121 строка
3.1 KiB
C#
121 строка
3.1 KiB
C#
//
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// Unit tests for CGFunction
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//
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// Authors:
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// Rolf Bjarne Kvinge <rolf@xamarin.com>
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//
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// Copyright 2015 Xamarin Inc. All rights reserved.
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//
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#if !MONOMAC
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using System;
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using System.Drawing;
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using Foundation;
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using CoreGraphics;
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using UIKit;
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using NUnit.Framework;
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namespace MonoTouchFixtures.CoreGraphics {
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[TestFixture]
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[Preserve (AllMembers = true)]
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public class FunctionTest {
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#if !__WATCHOS__ // FIXME: It doesn't look like this test needs to use UIKit, so it might be possible to rewrite it to run on WatchOS as well.
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[Test]
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public void Test ()
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{
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bool tested = false;
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using (var vc = new UIViewController ()) {
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vc.View = new CustomView ()
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{
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BackgroundColor = UIColor.Green,
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Shaded = () => tested = true,
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};
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MonoTouchFixtures.AppDelegate.PresentModalViewController (vc, 0.1);
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}
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if (!tested)
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Assert.Inconclusive ("The Shading callback wasn't called.");
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}
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class CustomView : UIView {
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public Action Shaded;
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public unsafe override void Draw (CGRect rect)
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{
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var start = new CGPoint (rect.Left, rect.Bottom);
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var end = new CGPoint (rect.Left, rect.Top);
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var domain = new nfloat[] {0f, 1f};
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var range = new nfloat[] {0f, 1f, 0f, 1f};
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using (var context = UIGraphics.GetCurrentContext ())
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using (var rgb = CGColorSpace.CreateDeviceGray())
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using (var shadingFunction = new CGFunction(domain, range, Shading))
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using (var shading = CGShading.CreateAxial (rgb, start, end, shadingFunction, true, false))
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{
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context.DrawShading (shading);
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}
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base.Draw (rect);
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}
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public unsafe void Shading (nfloat* data, nfloat* outData)
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{
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var p = data[0];
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outData[0] = 0.0f;
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outData[1] = (1.0f-Slope(p, 2.0f)) * 0.5f;
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Shaded ();
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}
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public nfloat Slope (nfloat x, nfloat A)
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{
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var p = Math.Pow(x, A);
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return (nfloat)(p/(p + Math.Pow(1.0f-x, A)));
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}
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}
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[Test]
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public void CoreGraphicsStrongDictionary ()
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{
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var rect = new CGRect (10, 10, 100, 100);
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var size = new CGSize (200, 200);
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var point = new CGPoint (10, 20);
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var graphicsDict = new GraphicsDict {
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Rect = rect,
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Size = size,
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Point = point
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};
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var retrievedRect = graphicsDict.Rect;
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Assert.IsTrue (rect == retrievedRect, "CoreGraphicsStrongDictionary CGRect");
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var retrievedSize = graphicsDict.Size;
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Assert.IsTrue (size == retrievedSize, "CoreGraphicsStrongDictionary CGSize");
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var retrievedPoint = graphicsDict.Point;
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Assert.IsTrue (point == retrievedPoint, "CoreGraphicsStrongDictionary CGPoint");
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}
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class GraphicsDict : DictionaryContainer {
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static NSString RectKey = new NSString ("RectKey");
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public CGRect? Rect {
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get { return GetCGRectValue (RectKey); }
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set { SetCGRectValue (RectKey, value); }
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}
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static NSString SizeKey = new NSString ("SizeKey");
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public CGSize? Size {
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get { return GetCGSizeValue (SizeKey); }
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set { SetCGSizeValue (SizeKey, value); }
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}
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static NSString PointKey = new NSString ("PointKey");
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public CGPoint? Point {
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get { return GetCGPointValue (PointKey); }
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set { SetCGPointValue (PointKey, value); }
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}
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}
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#endif // !__WATCHOS__
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}
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}
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#endif |