public SizeRequest Measure(double widthConstraint, double heightConstraint, MeasureFlags flags = MeasureFlags.None)
{
bool includeMargins = (flags & MeasureFlags.IncludeMargins) != 0;
Thickness margin = default(Thickness);
if (includeMargins)
{
var view = this as View;
if (view != null)
{
margin = view.Margin;
}
widthConstraint = Math.Max(0, widthConstraint - margin.HorizontalThickness);
heightConstraint = Math.Max(0, heightConstraint - margin.VerticalThickness);
}
#pragma warning disable 0618 // retain until GetSizeRequest removed
SizeRequest result = GetSizeRequest(widthConstraint, heightConstraint);
#pragma warning restore 0618
if (includeMargins)
{
if (!margin.IsDefault)
{
result.Minimum = new Size(result.Minimum.Width + margin.HorizontalThickness, result.Minimum.Height + margin.VerticalThickness);
result.Request = new Size(result.Request.Width + margin.HorizontalThickness, result.Request.Height + margin.VerticalThickness);
}
}
return(result);
}
public SizeRequest Measure(double widthConstraint, double heightConstraint, MeasureFlags flags = MeasureFlags.None)
{
bool includeMargins = (flags & MeasureFlags.IncludeMargins) != 0;
Thickness margin = default(Thickness);
if (includeMargins)
{
var view = this as View;
if (view != null)
margin = view.Margin;
widthConstraint = Math.Max(0, widthConstraint - margin.HorizontalThickness);
heightConstraint = Math.Max(0, heightConstraint - margin.VerticalThickness);
}
#pragma warning disable 0618 // retain until GetSizeRequest removed
SizeRequest result = GetSizeRequest(widthConstraint, heightConstraint);
#pragma warning restore 0618
if (includeMargins)
{
if (!margin.IsDefault)
{
result.Minimum = new Size(result.Minimum.Width + margin.HorizontalThickness, result.Minimum.Height + margin.VerticalThickness);
result.Request = new Size(result.Request.Width + margin.HorizontalThickness, result.Request.Height + margin.VerticalThickness);
}
}
return result;
}
public static SizeRequest MeasureLabel(Label label, string text, double widthConstraint = double.PositiveInfinity, double heightConstraint = double.PositiveInfinity, MeasureFlags flags = MeasureFlags.IncludeMargins)
{
var key = new CachLabelMeasureKey
{
font = label.Font,
fontSize = label.FontSize,
fontFamily = label.FontFamily,
lineBreakMode = label.LineBreakMode,
text = text,
margin = label.Margin,
widthConstraint = widthConstraint,
heightConstraint = heightConstraint,
flags = flags,
};
SizeRequest size;
if (!CachLabelMeasure.TryGetValue(key, out size))
{
var extext = label.Text;
label.Text = text;
size = Measure(label, widthConstraint, heightConstraint, flags);
label.Text = extext;
CachLabelMeasure.Add(key, size);
}
return(size);
}
public static SizeRequest Measure(VisualElement view, double widthConstraint, double heightConstraint, MeasureFlags flags = MeasureFlags.IncludeMargins)
{
var req = view.Measure(double.PositiveInfinity, double.PositiveInfinity, MeasureFlags.IncludeMargins);
return(req);
}
