internal static Xamarin.Forms.Size Measure(ExtraView view)
{
var display = (Context as Activity)?.WindowManager.DefaultDisplay;
Point size = new Point();
display.GetSize(size);
var dWidth = Context.FromPixels(size.X);
var dHeight = Context.FromPixels(size.Y);
var fWidth = view.ProportionalWidth >= 0 ? dWidth * view.ProportionalWidth : dWidth;
var fHeight = view.ProportionalHeight >= 0 ? dHeight * view.ProportionalHeight : dHeight;
if (view.ProportionalWidth < 0 || view.ProportionalHeight < 0)
{
var sizeRequest = view.Measure(fWidth, fHeight);
var reqWidth = view.ProportionalWidth >= 0 ? fWidth : sizeRequest.Request.Width;
var reqHeight = view.ProportionalHeight >= 0 ? fHeight : sizeRequest.Request.Height;
return(new XF.Size(reqWidth, reqHeight));
}
return(new XF.Size(fWidth, fHeight));
}
internal static Size Measure(ExtraView view)
{
var window = UIApplication.SharedApplication.KeyWindow;
var dWidth = window.Bounds.Width;
var dHeight = window.Bounds.Height;
double fWidth = dWidth;
if (view.ProportionalWidth >= 0)
{
fWidth = dWidth * view.ProportionalWidth;
}
else if (view.HorizontalLayoutAlignment == LayoutAlignment.Fill)
{
fWidth = dWidth;
}
else if (view.WidthRequest == -1)
{
fWidth = double.PositiveInfinity;
}
else if (view.WidthRequest >= 0)
{
fWidth = view.WidthRequest;
}
double fHeight = dHeight;
if (view.ProportionalHeight >= 0)
{
fHeight = dHeight * view.ProportionalHeight;
}
else if (view.VerticalLayoutAlignment == LayoutAlignment.Fill)
{
fHeight = dHeight;
}
else if (view.HeightRequest == -1)
{
fHeight = double.PositiveInfinity;
}
else if (view.HeightRequest >= 0)
{
fHeight = view.HeightRequest;
}
if (view.ProportionalWidth < 0 || view.ProportionalHeight < 0)
{
var sizeRequest = view.Measure(fWidth, fHeight, MeasureFlags.IncludeMargins);
var reqWidth = view.ProportionalWidth >= 0 ? fWidth : sizeRequest.Request.Width;
var reqHeight = view.ProportionalHeight >= 0 ? fHeight : sizeRequest.Request.Height;
return(new Size(reqWidth, reqHeight));
}
// If both width and height are proportional, Measure is not called.
return(new Size(fWidth, fHeight));
}
internal static Xamarin.Forms.Size Measure(ExtraView view)
{
var dWidth = Context.FromPixels(ContentSize.Width);
var dHeight = Context.FromPixels(ContentSize.Height);
double fWidth = dWidth;
if (view.ProportionalWidth >= 0)
{
fWidth = dWidth * view.ProportionalWidth;
}
else if (view.HorizontalLayoutAlignment == XF.LayoutAlignment.Fill)
{
fWidth = dWidth;
}
else if (view.WidthRequest == -1)
{
fWidth = double.PositiveInfinity;
}
else if (view.WidthRequest >= 0)
{
fWidth = view.WidthRequest;
}
double fHeight = dHeight;
if (view.ProportionalHeight >= 0)
{
fHeight = dHeight * view.ProportionalHeight;
}
else if (view.VerticalLayoutAlignment == XF.LayoutAlignment.Fill)
{
fHeight = dHeight;
}
else if (view.HeightRequest == -1)
{
fHeight = double.PositiveInfinity;
}
else if (view.HeightRequest >= 0)
{
fHeight = view.HeightRequest;
}
if (view.ProportionalWidth < 0 || view.ProportionalHeight < 0)
{
var sizeRequest = view.Measure(fWidth, fHeight, XF.MeasureFlags.IncludeMargins);
var reqWidth = view.ProportionalWidth >= 0 ? fWidth : sizeRequest.Request.Width;
var reqHeight = view.ProportionalHeight >= 0 ? fHeight : sizeRequest.Request.Height;
return(new XF.Size(reqWidth, reqHeight));
}
return(new XF.Size(fWidth, fHeight));
}
internal static ViewGroup SetViewAppearance(ExtraView formsView, ViewGroup nativeView)
{
if (formsView.CornerRadius > 0 && formsView.BorderWidth > 0)
{
var wrapper = new CardView(Context);
wrapper.Radius = Context.ToPixels(formsView.CornerRadius);
wrapper.SetCardBackgroundColor(formsView.BorderColor.ToAndroid());
wrapper.CardElevation = 0;
var borderW = (int)Context.ToPixels(formsView.BorderWidth);
wrapper.SetContentPadding(borderW, borderW, borderW, borderW);
wrapper.SetClipChildren(true);
var inner = nativeView;
var border = new GradientDrawable();
