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Custom events are thread safe

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This commit is contained in:
Yousef Khadadeh 2026-04-17 11:12:48 +03:00
parent 518ecf2a8f
commit 5a0086c4ea
3 changed files with 19 additions and 23 deletions
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7
src/CustomEvents.cpp
View file

@ -5,7 +5,8 @@
namespace CustomEvents {
std::queue<std::any> eventDataQueue;
std::queue<std::shared_ptr<void>> eventDataQueue;
std::mutex eventDataQueueMutex;
bool alreadyInitialized = false;
@ -18,10 +19,6 @@ void init() {
}
}
void pop_event() {
eventDataQueue.pop();
}
uint32_t PasteEvent::EVENT_NUM;
uint32_t OpenInfiniPaintFileEvent::EVENT_NUM;
uint32_t AddFileToCanvasEvent::EVENT_NUM;

17
src/CustomEvents.hpp
View file

@ -1,34 +1,39 @@
#pragma once
#include <cstdint>
#include <memory>
#include <string>
#include <optional>
#include <queue>
#include <SDL3/SDL.h>
#include <SDL3/SDL_events.h>
#include <mutex>
#include "RichText/TextBox.hpp"
namespace CustomEvents {
void init();
extern std::queue<std::any> eventDataQueue;
extern std::queue<std::shared_ptr<void>> eventDataQueue;
extern std::mutex eventDataQueueMutex;
template <typename T> bool emit_event(const T& data) {
std::scoped_lock l{eventDataQueueMutex};
SDL_Event event;
SDL_zero(event);
event.type = T::EVENT_NUM;
if(SDL_PushEvent(&event)) {
eventDataQueue.push(data);
eventDataQueue.push(std::make_shared<T>(data));
return true;
}
return false;
}
template <typename T> const T& get_event() {
return std::any_cast<const T&>(eventDataQueue.front());
template <typename T> std::shared_ptr<T> get_event() {
std::scoped_lock l{eventDataQueueMutex};
std::shared_ptr<T> toRet = std::static_pointer_cast<T>(eventDataQueue.front());
eventDataQueue.pop();
return toRet;
}
void pop_event();
struct PasteEvent {
static uint32_t EVENT_NUM;
enum class DataType {

18
src/main.cpp
View file

@ -761,18 +761,12 @@ SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event) {
case SDL_EVENT_SCREEN_KEYBOARD_HIDDEN:
break;
default: {
if(event->type == CustomEvents::PasteEvent::EVENT_NUM) {
mS.m->input_paste_callback(CustomEvents::get_event<CustomEvents::PasteEvent>());
CustomEvents::pop_event();
}
else if(event->type == CustomEvents::OpenInfiniPaintFileEvent::EVENT_NUM) {
mS.m->input_open_infinipaint_file_callback(CustomEvents::get_event<CustomEvents::OpenInfiniPaintFileEvent>());
CustomEvents::pop_event();
}
else if(event->type == CustomEvents::AddFileToCanvasEvent::EVENT_NUM) {
mS.m->input_add_file_to_canvas_callback(CustomEvents::get_event<CustomEvents::AddFileToCanvasEvent>());
CustomEvents::pop_event();
}
if(event->type == CustomEvents::PasteEvent::EVENT_NUM)
mS.m->input_paste_callback(*CustomEvents::get_event<CustomEvents::PasteEvent>());
else if(event->type == CustomEvents::OpenInfiniPaintFileEvent::EVENT_NUM)
mS.m->input_open_infinipaint_file_callback(*CustomEvents::get_event<CustomEvents::OpenInfiniPaintFileEvent>());
else if(event->type == CustomEvents::AddFileToCanvasEvent::EVENT_NUM)
mS.m->input_add_file_to_canvas_callback(*CustomEvents::get_event<CustomEvents::AddFileToCanvasEvent>());
break;
}
}