public bool ReplaceImageInSlide(SlidePart slidePart, string imageFileLocation)
{
this.Logger.Log("Trying to replace image in slide Part");
var mySlideLayoutPart = slidePart.SlideLayoutPart;
ImagePart imagePart = slidePart.AddImagePart("image/png");
var imgRelId = slidePart.GetIdOfPart(imagePart);
FileStream stream = new FileStream(imageFileLocation, FileMode.Open);
imagePart.FeedData(stream);
stream.Close();
// https://blogs.msdn.microsoft.com/brian_jones/2008/11/18/creating-a-presentation-report-based-on-data/
// Find the first image element and replace
try
{
Drawing.Blip blip = slidePart.Slide.Descendants <Blip>().First();
blip.Embed = imgRelId;
this.Logger.Log("Saving slide Part");
slidePart.Slide.Save();
return(true);
}
catch (Exception)
{
return(false);
}
}
public void Create()
{
NewSlidePart = _doc.PresentationPart.AddNewPart <SlidePart>(NewSlideName + _slideId++);
//copy the contents of the template slide to the new slide and attach the appropriate layout
NewSlidePart.FeedData(_teplateSlide.GetStream(FileMode.Open));
NewSlidePart.AddPart(_teplateSlide.SlideLayoutPart,
_teplateSlide.GetIdOfPart(_teplateSlide.SlideLayoutPart));
}
/// <summary>
/// Replaces a picture by another inside the slide.
/// </summary>
/// <param name="tag">The tag associated with the original picture so it can be found, if null or empty do nothing.</param>
/// <param name="newPicture">The new picture (as a byte array) to replace the original picture with, if null do nothing.</param>
/// <param name="contentType">The picture content type: image/png, image/jpeg...</param>
/// <remarks>
/// <see href="http://stackoverflow.com/questions/7070074/how-can-i-retrieve-images-from-a-pptx-file-using-ms-open-xml-sdk">How can I retrieve images from a .pptx file using MS Open XML SDK?</see>
/// <see href="http://stackoverflow.com/questions/7137144/how-can-i-retrieve-some-image-data-and-format-using-ms-open-xml-sdk">How can I retrieve some image data and format using MS Open XML SDK?</see>
/// <see href="http://msdn.microsoft.com/en-us/library/office/bb497430.aspx">How to: Insert a Picture into a Word Processing Document</see>
/// </remarks>
private void ReplacePicture(string tag, byte[] newPicture, string contentType, SlidePart diapositiva)
{
ImagePart imagePart = AddPicture(newPicture, contentType, diapositiva);
foreach (Picture pic in diapositiva.Slide.Descendants <Picture>())
{
var cNvPr = pic.NonVisualPictureProperties.NonVisualDrawingProperties;
if (cNvPr.Name != null)
{
string title = cNvPr.Name.Value;
string rId = diapositiva.GetIdOfPart(imagePart);
pic.BlipFill.Blip.Embed.Value = rId;
}
}
}
/// <summary>
/// Replaces slidePart images
/// </summary>
/// <param name="presentationDocument"></param>
/// <param name="slidePart"></param>
void ReplaceImages(PresentationDocument presentationDocument, SlidePart slidePart)
{
// get all images in the slide
var imagesToReplace = slidePart.Slide.Descendants <Blip>().ToList();
if (imagesToReplace.Any())
{
var index = 0;//image index within the slide
//find all image names in the slide
var slidePartImageNames = slidePart.Slide.Descendants <DocumentFormat.OpenXml.Presentation.Picture>()
.Where(a => a.NonVisualPictureProperties.NonVisualDrawingProperties.Title.HasValue)
.Select(a => a.NonVisualPictureProperties.NonVisualDrawingProperties.Title.Value).Distinct().ToList();
//check all images in the slide and replace them if it matches our parameter
foreach (var imagePlaceHolder in slidePartImageNames)
{
//check if we have image parameter that matches slide part image
foreach (var param in PowerPointParameters)
{
//replace it if found by image name
if (param.Image != null && param.Name.ToLower() == imagePlaceHolder.ToLower())
{
var imagePart = slidePart.AddImagePart(ImagePartType.Jpeg); //add image to document
using (FileStream imgStream = new FileStream(param.Image.FullName, FileMode.Open))
{
imagePart.FeedData(imgStream); //feed it with data
}
var relID = slidePart.GetIdOfPart(imagePart); // get relationship ID
imagesToReplace.Skip(index).First().Embed = relID; //assign new relID, skip if this is another image in one slide part
}
}
index += 1;
}
}
}
/// <summary>
/// Clones this slide.
