public void InsertImageFromByteArrayCustomSize()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Byte[], Double, Double)
//ExSummary:Shows how to import an image into a document from a byte array, with a custom size.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap bitmap = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
using (SkiaSharp.SKFileWStream fs =
new SkiaSharp.SKFileWStream(MyDir + "Artifacts/InsertImageFromByteArrayCustomSize.png"))
{
bitmap.PeekPixels().Encode(fs, SKEncodedImageFormat.Png, 100);
}
builder.InsertImage(bitmap, ConvertUtil.PixelToPoint(250), ConvertUtil.PixelToPoint(144));
builder.Document.Save(MyDir + "Artifacts/Image.CreateFromByteArrayCustomSize.doc");
}
#else
// Prepare a byte array of an image.
using (Image image = Image.FromFile(ImageDir + "Aspose.Words.gif"))
{
using (MemoryStream imageBytes = new MemoryStream())
{
image.Save(imageBytes, ImageFormat.Png);
builder.InsertImage(imageBytes, ConvertUtil.PixelToPoint(250), ConvertUtil.PixelToPoint(144));
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromByteArrayCustomSize.doc");
}
}
#endif
//ExEnd
}
public static bool Resize(SKBitmap dst, SKBitmap src, SKBitmapResizeMethod method)
{
using (var srcPix = src.PeekPixels())
using (var dstPix = dst.PeekPixels()) {
return(SKPixmap.Resize(dstPix, srcPix, method)); // && dst.InstallPixels (dstPix);
}
}
public bool ScalePixels (SKBitmap destination, SKFilterQuality quality)
{
if (destination == null) {
throw new ArgumentNullException (nameof (destination));
}
using (var dstPix = destination.PeekPixels ()) {
return ScalePixels (dstPix, quality);
}
}
public static bool Encode(SKWStream dst, SKBitmap src, SKEncodedImageFormat format, int quality)
{
if (dst == null)
{
throw new ArgumentNullException(nameof(dst));
}
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
using (var pixmap = new SKPixmap()) {
return(src.PeekPixels(pixmap) && Encode(dst, pixmap, format, quality));
}
}
public SKData Encode(SKPixelSerializer serializer)
{
if (serializer == null)
{
throw new ArgumentNullException(nameof(serializer));
}
// try old data
var encoded = EncodedData;
if (encoded != null)
{
if (serializer.UseEncodedData(encoded.Data, (ulong)encoded.Size))
{
return(encoded);
}
else
{
encoded.Dispose();
encoded = null;
}
}
// get new data (raster)
if (!IsTextureBacked)
{
using (var pixmap = PeekPixels()) {
return(serializer.Encode(pixmap));
}
}
// get new data (texture / gpu)
// this involves a copy from gpu to cpu first
if (IsTextureBacked)
{
var info = new SKImageInfo(Width, Height, ColorType, AlphaType, ColorSpace);
using (var temp = new SKBitmap(info))
using (var pixmap = temp.PeekPixels()) {
if (pixmap != null && ReadPixels(pixmap, 0, 0))
{
return(serializer.Encode(pixmap));
}
}
}
// some error
return(null);
}
public void InsertImageFromByteArrayRelativePosition()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Byte[], RelativeHorizontalPosition, Double, RelativeVerticalPosition, Double, Double, Double, WrapType)
//ExSummary:Shows how to import an image into a document from a byte array, also using relative positions.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap bitmap = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
using (SkiaSharp.SKFileWStream fs =
new SkiaSharp.SKFileWStream(MyDir + "Artifacts/InsertImageFromByteArrayCustomSize.png"))
{
bitmap.PeekPixels().Encode(fs, SKEncodedImageFormat.Png, 100);
}
builder.InsertImage(bitmap, RelativeHorizontalPosition.Margin, 100, RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
builder.Document.Save(MyDir + "Artifacts/Image.CreateFromByteArrayCustomSize.doc");
}
#else
// Prepare a byte array of an image.
using (Image image = Image.FromFile(ImageDir + "Aspose.Words.gif"))
{
using (MemoryStream imageBytes = new MemoryStream())
{
image.Save(imageBytes, ImageFormat.Png);
builder.InsertImage(imageBytes, RelativeHorizontalPosition.Margin, 100,
RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromByteArrayRelativePosition.doc");
}
}
#endif
//ExEnd
}
public bool CopyTo(SKBitmap destination, SKColorType colorType)
{
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (!CanCopyTo(colorType))
{
return(false);
}
var srcPM = PeekPixels();
if (srcPM == null)
{
return(false);
}
var dstInfo = srcPM.Info.WithColorType(colorType);
switch (colorType)
{
case SKColorType.Rgb565:
// CopyTo() is not strict on alpha type. Here we set the src to opaque to allow
// the call to ReadPixels() to succeed and preserve this lenient behavior.
