C# 使用OpenXML将图像插入DocX并设置大小
我正在使用OpenXML将图像插入到文档中。Microsoft提供的代码可以正常工作，但会使图像变得更小：C# 使用OpenXML将图像插入DocX并设置大小,c#,image,openxml,docx,C#,Image,Openxml,Docx,我正在使用OpenXML将图像插入到文档中。Microsoft提供的代码可以正常工作，但会使图像变得更小： public static void InsertAPicture(string document, string fileName) { using (WordprocessingDocument wordprocessingDocument = WordprocessingDocument.Open(document, true))
public static void InsertAPicture(string document, string fileName)
{
using (WordprocessingDocument wordprocessingDocument = WordprocessingDocument.Open(document, true))
{
MainDocumentPart mainPart = wordprocessingDocument.MainDocumentPart;
ImagePart imagePart = mainPart.AddImagePart(ImagePartType.Jpeg);
using (FileStream stream = new FileStream(fileName, FileMode.Open))
{
imagePart.FeedData(stream);
}
AddImageToBody(wordprocessingDocument, mainPart.GetIdOfPart(imagePart));
}
}
private static void AddImageToBody(WordprocessingDocument wordDoc, string relationshipId)
{
// Define the reference of the image.
var element =
new Drawing(
new DW.Inline(
new DW.Extent() { Cx = 990000L, Cy = 792000L },
new DW.EffectExtent()
{
LeftEdge = 0L,
TopEdge = 0L,
RightEdge = 0L,
BottomEdge = 0L
},
new DW.DocProperties()
{
Id = (UInt32Value)1U,
Name = "Picture 1"
},
new DW.NonVisualGraphicFrameDrawingProperties(
new A.GraphicFrameLocks() { NoChangeAspect = true }),
new A.Graphic(
new A.GraphicData(
new PIC.Picture(
new PIC.NonVisualPictureProperties(
new PIC.NonVisualDrawingProperties()
{
Id = (UInt32Value)0U,
Name = "New Bitmap Image.jpg"
},
new PIC.NonVisualPictureDrawingProperties()),
new PIC.BlipFill(
new A.Blip(
new A.BlipExtensionList(
new A.BlipExtension()
{
Uri =
"{28A0092B-C50C-407E-A947-70E740481C1C}"
})
)
{
Embed = relationshipId,
CompressionState = A.BlipCompressionValues.Print
},
new A.Stretch(
new A.FillRectangle())),
new PIC.ShapeProperties(
new A.Transform2D(
new A.Offset() { X = 0L, Y = 0L },
new A.Extents() { Cx = 990000L, Cy = 792000L }),
new A.PresetGeometry(
new A.AdjustValueList()
) { Preset = A.ShapeTypeValues.Rectangle }))
) { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
)
{
DistanceFromTop = (UInt32Value)0U,
DistanceFromBottom = (UInt32Value)0U,
DistanceFromLeft = (UInt32Value)0U,
DistanceFromRight = (UInt32Value)0U,
EditId = "50D07946"
});
// Append the reference to body, the element should be in a Run.
wordDoc.MainDocumentPart.Document.Body.AppendChild(new Paragraph(new Run(element)));
}
var比率=hEmu/wEmu
wEmu=maxPageWidthEmu
hEmu=wEmu*比值
DW.ExtentA.extendsPIC.ShapeProperties的A.Transform2D
中）我正在运行（在服务中），但我现在没有代码 更新 这是我使用的代码：
var img = new BitmapImage(new Uri(fileName, UriKind.RelativeOrAbsolute));
var widthPx = img.PixelWidth;
var heightPx = img.PixelHeight;
var horzRezDpi = img.DpiX;
var vertRezDpi = img.DpiY;
const int emusPerInch = 914400;
const int emusPerCm = 360000;
var widthEmus = (long)(widthPx / horzRezDpi * emusPerInch);
var heightEmus = (long)(heightPx / vertRezDpi * emusPerInch);
var maxWidthEmus = (long)(maxWidthCm * emusPerCm);
if (widthEmus > maxWidthEmus) {
var ratio = (heightEmus * 1.0m) / widthEmus;
widthEmus = maxWidthEmus;
heightEmus = (long)(widthEmus * ratio);
}
FileStreamBitmapImageStreamSourcevar img = new BitmapImage();
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)) {
img.BeginInit();
img.StreamSource = fs;
img.EndInit();
}
// The file is now unlocked
var widthPx = img.PixelWidth;
...
