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let pdfviewer accepts streams

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This commit is contained in:
Paddy Xu
2018-09-02 13:44:53 +03:00
parent f98022401f
commit e4db93704e
2 changed files with 42 additions and 7 deletions
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37
QuickLook.Plugin/QuickLook.Plugin.PDFViewer/PdfViewerControl.xaml.cs
View File

@@ -249,6 +249,21 @@ namespace QuickLook.Plugin.PDFViewer
listThumbnails.Visibility = Visibility.Collapsed; listThumbnails.Visibility = Visibility.Collapsed;
} }
public void LoadPdf(MemoryStream stream)
{
_pdfStream = new MemoryStream();
stream.WriteTo(_pdfStream);
_pdfStream.Position = 0;
_pdfHandle = PdfDocument.Load(_pdfStream);
_pdfLoaded = true;
BeginLoadThumbnails(stream);
if (_pdfHandle.PageCount < 2)
listThumbnails.Visibility = Visibility.Collapsed;
}
private void BeginLoadThumbnails(string path, string password = null) private void BeginLoadThumbnails(string path, string password = null)
{ {
new Task(() => new Task(() =>
@@ -270,6 +285,28 @@ namespace QuickLook.Plugin.PDFViewer
}).Start(); }).Start();
} }
private void BeginLoadThumbnails(MemoryStream stream, string password = null)
{
var localStream = new MemoryStream();
stream.WriteTo(localStream);
localStream.Position = 0;
new Task(() =>
{
using (var handle = PdfDocument.Load(localStream, password))
{
for (var p = 0; p < handle.PageCount; p++)
{
var bs = handle.RenderThumbnail(p);
Dispatcher.BeginInvoke(new Action(() => PageThumbnails.Add(bs)));
}
handle.Dispose();
}
}).Start();
}
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null) protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{ {
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

10
QuickLook.Plugin/QuickLook.Plugin.PDFViewer/Plugin.cs
View File

@@ -73,9 +73,9 @@ namespace QuickLook.Plugin.PDFViewer
{ {
_pdfControl.LoadPdf(path); _pdfControl.LoadPdf(path);
context.Title = $"{Path.GetFileName(path)} (1 / {_pdfControl.TotalPages})"; context.Title = $"1 / {_pdfControl.TotalPages}: {Path.GetFileName(path)}";
_pdfControl.CurrentPageChanged += UpdateVindowCaption; _pdfControl.CurrentPageChanged += UpdateWindowCaption;
context.IsBusy = false; context.IsBusy = false;
} }
catch (Exception e) catch (Exception e)
@@ -92,17 +92,15 @@ namespace QuickLook.Plugin.PDFViewer
{ {
GC.SuppressFinalize(this); GC.SuppressFinalize(this);
if (_pdfControl != null)
_pdfControl.CurrentPageChanged -= UpdateVindowCaption;
_pdfControl?.Dispose(); _pdfControl?.Dispose();
_pdfControl = null; _pdfControl = null;
_context = null; _context = null;
} }
private void UpdateVindowCaption(object sender, EventArgs e2) private void UpdateWindowCaption(object sender, EventArgs e2)
{ {
_context.Title = $"{Path.GetFileName(_path)} ({_pdfControl.CurrentPage + 1} / {_pdfControl.TotalPages})"; _context.Title = $"{_pdfControl.CurrentPage + 1} / {_pdfControl.TotalPages}: {Path.GetFileName(_path)}";
} }
} }
} }