Protogame.ScrollableContainer.Render C# (CSharp) Méthode

        public virtual void Render(IRenderContext context, ISkinLayout skinLayout, ISkinDelegator skinDelegator, Rectangle layout)
        {
            var layoutWidth = layout.Width - skinLayout.HorizontalScrollBarHeight;
            var layoutHeight = layout.Height - skinLayout.VerticalScrollBarWidth;

            int childWidth, childHeight;
            if (!(_child is IHasDesiredSize))
            {
                childWidth = layoutWidth;
                childHeight = layoutHeight;
            }
            else
            {
                var hasDesiredSize = (IHasDesiredSize) _child;
                childWidth = hasDesiredSize.GetDesiredWidth(skinLayout) ?? layoutWidth;
                childHeight = hasDesiredSize.GetDesiredHeight(skinLayout) ?? layoutHeight;
                if (childWidth < layoutWidth)
                {
                    childWidth = layoutWidth;
                }
                if (childHeight < layoutHeight)
                {
                    childHeight = layoutHeight;
                }
            }

            if (_renderTarget == null || _renderTarget.Width != childWidth ||
                _renderTarget.Height != childHeight)
            {
                _renderTarget?.Dispose();

                _renderTarget = new RenderTarget2D(
                    context.GraphicsDevice,
                    Math.Max(1, childWidth),
                    Math.Max(1, childHeight));
            }
            
            context.SpriteBatch.End();
            context.PushRenderTarget(_renderTarget);
            context.GraphicsDevice.Clear(Color.Transparent);
            context.SpriteBatch.Begin();

            try
            {
                _child?.Render(
                    context,
                    skinLayout,
                    skinDelegator,
                    new Rectangle(0, 0, childWidth, childHeight));
            }
            finally
            {
                context.SpriteBatch.End();
                context.PopRenderTarget();
                context.SpriteBatch.Begin();
            }

            skinDelegator.Render(context, layout, this);
        }