git-svn-id: svn://localhost/ardour2/branches/3.0@9843 d708f5d6-7413-0410-9779-e7cbd77b26cf
172 lines
3.6 KiB
C++
172 lines
3.6 KiB
C++
/*
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Copyright (C) 2011 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include <iomanip>
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#include <sstream>
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#include <boost/variant/static_visitor.hpp>
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#include "gui_object.h"
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#include "i18n.h"
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using std::string;
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const string GUIObjectState::xml_node_name (X_("GUIObjectState"));
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GUIObjectState::~GUIObjectState ()
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{
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clear_maps ();
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}
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void
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GUIObjectState::clear_maps ()
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{
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_property_maps.clear ();
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}
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class gos_string_vistor : public boost::static_visitor<> {
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public:
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gos_string_vistor (std::ostream& o)
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: stream (o) {}
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void operator() (const int64_t& i) {
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stream << i;
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}
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void operator() (const std::string& s) {
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stream << s;
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}
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private:
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std::ostream& stream;
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};
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std::string
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GUIObjectState::get_string (const std::string& id, const std::string& prop_name, bool* empty)
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{
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StringPropertyMap::iterator i = _property_maps.find (id);
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if (i == _property_maps.end()) {
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if (empty) {
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*empty = true;
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}
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return string();
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}
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const PropertyMap& pmap (i->second);
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PropertyMap::const_iterator p = pmap.find (prop_name);
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if (p == pmap.end()) {
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if (empty) {
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*empty = true;
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}
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return string();
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}
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std::stringstream ss;
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gos_string_vistor gsv (ss);
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boost::apply_visitor (gsv, p->second);
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if (empty) {
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*empty = false;
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}
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return ss.str ();
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}
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XMLNode&
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GUIObjectState::get_state () const
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{
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XMLNode* root = new XMLNode (xml_node_name);
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for (StringPropertyMap::const_iterator i = _property_maps.begin(); i != _property_maps.end(); ++i) {
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const PropertyMap& pmap (i->second);
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XMLNode* id_node = new XMLNode (X_("Object"));
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id_node->add_property ("id", i->first);
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for (PropertyMap::const_iterator p = pmap.begin(); p != pmap.end(); ++p) {
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std::stringstream ss;
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gos_string_vistor gsv (ss);
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boost::apply_visitor (gsv, p->second);
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id_node->add_property (p->first.c_str(), ss.str());
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}
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root->add_child_nocopy (*id_node);
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}
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return *root;
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}
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int
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GUIObjectState::set_state (const XMLNode& node)
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{
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if (node.name() != xml_node_name) {
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return -1;
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}
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clear_maps ();
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for (XMLNodeList::const_iterator i = node.children().begin(); i != node.children().end(); ++i) {
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if ((*i)->name() == X_("Object")) {
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XMLNode* child = (*i);
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const XMLProperty* idp = child->property (X_("id"));
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if (!idp) {
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continue;
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}
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string id (idp->value());
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for (XMLPropertyList::const_iterator p = child->properties().begin(); p != child->properties().end(); ++p) {
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/* note that this always sets the property with
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a string value, and so is not equivalent to
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a call made by the program that passed a
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scalar.
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*/
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if ((*p)->name() != X_("id")) {
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set (id, (*p)->name(), (*p)->value());
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}
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}
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}
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}
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return 0;
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}
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void
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GUIObjectState::load (const XMLNode& node)
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{
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(void) set_state (node);
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}
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GUIObjectState&
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GUIObjectState::operator= (const GUIObjectState& other)
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{
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_property_maps = other._property_maps;
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return *this;
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}
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