private void PageChanged(int pageIndex)
{
this.pageIndex = pageIndex;
switch (pageIndex)
{
case 0:
colorModelsView = new ColorModelsView(CloseFrame);
colorModelsViewModel = new ColorModelsViewModel();
MainFrame.DataContext = colorModelsViewModel;
MainFrame.Content = colorModelsView;
break;
case 1:
fractalsView = new FractalsView(CloseFrame);
fractalsViewModel = new FractalsDataViewModel(400, 400);
MainFrame.DataContext = fractalsViewModel;
fractalsView.FractalPower3Radio.Checked += FractalPowerChanged;
fractalsView.FractalPower4Radio.Checked += FractalPowerChanged;
MainFrame.Content = fractalsView;
break;
case 2:
transformationsView = new TransformationView(CloseFrame);
transformationsViewModel = new TransformationsViewModel(transformationsView.HandleAnimationEnd);
MainFrame.DataContext = transformationsViewModel;
transformationsView.CenterTransformRadio.Checked += TransformRadioChanged;
transformationsView.VertexTransformRadio.Checked += TransformRadioChanged;
MainFrame.Content = transformationsView;
break;
}
}
private void StartButton_Click(object sender, RoutedEventArgs e)
{
TransformationsViewModel viewModel = (TransformationsViewModel)DataContext;
if (Validation.GetHasError(InputSideLength))
{
InputSideLength.Text = viewModel.SideLength.ToString();
ErrorWindow error = new ErrorWindow(badSymbolsError);
error.ShowDialog();
}
if (Validation.GetHasError(InputX))
{
InputX.Text = viewModel.CoordX.ToString();
ErrorWindow error = new ErrorWindow(badSymbolsError);
error.ShowDialog();
}
if (Validation.GetHasError(InputY))
{
InputY.Text = viewModel.CoordY.ToString();
ErrorWindow error = new ErrorWindow(badSymbolsError);
error.ShowDialog();
}
if (Validation.GetHasError(InputMaxRotation))
{
InputMaxRotation.Text = viewModel.MaxRotation.ToString();
ErrorWindow error = new ErrorWindow(badSymbolsError);
error.ShowDialog();
}
StartButtonText.Text = "Продовжити";
StartButton.Visibility = Visibility.Collapsed;
PauseButton.Visibility = Visibility.Visible;
StopButton.IsEnabled = true;
ToggleTransformUI(false);
}
public IActionResult Index()
{
TransformationsViewModel viewModel = new TransformationsViewModel();
viewModel.DensityAlpha = viewModel.DensityRed = viewModel.DensityGreen = viewModel.DensityBlue = 100;
return(View(viewModel));
}
public IActionResult Index(TransformationsViewModel viewModel)
{
if (this.ModelState.IsValid)
{
viewModel.ImageBytes = TransformImage(viewModel);
}
return(View(nameof(Index), viewModel));
}
private static IEnumerable <IImageTransformation> LoadImageTransformations(TransformationsViewModel viewModel)
{
List <IImageTransformation> transformations = new List <IImageTransformation>(4);
if (viewModel.Angle != 0)
{
transformations.Add(
new RotationImageTransformation((double)viewModel.Angle));
}
if (viewModel.StretchHorizontal != 0 || viewModel.StretchVertical != 0)
{
transformations.Add(
new StretchImageTransformation(
(double)viewModel.StretchHorizontal / 100,
(double)viewModel.StretchVertical / 100));
}
if (viewModel.FlipHorizontally || viewModel.FlipVertically)
{
transformations.Add(
new FlipImageTransformation(viewModel.FlipHorizontally, viewModel.FlipVertically));
}
if (new decimal[]
{
viewModel.DensityAlpha,
viewModel.DensityRed,
viewModel.DensityGreen,
viewModel.DensityBlue
}.Any(a => a != 100))
{
transformations.Add(
new DensityImageTransformation(
(double)viewModel.DensityAlpha / 100,
(double)viewModel.DensityRed / 100,
(double)viewModel.DensityGreen / 100,
(double)viewModel.DensityBlue / 100
));
}
return(transformations);
}
private byte[] TransformImage(TransformationsViewModel viewModel)
{
var transformations = LoadImageTransformations(viewModel);
Bitmap bmp = null;
using (MemoryStream stm = new MemoryStream())
{
viewModel.File.CopyTo(stm);
bmp = ImageTransformer.Apply(stm, transformations);
// clear memory stream
stm.Position = 0;
stm.SetLength(0);
bmp.Save(stm, System.Drawing.Imaging.ImageFormat.Png);
return(stm.ToArray());
}
}
