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using Foundation;
using Xamarin.Forms.Internals;
#if __MOBILE__
using UIKit;
namespace Xamarin.Forms.Platform.iOS
#else
using AppKit;
using UIColor = AppKit.NSColor;
namespace Xamarin.Forms.Platform.MacOS
#endif
{
public static class FormattedStringExtensions
{
public static NSAttributedString ToAttributed(this Span span, Font defaultFont, Color defaultForegroundColor)
{
if (span == null)
return null;
#pragma warning disable 0618 //retaining legacy call to obsolete code
var font = span.Font != Font.Default ? span.Font : defaultFont;
#pragma warning restore 0618
var fgcolor = span.ForegroundColor;
if (fgcolor.IsDefault)
fgcolor = defaultForegroundColor;
if (fgcolor.IsDefault)
fgcolor = Color.Black; // as defined by apple docs
#if __MOBILE__
return new NSAttributedString(span.Text, font == Font.Default ? null : font.ToUIFont(), fgcolor.ToUIColor(), span.BackgroundColor.ToUIColor());
#else
return new NSAttributedString(span.Text, font == Font.Default ? null : font.ToNSFont(), fgcolor.ToNSColor(),
span.BackgroundColor.ToNSColor());
#endif
}
public static NSAttributedString ToAttributed(this FormattedString formattedString, Font defaultFont,
Color defaultForegroundColor)
{
if (formattedString == null)
return null;
var attributed = new NSMutableAttributedString();
foreach (var span in formattedString.Spans)
{
if (span.Text == null)
continue;
attributed.Append(span.ToAttributed(defaultFont, defaultForegroundColor));
}
return attributed;
}
internal static NSAttributedString ToAttributed(this Span span, Element owner, Color defaultForegroundColor)
{
if (span == null)
return null;
#if __MOBILE__
UIFont targetFont;
if (span.IsDefault())
targetFont = ((IFontElement)owner).ToUIFont();
else
targetFont = span.ToUIFont();
var fgcolor = span.ForegroundColor;
if (fgcolor.IsDefault)
fgcolor = defaultForegroundColor;
if (fgcolor.IsDefault)
fgcolor = Color.Black; // as defined by apple docs
return new NSAttributedString(span.Text, targetFont, fgcolor.ToUIColor(), span.BackgroundColor.ToUIColor());
#else
NSFont targetFont;
if (span.IsDefault())
targetFont = ((IFontElement)owner).ToNSFont();
else
targetFont = span.ToNSFont();
var fgcolor = span.ForegroundColor;
if (fgcolor.IsDefault)
fgcolor = defaultForegroundColor;
if (fgcolor.IsDefault)
fgcolor = Color.Black; // as defined by apple docs
return new NSAttributedString(span.Text, targetFont, fgcolor.ToNSColor(), span.BackgroundColor.ToNSColor());
#endif
}
internal static NSAttributedString ToAttributed(this FormattedString formattedString, Element owner,
Color defaultForegroundColor)
{
if (formattedString == null)
return null;
var attributed = new NSMutableAttributedString();
foreach (var span in formattedString.Spans)
{
if (span.Text == null)
continue;
attributed.Append(span.ToAttributed(owner, defaultForegroundColor));
}
return attributed;
}
}
}
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