安格斯殿堂

   1:  using System;

   2:  using System.Collections.Generic;

   3:  using System.Linq;

   4:  using System.Text;

   5:  using System.IO;

   6:  using System.IO.Packaging;

   7:  using DocumentFormat.OpenXml;

   8:  using DocumentFormat.OpenXml.Packaging;

   9:  using DocumentFormat.OpenXml.Presentation;

  10:   

  11:  namespace AssemblePowerPointDecks

  12:  {

  13:      class Program

  14:      {

  15:          //可以透過 ID 來針對兩份投影片的主 ID 及投影片佈景主題 ID 清單

  16:          static uint uniqueId;

  17:   

  18:          static void Main(string[] args)

  19:          {

  20:              string destDeck = "output.pptx";

  21:   

  22:              File.Copy("one.pptx", destDeck, true);

  23:              MergeDecks("Two.pptx", destDeck);

  24:          }

  25:   

  26:          static void MergeDecks(string sourceDeck, string destDeck)

  27:          {

  28:              int id = 1;

  29:              //開啟目標檔案

  30:              using (PresentationDocument myDestDeck = PresentationDocument.Open(destDeck, true))

  31:              {

  32:                  PresentationPart destPresPart = myDestDeck.PresentationPart;

  33:   

  34:                  //開啟來源檔案

  35:                  using (PresentationDocument mySourceDeck = PresentationDocument.Open(sourceDeck, true))

  36:                  {

  37:                      PresentationPart sourcePresPart = mySourceDeck.PresentationPart;

  38:   

  39:                      //需取得投影片(佈景主題)清單中唯一的id以利稍後使用

  40:                      uniqueId = GetMaxIdFromChild(destPresPart.Presentation.SlideMasterIdList);                   

  41:                      uint maxSlideId = GetMaxIdFromChild(destPresPart.Presentation.SlideIdList);

  42:   

  43:                      //複製每一個來源投影片

  44:                      foreach (SlideId slideId in sourcePresPart.Presentation.SlideIdList)

  45:                      {

  46:                          SlidePart sp;

  47:                          SlidePart destSp;

  48:                          SlideMasterPart destMasterPart;

  49:                          string relId;

  50:                          SlideMasterId newSlideMasterId;

  51:                          SlideId newSlideId;

  52:   

  53:                          //準備唯一關連的ID值

  54:                          id++;

  55:                          sp = (SlidePart)sourcePresPart.GetPartById(slideId.RelationshipId);                        

  56:                          relId = sourceDeck.Remove(sourceDeck.IndexOf('.')) + id;                       

  57:                          destSp = destPresPart.AddPart<SlidePart>(sp, relId);

  58:   

  59:                          //Master part was added, but now we need to make sure the relationship is in place

  60:                          destMasterPart = destSp.SlideLayoutPart.SlideMasterPart;                        

  61:                          destPresPart.AddPart(destMasterPart);

  62:   

  63:                          //新增投影片母片至投影片母片清單中

  64:                          uniqueId++;

  65:                          newSlideMasterId = new SlideMasterId();

  66:                          newSlideMasterId.RelationshipId = destPresPart.GetIdOfPart(destMasterPart);                        

  67:                          newSlideMasterId.Id = uniqueId;

  68:   

  69:                          //新增投影片至投影片清單中

  70:                          maxSlideId++;

  71:                          newSlideId = new SlideId();

  72:                          newSlideId.RelationshipId = relId;                        

  73:                          newSlideId.Id = maxSlideId;

  74:   

  75:                          destPresPart.Presentation.SlideMasterIdList.Append(newSlideMasterId);

  76:                          destPresPart.Presentation.SlideIdList.Append(newSlideId);

  77:                      }

  78:                      //確定所有投影片的 id 皆是唯一值

  79:                      FixSlideLayoutIds(destPresPart);

  80:                  }

  81:                  destPresPart.Presentation.Save();

  82:              }

  83:          }

  84:   

  85:          static void FixSlideLayoutIds(PresentationPart presPart)

  86:          {

  87:              //確定所有投影片佈景主題是有唯一 id

  88:              foreach (SlideMasterPart slideMasterPart in presPart.SlideMasterParts)

  89:              {

  90:                  foreach (SlideLayoutId slideLayoutId in slideMasterPart.SlideMaster.SlideLayoutIdList)

  91:                  {

  92:                      uniqueId++;

  93:                      slideLayoutId.Id = (uint)uniqueId;

  94:                  }

  95:                  slideMasterPart.SlideMaster.Save();

  96:              }

  97:          }

  98:   

  99:          static uint GetMaxIdFromChild(OpenXmlElement el)

 100:          {

 101:              uint max = 1;

 102:              //從設立的子群中取得最大ID值

 103:              foreach (OpenXmlElement child in el.ChildElements)

 104:              {

 105:                  OpenXmlAttribute attribute = child.GetAttribute("id", "");

 106:   

 107:                  uint id = uint.Parse(attribute.Value);

 108:   

 109:                  if (id > max)

 110:                      max = id;

 111:              }

 112:              return max;

 113:          }

 114:      }

 115:  }