private void buttonSplit_Click(object sender, RoutedEventArgs e)
{
SplitPdfArgs args = new SplitPdfArgs();
args.InputFilename = this.textBoxInput.Text;
args.OutputFilename = this.textBoxOutput.Text;
args.FromPage = this.textBoxFrom.Text;
args.ToPage = this.textBoxTo.Text;
args.NumOfPages = this.textBoxNumOfPages.Text;
args.Pages = this.radioButtonPages.IsChecked.Value;
if (args.InputFilename.Length > 0 && args.OutputFilename.Length > 0 &&
((this.radioButtonPages.IsChecked.Value && args.FromPage.Length > 0) ||
(this.radioButtonFiles.IsChecked.Value && args.NumOfPages.Length > 0)))
{
Regex regexNums = new Regex(@"^\d+$");
if ((this.radioButtonPages.IsChecked.Value && regexNums.IsMatch(args.FromPage) &&
(args.ToPage.Length > 0 ? regexNums.IsMatch(args.ToPage) : true)) ||
(this.radioButtonFiles.IsChecked.Value && regexNums.IsMatch(args.NumOfPages)))
{
this.args = args;
this.DialogResult = true;
}
else
{
MessageBox.Show(this, "Input invalid.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
else
{
MessageBox.Show(this, "Input incomplete.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void backgroundWorkerSplitPdf_DoWork(object sender, DoWorkEventArgs e)
{
SplitPdfArgs args = (SplitPdfArgs)e.Argument;
if (args.Pages)
{
PdfUtilities.SplitPdf(args.InputFilename, args.OutputFilename, args.FromPage, args.ToPage);
}
else
{
string outputFilename = String.Empty;
if (args.OutputFilename.EndsWith(".pdf"))
{
outputFilename = args.OutputFilename.Substring(0, args.OutputFilename.LastIndexOf(".pdf"));
}
int pageCount = PdfUtilities.GetPdfPageCount(args.InputFilename);
if (pageCount == 0)
{
throw new ApplicationException("Split PDF failed.");
}
int pageRange = Int32.Parse(args.NumOfPages);
int startPage = 1;
while (startPage <= pageCount)
{
int endPage = startPage + pageRange - 1;
string outputFile = outputFilename + startPage + ".pdf";
PdfUtilities.SplitPdf(args.InputFilename, outputFile, startPage.ToString(), endPage.ToString());
startPage = endPage + 1;
}
}
e.Result = args.OutputFilename;
}