SmartObjectLayer.RelinkToFile
Contents
[
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]SmartObjectLayer.RelinkToFile method
Re-links the linked smart object to a new file. There is no need to call UpdateModifiedContent method afterwards.
public void RelinkToFile(string linkedPath)
Parameter | Type | Description |
---|---|---|
linkedPath | String | The linked path. |
Examples
The following code demonstrates the support of updating Linked Smart objects.
[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));
}
}
// This example demonstrates how to update the external or embedded smart object layer using these methods:
// 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)
{
// This example demonstrates how to change the smart object layer in the PSD file and export / update its contents.
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));
// Let's export the external smart object image from the PSD smart object layer to a new location
// because we are going to modify it.
smartObjectLayer.ExportContents(exportPath);
smartObjectLayer.RelinkToFile(exportPath);
}
// Let's invert the content of the smart object: inner (not cached) image
using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(new LoadOptions()))
{
InvertImage(innerImage);
using (var stream = new MemoryStream())
{
innerImage.Save(stream);
smartObjectLayer.Contents = stream.ToArray();
}
}
// Let's check whether the modified content does not affect rendering yet.
image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
smartObjectLayer.UpdateModifiedContent();
// Let's check whether the updated content affects rendering and the psd image is saved correctly
image.Save(psd2OutputPath, new PsdOptions(image));
image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
}
}
// This example demonstrates how to convert the embedded smart object to external linked contents using the ConvertToLinked method.
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)
{
// This demonstrates how to convert an embedded smart object layer in the PSD file to external one.
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);
// Let's check if the converted image is saved correctly
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);
}
}
// This example demonstrates how to embed one external smart object layer or all linked layers in the PSD file using the EmbedLinked method.
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));
// Let's check if the converted image is saved correctly
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);
}
}
// This example demonstrates how to change the Adobe® Photoshop® external smart object layer and export / update its contents
// using the ExportContents and ReplaceContents methods.
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));
// Let's export the linked smart object image from the PSD smart object layer
smartObjectLayer.ExportContents(exportPath);
// Let's check if the original image isz saved correctly
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);
// Let's invert the linked smart object image
InvertImage(innerImage);
innerImage.Save(linkOutputPath);
// Let's replace the linked smart object image in the PSD layer
smartObjectLayer.ReplaceContents(linkOutputPath);
}
// Let's check if the updated image is saved correctly
image.Save(psd2OutputPath, new PsdOptions(image));
image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
}
}
// Inverts the image.
void InvertImage(RasterImage innerImage)
{
var innerPsdImage = innerImage as PsdImage;
if (innerPsdImage != null)
{
InvertRasterImage(innerPsdImage.Layers[0]);
}
else
{
InvertRasterImage(innerImage);
}
}
// Inverts the raster image.
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);
}
// Gets the format extension.
string GetFormatExt(FileFormat format)
{
string formatExt = format == FileFormat.Jpeg2000 ? "jpf" : format.ToString().ToLowerInvariant();
return formatExt;
}
See Also
- class SmartObjectLayer
- namespace Aspose.PSD.FileFormats.Psd.Layers.SmartObjects
- assembly Aspose.PSD