120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
#pragma once
|
|
|
|
#include <hex.hpp>
|
|
|
|
#include <list>
|
|
#include <map>
|
|
#include <string_view>
|
|
#include <functional>
|
|
|
|
#include <hex/api/imhex_api.hpp>
|
|
|
|
#define EVENT_DEF(event_name, ...) \
|
|
struct event_name final : public hex::Event<__VA_ARGS__> { \
|
|
constexpr static auto id = [] { return hex::EventId(); }(); \
|
|
event_name(Callback func) noexcept : Event(func) { } \
|
|
};
|
|
|
|
class GLFWwindow;
|
|
|
|
namespace hex {
|
|
|
|
class EventId {
|
|
public:
|
|
explicit constexpr EventId(const char *func = __builtin_FUNCTION(), u32 line = __builtin_LINE()) {
|
|
this->m_hash = line ^ 123456789;
|
|
for (auto c : std::string_view(func)) {
|
|
this->m_hash = (this->m_hash >> 5) | (this->m_hash << 27);
|
|
this->m_hash ^= c;
|
|
}
|
|
}
|
|
|
|
constexpr bool operator ==(const EventId &rhs) const = default;
|
|
|
|
private:
|
|
u32 m_hash;
|
|
};
|
|
|
|
struct EventBase {
|
|
EventBase() noexcept = default;
|
|
};
|
|
|
|
template<typename ... Params>
|
|
struct Event : public EventBase {
|
|
using Callback = std::function<void(Params...)>;
|
|
|
|
explicit Event(Callback func) noexcept : m_func(std::move(func)) {}
|
|
|
|
void operator()(Params... params) const noexcept {
|
|
this->m_func(params...);
|
|
}
|
|
|
|
private:
|
|
Callback m_func;
|
|
};
|
|
|
|
class EventManager {
|
|
public:
|
|
using EventList = std::list<std::pair<EventId, EventBase*>>;
|
|
|
|
template<typename E>
|
|
[[nodiscard]] static EventList::iterator subscribe(typename E::Callback function) {
|
|
return s_events.insert(s_events.end(), std::make_pair(E::id, new E(function)));
|
|
}
|
|
|
|
template<typename E>
|
|
static void subscribe(void *token, typename E::Callback function) {
|
|
s_tokenStore.insert(std::make_pair(token, subscribe<E>(function)));
|
|
}
|
|
|
|
static void unsubscribe(EventList::iterator iter) noexcept {
|
|
s_events.remove(*iter);
|
|
}
|
|
|
|
template<typename E>
|
|
static void unsubscribe(void *token) noexcept {
|
|
auto iter = std::find_if(s_tokenStore.begin(), s_tokenStore.end(), [&](auto &item){
|
|
return item.first == token && item.second->first == E::id;
|
|
});
|
|
|
|
if (iter != s_tokenStore.end()) {
|
|
s_events.remove(*iter->second);
|
|
}
|
|
}
|
|
|
|
template<typename E>
|
|
static void post(auto&& ... args) noexcept {
|
|
for (const auto &[id, event] : s_events) {
|
|
if (id == E::id)
|
|
(*reinterpret_cast<E *>(event))(std::forward<decltype(args)>(args)...);
|
|
}
|
|
}
|
|
|
|
private:
|
|
static std::map<void*, EventList::iterator> s_tokenStore;
|
|
static EventList s_events;
|
|
};
|
|
|
|
/* Default Events */
|
|
EVENT_DEF(EventFileLoaded, std::string);
|
|
EVENT_DEF(EventFileUnloaded);
|
|
EVENT_DEF(EventDataChanged);
|
|
EVENT_DEF(EventPatternChanged);
|
|
EVENT_DEF(EventFileDropped, std::string);
|
|
EVENT_DEF(EventWindowClosing, GLFWwindow*);
|
|
EVENT_DEF(EventRegionSelected, Region);
|
|
EVENT_DEF(EventProjectFileStore);
|
|
EVENT_DEF(EventProjectFileLoad);
|
|
EVENT_DEF(EventSettingsChanged);
|
|
EVENT_DEF(EventAbnormalTermination, int);
|
|
|
|
EVENT_DEF(RequestOpenWindow, std::string);
|
|
EVENT_DEF(RequestSelectionChange, Region);
|
|
EVENT_DEF(RequestAddBookmark, ImHexApi::Bookmarks::Entry);
|
|
EVENT_DEF(RequestAppendPatternLanguageCode, std::string);
|
|
EVENT_DEF(RequestChangeWindowTitle, std::string);
|
|
EVENT_DEF(RequestCloseImHex, bool);
|
|
|
|
EVENT_DEF(QuerySelection, Region&);
|
|
|
|
} |