'TODO: Automatically add image to the cell
'Using: insertImage(Destination, Image Path)
Option Explicit

Function insertImage(dest As Range, imgPath As Range) As String
    InsertPicture imgPath, dest, True
    insertImage = ""
End Function

Private Function AutoPicture(rPath As Range)
    Dim ca  As Range
    Application.Volatile
    Set ca = Application.Caller
    AutoPicture = InsertPicture(rPath, Application.Caller, False)
End Function

Private Sub ClearPicture(rrg As Range, isSubCall As Boolean)
    Dim Ws As Worksheet
    Dim pPics As Pictures
    Dim pPic As Picture
    
    On Error Resume Next
    Set Ws = rrg.Worksheet
    
    If isSubCall = True Then
        Set pPics = Ws.Pictures
        For Each pPic In pPics
            If Not (Application.Intersect(rrg, pPic.TopLeftCell) Is Nothing) Then
                If Not (Application.Intersect(rrg, pPic.BottomRightCell) Is Nothing) Then
                    pPic.Delete
                End If
            End If
        Next
    Else
        Dim rIndex As Range
        For Each rIndex In rrg
            Set pPic = Ws.Shapes(rIndex)
            pPic.Delete
        Next
    End If
End Sub

Private Function InsertPicture(rS As Range, rD As Range, Optional isSubCall As Boolean = True)
    Dim lRows As Long
    Dim lCols As Long
    Dim lRow As Long
    Dim lCol As Long
    Dim rrg As Range
    Dim Pic As Shape
    Dim Ws As Worksheet
    
    Set Ws = rD.Worksheet
    lRows = rS.Rows.Count
    lCols = rD.Columns.Count
    
    If rS.Rows.Count <> rD.Rows.Count Or rS.Columns.Count <> rD.Columns.Count Then InsertPicture = CVErr(xlErrNA): Exit Function
    
    On Error Resume Next
    If isSubCall = True Then
        If MsgBox("Do you want to remove the old image in the cell?", vbYesNo) = vbYes Then
            ClearPicture rD, True
        End If
    Else
        ClearPicture rD, False
    End If
    
    Dim vKQ() As Variant
    ReDim vKQ(1 To lRows, 1 To lCols) As Variant
    
    For lRow = 1 To lRows
        For lCol = 1 To lCols
            Set rrg = rD(lRow, lCol)
            Err.Clear
            Set Pic = Ws.Shapes.AddPicture(rS(lRow, lCol), msoFalse, msoTrue, 1, 1, -1, -1)
          
            If Err.Number <> 0 Then
                vKQ(lRow, lCol) = CVErr(xlErrNA)
            Else
                vKQ(lRow, lCol) = Pic.Name
                Pic.Placement = xlMoveAndSize
                ReSizeShape Pic, rrg
            End If
        Next
    Next lRow
    
    InsertPicture = vKQ
End Function

Private Sub ReSizeShape(a As Shape, rrg As Range)
    Dim shr As Single
    Dim swr As Single
    Dim sha As Single
    Dim swa As Single
    Dim sTyLe As Single
    
    a.LockAspectRatio = msoFalse
    a.ScaleHeight 1, msoTrue, msoScaleFromMiddle
    a.ScaleWidth 1, msoTrue, msoScaleFromMiddle
    
    shr = rrg.MergeArea.Height
    swr = rrg.MergeArea.Width
    sha = a.Height
    swa = a.Width
    sTyLe = 10
    
    If (shr / swr) >= (sha / swa) Then
        a.Width = swr * (100 - sTyLe) / 100
        a.Height = (a.Width * sha) / swa
    Else
        a.Height = shr * (100 - sTyLe) / 100
        a.Width = (a.Height * swa) / sha
    End If
    
    a.Left = rrg.Left + (swr - a.Width) / 2
    a.Top = rrg.Top + (shr - a.Height) / 2
    a.LockAspectRatio = msoTrue
End Sub