static gboolean
_adg_get_info(AdgADim *adim, CpmlVector vector[],
CpmlPair *center, gdouble *distance)
{
AdgDim *dim;
AdgADimPrivate *data;
AdgPoint *ref1_point, *ref2_point, *pos_point;
const CpmlPair *ref1, *ref2, *pos;
const CpmlPair *org1, *org2;
gdouble factor;
dim = (AdgDim *) adim;
data = adim->data;
ref1_point = adg_dim_get_ref1(dim);
ref2_point = adg_dim_get_ref2(dim);
pos_point = adg_dim_get_pos(dim);
/* Check if the needed points are all properly defined */
if (! adg_point_update(ref1_point) ||
! adg_point_update(ref2_point) ||
! adg_point_update(pos_point) ||
! adg_point_update(data->org1) ||
! adg_point_update(data->org2))
{
return FALSE;
}
ref1 = (CpmlPair *) ref1_point;
ref2 = (CpmlPair *) ref2_point;
pos = (CpmlPair *) pos_point;
org1 = (CpmlPair *) data->org1;
org2 = (CpmlPair *) data->org2;
/* Check if the given points have valid coordinates */
if (cpml_pair_equal(ref1, org1)) {
g_warning(_("%s: ref1 and org1 cannot be coincidents (%lf, %lf)"),
G_STRLOC, ref1->x, ref1->y);
return FALSE;
}
if (cpml_pair_equal(ref2, org2)) {
g_warning(_("%s: ref2 and org2 cannot be coincidents (%lf, %lf)"),
G_STRLOC, ref2->x, ref2->y);
return FALSE;
}
vector[0].x = ref1->x - org1->x;
vector[0].y = ref1->y - org1->y;
vector[2].x = ref2->x - org2->x;
vector[2].y = ref2->y - org2->y;
factor = vector[0].x * vector[2].y - vector[0].y * vector[2].x;
if (factor == 0) {
/* Parallel lines: hang with an error message */
g_warning(_("%s: trying to set an angular dimension on parallel lines"),
G_STRLOC);
return FALSE;
}
factor = ((ref1->y - ref2->y) * vector[2].x -
(ref1->x - ref2->x) * vector[2].y) / factor;
center->x = ref1->x + vector[0].x * factor;
center->y = ref1->y + vector[0].y * factor;
*distance = cpml_pair_distance(center, pos);
data->angle1 = cpml_vector_angle(&vector[0]);
data->angle2 = cpml_vector_angle(&vector[2]);
while (data->angle2 < data->angle1)
data->angle2 += G_PI * 2;
cpml_vector_from_angle(&vector[1], (data->angle1 + data->angle2) / 2);
return TRUE;
}
static void
_adg_arrange(AdgEntity *entity)
{
AdgADim *adim;
AdgDim *dim;
AdgADimPrivate *data;
AdgAlignment *quote;
const cairo_matrix_t *global, *local;
CpmlPair ref1, ref2, base1, base12, base2;
CpmlPair pair;
CpmlExtents extents;
AdgEntity *marker_entity;
if (_ADG_OLD_ENTITY_CLASS->arrange)
_ADG_OLD_ENTITY_CLASS->arrange(entity);
adim = (AdgADim *) entity;
if (! _adg_update_geometry(adim))
return;
dim = (AdgDim *) adim;
data = adim->data;
quote = adg_dim_get_quote(dim);
_adg_update_entities(adim);
if (data->cairo.path.status == CAIRO_STATUS_SUCCESS) {
AdgEntity *quote_entity = (AdgEntity *) quote;
adg_entity_set_global_map(quote_entity, &data->quote.global_map);
return;
}
global = adg_entity_get_global_matrix(entity);
local = adg_entity_get_local_matrix(entity);
extents.is_defined = FALSE;
cpml_pair_copy(&ref1, (CpmlPair *) adg_dim_get_ref1(dim));
cpml_pair_copy(&ref2, (CpmlPair *) adg_dim_get_ref2(dim));
cpml_pair_copy(&base1, &data->point.base1);
cpml_pair_copy(&base12, &data->point.base12);
cpml_pair_copy(&base2, &data->point.base2);
/* Apply the local matrix to the relevant points */
cpml_pair_transform(&ref1, local);
cpml_pair_transform(&ref2, local);
cpml_pair_transform(&base1, local);
cpml_pair_transform(&base12, local);
cpml_pair_transform(&base2, local);
/* Combine points and global shifts to build the path */
pair.x = ref1.x + data->shift.from1.x;
pair.y = ref1.y + data->shift.from1.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[6]);
pair.x = base1.x + data->shift.base1.x;
pair.y = base1.y + data->shift.base1.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[1]);
pair.x += data->shift.to1.x;
pair.y += data->shift.to1.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[8]);
pair.x = base12.x + data->shift.base12.x;
pair.y = base12.y + data->shift.base12.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[3]);
pair.x = ref2.x + data->shift.from2.x;
pair.y = ref2.y + data->shift.from2.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[10]);
pair.x = base2.x + data->shift.base2.x;
pair.y = base2.y + data->shift.base2.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[4]);
