[C] support more color format in ColorTypeConverter (#784)
* [C] support more color format in ColorTypeConverter * [C] Parse numbers in InvariantCulture * more tests
This commit is contained in:
Stephane Delcroix
Jason Smith
Родитель
badc2e0378
Коммит
837929478e
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@ -241,19 +241,34 @@ namespace Xamarin.Forms.Core.UnitTests
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}
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[Test]
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public void TestColorTypeConverter ()
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public void TestColorTypeConverter()
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{
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var converter = new ColorTypeConverter ();
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Assert.True (converter.CanConvertFrom (typeof(string)));
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Assert.AreEqual (Color.Blue, converter.ConvertFromInvariantString ("Color.Blue"));
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Assert.AreEqual (Color.Blue, converter.ConvertFromInvariantString ("Blue"));
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Assert.AreEqual (Color.Blue, converter.ConvertFromInvariantString ("#0000ff"));
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Assert.AreEqual (Color.Default, converter.ConvertFromInvariantString ("Color.Default"));
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Assert.AreEqual (Color.Accent, converter.ConvertFromInvariantString ("Accent"));
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var hotpink = Color.FromHex ("#FF69B4");
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var converter = new ColorTypeConverter();
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Assert.True(converter.CanConvertFrom(typeof(string)));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("Color.Blue"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("Blue"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("blue"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("#0000ff"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("#00f"));
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Assert.AreEqual(Color.Blue.MultiplyAlpha(2.0 / 3.0), converter.ConvertFromInvariantString("#a00f"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("rgb(0,0, 255)"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("rgb(0,0, 300)"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("rgb(0,0, 300)"));
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Assert.AreEqual(Color.Blue.MultiplyAlpha(.8), converter.ConvertFromInvariantString("rgba(0%,0%, 100%, .8)"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("rgb(0%,0%, 110%)"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("hsl(240,100%, 50%)"));
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Assert.AreEqual(Color.Blue, converter.ConvertFromInvariantString("hsl(240,110%, 50%)"));
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Assert.AreEqual(Color.Blue.MultiplyAlpha(.8), converter.ConvertFromInvariantString("hsla(240,100%, 50%, .8)"));
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Assert.AreEqual(Color.Default, converter.ConvertFromInvariantString("Color.Default"));
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Assert.AreEqual(Color.Accent, converter.ConvertFromInvariantString("Accent"));
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var hotpink = Color.FromHex("#FF69B4");
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Color.Accent = hotpink;
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Assert.AreEqual (Color.Accent, converter.ConvertFromInvariantString ("Accent"));
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Assert.Throws<InvalidOperationException> (() => converter.ConvertFromInvariantString (""));
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Assert.AreEqual(Color.Accent, converter.ConvertFromInvariantString("Accent"));
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Assert.AreEqual(Color.Default, converter.ConvertFromInvariantString("#12345"));
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Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString(""));
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Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("rgb(0,0,255"));
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Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("hsl(12, 100%)"));
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Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("rgba(0,0,255)"));
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}
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[Test]
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@ -262,7 +277,5 @@ namespace Xamarin.Forms.Core.UnitTests
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Assert.AreEqual (Color.Default, default(Color));
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Assert.AreEqual (Color.Default, new Color ());
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}
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}
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}
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}
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@ -299,17 +299,20 @@ namespace Xamarin.Forms
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public static Color FromHex(string hex)
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{
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hex = hex.Replace("#", "");
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switch (hex.Length)
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{
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case 3: //#rgb => ffrrggbb
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hex = string.Format("ff{0}{1}{2}{3}{4}{5}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2]);
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break;
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case 4: //#argb => aarrggbb
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hex = string.Format("{0}{1}{2}{3}{4}{5}{6}{7}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2], hex[3], hex[3]);
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break;
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case 6: //#rrggbb => ffrrggbb
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hex = string.Format("ff{0}", hex);
