ReplaceContents

ReplaceContents(Image)

替换智能对象层中嵌入的智能对象内容。

public void ReplaceContents(Image image)
范围 类型 描述
image Image 图片。

例子

以下代码演示了对嵌入式智能对象的支持。

[C#]

void AssertAreEqual(object actual, object expected)
{
    if (!object.Equals(actual, expected))
    {
        throw new FormatException(string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
    }
}

// 此示例演示如何更改 PSD 文件中的智能对象图层并导出/更新智能对象原始嵌入内容。
const int left = 0;
const int top = 0;
const int right = 0xb;
const int bottom = 0x10;
FileFormat[] formats = new[]
{
    FileFormat.Png, FileFormat.Psd, FileFormat.Bmp, FileFormat.Jpeg, FileFormat.Gif, FileFormat.Tiff, FileFormat.Jpeg2000
};
foreach (FileFormat format in formats)
{
    string formatString = format.ToString().ToLowerInvariant();
    string formatExt = format == FileFormat.Jpeg2000 ? "jpf" : formatString;
    string fileName = "r-embedded-" + formatString;
    string sourceFilePath = fileName + ".psd";
    string pngOutputPath = fileName + "_output.png";
    string psdOutputPath = fileName + "_output.psd";
    string png2OutputPath = fileName + "_updated.png";
    string psd2OutputPath = fileName + "_updated.psd";
    string exportPath = fileName + "_export." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(sourceFilePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];

        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);

        // 让我们从 PSD 智能对象层导出嵌入的智能对象图像
        smartObjectLayer.ExportContents(exportPath);

        // 让我们检查原始图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(null))
        {
            AssertAreEqual(format, innerImage.FileFormat);

            // 让我们反转原始智能对象图像
            var pixels = innerImage.LoadArgb32Pixels(innerImage.Bounds);
            for (int i = 0; i < pixels.Length; i++)
            {
                var pixel = pixels[i];
                var alpha = (int)(pixel & 0xff000000);
                pixels[i] = (~(pixel & 0x00ffffff)) | alpha;
            }

            innerImage.SaveArgb32Pixels(innerImage.Bounds, pixels);

            // 让我们替换 PSD 层中嵌入的智能对象图像
            smartObjectLayer.ReplaceContents(innerImage);
        }

        // 让我们检查更新的图像是否正确保存
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

也可以看看


ReplaceContents(Image, ResolutionSetting)

替换智能对象层中嵌入的智能对象内容。

public void ReplaceContents(Image image, ResolutionSetting resolution)
范围 类型 描述
image Image 图片。
resolution ResolutionSetting 分辨率设置。如果为 null,则将使用图像分辨率。

例外

例外 (健康)状况
PsdImageException 只能替换嵌入式智能对象。

例子

此示例演示 ReplaceContents 方法在新内容文件具有不同分辨率时正常工作。

[C#]

// 这个例子演示了当新的内容文件有不同的分辨率时,ReplaceContents 方法可以正常工作。
string fileName = "CommonPsb.psd";
string filePath = baseFolder + fileName; //原始PSD图像
string newContentPath = baseFolder + "image.jpg"; // 智能对象的新内容文件
string outputFilePath = outputFolder + "ChangedPsd";
string pngOutputPath = outputFilePath + ".png"; //输出PNG文件
string psdOutputPath = outputFilePath + ".psd"; //输出PSD文件
using (PsdImage psd = (PsdImage)Image.Load(filePath))
{
    for (int i = 0; i < psd.Layers.Length; i++)
    {
        var layer = psd.Layers[i];
        SmartObjectLayer smartObjectLayer = layer as SmartObjectLayer;
        if (smartObjectLayer != null)
        {
            smartObjectLayer.ReplaceContents(newContentPath);

            psd.Save(psdOutputPath);
            psd.Save(pngOutputPath, new PngOptions() { ColorType = Aspose.PSD.FileFormats.Png.PngColorType.TruecolorWithAlpha });
        }
    }
}

也可以看看


ReplaceContents(string, ResolutionSetting)

将内容替换为文件。 之后无需调用UpdateModifiedContent 方法。

public void ReplaceContents(string linkedPath, ResolutionSetting resolution)
范围 类型 描述
linkedPath String 链接的路径。
resolution ResolutionSetting 分辨率设置。如果为 null,则将使用图像分辨率。

例子

此示例演示 ReplaceContents 方法在新内容文件具有不同分辨率时正常工作。

[C#]

