static ObjectChange *
lifeline_create_change(Lifeline *lifeline, LifelineChangeType changetype, Point *clicked)
{
LifelineChange *vc;
vc = g_new0(LifelineChange,1);
vc->obj_change.apply = (ObjectChangeApplyFunc)lifeline_change_apply;
vc->obj_change.revert = (ObjectChangeRevertFunc)lifeline_change_revert;
vc->obj_change.free = (ObjectChangeFreeFunc)lifeline_change_free;
vc->type = changetype;
switch( vc->type )
{
case LIFELINE_CHANGE_ADD:
if (lifeline_point_above_mid (lifeline, clicked)) {
vc->east = connpointline_add_point(lifeline->northeast,clicked);
vc->west = connpointline_add_point(lifeline->northwest,clicked);
} else {
vc->east = connpointline_add_point(lifeline->southeast,clicked);
vc->west = connpointline_add_point(lifeline->southwest,clicked);
}
break;
case LIFELINE_CHANGE_DEL:
if (lifeline_point_above_mid (lifeline, clicked)) {
vc->east = connpointline_remove_point(lifeline->northeast,clicked);
vc->west = connpointline_remove_point(lifeline->northwest,clicked);
} else {
vc->east = connpointline_remove_point(lifeline->southeast,clicked);
vc->west = connpointline_remove_point(lifeline->southwest,clicked);
}
break;
case LIFELINE_CHANGE_INC:
vc->cp_distance_change = LIFELINE_CP_DISTANCE_INCREASE_FACTOR;
lifeline->cp_distance += vc->cp_distance_change;
break;
case LIFELINE_CHANGE_DEC:
vc->cp_distance_change = -1 * LIFELINE_CP_DISTANCE_INCREASE_FACTOR;
lifeline->cp_distance += vc->cp_distance_change;
break;
case LIFELINE_CHANGE_DEF:
vc->cp_distance_change = LIFELINE_CP_DEFAULT_DISTANCE*2 - lifeline->cp_distance;
lifeline->cp_distance += vc->cp_distance_change;
break;
}
lifeline_update_data(lifeline);
return (ObjectChange *)vc;
}
/*!
* \brief Add a connection point to the line
*
* \memberof Line
*/
static ObjectChange *
line_add_connpoint_callback(DiaObject *obj, Point *clicked, gpointer data)
{
ObjectChange *oc;
oc = connpointline_add_point(((Line *)obj)->cpl,clicked);
line_update_data((Line *)obj);
return oc;
}
static ObjectChange *
other_add_connpoint_callback(DiaObject *obj, Point *clicked, gpointer data)
{
ObjectChange *change;
ConnPointLine *cpl;
Other *other = (Other *)obj;
cpl = other_get_clicked_border(other,clicked);
change = connpointline_add_point(cpl, clicked);
other_update_data((Other *)obj,ANCHOR_MIDDLE, ANCHOR_MIDDLE);
return other_create_change(other,change,cpl);
}
