private void SetCommands()
{
this.ShowImageCommand = new RelayCommand(() =>
{
dynamic pars = new DynamicNavigationParameters();
pars.Attachment = this;
(Window.Current.Content as Frame).Navigate(typeof(FeedbackImagePage), pars);
});
SaveImageCommand = new RelayCommand(async() =>
{
ImageBuffer = await Canvas.SaveAsPngIntoBufferAsync();
InitialImage = await ImageBuffer.AsBitmapImageAsync();
(Window.Current.Content as Frame).Navigate(typeof(FeedbackFormPage), this);
});
DeleteImageCommand = new RelayCommand(() =>
{
MarkedAsDeleted = true;
(Window.Current.Content as Frame).Navigate(typeof(FeedbackFormPage), this);
});
ResetImageCommand = new RelayCommand(() =>
{
Canvas.Children.Clear();
Canvas.Background = InitialImage.AsImageBrush();
});
CloseImageCommand = new RelayCommand(() => { (Window.Current.Content as Frame).GoBack(); });
}
internal async void OrientationChanged(Canvas canvas, Image image)
{
if (this.IsReadOnly)
{
image.Height = ScreenResolution.HeightWithoutScale;
}
else
{
this.IsBusy = true;
BitmapImage attachImage = this.InitialImage;
double width = attachImage.PixelWidth, height = attachImage.PixelHeight;
if (Math.Max(attachImage.PixelWidth, attachImage.PixelHeight) > ScreenResolution.HeightWithoutScale)
{
if (attachImage.PixelWidth > attachImage.PixelHeight)
{
width = ScreenResolution.HeightWithoutScale;
height = ScreenResolution.HeightWithoutScale * ((double)attachImage.PixelHeight / attachImage.PixelWidth);
}
else
{
height = ScreenResolution.HeightWithoutScale;
width = ScreenResolution.HeightWithoutScale * ((double)attachImage.PixelWidth / attachImage.PixelHeight);
}
}
if (canvas.Children.Any())
{
this.ImageBuffer = await canvas.SaveAsPngIntoBufferAsync();
InitialImage = await ImageBuffer.AsBitmapImageAsync();
canvas.Background = this.InitialImage.AsImageBrush();
canvas.Children.Clear();
}
canvas.Width = width;
canvas.Height = height;
this.IsBusy = false;
}
}