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break;
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switch (hex.Length) {
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case 3: //#rgb => ffrrggbb
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hex = string.Format("ff{0}{1}{2}{3}{4}{5}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2]);
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break;
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case 4: //#argb => aarrggbb
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hex = string.Format("{0}{1}{2}{3}{4}{5}{6}{7}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2], hex[3], hex[3]);
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break;
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case 6: //#rrggbb => ffrrggbb
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hex = string.Format("ff{0}", hex);
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break;
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case 8: //#aarrggbb
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break;
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default: //everything else will result in unexpected results
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return Default;
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}
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return FromUint(Convert.ToUInt32(hex, 16));
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}
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@ -1,170 +1,238 @@
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using System;
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using System.Linq;
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using System.Globalization;
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namespace Xamarin.Forms
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{
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[Xaml.ProvideCompiled("Xamarin.Forms.Core.XamlC.ColorTypeConverter")]
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public class ColorTypeConverter : TypeConverter
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{
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// Supported inputs
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// HEX #rgb, #argb, #rrggbb, #aarrggbb
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// RGB rgb(255,0,0), rgb(100%,0%,0%) values in range 0-255 or 0%-100%
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// RGBA rgba(255, 0, 0, 0.8), rgba(100%, 0%, 0%, 0.8) opacity is 0.0-1.0
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// HSL hsl(120, 100%, 50%) h is 0-360, s and l are 0%-100%
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// HSLA hsla(120, 100%, 50%, .8) opacity is 0.0-1.0
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// Predefined color case insensitive
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public override object ConvertFromInvariantString(string value)
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{
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if (value != null)
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{
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if (value.Trim().StartsWith("#", StringComparison.Ordinal))
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value = value.Trim();
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if (value.StartsWith("#", StringComparison.Ordinal))
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return Color.FromHex(value);
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if (value.StartsWith("rgba", StringComparison.OrdinalIgnoreCase)) {
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var op = value.IndexOf('(');
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var cp = value.LastIndexOf(')');
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if (op < 0 || cp < 0 || cp < op)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var quad = value.Substring(op + 1, cp - op - 1).Split(',');
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if (quad.Length != 4)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var r = ParseColorValue(quad[0], 255, acceptPercent: true);
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var g = ParseColorValue(quad[1], 255, acceptPercent: true);
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var b = ParseColorValue(quad[2], 255, acceptPercent: true);
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var a = ParseOpacity(quad[3]);
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return new Color(r, g, b, a);
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}
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if (value.StartsWith("rgb", StringComparison.OrdinalIgnoreCase)) {
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var op = value.IndexOf('(');
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var cp = value.LastIndexOf(')');
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if (op < 0 || cp < 0 || cp < op)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var triplet = value.Substring(op + 1, cp - op - 1).Split(',');
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if (triplet.Length != 3)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var r = ParseColorValue(triplet[0], 255, acceptPercent: true);
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var g = ParseColorValue(triplet[1], 255, acceptPercent: true);
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var b = ParseColorValue(triplet[2], 255, acceptPercent: true);
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return new Color(r, g, b);
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}
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if (value.StartsWith("hsla", StringComparison.OrdinalIgnoreCase)) {
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var op = value.IndexOf('(');
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var cp = value.LastIndexOf(')');
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if (op < 0 || cp < 0 || cp < op)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var quad = value.Substring(op + 1, cp - op - 1).Split(',');
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if (quad.Length != 4)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var h = ParseColorValue(quad[0], 360, acceptPercent: false);
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var s = ParseColorValue(quad[1], 100, acceptPercent: true);
