private FlexLine GenerateFlexLine(IList <View> children)
{
var flexLine = new FlexLine()
{
Orientation = Orientation,
AlignItems = AlignItems,
Spacing = Spacing,
BackgroundColor = Color.Transparent,
};
foreach (var child in children)
{
flexLine.Children.Add(child);
}
return(flexLine);
}
protected override void LayoutChildren(double x, double y, double width, double height)
{
IList <View> children = new List <View>();
SizeRequest childSizeRequest = default(SizeRequest);
foreach (var child in Children)
{
if (!child.IsVisible)
{
continue;
}
childSizeRequest = child.GetSizeRequest(double.PositiveInfinity, height);
double childWidth = childSizeRequest.Request.Width;
double childHeight = childSizeRequest.Request.Height;
if (x + childWidth >= width)
{
FlexLine flexLine = GenerateFlexLine(children);
SizeRequest flexLineSizeRequest = flexLine.GetSizeRequest(double.PositiveInfinity, height);
double flexLineWidth = childSizeRequest.Request.Width;
double flexLineHeight = childSizeRequest.Request.Height;
LayoutChildIntoBoundingRegion(flexLine, new Rectangle(0, y, width, flexLineHeight));
x = 0;
y += flexLineHeight; //DependingFlexOrientation(flexLine.CrossSize(height), flexLine.CrossSize(width));
children.Clear();
}
children.Add(child);
x += (childWidth + Spacing);
//DependingFlexOrientation(() => { x += (childWidth + Spacing); }, () => { y += (childHeight + Spacing); });
}
FlexLine lastFlexLine = GenerateFlexLine(children);
SizeRequest lastFlexLineSizeRequest = lastFlexLine.GetSizeRequest(double.PositiveInfinity, height);
double lastFlexLineWidth = childSizeRequest.Request.Width;
double lastFlexLineHeight = childSizeRequest.Request.Height;
LayoutChildIntoBoundingRegion(lastFlexLine, new Rectangle(0, y, width, lastFlexLineHeight));
}