180 lines
4.5 KiB
Text
180 lines
4.5 KiB
Text
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file configVariableEnum.I
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* @author drose
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* @date 2004-10-21
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*/
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/**
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*
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*/
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template<class EnumType>
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INLINE ConfigVariableEnum<EnumType>::
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ConfigVariableEnum(const std::string &name, EnumType default_value,
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const std::string &description, int flags) :
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#ifdef PRC_SAVE_DESCRIPTIONS
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ConfigVariable(name, ConfigVariableCore::VT_enum, description, flags),
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#else
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ConfigVariable(name, ConfigVariableCore::VT_enum, std::string(), flags),
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#endif
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_got_default_value(true),
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_default_value(default_value),
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_local_modified(initial_invalid_cache())
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{
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_core->set_default_value(format_enum(default_value));
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_core->set_used();
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}
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/**
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*
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*/
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template<class EnumType>
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INLINE ConfigVariableEnum<EnumType>::
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ConfigVariableEnum(const std::string &name, const std::string &default_value,
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const std::string &description, int flags) :
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#ifdef PRC_SAVE_DESCRIPTIONS
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ConfigVariable(name, ConfigVariableCore::VT_enum, description, flags),
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#else
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ConfigVariable(name, ConfigVariableCore::VT_enum, std::string(), flags),
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#endif
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_got_default_value(true),
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_default_value(parse_string(default_value)),
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_local_modified(initial_invalid_cache())
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{
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_core->set_default_value(default_value);
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_core->set_used();
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}
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/**
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*
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*/
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template<class EnumType>
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INLINE ConfigVariableEnum<EnumType>::
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~ConfigVariableEnum() {
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}
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/**
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* Reassigns the variable's local value.
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*/
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template<class EnumType>
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INLINE void ConfigVariableEnum<EnumType>::
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operator = (EnumType value) {
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set_value(value);
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}
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/**
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* Returns the variable's value.
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*/
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template<class EnumType>
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INLINE ConfigVariableEnum<EnumType>::
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operator EnumType () const {
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return get_value();
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}
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/**
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* Returns the number of unique words in the variable.
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*/
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template<class EnumType>
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INLINE size_t ConfigVariableEnum<EnumType>::
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size() const {
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return get_num_words();
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}
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/**
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* Returns the value of the variable's nth word.
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*/
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template<class EnumType>
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INLINE EnumType ConfigVariableEnum<EnumType>::
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operator [] (size_t n) const {
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return get_word(n);
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}
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/**
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* Reassigns the variable's local value.
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*/
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template<class EnumType>
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INLINE void ConfigVariableEnum<EnumType>::
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set_value(EnumType value) {
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set_string_value(format_enum(value));
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}
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/**
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* Returns the variable's value.
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*/
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template<class EnumType>
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INLINE EnumType ConfigVariableEnum<EnumType>::
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get_value() const {
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TAU_PROFILE("EnumType ConfigVariableEnum<EnumType>::get_value() const", " ", TAU_USER);
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if (!is_cache_valid(_local_modified)) {
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mark_cache_valid(((ConfigVariableEnum<EnumType> *)this)->_local_modified);
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((ConfigVariableEnum<EnumType> *)this)->_cache = (EnumType)parse_string(get_string_value());
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}
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return _cache;
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}
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/**
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* Returns the variable's default value.
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*/
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template<class EnumType>
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INLINE EnumType ConfigVariableEnum<EnumType>::
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get_default_value() const {
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if (!_got_default_value) {
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const ConfigDeclaration *decl = ConfigVariable::get_default_value();
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if (decl != nullptr) {
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((ConfigVariableEnum<EnumType> *)this)->_default_value = (EnumType)parse_string(decl->get_string_value());
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((ConfigVariableEnum<EnumType> *)this)->_got_default_value = true;
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}
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}
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return _default_value;
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}
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/**
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* Returns the variable's nth value.
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*/
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template<class EnumType>
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INLINE EnumType ConfigVariableEnum<EnumType>::
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get_word(size_t n) const {
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return (EnumType)parse_string(get_string_word(n));
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}
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/**
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* Reassigns the variable's nth value. This makes a local copy of the
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* variable's overall value.
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*/
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template<class EnumType>
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INLINE void ConfigVariableEnum<EnumType>::
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set_word(size_t n, EnumType value) {
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set_string_word(n, format_enum(value));
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}
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/**
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* Turns the string value into a value of the enumerated type by invoking its
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* predefined operator >> (istream) operator.
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*/
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template<class EnumType>
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INLINE EnumType ConfigVariableEnum<EnumType>::
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parse_string(const std::string &value) const {
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std::istringstream strm(value);
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EnumType result;
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strm >> result;
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return result;
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}
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/**
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* The format_enum() method assumes the enumerated type has a valid operator
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* << (ostream) defined, which balances against the operator >> (istream)
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* operator.
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*/
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template<class EnumType>
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INLINE std::string ConfigVariableEnum<EnumType>::
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format_enum(EnumType value) const {
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std::ostringstream strm;
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strm << value;
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return strm.str();
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}
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