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livetrax/libs/ardour/configuration.cc

374 lines
9.1 KiB
C++

/*
Copyright (C) 1999-2006 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.
*/
#include <unistd.h>
#include <cstdio> /* for snprintf, grrr */
#include <glib.h>
#include <glib/gstdio.h> /* for g_stat() */
#include <glibmm/miscutils.h>
#include "pbd/failed_constructor.h"
#include "pbd/xml++.h"
#include "pbd/filesystem.h"
#include "pbd/file_utils.h"
#include "midi++/manager.h"
#include "ardour/ardour.h"
#include "ardour/configuration.h"
#include "ardour/audio_diskstream.h"
#include "ardour/control_protocol_manager.h"
#include "ardour/filesystem_paths.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace std;
using namespace PBD;
/* this is global so that we do not have to indirect through an object pointer
to reference it.
*/
namespace ARDOUR {
float speed_quietning = 0.251189; // -12dB reduction for ffwd or rewind
}
Configuration::Configuration ()
:
/* construct variables */
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
#define CONFIG_VARIABLE(Type,var,name,value) var (name,value),
#define CONFIG_VARIABLE_SPECIAL(Type,var,name,value,mutator) var (name,value,mutator),
#include "ardour/configuration_vars.h"
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
current_owner (ConfigVariableBase::Default)
{
_control_protocol_state = 0;
}
Configuration::~Configuration ()
{
}
void
Configuration::set_current_owner (ConfigVariableBase::Owner owner)
{
current_owner = owner;
}
int
Configuration::load_state ()
{
bool found = false;
sys::path system_rc_file;
struct stat statbuf;
/* load system configuration first */
if (find_file_in_search_path (ardour_search_path() + system_config_search_path(),
"ardour_system.rc", system_rc_file) )
{
XMLTree tree;
found = true;
string rcfile = system_rc_file.to_string();
/* stupid XML Parser hates empty files */
if (g_stat (rcfile.c_str(), &statbuf)) {
return -1;
}
if (statbuf.st_size != 0) {
cerr << string_compose (_("loading system configuration file %1"), rcfile) << endl;
if (!tree.read (rcfile.c_str())) {
error << string_compose(_("Ardour: cannot read system configuration file \"%1\""), rcfile) << endmsg;
return -1;
}
current_owner = ConfigVariableBase::System;
if (set_state (*tree.root())) {
error << string_compose(_("Ardour: system configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
return -1;
}
} else {
error << _("your system Ardour configuration file is empty. This probably means that there as an error installing Ardour") << endmsg;
}
}
/* now load configuration file for user */
sys::path user_rc_file;
if (find_file_in_search_path (ardour_search_path() + user_config_directory(),
"ardour.rc", user_rc_file))
{
XMLTree tree;
found = true;
string rcfile = user_rc_file.to_string();
/* stupid XML parser hates empty files */
if (g_stat (rcfile.c_str(), &statbuf)) {
return -1;
}
if (statbuf.st_size != 0) {
cerr << string_compose (_("loading user configuration file %1"), rcfile) << endl;
if (!tree.read (rcfile)) {
error << string_compose(_("Ardour: cannot read configuration file \"%1\""), rcfile) << endmsg;
return -1;
}
current_owner = ConfigVariableBase::Config;
if (set_state (*tree.root())) {
error << string_compose(_("Ardour: user configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
return -1;
}
} else {
warning << _("your Ardour configuration file is empty. This is not normal.") << endmsg;
}
}
if (!found)
error << "Ardour: could not find configuration file (ardour.rc), canvas will look broken." << endmsg;
return 0;
}
int
Configuration::save_state()
{
XMLTree tree;
try
{
sys::create_directories (user_config_directory ());
}
catch (const sys::filesystem_error& ex)
{
error << "Could not create user configuration directory" << endmsg;
return -1;
}
sys::path rcfile_path(user_config_directory());
rcfile_path /= "ardour.rc";
const string rcfile = rcfile_path.to_string();
// this test seems bogus?
