Class StrokeEffect

StrokeEffect class

PSD 图层的 Adobe® Photoshop® 描边效果。

public class StrokeEffect : ILayerEffect

特性

姓名	描述
BlendMode { get; set; }	获取或设置混合模式。
EffectType { get; }	获取一种效果
FillSettings { get; set; }	获取或设置填充设置。
IsVisible { get; set; }	获取或设置一个值，指示此实例是否可见。
Opacity { get; set; }	获取或设置不透明度。
Overprint { get; set; }	获取或设置一个值，指示是否这`StrokeEffect`将根据当前图层内容混合描边。
Position { get; set; }	获取或设置描边效果的位置，以控制你的描边与 PSD 图层内容的对齐方式。的值可以是Inside在 PSD 图层内容内绘制笔划，或Outside在 PSD 层内容周围绘制描边，和Center在内部和外部绘制笔划.
Size { get; set; }	获取或设置描边效果的宽度。

例子

以下代码示例显示了使用颜色填充渲染笔触效果。

[C#]

// 实现Stroke效果渲染，Color Fill导出
string sourceFileName = "StrokeComplex.psd";
string exportPath = "StrokeComplexRendering.psd";
string exportPathPng = "StrokeComplexRendering.png";
var loadOptions = new PsdLoadOptions()
{
    LoadEffectsResource = true
};
using (var im = (PsdImage)Image.Load(sourceFileName, loadOptions))
{
    for (int i = 0; i < im.Layers.Length; i++)
    {
        var effect = (StrokeEffect)im.Layers[i].BlendingOptions.Effects[0];
        var settings = (ColorFillSettings)effect.FillSettings;
        settings.Color = Color.DeepPink;
    }

    // 保存psd
    im.Save(exportPath, new PsdOptions());
    // 保存png
    im.Save(exportPathPng, new PngOptions()
    {
        ColorType = PngColorType.TruecolorWithAlpha
    });
}

以下代码演示了对填充类型为 Color 的笔触效果图层的支持。

[C#]

void AssertAreEqual(object expected, object actual, string message = null)
{
    if (!object.Equals(expected, actual))
    {
        throw new FormatException(message ?? "Objects are not equal.");
    }
}

var sourceFileName = "Stroke.psd";
var exportPath = "StrokeColorChanged.psd";

var loadOptions = new PsdLoadOptions()
{
    LoadEffectsResource = true
};

using (var im = (PsdImage)Image.Load(sourceFileName, loadOptions))
{
    var colorStroke = (StrokeEffect)im.Layers[1].BlendingOptions.Effects[0];

    AssertAreEqual(BlendMode.Normal, colorStroke.BlendMode);
    AssertAreEqual((byte)255, colorStroke.Opacity);
    AssertAreEqual(true, colorStroke.IsVisible);

    var fillSettings = (ColorFillSettings)colorStroke.FillSettings;
    AssertAreEqual(Color.Black, fillSettings.Color);
    AssertAreEqual(FillType.Color, fillSettings.FillType);

    fillSettings.Color = Color.Yellow;

    colorStroke.Opacity = 127;
    colorStroke.BlendMode = BlendMode.Color;
    im.Save(exportPath);
}

// 编辑后的测试文件
using (var im = (PsdImage)Image.Load(exportPath, loadOptions))
{
    var colorStroke = (StrokeEffect)im.Layers[1].BlendingOptions.Effects[0];

    AssertAreEqual(BlendMode.Color, colorStroke.BlendMode);
    AssertAreEqual((byte)127, colorStroke.Opacity);
    AssertAreEqual(true, colorStroke.IsVisible);

    var fillSettings = (ColorFillSettings)colorStroke.FillSettings;
    AssertAreEqual(Color.Yellow, fillSettings.Color);
    AssertAreEqual(FillType.Color, fillSettings.FillType);
}

以下代码演示了对填充类型为 Pattern 的笔触效果图层的支持。

[C#]

void AssertAreEqual(object expected, object actual, string message = null)
{
    if (expected is Array && actual is Array)
    {
        Array array1 = (Array)expected;
        Array array2 = (Array)actual;
        AssertAreEqual(array1.Length, array2.Length);

        for (int i = 0; i < array1.Length; i++)
        {
            AssertAreEqual(array1.GetValue(i), array2.GetValue(i));
        }
        return;
    }

    if (!object.Equals(expected, actual))
    {
        throw new FormatException(message ?? "Objects are not equal.");
    }
}

string sourceFileName = "Stroke.psd";
string exportPath = "StrokePatternChanged.psd";

var loadOptions = new PsdLoadOptions()
{
    LoadEffectsResource = true
};