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var l = ParseColorValue(quad[2], 100, acceptPercent: true);
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var a = ParseOpacity(quad[3]);
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return Color.FromHsla(h, s, l, a);
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}
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if (value.StartsWith("hsl", StringComparison.OrdinalIgnoreCase)) {
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var op = value.IndexOf('(');
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var cp = value.LastIndexOf(')');
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if (op < 0 || cp < 0 || cp < op)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var triplet = value.Substring(op + 1, cp - op - 1).Split(',');
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if (triplet.Length != 3)
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throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
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var h = ParseColorValue(triplet[0], 360, acceptPercent: false);
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var s = ParseColorValue(triplet[1], 100, acceptPercent: true);
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var l = ParseColorValue(triplet[2], 100, acceptPercent: true);
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return Color.FromHsla(h, s, l);
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}
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string[] parts = value.Split('.');
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if (parts.Length == 1 || (parts.Length == 2 && parts[0] == "Color"))
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{
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string color = parts[parts.Length - 1];
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switch (color) {
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case "Default": return Color.Default;
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case "Accent": return Color.Accent;
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case "AliceBlue": return Color.AliceBlue;
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case "AntiqueWhite": return Color.AntiqueWhite;
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case "Aqua": return Color.Aqua;
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case "Aquamarine": return Color.Aquamarine;
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case "Azure": return Color.Azure;
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case "Beige": return Color.Beige;
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case "Bisque": return Color.Bisque;
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case "Black": return Color.Black;
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case "BlanchedAlmond": return Color.BlanchedAlmond;
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case "Blue": return Color.Blue;
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case "BlueViolet": return Color.BlueViolet;
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case "Brown": return Color.Brown;
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case "BurlyWood": return Color.BurlyWood;
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case "CadetBlue": return Color.CadetBlue;
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case "Chartreuse": return Color.Chartreuse;
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case "Chocolate": return Color.Chocolate;
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case "Coral": return Color.Coral;
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case "CornflowerBlue": return Color.CornflowerBlue;
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case "Cornsilk": return Color.Cornsilk;
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case "Crimson": return Color.Crimson;
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case "Cyan": return Color.Cyan;
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case "DarkBlue": return Color.DarkBlue;
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case "DarkCyan": return Color.DarkCyan;
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case "DarkGoldenrod": return Color.DarkGoldenrod;
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case "DarkGray": return Color.DarkGray;
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case "DarkGreen": return Color.DarkGreen;
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case "DarkKhaki": return Color.DarkKhaki;
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case "DarkMagenta": return Color.DarkMagenta;
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case "DarkOliveGreen": return Color.DarkOliveGreen;
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case "DarkOrange": return Color.DarkOrange;
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case "DarkOrchid": return Color.DarkOrchid;
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case "DarkRed": return Color.DarkRed;
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case "DarkSalmon": return Color.DarkSalmon;
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case "DarkSeaGreen": return Color.DarkSeaGreen;
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case "DarkSlateBlue": return Color.DarkSlateBlue;
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case "DarkSlateGray": return Color.DarkSlateGray;
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case "DarkTurquoise": return Color.DarkTurquoise;
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case "DarkViolet": return Color.DarkViolet;
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case "DeepPink": return Color.DeepPink;
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case "DeepSkyBlue": return Color.DeepSkyBlue;
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case "DimGray": return Color.DimGray;
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case "DodgerBlue": return Color.DodgerBlue;
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case "Firebrick": return Color.Firebrick;
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case "FloralWhite": return Color.FloralWhite;
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case "ForestGreen": return Color.ForestGreen;
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case "Fuchsia": return Color.Fuchsia;
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case "Gainsboro": return Color.Gainsboro;
