private Image getPlanetSurface()
{
int startx = rand.Next(0, 94544);
int starty = rand.Next(0, 94544);
Color[,] colors = new Color[800, 600];
NoiseMap mapr = Utils.getNoiseMap(startx, starty, 12, 12, 3.1, 0.9);
for (int i = 0; i < 800; i++)
{
for (int j = 0; j < 600; j++)
{
byte r = Utils.NormNoise(mapr.GetValue(i, j));
colors[i, j] = new Color(r, r, r);
}
}
GradientBuilder grad = new GradientBuilder();
Color grey = new Color(150, 150, 150);
grad.AddGradient(new Gradient(0, grey));
grad.AddGradient(new Gradient(255, Color.White));
grad.PrepareGradients();
grad.SourceImage = new Image(colors);
return(grad.Render());
}
public static IGradientSource ToSource(this GradientBuilder builder)
{
return(new GradientCollection
{
Gradients = new GradientElements <Gradient>(builder.Build())
});
}
public override void AddGradient(GradientBuilder builder)
{
builder.AddRadialGradient(
new Point(0.5, 0.5),
RadialGradientShape.Circle,
RadialGradientSize.ClosestSide);
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var isRepeating = reader.Read().Trim() == CssToken.RepeatingRadialGradient;
var token = reader.ReadNext().Trim();
var internalReader = new CssReader(token, ' ');
var(hasShape, shape) = GetShape(internalReader);
var(hasStretch, stretch) = GetStretch(internalReader);
var(hasRadius, radius) = GeRadius(internalReader, shape);
var(hasPos, position) = GetPosition(internalReader);
builder.UseBuilder(new RadialGradientBuilder
{
Center = position,
Shape = shape,
Stretch = stretch,
Radius = radius,
IsRepeating = isRepeating
});
if (!hasShape && !hasStretch && !hasRadius && !hasPos)
{
reader.Rollback();
}
}
private Image getPlanetSurface()
{
int startx = rand.Next(0, 94544);
int starty = rand.Next(0, 94544);
Color[,] colors = new Color[800, 600];
NoiseMap mapr = Utils.getNoiseMap(startx, starty, 6, 6, 2.7, 0.8);
for (int i = 0; i < 800; i++)
{
for (int j = 0; j < 600; j++)
{
byte r = Utils.NormNoise(mapr.GetValue(i, j));
colors[i, j] = new Color(r, r, r);
}
}
GradientBuilder grad = new GradientBuilder();
grad.AddGradient(new Gradient(0, Color.Gray));
grad.AddGradient(new Gradient(20, Color.OrangeRed));
grad.AddGradient(new Gradient(225, Color.Orange));
grad.AddGradient(new Gradient(255, Color.LightGray));
grad.PrepareGradients();
grad.SourceImage = new Image(colors);
return(grad.Render());
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var isRepeating = reader.Read().Trim() == CssToken.RepeatingRadialGradient;
var token = reader.ReadNext().Trim();
var internalReader = new CssReader(token, ' ');
var flags = None;
var(hasShape, shape) = GetShape(internalReader);
var(hasSize, size) = GetSize(internalReader);
var(hasRadius, radius) = GeRadius(internalReader, shape, ref flags);
var(hasPos, position) = GetPosition(internalReader, ref flags);
builder.UseBuilder(new RadialGradientBuilder
{
Center = position,
Shape = shape,
Size = size,
RadiusX = radius.Width,
RadiusY = radius.Height,
Flags = flags,
IsRepeating = isRepeating
});
if (!hasShape && !hasSize && !hasRadius && !hasPos)
{
reader.Rollback();
}
}
public static T Source <T>(this T control, Action <GradientBuilder> build) where T : IGradientControl
{
var builder = new GradientBuilder();
build.Invoke(builder);
control.GradientSource = builder.BuildSource();
return(control);
}
public void AddCssGradient_EmptyCss_NothingBuilt(string css)
{
// Arrange & Act
var gradients = new GradientBuilder()
.AddCssGradient(css)
.Build();
// Assert
gradients.Should().BeEmpty();
}
public void AddCssGradient_InvalidCss_InvalidOperationException(string css)
{
// Arrange
var builder = new GradientBuilder().AddCssGradient(css);
// Act
Action action = () => builder.Build();
// Assert
