From 576c6d6b78dcde34a41deb2b01e77ad6a9d8e674 Mon Sep 17 00:00:00 2001
From: Sergey Tihon <sergey.tihon@gmail.com>
Date: Thu, 7 Oct 2021 21:12:54 +0200
Subject: [PATCH] fix copy Chart Style Parts in FluentPresentationBuilder

---
 Clippit.sln                                   |  2 +-
 .../PowerPoint/PresentationBuilderTools.cs    | 29 ++++++++++++++++++-
 RELEASE_NOTES.md                              |  3 ++
 3 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/Clippit.sln b/Clippit.sln
index c535e8c2..9a471497 100644
--- a/Clippit.sln
+++ b/Clippit.sln
@@ -13,7 +13,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.gitignore = .gitignore
 		paket.dependencies = paket.dependencies
 		README.md = README.md
-		docs\RELEASE_NOTES.md = docs\RELEASE_NOTES.md
+		RELEASE_NOTES.md = RELEASE_NOTES.md
 	EndProjectSection
 EndProject
 Global
diff --git a/OpenXmlPowerTools/PowerPoint/PresentationBuilderTools.cs b/OpenXmlPowerTools/PowerPoint/PresentationBuilderTools.cs
index c8498f8b..401fb11a 100644
--- a/OpenXmlPowerTools/PowerPoint/PresentationBuilderTools.cs
+++ b/OpenXmlPowerTools/PowerPoint/PresentationBuilderTools.cs
@@ -149,14 +149,41 @@ internal static void CopyChartObjects(ChartPart oldChart, ChartPart newChart)
                 else
                 {
                     //ExternalRelationship oldRelationship = oldChart.GetExternalRelationship(relId);
-                    var newRid = NewRelationshipId();
                     var oldRel = oldChart.ExternalRelationships.FirstOrDefault(h => h.Id == relId);
                     if (oldRel is null)
                         throw new PresentationBuilderInternalException("Internal Error 0007");
+                    
+                    var newRid = NewRelationshipId();
                     newChart.AddExternalRelationship(oldRel.RelationshipType, oldRel.Uri, newRid);
                     dataReference.Attribute(R.id).Set(newRid);
                 }
             }
+
+            foreach (var idPartPair in oldChart.Parts)
+            {
+                switch (idPartPair.OpenXmlPart)
+                {
+                    case ThemeOverridePart oldThemeOverridePart:
+                        CopyPart(oldThemeOverridePart);
+                        break;
+                    case ChartColorStylePart oldChartColorStylePart:
+                        CopyPart(oldChartColorStylePart);
+                        break;
+                    case ChartStylePart oldChartColorStylePart:
+                        CopyPart(oldChartColorStylePart);
+                        break;
+                }
+            }
+
+            void CopyPart<T>(T oldPart) where T : OpenXmlPart
+            {
+                var newRid = NewRelationshipId();
+                var newPart = newChart.AddNewPart<T>(oldPart.ContentType, newRid);
+                
+                using var oldStream = oldPart.GetStream(FileMode.Open, FileAccess.Read);
+                using var newStream = newPart.GetStream(FileMode.Create, FileAccess.ReadWrite);
+                oldStream.CopyTo(newStream);
+            }
         }
 
         private static void UpdateContent(IEnumerable<XElement> newContent, XName elementToModify, string oldRid, string newRid)
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 691223ba..d65a7985 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,6 @@
+#### 1.7.3 - Oct 7, 2021
+- Fixed copy Chart Style Parts in FluentPresentationBuilder
+
 #### 1.7.2 - Aug 23, 2021
 - DocumentFormat.OpenXml v2.13.1