitive_from_segment(¤t, &segment);
/* Convert close path to a line-to primitive */
++data->cairo.array->len;
path_data[length - 1].header.type = CPML_LINE;
path_data[length - 1].header.length = 2;
path_data[length] = *current.org;
data->last.segment = &segment;
data->last.org = &path_data[length - 2];
data->last.data = &path_data[length - 1];
_adg_do_action(path, action, ¤t);
}
return TRUE;
}