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/*
Copyright (C) 2011 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.
*/
#include <iostream>
#include <iomanip>
#include <sstream>
#include <boost/variant/static_visitor.hpp>
#include "gui_object.h"
#include "i18n.h"
using std::string;
const string GUIObjectState::xml_node_name (X_("GUIObjectState"));
GUIObjectState::~GUIObjectState ()
{
clear_maps ();
}
void
GUIObjectState::clear_maps ()
{
_property_maps.clear ();
}
class gos_string_vistor : public boost::static_visitor<> {
public:
gos_string_vistor (std::ostream& o)
: stream (o) {}
void operator() (const int64_t& i) {
stream << i;
}
void operator() (const std::string& s) {
stream << s;
}
private:
std::ostream& stream;
};
std::string
GUIObjectState::get_string (const std::string& id, const std::string& prop_name, bool* empty)
{
StringPropertyMap::iterator i = _property_maps.find (id);
if (i == _property_maps.end()) {
if (empty) {
*empty = true;
}
return string();
}
const PropertyMap& pmap (i->second);
PropertyMap::const_iterator p = pmap.find (prop_name);
if (p == pmap.end()) {
if (empty) {
*empty = true;
}
return string();
}
std::stringstream ss;
gos_string_vistor gsv (ss);
boost::apply_visitor (gsv, p->second);
if (empty) {
*empty = false;
}
return ss.str ();
}
XMLNode&
GUIObjectState::get_state () const
{
XMLNode* root = new XMLNode (xml_node_name);
for (StringPropertyMap::const_iterator i = _property_maps.begin(); i != _property_maps.end(); ++i) {
const PropertyMap& pmap (i->second);
XMLNode* id_node = new XMLNode (X_("Object"));
id_node->add_property ("id", i->first);
for (PropertyMap::const_iterator p = pmap.begin(); p != pmap.end(); ++p) {
std::stringstream ss;
gos_string_vistor gsv (ss);
boost::apply_visitor (gsv, p->second);
id_node->add_property (p->first.c_str(), ss.str());
}
root->add_child_nocopy (*id_node);
}
return *root;
}
int
GUIObjectState::set_state (const XMLNode& node)
{
if (node.name() != xml_node_name) {
return -1;
}
clear_maps ();
for (XMLNodeList::const_iterator i = node.children().begin(); i != node.children().end(); ++i) {
if ((*i)->name() == X_("Object")) {
XMLNode* child = (*i);
const XMLProperty* idp = child->property (X_("id"));
if (!idp) {
continue;
}
string id (idp->value());
for (XMLPropertyList::const_iterator p = child->properties().begin(); p != child->properties().end(); ++p) {
/* note that this always sets the property with
a string value, and so is not equivalent to
a call made by the program that passed a
scalar.
*/
if ((*p)->name() != X_("id")) {
set (id, (*p)->name(), (*p)->value());
}
}
}
}
return 0;
}
void
GUIObjectState::load (const XMLNode& node)
{
(void) set_state (node);
}
GUIObjectState&
GUIObjectState::operator= (const GUIObjectState& other)
{
_property_maps = other._property_maps;
return *this;
}
/** @return begin iterator into our StringPropertyMap */
GUIObjectState::StringPropertyMap::const_iterator
GUIObjectState::begin () const
{
return _property_maps.begin ();
}
/** @return end iterator into our StringPropertyMap */
GUIObjectState::StringPropertyMap::const_iterator
GUIObjectState::end () const
{
return _property_maps.end ();
}
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