/// </summary>
/// <returns>The clone.</returns>
/// <remarks>
/// <see href="http://blogs.msdn.com/b/brian_jones/archive/2009/08/13/adding-repeating-data-to-powerpoint.aspx">Adding Repeating Data to PowerPoint</see>
/// <see href="http://startbigthinksmall.wordpress.com/2011/05/17/cloning-a-slide-using-open-xml-sdk-2-0/">Cloning a Slide using Open Xml SDK 2.0</see>
/// <see href="http://www.exsilio.com/blog/post/2011/03/21/Cloning-Slides-including-Images-and-Charts-in-PowerPoint-presentations-Using-Open-XML-SDK-20-Productivity-Tool.aspx">See Cloning Slides including Images and Charts in PowerPoint presentations and Using Open XML SDK 2.0 Productivity Tool</see>
/// </remarks>
public PowerpointSlide Clone()
{
SlidePart slideTemplate = this.slidePart;
// Clone slide contents
SlidePart slidePartClone = this.presentationPart.AddNewPart <SlidePart>();
using (var templateStream = slideTemplate.GetStream(FileMode.Open))
{
slidePartClone.FeedData(templateStream);
}
// Copy layout part
slidePartClone.AddPart(slideTemplate.SlideLayoutPart);
// Copy the image parts
foreach (ImagePart image in slideTemplate.ImageParts)
{
ImagePart imageClone = slidePartClone.AddImagePart(image.ContentType, slideTemplate.GetIdOfPart(image));
using (var imageStream = image.GetStream())
{
imageClone.FeedData(imageStream);
}
}
return(new PowerpointSlide(this.presentationPart, slidePartClone));
}
/// <summary>
/// 在指定位置添加图片 支持 png jpeg gif.
/// </summary>
public Picture AddPicture(SlidePart sldpart, string filePath, D.Transform2D transform)
{
if (!File.Exists(filePath))
{
return(null);
}
var imgprt = sldpart.AddImagePart(AnalysisHelper.GetImagePartType(filePath));
string rlid = sldpart.GetIdOfPart(imgprt);
var tree = sldpart.Slide.CommonSlideData.ShapeTree;
uint maxid = AnalysisHelper.GetMaxId(tree);
Picture pic = new Picture();
pic.NonVisualPictureProperties = new NonVisualPictureProperties
(
new P.NonVisualDrawingProperties()
{
Id = maxid + 1,
Name = $"PIC{maxid + 1}"
},
new P.NonVisualPictureDrawingProperties()
{
PictureLocks = new D.PictureLocks()
{
NoChangeAspect = true
}
},
//必须指定元素的类型，否则会报错。
new ApplicationNonVisualDrawingProperties
(
new PlaceholderShape()
{
Type = PlaceholderValues.Picture
}
)
);
P.BlipFill blipFill = new P.BlipFill();
D.Blip blip = new D.Blip()
{
Embed = rlid
};
D.BlipExtensionList blipExtensionList = new D.BlipExtensionList();
D.BlipExtension blipExtension = new D.BlipExtension()
{
Uri = "{28A0092B-C50C-407E-A947-70E740481C1C}"
};
DocumentFormat.OpenXml.Office2010.Drawing.UseLocalDpi useLocalDpi =
new DocumentFormat.OpenXml.Office2010.Drawing.UseLocalDpi()
{
Val = false
};
useLocalDpi.AddNamespaceDeclaration("a14",
"http://schemas.microsoft.com/office/drawing/2010/main");
blipExtension.Append(useLocalDpi);
blipExtensionList.Append(blipExtension);
blip.Append(blipExtensionList);
D.Stretch stretch = new D.Stretch();
D.FillRectangle fillRectangle = new D.FillRectangle();
stretch.Append(fillRectangle);
blipFill.Append(blip);
blipFill.Append(stretch);
pic.Append(blipFill);
pic.ShapeProperties = new P.ShapeProperties
(
new D.PresetGeometry(new D.AdjustValueList())
{
Preset = D.ShapeTypeValues.Rectangle
}
)
{
Transform2D = transform
};
tree.AppendChild(pic);
using (FileStream fileStream = new FileStream(filePath, FileMode.Open))
{
imgprt.FeedData(fileStream);
}
return(pic);
}
private static void AddImage(string file, List <ImagePath> image)
{
using (var presentationDocument = PresentationDocument.Open(file, true))
{
var slideCount = presentationDocument.PresentationPart.SlideParts.Count();
SlideIdList slideIdList = presentationDocument.PresentationPart.Presentation.SlideIdList;
Presentation presentation = presentationDocument.PresentationPart.Presentation;
PresentationPart presentationPart = presentationDocument.PresentationPart;
