LiFeDataSource

LiFeDataSource class

Defines the LnkeDataSource class that contains information about external linked file. This is part of PSD File Format Manipulation API that helps to modify Adobe® Photoshop® files

public class LiFeDataSource : LinkDataSource

Constructors

Name Description
LiFeDataSource() Initializes a new instance of the LiFeDataSource class.
LiFeDataSource(int, Guid, string, string, string) Initializes a new instance of the LiFeDataSource class.

Properties

Name Description
AdobeStockId { get; set; } Gets or sets the graphics library AdobeStockId, for Adobe® Photoshop® CC Libraries.
AdobeStockLicenseState { get; } Gets the state of the adobe stock license if available, for Adobe® Photoshop® CC libraries.
AssetLockedState { get; set; } Gets or sets a value indicating whether the PSD asset is locked. The asset locked state, for Adobe® Photoshop® СС Libraries assets.
AssetModTime { get; set; } Gets or sets the asset modified time, for Adobe® Photoshop® СС Libraries assets.
ChildDocId { get; set; } Gets or sets the child document identifier in the liFE or liFD data source of the Lnk2 / LnkE Adobe® Photoshop® resource.
CompId { get; set; } Gets or sets the ID of the currently selected comp for the child document, which will be -1 if none are selected. Comps are compositions of a page layout which designers can create. Using layer comps, you can create, manage, and view multiple versions of a layout in a single Adobe® Photoshop® file. A layer comp is a snapshot of a state of the Layers panel. Layer comps save three types of layer options but this property gets the Layer Comp selection identifier for Smart Objects. Layer comps in Smart Objects
Date { get; set; } Gets or sets the last write date and time of the external file in the LiFE data source of the PSD LnkE resource.
ElementName { get; set; } Gets or sets the graphics library element name, for Adobe® Photoshop® CC Libraries.
ElementRef { get; set; } Gets or sets the graphics library element reference, for Adobe® Photoshop® CC Libraries.
FileCreator { get; set; } Gets or sets the file creator in the PSD format LnkE / Lnk2 resource.
FileName { get; set; } Gets or sets the name of the external or embedded file in the PSD link resource .
FileSize { get; set; } Gets or sets the size of the external file in the LiFE data source of the PSD LnkE resource.
FileType { get; set; } Gets or sets the type of the embedded or external file which Adobe® Photoshop® Lnk2 / LnkE resource contains or links.
FullPath { get; set; } Gets or sets the full path of the external file in the LiFE data source of the PSD LnkE resource.
HasFileOpenDescriptor { get; set; } Gets or sets a value indicating whether this link data source has the file open descriptor: CompId and OriginalCompId.
IsLibraryLink { get; } Gets a value indicating whether this PSD link data source links to the Adobe® Photoshop® СС Library item.
Length { get; } Gets the link data source length in bytes.
OriginalCompId { get; } Gets the original ID of the currently selected Comp for the child document, which will be -1 if none are selected. This property gets the original layer Comp selection identifier for Smart Objects. Layer comps in Smart Objects
OriginalFileName { get; } Gets the original file name of the data source in the Adobe® Photoshop® global link resource.
RelativePath { get; set; } Gets or sets the relative path of the external file in the LiFE data source of the PSD LnkE resource.
Type { get; } Gets the Adobe® Photoshop® global link data source type that can be one of the following or none: The embedded linked file liFD that corresponds to the PSD Lnk2Resource The external linked file liFE that corresponds to the PSD LnkeResource The linked file alias liFA
UniqueId { get; } Gets the global unique identifier of the data source in the PSD link resource.
Version { get; } Gets the version of the data source in the PSD LnkE / Lnk2 resource.

Examples

This example demonstrates how to get and set properties of the Psd LnkE Resource.

