ProfilerPanel.h

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/**
 * @file ProfilerPanel.h
 * @brief ImGui profiler panel for ATS VS node execution metrics (Phase 5).
 * @author Olympe Engine
 * @date 2026-03-09
 *
 * @details C++14 compliant.
 */
 
#pragma once
 
#include <string>
 
namespace Olympe {
 
/**
 * @class ProfilerPanel
 * @brief ImGui panel that visualizes PerformanceProfiler data.
 *
 * @details
 * Renders a frame timeline bar chart and a hotspot table sorted by
 * average execution time descending.  Provides an "Export CSV" button
 * that calls PerformanceProfiler::SaveToFile().
 */
class ProfilerPanel {
public:
 
    ProfilerPanel();
    ~ProfilerPanel();
 
    void Initialize();
    void Shutdown();
 
    /**
     * @brief Renders the profiler panel window.
     */
    void Render();
 
    void SetVisible(bool v) { m_visible = v; }
    bool IsVisible() const  { return m_visible; }
 
private:
 
    void RenderControls();
    void RenderFrameTimeline();
    void RenderHotspotTable();
 
    bool        m_visible          = true;
    bool        m_autoScroll       = true;
    int         m_historyCount     = 60;   ///< Frames shown in timeline
};
 
} // namespace Olympe