private Size GetApplicableSize(BasePageableItem item, PagerStyle style)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
var size = item.CustomSize ?? this.CustomSize;
if (size.HasValue)
{
return(size.Value);
}
else
{
switch (style)
{
case PagerStyle.Rectangle:
case PagerStyle.Oval:
return(new Size(8, 4));
case PagerStyle.Diamond:
return(new Size(6, 8));
case PagerStyle.Square:
case PagerStyle.Circle:
case PagerStyle.Star:
case PagerStyle.Triangle:
case PagerStyle.Heart:
default:
return(new Size(8, 8));
}
}
}
private void UpdateView(BasePageableItem item, bool selected, ShapeView view)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
var style = item.CustomPagerStyle ?? this.PagerStyle;
var color = selected ? item.CustomSelectedColor ?? this.CustomSelectedColor ?? Color.White : item.CustomUnselectedColor ?? this.CustomUnselectedColor ?? Color.FromRgba(1, 1, 1, 0.5);
var size = this.GetApplicableSize(item, style);
view.Color = color;
view.HeightRequest = size.Height;
view.WidthRequest = size.Width;
view.ClassId = selected.ToString();
switch (style)
{
case PagerStyle.Rectangle:
case PagerStyle.Square:
view.ShapeType = ShapeType.Box;
break;
case PagerStyle.RoundedRectangle:
case PagerStyle.RoundedSquare:
view.CornerRadius = (float)(size.Height + size.Width) / 10f;
break;
case PagerStyle.Star:
view.ShapeType = ShapeType.Star;
break;
case PagerStyle.Triangle:
view.ShapeType = ShapeType.Triangle;
break;
case PagerStyle.Oval:
view.ShapeType = ShapeType.Oval;
break;
case PagerStyle.Diamond:
view.ShapeType = ShapeType.Diamond;
break;
case PagerStyle.Heart:
view.ShapeType = ShapeType.Heart;
break;
case PagerStyle.Circle:
default:
view.ShapeType = ShapeType.Circle;
break;
}
}
private ShapeView GetApplicableView(BasePageableItem item, bool selected)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
var result = new ShapeView
{
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center
};
this.UpdateView(item, selected, result);
return(result);
}
