159 lines
3.6 KiB
C++
159 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 <sstream>
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#include "gui_object.h"
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#include "pbd/i18n.h"
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using std::string;
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/*static*/ XMLNode *
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GUIObjectState::get_node (const XMLNode* parent, const string& id)
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{
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XMLNodeList const & children = parent->children ();
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for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
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if ((*i)->name() != X_("Object")) {
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continue;
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}
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if ((*i)->has_property_with_value(X_("id"), id)) {
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return *i;
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}
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}
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return 0;
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}
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/*static*/ XMLNode *
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GUIObjectState::get_or_add_node (XMLNode* parent, const string& id)
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{
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XMLNode* child = get_node (parent, id);
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if (!child) {
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child = new XMLNode (X_("Object"));
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child->add_property (X_("id"), id);
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parent->add_child_nocopy (*child);
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}
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return child;
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}
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const string GUIObjectState::xml_node_name (X_("GUIObjectState"));
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GUIObjectState::GUIObjectState ()
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: _state (X_("GUIObjectState"))
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{
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}
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XMLNode *
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GUIObjectState::get_or_add_node (const string& id)
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{
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std::map <std::string, XMLNode*>::iterator i = object_map.find (id);
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if (i != object_map.end()) {
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return i->second;
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}
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//assert (get_node (&_state, id) == 0); // XXX performance penalty due to get_node()
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XMLNode* child = new XMLNode (X_("Object"));
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child->add_property (X_("id"), id);
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_state.add_child_nocopy (*child);
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object_map[id] = child;
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return child;
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}
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void
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GUIObjectState::remove_node (const std::string& id)
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{
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object_map.erase (id);
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_state.remove_nodes_and_delete(X_("id"), id );
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}
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string
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GUIObjectState::get_string (const string& id, const string& prop_name, bool* empty)
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{
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std::map <std::string, XMLNode*>::const_iterator i = object_map.find (id);
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if (i == object_map.end()) {
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//assert (get_node (&_state, id) == 0); // XXX performance penalty due to get_node()
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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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//assert (get_node (&_state, id) == i->second); // XXX performance penalty due to get_node()
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XMLProperty const * p (i->second->property (prop_name));
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if (!p) {
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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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if (empty) {
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*empty = false;
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}
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return p->value ();
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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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return *new XMLNode (_state);
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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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object_map.clear ();
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_state = node;
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XMLNodeList const & children (_state.children ());
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for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
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if ((*i)->name() != X_("Object")) {
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continue;
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}
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XMLProperty const * prop = (*i)->property (X_("id"));
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if (!prop) {
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continue;
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}
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object_map[prop->value ()] = *i;
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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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std::list<string>
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GUIObjectState::all_ids () const
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{
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std::list<string> ids;
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for (std::map <std::string, XMLNode*>::const_iterator i = object_map.begin ();
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i != object_map.end (); ++i) {
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ids.push_back (i->first);
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}
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return ids;
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}
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