1 files changed, 62 insertions, 0 deletions
diff --git a/Backends/CairoBackend/src/Gradient.cs b/Backends/CairoBackend/src/Gradient.cs
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+++ b/Backends/CairoBackend/src/Gradient.cs
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+//
+// Mono.Cairo.Gradient.cs
+//
+// Author: Jordi Mas (jordi@ximian.com)
+//         Hisham Mardam Bey (hisham.mardambey@gmail.com)
+// (C) Ximian Inc, 2004.
+//
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using Drawing2D;
+
+namespace Crow.CairoBackend {
+
+	public class Gradient : Pattern, IGradient
+	{
+		protected Gradient (IntPtr handle, bool owned) : base (handle, owned)
+		{
+		}
+
+		public int ColorStopCount {
+			get {
+				int cnt;
+				NativeMethods.cairo_pattern_get_color_stop_count (handle, out cnt);
+				return cnt;
+			}
+		}
+		#region IGradient implementation
+		public void AddColorStop (double offset, Color c)
+			=> NativeMethods.cairo_pattern_add_color_stop_rgba (handle, offset, c.R / 255.0, c.G / 255.0, c.B / 255.0, c.A / 255.0);
+		public void AddColorStop(float offset, float r, float g, float b, float a = 1)
+			=> NativeMethods.cairo_pattern_add_color_stop_rgba (handle, offset, r, g, b, a);
+		#endregion
+
+		public Status AddColorStopRgb (double offset, Color c)
+		{
+			NativeMethods.cairo_pattern_add_color_stop_rgb (handle, offset, c.R / 255.0, c.G / 255.0 / 255.0, c.B / 255.0);
+			return Status;
+		}
+	}
+}
+