// 这个例子演示了当新的内容文件有不同的分辨率时,ReplaceContents 方法可以正常工作。
string fileName = "CommonPsb.psd";
string filePath = baseFolder + fileName; //原始PSD图像
string newContentPath = baseFolder + "image.jpg"; // 智能对象的新内容文件
string outputFilePath = outputFolder + "ChangedPsd";
string pngOutputPath = outputFilePath + ".png"; //输出PNG文件
string psdOutputPath = outputFilePath + ".psd"; //输出PSD文件
using (PsdImage psd = (PsdImage)Image.Load(filePath))
{
    for (int i = 0; i < psd.Layers.Length; i++)
    {
        var layer = psd.Layers[i];
        SmartObjectLayer smartObjectLayer = layer as SmartObjectLayer;
        if (smartObjectLayer != null)
        {
            smartObjectLayer.ReplaceContents(newContentPath);

            psd.Save(psdOutputPath);
            psd.Save(pngOutputPath, new PngOptions() { ColorType = Aspose.PSD.FileFormats.Png.PngColorType.TruecolorWithAlpha });
        }
    }
}

也可以看看


ReplaceContents(string)

将内容替换为文件。 之后无需调用UpdateModifiedContent 方法。

public void ReplaceContents(string linkedPath)
范围 类型 描述
linkedPath String 链接的路径。

例子

以下代码演示了对更新链接智能对象的支持。

[C#]

void AssertAreEqual(object actual, object expected)
{
    var areEqual = object.Equals(actual, expected);
    if (!areEqual && actual is Array && expected is Array)
    {
        var actualArray = (Array)actual;
        var expectedArray = (Array)actual;
        if (actualArray.Length == expectedArray.Length)
        {
            for (int i = 0; i < actualArray.Length; i++)
            {
                if (!object.Equals(actualArray.GetValue(i), expectedArray.GetValue(i)))
                {
                    break;
                }
            }

            areEqual = true;
        }
    }

    if (!areEqual)
    {
        throw new FormatException(
            string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
    }
}

// 此示例演示如何使用这些方法更新外部或嵌入式智能对象层:
// RelinkToFile、UpdateModifiedContent、ExportContents
ExampleOfUpdatingSmartObjectLayer("rgb8_2x2_linked2.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfUpdatingSmartObjectLayer("r-embedded-png.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);

void ExampleOfUpdatingSmartObjectLayer(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    // 此示例演示如何更改 PSD 文件中的智能对象图层并导出/更新其内容。
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "updating_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_modified.png";
    string png2OutputPath = dataDir + fileName + "_updated_modified.png";
    string psd2OutputPath = dataDir + fileName + "_updated_modified.psd";
    string exportPath = dataDir + fileName + "_exported." + GetFormatExt(format);
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        var contentType = smartObjectLayer.ContentType;
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);

        if (contentType == SmartObjectType.AvailableLinked)
        {
            Directory.CreateDirectory(Path.GetDirectoryName(exportPath));
            // 让我们将外部智能对象图像从 PSD 智能对象层导出到新位置
            // 因为我们要修改它。
            smartObjectLayer.ExportContents(exportPath);
            smartObjectLayer.RelinkToFile(exportPath);
        }

        // 让我们反转智能对象的内容:内部(未缓存)图像
        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(new LoadOptions()))
        {
            InvertImage(innerImage);
            using (var stream = new MemoryStream())
            {
                innerImage.Save(stream);
                smartObjectLayer.Contents = stream.ToArray();
            }
        }

        // 让我们检查修改的内容是否还没有影响渲染。
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        smartObjectLayer.UpdateModifiedContent();

        // 看看更新后的内容是否影响渲染,psd图片是否保存正确
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

// 此示例演示如何使用 ConvertToLinked 方法将嵌入的智能对象转换为外部链接内容。
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("new_panama-papers-4.psd", 0x10caa, 0, 0, 0x280, 0x169, FileFormat.Jpeg);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r3-embedded.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-tiff.psd", 0xca94, 0, 0, 0xb, 0x10, FileFormat.Tiff);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-bmp.psd", 0x278, 0, 0, 0xb, 0x10, FileFormat.Bmp);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-gif.psd", 0x3ec, 0, 0, 0xb, 0x10, FileFormat.Gif);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-jpeg.psd", 0x327, 0, 0, 0xb, 0x10, FileFormat.Jpeg);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-jpeg2000.psd", 0x519f, 0, 0, 0xb, 0x10, FileFormat.Jpeg2000);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-psd.psd", 0xc074, 0, 0, 0xb, 0x10, FileFormat.Psd);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-png.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);

void ExampleOfEmbeddedSmartObjectLayerToLinkedConversion(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    // 这演示了如何将 PSD 文件中的嵌入式智能对象图层转换为外部图层。
    var formatExt = GetFormatExt(format);
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "to_linked_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_to_external.png";
    string psdOutputPath = dataDir + fileName + "_to_external.psd";
    string externalPath = dataDir + fileName + "_external." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        Directory.CreateDirectory(Path.GetDirectoryName(externalPath));
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        smartObjectLayer.ConvertToLinked(externalPath);

