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livetrax/libs/pbd/configuration_variable.cc

128 lines
3.1 KiB
C++

/*
* Copyright (C) 1999-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2016 Tim Mayberry <mojofunk@gmail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include "pbd/compose.h"
#include "pbd/configuration.h"
#include "pbd/configuration_variable.h"
#include "pbd/debug.h"
#if defined(_MSC_VER) && (_MSC_VER < 1800)
// MSVC only introduced std::strtof in VS2013
#define strtof(s, e) strtod(s, e)
#endif
using namespace std;
using namespace PBD;
void
ConfigVariableBase::add_to_node (XMLNode& node) const
{
const std::string v = get_as_string ();
DEBUG_TRACE (DEBUG::Configuration, string_compose ("Config variable %1 stored as [%2]\n", _name, v));
XMLNode* child = new XMLNode ("Option");
child->set_property ("name", _name);
child->set_property ("value", v);
node.add_child_nocopy (*child);
}
bool
ConfigVariableBase::set_from_node (XMLNode const & node)
{
if (node.name() == "Config" || node.name() == "Canvas" || node.name() == "UI") {
/* ardour.rc */
XMLNodeList nlist;
XMLNodeConstIterator niter;
XMLNode const * child;
std::string str;
nlist = node.children();
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
child = *niter;
if (child->name() == "Option") {
if (child->get_property ("name", str) && str == _name) {
if (child->get_property ("value", str)) {
set_from_string (str);
}
return true;
}
}
}
} else if (node.name() == "Options") {
/* session file */
XMLNodeList olist;
XMLNodeConstIterator oiter;
XMLNode* option;
std::string str;
olist = node.children();
for (oiter = olist.begin(); oiter != olist.end(); ++oiter) {
option = *oiter;
if (option->name() == _name) {
if (option->get_property ("val", str)) {
set_from_string (str);
return true;
}
}
}
}
return false;
}
void
ConfigVariableBase::notify ()
{
// placeholder for any debugging desired when a config variable is modified
}
void
ConfigVariableBase::miss ()
{
// placeholder for any debugging desired when a config variable
// is set but to the same value as it already has
}
std::map<std::string,Configuration::Metadata> Configuration::all_metadata;
Configuration::Metadata const *
Configuration::get_metadata (std::string const & name)
{
auto i = all_metadata.find (name);
if (i != all_metadata.end()) {
/* Only return actual, useful metadata */
if (!i->second.empty() && !i->second.front().empty()) {
return &i->second;
}
}
return 0;
}