void
polyconn_init(PolyConn *poly, int num_points)
{
DiaObject *obj;
int i;
obj = &poly->object;
object_init(obj, num_points, 0);
poly->numpoints = num_points;
poly->points = g_malloc(num_points*sizeof(Point));
for (i=0;i<num_points;i++) {
obj->handles[i] = g_malloc(sizeof(Handle));
if (0 == i)
setup_handle(obj->handles[i], PC_HANDLE_START);
else if (i == num_points-1)
setup_handle(obj->handles[i], PC_HANDLE_END);
else
setup_handle(obj->handles[i], PC_HANDLE_CORNER);
}
polyconn_update_data(poly);
}
void
polyconn_copy(PolyConn *from, PolyConn *to)
{
int i;
DiaObject *toobj, *fromobj;
toobj = &to->object;
fromobj = &from->object;
object_copy(fromobj, toobj);
to->object.handles[0] = g_new(Handle,1);
*to->object.handles[0] = *from->object.handles[0];
for (i=1;i<toobj->num_handles-1;i++) {
to->object.handles[i] = g_malloc(sizeof(Handle));
setup_handle(to->object.handles[i], PC_HANDLE_CORNER);
}
to->object.handles[toobj->num_handles-1] = g_new(Handle,1);
*to->object.handles[toobj->num_handles-1] =
*from->object.handles[toobj->num_handles-1];
polyconn_set_points(to, from->numpoints, from->points);
memcpy(&to->extra_spacing,&from->extra_spacing,sizeof(to->extra_spacing));
polyconn_update_data(to);
}
void
polyconn_copy(PolyConn *from, PolyConn *to)
{
int i;
Object *toobj, *fromobj;
toobj = &to->object;
fromobj = &from->object;
object_copy(fromobj, toobj);
to->numpoints = from->numpoints;
to->points = g_malloc((to->numpoints)*sizeof(Point));
for (i=0;i<to->numpoints;i++) {
to->points[i] = from->points[i];
}
to->object.handles[0] = g_new(Handle,1);
*to->object.handles[0] = *from->object.handles[0];
for (i=1;i<to->numpoints-1;i++) {
to->object.handles[i] = g_malloc(sizeof(Handle));
setup_corner_handle(to->object.handles[i]);
}
to->object.handles[to->numpoints-1] = g_new(Handle,1);
*to->object.handles[to->numpoints-1] = *from->object.handles[to->numpoints-1];
polyconn_update_data(to);
}
void
polyconn_init(PolyConn *poly)
{
Object *obj;
obj = &poly->object;
object_init(obj, 2, 0);
poly->numpoints = 2;
poly->points = g_malloc(2*sizeof(Point));
poly->object.handles[0] = g_malloc(sizeof(Handle));
poly->object.handles[1] = g_malloc(sizeof(Handle));
obj->handles[0]->connect_type = HANDLE_CONNECTABLE;
obj->handles[0]->connected_to = NULL;
obj->handles[0]->type = HANDLE_MAJOR_CONTROL;
obj->handles[0]->id = HANDLE_MOVE_STARTPOINT;
obj->handles[1]->connect_type = HANDLE_CONNECTABLE;
obj->handles[1]->connected_to = NULL;
obj->handles[1]->type = HANDLE_MAJOR_CONTROL;
obj->handles[1]->id = HANDLE_MOVE_ENDPOINT;
polyconn_update_data(poly);
}
static void
polyline_update_data(Polyline *polyline)
{
PolyConn *poly = &polyline->poly;
DiaObject *obj = &poly->object;
PolyBBExtras *extra = &poly->extra_spacing;
Point gap_endpoints[2];
polyconn_update_data(&polyline->poly);
extra->start_trans = (polyline->line_width / 2.0);
extra->end_trans = (polyline->line_width / 2.0);
extra->middle_trans = (polyline->line_width / 2.0);
extra->start_long = (polyline->line_width / 2.0);
extra->end_long = (polyline->line_width / 2.0);
