private void Window_Drop(object sender, DragEventArgs e)
{
//get file draged to window
string[] fileList = e.Data.GetData(DataFormats.FileDrop) as string[];
if (fileList.Length == 1) //accept only one file
{
//display image file in input
string file = fileList[0];
System.Drawing.Image im = null;
try
{
im = System.Drawing.Image.FromFile(file);
}
catch
{ }
if (im != null) //if valid image
{
//clear images from controls
picInput.Source = null;
picOutput.Source = null;
//set images
currInputImage = im;
currOutputImage = null;
//set current images
picInput.Source = ImageEncoder.ToBitmapImage(im); //set it as input image
picOutput.Source = new BitmapImage(noOutputImageUri); //set to no image picture
}
else //invalid image
{
//clear images
picInput.Source = null;
picOutput.Source = null;
//set images
currInputImage = null;
currOutputImage = null;
//set current images
picInput.Source = new BitmapImage(noInputImageUri); //set to no image picture
picOutput.Source = new BitmapImage(noOutputImageUri); //set to no image picture
}
}
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
if (currInputImage == null) //no image selected
{
MessageBox.Show("Select the image first!", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
this.Cursor = Cursors.Wait; //change cursor
currOutputImage = null; //clear output image
client.Connect(); //connect to server
//check if connection is active
if (client.IsConnected == true)
{
//create xml message
string message = CreateXMLMessage();
if (message == string.Empty)
{
return;
}
//send message to server and get server response
string returnImageBase64 = client.SendMessageAndReceive(message);
System.Drawing.Image imgRet = ImageEncoder.Base64ToImage(returnImageBase64);
if (imgRet != null)
{
picOutput.Source = ImageEncoder.ToBitmapImage(imgRet);
currOutputImage = imgRet;
}
client.Disconnect(); //close server connection
this.Cursor = Cursors.Arrow; //change cursor
}
else
{
this.Cursor = Cursors.Arrow; //change cursor
//alert user
MessageBox.Show("Unable to connect to image server!", "Erorr", MessageBoxButton.OK, MessageBoxImage.Error);
}
}