GUICustomComponent.cs

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
 
namespace Barotrauma
{
    class GUICustomComponent : GUIComponent
    {
        public Action<SpriteBatch, GUICustomComponent> OnDraw;
        public Action<float, GUICustomComponent> OnUpdate;
 
        public bool HideElementsOutsideFrame;
 
        public GUICustomComponent(RectTransform rectT, Action<SpriteBatch, GUICustomComponent> onDraw = null, Action<float, GUICustomComponent> onUpdate = null) : base(null, rectT)
        {
            OnDraw = onDraw;
            OnUpdate = onUpdate;
        }
 
        protected override void Draw(SpriteBatch spriteBatch)
        {
            if (!Visible) return;
 
            Rectangle prevScissorRect = spriteBatch.GraphicsDevice.ScissorRectangle;
            if (HideElementsOutsideFrame)
            {
                spriteBatch.End();
                spriteBatch.GraphicsDevice.ScissorRectangle = Rectangle.Intersect(prevScissorRect, Rect);
                spriteBatch.Begin(SpriteSortMode.Deferred, samplerState: GUI.SamplerState, rasterizerState: GameMain.ScissorTestEnable);
            }
 
            OnDraw?.Invoke(spriteBatch, this);
 
            if (HideElementsOutsideFrame)
            {
                spriteBatch.End();
                spriteBatch.GraphicsDevice.ScissorRectangle = prevScissorRect;
                spriteBatch.Begin(SpriteSortMode.Deferred, samplerState: GUI.SamplerState, rasterizerState: GameMain.ScissorTestEnable);
            }
        }
 
        protected override void Update(float deltaTime)
        {
            if (Visible) OnUpdate?.Invoke(deltaTime, this);
        }
    }
}