235d8e043f
This helps with creation and getting values and should be safe since it still keeps lvgl on one thread at a time. Add OnLvglEvent to UIElement that allows foreasy place for UI Elements to respond to LVGL events . Add button class that can react to being presssed via a callback function. Add GetBottom() api to allow easy grabbing of bottom Y coordinate. use some new stuff in the settings page to sort test it all out.
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#pragma once
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#include <functional>
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#include <mutex>
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#include <queue>
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namespace UI {
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class UIBase;
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} // namespace UI
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class LvglResourceManger {
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friend UI::UIBase;
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public:
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static LvglResourceManger &GetInstance() {
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static LvglResourceManger mInstance;
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return mInstance;
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}
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[[nodiscard]] std::scoped_lock<std::recursive_mutex> scopeLock() {
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return std::scoped_lock(mLvglMutex);
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}
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void AttemptNow(std::function<void()> aLvglModifierFunction) {
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// Attempt to take mutex and preform op if you can't then queue up.
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if (mLvglMutex.try_lock()) {
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aLvglModifierFunction();
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mLvglMutex.unlock();
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} else {
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QueueForLater(aLvglModifierFunction);
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}
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}
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void QueueForLater(std::function<void()> aLvglModifierFunction) {
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mLvglTasks.push(std::move(aLvglModifierFunction));
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}
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protected:
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LvglResourceManger(){};
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void HandleQueuedTasks() {
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auto lock = scopeLock();
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while (!mLvglTasks.empty()) {
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mLvglTasks.front()();
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mLvglTasks.pop();
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}
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}
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std::queue<std::function<void()>> mLvglTasks;
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std::recursive_mutex mLvglMutex;
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};
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