gtk2_ardour/ui_config.h

   1 /*
   2     Copyright (C) 2000-2007 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __ardour_ui_configuration_h__
  21 #define __ardour_ui_configuration_h__
  22
  23 #include <sstream>
  24 #include <ostream>
  25 #include <iostream>
  26
  27 #include "pbd/stateful.h"
  28 #include "pbd/xml++.h"
  29 #include "ardour/configuration_variable.h"
  30
  31 template<class T>
  32 class UIConfigVariable : public ARDOUR::ConfigVariableBase
  33 {
  34   public:
  35         UIConfigVariable (std::string str) : ARDOUR::ConfigVariableBase (str) {}
  36         UIConfigVariable (std::string str, T val) : ARDOUR::ConfigVariableBase (str), value (val) {}
  37
  38         bool set (T val) {
  39                 if (val == value) {
  40                         return false;
  41                 }
  42                 value = val;
  43                 return true;
  44         }
  45
  46         T get() const {
  47                 return value;
  48         }
  49
  50         std::string get_as_string () const {
  51                 std::stringstream ss;
  52                 ss << std::hex;
  53                 ss.fill('0');
  54                 ss.width(8);
  55                 ss << value;
  56                 return ss.str ();
  57         }
  58
  59         void set_from_string (std::string const & s) {
  60                 std::stringstream ss;
  61                 ss << std::hex;
  62                 ss << s;
  63                 ss >> value;
  64         }
  65
  66   protected:
  67         T get_for_save() { return value; }
  68         T value;
  69 };
  70
  71 class UIConfiguration : public PBD::Stateful
  72 {
  73   public:
  74         UIConfiguration();
  75         ~UIConfiguration();
  76
  77         std::vector<UIConfigVariable<uint32_t> *> canvas_colors;
  78
  79         int load_state ();
  80         int save_state ();
  81         int load_defaults ();
  82
  83         int set_state (const XMLNode&, int version);
  84         XMLNode& get_state (void);
  85         XMLNode& get_variables (std::string);
  86         void set_variables (const XMLNode&);
  87         void pack_canvasvars ();
  88
  89         sigc::signal<void,const char*> ParameterChanged;
  90
  91 #undef  UI_CONFIG_VARIABLE
  92 #undef  CANVAS_VARIABLE
  93 #define UI_CONFIG_VARIABLE(Type,var,name,val) UIConfigVariable<Type> var;
  94 #define CANVAS_VARIABLE(var,name) UIConfigVariable<uint32_t> var;
  95 #include "ui_config_vars.h"
  96 #include "canvas_vars.h"
  97 #undef  UI_CONFIG_VARIABLE
  98 #undef  CANVAS_VARIABLE
  99
 100   private:
 101         XMLNode& state ();
 102         bool hack;
 103 };
 104
 105 #endif /* __ardour_ui_configuration_h__ */
 106