proplist.cpp

/*
    This file is part of Nori, a simple educational ray tracer
 
    Copyright (c) 2015 by Wenzel Jakob, Romain Prévost
 
    Nori is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License Version 3
    as published by the Free Software Foundation.
 
    Nori 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, see <http://www.gnu.org/licenses/>.
*/
 
#include <nori/proplist.h>
 
NORI_NAMESPACE_BEGIN
 
#define DEFINE_PROPERTY_ACCESSOR(Type, TypeName, XmlName) \
    void PropertyList::set##TypeName(const std::string &name, const Type &value) { \
        if (m_properties.find(name) != m_properties.end()) \
            cerr << "Property \"" << name <<  "\" was specified multiple times!" << endl; \
        auto &prop = m_properties[name]; \
        prop.value.TypeName##_value = value; \
        prop.type = Property::TypeName##_type; \
    } \
    \
    Type PropertyList::get##TypeName(const std::string &name) const { \
        auto it = m_properties.find(name); \
        if (it == m_properties.end()) \
            throw NoriException("Property '%s' is missing!", name); \
        if (it->second.type != Property::TypeName##_type) \
            throw NoriException("Property '%s' has the wrong type! " \
                "(expected <" #XmlName ":" #TypeName ">)!", name); \
        return it->second.value.TypeName##_value; \
    } \
    \
    Type PropertyList::get##TypeName(const std::string &name, const Type &defVal) const { \
        auto it = m_properties.find(name); \
        if (it == m_properties.end()) \
            return defVal; \
        if (it->second.type != Property::TypeName##_type) \
            throw NoriException("Property '%s' has the wrong type! " \
                "(expected <" #XmlName ":" #TypeName ">)!", name); \
        return it->second.value.TypeName##_value; \
    }
 
DEFINE_PROPERTY_ACCESSOR(bool, Boolean, boolean)
DEFINE_PROPERTY_ACCESSOR(int, Integer, integer)
DEFINE_PROPERTY_ACCESSOR(float, Float, float)
DEFINE_PROPERTY_ACCESSOR(Color3f, Color, color)
DEFINE_PROPERTY_ACCESSOR(Point3f, Point3, point)
DEFINE_PROPERTY_ACCESSOR(Vector3f, Vector3, vector)
DEFINE_PROPERTY_ACCESSOR(Point2f, Point2, point)
DEFINE_PROPERTY_ACCESSOR(Vector2f, Vector2, vector)
DEFINE_PROPERTY_ACCESSOR(std::string, String, string)
DEFINE_PROPERTY_ACCESSOR(Transform, Transform, transform)
 
NORI_NAMESPACE_END