mirror of https://github.com/odrling/Aegisub
147 lines
7.4 KiB
C++
147 lines
7.4 KiB
C++
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/// @file option_value.h
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/// @brief Container for holding an actual option value.
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/// @ingroup libaegisub
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#include <cstdint>
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#include <vector>
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#include <libaegisub/color.h>
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#include <libaegisub/exception.h>
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#include <libaegisub/signal.h>
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namespace agi {
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DEFINE_BASE_EXCEPTION_NOINNER(OptionValueError, Exception)
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorNotFound, OptionValueError, "options/not_found")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorInvalidType, OptionValueError, "options/invalid_type")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionValueErrorInvalidListType, OptionValueError, "options/array/invalid_type")
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/// @class OptionValue
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/// Holds an actual option.
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class OptionValue {
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agi::signal::Signal<OptionValue const&> ValueChanged;
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std::string name;
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protected:
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void NotifyChanged() { ValueChanged(*this); }
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OptionValueErrorInvalidType TypeError(std::string type, std::string op = " retrieve ") const {
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return OptionValueErrorInvalidType("Attempt to" + op + type + " with non-" + type + " value " + GetName());
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}
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OptionValueErrorInvalidListType ListTypeError(std::string type, std::string op = " retrieve ") const {
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return OptionValueErrorInvalidListType("Attempt to" + op + type + " with non-" + type + " list " + GetName());
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}
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OptionValue(std::string name) : name(std::move(name)) { }
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public:
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virtual ~OptionValue() {};
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/// Option type
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/// No bitsets here.
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enum OptionType {
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Type_String = 0, ///< String
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Type_Int = 1, ///< Integer
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Type_Double = 2, ///< Double
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Type_Color = 3, ///< Color
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Type_Bool = 4, ///< Bool
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Type_List_String = 100, ///< List of Strings
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Type_List_Int = 101, ///< List of Integers
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Type_List_Double = 102, ///< List of Doubles
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Type_List_Color = 103, ///< List of Colors
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Type_List_Bool = 104 ///< List of Bools
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};
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std::string GetName() const { return name; }
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virtual OptionType GetType() const = 0;
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virtual bool IsDefault() const = 0;
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virtual void Reset() = 0;
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virtual std::string GetString() const { throw TypeError("string"); }
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virtual int64_t GetInt() const { throw TypeError("int"); }
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virtual double GetDouble() const { throw TypeError("double"); }
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virtual Color GetColor() const { throw TypeError("color"); }
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virtual bool GetBool() const { throw TypeError("bool"); }
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virtual void SetString(const std::string) { throw TypeError("string", " set "); }
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virtual void SetInt(const int64_t) { throw TypeError("int", " set "); }
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virtual void SetDouble(const double) { throw TypeError("double", " set "); }
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virtual void SetColor(const Color) { throw TypeError("color", " set "); }
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virtual void SetBool(const bool) { throw TypeError("bool", " set "); }
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virtual std::vector<std::string> const& GetListString() const { throw ListTypeError("string"); }
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virtual std::vector<int64_t> const& GetListInt() const { throw ListTypeError("int"); }
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virtual std::vector<double> const& GetListDouble() const { throw ListTypeError("double"); }
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virtual std::vector<Color> const& GetListColor() const { throw ListTypeError("color"); }
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virtual std::vector<bool> const& GetListBool() const { throw ListTypeError("string"); }
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virtual void SetListString(const std::vector<std::string>&) { throw ListTypeError("string", " set "); }
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virtual void SetListInt(const std::vector<int64_t>&) { throw ListTypeError("int", " set "); }
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virtual void SetListDouble(const std::vector<double>&) { throw ListTypeError("double", " set "); }
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virtual void SetListColor(const std::vector<Color>&) { throw ListTypeError("color", " set "); }
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virtual void SetListBool(const std::vector<bool>&) { throw ListTypeError("string", " set "); }
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virtual void Set(const OptionValue *new_value)=0;
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DEFINE_SIGNAL_ADDERS(ValueChanged, Subscribe)
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};
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#define CONFIG_OPTIONVALUE(type_name, type) \
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class OptionValue##type_name final : public OptionValue { \
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type value; \
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type value_default; \
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public: \
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OptionValue##type_name(std::string member_name, type member_value) \
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: OptionValue(std::move(member_name)) \
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, value(member_value), value_default(member_value) { } \
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type Get##type_name() const { return value; } \
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void Set##type_name(const type new_val) { value = new_val; NotifyChanged(); } \
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OptionType GetType() const { return OptionValue::Type_##type_name; } \
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void Reset() { value = value_default; NotifyChanged(); } \
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bool IsDefault() const { return value == value_default; } \
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void Set(const OptionValue *new_val) { Set##type_name(new_val->Get##type_name()); } \
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};
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CONFIG_OPTIONVALUE(String, std::string)
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CONFIG_OPTIONVALUE(Int, int64_t)
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CONFIG_OPTIONVALUE(Double, double)
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CONFIG_OPTIONVALUE(Color, Color)
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CONFIG_OPTIONVALUE(Bool, bool)
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#define CONFIG_OPTIONVALUE_LIST(type_name, type) \
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class OptionValueList##type_name final : public OptionValue { \
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std::vector<type> array; \
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std::vector<type> array_default; \
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std::string name; \
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public: \
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OptionValueList##type_name(std::string name, std::vector<type> const& value = std::vector<type>()) \
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: OptionValue(std::move(name)) \
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, array(value), array_default(value) { } \
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std::vector<type> const& GetList##type_name() const { return array; } \
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void SetList##type_name(const std::vector<type>& val) { array = val; NotifyChanged(); } \
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OptionType GetType() const { return OptionValue::Type_List_##type_name; } \
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void Reset() { array = array_default; NotifyChanged(); } \
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bool IsDefault() const { return array == array_default; } \
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void Set(const OptionValue *nv) { SetList##type_name(nv->GetList##type_name()); } \
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};
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CONFIG_OPTIONVALUE_LIST(String, std::string)
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CONFIG_OPTIONVALUE_LIST(Int, int64_t)
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CONFIG_OPTIONVALUE_LIST(Double, double)
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CONFIG_OPTIONVALUE_LIST(Color, Color)
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CONFIG_OPTIONVALUE_LIST(Bool, bool)
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} // namespace agi
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