action.Should().Throw <InvalidOperationException>();
}
public void Parse_HslAndHsla_WithDoubleValues_NoExceptionsThrown(string color)
{
// Arrange
var reader = new CssReader(color);
var builder = new GradientBuilder();
var definition = new ColorChannelDefinition();
// Act
Action action = () => definition.Parse(reader, builder);
// Assert
action.Should().NotThrow <Exception>();
}
public void UseStaticParseMethod_CssParsedAsGradients()
{
// Arrange
var css = "radial-gradient(blue, yellow)";
var expected = new GradientBuilder()
.AddRadialGradient(g => g.AddStops(Color.Blue, Color.Yellow))
.Build().First();
// Act
var source = CssGradientSource.Parse(css);
// Assert
AssertSourceHasExpected(source, expected);
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var color = (Color)ColorConverter.ConvertFromInvariantString(GetColorString(reader));
if (TryConvertPercentToOffset(reader.ReadNext(), out var offset))
{
builder.AddStop(color, offset);
}
else
{
builder.AddStop(color);
reader.Rollback();
}
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var isRepeating = reader.Read().Trim() == CssToken.RepeatingRadialGradient;
var token = reader.ReadNext().Trim();
var internalReader = new CssReader(token, ' ');
var shape = GetShape(internalReader);
var shapeSize = GetShapeSize(internalReader);
var(position, flags) = GetPositionWithFlags(internalReader);
builder.AddRadialGradient(position, shape, shapeSize, flags, isRepeating);
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var parts = reader.Read().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var color = (Color)ColorConverter.ConvertFromInvariantString(parts[0]);
if (parts.TryConvertOffsets(out var offsets))
{
builder.AddStops(color, offsets);
}
else
{
builder.AddStop(color);
}
}
public void AddCssGradient_MultipleCssGradients_MultipleGradientsBuilt()
{
// Arrange & Act
var gradients = new GradientBuilder()
.AddCssGradient("linear-gradient(black,white), radial-gradient(pink,brown)")
.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(2);
gradients[0].Should().BeOfType <RadialGradient>();
gradients[1].Should().BeOfType <LinearGradient>();
}
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var parts = reader.Read().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var color = GetNamedColor(parts[0]);
var offsets = GetOffsets(parts);
if (offsets.Any())
{
builder.AddStops(color, offsets);
}
else
{
builder.AddStop(color);
}
}
public void FluentApi_BuildSource_GenericGradientWithGradients()
{
// Act
var source = new GradientBuilder()
.AddLinearGradient(g => g
.Rotate(20)
.AddStops(Colors.Red, Colors.Green, Colors.Blue))
.BuildSource();
// Assert
using (new AssertionScope())
{
source.Should().BeOfType <GenericGradientSource>();
source.GetGradients().Should().HaveCount(1);
}
}
public void SetStylesheetProperty_CssParsedAsGradients()
{
// Arrange
var css = "linear-gradient(red, green)";
var expected = new GradientBuilder()
.AddLinearGradient(g => g.AddStops(Color.Red, Color.Green))
.Build().First();
// Act
var source = new CssGradientSource();
source.Stylesheet = css;
// Assert
AssertSourceHasExpected(source, expected);
}
private void DrawBorder(RenderContext context)
{
var gradient = new GradientBuilder().AddCssGradient("linear-gradient(43deg, #4158D0 0%, #C850C0 46%, #FFCC70 100%)").Build().First();
gradient.InstantiateShader(_control);
gradient.Measure(context.RenderRect.Width, context.RenderRect.Height);
using var paint = new SKPaint
{
StrokeWidth = 10,
Style = SKPaintStyle.Stroke,
Color = SKColors.Yellow,
Shader = gradient.Shader.Create(context)
};
context.Canvas.DrawRect(context.RenderRect, paint);
