SmartObjectLayer.LoadContents

SmartObjectLayer.LoadContents method

Mendapat konten gambar tersemat atau tertaut dari lapisan objek pintar.

public Image LoadContents(LoadOptions options)
ParameterJenisKeterangan
optionsLoadOptionsOpsi.

Nilai Pengembalian

Yang dimuatImage contoh objek pintar.

Contoh

Kode berikut menunjukkan dukungan objek Cerdas Tertanam.

[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));
    }
}

// Contoh ini menunjukkan cara mengubah lapisan objek pintar di file PSD dan mengekspor/memperbarui konten tersemat asli objek pintar.
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);

        // Mari ekspor gambar objek pintar tersemat dari lapisan objek pintar PSD
        smartObjectLayer.ExportContents(exportPath);

        // Mari kita periksa apakah gambar aslinya disimpan dengan benar
        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);

            // Mari kita membalikkan gambar smart object asli
            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);

            // Mari kita ganti gambar objek pintar tersemat di lapisan PSD
            smartObjectLayer.ReplaceContents(innerImage);
        }

        // Mari kita periksa apakah gambar yang diperbarui disimpan dengan benar
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

Lihat juga

SmartObjectLayer.ExportContents SmartObjectLayer.NewSmartObjectViaCopy