// 准备新数据
var newPattern = new int[]
{
    Color.Aqua.ToArgb(), Color.Red.ToArgb(), Color.Red.ToArgb(), Color.Aqua.ToArgb(),
    Color.Aqua.ToArgb(), Color.White.ToArgb(), Color.White.ToArgb(), Color.Aqua.ToArgb(),
    Color.Aqua.ToArgb(), Color.White.ToArgb(), Color.White.ToArgb(), Color.Aqua.ToArgb(),
    Color.Aqua.ToArgb(), Color.Red.ToArgb(), Color.Red.ToArgb(), Color.Aqua.ToArgb(),
};

var newPatternBounds = new Rectangle(0, 0, 4, 4);
var guid = Guid.NewGuid();

using (var im = (PsdImage)Image.Load(sourceFileName, loadOptions))
{
    var patternStroke = (StrokeEffect)im.Layers[3].BlendingOptions.Effects[0];

    AssertAreEqual(BlendMode.Normal, patternStroke.BlendMode);
    AssertAreEqual((byte)255, patternStroke.Opacity);
    AssertAreEqual(true, patternStroke.IsVisible);

    var fillSettings = (PatternFillSettings)patternStroke.FillSettings;
    AssertAreEqual(FillType.Pattern, fillSettings.FillType);

    patternStroke.Opacity = 127;
    patternStroke.BlendMode = BlendMode.Color;

    PattResource resource;
    foreach (var globalLayerResource in im.GlobalLayerResources)
    {
        if (globalLayerResource is PattResource)
        {
            resource = (PattResource)globalLayerResource;
            resource.Patterns[0].PatternId = guid.ToString();
            resource.Patterns[0].Name = "$$$/Presets/Patterns/HorizontalLine1=Horizontal Line 9\0";

            resource.Patterns[0].SetPattern(newPattern, newPatternBounds);
        }
    }

    ((PatternFillSettings)patternStroke.FillSettings).PatternName = "$$$/Presets/Patterns/HorizontalLine1=Horizontal Line 9\0";

    ((PatternFillSettings)patternStroke.FillSettings).PatternId = guid.ToString() + "\0";
    im.Save(exportPath);
}

// 编辑后的测试文件
using (var im = (PsdImage)Image.Load(exportPath, loadOptions))
{
    var patternStroke = (StrokeEffect)im.Layers[3].BlendingOptions.Effects[0];

    PattResource resource = null;
    foreach (var globalLayerResource in im.GlobalLayerResources)
    {
        if (globalLayerResource is PattResource)
        {
            resource = (PattResource)globalLayerResource;
        }
    }

    if (resource == null)
    {
        throw new Exception("PattResource not found");
    }

    // 检查模式数据
    AssertAreEqual(newPattern, resource.Patterns[0].PatternData);
    AssertAreEqual(newPatternBounds, new Rectangle(0, 0, resource.Patterns[0].Width, resource.Patterns[0].Height));
    AssertAreEqual(guid.ToString().ToUpperInvariant(), resource.Patterns[0].PatternId);

    AssertAreEqual(BlendMode.Color, patternStroke.BlendMode);
    AssertAreEqual((byte)127, patternStroke.Opacity);
    AssertAreEqual(true, patternStroke.IsVisible);

    var fillSettings = (PatternFillSettings)patternStroke.FillSettings;

    AssertAreEqual(FillType.Pattern, fillSettings.FillType);
}

以下代码演示了对填充类型为渐变的笔触效果层的支持。

[C#]

void AssertIsTrue(bool condition, string message)
{
    if (!condition)
    {
        throw new FormatException(message);
    }
}
void AssertAreEqual(object expected, object actual, string message = null)
{
    if (!object.Equals(expected, actual))
    {
        throw new FormatException(message ?? "Objects are not equal.");
    }
}

string sourceFileName = "Stroke.psd";
string exportPath = "StrokeGradientChanged.psd";

var loadOptions = new PsdLoadOptions()
{
    LoadEffectsResource = true
};

using (var im = (PsdImage)Image.Load(sourceFileName, loadOptions))
{
    var gradientStroke = (StrokeEffect)im.Layers[2].BlendingOptions.Effects[0];

    AssertAreEqual(BlendMode.Normal, gradientStroke.BlendMode);
    AssertAreEqual((byte)255, gradientStroke.Opacity);
    AssertAreEqual(true, gradientStroke.IsVisible);

    var fillSettings = (GradientFillSettings)gradientStroke.FillSettings;
    AssertAreEqual(Color.Black, fillSettings.Color);
    AssertAreEqual(FillType.Gradient, fillSettings.FillType);
    AssertAreEqual(true, fillSettings.AlignWithLayer);
    AssertAreEqual(GradientType.Linear, fillSettings.GradientType);
    AssertIsTrue(Math.Abs(90 - fillSettings.Angle) < 0.001, "Angle is incorrect");
    AssertAreEqual(false, fillSettings.Dither);
    AssertIsTrue(Math.Abs(0 - fillSettings.HorizontalOffset) < 0.001, "Horizontal offset is incorrect");
    AssertIsTrue(Math.Abs(0 - fillSettings.VerticalOffset) < 0.001, "Vertical offset is incorrect");
    AssertAreEqual(false, fillSettings.Reverse);

