--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_range.cpp
+** \brief Implementation of the "Range" valuenode conversion.
+**
+** $Id$
+**
+** \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 "general.h"
+#include "valuenode_range.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include "vector.h"
+#include "angle.h"
+#include "real.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+synfig::ValueNode_Range::ValueNode_Range(const ValueBase &value):
+ LinkableValueNode(value.get_type())
+{
+ ValueBase::Type id(value.get_type());
+
+ switch(id)
+ {
+ case ValueBase::TYPE_ANGLE:
+ set_link("min",ValueNode_Const::create(value.get(Angle())));
+ set_link("max",ValueNode_Const::create(value.get(Angle())));
+ set_link("link",ValueNode_Const::create(value.get(Angle())));
+ break;
+ case ValueBase::TYPE_INTEGER:
+ set_link("min",ValueNode_Const::create(value.get(int())));
+ set_link("max",ValueNode_Const::create(value.get(int())));
+ set_link("link",ValueNode_Const::create(value.get(int())));
+ break;
+ case ValueBase::TYPE_REAL:
+ set_link("min",ValueNode_Const::create(value.get(Real())));
+ set_link("max",ValueNode_Const::create(value.get(Real())));
+ set_link("link",ValueNode_Const::create(value.get(Real())));
+ break;
+ case ValueBase::TYPE_TIME:
+ set_link("min",ValueNode_Const::create(value.get(Time())));
+ set_link("max",ValueNode_Const::create(value.get(Time())));
+ set_link("link",ValueNode_Const::create(value.get(Time())));
+ break;
+ default:
+ assert(0);
+ throw runtime_error(get_local_name()+_(":Bad type ")+ValueBase::type_local_name(id));
+ }
+
+ assert(min_->get_type()==id);
+ assert(max_->get_type()==id);
+ assert(link_->get_type()==id);
+ assert(get_type()==id);
+
+ DCAST_HACK_ENABLE();
+}
+
+LinkableValueNode*
+ValueNode_Range::create_new()const
+{
+ return new ValueNode_Range(get_type());
+}
+
+ValueNode_Range*
+ValueNode_Range::create(const ValueBase& value)
+{
+ return new ValueNode_Range(value);
+}
+
+synfig::ValueNode_Range::~ValueNode_Range()
+{
+ unlink_all();
+}
+
+synfig::ValueBase
+synfig::ValueNode_Range::operator()(Time t)const
+{
+ if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+ printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+ if(!min_ || !max_ || !link_)
+ throw runtime_error(strprintf("ValueNode_Range: %s",_("Some of my parameters aren't set!")));
+
+ switch(get_type())
+ {
+ case ValueBase::TYPE_ANGLE:
+ {
+ Angle minimum = (* min_)(t).get(Angle());
+ Angle maximum = (* max_)(t).get(Angle());
+ Angle link = (*link_)(t).get(Angle());
+
+ // if link is between min and max, use it
+ if (Angle::deg((link-minimum).mod()).get() < Angle::deg((maximum-minimum).mod()).get())
+ return link;
+ // otherwise use whichever of min and max is closest to link
+ else if (link.dist(minimum).abs() < link.dist(maximum).abs())
+ return minimum;
+ else
+ return maximum;
+ }
+ case ValueBase::TYPE_INTEGER:
+ return std::max((*min_)(t).get(int()), std::min((*max_)(t).get(int()), (*link_)(t).get(int())));
+ case ValueBase::TYPE_REAL:
+ return std::max((*min_)(t).get(Real()), std::min((*max_)(t).get(Real()), (*link_)(t).get(Real())));
+ case ValueBase::TYPE_TIME:
+ return std::max((*min_)(t).get(Time()), std::min((*max_)(t).get(Time()), (*link_)(t).get(Time())));
+ default:
+ assert(0);
+ break;
+ }
+ return ValueBase();
+}
+
+bool
+ValueNode_Range::set_link_vfunc(int i,ValueNode::Handle value)
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: CHECK_TYPE_AND_SET_VALUE(min_, get_type());
+ case 1: CHECK_TYPE_AND_SET_VALUE(max_, get_type());
+ case 2: CHECK_TYPE_AND_SET_VALUE(link_, get_type());
+ }
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Range::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return min_;
+ case 1: return max_;
+ case 2: return link_;
+ default: return 0;
+ }
+}
+
+int
+ValueNode_Range::link_count()const
+{
+ return 3;
+}
+
+String
+ValueNode_Range::link_local_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return _("Min");
+ case 1: return _("Max");
+ case 2: return _("Link");
+ default: return String();
+ }
+}
+
+String
+ValueNode_Range::link_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return "min";
+ case 1: return "max";
+ case 2: return "link";
+ default: return String();
+ }
+}
+
+int
+ValueNode_Range::get_link_index_from_name(const String &name)const
+{
+ if(name=="min") return 0;
+ if(name=="max") return 1;
+ if(name=="link") return 2;
+ throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_Range::get_name()const
+{
+ return "range";
+}
+
+String
+ValueNode_Range::get_local_name()const
+{
+ return _("Range");
+}
+
+bool
+ValueNode_Range::check_type(ValueBase::Type type)
+{
+ return type==ValueBase::TYPE_ANGLE
+ || type==ValueBase::TYPE_INTEGER
+ || type==ValueBase::TYPE_REAL
+ || type==ValueBase::TYPE_TIME;
+}
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