这个代码对我有用 资料来源：
publicstaticvoiddo（）
{
字符串文件名=@“c:\temp\m.docx”；
字节[]reportData=GetWordReport（）；
//writealBytes（文件名、报表数据）；
//Show（“文件”+文件名+“已创建”）；
}
私有静态字节[]GetWordReport（）
{
//使用（MemoryStream stream=new MemoryStream（））
// {
//var template=GetTemplateData（）；
//stream.Write（template，0，template.Length）；
使用（WordprocessingDocument docx=WordprocessingDocument.Open（@“c:\temp\m.docx”，true））
{
//docx的一些变化
docx.MainDocumentPart.Document=GenerateMainDocumentPart（6,4）；
var imagePart=docx.MainDocumentPart.AddNewPart（“image/jpeg”、“rIdImagePart1”）；
生成图像部件（图像部件）；
}
//stream.Seek（0，SeekOrigin.Begin）；
//返回流ToArray（）；
// }
返回null；
}
私有静态字节[]GetTemplateData（）
{
使用（MemoryStream targetStream=new MemoryStream（））
使用（BinaryReader sourceReader=new BinaryReader（File.Open（@“c:\temp\m_2.docx”，FileMode.Open）））
{
字节[]缓冲区=新字节[4096]；
int num=0；
做
{
num=sourceReader.Read（缓冲区，04096）；
如果（数值>0）
写入（缓冲区，0，num）；
}
而（num>0）；
Seek（0，SeekOrigin.Begin）；
返回targetStream.ToArray（）；
}
}
私有静态void GenerateImagePart（OpenXmlPart）
{
使用（Stream-imageStream=File.Open（@“c:\temp\image002.jpg”，FileMode.Open））
{
部分。FeedData（imageStream）；
}
}
私有静态文档生成器IndocumentPart（int cx，int cy）
{
长LCX=cx*261257L；
长LCY=cy*261257L；
变量元素=
新文件(
新机构(
新段落(
新运行(
新运行属性(
新NoProof（）），
新图纸(
新wp.Inline(
新的wp.Extent（）{Cx=LCX，Cy=LCY}，
新的wp.EffectExtent（）{LeftEdge=0L，TopEdge=19050L，RightEdge=0L，BottomEdge=0L}，
新的wp.DocProperties（）{Id=（UInt32Value）1U，Name=“Picture 0”，Description=“Forest Flowers.jpg”}，
新wp.NonVisualGraphic FrameDrawingProperties(
新的a.GraphicFrameLocks（）{NoChangeAspect=true}），
新a.图形(
新a.GraphicData(
新图片(
新图片。非可视图片属性(
新pic.NonVisualDrawingProperties（）{Id=（UInt32Value）0U，Name=“Forest Flowers.jpg”}，
新图片：NonVisualPictureDrawingProperties（）），
新图片。布利普菲尔(
新的a.Blip（）{Embed=“rIdImagePart1”，CompressionState=a.BlipCompressionValues.Print}，
新的a.伸展运动(
新的a.FillRectangle（）），
新pic.ShapeProperties(
氖
var img = new BitmapImage();
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)) {
img.BeginInit();
img.StreamSource = fs;
img.EndInit();
}
// The file is now unlocked
var widthPx = img.PixelWidth;
...
public static void Do()
{
string filename = @"c:\temp\m.docx";
byte[] reportData = GetWordReport();
// File.WriteAllBytes(filename, reportData);
//MessageBox.Show("File " + filename + " created");
}
private static byte[] GetWordReport()
{
// using (MemoryStream stream = new MemoryStream())
// {
//var template = GetTemplateData();
//stream.Write(template, 0, template.Length);
using (WordprocessingDocument docx = WordprocessingDocument.Open(@"c:\temp\m.docx", true))
{
// Some changes on docx
docx.MainDocumentPart.Document = GenerateMainDocumentPart(6,4);
var imagePart = docx.MainDocumentPart.AddNewPart<ImagePart>("image/jpeg", "rIdImagePart1");
GenerateImagePart(imagePart);
}
// stream.Seek(0, SeekOrigin.Begin);
// return stream.ToArray();
// }
return null;
}
private static byte[] GetTemplateData()
{
using (MemoryStream targetStream = new MemoryStream())
using (BinaryReader sourceReader = new BinaryReader(File.Open(@"c:\temp\m_2.docx", FileMode.Open)))
{
byte[] buffer = new byte[4096];
int num = 0;
do
{
num = sourceReader.Read(buffer, 0, 4096);
if (num > 0)
targetStream.Write(buffer, 0, num);
}
while (num > 0);
targetStream.Seek(0, SeekOrigin.Begin);
return targetStream.ToArray();
}
}
private static void GenerateImagePart(OpenXmlPart part)
{
using (Stream imageStream = File.Open(@"c:\temp\image002.jpg", FileMode.Open))
{
part.FeedData(imageStream);
}
}
private static Document GenerateMainDocumentPart(int cx,int cy)
{
long LCX = cx*261257L;
long LCY = cy*261257L;
var element =
new Document(
new Body(
