/// <summary>
/// Clones this cell cursor, but with a specified worksheet.
/// </summary>
/// <param name="worksheet">The worksheet.</param>
/// <returns>
/// A clone of this cell cursor, except with the worksheet swapped-out for the specified worksheet.
/// </returns>
/// <exception cref="ArgumentNullException"><paramref name="worksheet"/> is null.</exception>
public CellCursor CloneWithWorksheet(
Worksheet worksheet)
{
if (worksheet == null)
{
throw new ArgumentNullException(nameof(worksheet));
}
var result = new CellCursor(worksheet)
{
RowNumber = this.RowNumber,
ColumnNumber = this.ColumnNumber,
StartRowNumber = this.StartRowNumber,
StartColumnNumber = this.StartColumnNumber,
MaxRowNumber = this.MaxRowNumber,
MaxColumnNumber = this.MaxColumnNumber,
markerNameToCellsMap = this.markerNameToCellsMap.ToDictionary(
_ => _.Key,
_ => _.Value.Select(cell => worksheet.Cells[cell.Row, cell.Column]).ToList()),
};
return(result);
}
public static Range InsertImages(
this Cell cell,
IReadOnlyCollection <string> imageUrls,
int imageWidthScale = 100,
int imageHeightScale = 100,
ImagesRelativeOrientation relativeOrientation = ImagesRelativeOrientation.Horizontal,
ImagesCellSizeChanges cellSizeChanges = ImagesCellSizeChanges.ExpandRowAndColumnToFitImages,
int rowHeightInPixels = Constants.DefaultRowHeightInPixels,
int columnWidthInPixels = Constants.DefaultColumnWidthInPixels,
ImagesAutoLayoutProcedures autoLayoutProcedures = ImagesAutoLayoutProcedures.AutoSpaceAndAutoAlign)
{
if (cell == null)
{
throw new ArgumentNullException(nameof(cell));
}
if (imageUrls == null)
{
throw new ArgumentNullException(nameof(imageUrls));
}
if (!imageUrls.Any())
{
throw new ArgumentException(Invariant($"'{nameof(imageUrls)}' is an empty enumerable"));
}
if (imageUrls.Any(string.IsNullOrWhiteSpace))
{
throw new ArgumentException(Invariant($"{nameof(imageUrls)} contains an element that is null or white space"));
}
if (imageWidthScale < 1)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(imageWidthScale)}' < '{1}'"), (Exception)null);
}
if (imageWidthScale > 500)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(imageWidthScale)}' > '{500}'"), (Exception)null);
}
if (imageHeightScale < 1)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(imageHeightScale)}' < '{1}'"), (Exception)null);
}
if (imageHeightScale > 500)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(imageHeightScale)}' > '{500}'"), (Exception)null);
}
if (relativeOrientation == ImagesRelativeOrientation.Unknown)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(relativeOrientation)}' == '{ImagesRelativeOrientation.Unknown}'"), (Exception)null);
}
if (rowHeightInPixels < 1)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(rowHeightInPixels)}' < '{1}'"), (Exception)null);
}
if (columnWidthInPixels < 1)
{
throw new ArgumentOutOfRangeException(Invariant($"'{nameof(columnWidthInPixels)}' < '{1}'"), (Exception)null);
}
if (relativeOrientation == ImagesRelativeOrientation.Vertical)
{
throw new NotImplementedException(Invariant($"This {nameof(ImagesRelativeOrientation)} is not yet implemented: {nameof(ImagesRelativeOrientation.Vertical)}"));
}
var worksheet = cell.Worksheet;
var pictures = new List <Picture>();
using (var webClient = new WebClient())
{
foreach (var imageUrl in imageUrls)