polyline_calculate_gap_endpoints(polyline, gap_endpoints);
polyline_exchange_gap_points(polyline, gap_endpoints);
polyconn_update_boundingbox(poly);
if (polyline->start_arrow.type != ARROW_NONE) {
Rectangle bbox;
Point move_arrow, move_line;
Point to = gap_endpoints[0];
Point from = poly->points[1];
calculate_arrow_point(&polyline->start_arrow, &to, &from,
&move_arrow, &move_line, polyline->line_width);
/* move them */
point_sub(&to, &move_arrow);
point_sub(&from, &move_line);
arrow_bbox (&polyline->start_arrow, polyline->line_width, &to, &from, &bbox);
rectangle_union (&obj->bounding_box, &bbox);
}
if (polyline->end_arrow.type != ARROW_NONE) {
Rectangle bbox;
int n = polyline->poly.numpoints;
Point move_arrow, move_line;
Point to = gap_endpoints[1];
Point from = poly->points[n-2];
calculate_arrow_point(&polyline->end_arrow, &to, &from,
&move_arrow, &move_line, polyline->line_width);
/* move them */
point_sub(&to, &move_arrow);
point_sub(&from, &move_line);
arrow_bbox (&polyline->end_arrow, polyline->line_width, &to, &from, &bbox);
rectangle_union (&obj->bounding_box, &bbox);
}
polyline_exchange_gap_points(polyline, gap_endpoints);
obj->position = poly->points[0];
}
void
polyconn_load(PolyConn *poly, ObjectNode obj_node, DiaContext *ctx) /* NOTE: Does object_init() */
{
int i;
AttributeNode attr;
DataNode data;
DiaObject *obj = &poly->object;
object_load(obj, obj_node, ctx);
attr = object_find_attribute(obj_node, "poly_points");
if (attr != NULL)
poly->numpoints = attribute_num_data(attr);
else
poly->numpoints = 0;
object_init(obj, poly->numpoints, 0);
data = attribute_first_data(attr);
poly->points = g_malloc(poly->numpoints*sizeof(Point));
for (i=0;i<poly->numpoints;i++) {
data_point(data, &poly->points[i], ctx);
data = data_next(data);
}
obj->handles[0] = g_malloc(sizeof(Handle));
obj->handles[0]->connect_type = HANDLE_CONNECTABLE;
obj->handles[0]->connected_to = NULL;
obj->handles[0]->type = HANDLE_MAJOR_CONTROL;
obj->handles[0]->id = HANDLE_MOVE_STARTPOINT;
obj->handles[poly->numpoints-1] = g_malloc(sizeof(Handle));
obj->handles[poly->numpoints-1]->connect_type = HANDLE_CONNECTABLE;
obj->handles[poly->numpoints-1]->connected_to = NULL;
obj->handles[poly->numpoints-1]->type = HANDLE_MAJOR_CONTROL;
obj->handles[poly->numpoints-1]->id = HANDLE_MOVE_ENDPOINT;
for (i=1;i<poly->numpoints-1;i++) {
obj->handles[i] = g_malloc(sizeof(Handle));
setup_handle(obj->handles[i], PC_HANDLE_CORNER);
}
polyconn_update_data(poly);
}
ObjectChange *
polyconn_remove_point(PolyConn *poly, int pos)
{
Handle *old_handle;
ConnectionPoint *connectionpoint;
Point old_point;
old_handle = poly->object.handles[pos];
old_point = poly->points[pos];
connectionpoint = old_handle->connected_to;
object_unconnect((DiaObject *)poly, old_handle);
remove_handle(poly, pos);
polyconn_update_data(poly);
return polyconn_create_change(poly, TYPE_REMOVE_POINT,
&old_point, pos, old_handle,
connectionpoint);
}
static void
polyline_select(Polyline *polyline, Point *clicked_point,
DiaRenderer *interactive_renderer)
{
polyconn_update_data(&polyline->poly);
}