使用OpenXML操作PPT公共方法总结

推荐一个ppt模板操作工具: https://github.com/tkrotoff/PptxTemplater

然后进入正题...

一 拷贝一个幻灯片

private static long SLIDE_ID = 1000;
private static uint UNIQUE_ID = 0;

/// <summary>
/// 拷贝一个幻灯片
/// </summary>
/// <param name="destPresentationPart"></param>
/// <param name="slidePartTemplate"></param>
/// <param name="offsetToLast"></param>
/// <returns></returns>
public static SlidePart CloneSlidePart(PresentationPart destPresentationPart, SlidePart slidePartTemplate, int? offsetToLast = 2)
{
    int? insertAt = null;
    if (offsetToLast != null)
    {
        insertAt = destPresentationPart.SlideParts.Count() - offsetToLast.Value;
    }

    // If the merged presentation does not have a SlideIdList 
    // element yet, add it.
    if (destPresentationPart.Presentation.SlideIdList == null)
    {
        destPresentationPart.Presentation.SlideIdList = new SlideIdList();
    }

    // Get unique ids for the slide master and slide lists
    // for use later.
    UNIQUE_ID = GetMaxSlideMasterId(destPresentationPart.Presentation.SlideMasterIdList);

    uint maxSlideId = GetMaxSlideId(destPresentationPart.Presentation.SlideIdList);
    SlidePart destSp;
    SlideMasterPart destMasterPart;
    string relId;
    SlideMasterId newSlideMasterId;
    SlideId newSlideId;

    // Add the slide part to the destination presentation.
    relId = "slide" + (SLIDE_ID++);
    destSp = destPresentationPart.AddPart<SlidePart>(slidePartTemplate, relId);

    // The slide master part was added. Make sure the
    // relationship between the main presentation part and
    // the slide master part is in place.
    destMasterPart = destSp.SlideLayoutPart.SlideMasterPart;
    destPresentationPart.AddPart(destMasterPart);

    // Add the slide master id to the slide master id list.
    UNIQUE_ID++;
    newSlideMasterId = new SlideMasterId();
    newSlideMasterId.RelationshipId = destPresentationPart.GetIdOfPart(destMasterPart);
    newSlideMasterId.Id = UNIQUE_ID;
    destPresentationPart.Presentation.SlideMasterIdList.Append(newSlideMasterId);

    // Add the slide id to the slide id list.
    maxSlideId++;
    newSlideId = new SlideId();
    newSlideId.RelationshipId = relId;
    newSlideId.Id = maxSlideId;
    if (insertAt != null)
    {
        destPresentationPart.Presentation.SlideIdList.InsertAt(newSlideId, insertAt.Value);
    }
    else
    {
        destPresentationPart.Presentation.SlideIdList.Append(newSlideId);
    }

    // Make sure that all slide layout ids are unique.
    FixSlideLayoutIds(destPresentationPart);

    // Save the changes to the destination deck.
    destPresentationPart.Presentation.Save();

    return destSp;
}

/// <summary>
/// FixSlideLayoutIds
/// </summary>
/// <param name="presPart"></param>
private static void FixSlideLayoutIds(PresentationPart presPart)
{
    // Make sure that all slide layouts have unique ids.2020/6/20
    foreach (SlideMasterPart slideMasterPart in
      presPart.SlideMasterParts)
    {
        foreach (SlideLayoutId slideLayoutId in
          slideMasterPart.SlideMaster.SlideLayoutIdList)
        {
            UNIQUE_ID++;
            slideLayoutId.Id = (uint)UNIQUE_ID;
        }

        slideMasterPart.SlideMaster.Save();
    }
}

/// <summary>
/// GetMaxSlideId
/// </summary>
/// <param name="slideIdList"></param>
/// <returns></returns>
private static uint GetMaxSlideId(SlideIdList slideIdList)
{
    // Slide identifiers have a minimum value of greater than or
    // equal to 256 and a maximum value of less than 2147483648. 
    uint max = 256;

    if (slideIdList != null)
        // Get the maximum id value from the current set of children.
        foreach (SlideId child in slideIdList.Elements<SlideId>())
        {
            uint id = child.Id;

            if (id > max)
                max = id;
        }

    return max;
}

/// <summary>
/// GetMaxSlideMasterId
/// </summary>
/// <param name="slideMasterIdList"></param>
/// <returns></returns>
private static uint GetMaxSlideMasterId(SlideMasterIdList slideMasterIdList)
{
    // Slide master identifiers have a minimum value of greater than
    // or equal to 2147483648. 
    uint max = 2147483648;

    if (slideMasterIdList != null)
        // Get the maximum id value from the current set of children.
        foreach (SlideMasterId child in
          slideMasterIdList.Elements<SlideMasterId>())
        {
            uint id = child.Id;

            if (id > max)
                max = id;
        }

    return max;
}

二 表格中创建文本单元格

using D = DocumentFormat.OpenXml.Drawing;

