} // ctor
#endregion
#region -- Load, Close --------------------------------------------------------
private async Task OpenPdfAsync(object data)
{
switch (data)
{
case string fileName: // open a file from disk
using (var bar = this.DisableUI(String.Format("Lade Pdf-Datei ({0})...", fileName)))
SetLoadedDocument(await LoadDocumentFromFileNameAsync(fileName)); // parse pdf in background
break;
case IPpsDataInfo info: // open a internal object
using (var bar = this.DisableUI(String.Format("Lade Pdf-Dokument ({0})...", info.Name)))
{
dataInfo = info;
// create access
dataAccess = await info.LoadAsync();
dataAccess.DisableUI = () => this.DisableUI("Pdf-Dokument wird bearbeitet...");
dataAccess.DataChanged += async(sender, e) => await LoadDocumentFromObjectAsync();
await LoadDocumentFromObjectAsync();
}
break;
case null:
throw new ArgumentNullException(nameof(data));
default:
throw new ArgumentException($"Invalid pdf-data container {data.GetType().Name}.", nameof(data));
}
} // proc OpenPdfAsync
} // proc Dispose
/// <summary></summary>
/// <param name="windowPane"></param>
/// <returns></returns>
public async Task LoadAsync(IPpsWindowPane windowPane)
{
using (var bar = windowPane.DisableUI(String.Format("Lade Dokument ({0})...", dataInfo.Name)))
{
// create access
dataAccess = await dataInfo.LoadAsync();
dataAccess.DisableUI = () => windowPane.DisableUI("Pdf-Dokument wird bearbeitet...");
dataAccess.DataChanged += async(sender, e) => await LoadFromObjectAsync();
await LoadFromObjectAsync();
}
} // func LoadAsync
} // proc SetLoadedDocument
private bool ClosePdf()
{
// clear document
pdfViewer.Document = null;
// close pdf
loadedDocument?.Dispose();
// close object access
if (dataAccess != null)
{
dataAccess.Dispose();
dataAccess = null;
}
dataInfo = null;
return(true);
} // func ClosePdf
} // ctor
/// <summary></summary>
public void Dispose()
{
dataAccess?.Dispose();
dataAccess = null;
} // proc Dispose
