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Only save modified configuration variable to user config

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This allows to change default values when necessary.
This commit is contained in:
Robin Gareus 2025-09-11 23:29:29 +02:00
parent 4e71a78bc7
commit 52bd416845
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GPG key ID: A090BCE02CF57F04
3 changed files with 19 additions and 1 deletions
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4
libs/ardour/rc_configuration.cc
View file

@ -239,8 +239,10 @@ RCConfiguration::get_variables (std::string const & node_name) const
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
/* due to special case of PBD::ConfigVariable<std::string> we cannot use PBD::to_string<type> (value),
* but have to construct a ConfigVariable */
#define CONFIG_VARIABLE(type,var,Name,value) \
var.add_to_node (*node);
var.add_to_node_if_modified (*node, ConfigVariable<type> (Name, value).get_as_string ());
#define CONFIG_VARIABLE_SPECIAL(type,var,Name,value,mutator) \
var.add_to_node (*node);
#include "ardour/rc_configuration_vars.inc.h"

15
libs/pbd/configuration_variable.cc
View file

@ -43,6 +43,21 @@ ConfigVariableBase::add_to_node (XMLNode& node) const
node.add_child_nocopy (*child);
}
void
ConfigVariableBase::add_to_node_if_modified (XMLNode& node, std::string const& dflt) const
{
const std::string v = get_as_string ();
if (v == dflt) {
DEBUG_TRACE (DEBUG::Configuration, string_compose ("Config variable '%1' used default, not saved\n", _name));
return;
}
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)
{

1
libs/pbd/pbd/configuration_variable.h
View file

@ -34,6 +34,7 @@ class LIBPBD_API ConfigVariableBase {
std::string name () const { return _name; }
void add_to_node (XMLNode&) const;
void add_to_node_if_modified (XMLNode&, std::string const&) const;
bool set_from_node (XMLNode const &);
virtual std::string get_as_string () const = 0;