122 lines
3.0 KiB
C++
122 lines
3.0 KiB
C++
/*
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Copyright (C) 1999-2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include "pbd/compose.h"
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#include "pbd/configuration_variable.h"
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#include "pbd/debug.h"
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#if defined(_MSC_VER) && (_MSC_VER < 1800)
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// MSVC only introduced std::strtof in VS2013
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#define strtof(s, e) strtod(s, e)
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#endif
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using namespace std;
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using namespace PBD;
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void
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ConfigVariableBase::add_to_node (XMLNode& node)
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{
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const std::string v = get_as_string ();
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DEBUG_TRACE (DEBUG::Configuration, string_compose ("Config variable %1 stored as [%2]\n", _name, v));
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XMLNode* child = new XMLNode ("Option");
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child->add_property ("name", _name);
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child->add_property ("value", v);
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node.add_child_nocopy (*child);
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}
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bool
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ConfigVariableBase::set_from_node (XMLNode const & node)
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{
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if (node.name() == "Config" || node.name() == "Canvas" || node.name() == "UI") {
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/* ardour.rc */
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const XMLProperty* prop;
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XMLNodeList nlist;
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XMLNodeConstIterator niter;
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XMLNode const * child;
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nlist = node.children();
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for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
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child = *niter;
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if (child->name() == "Option") {
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if ((prop = child->property ("name")) != 0) {
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if (prop->value() == _name) {
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if ((prop = child->property ("value")) != 0) {
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set_from_string (prop->value());
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return true;
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}
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}
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}
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}
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}
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} else if (node.name() == "Options") {
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/* session file */
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XMLNodeList olist;
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XMLNodeConstIterator oiter;
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XMLNode* option;
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const XMLProperty* opt_prop;
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olist = node.children();
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for (oiter = olist.begin(); oiter != olist.end(); ++oiter) {
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option = *oiter;
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if (option->name() == _name) {
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if ((opt_prop = option->property ("val")) != 0) {
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set_from_string (opt_prop->value());
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return true;
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}
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}
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}
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}
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return false;
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}
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void
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ConfigVariableBase::notify ()
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{
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// placeholder for any debugging desired when a config variable is modified
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}
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void
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ConfigVariableBase::miss ()
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{
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// placeholder for any debugging desired when a config variable
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// is set but to the same value as it already has
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}
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/* Specialisation of ConfigVariable to deal with float (-inf etc)
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* http://stackoverflow.com/questions/23374095/should-a-stringstream-parse-infinity-as-an-infinite-value
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*/
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template<> void
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ConfigVariable<float>::set_from_string (std::string const & s) {
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value = std::strtof (s.c_str(), NULL);
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}
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