public override void Draw(Batcher batcher, float parentAlpha)
{
// update our hoved item if the mouse is over the list
if (_isMouseOverList)
{
var mousePos = ScreenToLocalCoordinates(stage.GetMousePosition());
_hoveredItemIndex = GetItemIndexUnderMousePosition(mousePos);
}
Validate();
var font = _style.Font;
var selectedDrawable = _style.Selection;
var color = GetColor();
color = new Color(color, (int)(color.A * parentAlpha));
float x = GetX(), y = GetY(), width = GetWidth(), height = GetHeight();
var itemY = 0f;
var background = _style.Background;
if (background != null)
{
background.Draw(batcher, x, y, width, height, color);
var leftWidth = background.LeftWidth;
x += leftWidth;
itemY += background.TopHeight;
width -= leftWidth + background.RightWidth;
}
var unselectedFontColor =
new Color(_style.FontColorUnselected, (int)(_style.FontColorUnselected.A * parentAlpha));
var selectedFontColor =
new Color(_style.FontColorSelected, (int)(_style.FontColorSelected.A * parentAlpha));
var hoveredFontColor = new Color(_style.FontColorHovered, (int)(_style.FontColorHovered.A * parentAlpha));
Color fontColor;
for (var i = 0; i < _items.Count; i++)
{
if (!_cullingArea.HasValue ||
(itemY - _itemHeight <= _cullingArea.Value.Y + _cullingArea.Value.Height &&
itemY >= _cullingArea.Value.Y))
{
var item = _items[i];
var selected = _selection.Contains(item);
if (selected)
{
selectedDrawable.Draw(batcher, x, y + itemY, width, _itemHeight, color);
fontColor = selectedFontColor;
}
else if (i == _hoveredItemIndex && _style.HoverSelection != null)
{
_style.HoverSelection.Draw(batcher, x, y + itemY, width, _itemHeight, color);
fontColor = hoveredFontColor;
}
else
{
fontColor = unselectedFontColor;
}
var textPos = new Vector2(x + _textOffsetX, y + itemY + _textOffsetY);
batcher.DrawString(font, item.ToString(), textPos, fontColor);
}
else if (itemY < _cullingArea.Value.Y)
{
break;
}
itemY += _itemHeight;
}
}