100 строки
3.4 KiB
C#
100 строки
3.4 KiB
C#
//
|
|
// Unit tests for CGGradient
|
|
//
|
|
// Authors:
|
|
// Sebastien Pouliot <sebastien@xamarin.com>
|
|
//
|
|
// Copyright 2012, 2015 Xamarin Inc. All rights reserved.
|
|
//
|
|
|
|
using System;
|
|
using System.Runtime.InteropServices;
|
|
using Foundation;
|
|
#if MONOMAC
|
|
using AppKit;
|
|
using UIColor = AppKit.NSColor;
|
|
#else
|
|
using UIKit;
|
|
#endif
|
|
using CoreGraphics;
|
|
using ObjCRuntime;
|
|
using NUnit.Framework;
|
|
|
|
namespace MonoTouchFixtures.CoreGraphics {
|
|
|
|
[TestFixture]
|
|
[Preserve (AllMembers = true)]
|
|
public class GradientTest {
|
|
|
|
static CGColor [] array = {
|
|
TestRuntime.GetCGColor (UIColor.Black),
|
|
TestRuntime.GetCGColor (UIColor.Clear),
|
|
TestRuntime.GetCGColor (UIColor.Blue),
|
|
};
|
|
|
|
[Test]
|
|
public void Colorspace_Null ()
|
|
{
|
|
using (var g = new CGGradient (null, array)) {
|
|
Assert.That (g.Handle, Is.Not.EqualTo (IntPtr.Zero), "null,CGColor[]");
|
|
}
|
|
using (var g = new CGGradient (null, array, new nfloat [3] { 0f, 1f, 0.5f })) {
|
|
Assert.That (g.Handle, Is.Not.EqualTo (IntPtr.Zero), "null,CGColor[],float[]");
|
|
}
|
|
|
|
using (var g = new CGGradient (null, array, new nfloat [3] { 0f, 1f, 0.5f })) {
|
|
Assert.That (g.Handle, Is.Not.EqualTo (IntPtr.Zero), "null,CGColor[],float[]");
|
|
}
|
|
}
|
|
|
|
static CGColorSpace [] spaces = {
|
|
CGColorSpace.CreateDeviceGray (),
|
|
CGColorSpace.CreateDeviceRGB (),
|
|
#if !XAMCORE_3_0
|
|
CGColorSpace.Null
|
|
#endif
|
|
};
|
|
|
|
[Test]
|
|
public void Colorspaces ()
|
|
{
|
|
foreach (var cs in spaces) {
|
|
using (var g = new CGGradient (null, array, new nfloat [3] { 0f, 1f, 0.5f })) {
|
|
Assert.That (g.Handle, Is.Not.EqualTo (IntPtr.Zero), cs.ToString ());
|
|
}
|
|
}
|
|
}
|
|
|
|
[DllImport(Constants.CoreGraphicsLibrary)]
|
|
extern static /* CGGradientRef */ IntPtr CGGradientCreateWithColorComponents (/* CGColorSpaceRef */ IntPtr colorspace, /* CGFloat[] */ nfloat [] components, /* CGFloat[] */ nfloat [] locations, /* size_t */ nint count);
|
|
|
|
[DllImport(Constants.CoreGraphicsLibrary)]
|
|
extern static /* CGGradientRef */ IntPtr CGGradientCreateWithColors (/* CGColorSpaceRef */ IntPtr space, /* CFArrayRef */ IntPtr colors, /* CGFloat[] */ nfloat [] locations);
|
|
|
|
[Test]
|
|
public void Nullable ()
|
|
{
|
|
// either a null CGColorSpace or a null CGFloat* array will return nil, i.e. not a valid instance
|
|
using (var cs = CGColorSpace.CreateDeviceGray ())
|
|
Assert.That (CGGradientCreateWithColorComponents (cs.Handle, null, null, 0), Is.EqualTo (IntPtr.Zero), "CGGradientCreateWithColorComponents-1");
|
|
Assert.That (CGGradientCreateWithColorComponents (IntPtr.Zero, new nfloat [3] { 0f, 1f, 0.5f }, null, 0), Is.EqualTo (IntPtr.Zero), "CGGradientCreateWithColorComponents-2");
|
|
|
|
// a null CFArray won't return a valid instance
|
|
using (var cs = CGColorSpace.CreateDeviceGray ())
|
|
Assert.That (CGGradientCreateWithColors (cs.Handle, IntPtr.Zero, null), Is.EqualTo (IntPtr.Zero), "CGGradientCreateWithColors-1");
|
|
|
|
// a null CGColorSpace can return a valid instance
|
|
using (var a = NSArray.FromNSObjects (array))
|
|
Assert.That (CGGradientCreateWithColors (IntPtr.Zero, a.Handle, null), Is.Not.EqualTo (IntPtr.Zero), "CGGradientCreateWithColors-2");
|
|
}
|
|
|
|
[Test]
|
|
public void GradientDrawingOptions ()
|
|
{
|
|
var gdo = CGGradientDrawingOptions.DrawsAfterEndLocation | CGGradientDrawingOptions.DrawsBeforeStartLocation;
|
|
// this would be "3" without a [Flags] attribute
|
|
Assert.That (gdo.ToString (), Is.EqualTo ("DrawsBeforeStartLocation, DrawsAfterEndLocation"), "ToString/Flags");
|
|
}
|
|
}
|
|
}
|