--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file node.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 2008 Chris Moore
+**
+** This package 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 package 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.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "node.h"
+// #include "nodebase.h" // this defines a bunch of sigc::slots that are never used
+
+#ifdef HASH_MAP_H
+#include HASH_MAP_H
+#else
+#include <map>
+#endif
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+// About BE_FRUGAL_WITH_GUIDS
+// If this macro is set, then a GUID will NOT
+// be calculated until the first call to get_guid()
+// This also means that the node doesn't get
+// added to the database until get_guid() is called
+// for the first time, or set_guid() is called.
+// If it is expensive to calculate GUIDs, then
+// this can improve performance a tad in
+// some cases. Otherwise, it doesn't change
+// much of anything.
+#define BE_FRUGAL_WITH_GUIDS 1
+
+#ifndef __sys_clock
+#ifndef _WIN32
+# include <time.h>
+# define __sys_clock ::clock
+#else
+# ifdef __GNUG__
+# include <time.h>
+# define __sys_clock ::clock
+# else
+typedef int clock_t;
+extern clock_t _clock();
+# define CLOCKS_PER_SEC 1000
+# define __sys_clock _clock
+# endif
+#endif
+#endif
+
+/* === G L O B A L S ======================================================= */
+
+#ifdef HASH_MAP_H
+typedef HASH_MAP_CLASS<synfig::GUID,Node*,GUIDHash> GlobalNodeMap;
+#else
+typedef map<synfig::GUID,Node*> GlobalNodeMap;
+#endif
+
+static GlobalNodeMap* global_node_map_;
+
+static GlobalNodeMap& global_node_map()
+{
+ if(!global_node_map_)
+ global_node_map_=new GlobalNodeMap;
+ return *global_node_map_;
+}
+
+/* === P R O C E D U R E S ================================================= */
+
+synfig::Node*
+synfig::find_node(const synfig::GUID& guid)
+{
+ if(global_node_map().count(guid)==0)
+ return 0;
+ return global_node_map()[guid];
+}
+
+static void
+refresh_node(synfig::Node* node, synfig::GUID old_guid)
+{
+ assert(global_node_map().count(old_guid));
+ global_node_map().erase(old_guid);
+ assert(!global_node_map().count(old_guid));
+ global_node_map()[node->get_guid()]=node;
+}
+
+/* === M E T H O D S ======================================================= */
+
+#ifdef _DEBUG
+const char *
+TimePoint::c_str()const
+{
+ return get_time().get_string().c_str();
+}
+#endif
+
+void
+TimePoint::absorb(const TimePoint& x)
+{
+ if(get_guid()==x.get_guid())
+ return;
+ set_guid(get_guid()^x.get_guid());
+
+ if(get_after()==INTERPOLATION_NIL)
+ set_after(x.get_after());
+ if(get_before()==INTERPOLATION_NIL)
+ set_before(x.get_before());
+
+ if(get_after()!=x.get_after() && x.get_after()!=INTERPOLATION_NIL)
+ set_after(INTERPOLATION_UNDEFINED);
+ if(get_before()!=x.get_before() && x.get_before()!=INTERPOLATION_NIL)
+ set_before(INTERPOLATION_UNDEFINED);
+}
+
+TimePointSet::iterator
+TimePointSet::insert(const TimePoint& x)
+{
+ iterator iter(find(x));
+ if(iter!=end())
+ {
+ const_cast<TimePoint&>(*iter).absorb(x);
+ return iter;
+ }
+ return std::set<TimePoint>::insert(x).first;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Node::Node():
+ guid_(0),
+ bchanged(true),
+ time_last_changed_(__sys_clock()),
+ deleting_(false)
+{
+#ifndef BE_FRUGAL_WITH_GUIDS
+ guid_.make_unique();
+ assert(guid_);
+ assert(!global_node_map().count(guid_));
+ global_node_map()[guid_]=this;
+#endif
+}
+
+Node::~Node()
+{
+ begin_delete();
+
+ if(guid_)
+ {
+ assert(global_node_map().count(guid_));
+ global_node_map().erase(guid_);
+ assert(!global_node_map().count(guid_));
+ }
+}
+
+void
+Node::changed()
+{
+ time_last_changed_=__sys_clock();
+ on_changed();
+}
+
+
+//! Gets the GUID for this value node
+const synfig::GUID&
+Node::get_guid()const
+{
+#ifdef BE_FRUGAL_WITH_GUIDS
+ if(!guid_)
+ {
+ const_cast<synfig::GUID&>(guid_).make_unique();
+ assert(guid_);
+ assert(!global_node_map().count(guid_));
+ global_node_map()[guid_]=const_cast<Node*>(this);
+ }
+#endif
+
+ return guid_;
+}
+
+//! Sets the GUID for this value node
+void
+Node::set_guid(const synfig::GUID& x)
+{
+ assert(x);
+
+#ifdef BE_FRUGAL_WITH_GUIDS
+ if(!guid_)
+ {
+ guid_=x;
+ assert(!global_node_map().count(guid_));
+ global_node_map()[guid_]=this;
+ }
+ else
+#endif
+ if(guid_!=x)
+ {
+ synfig::GUID oldguid(guid_);
+ guid_=x;
+ refresh_node(this, oldguid);
+ on_guid_changed(oldguid);
+ }
+}
+
+int
+Node::get_time_last_changed()const
+{
+ return time_last_changed_;
+}
+
+void
+Node::add_child(Node*x)
+{
+ x->parent_set.insert(this);
+}
+
+void
+Node::remove_child(Node*x)
+{
+ if(x->parent_set.count(this)) x->parent_set.erase(this);
+}
+
+int
+Node::parent_count()const
+{
+ return parent_set.size();
+}
+
+const Node::time_set &
+Node::get_times() const
+{
+ if(bchanged)
+ {
+ times.clear();
+ get_times_vfunc(times);
+ bchanged = false;
+ }
+
+ //set the output set...
+ return times;
+}
+
+void
+Node::begin_delete()
+{
+ if(!deleting_)
+ {
+ deleting_=true; signal_deleted()();
+ }
+}
+
+void
+Node::on_changed()
+{
+ bchanged = true;
+ signal_changed()();
+
+ std::set<Node*>::iterator iter;
+ for(iter=parent_set.begin();iter!=parent_set.end();++iter)
+ {
+ (*iter)->changed();
+ }
+}
+
+void
+Node::on_guid_changed(synfig::GUID guid)
+{
+ signal_guid_changed()(guid);
+}
projects / synfig.git / blobdiff