[C#]

string message = "The example works incorrectly.";
void AssertAreEqual(object actual, object expected)
{
    if (!object.Equals(actual, expected))
    {
        throw new FormatException(message);
    }
}

// This example demonstrates how to get and set properties of the Psd LnkE Resource that contains information about an external linked file.
void ExampleOfLnkEResourceSupport(
    string fileName,
    int length,
    int length2,
    int length3,
    int length4,
    string fullPath,
    string date,
    double assetModTime,
    string childDocId,
    bool locked,
    string uid,
    string name,
    string originalFileName,
    string fileType,
    long size,
    int version)
{
    string outputPath = fileName;
    using (PsdImage image = (PsdImage)Image.Load(fileName))
    {
        LnkeResource lnkeResource = null;
        foreach (var resource in image.GlobalLayerResources)
        {
            lnkeResource = resource as LnkeResource;
            if (lnkeResource != null)
            {
                LiFeDataSource lifeSource = lnkeResource[0];
                AssertAreEqual(lnkeResource.Length, length);
                AssertAreEqual(lifeSource.UniqueId, new Guid(uid));
                AssertAreEqual(lifeSource.FullPath, fullPath);
                AssertAreEqual(lifeSource.Date.ToString(CultureInfo.InvariantCulture), date);
                AssertAreEqual(lifeSource.AssetModTime, assetModTime);
                AssertAreEqual(lifeSource.FileName, name);
                AssertAreEqual(lifeSource.FileSize, size);
                AssertAreEqual(lifeSource.ChildDocId, childDocId);
                AssertAreEqual(lifeSource.Version, version);
                AssertAreEqual(lifeSource.FileType.TrimEnd(' '), fileType);
                AssertAreEqual(lifeSource.FileCreator.TrimEnd(' '), string.Empty);
                AssertAreEqual(lifeSource.OriginalFileName, originalFileName);
                AssertAreEqual(false, lnkeResource.IsEmpty);
                AssertAreEqual(true, lifeSource.Type == LinkDataSourceType.liFE);
                if (version == 7)
                {
                    AssertAreEqual(lifeSource.AssetLockedState, locked);
                }

                if (lifeSource.HasFileOpenDescriptor)
                {
                    AssertAreEqual(lifeSource.CompId, -1);
                    AssertAreEqual(lifeSource.OriginalCompId, -1);
                }

                lifeSource.FullPath =
                    @"file:///C:/Aspose/net/Aspose.Psd/test/testdata/Images/Psd/SmartObjects/rgb8_2x2.png";
                AssertAreEqual(lnkeResource.Length, length2);
                lifeSource.FileName = "rgb8_2x23.png";
                AssertAreEqual(lnkeResource.Length, length3);
                lifeSource.ChildDocId = Guid.NewGuid().ToString();
                AssertAreEqual(lnkeResource.Length, length4);
                lifeSource.Date = DateTime.Now;
                lifeSource.AssetModTime = double.MaxValue;
                lifeSource.FileSize = long.MaxValue;
                lifeSource.FileType = "test";
                lifeSource.FileCreator = "file";
                lifeSource.CompId = int.MaxValue;
                break;
            }
        }

        AssertAreEqual(true, lnkeResource != null);

        image.Save(outputPath, new PsdOptions(image));
    }
}

// This example demonstrates how to get and set properties of the Psd LnkeResource that contains information about external linked JPEG file.
ExampleOfLnkEResourceSupport(
    @"photooverlay_5_new.psd",
    0x21c,
    0x26c,
    0x274,
    0x27c,
    @"file:///C:/Users/cvallejo/Desktop/photo.jpg",
    "05/09/2017 22:24:51",
    0,
    "F062B9DB73E8D124167A4186E54664B0",
    false,
    "02df245c-36a2-11e7-a9d8-fdb2b61f07a7",
    "photo.jpg",
    "photo.jpg",
    "JPEG",
    0x1520d,
    7);

