/// <summary>
/// Adds image watermark into source file, saves resulted file to out file.
/// </summary>
/// <param name="sourceFile">Source slides file to proceed.</param>
/// <param name="outFile">Output slides file.</param>
/// <param name="options">Watermark options.</param>
public void AddImageWatermark(
string sourceFile,
string outFile,
ImageWatermarkOptionsModel options
)
{
using (var presentation = new Presentation(sourceFile))
{
var size = presentation.SlideSize.Size;
var img = ResizeImage(
new Bitmap(options.ImageFile),
options.ZoomPercent / 100.0
) as Image;
if (options.IsGrayScaled)
{
img = ToolStripRenderer.CreateDisabledImage(img);
}
var imgx = presentation.Images.AddImage(img);
var height = imgx.Height;
var width = imgx.Width;
var centerW = (size.Width - width) / 2;
var centerH = (size.Height - height) / 2;
foreach (var slide in presentation.Slides)
{
IPictureFrame pf = slide.Shapes.AddPictureFrame(
ShapeType.Rectangle,
centerW, centerH,
imgx.Width, imgx.Height,
imgx
);
pf.Name = "WaterMark";
pf.LineFormat.FillFormat.FillType = FillType.NoFill;
pf.Rotation = options.RotationAngleDegrees;
}
presentation.Save(outFile, GetFormatFromSource(sourceFile));
}
}
protected void ProcessImageWatermarkButton_Click(object sender, EventArgs e)
{
if (IsValid)
{
if (CheckFileInputs(UploadImageInput))
{
try
{
var files = UploadFiles(FolderNameHidden.Value, UploadImageInput);
if (files != null && files.Count == 1)
{
ImageWatermarkOptionsModel imageWatermarkOptionsModel = new ImageWatermarkOptionsModel();
imageWatermarkOptionsModel.id = FolderNameHidden.Value;
imageWatermarkOptionsModel.FileName = files[0].FileName;
imageWatermarkOptionsModel.idMain = FolderNameHidden.Value;
imageWatermarkOptionsModel.MainFileName = FileNameHidden.Value;
imageWatermarkOptionsModel.IsGrayScaled = greyScale.Checked;
imageWatermarkOptionsModel.ZoomPercent = int.Parse(zoom.Text);
imageWatermarkOptionsModel.RotationAngleDegrees = int.Parse(imageAngle.Text);
//var response = asposeSlides.AddImageWatermark(FileNameHidden.Value, FolderNameHidden.Value, files[0].FileName, files[0].FolderId, greyScale.Checked, double.Parse(zoom.Text), double.Parse(imageAngle.Text));
var response = asposeSlides.AddImageWatermark(imageWatermarkOptionsModel);
SuccessLabel.InnerText = Resources["WatermarkAddedSuccessMessage"];
PerformResponse(response, ImageMessage, ShowDownloadPage);
}
}
catch (Exception ex)
{
ShowErrorMessage(ImageMessage, "Error: " + ex.Message);
}
}
else
{
ShowErrorMessage(ImageMessage, Resources["FileSelectMessage"]);
}
}
}
