// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.

#pragma once

#include "Window.h"
#include "CriticalSection.h"

/// <summary>
/// Window objects manager service.
/// </summary>
class WindowsManager
{
public:

    /// <summary>
    /// The window objects collection mutex.
    /// </summary>
    static CriticalSection WindowsLocker;

    /// <summary>
    /// The window objects collection.
    /// </summary>
    static Array<Window*, HeapAllocation> Windows;

public:

    /// <summary>
    /// Gets the window by native handle.
    /// </summary>
    /// <param name="handle">The native window handle.</param>
    /// <returns>Found window or null if cannot find it.</returns>
    static Window* GetByNativePtr(void* handle);

    /// <summary>
    /// Calculates the position for window that has given size and should be placed in the center of the primary screen.
    /// </summary>
    /// <param name="size">The size.</param>
    /// <returns>window location.</returns>
    static Vector2 CalcCenteredWinPos(const Vector2& size);

public:

    // Used by WindowBase
    static void Register(Window* win);
    static void Unregister(Window* win);
};