/// <summary>
/// 创建文本单元格
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static D.TableCell CreateTextCell(string text, int? tableRowIndex, int fontSize = 12, string borderLineHexColor = "1784C7")
{
    var textCol = new string[2];
    if (!string.IsNullOrEmpty(text))
    {
        if (text.Length > 25)
        {
            textCol[0] = text.Substring(0, 25);
            textCol[1] = text.Substring(26);
        }
        else
        {
            textCol[0] = text;
        }
    }
    else
    {
        textCol[0] = string.Empty;
    }

    var tableCell = new D.TableCell();
    var textBody = new D.TextBody();
    var bodyProperties = new D.BodyProperties();
    var listStyle = new D.ListStyle();

    textBody.Append(bodyProperties);
    textBody.Append(listStyle);

    var nonNull = textCol.Where(t => t != null).ToList();
    foreach (var textVal in nonNull)
    {
        var paragraph = new D.Paragraph();
        var paragraphProperties = new D.ParagraphProperties()
        {
            Alignment = D.TextAlignmentTypeValues.Center,  //水平居中
        };

        var run = new D.Run();
        var runProperties = new D.RunProperties()
        {
            Language = "en-US",
            Dirty = false,
            //SmtClean = false,
            FontSize = fontSize * 100,  //字体大小
        };
        //设置字体颜色
        //D.SolidFill solidFill = new D.SolidFill();
        //D.RgbColorModelHex rgbColorModelHex = new D.RgbColorModelHex() { Val = "0070C0" };
        //solidFill.Append(rgbColorModelHex);
        //runProperties.Append(solidFill);
        // 设置文本
        var drawingText = new D.Text()
        {
            Text = textVal,
        };

        run.Append(runProperties);
        run.Append(drawingText);
        paragraph.Append(paragraphProperties);
        paragraph.Append(run);
        textBody.Append(paragraph);
    }

    var tableCellProperties = new D.TableCellProperties()
    {
        Anchor = D.TextAnchoringTypeValues.Center,   //垂直居中
    };
    //设置单元格边框属性(线型,线宽,颜色等)
    SetTableCellBorderLineProperties(tableCellProperties, D.PresetLineDashValues.Dot, D.CompoundLineValues.Single, 2000, borderLineHexColor);
    //设置单元格填充属性
    if (tableRowIndex != null)
    {
        string tableCellFillColor = (tableRowIndex.Value % 2 == 0) ? "FFFFFF" : "F2F2F2";
        var tableCellSolidFill = new D.SolidFill()
        {
            RgbColorModelHex = new D.RgbColorModelHex() { Val = tableCellFillColor }
        };
        tableCellProperties.Append(tableCellSolidFill);
    }

    tableCell.Append(textBody);
    tableCell.Append(tableCellProperties);
    return tableCell;
}

/// <summary>
/// SetTableCellBorderLineProperties
/// </summary>
/// <param name="tableCellProperties"></param>
/// <param name="presetLineDashValues"></param>
/// <param name="lineType"></param>
/// <param name="lineHexColor"></param>
private static void SetTableCellBorderLineProperties(D.TableCellProperties tableCellProperties, D.PresetLineDashValues presetLineDashValues, D.CompoundLineValues lineType, int lineWidth, string lineHexColor)
{
    //left border
    var leftBorderLineProperties = new D.LeftBorderLineProperties() { CompoundLineType = lineType, Width = lineWidth };
    var solidFillL = new D.SolidFill() { RgbColorModelHex = new D.RgbColorModelHex() { Val = lineHexColor } };
    var presetDashL = new D.PresetDash() { Val = presetLineDashValues };
    leftBorderLineProperties.Append(solidFillL);
    leftBorderLineProperties.Append(presetDashL);
    tableCellProperties.Append(leftBorderLineProperties);
    //right border
    var rightBorderLineProperties = new D.RightBorderLineProperties() { CompoundLineType = lineType, Width = lineWidth };
    var solidFillR = new D.SolidFill() { RgbColorModelHex = new D.RgbColorModelHex() { Val = lineHexColor } };
    var presetDashR = new D.PresetDash() { Val = presetLineDashValues };
    rightBorderLineProperties.Append(solidFillR);
    rightBorderLineProperties.Append(presetDashR);
    tableCellProperties.Append(rightBorderLineProperties);
    //top border
    var topBorderLineProperties = new D.TopBorderLineProperties() { CompoundLineType = lineType, Width = lineWidth };
    var solidFillT = new D.SolidFill() { RgbColorModelHex = new D.RgbColorModelHex() { Val = lineHexColor } };
    var presetDashT = new D.PresetDash() { Val = presetLineDashValues };
    topBorderLineProperties.Append(solidFillT);
    topBorderLineProperties.Append(presetDashT);
    tableCellProperties.Append(topBorderLineProperties);
    //bottom border
    var bottomBorderLineProperties = new D.BottomBorderLineProperties() { CompoundLineType = lineType, Width = lineWidth };
    var solidFillB = new D.SolidFill() { RgbColorModelHex = new D.RgbColorModelHex() { Val = lineHexColor } };
    var presetDashB = new D.PresetDash() { Val = presetLineDashValues };
    bottomBorderLineProperties.Append(solidFillB);
    bottomBorderLineProperties.Append(presetDashB);
    tableCellProperties.Append(bottomBorderLineProperties);
}

