Initial commit

main/display/lvgl_display/gif/lvgl_gif.h

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