/// <summary>
/// get max slide id
/// </summary>
/// <param name="slideIdList"></param>
/// <returns></returns>
private static uint GetMaxSlideId(SlideIdList slideIdList)
{
uint max = 256;
if (slideIdList != null)
{
foreach (SlideId child in slideIdList.Elements <SlideId>())
{
uint id = child.Id;
if (id > max)
{
max = id;
}
}
}
return(max);
}
private 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);
}
private 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)
{
return(max);
}
foreach (var child in slideIdList.Elements <SlideId>())
{
uint id = child.Id;
if (id > max)
{
max = id;
}
}
return(max);
}
public ISlide InsertSlide(ISlideLayout slideLayout, int index)
{
if (!(slideLayout is IOpenXmlSlideLayout internalSlideLayout))
{
throw new ArgumentException();
}
Slide slide = new Slide()
{
// CommonSlideData = slideLayoutRef.SlideLayoutPart.SlideLayout.CommonSlideData.CloneNode(true) as CommonSlideData
CommonSlideData = new CommonSlideData()
{
ShapeTree = new ShapeTree()
{
NonVisualGroupShapeProperties = internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree.NonVisualGroupShapeProperties.CloneNode(true) as NonVisualGroupShapeProperties,
GroupShapeProperties = internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree.GroupShapeProperties.CloneNode(true) as GroupShapeProperties
}
}
};
slide.CommonSlideData.ShapeTree.Append(
internalSlideLayout.SlideLayoutPart.SlideLayout.CommonSlideData.ShapeTree
.Select(element => OpenXmlVisualFactory.TryCreateVisual(internalSlideLayout, element, out IOpenXmlVisual visual) ? visual : null).Where(visual => visual != null)
.Where(visual => visual?.IsPlaceholder ?? false)
.Select(visual => visual.CloneForSlide())
);
SlidePart slidePart = this.presentationPart.AddNewPart <SlidePart>();
slide.Save(slidePart);
slidePart.CreateRelationshipToPartDefaultId(internalSlideLayout.SlideLayoutPart);
if (this.presentationPart.Presentation.SlideIdList == null)
{
this.presentationPart.Presentation.SlideIdList = new SlideIdList();
}
SlideIdList slideIdList = this.presentationPart.Presentation.SlideIdList;
SlideId refSlideId = slideIdList.Elements <SlideId>().Take(index).LastOrDefault();
uint id = refSlideId?.Id ?? 256;
SlideId slideId;
if (refSlideId != null)
{
slideId = slideIdList.InsertAfter(
new SlideId()
{
Id = ++id, RelationshipId = presentationPart.GetIdOfPart(slidePart)
},
refSlideId
);
}
else
{
slideId = slideIdList.PrependChild(
new SlideId()
{
Id = ++id, RelationshipId = presentationPart.GetIdOfPart(slidePart)
}
);
}
for (slideId = slideId.NextSibling <SlideId>(); slideId != null; slideId = slideId.NextSibling <SlideId>())
{
slideId.Id = ++id;
}
return(new OpenXmlSlide(this, slidePart));
}
