89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
#pragma once
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#include <hex.hpp>
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#include <hex/helpers/fs.hpp>
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#include <string>
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#include <variant>
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#include <nlohmann/json_fwd.hpp>
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#include <imgui.h>
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namespace hex {
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/**
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* @brief The Theme Manager takes care of loading and applying themes
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*/
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class ThemeManager {
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public:
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constexpr static auto NativeTheme = "Native";
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using ColorMap = std::map<std::string, u32>;
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struct Style {
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std::variant<ImVec2*, float*> value;
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float min;
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float max;
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bool needsScaling;
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};
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using StyleMap = std::map<std::string, Style>;
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/**
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* @brief Changes the current theme to the one with the given name
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* @param name Name of the theme to change to
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*/
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static void changeTheme(std::string name);
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/**
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* @brief Adds a theme from json data
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* @param content JSON data of the theme
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*/
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static void addTheme(const std::string &content);
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/**
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* @brief Adds a theme handler to handle color values loaded from a theme file
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* @param name Name of the handler
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* @param colorMap Map of color names to their respective constants
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* @param getFunction Function to get the color value of a constant
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* @param setFunction Function to set the color value of a constant
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*/
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static void addThemeHandler(const std::string &name, const ColorMap &colorMap, const std::function<ImColor(u32)> &getFunction, const std::function<void(u32, ImColor)> &setFunction);
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/**
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* @brief Adds a style handler to handle style values loaded from a theme file
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* @param name Name of the handler
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* @param styleMap Map of style names to their respective constants
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*/
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static void addStyleHandler(const std::string &name, const StyleMap &styleMap);
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static void reapplyCurrentTheme();
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static std::vector<std::string> getThemeNames();
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static const std::string &getImageTheme();
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static std::optional<ImColor> parseColorString(const std::string &colorString);
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static nlohmann::json exportCurrentTheme(const std::string &name);
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static void reset();
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public:
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struct ThemeHandler {
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ColorMap colorMap;
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std::function<ImColor(u32)> getFunction;
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std::function<void(u32, ImColor)> setFunction;
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};
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struct StyleHandler {
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StyleMap styleMap;
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};
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static const std::map<std::string, ThemeHandler>& getThemeHandlers();
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static const std::map<std::string, StyleHandler>& getStyleHandlers();
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private:
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ThemeManager() = default;
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};
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} |