三 ppt幻灯片添加图片

/// <summary>
/// 添加图片
/// </summary>
/// <param name="slidePart">slidePart</param>
/// <param name="imageBytes">imageBytes</param>
/// <param name="offsetX">X轴偏移</param>
/// <param name="offsetY">Y轴偏移</param>
/// <param name="sizeX">X轴尺寸</param>
/// <param name="sizeY">Y轴尺寸</param>
public static void AddImage(SlidePart slidePart, byte[] imageBytes, long offsetX, long offsetY, long sizeX, long sizeY)
{
    var imagePart = slidePart.AddImagePart(ImagePartType.Png);
    using (var memoryStream = new MemoryStream(imageBytes))
    {
        imagePart.FeedData(memoryStream);
    }
    var tree = slidePart
        .Slide
        .Descendants<DocumentFormat.OpenXml.Presentation.ShapeTree>()
        .First();

    var picture = new DocumentFormat.OpenXml.Presentation.Picture();
    picture.NonVisualPictureProperties = new DocumentFormat.OpenXml.Presentation.NonVisualPictureProperties();
    picture.NonVisualPictureProperties.Append(new DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties
    {
        Name = "My Shape",
        Id = (UInt32)tree.ChildElements.Count - 1
    });

    var nonVisualPictureDrawingProperties = new DocumentFormat.OpenXml.Presentation.NonVisualPictureDrawingProperties();
    nonVisualPictureDrawingProperties.Append(new DocumentFormat.OpenXml.Drawing.PictureLocks()
    {
        NoChangeAspect = true
    });
    picture.NonVisualPictureProperties.Append(nonVisualPictureDrawingProperties);
    picture.NonVisualPictureProperties.Append(new DocumentFormat.OpenXml.Presentation.ApplicationNonVisualDrawingProperties());

    var blipFill = new DocumentFormat.OpenXml.Presentation.BlipFill();
    var blip1 = new DocumentFormat.OpenXml.Drawing.Blip()
    {
        Embed = slidePart.GetIdOfPart(imagePart)
    };
    var blipExtensionList1 = new DocumentFormat.OpenXml.Drawing.BlipExtensionList();
    var blipExtension1 = new DocumentFormat.OpenXml.Drawing.BlipExtension()
    {
        Uri = "{28A0092B-C50C-407E-A947-70E740481C1C}"
    };
    var useLocalDpi1 = new DocumentFormat.OpenXml.Office2010.Drawing.UseLocalDpi()
    {
        Val = false
    };
    useLocalDpi1.AddNamespaceDeclaration("a14", "http://schemas.microsoft.com/office/drawing/2010/main");
    blipExtension1.Append(useLocalDpi1);
    blipExtensionList1.Append(blipExtension1);
    blip1.Append(blipExtensionList1);
    var stretch = new DocumentFormat.OpenXml.Drawing.Stretch();
    stretch.Append(new DocumentFormat.OpenXml.Drawing.FillRectangle());
    blipFill.Append(blip1);
    blipFill.Append(stretch);
    picture.Append(blipFill);

    picture.ShapeProperties = new DocumentFormat.OpenXml.Presentation.ShapeProperties();
    picture.ShapeProperties.Transform2D = new DocumentFormat.OpenXml.Drawing.Transform2D();
    picture.ShapeProperties.Transform2D.Append(new DocumentFormat.OpenXml.Drawing.Offset
    {
        X = offsetX,
        Y = offsetY,
    });
    picture.ShapeProperties.Transform2D.Append(new DocumentFormat.OpenXml.Drawing.Extents
    {
        Cx = sizeX,
        Cy = sizeY,
    });
    picture.ShapeProperties.Append(new DocumentFormat.OpenXml.Drawing.PresetGeometry
    {
        Preset = DocumentFormat.OpenXml.Drawing.ShapeTypeValues.Rectangle
    });

    tree.Append(picture);
}