libs/pbd/property_list.cc

   1 /*
   2     Copyright (C) 2010 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 #include "pbd/debug.h"
  21 #include "pbd/compose.h"
  22 #include "pbd/property_list.h"
  23 #include "pbd/xml++.h"
  24
  25 using namespace PBD;
  26
  27 PropertyList::PropertyList()
  28         : _property_owner (true)
  29 {
  30
  31 }
  32
  33 PropertyList::PropertyList (PropertyList const & other)
  34         : std::map<PropertyID, PropertyBase*> (other)
  35         , _property_owner (other._property_owner)
  36 {
  37         if (_property_owner) {
  38                 /* make our own copies of the properties */
  39                 clear ();
  40                 for (std::map<PropertyID, PropertyBase*>::const_iterator i = other.begin(); i != other.end(); ++i) {
  41                         insert (std::make_pair (i->first, i->second->clone ()));
  42                 }
  43         }
  44 }
  45
  46 PropertyList::~PropertyList ()
  47 {
  48         if (_property_owner) {
  49                 for (iterator i = begin (); i != end (); ++i) {
  50                         delete i->second;
  51                 }
  52         }
  53 }
  54
  55 void
  56 PropertyList::get_changes_as_xml (XMLNode* history_node)
  57 {
  58         for (const_iterator i = begin(); i != end(); ++i) {
  59                 DEBUG_TRACE (DEBUG::Properties, string_compose ("Add changes to %1 for %2\n",
  60                                                                 history_node->name(),
  61                                                                 i->second->property_name()));
  62                 i->second->get_changes_as_xml (history_node);
  63         }
  64 }
  65
  66 bool
  67 PropertyList::add (PropertyBase* prop)
  68 {
  69         return insert (value_type (prop->property_id(), prop)).second;
  70 }
  71
  72 void
  73 PropertyList::invert ()
  74 {
  75         for (iterator i = begin(); i != end(); ++i) {
  76                 i->second->invert ();
  77         }
  78 }
  79
  80 OwnedPropertyList::OwnedPropertyList ()
  81 {
  82         _property_owner = false;
  83 }
  84
  85 bool
  86 OwnedPropertyList::add (PropertyBase& p)
  87 {
  88         return insert (value_type (p.property_id (), &p)).second;
  89 }
  90
  91