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Sourcecode: ardour version File versions

ui_config.h

/*
    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>

using namespace PBD;

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 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__ */


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