private void uxImageDisplay_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left &&
_tracking)
{
_tracking = false;
_currentPoint = new PointF(e.X, e.Y);
float selectionWidth = Math.Abs(_start.X - _currentPoint.X);
float selectionHeight = Math.Abs(_start.Y - _currentPoint.Y);
if (selectionWidth >= MIN_SUB_SIZE && selectionHeight >= MIN_SUB_SIZE)
{
using (Bitmap image = _currentImageHolder.LoadBitmap())
{
System.Drawing.Point imageStartPoint = PointUtilities.ConvertToImagePoint(uxImageDisplay, _start.Floor());
System.Drawing.Point imageCurrentPoint = PointUtilities.ConvertToImagePoint(uxImageDisplay, _currentPoint.Floor());
int x = (int)Utitlies.BoundTo(imageStartPoint.X, 0, image.Width);
int y = (int)Utitlies.BoundTo(imageStartPoint.Y, 0, image.Height);
int width = (int)Utitlies.BoundTo(Math.Abs(x - imageCurrentPoint.X), 0, image.Width - x);
int height = (int)Utitlies.BoundTo(Math.Abs(y - imageCurrentPoint.Y), 0, image.Height - y);
try
{
using (Bitmap bitmap = ImageUtilities.SubImage(image, new Rectangle(x, y, width, height)))
{
string newFilename = CreateSubImageFilename(_currentImageHolder.FullFilename);
if (newFilename != null)
{
bitmap.Save(newFilename);
}
}
}
catch (Exception ex)
{
Log.Write("The sub-image could not be saved: " + _currentImageHolder.FullFilename, ex);
Error("The image could not be saved.", ex);
}
}
}
else
{
_clickPoints.Add(new IntPoint(e.X, e.Y));
if (_clickPoints.Count == 4)
{
try
{
List <IntPoint> clickPoints = PointUtilities.ConvertToImagePoints(uxImageDisplay, _clickPoints.ToArray().ConvertToPoints())
.ConvertToIntPoints()
.ToList();
QuadrilateralTransformation transform = new QuadrilateralTransformation(clickPoints, 200, 200);
using (Bitmap image = _currentImageHolder.LoadBitmap())
{
using (Bitmap quadImage = transform.Apply(image))
{
String newFilename = CreateSubImageFilename(_currentImageHolder.FullFilename);
if (newFilename != null)
{
quadImage.Save(newFilename);
}
}
}
}
catch (Exception ex)
{
Log.Write("The sub-image could not be saved: " + _currentImageHolder.FullFilename, ex);
Error("The image could not be saved.", ex);
}
_clickPoints.Clear();
}
uxImageDisplay.Invalidate();
}
}
uxImageDisplay.Invalidate();
}