        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);

        // 让我们检查转换后的图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }

    using (PsdImage image = (PsdImage)Image.Load(psdOutputPath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);
    }
}

// 此示例演示如何使用 EmbedLinked 方法在 PSD 文件中嵌入一个外部智能对象图层或所有链接图层。
ExampleOfLinkedSmartObjectLayerToEmbeddedConversion("rgb8_2x2_linked.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfLinkedSmartObjectLayerToEmbeddedConversion("rgb8_2x2_linked2.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
void ExampleOfLinkedSmartObjectLayerToEmbeddedConversion(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "to_embedded_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_to_embedded.png";
    string psdOutputPath = dataDir + fileName + "_to_embedded.psd";
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer0 = (SmartObjectLayer)image.Layers[0];
        smartObjectLayer0.EmbedLinked();
        AssertAreEqual(contentsLength, smartObjectLayer0.Contents.Length);
        AssertAreEqual(left, smartObjectLayer0.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer0.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer0.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer0.ContentsBounds.Bottom);
        if (image.Layers.Length >= 2)
        {
            var smartObjectLayer1 = (SmartObjectLayer)image.Layers[1];
            AssertAreEqual(SmartObjectType.Embedded, smartObjectLayer0.ContentType);
            AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer1.ContentType);

            image.SmartObjectProvider.EmbedAllLinked();
            foreach (Layer layer in image.Layers)
            {
                var smartLayer = layer as SmartObjectLayer;
                if (smartLayer != null)
                {
                    AssertAreEqual(SmartObjectType.Embedded, smartLayer.ContentType);
                }
            }
        }

        Directory.CreateDirectory(Path.GetDirectoryName(psdOutputPath));
        // 让我们检查转换后的图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }

    using (PsdImage image = (PsdImage)Image.Load(psdOutputPath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.Embedded, smartObjectLayer.ContentType);
    }
}

// 此示例演示如何更改 Adobe® Photoshop® 外部智能对象图层并导出/更新其内容
// 使用 ExportContents 和 ReplaceContents 方法。
ExampleOfExternalSmartObjectLayerSupport("rgb8_2x2_linked.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfExternalSmartObjectLayerSupport("rgb8_2x2_linked2.psd", 0x4aea, 0, 0, 10, 10, FileFormat.Psd);
void ExampleOfExternalSmartObjectLayerSupport(string filePath, int contentsLength, int left, int top, int right, int bottom, FileFormat format)
{
    string formatExt = GetFormatExt(format);
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "external_support_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + ".png";
    string psdOutputPath = dataDir + fileName + ".psd";
    string linkOutputPath = dataDir + fileName + "_inverted." + formatExt;
    string png2OutputPath = dataDir + fileName + "_updated.png";
    string psd2OutputPath = dataDir + fileName + "_updated.psd";
    string exportPath = dataDir + fileName + "_export." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[image.Layers.Length - 1];
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);

        Directory.CreateDirectory(Path.GetDirectoryName(exportPath));
        // 让我们从 PSD 智能对象层导出链接的智能对象图像
        smartObjectLayer.ExportContents(exportPath);

        // 让我们检查原始图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(null))
        {
            AssertAreEqual(format, innerImage.FileFormat);

            // 让我们反转链接的智能对象图像
            InvertImage(innerImage);
            innerImage.Save(linkOutputPath);

            // 让我们替换 PSD 层中链接的智能对象图像
            smartObjectLayer.ReplaceContents(linkOutputPath);
        }

        // 让我们检查更新的图像是否正确保存
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

// 反转图像。
void InvertImage(RasterImage innerImage)
{
    var innerPsdImage = innerImage as PsdImage;
    if (innerPsdImage != null)
    {
        InvertRasterImage(innerPsdImage.Layers[0]);
    }
    else
    {
        InvertRasterImage(innerImage);
    }
}

// 反转光栅图像。
void InvertRasterImage(RasterImage innerImage)
{
    var pixels = innerImage.LoadArgb32Pixels(innerImage.Bounds);
    for (int i = 0; i < pixels.Length; i++)
    {
        var pixel = pixels[i];
        var alpha = (int)(pixel & 0xff000000);
        pixels[i] = (~(pixel & 0x00ffffff)) | alpha;
    }

    innerImage.SaveArgb32Pixels(innerImage.Bounds, pixels);
}

// 获取格式扩展名。
string GetFormatExt(FileFormat format)
{
    string formatExt = format == FileFormat.Jpeg2000 ? "jpf" : format.ToString().ToLowerInvariant();
    return formatExt;
}

也可以看看