refactor: handler error instead of panic,

Exported functions:

SetCellStyle
InsertCol
RemoveCol
RemoveRow
InsertRow
DuplicateRow
DuplicateRowTo
SetRowHeight
GetRowHeight
GetCellValue
GetCellFormula
GetCellHyperLink
SetCellHyperLink
SetCellInt
SetCellBool
SetCellFloat
SetCellStr
SetCellDefault
GetCellStyle
SetCellValue
MergeCell
SetSheetRow
SetRowVisible
GetRowVisible
SetRowOutlineLevel
GetRowOutlineLevel
GetRows
Columns
SearchSheet
AddTable
GetPicture
AutoFilter
GetColVisible
SetColVisible
GetColOutlineLevel
SetColOutlineLevel
SetColWidth
GetColWidth

inner functions:

adjustHelper
adjustMergeCells
adjustAutoFilter
prepareCell
setDefaultTimeStyle
timeToExcelTime
addDrawingChart
addDrawingVML
addDrawingPicture
getTotalRowsCols
checkRow
addDrawingShape
addTable

1 files changed, 21 insertions, 14 deletions

diff --git a/adjust.go b/adjust.go
index e69eee1..009860b 100644
--- a/adjust.go
+++ b/adjust.go
@@ -30,7 +30,7 @@ const (
 // TODO: adjustCalcChain, adjustPageBreaks, adjustComments,
 // adjustDataValidations, adjustProtectedCells
 //
-func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int) {
+func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int) error {
 	xlsx := f.workSheetReader(sheet)
 
 	if dir == rows {
@@ -39,11 +39,16 @@ func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int)
 		f.adjustColDimensions(xlsx, num, offset)
 	}
 	f.adjustHyperlinks(xlsx, sheet, dir, num, offset)
-	f.adjustMergeCells(xlsx, dir, num, offset)
-	f.adjustAutoFilter(xlsx, dir, num, offset)
+	if err := f.adjustMergeCells(xlsx, dir, num, offset); err != nil {
+		return err
+	}
+	if err := f.adjustAutoFilter(xlsx, dir, num, offset); err != nil {
+		return err
+	}
 
 	checkSheet(xlsx)
 	checkRow(xlsx)
+	return nil
 }
 
 // adjustColDimensions provides a function to update column dimensions when
@@ -127,9 +132,9 @@ func (f *File) adjustHyperlinks(xlsx *xlsxWorksheet, sheet string, dir adjustDir
 
 // adjustAutoFilter provides a function to update the auto filter when
 // inserting or deleting rows or columns.
-func (f *File) adjustAutoFilter(xlsx *xlsxWorksheet, dir adjustDirection, num, offset int) {
+func (f *File) adjustAutoFilter(xlsx *xlsxWorksheet, dir adjustDirection, num, offset int) error {
 	if xlsx.AutoFilter == nil {
-		return
+		return nil
 	}
 
 	rng := strings.Split(xlsx.AutoFilter.Ref, ":")
@@ -138,12 +143,12 @@ func (f *File) adjustAutoFilter(xlsx *xlsxWorksheet, dir adjustDirection, num, o
 
 	firstCol, firstRow, err := CellNameToCoordinates(firstCell)
 	if err != nil {
-		panic(err)
+		return err
 	}
 
 	lastCol, lastRow, err := CellNameToCoordinates(lastCell)
 	if err != nil {
-		panic(err)
+		return err
 	}
 
 	if (dir == rows && firstRow == num && offset < 0) || (dir == columns && firstCol == num && lastCol == num) {
@@ -154,7 +159,7 @@ func (f *File) adjustAutoFilter(xlsx *xlsxWorksheet, dir adjustDirection, num, o
 				rowData.Hidden = false
 			}
 		}
-		return
+		return nil
 	}
 
 	if dir == rows {
@@ -171,13 +176,14 @@ func (f *File) adjustAutoFilter(xlsx *xlsxWorksheet, dir adjustDirection, num, o
 	}
 
 	xlsx.AutoFilter.Ref = firstCell + ":" + lastCell
+	return nil
 }
 
 // adjustMergeCells provides a function to update merged cells when inserting
 // or deleting rows or columns.
-func (f *File) adjustMergeCells(xlsx *xlsxWorksheet, dir adjustDirection, num, offset int) {
+func (f *File) adjustMergeCells(xlsx *xlsxWorksheet, dir adjustDirection, num, offset int) error {
 	if xlsx.MergeCells == nil {
-		return
+		return nil
 	}
 
 	for i, areaData := range xlsx.MergeCells.Cells {
@@ -187,12 +193,12 @@ func (f *File) adjustMergeCells(xlsx *xlsxWorksheet, dir adjustDirection, num, o
 
 		firstCol, firstRow, err := CellNameToCoordinates(firstCell)
 		if err != nil {
-			panic(err)
+			return err
 		}
 
 		lastCol, lastRow, err := CellNameToCoordinates(lastCell)
 		if err != nil {
-			panic(err)
+			return err
 		}
 
 		adjust := func(v int) int {
@@ -224,13 +230,14 @@ func (f *File) adjustMergeCells(xlsx *xlsxWorksheet, dir adjustDirection, num, o
 		}
 
 		if firstCell, err = CoordinatesToCellName(firstCol, firstRow); err != nil {
-			panic(err)
+			return err
 		}
 
 		if lastCell, err = CoordinatesToCellName(lastCol, lastRow); err != nil {
-			panic(err)
+			return err
 		}
 
 		areaData.Ref = firstCell + ":" + lastCell
 	}
+	return nil
 }