Menentukan kelas yang berisi informasi tentang file tersemat dalam format PSD 32 bit per gambar saluran. Sumber tautan mungkin berisi beberapaLiFdDataSource
contoh yang dapat diakses oleh pengindeks.
Contoh ini menunjukkan cara mendapatkan dan mengatur properti dari Lnk2Resource dan Lnk3Resource.
[C#]
void AssertAreEqual(object expected, object actual)
{
if (!object.Equals(actual, expected))
{
throw new FormatException(string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
}
}
object[] Lnk2ResourceSupportCases = new object[]
{
new object[]
{
"00af34a0-a90b-674d-a821-73ee508c5479",
"rgb8_2x2.png",
"png",
string.Empty,
0x53,
0d,
string.Empty,
7,
true,
0x124L,
0x74cL
}
};
object[] LayeredLnk2ResourceSupportCases = new object[]
{
new object[]
{
"69ac1c0d-1b74-fd49-9c7e-34a7aa6299ef",
"huset.jpg",
"JPEG",
string.Empty,
0x9d46,
0d,
"xmp.did:0F94B342065B11E395B1FD506DED6B07",
7,
true,
0x9E60L,
0xc60cL
},
new object[]
{
"5a7d1965-0eae-b24e-a82f-98c7646424c2",
"panama-papers.jpg",
"JPEG",
string.Empty,
0xF56B,
0d,
"xmp.did:BDE940CBF51B11E59D759CDA690663E3",
7,
true,
0xF694L,
0x10dd4L
},
};
object[] LayeredLnk3ResourceSupportCases = new object[]
{
new object[]
{
"2fd7ba52-0221-de4c-bdc4-1210580c6caa",
"panama-papers.jpg",
"JPEG",
string.Empty,
0xF56B,
0d,
"xmp.did:BDE940CBF51B11E59D759CDA690663E3",
7,
true,
0xF694l,
0x10dd4L
},
new object[]
{
"372d52eb-5825-8743-81a7-b6f32d51323d",
"huset.jpg",
"JPEG",
string.Empty,
0x9d46,
0d,
"xmp.did:0F94B342065B11E395B1FD506DED6B07",
7,
true,
0x9E60L,
0xc60cL
},
};
var basePath = "" + Path.DirectorySeparatorChar;
string Output = "output" + Path.DirectorySeparatorChar;
// Menyimpan data smart object di file PSD ke file.
void SaveSmartObjectData(string prefix, string fileName, byte[] data)
{
var filePath = basePath + prefix + "_" + fileName;
using (var container = FileStreamContainer.CreateFileStream(filePath, false))
{
container.Write(data);
}
}
// Memuat data baru untuk smart object di file PSD.
byte[] LoadNewData(string fileName)
{
using (var container = FileStreamContainer.OpenFileStream(basePath + fileName))
{
return container.ToBytes();
}
}
// Mendapatkan dan menyetel properti Sumber Daya PSD Lnk2 / Lnk3 dan sumber data liFD-nya dalam gambar PSD
void ExampleOfLnk2ResourceSupport(
string fileName,
int dataSourceCount,
int length,
int newLength,
object[] dataSourceExpectedValues)
{
using (PsdImage image = (PsdImage)Image.Load(basePath + fileName))
{
Lnk2Resource lnk2Resource = null;
foreach (var resource in image.GlobalLayerResources)
{
lnk2Resource = resource as Lnk2Resource;
if (lnk2Resource != null)
{
AssertAreEqual(lnk2Resource.DataSourceCount, dataSourceCount);
AssertAreEqual(lnk2Resource.Length, length);
AssertAreEqual(lnk2Resource.IsEmpty, false);
for (int i = 0; i < lnk2Resource.DataSourceCount; i++)
{
LiFdDataSource lifdSource = lnk2Resource[i];
object[] expected = (object[])dataSourceExpectedValues[i];
AssertAreEqual(LinkDataSourceType.liFD, lifdSource.Type);
AssertAreEqual(new Guid((string)expected[0]), lifdSource.UniqueId);
AssertAreEqual(expected[1], lifdSource.OriginalFileName);
AssertAreEqual(expected[2], lifdSource.FileType.TrimEnd(' '));
AssertAreEqual(expected[3], lifdSource.FileCreator.TrimEnd(' '));
AssertAreEqual(expected[4], lifdSource.Data.Length);
AssertAreEqual(expected[5], lifdSource.AssetModTime);
AssertAreEqual(expected[6], lifdSource.ChildDocId);
AssertAreEqual(expected[7], lifdSource.Version);
AssertAreEqual((bool)expected[8], lifdSource.HasFileOpenDescriptor);
AssertAreEqual(expected[9], lifdSource.Length);
if (lifdSource.HasFileOpenDescriptor)
{
AssertAreEqual(-1, lifdSource.CompId);
AssertAreEqual(-1, lifdSource.OriginalCompId);
lifdSource.CompId = int.MaxValue;
}
SaveSmartObjectData(
Output + fileName,
lifdSource.OriginalFileName,
lifdSource.Data);
lifdSource.Data = LoadNewData("new_" + lifdSource.OriginalFileName);
AssertAreEqual(expected[10], lifdSource.Length);
lifdSource.ChildDocId = Guid.NewGuid().ToString();
lifdSource.AssetModTime = double.MaxValue;
lifdSource.FileType = "test";
lifdSource.FileCreator = "me";
}
AssertAreEqual(newLength, lnk2Resource.Length);
break;
}
}
AssertAreEqual(true, lnk2Resource != null);
if (image.BitsPerChannel < 32) // Penyimpanan 32 bit per saluran belum didukung
{
image.Save(basePath + Output + fileName, new PsdOptions(image));
}
}
}
// Contoh ini mendemonstrasikan cara mendapatkan dan menyetel properti Sumber Daya PSD Lnk2 dan sumber data liFD-nya untuk 8 bit per saluran.
ExampleOfLnk2ResourceSupport("rgb8_2x2_embedded_png.psd", 1, 0x12C, 0x0000079c, Lnk2ResourceSupportCases);
// Contoh ini mendemonstrasikan cara mendapatkan dan menyetel properti Sumber Daya PSD Lnk3 dan sumber data liFD-nya untuk 32 bit per saluran.
ExampleOfLnk2ResourceSupport("Layered PSD file smart objects.psd", 2, 0x19504, 0x0001d3e0, LayeredLnk3ResourceSupportCases);
// Contoh ini mendemonstrasikan cara mendapatkan dan menyetel properti Sumber Daya PSD Lnk2 dan sumber data liFD-nya untuk 16 bit per saluran.
ExampleOfLnk2ResourceSupport("LayeredSmartObjects16bit.psd", 2, 0x19504, 0x0001d3e0, LayeredLnk2ResourceSupportCases);