#pragma once
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#include "../lvgl_image.h"
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#include "gifdec.h"
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#include <lvgl.h>
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#include <memory>
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#include <functional>
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/**
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* C++ implementation of LVGL GIF widget
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* Provides GIF animation functionality using gifdec library
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*/
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class LvglGif {
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public:
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explicit LvglGif(const lv_img_dsc_t* img_dsc);
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virtual ~LvglGif();
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// LvglImage interface implementation
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virtual const lv_img_dsc_t* image_dsc() const;
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/**
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* Start/restart GIF animation
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*/
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void Start();
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/**
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* Pause GIF animation
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*/
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void Pause();
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/**
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* Resume GIF animation
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*/
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void Resume();
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/**
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* Stop GIF animation and rewind to first frame
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*/
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void Stop();
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/**
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* Check if GIF is currently playing
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*/
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bool IsPlaying() const;
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/**
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* Check if GIF was loaded successfully
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*/
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bool IsLoaded() const;
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/**
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* Get loop count
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*/
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int32_t GetLoopCount() const;
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/**
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* Set loop count
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*/
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void SetLoopCount(int32_t count);
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/**
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* Get loop delay in milliseconds (delay between loops)
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*/
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uint32_t GetLoopDelay() const;
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/**
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* Set loop delay in milliseconds (delay between loops)
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* @param delay_ms Delay in milliseconds before starting next loop. 0 means no delay.
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*/
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void SetLoopDelay(uint32_t delay_ms);
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/**
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* Get GIF dimensions
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*/
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uint16_t width() const;
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uint16_t height() const;
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/**
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* Set frame update callback
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*/
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void SetFrameCallback(std::function<void()> callback);
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private:
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// GIF decoder instance
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gd_GIF* gif_;
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// LVGL image descriptor
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lv_img_dsc_t img_dsc_;
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// Animation timer
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lv_timer_t* timer_;
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// Last frame update time
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uint32_t last_call_;
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// Animation state
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bool playing_;
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bool loaded_;
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// Loop delay configuration
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uint32_t loop_delay_ms_; // Delay between loops in milliseconds
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bool loop_waiting_; // Whether we're waiting for the next loop
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uint32_t loop_wait_start_; // Timestamp when loop wait started
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// Frame update callback
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std::function<void()> frame_callback_;
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/**
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* Update to next frame
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*/
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void NextFrame();
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/**
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* Cleanup resources
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*/
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void Cleanup();
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};
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