OmniaFramework/src/ostd/utils/Signals.hpp

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/*
OmniaFramework - A collection of useful functionality
Copyright (C) 2025 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/data/Types.hpp>
#include <ostd/data/BaseObject.hpp>
namespace ostd
{
struct BuiltinSignals
{
inline static constexpr u32 NoSignal = 0x0000;
/** Builtin Signals **/
inline static constexpr u32 KeyPressed = 0x0001;
inline static constexpr u32 KeyReleased = 0x0002;
inline static constexpr u32 MousePressed = 0x0003;
inline static constexpr u32 MouseReleased = 0x0004;
inline static constexpr u32 MouseMoved = 0x0005;
inline static constexpr u32 MouseDragged = 0x0006;
inline static constexpr u32 TextEntered = 0x0007;
inline static constexpr u32 MouseScrolled = 0x0008;
inline static constexpr u32 OnGuiEvent = 0x2001;
inline static constexpr u32 FileDragAndDropped = 0x2002;
inline static constexpr u32 TextDragAndDropped = 0x2003;
inline static constexpr u32 BeforeSDLShutdown = 0x3001;
inline static constexpr u32 WindowResized = 0x1001;
inline static constexpr u32 WindowClosed = 0x1002;
inline static constexpr u32 WindowFocused = 0x1003;
inline static constexpr u32 WindowLostFocus = 0x1004;
/*********************/
inline static constexpr u32 CustomSignalBase = 0xFF0000;
};
struct Signal
{
struct Priority
{
inline static constexpr u8 RealTime = 0;
inline static constexpr u8 Normal = 1;
};
const u8 priority;
const u32 ID;
bool handled { false };
BaseObject& userData;
inline Signal(u32 id, BaseObject& _userData = BaseObject::InvalidRef(), u8 prio = Signal::Priority::Normal) : priority(prio), ID(id), userData(_userData) { }
};
class SignalHandler
{
private: struct DelegateSignal
{
u32 id;
BaseObject& ud;
inline DelegateSignal(u32 _id, BaseObject& _ud) : id(_id), ud(_ud) { }
};
public:
static void init(bool allow_reinit = false);
static void handleDelegateSignals(void);
static void emitSignal(u32 signal_id, u8 prio = Signal::Priority::RealTime, BaseObject& userData = BaseObject::InvalidRef());
static void connect(BaseObject& object, u32 signal_id);
static void disconnect(BaseObject& object, u32 signal_id);
inline static u32 newCustomSignal(u32 sub_id) { return BuiltinSignals::CustomSignalBase + sub_id; }
private:
inline static stdumap<u32, stdvec<BaseObject*>> m_recievers;
inline static stdvec<DelegateSignal> m_DelegateRecievers;
inline static constexpr u16 __SIGNAL_BUFFER_START_SIZE { 2048 };
inline static constexpr u16 __DELEGATE_SIGNALS_BUFFER_START_SIZE { 2048 };
inline static bool m_initialized { false };
};
}