    // 色点
    var colorPoints = fillSettings.ColorPoints;
    AssertAreEqual(2, colorPoints.Length);

    AssertAreEqual(Color.Black, colorPoints[0].Color);
    AssertAreEqual(0, colorPoints[0].Location);
    AssertAreEqual(50, colorPoints[0].MedianPointLocation);

    AssertAreEqual(Color.White, colorPoints[1].Color);
    AssertAreEqual(4096, colorPoints[1].Location);
    AssertAreEqual(50, colorPoints[1].MedianPointLocation);

    // 透明点
    var transparencyPoints = fillSettings.TransparencyPoints;
    AssertAreEqual(2, transparencyPoints.Length);

    AssertAreEqual(0, transparencyPoints[0].Location);
    AssertAreEqual(50, transparencyPoints[0].MedianPointLocation);
    AssertAreEqual(100.00, transparencyPoints[0].Opacity);

    AssertAreEqual(4096, transparencyPoints[1].Location);
    AssertAreEqual(50, transparencyPoints[1].MedianPointLocation);
    AssertAreEqual(100.00, transparencyPoints[1].Opacity);

    // 测试编辑
    fillSettings.Color = Color.Green;

    gradientStroke.Opacity = 127;
    gradientStroke.BlendMode = BlendMode.Color;

    fillSettings.AlignWithLayer = false;
    fillSettings.GradientType = GradientType.Radial;
    fillSettings.Angle = 45;
    fillSettings.Dither = true;
    fillSettings.HorizontalOffset = 15;
    fillSettings.VerticalOffset = 11;
    fillSettings.Reverse = true;

    // 添加新的颜色点
    var colorPoint = fillSettings.AddColorPoint();
    colorPoint.Color = Color.Green;
    colorPoint.Location = 4096;
    colorPoint.MedianPointLocation = 75;

    // 改变上一个点的位置
    fillSettings.ColorPoints[1].Location = 1899;

    // 添加新的透明点
    var transparencyPoint = fillSettings.AddTransparencyPoint();
    transparencyPoint.Opacity = 25;
    transparencyPoint.MedianPointLocation = 25;
    transparencyPoint.Location = 4096;

    // 改变前一个透明点的位置
    fillSettings.TransparencyPoints[1].Location = 2411;

    im.Save(exportPath);
}

// 编辑后的测试文件
using (var im = (PsdImage)Image.Load(exportPath, loadOptions))
{
    var gradientStroke = (StrokeEffect)im.Layers[2].BlendingOptions.Effects[0];

    AssertAreEqual(BlendMode.Color, gradientStroke.BlendMode);
    AssertAreEqual((byte)127, gradientStroke.Opacity);
    AssertAreEqual(true, gradientStroke.IsVisible);

    var fillSettings = (GradientFillSettings)gradientStroke.FillSettings;
    AssertAreEqual(Color.Green, fillSettings.Color);
    AssertAreEqual(FillType.Gradient, fillSettings.FillType);

    // 检查颜色点
    AssertAreEqual(3, fillSettings.ColorPoints.Length);

    var point = fillSettings.ColorPoints[0];
    AssertAreEqual(50, point.MedianPointLocation);
    AssertAreEqual(Color.Black, point.Color);
    AssertAreEqual(0, point.Location);

    point = fillSettings.ColorPoints[1];
    AssertAreEqual(50, point.MedianPointLocation);
    AssertAreEqual(Color.White, point.Color);
    AssertAreEqual(1899, point.Location);

    point = fillSettings.ColorPoints[2];
    AssertAreEqual(75, point.MedianPointLocation);
    AssertAreEqual(Color.Green, point.Color);
    AssertAreEqual(4096, point.Location);

    // 检查透明点
    AssertAreEqual(3, fillSettings.TransparencyPoints.Length);

    var transparencyPoint = fillSettings.TransparencyPoints[0];
    AssertAreEqual(50, transparencyPoint.MedianPointLocation);
    AssertAreEqual(100.00, transparencyPoint.Opacity);
    AssertAreEqual(0, transparencyPoint.Location);

    transparencyPoint = fillSettings.TransparencyPoints[1];
    AssertAreEqual(50, transparencyPoint.MedianPointLocation);
    AssertAreEqual(100.00, transparencyPoint.Opacity);
    AssertAreEqual(2411, transparencyPoint.Location);

    transparencyPoint = fillSettings.TransparencyPoints[2];
    AssertAreEqual(25, transparencyPoint.MedianPointLocation);
    AssertAreEqual(25.00, transparencyPoint.Opacity);
    AssertAreEqual(4096, transparencyPoint.Location);
}

也可以看看

interface ILayerEffect
命名空间 Aspose.PSD.FileFormats.Psd.Layers.LayerEffects
部件 Aspose.PSD

Class PatternOverlayEffect Enum StrokePosition