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livetrax/gtk2_ardour/ui_config.h

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/*
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_ui_configuration_h__
#define __ardour_ui_configuration_h__
#include <sstream>
#include <ostream>
#include <iostream>
#include <pbd/stateful.h>
#include <pbd/xml++.h>
template<class T>
class UIConfigVariable
{
public:
UIConfigVariable (std::string str) : _name (str) {}
UIConfigVariable (std::string str, T val) : _name (str), value(val) {}
std::string name() const { return _name; }
bool set (T val) {
if (val == value) {
return false;
}
value = val;
return true;
}
T get() const {
return value;
}
void add_to_node (XMLNode& node) {
std::stringstream ss;
ss << std::hex;
ss.fill('0');
ss.width(8);
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) {
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 << std::hex;
ss << prop->value();
ss >> value;
return true;
}
}
}
}
}
return false;
}
protected:
T get_for_save() { return value; }
std::string _name;
T value;
};
class UIConfiguration : public PBD::Stateful
{
public:
UIConfiguration();
~UIConfiguration();
std::vector<UIConfigVariable<uint32_t> *> canvas_colors;
int load_state ();
int save_state ();
int load_defaults ();
int set_state (const XMLNode&);
XMLNode& get_state (void);
XMLNode& get_variables (std::string);
void set_variables (const XMLNode&);
void pack_canvasvars ();
sigc::signal<void,const char*> ParameterChanged;
#undef UI_CONFIG_VARIABLE
#undef CANVAS_VARIABLE
#define UI_CONFIG_VARIABLE(Type,var,name,val) UIConfigVariable<Type> var;
#define CANVAS_VARIABLE(var,name) UIConfigVariable<uint32_t> var;
#include "ui_config_vars.h"
#include "canvas_vars.h"
#undef UI_CONFIG_VARIABLE
#undef CANVAS_VARIABLE
private:
XMLNode& state ();
bool hack;
};
#endif /* __ardour_ui_configuration_h__ */