OmniaFramework/src/ostd/io/Stylesheet.hpp

103 lines
3.9 KiB
C++

/*
OmniaFramework - A collection of useful functionality
Copyright (C) 2026 OmniaX-Dev
This file is part of OmniaFramework.
OmniaFramework 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.
OmniaFramework 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 OmniaFramework. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <ostd/string/TextStyleParser.hpp>
#include <ostd/data/Color.hpp>
#include <ostd/math/Geometry.hpp>
#include <ostd/data/AnimationData.hpp>
#include <ostd/io/StaticHashMap.hpp>
#include <variant>
namespace ostd
{
class Stylesheet
{
public: using QualifierList = stdvec<std::pair<const String, bool>>;
public: using VariableList = stdumap<String, std::pair<String, bool>>;
public: using TypeVariant = std::variant<i32, f32, bool, String, Color, Rectangle, Vec2, ColorGradient, AnimationData>;
private: struct Macro
{
String body { "" };
stdvec<std::pair<String, String>> params;
inline i32 argCount(void) const { return params.size(); }
};
public:
Stylesheet(void);
Stylesheet& clear(void);
Stylesheet& loadFromFile(const String& filePath, bool clearCurrentRules = true, VariableList variables = {});
Stylesheet& loadFromString(const String& content, const String& filePath = "memory://", bool clearCurrentRules = true, VariableList variables = {});
void set(const std::string& key, TypeVariant value, const String& themeID);
void removeRule(const String& fullKey);
void setFull(const String& fullKey, TypeVariant value);
const TypeVariant* getVariant(const String& key, const stdvec<String>& themeIDList, const QualifierList& qualifierList) const;
const TypeVariant* getFull(const String& fullKey) const;
template<typename T>
inline T get(const String& key, const T& fallback, const stdvec<String>& themeIDList, const QualifierList& qualifierList) const
{
if (auto v = getVariant(key, themeIDList, qualifierList))
{
// Direct match: return as-is
if (auto p = std::get_if<T>(v))
return *p;
// Cross-cast for numeric types
if constexpr (std::is_same_v<T, i32>)
{
if (auto p = std::get_if<f32>(v))
return cast<i32>(*p);
}
else if constexpr (std::is_same_v<T, f32>)
{
if (auto p = std::get_if<i32>(v))
return cast<f32>(*p);
}
}
return fallback;
}
void debugPrint(void);
String typeVariantToString(const TypeVariant& v);
private:
bool parseThemeFileLine(const String& line, const VariableList& variables, bool exitCondition = false);
String parseGroupSelector(const String& rawSelector) const;
stdvec<String> parseGroup(const String& selector, const stdvec<String>& group);
Color parseColor(const String& _value, const VariableList& variables);
Vec2 parseVec2(const String& _value, const VariableList& variables);
Rectangle parseRect(const String& _value, const VariableList& variables);
ColorGradient parseColorGradient(const String& _value, const VariableList& variables);
AnimationData parseAnim(const String& _value, bool& outError, const VariableList& variables);
String replaceVariables(const String& line, const VariableList& variables, bool stop_at_first_match = true);
bool parseMacro(const String& macroCode);
stdvec<String> parseMacroCall(const String& call, const Macro& macro);
private:
stdumap<String, TypeVariant> m_values;
stdumap<String, Macro> m_macros;
const String m_validNameRegex { "^[A-Za-z_][A-Za-z0-9_]*$" };
inline static const String MacroParamDefault { "NO_VAL" };
};
}