private void boxView_CreateBox(object sender, Rect bounds)
{
boxView.SelectedItems.Clear();
var box = new TessBoxControl();
box.Value = "?";
box.Width = bounds.Width;
box.Height = bounds.Height;
Canvas.SetLeft(box, bounds.Left);
Canvas.SetTop(box, bounds.Top);
_viewModel.Boxes.Add(box);
}
public void AddAfterSelectedBoxes(IEnumerable <TessBoxControl> selectedBoxes)
{
var box = selectedBoxes.LastOrDefault();
if (box != null)
{
var pos = Boxes.IndexOf(box);
var newBox = new TessBoxControl()
{
Width = box.Width,
Height = box.Height,
Value = "n"
};
Canvas.SetLeft(newBox, box.Left + box.Width);
Canvas.SetTop(newBox, box.Top);
Boxes.Insert(pos + 1, newBox);
}
}
void _boxHost_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (!_boxHost.IsMouseCaptured)
{
_mouseDownPos = e.GetPosition(_boxHost);
_boxHost.CaptureMouse();
_mouseDownHitBox = GetHitBox(_mouseDownPos);
if (_mouseDownHitBox != null)
{
_mouseDownHitBox.Focus();
}
else
{
Focus();
}
}
e.Handled = true;
}
public void Load(string imageFileName)
{
var fi = new FileInfo(imageFileName);
var boxFileName = Path.Combine(fi.DirectoryName, Path.GetFileNameWithoutExtension(fi.Name) + ".box");
if (!File.Exists(boxFileName))
{
throw new ApplicationException(string.Format("Box file '{0}' was not found", Path.GetFileName(boxFileName)));
}
Close();
_fileStream = new FileStream(imageFileName, FileMode.Open, FileAccess.Read);
if (TiffHelper.IsTiffFile(_fileStream))
{
_tiffDecoder = new TiffBitmapDecoder(_fileStream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default);
MaxPageIndex = _tiffDecoder.Frames.Count - 1;
}
else
{
MaxPageIndex = 0;
}
int recordIndex = 0;
using (var reader = new StreamReader(boxFileName, Encoding.UTF8))
{
ObservableCollection <TessBoxControl> boxes = null;
while (true)
{
var line = reader.ReadLine();
if (line == null)
{
break;
}
var fields = line.Split(' ');
if (fields.Length != 6)
{
throw new ApplicationException(string.Format("Invalid box file record at line {0}", recordIndex));
}
var boxValue = fields[0];
var pageIndex = int.Parse(fields[5]);
var img = GetPageImage(pageIndex);
//Box file coordinates are with an origin at the bottom left on the image
var left = int.Parse(fields[1]);
var bottom = img.PixelHeight - int.Parse(fields[2]);
var right = int.Parse(fields[3]);
var top = img.PixelHeight - int.Parse(fields[4]);
var width = right - left;
var height = bottom - top;
var box = new TessBoxControl();
box.Value = boxValue;
box.Width = width;
box.Height = height;
Canvas.SetLeft(box, left);
Canvas.SetTop(box, top);
if (!_pageBoxMap.TryGetValue(pageIndex, out boxes))
{
boxes = new ObservableCollection <TessBoxControl>();
_pageBoxMap[pageIndex] = boxes;
}
boxes.Add(box);
recordIndex++;
}
}
_imageFileName = imageFileName;
_boxFileName = boxFileName;
NotifyPropertyChanged("WindowTitle");
//set manually to force SelPageIndex to accept the change
_selPageIndex = -1;
SelPageIndex = 0;
}
void _boxHost_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (_boxHost.IsMouseCaptured)
{
var mouseUpPos = e.GetPosition(_boxHost);
if (_rubberBand != null)
{
_rubberBandHost.Children.Remove(_rubberBand);
_rubberBand = null;
}
_boxHost.ReleaseMouseCapture();
var selectRec = new Rect(_mouseDownPos, mouseUpPos);
//if they are holding one of the ctrl keys, make a new box...
if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{
if (selectRec.Size.Width > 2 && selectRec.Height > 2)
{
var hanlder = CreateBox;
if (hanlder != null)
{
hanlder.Invoke(this, selectRec);
}
}
}
else
{
var mouseUpHitBox = GetHitBox(mouseUpPos);
if (_mouseDownHitBox == null)
{
var boxes = GetHitBoxes(selectRec);
SelectedItems.Clear();
foreach (var box in boxes)
{
SelectedItems.Add(box);
}
}
else
{
if (_mouseDownHitBox == mouseUpHitBox)
{
//mouse down and up on the same box!
if (!Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.RightCtrl))
{
SelectedItems.Clear();
}
if (mouseUpHitBox.IsSelected)
{
SelectedItems.Remove(mouseUpHitBox);
}
else
{
SelectedItems.Add(mouseUpHitBox);
}
}
else
{
var boxes = GetHitBoxes(selectRec);
SelectedItems.Clear();
foreach (var box in boxes)
{
SelectedItems.Add(box);
}
}
}
}
_mouseDownHitBox = null;
}
e.Handled = true;
}