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var parts = reader.Read().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var color = parts.Length > 0
? (Color)ColorConverter.ConvertFromInvariantString(parts[0])
: Color.Black;
if (parts.Length > 1 && TryConvertPercentToOffset(parts[1], out var offset))
{
builder.AddStop(color, offset);
}
else
{
builder.AddStop(color);
}
}
public void AddCssGradient_ValidCss_GradientParsed()
{
// Arrange & Act
var gradients = new GradientBuilder()
.AddCssGradient("linear-gradient(red, orange)")
.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].Should().BeOfType <LinearGradient>();
gradients[0].GetStops().Should().HaveCount(2);
gradients[0].GetStops()[0].Color.Should().Be(Colors.Red);
gradients[0].GetStops()[1].Color.Should().Be(Colors.Orange);
}
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var colorString = GetColorString(reader);
var color = (Color)ColorConverter.ConvertFromInvariantString(colorString);
var parts = reader.ReadNext().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var offsets = GetOffsets(parts);
if (offsets.Any())
{
builder.AddStops(color, offsets);
}
else
{
builder.AddStop(color);
reader.Rollback();
}
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var direction = reader.ReadNext().Trim();
if (TryConvertDegreeToAngle(direction, out var degreeToAngle))
{
builder.AddLinearGradient(degreeToAngle);
}
else if (TryConvertNamedDirectionToAngle(direction, out var directionToAngle))
{
builder.AddLinearGradient(directionToAngle);
}
else
{
builder.AddLinearGradient(0);
reader.Rollback();
}
}
public void FluentApi_BuildLinearNoOptions_ProperDefaultValues()
{
// Act
var gradients = new GradientBuilder()
.AddLinearGradient()
.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].Should().BeAssignableTo <LinearGradient>();
var linear = (LinearGradient)gradients[0];
linear.Angle.Should().Be(0);
linear.IsRepeating.Should().BeFalse();
}
}
public void AddGradient_AndStops_SingleGradientWithStops(GradientBuilderTestCase testCase)
{
// Arrange
var builder = new GradientBuilder();
// Act
testCase.AddGradientTo(builder);
builder.AddStop(Colors.White);
builder.AddStop(Colors.Black);
var gradients = builder.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].GetStops().Should().HaveCount(2);
}
}
public void AddOnlyStops_DefaultGradientWithStops()
{
// Arrange
var builder = new GradientBuilder();
// Act
builder.AddStop(Colors.White);
builder.AddStop(Colors.Black);
var gradients = builder.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].Should().BeOfType <LinearGradient>();
gradients[0].GetStops().Should().HaveCount(2);
}
}
public LinearViewModel()
{
LinearGradient = new GradientBuilder()
.AddLinearGradient(g => g
.Rotate(45)
.AddStops(Colors.Red, Colors.Orange, Colors.Yellow))
.BuildSource();
Rainbow = new CssGradientSource("linear-gradient(43deg, #4158D0 0%, #C850C0 46%, #FFCC70 100%)");
Burst = new CssGradientSource("linear-gradient(201deg, rgba(148, 148, 148, 0.07) 0%, rgba(148, 148, 148, 0.07) 50%,rgba(83, 83, 83, 0.07) 50%, rgba(83, 83, 83, 0.07) 100%),linear-gradient(192deg, rgba(176, 176, 176, 0.08) 0%, rgba(176, 176, 176, 0.08) 50%,rgba(180, 180, 180, 0.08) 50%, rgba(180, 180, 180, 0.08) 100%),linear-gradient(48deg, rgba(185, 185, 185, 0.1) 0%, rgba(185, 185, 185, 0.1) 50%,rgba(243, 243, 243, 0.1) 50%, rgba(243, 243, 243, 0.1) 100%),linear-gradient(65deg, rgba(172, 172, 172, 0.09) 0%, rgba(172, 172, 172, 0.09) 50%,rgba(209, 209, 209, 0.09) 50%, rgba(209, 209, 209, 0.09) 100%),linear-gradient(4deg, rgba(224, 224, 224, 0.03) 0%, rgba(224, 224, 224, 0.03) 50%,rgba(49, 49, 49, 0.03) 50%, rgba(49, 49, 49, 0.03) 100%),linear-gradient(228deg, rgba(152, 152, 