use XML state to store processors in mixer (strips) and fixup crash caused by missing...

[ardour.git] / libs / ardour / ardour / configuration_variable.h

diff --git a/libs/ardour/ardour/configuration_variable.h b/libs/ardour/ardour/configuration_variable.h
index 4327fa69b1df9b195a24c708e4c958cf179d828d..a61283ecd0155bce6fa5ac0f3acf2150318f2bfc 100644 (file)
--- a/libs/ardour/ardour/configuration_variable.h
+++ b/libs/ardour/ardour/configuration_variable.h
@@ -1,8 +1,28 @@
+/*
+    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 <sstream>
 #include <ostream>
+#include <iostream>
 
 #include <pbd/xml++.h>
 
@@ -27,10 +47,13 @@ class ConfigVariableBase {
        virtual void add_to_node (XMLNode& node) = 0;
        virtual bool set_from_node (const XMLNode& node, Owner owner) = 0;
 
+       void show_stored_value (const std::string&);
+       static void set_show_stored_values (bool yn);
 
   protected:
        std::string _name;
        Owner _owner;
+       static bool show_stores;
 
        void notify ();
        void miss ();
@@ -43,7 +66,7 @@ class ConfigVariable : public ConfigVariableBase
        ConfigVariable (std::string str) : ConfigVariableBase (str) {}
        ConfigVariable (std::string str, T val) : ConfigVariableBase (str), value (val) {}
 
-       virtual bool set (T val, Owner owner) {
+       virtual bool set (T val, Owner owner = ARDOUR::ConfigVariableBase::Config) {
                if (val == value) {
                        miss ();
                        return false;
@@ -61,12 +84,13 @@ class ConfigVariable : public ConfigVariableBase
        void add_to_node (XMLNode& node) {
                std::stringstream ss;
                ss << value;
+               show_stored_value (ss.str());
                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") {