--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file duck.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 "duck.h"
+#include <ETL/misc>
+
+#include "general.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+using namespace studio;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+int studio::Duck::duck_count(0);
+
+struct _DuckCounter
+{
+ static int counter;
+ ~_DuckCounter()
+ {
+ if(counter)
+ synfig::error("%d ducks not yet deleted!",counter);
+ }
+} _duck_counter;
+
+int _DuckCounter::counter(0);
+
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Duck::Duck():
+ rotations(synfig::Angle::deg(0)),
+ origin(0,0),
+ scalar(1),
+ editable(false),
+ radius_(false),
+ tangent_(false),
+ hover_(false),
+ ignore_(false)
+{ duck_count++; _DuckCounter::counter++; }
+
+Duck::Duck(const synfig::Point &point):
+ type_(TYPE_NONE),
+ point(point),
+ rotations(synfig::Angle::deg(0)),
+ origin(0,0),
+ scalar(1),
+ guid_(0),
+ editable(false),
+ radius_(false),
+ tangent_(false),
+ hover_(false),
+ ignore_(false)
+{ duck_count++; _DuckCounter::counter++;}
+
+Duck::Duck(const synfig::Point &point,const synfig::Point &origin):
+ point(point),
+ rotations(synfig::Angle::deg(0)),
+ origin(origin),
+ scalar(1),
+ guid_(0),
+ editable(false),
+ radius_(true),
+ tangent_(false),
+ hover_(false),
+ ignore_(false)
+{ duck_count++; _DuckCounter::counter++;}
+
+Duck::~Duck() { duck_count--; _DuckCounter::counter--;}
+
+synfig::GUID
+Duck::get_data_guid()const
+{
+ if(value_desc_.is_value_node())
+ return value_desc_.get_value_node()->get_guid();
+ return synfig::GUID::hasher(get_name());
+}
+
+void
+Duck::set_name(const synfig::String &x)
+{
+ name=x;
+ if(guid_==synfig::GUID::zero())
+ {
+ guid_=synfig::GUID::hasher(name);
+ }
+}
+
+
+bool
+Duck::operator==(const Duck &rhs)const
+{
+ if(this==&rhs)
+ return true;
+ return
+ name==rhs.name &&
+ scalar==rhs.scalar &&
+ type_==rhs.type_ &&
+ transform_stack_.size()==rhs.transform_stack_.size();
+ //true;
+ //(origin_duck?*origin_duck==*rhs.origin_duck:origin==rhs.origin) &&
+ //(shared_point?*shared_point==*rhs.shared_point:point==rhs.point) ;
+}
+
+synfig::Point
+Duck::get_trans_point()const
+{
+ return transform_stack_.perform(get_sub_trans_point());
+}
+
+void
+Duck::set_trans_point(const synfig::Point &x)
+{
+ set_sub_trans_point(transform_stack_.unperform(x));
+}
+
+//! Sets the origin point.
+void
+Duck::set_origin(const synfig::Point &x)
+{
+ origin=x; origin_duck=0;
+}
+
+//! Sets the origin point as another duck
+void
+Duck::set_origin(const etl::handle<Duck> &x)
+{
+ origin_duck=x;
+}
+
+//! Retrieves the origin location
+synfig::Point
+Duck::get_origin()const
+{
+ return origin_duck?origin_duck->get_point():origin;
+}
+
+//! Retrieves the origin duck
+const etl::handle<Duck> &
+Duck::get_origin_duck() const
+{
+ return origin_duck;
+}
+
+//! Retrieves the origin location
+synfig::Point
+Duck::get_trans_origin()const
+{
+ return transform_stack_.perform(get_sub_trans_origin());
+}
+
+synfig::Point
+Duck::get_sub_trans_point()const
+{
+ return get_point()*get_scalar()+get_sub_trans_origin();
+}
+
+void
+Duck::set_sub_trans_point(const synfig::Point &x)
+{
+ if (get_type() == Duck::TYPE_TANGENT ||
+ get_type() == Duck::TYPE_ANGLE)
+ {
+ Angle old_angle = get_point().angle();
+ set_point((x-get_sub_trans_origin())/get_scalar());
+ Angle change = get_point().angle() - old_angle;
+ while (change < Angle::deg(-180)) change += Angle::deg(360);
+ while (change > Angle::deg(180)) change -= Angle::deg(360);
+ int old_halves = round_to_int(Angle::deg(rotations).get()/180);
+ rotations += change;
+ int new_halves = round_to_int(Angle::deg(rotations).get()/180);
+ if (old_halves != new_halves &&
+ (new_halves > 1 || new_halves < -1 ||
+ old_halves > 1 || old_halves < -1))
+ synfig::info("rotation: %.2f turns", new_halves/2.0);
+ }
+ else
+ set_point((x-get_sub_trans_origin())/get_scalar());
+}
+
+synfig::Point
+Duck::get_sub_trans_origin()const
+{
+ return origin_duck?origin_duck->get_sub_trans_point():origin;
+}
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