151 lines
3.9 KiB
C++
151 lines
3.9 KiB
C++
#pragma once
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#include "fl/namespace.h"
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#include "fl/screenmap.h"
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#include "fl/singleton.h"
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#include "fl/vector.h"
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#include "fl/xymap.h"
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#include "fl/string.h"
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#include "fl/int.h"
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#ifndef FASTLED_HAS_ENGINE_EVENTS
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#define FASTLED_HAS_ENGINE_EVENTS SKETCH_HAS_LOTS_OF_MEMORY
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#endif // FASTLED_HAS_ENGINE_EVENTS
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FASTLED_NAMESPACE_BEGIN
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class CLEDController;
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FASTLED_NAMESPACE_END
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namespace fl {
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class EngineEvents {
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public:
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class Listener {
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public:
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// Note that the subclass must call EngineEvents::addListener(this) to
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// start listening. In the subclass destructor, the subclass should call
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// EngineEvents::removeListener(this).
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Listener();
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virtual ~Listener();
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virtual void onBeginFrame() {}
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virtual void onEndShowLeds() {}
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virtual void onEndFrame() {}
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virtual void onStripAdded(CLEDController *strip, fl::u32 num_leds) {
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(void)strip;
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(void)num_leds;
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}
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// Called to set the canvas for UI elements for a particular strip.
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virtual void onCanvasUiSet(CLEDController *strip,
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const ScreenMap &screenmap) {
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(void)strip;
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(void)screenmap;
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}
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virtual void onPlatformPreLoop() {}
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virtual void onPlatformPreLoop2() {}
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};
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static void addListener(Listener *listener, int priority = 0) {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_addListener(listener, priority);
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#else
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(void)listener;
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(void)priority;
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#endif
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}
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static void removeListener(Listener *listener) {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_removeListener(listener);
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#else
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(void)listener;
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#endif
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}
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static bool hasListener(Listener *listener) {
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#if FASTLED_HAS_ENGINE_EVENTS
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return EngineEvents::getInstance()->_hasListener(listener);
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#else
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(void)listener;
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return false;
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#endif
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}
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static void onBeginFrame() {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onBeginFrame();
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#endif
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}
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static void onEndShowLeds() {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onEndShowLeds();
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#endif
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}
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static void onEndFrame() {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onEndFrame();
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#endif
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}
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static void onStripAdded(CLEDController *strip, fl::u32 num_leds) {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onStripAdded(strip, num_leds);
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#else
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(void)strip;
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(void)num_leds;
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#endif
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}
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static void onCanvasUiSet(CLEDController *strip, const ScreenMap &xymap) {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onCanvasUiSet(strip, xymap);
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#else
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(void)strip;
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(void)xymap;
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#endif
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}
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static void onPlatformPreLoop() {
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#if FASTLED_HAS_ENGINE_EVENTS
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EngineEvents::getInstance()->_onPlatformPreLoop();
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#endif
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}
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// Needed by fl::vector<T>
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EngineEvents() = default;
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private:
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// Safe to add a listeners during a callback.
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void _addListener(Listener *listener, int priority);
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// Safe to remove self during a callback.
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void _removeListener(Listener *listener);
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void _onBeginFrame();
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void _onEndShowLeds();
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void _onEndFrame();
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void _onStripAdded(CLEDController *strip, fl::u32 num_leds);
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void _onCanvasUiSet(CLEDController *strip, const ScreenMap &xymap);
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void _onPlatformPreLoop();
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bool _hasListener(Listener *listener);
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#if FASTLED_HAS_ENGINE_EVENTS
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struct Pair {
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Pair() = default;
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Listener *listener = nullptr;
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int priority = 0;
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Pair(Listener *listener, int priority)
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: listener(listener), priority(priority) {}
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};
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typedef fl::vector_inlined<Pair, 16> ListenerList;
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ListenerList mListeners;
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static EngineEvents *getInstance();
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friend class fl::Singleton<EngineEvents>;
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#endif // FASTLED_HAS_ENGINE_EVENTS
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};
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} // namespace fl
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