94d75fa4d5
Create a mutex for UI that will help make it possible to run handlers that update UI elements on seprate threads. its far from perfect but should hold up for now.
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#include "KeyPressSim.hpp"
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#include "SimulatorSPSCQueue.hpp"
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#include <memory>
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KeyPressSim::KeyPressSim()
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: mKeyHandlerThread([this] {
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while (true) {
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HandleKeyPresses();
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std::this_thread::sleep_for(std::chrono::milliseconds(50));
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}
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}) {
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SDL_AddEventWatch(KeyPressSim::GrabKeyImpl, this);
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};
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int KeyPressSim::GrabKeyImpl(void *aSelf, SDL_Event *aEvent) {
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reinterpret_cast<KeyPressSim *>(aSelf)->GrabKeys(aEvent);
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return 0;
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}
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void KeyPressSim::GrabKeys(SDL_Event *aEvent) {
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if (aEvent->type == SDL_KEYDOWN || aEvent->type == SDL_KEYUP) {
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auto keyEventType = aEvent->type == SDL_KEYDOWN ? KeyEvent::Type::Press
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: KeyEvent::Type::Release;
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const auto SDLK_key = aEvent->key.keysym.sym;
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if (KeyMap.count(SDLK_key) > 0) {
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QueueKeyEvent(KeyEvent(KeyMap.at(SDLK_key), keyEventType));
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}
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}
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};
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void KeyPressSim::HandleKeyPresses() {
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std::lock_guard lock(mQueueGaurd);
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while (!mKeyEventQueue.empty()) {
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if (mKeyEventHandler) {
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mKeyEventHandler(mKeyEventQueue.front());
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}
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mKeyEventQueue.pop();
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}
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};
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void KeyPressSim::QueueKeyEvent(KeyEvent aJustOccuredKeyEvent) {
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std::lock_guard lock(mQueueGaurd);
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mKeyEventQueue.push(aJustOccuredKeyEvent);
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};
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