diff options
Diffstat (limited to 'Xamarin.Forms.Platform.WP8/BrushHelpers.cs')
-rw-r--r-- | Xamarin.Forms.Platform.WP8/BrushHelpers.cs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WP8/BrushHelpers.cs b/Xamarin.Forms.Platform.WP8/BrushHelpers.cs new file mode 100644 index 00000000..993b23f4 --- /dev/null +++ b/Xamarin.Forms.Platform.WP8/BrushHelpers.cs @@ -0,0 +1,37 @@ +using System; +using System.Windows.Media; + +namespace Xamarin.Forms.Platform.WinPhone +{ + internal static class BrushHelpers + { + /// <summary> + /// Handles the logic for setting a Xamarin.Forms Color for a Brush + /// while caching the original default brush + /// </summary> + /// <param name="color">The target Xamarin.Forms.Color</param> + /// <param name="defaultbrush">The renderer's cache for the default brush</param> + /// <param name="getter">Delegate for retrieving the Control's current Brush</param> + /// <param name="setter">Delegate for setting the Control's Brush</param> + public static void UpdateColor(Color color, ref Brush defaultbrush, Func<Brush> getter, Action<Brush> setter) + { + if (color.IsDefault) + { + if (defaultbrush == null) + { + return; + } + + setter(defaultbrush); + return; + } + + if (defaultbrush == null) + { + defaultbrush = getter(); + } + + setter(color.ToBrush()); + } + } +} |