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case "GhostWhite": return Color.GhostWhite;
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case "Gold": return Color.Gold;
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case "Goldenrod": return Color.Goldenrod;
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case "Gray": return Color.Gray;
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case "Green": return Color.Green;
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case "GreenYellow": return Color.GreenYellow;
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case "Honeydew": return Color.Honeydew;
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case "HotPink": return Color.HotPink;
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case "IndianRed": return Color.IndianRed;
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case "Indigo": return Color.Indigo;
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case "Ivory": return Color.Ivory;
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case "Khaki": return Color.Khaki;
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case "Lavender": return Color.Lavender;
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case "LavenderBlush": return Color.LavenderBlush;
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case "LawnGreen": return Color.LawnGreen;
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case "LemonChiffon": return Color.LemonChiffon;
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case "LightBlue": return Color.LightBlue;
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case "LightCoral": return Color.LightCoral;
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case "LightCyan": return Color.LightCyan;
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case "LightGoldenrodYellow": return Color.LightGoldenrodYellow;
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case "LightGray": return Color.LightGray;
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case "LightGreen": return Color.LightGreen;
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case "LightPink": return Color.LightPink;
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case "LightSalmon": return Color.LightSalmon;
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case "LightSeaGreen": return Color.LightSeaGreen;
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case "LightSkyBlue": return Color.LightSkyBlue;
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case "LightSlateGray": return Color.LightSlateGray;
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case "LightSteelBlue": return Color.LightSteelBlue;
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case "LightYellow": return Color.LightYellow;
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case "Lime": return Color.Lime;
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case "LimeGreen": return Color.LimeGreen;
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case "Linen": return Color.Linen;
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case "Magenta": return Color.Magenta;
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case "Maroon": return Color.Maroon;
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case "MediumAquamarine": return Color.MediumAquamarine;
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case "MediumBlue": return Color.MediumBlue;
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case "MediumOrchid": return Color.MediumOrchid;
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case "MediumPurple": return Color.MediumPurple;
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case "MediumSeaGreen": return Color.MediumSeaGreen;
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case "MediumSlateBlue": return Color.MediumSlateBlue;
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case "MediumSpringGreen": return Color.MediumSpringGreen;
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case "MediumTurquoise": return Color.MediumTurquoise;
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case "MediumVioletRed": return Color.MediumVioletRed;
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case "MidnightBlue": return Color.MidnightBlue;
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case "MintCream": return Color.MintCream;
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case "MistyRose": return Color.MistyRose;
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case "Moccasin": return Color.Moccasin;
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case "NavajoWhite": return Color.NavajoWhite;
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case "Navy": return Color.Navy;
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case "OldLace": return Color.OldLace;
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case "Olive": return Color.Olive;
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case "OliveDrab": return Color.OliveDrab;
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case "Orange": return Color.Orange;
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case "OrangeRed": return Color.OrangeRed;
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case "Orchid": return Color.Orchid;
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case "PaleGoldenrod": return Color.PaleGoldenrod;
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case "PaleGreen": return Color.PaleGreen;
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case "PaleTurquoise": return Color.PaleTurquoise;
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case "PaleVioletRed": return Color.PaleVioletRed;
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case "PapayaWhip": return Color.PapayaWhip;
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case "PeachPuff": return Color.PeachPuff;
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case "Peru": return Color.Peru;
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case "Pink": return Color.Pink;
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case "Plum": return Color.Plum;
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case "PowderBlue": return Color.PowderBlue;
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case "Purple": return Color.Purple;
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case "Red": return Color.Red;
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case "RosyBrown": return Color.RosyBrown;
