private static GroupDocs.Viewer.Domain.WatermarkPosition? ToWatermarkPosition(WatermarkPosition? watermarkPosition)
{
if (!watermarkPosition.HasValue)
return GroupDocs.Viewer.Domain.WatermarkPosition.Diagonal;
switch (watermarkPosition.Value)
{
case WatermarkPosition.Diagonal:
return GroupDocs.Viewer.Domain.WatermarkPosition.Diagonal;
case WatermarkPosition.TopLeft:
return GroupDocs.Viewer.Domain.WatermarkPosition.TopLeft;
case WatermarkPosition.TopCenter:
return GroupDocs.Viewer.Domain.WatermarkPosition.TopCenter;
case WatermarkPosition.TopRight:
return GroupDocs.Viewer.Domain.WatermarkPosition.TopRight;
case WatermarkPosition.BottomLeft:
return GroupDocs.Viewer.Domain.WatermarkPosition.BottomLeft;
case WatermarkPosition.BottomCenter:
return GroupDocs.Viewer.Domain.WatermarkPosition.BottomCenter;
case WatermarkPosition.BottomRight:
return GroupDocs.Viewer.Domain.WatermarkPosition.BottomRight;
default:
throw new ArgumentOutOfRangeException();
}
}
public string GetFileUrl(string path, bool getPdf, bool isPrintable, string fileDisplayName = null,
string watermarkText = null, int? watermarkColor = null,
WatermarkPosition? watermarkPosition = WatermarkPosition.Diagonal, float? watermarkWidth = 0,
bool ignoreDocumentAbsence = false,
bool useHtmlBasedEngine = false,
bool supportPageRotation = false)
{
var queryString = HttpUtility.ParseQueryString(string.Empty);
queryString["path"] = path;
if (!isPrintable)
{
queryString["getPdf"] = getPdf.ToString().ToLower();
if (fileDisplayName != null)
queryString["displayName"] = fileDisplayName;
}
if (watermarkText != null)
{
queryString["watermarkText"] = watermarkText;
queryString["watermarkColor"] = watermarkColor.ToString();
if (watermarkPosition.HasValue)
queryString["watermarkPosition"] = watermarkPosition.ToString();
if (watermarkWidth.HasValue)
queryString["watermarkWidth"] = ((float)watermarkWidth).ToString(CultureInfo.InvariantCulture);
}
if (ignoreDocumentAbsence)
queryString["ignoreDocumentAbsence"] = ignoreDocumentAbsence.ToString().ToLower();
queryString["useHtmlBasedEngine"] = useHtmlBasedEngine.ToString().ToLower();
queryString["supportPageRotation"] = supportPageRotation.ToString().ToLower();
var handlerName = isPrintable ? "GetPdfWithPrintDialog" : "GetFile";
var baseUrl = Request.Url.Scheme + "://" + Request.Url.Authority + Request.ApplicationPath.TrimEnd('/') + "/document-viewer/";
var fileUrl = string.Format("{0}{1}?{2}", baseUrl, handlerName, queryString);
return fileUrl;
}
public static Watermark GetWatermark(string watermarkText, int? watermarkColor, WatermarkPosition? watermarkPosition, float? watermarkWidth)
{
if (string.IsNullOrWhiteSpace(watermarkText))
return null;
return new Watermark(watermarkText)
{
Color = watermarkColor.HasValue
? Color.FromArgb(watermarkColor.Value)
: Color.Red,
Position = ToWatermarkPosition(watermarkPosition),
Width = watermarkWidth
};
}