if (srcPM.AlphaType != SKAlphaType.Opaque)
{
srcPM = srcPM.WithAlphaType(SKAlphaType.Opaque);
}
dstInfo.AlphaType = SKAlphaType.Opaque;
break;
case SKColorType.RgbaF16:
// The caller does not have an opportunity to pass a dst color space.
// Assume that they want linear sRGB.
dstInfo.ColorSpace = SKColorSpace.CreateSrgbLinear();
if (srcPM.ColorSpace == null)
{
// We can't do a sane conversion to F16 without a dst color space.
// Guess sRGB in this case.
srcPM = srcPM.WithColorSpace(SKColorSpace.CreateSrgb());
}
break;
}
var tmpDst = new SKBitmap();
if (!tmpDst.TryAllocPixels(dstInfo))
{
return(false);
}
var dstPM = tmpDst.PeekPixels();
if (dstPM == null)
{
return(false);
}
// We can't do a sane conversion from F16 without a src color space. Guess sRGB in this case.
if (srcPM.ColorType == SKColorType.RgbaF16 && dstPM.ColorSpace == null)
{
dstPM = dstPM.WithColorSpace(SKColorSpace.CreateSrgb());
}
// ReadPixels does not yet support color spaces with parametric transfer functions. This
// works around that restriction when the color spaces are equal.
if (colorType != SKColorType.RgbaF16 && srcPM.ColorType != SKColorType.RgbaF16 && dstPM.ColorSpace == srcPM.ColorSpace)
{
dstPM = dstPM.WithColorSpace(null);
srcPM = srcPM.WithColorSpace(null);
}
if (!srcPM.ReadPixels(dstPM))
{
return(false);
}
destination.Swap(tmpDst);
return(true);
}
public bool CopyTo(SKBitmap destination, SKColorType colorType)
{
// TODO: instead of working on `destination` directly, we should
// create a temporary bitmap and then inject the data
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (!CanCopyTo(colorType))
{
return(false);
}
SKPixmap srcPM = PeekPixels();
if (srcPM == null)
{
return(false);
}
SKImageInfo dstInfo = srcPM.Info.WithColorType(colorType);
switch (colorType)
{
case SKColorType.Rgb565:
// CopyTo() is not strict on alpha type. Here we set the src to opaque to allow
// the call to ReadPixels() to succeed and preserve this lenient behavior.
if (srcPM.AlphaType != SKAlphaType.Opaque)
{
srcPM = srcPM.WithAlphaType(SKAlphaType.Opaque);
}
dstInfo.AlphaType = SKAlphaType.Opaque;
break;
case SKColorType.RgbaF16:
// The caller does not have an opportunity to pass a dst color space.
// Assume that they want linear sRGB.
dstInfo.ColorSpace = SKColorSpace.CreateSrgbLinear();
if (srcPM.ColorSpace == null)
{
// We can't do a sane conversion to F16 without a dst color space.
// Guess sRGB in this case.
srcPM = srcPM.WithColorSpace(SKColorSpace.CreateSrgb());
}
break;
}
destination.Reset(); // TODO: is this needed?
if (!destination.TryAllocPixels(dstInfo, colorType == SKColorType.Index8 ? ColorTable : null))
{
return(false);
}
SKPixmap dstPM = destination.PeekPixels();
if (dstPM == null)
{
return(false);
}
// We can't do a sane conversion from F16 without a src color space. Guess sRGB in this case.
if (srcPM.ColorType == SKColorType.RgbaF16 && dstPM.ColorSpace == null)
{
dstPM = dstPM.WithColorSpace(SKColorSpace.CreateSrgb());
}
// ReadPixels does not yet support color spaces with parametric transfer functions. This
// works around that restriction when the color spaces are equal.
if (colorType != SKColorType.RgbaF16 && srcPM.ColorType != SKColorType.RgbaF16 && dstPM.ColorSpace == srcPM.ColorSpace)
{
dstPM = dstPM.WithColorSpace(null);
srcPM = srcPM.WithColorSpace(null);
}
if (!srcPM.ReadPixels(dstPM))
{
return(false);
}
return(true);
}
