private void InternalSave(bool bForcePrompt)
{
// Prompt the user for the file to save to if this is the first save, or the re-prompt is requested.
if (bForcePrompt || App.documentSaveStream == null)
{
var dialog = new WinForms.SaveFileDialog();
dialog.Filter = "Personal Genome Explorer files|*.PersonalGenomeData|All files (*.*)|*.*";
if (dialog.ShowDialog() == WinForms.DialogResult.OK)
{
// Close the old save stream.
if (App.documentSaveStream != null)
{
App.documentSaveStream.Close();
}
// Open the file chosen by the user for writing.
App.documentSaveStream = dialog.OpenFile();
}
}
if (App.documentSaveStream != null)
{
// Prompt the user for the password to protect the file with if this is the first save, or the re-prompt is requested.
if (bForcePrompt || App.document.password == "")
{
var passwordWindow = new PasswordWindow();
passwordWindow.Owner = this;
passwordWindow.ShowDialog();
if (passwordWindow.bOkPressed)
{
App.document.password = passwordWindow.password;
}
else
{
// Abort saving if the password prompt was cancelled.
App.document.password = "";
return;
}
}
// Clear the file stream the document was last saved to.
App.documentSaveStream.Seek(0, SeekOrigin.Begin);
App.documentSaveStream.SetLength(0);
// Write the genome to the file.
App.document.Save(App.documentSaveStream);
}
}
private void menuClick_FileOpen(object sender, RoutedEventArgs args)
{
bool bSuccessfullyLoaded = false;
var dialog = new WinForms.OpenFileDialog();
dialog.Filter = "Personal Genome Explorer files|*.PersonalGenomeData|All files (*.*)|*.*";
if (dialog.ShowDialog() == WinForms.DialogResult.OK)
{
// If we had a file stream open for saving the current document, close it now to ensure that it doesn't prevent us from opening the user's new file.
if (App.documentSaveStream != null)
{
App.documentSaveStream.Close();
App.documentSaveStream = null;
}
// Open the chosen file.
using (var fileStream = dialog.OpenFile())
{
int TryIndex = 0;
while (true)
{
// Seek to the beginning of the file.
fileStream.Seek(0, SeekOrigin.Begin);
// Try a blank password before prompting the user.
string password = "";
if (TryIndex > 0)
{
// Prompt the user for the genome file's password.
var passwordWindow = new PasswordWindow();
passwordWindow.Owner = this;
passwordWindow.ShowDialog();
password = passwordWindow.password;
if (!passwordWindow.bOkPressed)
{
// The user cancelled the password dialog, abort the open.
break;
}
}
// Try to load the genome from the chosen file.
GenomeLoadResult result = IndividualGenomeDatabase.Load(fileStream, password, ref App.document);
// If there was an error, display the appropriate dialog.
if (result == GenomeLoadResult.IncorrectPassword)
{
if (TryIndex > 0)
{
// If the user entered the wrong password, give them another chance to enter it.
WinForms.MessageBox.Show("The file cannot be decrypted with that password.", "Incorrect Password");
}
}
else if (result == GenomeLoadResult.UnrecognizedFile)
{
WinForms.MessageBox.Show("The file doesn't appear to be a valid PersonalGenomeData file.", "Unrecognized file");
break;
}
else
{
bSuccessfullyLoaded = true;
break;
}
++TryIndex;
}
;
}
}
if (bSuccessfullyLoaded)
{
// Reanalyze after loading the data.
InitAnalysis();
}
}