new Paragraph(
new Run(
new RunProperties(
new NoProof()),
new Drawing(
new wp.Inline(
new wp.Extent() { Cx = LCX, Cy = LCY },
new wp.EffectExtent() { LeftEdge = 0L, TopEdge = 19050L, RightEdge = 0L, BottomEdge = 0L },
new wp.DocProperties() { Id = (UInt32Value)1U, Name = "Picture 0", Description = "Forest Flowers.jpg" },
new wp.NonVisualGraphicFrameDrawingProperties(
new a.GraphicFrameLocks() { NoChangeAspect = true }),
new a.Graphic(
new a.GraphicData(
new pic.Picture(
new pic.NonVisualPictureProperties(
new pic.NonVisualDrawingProperties() { Id = (UInt32Value)0U, Name = "Forest Flowers.jpg" },
new pic.NonVisualPictureDrawingProperties()),
new pic.BlipFill(
new a.Blip() { Embed = "rIdImagePart1", CompressionState = a.BlipCompressionValues.Print },
new a.Stretch(
new a.FillRectangle())),
new pic.ShapeProperties(
new a.Transform2D(
new a.Offset() { X = 0L, Y = 0L },
new a.Extents() { Cx = LCX, Cy = LCY }),
new a.PresetGeometry(
new a.AdjustValueList()
) { Preset = a.ShapeTypeValues.Rectangle }))
) { Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture" })
) { DistanceFromTop = (UInt32Value)0U, DistanceFromBottom = (UInt32Value)0U, DistanceFromLeft = (UInt32Value)0U, DistanceFromRight = (UInt32Value)0U }))
) { RsidParagraphAddition = "00A2180E", RsidRunAdditionDefault = "00EC4DA7" },
new SectionProperties(
new PageSize() { Width = (UInt32Value)11906U, Height = (UInt32Value)16838U },
new PageMargin() { Top = 1440, Right = (UInt32Value)1800U, Bottom = 1440, Left = (UInt32Value)1800U, Header = (UInt32Value)851U, Footer = (UInt32Value)992U, Gutter = (UInt32Value)0U },
new Columns() { Space = ((UInt32Value)425U).ToString() },
new DocGrid() { Type = DocGridValues.Lines, LinePitch = 312 }
) { RsidR = "00A2180E", RsidSect = "00A2180E" }));
return element;
}
int iWidth = 0;
int iHeight = 0;
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap("yourFilePath"))
{
iWidth = bmp.Width;
iHeight = bmp.Height;
}
iWidth = (int)Math.Round((decimal)iWidth * 9525);
iHeight = (int)Math.Round((decimal)iHeight * 9525);
new DW.Extent() { Cx = 990000L, Cy = 792000L },
new DW.Extent() { Cx = iWidth, Cy = iHeight },
const int emusPerInch = 914400;
const int emusPerCm = 360000;
long widthEmus;
long heightEmus;
Image<Rgba32> img = Image.Load(sourceStream, new PngDecoder());
switch (img.MetaData.ResolutionUnits)
{
case PixelResolutionUnit.PixelsPerCentimeter :
widthEmus = (long)(img.Width / img.MetaData.HorizontalResolution * emusPerCm);
heightEmus = (long)(img.Height / img.MetaData.VerticalResolution * emusPerCm);
break;
case PixelResolutionUnit.PixelsPerInch:
widthEmus = (long)(img.Width / img.MetaData.HorizontalResolution * emusPerInch);
heightEmus = (long)(img.Height / img.MetaData.VerticalResolution * emusPerInch);
break;
case PixelResolutionUnit.PixelsPerMeter:
widthEmus = (long)(img.Width / img.MetaData.HorizontalResolution * emusPerCm * 100);
heightEmus = (long)(img.Height / img.MetaData.VerticalResolution * emusPerCm * 100);
break;
default:
widthEmus = 2000000;
heightEmus = 2000000;
break;
}
long iWidth = 0;
long iHeight = 0;
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(fullPathToImageFile))
{
iWidth = bmp.Width;
iHeight = bmp.Height;
}
iWidth = (long)Math.Round((decimal)iWidth * 9525);
iHeight = (long)Math.Round((decimal)iHeight * 9525);
double maxWidthCm = 17.4; // Our current margins gives us 17.4cm of space
const int emusPerCm = 360000;
long maxWidthEmus = (long)(maxWidthCm * emusPerCm);
if (iWidth > maxWidthEmus) {
var ratio = (iHeight * 1.0m) / iWidth;
iWidth = maxWidthEmus;
iHeight = (long)(iWidth * ratio);
}