public static void SaveScaled(ImageViewModel imageViewModel, string path)
{
string pathToSave = Path.Combine(path, imageViewModel.Name);
using (var fs = new FileStream(pathToSave, FileMode.Create))
{
Save(imageViewModel, fs);
}
if ((int) imageViewModel.Rotation%360 == 0) return;
var img = Image.FromFile(pathToSave);
img.RotateFlip(GetRotationType(imageViewModel.Rotation));
img.Save(pathToSave, System.Drawing.Imaging.ImageFormat.Jpeg);
}
private void CalculateImage(ImageViewModel imageViewModel, ParallelLoopState state, Int64 counter)
{
if (DoRestart) state.Stop();
var messageText = "Calculating Compressed Size" +
new string('.', (int)(counter % 4));
if (Application.Current == null) return;
Application.Current.Dispatcher.Invoke(
DispatcherPriority.Normal,
(Action)(() =>
{
Ui.ProgressValue += 1;
Ui.MessageText = messageText;
}));
lock (_lockObject)
{
_sizeSum += ImageModel.GetFileSizeScaledInMegaByte(imageViewModel);
}
}
public static double GetFileSizeScaledInMegaByte(ImageViewModel imageViewModel)
{
var ms = new MemoryStream();
Save(imageViewModel, ms);
return (double)ms.Length / (1024 * 1024);
}
private static void Save(ImageViewModel imageViewModel, Stream stream)
{
var imageShrinkerViewModel = imageViewModel.Parent;
var original = new Bitmap(imageViewModel.Path);
var factor = 1.0;
if (imageShrinkerViewModel.DesiredWidth < imageViewModel.Width)
factor = imageShrinkerViewModel.DesiredWidth / (double)imageViewModel.Width;
if (imageShrinkerViewModel.DesiredHeight < imageViewModel.Height)
factor = imageShrinkerViewModel.DesiredHeight / (double)imageViewModel.Height;
var scaled = new Bitmap((int)(original.Width * factor), (int)(original.Height * factor));
using (Graphics graphics = Graphics.FromImage(scaled))
{
graphics.DrawImage(original, new Rectangle(0, 0, scaled.Width, scaled.Height));
var encoderParams = new System.Drawing.Imaging.EncoderParameters(1);
encoderParams.Param[0] = new DrawImaging.EncoderParameter(DrawImaging.Encoder.Quality, imageShrinkerViewModel.Quality);
scaled.Save(stream, GetEncoderInfo("image/jpeg"), encoderParams);
}
}
public void RemoveImage(ImageViewModel imageViewModel)
{
imageViewModel.PropertyChanged -= HandleImagePropertyChanged;
_images.Remove(imageViewModel);
ImageDataChangedForCalculation = true;
}
public void AddImage(ImageViewModel imageViewModel)
{
imageViewModel.Parent = this;
imageViewModel.PropertyChanged += HandleImagePropertyChanged;
_images.Add(imageViewModel);
ImageDataChangedForCalculation = true;
}