{
var imageBytes = webClient.DownloadData(imageUrl);
using (var imageStream = new MemoryStream(imageBytes))
{
var pictureIndex = worksheet.Pictures.Add(cell.Row, cell.Column, imageStream);
var picture = worksheet.Pictures[pictureIndex];
var imageBitmap = new Bitmap(imageStream);
var imageHeightInPixels = imageBitmap.Height;
var imageWidthInPixels = imageBitmap.Width;
picture.Height = imageHeightInPixels;
picture.Width = imageWidthInPixels;
picture.HeightScale = imageHeightScale;
picture.WidthScale = imageWidthScale;
pictures.Add(picture);
}
}
}
var maxImageWidthInPixels = pictures.Max(_ => _.Width);
var maxImageHeightInPixels = pictures.Max(_ => _.Height);
var totalImageWidthInPixels = pictures.Sum(_ => _.Width);
int resultEndRow, resultEndColumn;
var resultStartRow = resultEndRow = cell.GetRowNumber();
var resultStartColumn = resultEndColumn = cell.GetColumnNumber();
// setting the row height or column height could move the pictures so do that before positioning the pictures
if (cellSizeChanges.HasFlag(ImagesCellSizeChanges.ExpandRowToFitImages))
{
var rowHeight = cell.GetHeightInPixels();
if (maxImageHeightInPixels > rowHeight)
{
cell.GetRange().SetTotalRowHeightInPixels(maxImageHeightInPixels);
}
}
else
{
var cursor = new CellCursor(worksheet, cell.GetRowNumber(), cell.GetColumnNumber());
var pixelsCovered = 0;
do
{
if (cellSizeChanges.HasFlag(ImagesCellSizeChanges.ResizeRowsToFixedHeight))
{
cursor.CellRange.SetPerRowHeightInPixels(rowHeightInPixels);
}
pixelsCovered += cursor.Cell.GetHeightInPixels(includeMergedCells: false);
cursor.MoveDown();
}while (pixelsCovered < maxImageHeightInPixels);
resultEndRow = cursor.RowNumber - 1;
}
if (cellSizeChanges.HasFlag(ImagesCellSizeChanges.ExpandColumnToFitImages))
{
var columnWidth = cell.GetWidthInPixels();
if (autoLayoutProcedures.HasFlag(ImagesAutoLayoutProcedures.AutoSpace))
{
if (totalImageWidthInPixels > columnWidth)
{
cell.GetRange().SetTotalColumnWidthInPixels(totalImageWidthInPixels);
}
}
else
{
if (maxImageWidthInPixels > columnWidth)
{
cell.GetRange().SetTotalColumnWidthInPixels(maxImageWidthInPixels);
}
}
}
else
{
var cursor = new CellCursor(worksheet, cell.GetRowNumber(), cell.GetColumnNumber());
var pixelsCovered = 0;
do
{
if (cellSizeChanges.HasFlag(ImagesCellSizeChanges.ResizeColumnsToFixedWidth))
{
cursor.CellRange.SetPerColumnWidthInPixels(columnWidthInPixels);
}
pixelsCovered += cursor.Cell.GetWidthInPixels(includeMergedCells: false);
cursor.MoveRight();
}while (pixelsCovered < maxImageWidthInPixels);
resultEndColumn = cursor.ColumnNumber - 1;
}
if (autoLayoutProcedures.HasFlag(ImagesAutoLayoutProcedures.AutoSpace))
{
var horizontalMarginInPixels = (cell.GetWidthInPixels() - totalImageWidthInPixels) / (pictures.Count + 1);
var horizontalPositionInPixels = pictures[0].X;
foreach (var picture in pictures)
{
if (horizontalMarginInPixels >= 0)
{
picture.X = horizontalPositionInPixels + horizontalMarginInPixels;
horizontalPositionInPixels = picture.X + picture.Width;
}
}
}
if (autoLayoutProcedures.HasFlag(ImagesAutoLayoutProcedures.AutoAlign))
{
foreach (var picture in pictures)
{
picture.Y += (maxImageHeightInPixels - picture.Height) / 2;
}
}
var result = worksheet.GetRange(resultStartRow, resultEndRow, resultStartColumn, resultEndColumn);
return(result);
}
