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// ------------------------------------------------------------------------
// generic_controller.cpp: General sources for control signals
// Copyright (C) 1999-2002,2005,2008 Kai Vehmanen
//
// Attributes:
// eca-style-version: 3
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// ------------------------------------------------------------------------
#include <cmath>
#include <iostream>
#include <string>
#include <kvu_numtostr.h>
#include <kvu_dbc.h>
#include "generic-controller.h"
#include "eca-chainop.h"
#include "eca-logger.h"
/* Debug controller source values */
// #define DEBUG_CONTROLLERS 1
#ifdef DEBUG_CONTROLLERS
#define DEBUG_CTRL_STATEMENT(x) x
#else
#define DEBUG_CTRL_STATEMENT(x) ((void)0)
#endif
GENERIC_CONTROLLER::GENERIC_CONTROLLER(CONTROLLER_SOURCE* src, OPERATOR* dobj, int par_id, double range_low, double range_high)
{
source = src;
target = dobj;
init_called_rep = false;
param_id_rep = par_id;
rangelow_rep = range_low;
rangehigh_rep = range_high;
last_value_pos_rep = -1;
}
void GENERIC_CONTROLLER::init(void)
{
source->init();
double init_value = target->get_parameter(param_id_rep);
init_value = (init_value - rangelow_rep) / (rangehigh_rep - rangelow_rep);
source->set_initial_value(init_value);
DEBUG_CTRL_STATEMENT(std::cerr << "generic-controller: init type '"
<< source->name() << "', init_value "
<< init_value << "." << std::endl);
init_called_rep = true;
last_value_pos_rep = -1;
}
CONTROLLER_SOURCE::parameter_t GENERIC_CONTROLLER::value(double pos)
{
// --------
DBC_REQUIRE(is_valid() == true);
// --------
double new_value = rangelow_rep +
(source->value(pos) * (rangehigh_rep - rangelow_rep));
DEBUG_CTRL_STATEMENT(std::cerr << "generic-controller: type '"
<< source->name() << "', pos_sec " << pos
<< ", source_value " << source->value(pos)
<< ", scaled_value " << new_value << "." << std::endl);
target->set_parameter(param_id_rep, new_value);
last_value_pos_rep = pos;
return new_value;
}
string GENERIC_CONTROLLER::status(void) const
{
if (is_valid() == true) {
double value = -1.0f;
if (last_value_pos_rep > 0) {
value = source->value(last_value_pos_rep);
}
return "Source \"" + source->name() +
"\" connected to target \"" +
target->name() + "\"." +
" Current source value is " +
kvu_numtostr(value) +
" and target " +
kvu_numtostr(target->get_parameter(param_id_rep)) + ".";
}
else {
return "Controller not valid.";
}
}
void GENERIC_CONTROLLER::assign_target(OPERATOR* obj)
{
target = obj;
}
void GENERIC_CONTROLLER::assign_source(CONTROLLER_SOURCE* obj)
{
if (init_called_rep == true &&
source != obj)
init();
source = obj;
}
void GENERIC_CONTROLLER::set_parameter(int param, CHAIN_OPERATOR::parameter_t v)
{
switch (param) {
case 1:
param_id_rep = static_cast<int>(v);
break;
case 2:
rangelow_rep = v;
break;
case 3:
rangehigh_rep = v;
break;
default:
source->set_parameter(param - 3, v);
}
}
CHAIN_OPERATOR::parameter_t GENERIC_CONTROLLER::get_parameter(int param) const
{
switch (param) {
case 1:
return static_cast<parameter_t>(param_id_rep);
case 2:
return rangelow_rep;
case 3:
return rangehigh_rep;
default:
return source->get_parameter(param - 3);
}
return 0.0;
}
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