Sim: Add potentiometer model

eeschema/sim/sim_model_r_pot.cpp

@@ -0,0 +1,103 @@
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2022 Mikolaj Wielgus
+ * Copyright (C) 2022 KiCad Developers, see AUTHORS.txt for contributors.
+ *
+ * This program 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 3
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * https://www.gnu.org/licenses/gpl-3.0.html
+ * or you may search the http://www.gnu.org website for the version 3 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <sim/sim_model_r_pot.h>
+#include <fmt/core.h>
+
+
+std::string SPICE_GENERATOR_R_POT::ModelLine( const SPICE_ITEM& aItem ) const
+{
+    std::string r = m_model.FindParam( "r" )->value->ToSpiceString();
+    std::string pos = m_model.FindParam( "pos" )->value->ToSpiceString();
+
+    if( pos != "" )
+        return fmt::format( ".model {} potentiometer( r0={} position={} )\n", aItem.modelName, r, pos );
+    else
+        return fmt::format( ".model {} potentiometer( r0={} )\n", aItem.modelName, r );
+}
+
+
+SIM_MODEL_R_POT::SIM_MODEL_R_POT() :
+    SIM_MODEL( TYPE::R_POT, std::make_unique<SPICE_GENERATOR_R_POT>( *this ) )
+{
+    static std::vector<PARAM::INFO> paramInfos = makeParamInfos();
+
+    for( const SIM_MODEL::PARAM::INFO& paramInfo : paramInfos )
+        AddParam( paramInfo );
+}
+
+
+void SIM_MODEL_R_POT::WriteDataSchFields( std::vector<SCH_FIELD>& aFields ) const
+{
+    SIM_MODEL::WriteDataSchFields( aFields );
+
+    if( IsInferred() )
+        inferredWriteDataFields( aFields );
+}
+
+
+void SIM_MODEL_R_POT::WriteDataLibFields( std::vector<LIB_FIELD>& aFields ) const
+{
+    SIM_MODEL::WriteDataLibFields( aFields );
+
+    if( IsInferred() )
+        inferredWriteDataFields( aFields );
+}
+
+
+template <typename T>
+void SIM_MODEL_R_POT::inferredWriteDataFields( std::vector<T>& aFields ) const
+{
+    std::string value = GetFieldValue( &aFields, PARAMS_FIELD );
+
+    if( value == "" )
+        value = GetDeviceTypeInfo().fieldValue;
+
+    WriteInferredDataFields( aFields, value );
+}
+
+
+const std::vector<SIM_MODEL::PARAM::INFO> SIM_MODEL_R_POT::makeParamInfos()
+{
+    std::vector<PARAM::INFO> paramInfos;
+    PARAM::INFO paramInfo;
+
+    paramInfo.name = "r";
+    paramInfo.type = SIM_VALUE::TYPE_STRING;
+    paramInfo.unit = "Ω";
+    paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
+    paramInfo.defaultValue = "";
+    paramInfo.description = "Resistance";
+    paramInfos.push_back( paramInfo );
+
+    paramInfo.name = "pos";
+    paramInfo.type = SIM_VALUE::TYPE_FLOAT;
+    paramInfo.unit = "";
+    paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
+    paramInfo.defaultValue = "0.5";
+    paramInfo.description = "Wiper position";
+    paramInfos.push_back( paramInfo );
+
+    return paramInfos;
+}