// This example demonstrates how to get and set properties of the PSD LnkeResource that contains information about an external linked PNG file.
ExampleOfLnkEResourceSupport(
    "rgb8_2x2_linked.psd",
    0x284,
    0x290,
    0x294,
    0x2dc,
    @"file:///C:/Aspose/net/Aspose.Psd/test/testdata/Issues/PSDNET-491/rgb8_2x2.png",
    "04/14/2020 14:23:44",
    0,
    string.Empty,
    false,
    "5867318f-3174-9f41-abca-22f56a75247e",
    "rgb8_2x2.png",
    "rgb8_2x2.png",
    "png",
    0x53,
    7);

// This example demonstrates how to get and set properties of the PSD LnkeResource that contains information about two external linked PNG and PSD files.
ExampleOfLnkEResourceSupport(
    "rgb8_2x2_linked2.psd",
    0x590,
    0x580,
    0x554,
    0x528,
    @"file:///C:/Aspose/net/Aspose.Psd/test/testdata/Images/Psd/AddColorBalanceAdjustmentLayer.psd",
    "01/15/2020 13:02:00",
    0,
    "adobe:docid:photoshop:9312f484-3403-a644-8973-e725abc95fb7",
    false,
    "78a5b588-364f-0940-a2e5-a450a031aa48",
    "AddColorBalanceAdjustmentLayer.psd",
    "AddColorBalanceAdjustmentLayer.psd",
    "8BPS",
    0x4aea,
    7);

// This example demonstrates how to get and set properties of the Photoshop Psd LnkeResource that contains information about an external linked CC Libraries Asset.
ExampleOfLnkEResourceSupport(
    "rgb8_2x2_asset_linked.psd",
    0x398,
    0x38c,
    0x388,
    0x3d0,
    @"CC Libraries Asset “rgb8_2x2_linked/rgb8_2x2” (Feature is available in Photoshop CC 2015)",
    "01/01/0001 00:00:00",
    1588890915488.0d,
    string.Empty,
    false,
    "ec15f0a8-7f13-a640-b928-7d29c6e9859c",
    "rgb8_2x2_linked",
    "rgb8_2x2.png",
    "png",
    0,
    7);

The following code demonstrates the support of the LnkeResource resource.

[C#]

void AssertIsTrue(bool condition)
{
    if (!condition)
    {
        throw new FormatException(string.Format("Expected true"));
    }
}

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));
    }
}

object[] ComplexLnkEResourceSupportCases = new object[]
{
    new object[]
    {
        "10fc87d0-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/or hdr btns” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633541.0d,
        "uuid:8485ca8d-9496-7f4d-9ef7-4243a00d4161",
        "OneReview-InDesign-InContextTranslation",
        "or hdr btns.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b4
    },
    new object[]
    {
        "10fc87cc-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/cs Id icon” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633512.0d,
        "uuid:c18be832-adf7-4b43-8223-a9740807a66c",
        "OneReview-InDesign-InContextTranslation",
        "cs Id icon.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b0
    },
    new object[]
    {
        "10fef79c-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/pointer cursor” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633570.0d,
        "uuid:9d7ccaac-f094-214b-8721-1a07ae8700a9",
        "OneReview-InDesign-InContextTranslation",
        "pointer cursor.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x03c0
    },
    new object[]
    {
        "10fef79a-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/x” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633555.0d,
        "uuid:b28aa699-21d6-2d4d-a4c7-790234c1b6ba",
        "OneReview-InDesign-InContextTranslation",
        "x.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x38c
    },
    new object[]
    {
        "10fef79b-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/modal btns” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633562.0d,
        "uuid:1bd42767-058d-da44-bdee-eada3b9d40a5",
        "OneReview-InDesign-InContextTranslation",
        "modal btns.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b0
    },
    new object[]
    {
        "10fc87cd-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/cs ppt icon” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633519.0d,
        "uuid:215499ac-ac44-b44d-894b-9ff2c7008d9d",
        "OneReview-InDesign-InContextTranslation",
        "cs ppt icon.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b4
    },
    new object[]
    {
        "10fc87cf-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/cs AI icon” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633534.0d,
        "uuid:a67964d4-8682-d649-8118-474cb1776264",
        "OneReview-InDesign-InContextTranslation",
        "cs AI icon.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b0
    },
    new object[]
    {
        "10fc87ce-688f-1179-9685-9d0a040abdc3",
        @"CC Libraries Asset “OneReview-InDesign-InContextTranslation/cs PSD icon” (Feature is available in Photoshop CC 2015)",
        "01/01/0001 00:00:00",
        1463698633527.0d,
        "uuid:8e9d5745-9f23-6f49-968e-647a45811bcb",
        "OneReview-InDesign-InContextTranslation",
        "cs PSD icon.ai",
        0L,
        "",
        6,
        "unlicensed",
        false,
        0x3b4
    },
};