pair.x += data->shift.to2.x;
pair.y += data->shift.to2.y;
cpml_pair_to_cairo(&pair, &data->cairo.data[12]);
/* Play with header lengths to show or hide the extension lines */
if (data->has_extension1) {
data->cairo.data[7].header.length = data->has_extension2 ? 2 : 6;
} else {
data->cairo.data[2].header.length = data->has_extension2 ? 7 : 11;
}
data->cairo.path.status = CAIRO_STATUS_SUCCESS;
/* Arrange the quote */
if (quote != NULL) {
AdgEntity *quote_entity;
gdouble angle;
cairo_matrix_t map;
quote_entity = (AdgEntity *) quote;
angle = adg_dim_quote_angle(dim, (data->angle1 + data->angle2) / 2 + G_PI_2);
cpml_pair_from_cairo(&pair, &data->cairo.data[3]);
adg_alignment_set_factor_explicit(quote, 0.5, 0);
cairo_matrix_init_translate(&map, pair.x, pair.y);
cairo_matrix_rotate(&map, angle);
adg_entity_set_global_map(quote_entity, &map);
adg_entity_arrange(quote_entity);
cpml_extents_add(&extents, adg_entity_get_extents(quote_entity));
adg_matrix_copy(&data->quote.global_map, &map);
}
/* Arrange the trail */
if (data->trail != NULL) {
CpmlExtents trail_extents;
cpml_extents_copy(&trail_extents, adg_trail_get_extents(data->trail));
cpml_extents_transform(&trail_extents, global);
cpml_extents_add(&extents, &trail_extents);
} else {
_adg_dispose_markers(adim);
}
/* Arrange the markers */
if (data->marker1 != NULL) {
marker_entity = (AdgEntity *) data->marker1;
adg_marker_set_segment(data->marker1, data->trail, 1);
adg_entity_local_changed(marker_entity);
adg_entity_arrange(marker_entity);
cpml_extents_add(&extents, adg_entity_get_extents(marker_entity));
}
if (data->marker2 != NULL) {
marker_entity = (AdgEntity *) data->marker2;
adg_marker_set_segment(data->marker2, data->trail, 1);
adg_entity_local_changed(marker_entity);
adg_entity_arrange(marker_entity);
cpml_extents_add(&extents, adg_entity_get_extents(marker_entity));
}
adg_entity_set_extents(entity, &extents);
}
static void
_adg_property_ref2(void)
{
AdgDim *dim;
AdgModel *model;
AdgPoint *origin, *explicit_point, *model_point;
AdgPoint *ref2;
dim = ADG_DIM(adg_rdim_new());
model = ADG_MODEL(adg_path_new());
origin = adg_point_new();
explicit_point = adg_point_new();
model_point = adg_point_new();
adg_point_set_pair_explicit(origin, 0, 0);
adg_point_set_pair_explicit(explicit_point, 123, 321);
adg_model_set_named_pair(model, "named-pair", (CpmlPair *) explicit_point);
adg_point_set_pair_from_model(model_point, model, "named-pair");
/* Ensure ADG does not consider an explicit point equals to
* a point bound to a named pair with the same coordinates */
g_assert_false(adg_point_equal(explicit_point, model_point));
ref2 = adg_dim_get_ref2(dim);
g_assert_null(ref2);
/* Using the public APIs */
adg_dim_set_ref2_explicit(dim, 0, 0);
ref2 = adg_dim_get_ref2(dim);
g_assert_true(adg_point_equal(ref2, origin));
adg_dim_set_ref2(dim, NULL);
ref2 = adg_dim_get_ref2(dim);
g_assert_null(ref2);
adg_dim_set_ref2(dim, explicit_point);
ref2 = adg_dim_get_ref2(dim);
g_assert_true(adg_point_equal(ref2, explicit_point));
adg_dim_set_ref2_from_model(dim, model, "dummy");
ref2 = adg_dim_get_ref2(dim);
g_assert_nonnull(ref2);
adg_dim_set_ref2_from_model(dim, model, "named-pair");
ref2 = adg_dim_get_ref2(dim);
g_assert_true(adg_point_equal(ref2, model_point));
/* Using GObject property methods */
g_object_set(dim, "ref2", origin, NULL);
g_object_get(dim, "ref2", &ref2, NULL);
g_assert_true(adg_point_equal(ref2, origin));
adg_point_destroy(ref2);
g_object_set(dim, "ref2", NULL, NULL);
g_object_get(dim, "ref2", &ref2, NULL);
g_assert_null(ref2);
g_object_set(dim, "ref2", explicit_point, NULL);
g_object_get(dim, "ref2", &ref2, NULL);
g_assert_true(adg_point_equal(ref2, explicit_point));
adg_point_destroy(ref2);
adg_dim_set_ref2_from_model(dim, model, "dummy");
g_object_get(dim, "ref2", &ref2, NULL);
g_assert_nonnull(ref2);
adg_point_destroy(ref2);
g_object_set(dim, "ref2", model_point, NULL);
g_object_get(dim, "ref2", &ref2, NULL);
g_assert_true(adg_point_equal(ref2, model_point));
adg_point_destroy(ref2);
adg_point_destroy(origin);
adg_point_destroy(explicit_point);
adg_point_destroy(model_point);
adg_entity_destroy(ADG_ENTITY(dim));
g_object_unref(model);
}
