private void Scan(object sender, RoutedEventArgs e)
{
try
{
AppBarButton button = sender as AppBarButton;
// hmmm, reusing the device doesn't work because it somehow resets itself to capture higher resolution images.
bool hasDevice = false; // device != null;
GetScannerAsync(new Action(() =>
{
WIA.ImageFile imageFile = null;
if (!hasDevice)
{
imageFile = globalDialog.ShowAcquireImage(DeviceType: WIA.WiaDeviceType.ScannerDeviceType,
Bias: WIA.WiaImageBias.MinimizeSize, Intent: WIA.WiaImageIntent.TextIntent, AlwaysSelectDevice: false);
}
else
{
WIA.Item scannerItem = device.Items[1];
const string wiaFormatPNG = "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}";
object scanResult = globalDialog.ShowTransfer(scannerItem, wiaFormatPNG, false);
imageFile = (WIA.ImageFile)scanResult;
}
if (imageFile != null)
{
string temp = System.IO.Path.GetTempFileName();
if (File.Exists(temp))
{
File.Delete(temp);
}
imageFile.SaveFile(temp);
TempFilesManager.AddTempFile(temp);
AttachmentDialogImageItem image = new AttachmentDialogImageItem(temp);
AddItem(image);
LayoutContent();
SelectItem(image);
AutoCrop(image);
}
}));
}
catch (Exception ex)
{
device = null;
string message = GetWiaErrorMessage(ex);
MessageBox.Show(this, message, "Scan Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public void MoveAttachments(Transaction fromTransaction, Transaction toTransaction)
{
foreach (string fileName in GetAttachments(fromTransaction))
{
toTransaction.HasAttachment = true;
string newFileName = GetUniqueFileName(toTransaction, Path.GetExtension(fileName));
try
{
File.Move(fileName, newFileName);
}
catch
{
// perhaps the old file is locked?
File.Copy(fileName, newFileName);
// delete it later.
TempFilesManager.AddTempFile(fileName);
}
TempFilesManager.RemoveTempFile(newFileName);
}
fromTransaction.HasAttachment = false;
}
internal void Export()
{
if (this.Series != null && this.Series.Count > 0)
{
string name = System.IO.Path.GetTempFileName() + ".csv";
TempFilesManager.AddTempFile(name);
using (StreamWriter writer = new StreamWriter(name))
{
writer.Write("Label");
foreach (var series in this.Series)
{
writer.Write(", {0}", series.Name);
}
writer.WriteLine();
int columns = this.Series[0].Values.Count;
for (int i = 0; i < columns; i++)
{
for (int j = 0, n = this.Series.Count; j < n; j++)
{
var s = this.Series[j];
var item = s.Values[i];
if (j == 0)
{
writer.Write("{0}, ", item.Label);
}
else
{
writer.Write(", ");
}
writer.Write("{0}", item.Value);
}
writer.WriteLine();
}
}
NativeMethods.ShellExecute(IntPtr.Zero, "Open", name, "", "", NativeMethods.SW_SHOWNORMAL);
}
}
private void Paste(object sender, ExecutedRoutedEventArgs e)
{
AttachmentDialogItem newItem = null;
if (Clipboard.ContainsImage())
{
var image = Clipboard.GetImage();
if (image != null)
{
// for some reason this bitmap doesn't paint unless I save and reload it
// the in-memory copy from the clipboard is a bit touchy, probably comes from
// another process and so on, so persistence is better strategy here...
string path = Path.GetTempFileName();
AttachmentDialogImageItem item = new AttachmentDialogImageItem(image);
item.Save(path);
TempFilesManager.AddTempFile(path);
newItem = new AttachmentDialogImageItem(path);
}
}
else if (Clipboard.ContainsData(DataFormats.XamlPackage) ||
Clipboard.ContainsData(DataFormats.Rtf) ||
Clipboard.ContainsData(DataFormats.Text))
{
newItem = new AttachmentDialogDocumentItem(Clipboard.GetDataObject());
}
if (newItem != null)
{
AddItem(newItem);
LayoutContent();
SelectItem(newItem);
SetDirty();
}
}