void ExampleOfComplexLnkEResourceSupport(string filePath, int length, int length2, object[] dataSourceExpectedValues)
{
    filePath = @"PSDNET652_1\" + filePath;
    string fileName = Path.GetFileName(filePath);
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        LnkeResource lnkeResource = null;
        foreach (var resource in image.GlobalLayerResources)
        {
            lnkeResource = resource as LnkeResource;
            if (lnkeResource != null)
            {
                AssertAreEqual(lnkeResource.DataSourceCount, 8);
                AssertAreEqual(lnkeResource.Length, length);
                AssertAreEqual(lnkeResource.IsEmpty, false);

                for (int i = 0; i < lnkeResource.DataSourceCount; i++)
                {
                    LiFeDataSource liFeSource = lnkeResource[i];
                    object[] expected = (object[])dataSourceExpectedValues[i];
                    AssertAreEqual(liFeSource.Type, LinkDataSourceType.liFE);
                    AssertAreEqual(liFeSource.UniqueId, new Guid((string)expected[0]));
                    AssertAreEqual(liFeSource.FullPath, expected[1]);
                    AssertAreEqual(liFeSource.Date.ToString(CultureInfo.InvariantCulture), expected[2]);
                    AssertAreEqual(liFeSource.AssetModTime, expected[3]);
                    AssertAreEqual(liFeSource.ChildDocId, expected[4]);
                    AssertAreEqual(liFeSource.FileName, expected[5]);
                    AssertAreEqual(liFeSource.OriginalFileName, expected[6]);
                    AssertAreEqual(liFeSource.FileSize, expected[7]);
                    AssertAreEqual(liFeSource.FileType, expected[8]);
                    AssertAreEqual(liFeSource.FileCreator.TrimEnd(' '), string.Empty);
                    AssertAreEqual(liFeSource.Version, expected[9]);
                    AssertAreEqual(liFeSource.AdobeStockLicenseState, expected[10]);
                    AssertAreEqual(liFeSource.HasFileOpenDescriptor, (bool)expected[11]);

                    if (liFeSource.HasFileOpenDescriptor)
                    {
                        AssertAreEqual(liFeSource.CompId, -1);
                        AssertAreEqual(liFeSource.OriginalCompId, -1);
                        liFeSource.CompId = int.MaxValue;
                    }

                    liFeSource.FullPath = @"file:///C:/Aspose/net/Aspose.Psd/test/testdata/Images/Psd/SmartObjects/rgb8_2x2.png";
                    liFeSource.FileName = "rgb8_2x23.png";
                    liFeSource.ChildDocId = Guid.NewGuid().ToString();
                    liFeSource.Date = DateTime.Now;
                    liFeSource.AssetModTime = double.MaxValue;
                    liFeSource.FileSize = long.MaxValue;
                    liFeSource.FileType = "test";
                    liFeSource.FileCreator = "file";
                    AssertAreEqual((int)liFeSource.Length, expected[12]);
                }

                AssertAreEqual(lnkeResource.Length, length2);
                break;
            }
        }

        AssertIsTrue(lnkeResource != null);
    }
}

ExampleOfComplexLnkEResourceSupport(
    "OneReview-InDesign-RefreshPreviewIxD(2).psd",
    0x21ac,
    0x1db8,
    ComplexLnkEResourceSupportCases);

See Also