From: genete Date: Wed, 22 Apr 2009 15:43:31 +0000 (+0000) Subject: Apply patch #18: Valuenode Type Power. Thanks to nikitakit. X-Git-Url: https://git.pterodactylus.net/?a=commitdiff_plain;h=8d48084b9a179d2eeabb225fbb4fe3877f497ddc;p=synfig.git Apply patch #18: Valuenode Type Power. Thanks to nikitakit. git-svn-id: https://synfig.svn.sourceforge.net/svnroot/synfig@2362 1f10aa63-cdf2-0310-b900-c93c546f37ac --- diff --git a/synfig-core/trunk/src/synfig/Makefile.am b/synfig-core/trunk/src/synfig/Makefile.am index a406f9a..88a6b90 100644 --- a/synfig-core/trunk/src/synfig/Makefile.am +++ b/synfig-core/trunk/src/synfig/Makefile.am @@ -84,6 +84,7 @@ VALUENODEHEADERS = \ valuenode_join.h \ valuenode_linear.h \ valuenode_log.h \ + valuenode_pow.h \ valuenode_radialcomposite.h \ valuenode_range.h \ valuenode_realstring.h \ @@ -132,6 +133,7 @@ VALUENODESOURCES = \ valuenode_join.cpp \ valuenode_linear.cpp \ valuenode_log.cpp \ + valuenode_pow.cpp \ valuenode_radialcomposite.cpp \ valuenode_range.cpp \ valuenode_realstring.cpp \ diff --git a/synfig-core/trunk/src/synfig/valuenode.cpp b/synfig-core/trunk/src/synfig/valuenode.cpp index 7059cf9..21645c8 100644 --- a/synfig-core/trunk/src/synfig/valuenode.cpp +++ b/synfig-core/trunk/src/synfig/valuenode.cpp @@ -86,6 +86,7 @@ #include "valuenode_anglestring.h" #include "valuenode_intstring.h" #include "valuenode_log.h" +#include "valuenode_pow.h" #include "layer.h" @@ -181,6 +182,7 @@ ValueNode::subsys_init() ADD_VALUENODE(ValueNode_Logarithm, "logarithm", _("Logarithm"), RELEASE_VERSION_0_61_09); // SVN r2034 ADD_VALUENODE(ValueNode_Greyed, "greyed", _("Greyed"), RELEASE_VERSION_0_61_10); // SVN r2305 + ADD_VALUENODE(ValueNode_Pow, "power", _("Power"), RELEASE_VERSION_0_61_09); // SVN r2362 #undef ADD_VALUENODE #undef ADD_VALUENODE2 diff --git a/synfig-core/trunk/src/synfig/valuenode_pow.cpp b/synfig-core/trunk/src/synfig/valuenode_pow.cpp new file mode 100644 index 0000000..fa00618 --- /dev/null +++ b/synfig-core/trunk/src/synfig/valuenode_pow.cpp @@ -0,0 +1,204 @@ +/* === S Y N F I G ========================================================= */ +/*! \file valuenode_pow.cpp +** \brief Implementation of the "Power" valuenode conversion. +** +** $Id$ +** +** \legal +** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley +** Copyright (c) 2007, 2008 Chris Moore +** Copyright (c) 2009 Nikita Kitaev +** +** 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 +#endif + +#include "valuenode_pow.h" +#include "valuenode_const.h" +#include "general.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 ======================================================= */ + +ValueNode_Pow::ValueNode_Pow(const ValueBase &x): + LinkableValueNode(x.get_type()) +{ + Real value(x.get(Real())); + Real infinity(999999.0); + Real epsilon(0.000001); + + set_link("base", ValueNode_Const::create(Real(value))); + set_link("power", ValueNode_Const::create(Real(1))); + set_link("epsilon", ValueNode_Const::create(Real(epsilon))); + set_link("infinite", ValueNode_Const::create(Real(infinity))); +} + +ValueNode_Pow* +ValueNode_Pow::create(const ValueBase &x) +{ + return new ValueNode_Pow(x); +} + +LinkableValueNode* +ValueNode_Pow::create_new()const +{ + return new ValueNode_Pow(get_type()); +} + +ValueNode_Pow::~ValueNode_Pow() +{ + unlink_all(); +} + +bool +ValueNode_Pow::set_link_vfunc(int i,ValueNode::Handle value) +{ + assert(i>=0 && i=0 && i=0 && i=0 && i 0) //0^x=0 + return Real(0); + else + if ( ( ((int) power) % 2 != 0) && (base < 0) ) //(-0)^(-odd)=-inf + return -infinite; + else + return infinite; + + if (base <= epsilon && ((int) power) != power) //negative number to fractional power -> undefined + power = ((int) power); //so round off power to nearest integer + + return pow(base,power); + +} + +String +ValueNode_Pow::get_name()const +{ + return "power"; +} + +String +ValueNode_Pow::get_local_name()const +{ + return _("Power"); +} + +bool +ValueNode_Pow::check_type(ValueBase::Type type) +{ + return type==ValueBase::TYPE_REAL; +} diff --git a/synfig-core/trunk/src/synfig/valuenode_pow.h b/synfig-core/trunk/src/synfig/valuenode_pow.h new file mode 100644 index 0000000..69237fd --- /dev/null +++ b/synfig-core/trunk/src/synfig/valuenode_pow.h @@ -0,0 +1,84 @@ +/* === S Y N F I G ========================================================= */ +/*! \file valuenode_pow.h +** \brief Header file for implementation of the "Power" valuenode conversion. +** +** $Id$ +** +** \legal +** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley +** Copyright (c) 2007 Chris Moore +** Copyright (c) 2009 Nikita Kitaev +** +** 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 +*/ +/* ========================================================================= */ + +/* === S T A R T =========================================================== */ + +#ifndef __SYNFIG_VALUENODE_POW_H +#define __SYNFIG_VALUENODE_POW_H + +/* === H E A D E R S ======================================================= */ + +#include "valuenode.h" + +/* === M A C R O S ========================================================= */ + +/* === C L A S S E S & S T R U C T S ======================================= */ + +namespace synfig { + +class ValueNode_Pow : public LinkableValueNode +{ + ValueNode::RHandle base_; + ValueNode::RHandle power_; + ValueNode::RHandle epsilon_; + ValueNode::RHandle infinite_; + +public: + typedef etl::handle Handle; + typedef etl::handle ConstHandle; + + ValueNode_Pow(const ValueBase &x); + + virtual ValueBase operator()(Time t)const; + + virtual ~ValueNode_Pow(); + + virtual String get_name()const; + virtual String get_local_name()const; + + + virtual ValueNode::LooseHandle get_link_vfunc(int i)const; + virtual int link_count()const; + virtual String link_name(int i)const; + + virtual String link_local_name(int i)const; + virtual int get_link_index_from_name(const String &name)const; + +protected: + LinkableValueNode* create_new()const; + virtual bool set_link_vfunc(int i,ValueNode::Handle x); + +public: + using synfig::LinkableValueNode::get_link_vfunc; + + using synfig::LinkableValueNode::set_link_vfunc; + static bool check_type(ValueBase::Type type); + static ValueNode_Pow* create(const ValueBase &x); +}; // END of class ValueNode_Pow + +}; // END of namespace synfig + +/* === E N D =============================================================== */ + +#endif