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case "RoyalBlue": return Color.RoyalBlue;
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case "SaddleBrown": return Color.SaddleBrown;
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case "Salmon": return Color.Salmon;
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case "SandyBrown": return Color.SandyBrown;
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case "SeaGreen": return Color.SeaGreen;
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case "SeaShell": return Color.SeaShell;
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case "Sienna": return Color.Sienna;
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case "Silver": return Color.Silver;
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case "SkyBlue": return Color.SkyBlue;
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case "SlateBlue": return Color.SlateBlue;
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case "SlateGray": return Color.SlateGray;
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case "Snow": return Color.Snow;
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case "SpringGreen": return Color.SpringGreen;
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case "SteelBlue": return Color.SteelBlue;
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case "Tan": return Color.Tan;
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case "Teal": return Color.Teal;
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case "Thistle": return Color.Thistle;
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case "Tomato": return Color.Tomato;
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case "Transparent": return Color.Transparent;
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case "Turquoise": return Color.Turquoise;
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case "Violet": return Color.Violet;
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case "Wheat": return Color.Wheat;
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case "White": return Color.White;
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case "WhiteSmoke": return Color.WhiteSmoke;
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case "Yellow": return Color.Yellow;
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case "YellowGreen": return Color.YellowGreen;
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switch (color.ToLowerInvariant()) {
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case "default": return Color.Default;
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case "accent": return Color.Accent;
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case "aliceblue": return Color.AliceBlue;
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case "antiquewhite": return Color.AntiqueWhite;
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case "aqua": return Color.Aqua;
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case "aquamarine": return Color.Aquamarine;
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case "azure": return Color.Azure;
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case "beige": return Color.Beige;
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case "bisque": return Color.Bisque;
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case "black": return Color.Black;
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case "blanchedalmond": return Color.BlanchedAlmond;
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case "blue": return Color.Blue;
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case "blueViolet": return Color.BlueViolet;
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case "brown": return Color.Brown;
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case "burlywood": return Color.BurlyWood;
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case "cadetblue": return Color.CadetBlue;
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case "chartreuse": return Color.Chartreuse;
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case "chocolate": return Color.Chocolate;
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case "coral": return Color.Coral;
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case "cornflowerblue": return Color.CornflowerBlue;
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case "cornsilk": return Color.Cornsilk;
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case "crimson": return Color.Crimson;
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case "cyan": return Color.Cyan;
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case "darkblue": return Color.DarkBlue;
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case "darkcyan": return Color.DarkCyan;
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case "darkgoldenrod": return Color.DarkGoldenrod;
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case "darkgray": return Color.DarkGray;
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case "darkgreen": return Color.DarkGreen;
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case "darkkhaki": return Color.DarkKhaki;
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case "darkmagenta": return Color.DarkMagenta;
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case "darkolivegreen": return Color.DarkOliveGreen;
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case "darkorange": return Color.DarkOrange;
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case "darkorchid": return Color.DarkOrchid;
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case "darkred": return Color.DarkRed;
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case "darksalmon": return Color.DarkSalmon;
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case "darkseagreen": return Color.DarkSeaGreen;
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case "darkslateblue": return Color.DarkSlateBlue;
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case "darkslategray": return Color.DarkSlateGray;
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case "darkturquoise": return Color.DarkTurquoise;
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case "darkviolet": return Color.DarkViolet;
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case "deeppink": return Color.DeepPink;
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case "deepskyblue": return Color.DeepSkyBlue;
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case "dimgray": return Color.DimGray;
