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mirror of synced 2024-11-15 03:27:40 +01:00
ImHex/lib/libimhex/include/hex/plugin.hpp

145 lines
11 KiB
C++

#pragma once
#include <hex.hpp>
#include <hex/api/plugin_manager.hpp>
#include <hex/helpers/logger.hpp>
#include <string>
#include <imgui.h>
#include <imgui_internal.h>
#include <wolv/utils/string.hpp>
#include <wolv/utils/preproc.hpp>
#include <wolv/utils/guards.hpp>
namespace {
struct PluginFunctionHelperInstantiation {};
}
template<typename T>
struct PluginFeatureFunctionHelper {
static void* getFeatures();
};
template<typename T>
struct PluginSubCommandsFunctionHelper {
static void* getSubCommands();
};
template<typename T>
void* PluginFeatureFunctionHelper<T>::getFeatures() {
return nullptr;
}
template<typename T>
void* PluginSubCommandsFunctionHelper<T>::getSubCommands() {
return nullptr;
}
#if defined (IMHEX_STATIC_LINK_PLUGINS)
#define IMHEX_PLUGIN_VISIBILITY_PREFIX static
#else
#define IMHEX_PLUGIN_VISIBILITY_PREFIX extern "C" [[gnu::visibility("default")]]
#endif
/**
* This macro is used to define all the required entry points for a plugin.
* Name, Author and Description will be displayed in the in the plugin list on the Welcome screen.
*/
#define IMHEX_PLUGIN_SETUP(name, author, description) IMHEX_PLUGIN_SETUP_IMPL(name, author, description)
#define IMHEX_LIBRARY_SETUP(name) IMHEX_LIBRARY_SETUP_IMPL(name)
#define IMHEX_LIBRARY_SETUP_IMPL(name) \
namespace { static struct EXIT_HANDLER { ~EXIT_HANDLER() { hex::log::debug("Unloaded library '{}'", name); } } HANDLER; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX void WOLV_TOKEN_CONCAT(initializeLibrary_, IMHEX_PLUGIN_NAME)(); \
IMHEX_PLUGIN_VISIBILITY_PREFIX const char *WOLV_TOKEN_CONCAT(getLibraryName_, IMHEX_PLUGIN_NAME)() { return name; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX void WOLV_TOKEN_CONCAT(setImGuiContext_, IMHEX_PLUGIN_NAME)(ImGuiContext *ctx) { \
ImGui::SetCurrentContext(ctx); \
GImGui = ctx; \
} \
extern "C" [[gnu::visibility("default")]] void WOLV_TOKEN_CONCAT(forceLinkPlugin_, IMHEX_PLUGIN_NAME)() { \
hex::PluginManager::addPlugin(name, hex::PluginFunctions { \
nullptr, \
WOLV_TOKEN_CONCAT(initializeLibrary_, IMHEX_PLUGIN_NAME), \
nullptr, \
WOLV_TOKEN_CONCAT(getLibraryName_, IMHEX_PLUGIN_NAME), \
nullptr, \
nullptr, \
nullptr, \
WOLV_TOKEN_CONCAT(setImGuiContext_, IMHEX_PLUGIN_NAME), \
nullptr, \
nullptr, \
nullptr \
}); \
} \
IMHEX_PLUGIN_VISIBILITY_PREFIX void WOLV_TOKEN_CONCAT(initializeLibrary_, IMHEX_PLUGIN_NAME)()
#define IMHEX_PLUGIN_SETUP_IMPL(name, author, description) \
namespace { static struct EXIT_HANDLER { ~EXIT_HANDLER() { hex::log::debug("Unloaded plugin '{}'", name); } } HANDLER; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX const char *getPluginName() { return name; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX const char *getPluginAuthor() { return author; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX const char *getPluginDescription() { return description; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX const char *getCompatibleVersion() { return IMHEX_VERSION; } \
IMHEX_PLUGIN_VISIBILITY_PREFIX void setImGuiContext(ImGuiContext *ctx) { \
ImGui::SetCurrentContext(ctx); \
GImGui = ctx; \
} \
IMHEX_PLUGIN_VISIBILITY_PREFIX void* getFeatures() { \
return PluginFeatureFunctionHelper<PluginFunctionHelperInstantiation>::getFeatures(); \
} \
IMHEX_PLUGIN_VISIBILITY_PREFIX void* getSubCommands() { \
return PluginSubCommandsFunctionHelper<PluginFunctionHelperInstantiation>::getSubCommands(); \
} \
IMHEX_PLUGIN_VISIBILITY_PREFIX void initializePlugin(); \
extern "C" [[gnu::visibility("default")]] void WOLV_TOKEN_CONCAT(forceLinkPlugin_, IMHEX_PLUGIN_NAME)() { \
hex::PluginManager::addPlugin(name, hex::PluginFunctions { \
initializePlugin, \
nullptr, \
getPluginName, \
nullptr, \
getPluginAuthor, \
getPluginDescription, \
getCompatibleVersion, \
setImGuiContext, \
nullptr, \
getSubCommands, \
getFeatures \
}); \
} \
IMHEX_PLUGIN_VISIBILITY_PREFIX void initializePlugin()
/**
* This macro is used to define subcommands defined by the plugin
* A subcommand consists of a key, a description, and a callback
* The key is what the first argument to ImHex should be, prefixed by `--`
* For example, if the key if `help`, ImHex should be started with `--help` as its first argument to trigger the subcommand
* when the subcommand is triggerred, it's callback will be executed. The callback is executed BEFORE most of ImHex initialization
* so to do anything meaningful, you should subscribe to an event (like EventImHexStartupFinished) and run your code there.
*/
#define IMHEX_PLUGIN_SUBCOMMANDS() IMHEX_PLUGIN_SUBCOMMANDS_IMPL()
#define IMHEX_PLUGIN_SUBCOMMANDS_IMPL() \
extern std::vector<hex::SubCommand> g_subCommands; \
template<> \
struct PluginSubCommandsFunctionHelper<PluginFunctionHelperInstantiation> { \
static void* getSubCommands(); \
}; \
void* PluginSubCommandsFunctionHelper<PluginFunctionHelperInstantiation>::getSubCommands() { \
return &g_subCommands; \
} \
std::vector<hex::SubCommand> g_subCommands
#define IMHEX_FEATURE_ENABLED(feature) WOLV_TOKEN_CONCAT(WOLV_TOKEN_CONCAT(WOLV_TOKEN_CONCAT(IMHEX_PLUGIN_, IMHEX_PLUGIN_NAME), _FEATURE_), feature)
#define IMHEX_PLUGIN_FEATURES() IMHEX_PLUGIN_FEATURES_IMPL()
#define IMHEX_PLUGIN_FEATURES_IMPL() \
extern std::vector<hex::Feature> g_features; \
template<> \
struct PluginFeatureFunctionHelper<PluginFunctionHelperInstantiation> { \
static void* getFeatures(); \
}; \
void* PluginFeatureFunctionHelper<PluginFunctionHelperInstantiation>::getFeatures() { \
return &g_features; \
} \
std::vector<hex::Feature> g_features