Method Arrange

Source/Engine/UI/GUI/Panels/DropPanel.cs:589–628

()

        }

        private void Arrange()
        {
            // Arrange anchored controls
            GetDesireClientArea(out var clientArea);
            float dropOffset = _cachedHeight * (_isClosed ? _animationProgress : 1.0f - _animationProgress);
            clientArea.Location.Y -= dropOffset;
            UpdateChildrenBounds();

            // Arrange scrollable controls
            var slotsMargin = _itemsMargin;
            var slotsLeft = clientArea.Left + slotsMargin.Left;
            var slotsWidth = clientArea.Width - slotsMargin.Width;
            float minHeight = HeaderHeight;
            float y = clientArea.Top + slotsMargin.Top;
            bool anyAdded = false;
            for (int i = 0; i < _children.Count; i++)
            {
                Control c = _children[i];
                if (c.IsScrollable && c.Visible)
                {
                    var h = c.Height;
                    c.Bounds = new Rectangle(slotsLeft, y, slotsWidth, h);
                    h += _itemsSpacing;
                    y += h;
                    anyAdded = true;
                }
            }

            // Update panel height
            if (anyAdded)
                y -= _itemsSpacing;
            if (anyAdded)
                y += slotsMargin.Bottom;
            float height = dropOffset + y;
            _cachedHeight = height;
            if (_animationProgress >= 1.0f && _isClosed)
                y = minHeight;
            var size = new Float2(Width, Mathf.Max(minHeight, y));
            Resize(ref size);
        }

        /// <inheritdoc />
        protected override void PerformLayoutBeforeChildren()