var innerRadius = Math.Max(formsView.CornerRadius - formsView.BorderWidth, 0);
border.SetCornerRadius(Context.ToPixels(innerRadius));
if (!formsView.BackgroundColor.IsDefault)
{
border.SetColor(formsView.BackgroundColor.ToAndroid());
}
inner.SetBackground(border);
inner.ClipToOutline = true;
wrapper.AddView(inner);
return(wrapper);
}
if (formsView.CornerRadius > 0 || formsView.BorderWidth > 0)
{
var border = new GradientDrawable();
if (formsView.CornerRadius > 0)
{
border.SetCornerRadius(Context.ToPixels(formsView.CornerRadius));
}
if (!formsView.BackgroundColor.IsDefault)
{
border.SetColor(formsView.BackgroundColor.ToAndroid());
}
if (formsView.BorderWidth > 0)
{
var borderW = (int)Context.ToPixels(formsView.BorderWidth);
border.SetStroke(borderW, formsView.BorderColor.ToAndroid());
nativeView.SetPadding(borderW, borderW, borderW, borderW);
}
nativeView.SetBackground(border);
nativeView.ClipToOutline = true;
}
return(nativeView);
}
internal static Size Measure(ExtraView view)
{
var window = UIApplication.SharedApplication.KeyWindow;
var dWidth = window.Bounds.Width;
var dHeight = window.Bounds.Height;
var fWidth = view.ProportionalWidth >= 0 ? dWidth * view.ProportionalWidth : dWidth;
var fHeight = view.ProportionalHeight >= 0 ? dHeight * view.ProportionalHeight : dHeight;
if (view.ProportionalWidth < 0 || view.ProportionalHeight < 0)
{
var sizeRequest = view.Measure(fWidth, fHeight);
var reqWidth = view.ProportionalWidth >= 0 ? fWidth : sizeRequest.Request.Width;
var reqHeight = view.ProportionalHeight >= 0 ? fHeight : sizeRequest.Request.Height;
return(new Size(reqWidth, reqHeight));
}
// If both width and height are proportional, Measure is not called.
return(new Size(fWidth, fHeight));
}
internal static GravityFlags GetGravity(ExtraView view)
{
GravityFlags gravity = GravityFlags.NoGravity;
switch (view.VerticalLayoutAlignment)
{
case XF.LayoutAlignment.Start:
gravity |= GravityFlags.Top;
break;
case XF.LayoutAlignment.End:
gravity |= GravityFlags.Bottom;
break;
default:
gravity |= GravityFlags.CenterVertical;
break;
}
switch (view.HorizontalLayoutAlignment)
{
case XF.LayoutAlignment.Start:
gravity |= GravityFlags.Left;
break;
case XF.LayoutAlignment.End:
gravity |= GravityFlags.Right;
break;
default:
gravity |= GravityFlags.CenterHorizontal;
break;
}
return(gravity);
}
internal static void SetOffsetMargin(FrameLayout.LayoutParams layoutParams, ExtraView view)
{
var offsetX = (int)Context.ToPixels(view.OffsetX);
var offsetY = (int)Context.ToPixels(view.OffsetY);
// the offset direction is reversed when GravityFlags contains Left or Bottom.
if (view.HorizontalLayoutAlignment == XF.LayoutAlignment.End)
{
layoutParams.RightMargin = offsetX * -1;
}
else
{
layoutParams.LeftMargin = offsetX;
}
if (view.VerticalLayoutAlignment == XF.LayoutAlignment.End)
{
layoutParams.BottomMargin = offsetY * -1;
}
else
{
layoutParams.TopMargin = offsetY;
}
}
internal static void SetLayoutAlignment(UIView targetView, UIView parentView, ExtraView dialog)
{
switch (dialog.VerticalLayoutAlignment)
{
case Xamarin.Forms.LayoutAlignment.Start:
targetView.TopAnchor.ConstraintEqualTo(parentView.TopAnchor, dialog.OffsetY).Active = true;
break;
case Xamarin.Forms.LayoutAlignment.End:
targetView.BottomAnchor.ConstraintEqualTo(parentView.BottomAnchor, dialog.OffsetY).Active = true;
break;
default:
targetView.CenterYAnchor.ConstraintEqualTo(parentView.CenterYAnchor, dialog.OffsetY).Active = true;
break;
}
switch (dialog.HorizontalLayoutAlignment)
{
case Xamarin.Forms.LayoutAlignment.Start:
targetView.LeftAnchor.ConstraintEqualTo(parentView.LeftAnchor, dialog.OffsetX).Active = true;
break;
case Xamarin.Forms.LayoutAlignment.End:
targetView.RightAnchor.ConstraintEqualTo(parentView.RightAnchor, dialog.OffsetX).Active = true;
break;
default:
targetView.CenterXAnchor.ConstraintEqualTo(parentView.CenterXAnchor, dialog.OffsetX).Active = true;
break;
}
}
