COM3D2.MeidoPhotoStudio/src/MeidoPhotoStudio.Plugin/GUI/Windows/BaseWindow.cs

using System.Collections.Generic;

using UnityEngine;

namespace MeidoPhotoStudio.Plugin;

public abstract class BaseWindow : BasePane
{
    public readonly int WindowID = ID;

    protected readonly List<BasePane> Panes = new();

    protected Vector2 scrollPos;
    protected Rect windowRect = new(0f, 0f, 480f, 270f);

    private static int id = 765;

    public bool ActiveWindow { get; set; }

    public virtual Rect WindowRect
    {
        get => windowRect;
        set
        {
            value.x =
                Mathf.Clamp(value.x, -value.width + Utility.GetPix(20), Screen.width - Utility.GetPix(20));

            value.y =
                Mathf.Clamp(value.y, -value.height + Utility.GetPix(20), Screen.height - Utility.GetPix(20));

            windowRect = value;
        }
    }

    protected Vector2 MiddlePosition =>
        new((float)Screen.width / 2 - windowRect.width / 2, (float)Screen.height / 2 - windowRect.height / 2);

    private static int ID =>
        id++;

    public virtual void Update() =>
        HandleZoom();

    public virtual void GUIFunc(int id)
    {
        Draw();
        GUI.DragWindow();
    }

    public virtual void UpdatePanes()
    {
        foreach (var pane in Panes)
            pane.UpdatePane();
    }

    public override void SetParent(BaseWindow window)
    {
        foreach (var pane in Panes)
            pane.SetParent(window);
    }

    public override void Activate()
    {
        base.Activate();

        foreach (var pane in Panes)
            pane.Activate();
    }

    public override void Deactivate()
    {
        base.Deactivate();

        foreach (var pane in Panes)
            pane.Deactivate();
    }

    protected T AddPane<T>(T pane)
        where T : BasePane
    {
        Panes.Add(pane);
        pane.SetParent(this);

        return pane;
    }

    private void HandleZoom()
    {
        if (Input.mouseScrollDelta.y is 0f || !Visible)
            return;

        var mousePos = new Vector2(Input.mousePosition.x, Screen.height - Input.mousePosition.y);

        if (WindowRect.Contains(mousePos))
            Input.ResetInputAxes();
    }
}