/// <summary>
/// Creates the visual elements tree for the title bar.
/// </summary>
private VisualElement CreateTitlebar()
{
var background = new BorderedRectangle(TitlebarBackgroundColor, TitlebarBorderColor, 0);
background.style.height = 34;
var paddedContainer = new VisualElement();
paddedContainer.Set().Padding(4);
paddedContainer.StretchToParentSize();
paddedContainer.style.flexDirection = FlexDirection.Row;
RegisterMove(paddedContainer);
var leftContainer = HUMRetained.Container();
leftContainer.style.position = Position.Relative;
leftContainer.style.flexDirection = FlexDirection.Row;
leftContainer.style.flexGrow = 1;
var icon = new Image();
icon.image = headerIcon;
icon.style.flexDirection = FlexDirection.Row;
icon.style.position = Position.Relative;
icon.style.height = 34;
icon.style.width = 34;
icon.Set().Padding(4);
var headerTitle = label;
headerTitle.style.flexDirection = FlexDirection.Row;
headerTitle.style.position = Position.Relative;
headerTitle.Set().Padding(4);
if (headerIcon == null)
{
headerTitle.style.paddingLeft = 10;
}
background.style.height = 40;
background.Add(paddedContainer);
if (headerIcon != null)
{
leftContainer.Add(icon);
}
leftContainer.Add(headerTitle);
leftContainer.AlignItems(Align.Center);
leftContainer.Justification(Justify.FlexStart);
leftContainer.style.unityTextAlign = TextAnchor.MiddleCenter;
var rightContainer = WindowStatus();
paddedContainer.Add(leftContainer);
paddedContainer.Add(rightContainer);
paddedContainer.AlignItems(Align.Center);
paddedContainer.Justification(Justify.FlexEnd);
return(background);
}