Resolve #274, performance optimization for add images, charts and shapes

1 files changed, 4 insertions, 0 deletions

diff --git a/file.go b/file.go
index b6bf57d..8d68851 100644
--- a/file.go
+++ b/file.go
@@ -42,6 +42,8 @@ func NewFile() *File {
 	f.CalcChain = f.calcChainReader()
 	f.Comments = make(map[string]*xlsxComments)
 	f.ContentTypes = f.contentTypesReader()
+	f.DrawingRels = make(map[string]*xlsxWorkbookRels)
+	f.Drawings = make(map[string]*xlsxWsDr)
 	f.Styles = f.stylesReader()
 	f.DecodeVMLDrawing = make(map[string]*decodeVmlDrawing)
 	f.VMLDrawing = make(map[string]*vmlDrawing)
@@ -94,6 +96,8 @@ func (f *File) WriteToBuffer() (*bytes.Buffer, error) {
 	f.calcChainWriter()
 	f.commentsWriter()
 	f.contentTypesWriter()
+	f.drawingRelsWriter()
+	f.drawingsWriter()
 	f.vmlDrawingWriter()
 	f.workbookWriter()
 	f.workbookRelsWriter()