57 строки
1.5 KiB
C#
57 строки
1.5 KiB
C#
using System.ComponentModel;
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using System.Drawing;
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using AppKit;
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namespace Xamarin.Forms.Platform.MacOS
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{
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public class FrameRenderer : VisualElementRenderer<Frame>
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{
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protected override void OnElementChanged(ElementChangedEventArgs<Frame> e)
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{
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base.OnElementChanged(e);
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if (e.NewElement != null)
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SetupLayer();
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}
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protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
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{
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base.OnElementPropertyChanged(sender, e);
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if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName ||
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e.PropertyName == Xamarin.Forms.Frame.BorderColorProperty.PropertyName ||
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e.PropertyName == Xamarin.Forms.Frame.HasShadowProperty.PropertyName)
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SetupLayer();
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}
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void SetupLayer()
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{
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Layer.CornerRadius = 5;
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if (Element.BackgroundColor == Color.Default)
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Layer.BackgroundColor = NSColor.White.CGColor;
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else
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Layer.BackgroundColor = Element.BackgroundColor.ToCGColor();
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if (Element.HasShadow)
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{
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Layer.ShadowRadius = 5;
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Layer.ShadowColor = NSColor.Black.CGColor;
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Layer.ShadowOpacity = 0.8f;
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Layer.ShadowOffset = new SizeF();
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}
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else
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Layer.ShadowOpacity = 0;
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if (Element.BorderColor == Color.Default)
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Layer.BorderColor = NSColor.Clear.CGColor;
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else
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{
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Layer.BorderColor = Element.BorderColor.ToCGColor();
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Layer.BorderWidth = 1;
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}
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Layer.RasterizationScale = NSScreen.MainScreen.BackingScaleFactor;
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Layer.ShouldRasterize = true;
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}
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}
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} |