// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.

#pragma once

#include "Engine/Core/Types/BaseTypes.h"
#include "Engine/Core/Math/Color32.h"
#include "Engine/Core/Math/Vector2.h"
#include "Engine/Core/Delegate.h"

API_INJECT_CODE(cpp, "#include \"Engine/Platform/ScreenUtilities.h\"");

/// <summary>
/// Platform-dependent screen utilities.
/// </summary>
API_CLASS(Static, Name="ScreenUtilities", Tag="NativeInvokeUseName")
class FLAXENGINE_API ScreenUtilitiesBase
{
public:
    static struct FLAXENGINE_API ScriptingTypeInitializer TypeInitializer;
    
    /// <summary>
    /// Gets the pixel color at the specified coordinates.
    /// </summary>
    /// <param name="pos">Screen-space coordinate to read.</param>
    /// <returns>Pixel color at the specified coordinates.</returns>
    API_FUNCTION() static Color32 GetColorAt(const Float2& pos)
    {
        return Color32::Transparent;
    }

    /// <summary>
    /// Starts async color picking. Color will be returned through PickColorDone event when the actions ends (user selected the final color with a mouse). When action is active, GetColorAt can be used to read the current value.
    /// </summary>
    API_FUNCTION() static void PickColor()
    {
    }

    /// <summary>
    /// Called when PickColor action is finished.
    /// </summary>
    API_EVENT() static Delegate<Color32> PickColorDone;
};