Question

我必须创建一个包含大量图表的非常大的Word文档（是的，它必须是Word）。这些图由第三方应用程序生成。由于第三方应用程序仅支持小于8 MiB的Word文档，并且我必须生成的文档要大得多，因此我将图片绘制到单个文档中，每个文档一个，然后将它们提取出来，并将它们添加到我的最终文档中。 / p>

他们使用的“图片格式”是一些通过OLE嵌入的专有内容。双击它会在后台打开一个应用程序，允许在图片中进行缩放和平移。现在，当离开这个图片编辑器时，图片突然缩小，破坏了文档的布局。我从中提取图片的原始文档没有表现出这种行为。

目前，我所做的是：

将图片绘制到临时文档中，让它为temp.docx
将temp.docx打开为WordprocessingDocument
提取专有二进制图像数据，将其设为plot.bin
提取其WMF表示，让它为plot.wmf
搜索相应的Shape对象，创建其Shapetype孩子
将plot.bin添加为EmbeddedObjectPart
将plot.wmf添加为ImagePart
创建一个Shape，其中ImageData孩子的ID为plot.wmf
创建OleObject
将图片添加为段落作为相应的EmbeddedObject部分

当我查看生成的XML时，它看起来与原始文档完全相同。

以下是代码部分：

    /// <summary>
    /// Adds a picture
    /// </summary>
    /// <param name="doc">Document to add picture to</param>
    /// <param name="pictureFile">File with proprietary picture data</param>
    /// <param name="wmfRepresentationFile">WMF representation of the proprietary picture file</param>
    /// <param name="pictureNumber">A rising number of the embedded picture. Incremented upon
    /// embedding the picture!</param>
    private static void AddPicture(WordprocessingDocument doc,
                                   string pictureFile,
                                   string wmfRepresentationFile,
                                   Shapetype shapeType,
                                   ref int pictureNumber) {
        LOG.Debug("Embedding the picture in the document");
        var emObj = doc.MainDocumentPart.AddEmbeddedObjectPart("application/vnd.openxmlformats-officedocument.oleObject");
        using (var pictureIn = new FileStream(pictureFile, FileMode.Open, FileAccess.Read, FileShare.Read))
        using (var oleOut = emObj.GetStream(FileMode.OpenOrCreate, FileAccess.Write)) {
            oleOut.Position = 0;
            pictureIn.CopyTo(oleOut);
            oleOut.Flush();
        }
        // An OLE embedded object also needs an image part.
        var image = doc.MainDocumentPart.AddImagePart(ImagePartType.Wmf);
        using (var imageIn = new FileStream(wmfRepresentationFile, FileMode.Open, FileAccess.Read, FileShare.Read))
        using (var imageOut = image.GetStream(FileMode.OpenOrCreate, FileAccess.Write)) {
            imageOut.Position = 0;
            imageIn.CopyTo(imageOut);
            imageOut.Flush();
        }
        // Get some IDs we need for the linking
        var objectPartId = doc.MainDocumentPart.GetIdOfPart(emObj);
        var objectId = ("_" + emObj.GetHashCode().ToString() + "000000").Substring(0, 11);
        var imagePartId = doc.MainDocumentPart.GetIdOfPart(image);
        // Create a new paragraph with the embedded object.
        // First, a "Shape"
        var shape = new Shape() {
            Id = "_x0000_i10" + pictureNumber,
            Style = "width:500.0pt;height:600.0pt", // Sets the size of the picture in the document
            Ole = new TrueFalseBlankValue(),
            Type = "#_x0000_t75",
        };
        // This must contain the "imagedata" - a link to the image representation of the
        // empty active picture
        shape.AppendChild(new ImageData() {
            Title = "",
            RelationshipId = imagePartId
        });
        // Now, the link to the active picture itself
        var ole = new OleObject() {
            Type = OleValues.Embed,
            ProgId = "Foo.Proprietary.Picture.1",
            ShapeId = "_x0000_i10" + pictureNumber,
            DrawAspect = OleDrawAspectValues.Content,
            ObjectId = objectId,
            Id = objectPartId
        };
        // Now, wrap everything into a Paragraph / Run / EmbeddedObject
        var pictureParagraph = new Paragraph(new Run(new EmbeddedObject(shapeType, shape, ole)));
        // And append it
        doc.MainDocumentPart.Document.Body.AppendChild(pictureParagraph);
        // Increase the image counter
        pictureNumber++;
    }

我错过了什么/做错了什么？

OpenXML SDK：编辑

0 个答案: