private void BuildCorner(ref CropThumb crt, Cursor crs)
{
if (crt != null)
{
return;
}
crt = new CropThumb(_cpxThumbWidth);
// Set some arbitrary visual characteristics.
crt.Cursor = crs;
_cnvThumbs.Children.Add(crt);
}
private void BuildCorner(ref CropThumb thumb, Cursor cursor)
{
if (thumb != null)
{
return;
}
thumb = new CropThumb(_thumbWidth);
// Set some arbitrary visual characteristics.
thumb.Cursor = cursor;
_thumbsCanvas.Children.Add(thumb);
}
public CroppingAdorner(UIElement adornedElement, Rect rcInit)
: base(adornedElement)
{
_vc = new VisualCollection(this);
_prCropMask = new PuncturedRect();
_prCropMask.IsHitTestVisible = false;
_prCropMask.RectInterior = rcInit;
_prCropMask.Fill = Fill;
_vc.Add(_prCropMask);
_cnvThumbs = new Canvas();
_cnvThumbs.HorizontalAlignment = HorizontalAlignment.Stretch;
_cnvThumbs.VerticalAlignment = VerticalAlignment.Stretch;
_vc.Add(_cnvThumbs);
BuildCorner(ref _crtTop, Cursors.SizeNS);
BuildCorner(ref _crtBottom, Cursors.SizeNS);
BuildCorner(ref _crtLeft, Cursors.SizeWE);
BuildCorner(ref _crtRight, Cursors.SizeWE);
BuildCorner(ref _crtTopLeft, Cursors.SizeNWSE);
BuildCorner(ref _crtTopRight, Cursors.SizeNESW);
BuildCorner(ref _crtBottomLeft, Cursors.SizeNESW);
BuildCorner(ref _crtBottomRight, Cursors.SizeNWSE);
// Add handlers for Cropping.
_crtBottomLeft.DragDelta += new DragDeltaEventHandler(HandleBottomLeft);
_crtBottomRight.DragDelta += new DragDeltaEventHandler(HandleBottomRight);
_crtTopLeft.DragDelta += new DragDeltaEventHandler(HandleTopLeft);
_crtTopRight.DragDelta += new DragDeltaEventHandler(HandleTopRight);
_crtTop.DragDelta += new DragDeltaEventHandler(HandleTop);
_crtBottom.DragDelta += new DragDeltaEventHandler(HandleBottom);
_crtRight.DragDelta += new DragDeltaEventHandler(HandleRight);
_crtLeft.DragDelta += new DragDeltaEventHandler(HandleLeft);
// Aggiungo maniglia per spostamento
_moveHandle = new CropThumb(15);
_moveHandle.Cursor = Cursors.SizeAll;
_cnvThumbs.Children.Add(_moveHandle);
_moveHandle.ToolTip = "Sposta";
// _moveHandle.Background = Brushes.Orange; // TODO non funziona il colore. Perché ??
_moveHandle.Background = new SolidColorBrush(Colors.Orange);
_moveHandle.DragDelta += new DragDeltaEventHandler(moveHandle_DragDelta);
// Aggiungo una checkbox per gestire il rispetto delle proporzioni della carta.
_checkBoxKeepAspect = new CheckBox();
Binding bind = new Binding();
// bind.Mode = BindingMode.TwoWay;
bind.Source = this;
bind.Path = new PropertyPath("MantainAspectRatio");
_checkBoxKeepAspect.DataContext = this;
_checkBoxKeepAspect.SetBinding(CheckBox.IsCheckedProperty, bind);
_checkBoxKeepAspect.IsChecked = true; // non so perché ma il binding non funziona alla prima battuta. Io imposto la property ma non si illumina la checkbox. Allora lo forzo io.
_checkBoxKeepAspect.ToolTip = "Mantieni proporzioni";
_cnvThumbs.Children.Add(_checkBoxKeepAspect);
//
// Linee
_lineVert = new Line();
_lineVert.StrokeThickness = 1;
_lineVert.Stroke = System.Windows.Media.Brushes.Red;
_lineVert.StrokeDashArray = new DoubleCollection()
{
4, 5
};
_cnvThumbs.Children.Add(_lineVert);
//
_lineHoriz = new Line();
_lineHoriz.Stroke = _lineVert.Stroke;
_lineHoriz.StrokeThickness = _lineVert.StrokeThickness;
_lineHoriz.StrokeDashArray = _lineVert.StrokeDashArray;
_cnvThumbs.Children.Add(_lineHoriz);
//
// We have to keep the clipping interior withing the bounds of the adorned element
// so we have to track it's size to guarantee that...
FrameworkElement fel = adornedElement as FrameworkElement;
if (fel != null)
{
fel.SizeChanged += new SizeChangedEventHandler(AdornedElement_SizeChanged);
}
}
private void BuildCorner(ref CropThumb crt, Cursor crs)
{
if (crt != null) return;
crt = new CropThumb(_cpxThumbWidth);
// Set some arbitrary visual characteristics.
crt.Cursor = crs;
_cnvThumbs.Children.Add(crt);
}
private void BuildCorner(ref CropThumb crt, Cursor cur)
{
if (crt != null) return;
crt = new CropThumb(THUMB_SIZE);
// Set some arbitrary visual characteristics.
crt.Cursor = cur;
_cnvThumbs.Children.Add(crt);
}