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case "dodgerblue": return Color.DodgerBlue;
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case "firebrick": return Color.Firebrick;
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case "floralwhite": return Color.FloralWhite;
|
||||
case "forestgreen": return Color.ForestGreen;
|
||||
case "fuchsia": return Color.Fuchsia;
|
||||
case "gainsboro": return Color.Gainsboro;
|
||||
case "ghostwhite": return Color.GhostWhite;
|
||||
case "gold": return Color.Gold;
|
||||
case "goldenrod": return Color.Goldenrod;
|
||||
case "gray": return Color.Gray;
|
||||
case "green": return Color.Green;
|
||||
case "greenyellow": return Color.GreenYellow;
|
||||
case "honeydew": return Color.Honeydew;
|
||||
case "hotpink": return Color.HotPink;
|
||||
case "indianred": return Color.IndianRed;
|
||||
case "indigo": return Color.Indigo;
|
||||
case "ivory": return Color.Ivory;
|
||||
case "khaki": return Color.Khaki;
|
||||
case "lavender": return Color.Lavender;
|
||||
case "lavenderblush": return Color.LavenderBlush;
|
||||
case "lawngreen": return Color.LawnGreen;
|
||||
case "lemonchiffon": return Color.LemonChiffon;
|
||||
case "lightblue": return Color.LightBlue;
|
||||
case "lightcoral": return Color.LightCoral;
|
||||
case "lightcyan": return Color.LightCyan;
|
||||
case "lightgoldenrodyellow": return Color.LightGoldenrodYellow;
|
||||
case "lightgray": return Color.LightGray;
|
||||
case "lightgreen": return Color.LightGreen;
|
||||
case "lightpink": return Color.LightPink;
|
||||
case "lightsalmon": return Color.LightSalmon;
|
||||
case "lightseagreen": return Color.LightSeaGreen;
|
||||
case "lightskyblue": return Color.LightSkyBlue;
|
||||
case "lightslategray": return Color.LightSlateGray;
|
||||
case "lightsteelblue": return Color.LightSteelBlue;
|
||||
case "lightyellow": return Color.LightYellow;
|
||||
case "lime": return Color.Lime;
|
||||
case "limegreen": return Color.LimeGreen;
|
||||
case "linen": return Color.Linen;
|
||||
case "magenta": return Color.Magenta;
|
||||
case "maroon": return Color.Maroon;
|
||||
case "mediumaquamarine": return Color.MediumAquamarine;
|
||||
case "mediumblue": return Color.MediumBlue;
|
||||
case "mediumorchid": return Color.MediumOrchid;
|
||||
case "mediumpurple": return Color.MediumPurple;
|
||||
case "mediumseagreen": return Color.MediumSeaGreen;
|
||||
case "mediumslateblue": return Color.MediumSlateBlue;
|
||||
case "mediumspringgreen": return Color.MediumSpringGreen;
|
||||
case "mediumturquoise": return Color.MediumTurquoise;
|
||||
case "mediumvioletred": return Color.MediumVioletRed;
|
||||
case "midnightblue": return Color.MidnightBlue;
|
||||
case "mintcream": return Color.MintCream;
|
||||
case "mistyrose": return Color.MistyRose;
|
||||
case "moccasin": return Color.Moccasin;
|
||||
case "navajowhite": return Color.NavajoWhite;
|
||||
case "navy": return Color.Navy;
|
||||
case "oldlace": return Color.OldLace;
|
||||
case "olive": return Color.Olive;
|
||||
case "olivedrab": return Color.OliveDrab;
|
||||
case "orange": return Color.Orange;
|
||||
case "orangered": return Color.OrangeRed;
|
||||
case "orchid": return Color.Orchid;
|
||||
case "palegoldenrod": return Color.PaleGoldenrod;
|
||||
case "palegreen": return Color.PaleGreen;
|
||||
case "paleturquoise": return Color.PaleTurquoise;
|
||||
case "palevioletred": return Color.PaleVioletRed;
|
||||
case "papayawhip": return Color.PapayaWhip;
|
||||
case "peachpuff": return Color.PeachPuff;
|
||||
case "peru": return Color.Peru;
|
||||
case "pink": return Color.Pink;
|
||||
case "plum": return Color.Plum;
|
||||
case "powderblue": return Color.PowderBlue;
|
||||
case "purple": return Color.Purple;
|
||||
case "red": return Color.Red;
|
||||
case "rosybrown": return Color.RosyBrown;
|
||||
case "royalblue": return Color.RoyalBlue;
|
||||
case "saddlebrown": return Color.SaddleBrown;
|
||||
case "salmon": return Color.Salmon;
|
||||
case "sandybrown": return Color.SandyBrown;
|
||||
case "seagreen": return Color.SeaGreen;
|
||||
case "seashell": return Color.SeaShell;
|
||||
case "sienna": return Color.Sienna;
|
||||
case "silver": return Color.Silver;
|
||||
case "skyblue": return Color.SkyBlue;
|
||||
case "slateblue": return Color.SlateBlue;
|
||||
case "slategray": return Color.SlateGray;
|
||||
case "snow": return Color.Snow;
|
||||
case "springgreen": return Color.SpringGreen;
|
||||
case "steelblue": return Color.SteelBlue;
|
||||
case "tan": return Color.Tan;
|
||||
case "teal": return Color.Teal;
|
||||
case "thistle": return Color.Thistle;
|
||||
case "tomato": return Color.Tomato;
|
||||
case "transparent": return Color.Transparent;
|
||||
case "turquoise": return Color.Turquoise;
|
||||
case "violet": return Color.Violet;
|
||||
case "wheat": return Color.Wheat;
|
||||
case "white": return Color.White;
|
||||
case "whitesmoke": return Color.WhiteSmoke;
|
||||
case "yellow": return Color.Yellow;
|
||||
case "yellowgreen": return Color.YellowGreen;
|
||||
}
|
||||
var field = typeof(Color).GetFields().FirstOrDefault(fi => fi.IsStatic && fi.Name == color);
|
||||
var field = typeof(Color).GetFields().FirstOrDefault(fi => fi.IsStatic && string.Equals(fi.Name, color, StringComparison.OrdinalIgnoreCase));
|
||||
if (field != null)
|
||||
return (Color)field.GetValue(null);
|
||||
var property = typeof(Color).GetProperties().FirstOrDefault(pi => pi.Name == color && pi.CanRead && pi.GetMethod.IsStatic);
|
||||
var property = typeof(Color).GetProperties().FirstOrDefault(pi => string.Equals(pi.Name, color, StringComparison.OrdinalIgnoreCase) && pi.CanRead && pi.GetMethod.IsStatic);
|
||||
if (property != null)
|
||||
return (Color)property.GetValue(null, null);
|
||||
}
|
||||
|
|
@ -172,5 +240,20 @@ namespace Xamarin.Forms
|
|||
|
||||
throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Color)}");
|
||||
}
|
||||
|
||||
static double ParseColorValue(string elem, int maxValue, bool acceptPercent)
|
||||
{
|
||||
elem = elem.Trim();
|
||||
if (elem.EndsWith("%", StringComparison.Ordinal) && acceptPercent) {
|
||||
maxValue = 100;
|
||||
elem = elem.Substring(0, elem.Length - 1);
|
||||
}
|
||||
return (double)(int.Parse(elem, NumberStyles.Number, CultureInfo.InvariantCulture).Clamp(0, maxValue)) / maxValue;
|
||||
}
|
||||
|
||||
static double ParseOpacity(string elem)
|
||||
{
|
||||
return double.Parse(elem, NumberStyles.Number, CultureInfo.InvariantCulture).Clamp(0, 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
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