public async Task Decrypt(string filename, int seed, int bits)
{
await WaitDialogHelper.ExecuteThreadAsync("Decrypt Image",
() => DecryptText = Interface.Decrypt((BitmapImage)ImageSource, ChannelUsage.Default, seed), exception =>
{
if (exception != null)
{
ErrorHelper.Add(3, exception.Message, exception.StackTrace);
}
});
}
/// <summary>
/// Encrypts a text to a picture and saves it
/// </summary>
/// <param name="openFilePath">Path from were the picture gets loaded</param>
/// <param name="encryptText">The text which gets hidden in the picture</param>
/// <param name="seed"></param>
/// <param name="bits"></param>
public async Task Encrypt(string openFilePath, string encryptText, int seed, int bits)
{
await WaitDialogHelper.ExecuteThreadAsync("Encrypt Message", () =>
{
string saveFilePath = RuntimeGlobals.ShowSaveFileDialog("PNG Image (*.png)|*.png", RuntimeGlobals.Settings.SavePath);
if (string.IsNullOrEmpty(saveFilePath))
{
return;
}
if (!InputOutput.CheckPathIsValidImage(saveFilePath))
{
throw new FileFormatException();
}
if (saveFilePath.Equals(openFilePath))
{
throw new FileLoadException();
}
var image = Interface.Encrypt((BitmapImage)ImageSource, ChannelUsage.Default, seed, encryptText);
InputOutput.SaveImageToFile(saveFilePath, image);
GC.Collect();
}, exception =>
{
if (exception != null)
{
if (exception is OutOfMemoryException)
{
ErrorHelper.Add(6, exception.Message, exception.StackTrace);
}
else if (exception is FileFormatException)
{
ErrorHelper.Add(4);
}
else if (exception is FileLoadException)
{
ErrorHelper.Add(5);
}
else
{
ErrorHelper.Add(3, exception.GetType() + "\n" + exception.Message, exception.StackTrace);
}
}
});
}