if (rcfile.length()) {
tree.set_root (&get_state());
if (!tree.write (rcfile.c_str())){
error << string_compose (_("Config file %1 not saved"), rcfile) << endmsg;
return -1;
}
}
return 0;
}
void
Configuration::add_instant_xml(XMLNode& node)
{
Stateful::add_instant_xml (node, user_config_directory ());
}
XMLNode*
Configuration::instant_xml(const string& node_name)
{
return Stateful::instant_xml (node_name, user_config_directory ());
}
bool
Configuration::save_config_options_predicate (ConfigVariableBase::Owner owner)
{
/* only save things that were in the config file to start with */
return owner & ConfigVariableBase::Config;
}
XMLNode&
Configuration::get_state ()
{
XMLNode* root;
LocaleGuard lg (X_("POSIX"));
root = new XMLNode("Ardour");
MIDI::Manager::PortMap::const_iterator i;
const MIDI::Manager::PortMap& ports = MIDI::Manager::instance()->get_midi_ports();
for (i = ports.begin(); i != ports.end(); ++i) {
root->add_child_nocopy(i->second->get_state());
}
root->add_child_nocopy (get_variables (sigc::mem_fun (*this, &Configuration::save_config_options_predicate), "Config"));
if (_extra_xml) {
root->add_child_copy (*_extra_xml);
}
root->add_child_nocopy (ControlProtocolManager::instance().get_state());
return *root;
}
XMLNode&
Configuration::get_variables (sigc::slot<bool,ConfigVariableBase::Owner> predicate, std::string which_node)
{
XMLNode* node;
LocaleGuard lg (X_("POSIX"));
node = new XMLNode(which_node);
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
#define CONFIG_VARIABLE(type,var,Name,value) \
if (node->name() == "Config") { if (predicate (var.owner())) { var.add_to_node (*node); }}
#define CONFIG_VARIABLE_SPECIAL(type,var,Name,value,mutator) \
if (node->name() == "Config") { if (predicate (var.owner())) { var.add_to_node (*node); }}
#include "ardour/configuration_vars.h"
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
return *node;
}
int
Configuration::set_state (const XMLNode& root)
{
if (root.name() != "Ardour") {
return -1;
}
XMLNodeList nlist = root.children();
XMLNodeConstIterator niter;
XMLNode *node;
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
node = *niter;
if (node->name() == "MIDI-port") {
try {
MIDI::Port::Descriptor desc (*node);
map<string,XMLNode>::iterator x;
if ((x = midi_ports.find (desc.tag)) != midi_ports.end()) {
midi_ports.erase (x);
}
midi_ports.insert (pair<string,XMLNode>(desc.tag,*node));
}
catch (failed_constructor& err) {
warning << _("ill-formed MIDI port specification in ardour rcfile (ignored)") << endmsg;
}
} else if (node->name() == "Config") {
set_variables (*node, ConfigVariableBase::Config);
} else if (node->name() == "Extra") {
_extra_xml = new XMLNode (*node);
} else if (node->name() == ControlProtocolManager::state_node_name) {
_control_protocol_state = new XMLNode (*node);
}
}
Diskstream::set_disk_io_chunk_frames (minimum_disk_io_bytes.get() / sizeof (Sample));
return 0;
}
void
Configuration::set_variables (const XMLNode& node, ConfigVariableBase::Owner owner)
{
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
#define CONFIG_VARIABLE(type,var,name,value) \
if (var.set_from_node (node, owner)) { \
ParameterChanged (name); \
}
#define CONFIG_VARIABLE_SPECIAL(type,var,name,value,mutator) \
if (var.set_from_node (node, owner)) { \
ParameterChanged (name); \
}
#include "ardour/configuration_vars.h"
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
}
void
Configuration::map_parameters (sigc::slot<void,const char*> theSlot)
{
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
#define CONFIG_VARIABLE(type,var,name,value) theSlot (name);
#define CONFIG_VARIABLE_SPECIAL(type,var,name,value,mutator) theSlot (name);
#include "ardour/configuration_vars.h"
#undef CONFIG_VARIABLE
#undef CONFIG_VARIABLE_SPECIAL
}
bool ConfigVariableBase::show_stores = false;
void
ConfigVariableBase::set_show_stored_values (bool yn)
{
show_stores = yn;
}
void
ConfigVariableBase::show_stored_value (const string& str)
{
if (show_stores) {
cerr << "Config variable " << _name << " stored as " << str << endl;
}
}
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
}