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/*
Copyright (C) 2000-2002 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#include <algorithm>
#include <sigc++/bind.h>
#include <pbd/error.h>
#include <ardour/route_group.h>
#include <ardour/audio_track.h>
#include <ardour/audio_diskstream.h>
#include <ardour/configuration.h>
using namespace ARDOUR;
using namespace sigc;
using namespace std;
RouteGroup::RouteGroup (Session& s, const string &n, Flag f)
: _session (s), _name (n), _flags (f)
{
}
void
RouteGroup::set_name (string str)
{
_name = str;
_session.set_dirty ();
FlagsChanged (0); /* EMIT SIGNAL */
}
int
RouteGroup::add (Route *r)
{
routes.push_back (r);
r->GoingAway.connect (sigc::bind (mem_fun (*this, &RouteGroup::remove_when_going_away), r));
_session.set_dirty ();
changed (); /* EMIT SIGNAL */
return 0;
}
void
RouteGroup::remove_when_going_away (Route *r)
{
remove (r);
}
int
RouteGroup::remove (Route *r)
{
list<Route *>::iterator i;
if ((i = find (routes.begin(), routes.end(), r)) != routes.end()) {
routes.erase (i);
_session.set_dirty ();
changed (); /* EMIT SIGNAL */
return 0;
}
return -1;
}
gain_t
RouteGroup::get_min_factor(gain_t factor)
{
gain_t g;
for (list<Route *>::iterator i = routes.begin(); i != routes.end(); i++) {
g = (*i)->gain();
if ( (g+g*factor) >= 0.0f)
continue;
if ( g <= 0.0000003f )
return 0.0f;
factor = 0.0000003f/g - 1.0f;
}
return factor;
}
gain_t
RouteGroup::get_max_factor(gain_t factor)
{
gain_t g;
for (list<Route *>::iterator i = routes.begin(); i != routes.end(); i++) {
g = (*i)->gain();
// if the current factor woulnd't raise this route above maximum
if ( (g+g*factor) <= 1.99526231f)
continue;
// if route gain is already at peak, return 0.0f factor
if (g>=1.99526231f)
return 0.0f;
// factor is calculated so that it would raise current route to max
factor = 1.99526231f/g - 1.0f;
}
return factor;
}
XMLNode&
RouteGroup::get_state (void)
{
char buf[32];
XMLNode *node = new XMLNode ("RouteGroup");
node->add_property ("name", _name);
snprintf (buf, sizeof (buf), "%" PRIu32, (uint32_t) _flags);
node->add_property ("flags", buf);
return *node;
}
int
RouteGroup::set_state (const XMLNode& node)
{
const XMLProperty *prop;
if ((prop = node.property ("name")) != 0) {
_name = prop->value();
}
if ((prop = node.property ("flags")) != 0) {
_flags = atoi (prop->value().c_str());
}
return 0;
}
void
RouteGroup::set_active (bool yn, void *src)
{
if (is_active() == yn) {
return;
}
if (yn) {
_flags |= Active;
} else {
_flags &= ~Active;
}
_session.set_dirty ();
FlagsChanged (src); /* EMIT SIGNAL */
}
void
RouteGroup::set_relative (bool yn, void *src)
{
if (is_relative() == yn) {
return;
}
if (yn) {
_flags |= Relative;
} else {
_flags &= ~Relative;
}
_session.set_dirty ();
FlagsChanged (src); /* EMIT SIGNAL */
}
void
RouteGroup::set_hidden (bool yn, void *src)
{
if (is_hidden() == yn) {
return;
}
if (yn) {
_flags |= Hidden;
if (Config->get_hiding_groups_deactivates_groups()) {
_flags &= ~Active;
}
} else {
_flags &= ~Hidden;
if (Config->get_hiding_groups_deactivates_groups()) {
_flags |= Active;
}
}
_session.set_dirty ();
FlagsChanged (src); /* EMIT SIGNAL */
}
void
RouteGroup::audio_track_group (set<AudioTrack*>& ats)
{
for (list<Route*>::iterator i = routes.begin(); i != routes.end(); ++i) {
AudioTrack* at = dynamic_cast<AudioTrack*>(*i);
if (at) {
ats.insert (at);
}
}
}
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