Repo created

libs/drape_frontend/animation/show_hide_animation.hpp

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+#pragma once
+
+#include "drape/pointers.hpp"
+
+#include <array>
+
+namespace df
+{
+class ShowHideAnimation
+{
+public:
+  enum EState
+  {
+    STATE_INVISIBLE,
+    STATE_VISIBLE,
+    STATE_SHOW_DIRECTION,
+    STATE_HIDE_DIRECTION
+  };
+
+  ShowHideAnimation(bool isInitialVisible, double fullDuration);
+  ~ShowHideAnimation();
+
+  void Show();
+  void ShowAnimated();
+  void Hide();
+  void HideAnimated();
+  EState GetState() const;
+  double GetT() const;
+  bool IsFinished() const;
+
+private:
+  void RefreshInterpolator(std::array<EState, 2> validStates, double endValue);
+  class ShowHideInterpolator;
+
+  drape_ptr<ShowHideInterpolator> m_interpolator;
+  ShowHideAnimation::EState m_state;
+  double m_fullDuration;
+};
+}  // namespace df