private void ImageView_Touch(object sender, Android.Views.View.TouchEventArgs e)
{
int[] location = new int[2];
imageView.GetLocationOnScreen(location);
int x = (int)e.Event.GetX();
int y = (int)e.Event.GetY();
int posX = x - location[0];
int posY = y - location[0];
Aspose.Slides.Drawing.Xamarin.Size presSize = presentation.SlideSize.Size.ToSize();
float coeffX = (float)presSize.Width / imageView.Width;
float coeffY = (float)presSize.Height / imageView.Height;
int presPosX = (int)(posX * coeffX);
int presPosY = (int)(posY * coeffY);
int width = presSize.Width / 50;
int height = width;
Aspose.Slides.IAutoShape ellipse = presentation.Slides[currentSlideNumber].Shapes.AddAutoShape(Aspose.Slides.ShapeType.Ellipse, presPosX, presPosY, width, height);
ellipse.FillFormat.FillType = Aspose.Slides.FillType.Solid;
Random random = new Random();
Aspose.Slides.Drawing.Xamarin.Color slidesColor = Aspose.Slides.Drawing.Xamarin.Color.FromArgb(random.Next(256), random.Next(256), random.Next(256));
ellipse.FillFormat.SolidFillColor.Color = slidesColor;
ShowSlide(currentSlideNumber);
}
private void ShowSlide(int slideNumber)
{
Aspose.Slides.Drawing.Xamarin.Size size = presentation.SlideSize.Size.ToSize();
Aspose.Slides.Drawing.Xamarin.Bitmap bitmap = presentation.Slides[slideNumber].GetThumbnail(size);
imageView.SetImageBitmap(bitmap.ToNativeBitmap());
}