152, 0.03) 0%, rgba(152, 152, 152, 0.03) 50%,rgba(130, 130, 130, 0.03) 50%, rgba(130, 130, 130, 0.03) 100%),linear-gradient(163deg, rgba(170, 170, 170, 0.08) 0%, rgba(170, 170, 170, 0.08) 50%,rgba(232, 232, 232, 0.08) 50%, rgba(232, 232, 232, 0.08) 100%),linear-gradient(152deg, rgba(12, 12, 12, 0.05) 0%, rgba(12, 12, 12, 0.05) 50%,rgba(161, 161, 161, 0.05) 50%, rgba(161, 161, 161, 0.05) 100%),linear-gradient(302deg, rgba(48, 48, 48, 0.1) 0%, rgba(48, 48, 48, 0.1) 50%,rgba(195, 195, 195, 0.1) 50%, rgba(195, 195, 195, 0.1) 100%),linear-gradient(90deg, rgb(144, 14, 253),rgb(74, 115, 255))");
Angular = new GradientBuilder()
.AddCssGradient("linear-gradient(142deg, rgba(250, 250, 250, 0.05) 0%, rgba(250, 250, 250, 0.05) 53%,rgba(64, 64, 64, 0.05) 53%, rgba(64, 64, 64, 0.05) 100%),linear-gradient(29deg, rgba(10, 10, 10, 0.05) 0%, rgba(10, 10, 10, 0.05) 27%,rgba(94, 94, 94, 0.05) 27%, rgba(94, 94, 94, 0.05) 100%),linear-gradient(118deg, rgba(4, 4, 4, 0.05) 0%, rgba(4, 4, 4, 0.05) 18%,rgba(188, 188, 188, 0.05) 18%, rgba(188, 188, 188, 0.05) 100%),linear-gradient(90deg, rgb(10, 143, 251),rgb(35, 61, 210))")
.BuildSource();
Diamonds = new GradientBuilder()
.AddCssGradient("linear-gradient(45deg, rgba(22, 31, 43, 0.5) 0%, rgba(22, 31, 43, 0.5) 12.5%,rgba(53, 28, 54, 0.5) 12.5%, rgba(53, 28, 54, 0.5) 25%,rgba(83, 25, 65, 0.5) 25%, rgba(83, 25, 65, 0.5) 37.5%,rgba(114, 22, 76, 0.5) 37.5%, rgba(114, 22, 76, 0.5) 50%,rgba(144, 20, 86, 0.5) 50%, rgba(144, 20, 86, 0.5) 62.5%,rgba(175, 17, 97, 0.5) 62.5%, rgba(175, 17, 97, 0.5) 75%,rgba(205, 14, 108, 0.5) 75%, rgba(205, 14, 108, 0.5) 87.5%,rgba(236, 11, 119, 0.5) 87.5%, rgba(236, 11, 119, 0.5) 100%),linear-gradient(135deg, rgb(188, 0, 159) 0%, rgb(188, 0, 159) 12.5%,rgb(173, 4, 150) 12.5%, rgb(173, 4, 150) 25%,rgb(158, 7, 141) 25%, rgb(158, 7, 141) 37.5%,rgb(143, 11, 132) 37.5%, rgb(143, 11, 132) 50%,rgb(129, 15, 124) 50%, rgb(129, 15, 124) 62.5%,rgb(114, 19, 115) 62.5%, rgb(114, 19, 115) 75%,rgb(99, 22, 106) 75%, rgb(99, 22, 106) 87.5%,rgb(84, 26, 97) 87.5%, rgb(84, 26, 97) 100%)")
.BuildSource();
}
public void Parse(CssReader reader, GradientBuilder builder)
{
var repeating = reader.Read().Trim() == CssToken.RepeatingLinearGradient;
var direction = reader.ReadNext().Trim();
var angle = 0d;
var hasAngle = TryConvertDegreeToAngle(direction, out angle) ||
TryConvertTurnToAngle(direction, out angle) ||
TryConvertNamedDirectionToAngle(direction, out angle);
if (hasAngle)
{
builder.AddLinearGradient(angle, repeating);
}
else
{
builder.AddLinearGradient(0, repeating);
reader.Rollback();
}
}
public void Parse_ValidGradientCss_ExpectedGradientReturned(string css, LinearGradient expectedGradient)
{
// Arrange
var reader = new CssReader(css);
var builder = new GradientBuilder();
var definition = new LinearGradientDefinition();
// Act
definition.Parse(reader, builder);
// Assert
var result = builder.Build();
using (new AssertionScope())
{
result.Should().HaveCount(1);
var linearGradient = result[0] as LinearGradient;
linearGradient.Should().NotBeNull();
linearGradient.Should().BeEquivalentTo(expectedGradient);
}
}
public void FluentApi_BuildRadialNoOptions_ProperDefaultValues()
{
// Act
var gradients = new GradientBuilder()
.AddRadialGradient()
.Build();
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].Should().BeAssignableTo <RadialGradient>();
var radial = (RadialGradient)gradients[0];
radial.Center.Should().BeEquivalentTo(Position.Prop(0.5, 0.5));
radial.Radius.Should().BeEquivalentTo(Dimensions.Zero);
radial.Shape.Should().Be(RadialGradientShape.Ellipse);
radial.Stretch.Should().Be(RadialGradientStretch.FarthestCorner);
radial.IsRepeating.Should().BeFalse();
}
}