OpenXmlElementList slideIds = presentationPart.Presentation.SlideIdList.ChildElements;
int cnt = 0; // 画像の添付数
int j = 0; // 画像添付スライド位置
string relId = (slideIds[j] as SlideId).RelationshipId;
SlidePart slidePart = (SlidePart)presentationPart.GetPartById(relId);
foreach (ImagePath imgPath in image)
{
ImagePart part = slidePart
.AddImagePart(ImagePartType.Png);
using (var stream = File.OpenRead(imgPath.Path))
{
part.FeedData(stream);
}
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 Drawing2.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 Drawing2.Blip()
{
Embed = slidePart.GetIdOfPart(part)
};
var blipExtensionList1 = new Drawing2.BlipExtensionList();
var blipExtension1 = new Drawing2.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 Drawing2.Stretch();
stretch.Append(new Drawing2.FillRectangle());
blipFill.Append(blip1);
blipFill.Append(stretch);
picture.Append(blipFill);
picture.ShapeProperties = new DocumentFormat.OpenXml.Presentation.ShapeProperties();
picture.ShapeProperties.Transform2D = new Drawing2.Transform2D();
int rotation = 0;
switch (imgPath.Rot)
{
case RotateFlipType.RotateNoneFlipNone:
rotation = 0;
picture.ShapeProperties.Transform2D.Append(new Drawing2.Offset
{
X = POSITION0[cnt % 6].X,
Y = POSITION0[cnt % 6].Y,
});
break;
case RotateFlipType.Rotate180FlipNone: // 時計回りに180度回転しているので、180度回転して戻す
rotation = 60000 * 180;
picture.ShapeProperties.Transform2D.Append(new Drawing2.Offset
{
X = POSITION0[cnt % 6].X,
Y = POSITION0[cnt % 6].Y,
});
break;
case RotateFlipType.Rotate90FlipNone: // 時計回りに270度回転しているので、90度回転して戻す
rotation = 60000 * 90;
picture.ShapeProperties.Transform2D.Append(new Drawing2.Offset
{
X = POSITION90[cnt % 6].X,
Y = POSITION90[cnt % 6].Y,
});
break;
case RotateFlipType.Rotate270FlipNone: // 時計回りに90度回転しているので、270度回転して戻す
rotation = 60000 * 270;
picture.ShapeProperties.Transform2D.Append(new Drawing2.Offset
{
X = POSITION90[cnt % 6].X,
Y = POSITION90[cnt % 6].Y,
});
break;
default:
rotation = 0;
picture.ShapeProperties.Transform2D.Append(new Drawing2.Offset
{
X = POSITION0[cnt % 6].X,
Y = POSITION0[cnt % 6].Y,
});
break;
}
picture.ShapeProperties.Transform2D.Rotation = rotation;
// 縦向き
picture.ShapeProperties.Transform2D.Append(new Drawing2.Extents
{
Cx = imgPath.Size.Width,
Cy = imgPath.Size.Height,
});
picture.ShapeProperties.Append(new Drawing2.PresetGeometry
{
Preset = Drawing2.ShapeTypeValues.Rectangle
});
tree.Append(picture);
if (cnt % 6 == 5)
{
if (j < slideCount - 1)
{
j++;
relId = (slideIds[j] as SlideId).RelationshipId;
slidePart = (SlidePart)presentationPart.GetPartById(relId);
}
else
{
// 画像ループを抜ける
break;
}
}
cnt++;
}
// スライドを削除する
for (int i = slideCount - 1; i > j; i--)
{
//Console.WriteLine(i);
SlideId slideId = slideIds[i] as SlideId;
string slideRelId = slideId.RelationshipId;
slideIdList.RemoveChild(slideId);
if (presentation.CustomShowList != null)
{
// Iterate through the list of custom shows.
foreach (var customShow in presentation.CustomShowList.Elements <CustomShow>())
{
if (customShow.SlideList != null)
{
// Declare a link list of slide list entries.
LinkedList <SlideListEntry> slideListEntries = new LinkedList <SlideListEntry>();
foreach (SlideListEntry slideListEntry in customShow.SlideList.Elements())
{
// Find the slide reference to remove from the custom show.
if (slideListEntry.Id != null && slideListEntry.Id == slideRelId)
{
slideListEntries.AddLast(slideListEntry);
}
}
// Remove all references to the slide from the custom show.
foreach (SlideListEntry slideListEntry in slideListEntries)
{
customShow.SlideList.RemoveChild(slideListEntry);
}
}
}
}
presentation.Save();
SlidePart slidePart2 = presentationPart.GetPartById(slideRelId) as SlidePart;
presentationPart.DeletePart(slidePart2);
}
}
}
private string GetIdOfImagePart(ImagePart imagePart, SlidePart diapositiva)
{
return(diapositiva.GetIdOfPart(imagePart));
}
