+/*
+ Copyright (C) 2000-2007 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.
+
+*/
+
#ifndef __ardour_configuration_variable_h__
#define __ardour_configuration_variable_h__
+#include <iostream>
#include <sstream>
-#include <ostream>
-#include <pbd/xml++.h>
+#include "pbd/xml++.h"
+#include "pbd/convert.h"
+#include "ardour/types.h"
+#include "ardour/utils.h"
namespace ARDOUR {
class ConfigVariableBase {
public:
- enum Owner {
- Default = 0x1,
- System = 0x2,
- Config = 0x4,
- Session = 0x8,
- Interface = 0x10
- };
-
- ConfigVariableBase (std::string str) : _name (str), _owner (Default) {}
+
+ ConfigVariableBase (std::string str) : _name (str) {}
virtual ~ConfigVariableBase() {}
- std::string name() const { return _name; }
- Owner owner() const { return _owner; }
+ std::string name () const { return _name; }
+ void add_to_node (XMLNode&);
+ bool set_from_node (XMLNode const &);
- virtual void add_to_node (XMLNode& node) = 0;
- virtual bool set_from_node (const XMLNode& node, Owner owner) = 0;
+ virtual std::string get_as_string () const = 0;
+ virtual void set_from_string (std::string const &) = 0;
protected:
std::string _name;
- Owner _owner;
+
+ void notify ();
+ void miss ();
};
template<class T>
class ConfigVariable : public ConfigVariableBase
{
public:
+
ConfigVariable (std::string str) : ConfigVariableBase (str) {}
ConfigVariable (std::string str, T val) : ConfigVariableBase (str), value (val) {}
- virtual bool set (T val, Owner owner) {
+ T get() const {
+ return value;
+ }
+
+ std::string get_as_string () const {
+ std::ostringstream ss;
+ ss << value;
+ return ss.str ();
+ }
+
+ virtual bool set (T val) {
if (val == value) {
+ miss ();
return false;
}
value = val;
- _owner = (ConfigVariableBase::Owner)(_owner |owner);
+ notify ();
return true;
}
- T get() const {
+ virtual void set_from_string (std::string const & s) {
+ std::stringstream ss;
+ ss << s;
+ ss >> value;
+ }
+
+ protected:
+ virtual T get_for_save() { return value; }
+ T value;
+};
+
+/** Specialisation of ConfigVariable for std::string to cope with whitespace properly */
+template<>
+class ConfigVariable<std::string> : public ConfigVariableBase
+{
+ public:
+
+ ConfigVariable (std::string str) : ConfigVariableBase (str) {}
+ ConfigVariable (std::string str, std::string val) : ConfigVariableBase (str), value (val) {}
+
+ std::string get() const {
return value;
}
- void add_to_node (XMLNode& node) {
- std::stringstream ss;
+ std::string get_as_string () const {
+ return value;
+ }
+
+ virtual bool set (std::string val) {
+ if (val == value) {
+ miss ();
+ return false;
+ }
+ value = val;
+ notify ();
+ return true;
+ }
+
+ virtual void set_from_string (std::string const & s) {
+ value = s;
+ }
+
+ protected:
+ virtual std::string get_for_save() { return value; }
+ std::string value;
+};
+
+template<>
+class ConfigVariable<bool> : public ConfigVariableBase
+{
+ public:
+
+ ConfigVariable (std::string str) : ConfigVariableBase (str), value (false) {}
+ ConfigVariable (std::string str, bool val) : ConfigVariableBase (str), value (val) {}
+
+ bool get() const {
+ return value;
+ }
+
+ std::string get_as_string () const {
+ std::ostringstream ss;
ss << value;
- XMLNode* child = new XMLNode ("Option");
- child->add_property ("name", _name);
- child->add_property ("value", ss.str());
- node.add_child_nocopy (*child);
- }
-
- bool set_from_node (const XMLNode& node, Owner owner) {
-
- if (node.name() == "Config") {
-
- /* ardour.rc */
-
- const XMLProperty* prop;
- XMLNodeList nlist;
- XMLNodeConstIterator niter;
- XMLNode* child;
-
- nlist = node.children();
-
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
-
- child = *niter;
-
- if (child->name() == "Option") {
- if ((prop = child->property ("name")) != 0) {
- if (prop->value() == _name) {
- if ((prop = child->property ("value")) != 0) {
- std::stringstream ss;
- ss << prop->value();
- ss >> value;
- _owner = (ConfigVariableBase::Owner)(_owner |owner);
- return true;
- }
- }
- }
- }
- }
-
- } else if (node.name() == "Options") {
-
- /* session file */
-
- XMLNodeList olist;
- XMLNodeConstIterator oiter;
- XMLNode* option;
- const XMLProperty* opt_prop;
-
- olist = node.children();
-
- for (oiter = olist.begin(); oiter != olist.end(); ++oiter) {
-
- option = *oiter;
-
- if (option->name() == _name) {
- if ((opt_prop = option->property ("val")) != 0) {
- std::stringstream ss;
- ss << opt_prop->value();
- ss >> value;
- _owner = (ConfigVariableBase::Owner)(_owner |owner);
- return true;
- }
- }
- }
+ return ss.str ();
+ }
+
+ virtual bool set (bool val) {
+ if (val == value) {
+ miss ();
+ return false;
}
+ value = val;
+ notify ();
+ return true;
+ }
- return false;
+ void set_from_string (std::string const & s) {
+ value = PBD::string_is_affirmative (s);
}
protected:
- virtual T get_for_save() { return value; }
- T value;
+ virtual bool get_for_save() { return value; }
+ bool value;
};
template<class T>
class ConfigVariableWithMutation : public ConfigVariable<T>
{
public:
- ConfigVariableWithMutation (std::string name, T val, T (*m)(T))
+ ConfigVariableWithMutation (std::string name, T val, T (*m)(T))
: ConfigVariable<T> (name, val), mutator (m) {}
- bool set (T val, ConfigVariableBase::Owner owner) {
+ bool set (T val) {
if (unmutated_value != val) {
unmutated_value = val;
- return ConfigVariable<T>::set (mutator (val), owner);
- }
+ return ConfigVariable<T>::set (mutator (val));
+ }
return false;
}
+ void set_from_string (std::string const & s) {
+ T v;
+ std::stringstream ss;
+ ss << s;
+ ss >> v;
+ set (v);
+ }
+
protected:
virtual T get_for_save() { return unmutated_value; }
T unmutated_value;
T (*mutator)(T);
};
+template<>
+class ConfigVariableWithMutation<std::string> : public ConfigVariable<std::string>
+{
+ public:
+ ConfigVariableWithMutation (std::string name, std::string val, std::string (*m)(std::string))
+ : ConfigVariable<std::string> (name, val), mutator (m) {}
+
+ bool set (std::string val) {
+ if (unmutated_value != val) {
+ unmutated_value = val;
+ return ConfigVariable<std::string>::set (mutator (val));
+ }
+ return false;
+ }
+
+ void set_from_string (std::string const & s) {
+ set (s);
+ }
+
+ protected:
+ virtual std::string get_for_save() { return unmutated_value; }
+ std::string unmutated_value;
+ std::string (*mutator)(std::string);
+};
+
}
#endif /* __ardour_configuration_variable_h__ */
projects / ardour.git / blobdiff