// Be sure to call the base class constructor.
public DottedPathAdorner(UIElement adornedElement, LinkStroke stroke, CustomInkCanvas canvas)
: base(adornedElement)
{
adornedStroke = stroke;
linkStroke = stroke;
this.canvas = canvas;
visualChildren = new VisualCollection(this);
strokeBounds = stroke.GetCustomBound();
linkPath = new Path();
linkPath.Stroke = (Brush) new BrushConverter().ConvertFromString(stroke.style.color);
linkPath.StrokeThickness = stroke.DrawingAttributes.Height;
linkPath.StrokeDashArray = new DoubleCollection {
1, 0.5
};
linkPath.IsHitTestVisible = false;
linkPath.Fill = Brushes.Black;
arrowGeom = new PathGeometry();
lineGeom = new LineGeometry();
for (int i = 1; i < linkStroke.path.Count - 1; i++)
{
lineGeom.StartPoint = linkStroke.path[i - 1].ToPoint();
lineGeom.EndPoint = linkStroke.path[i].ToPoint();
arrowGeom.AddGeometry(lineGeom);
}
AddRelationArrows1();
linkPath.Data = arrowGeom;
arrowGeom = new PathGeometry();
AddRelationArrows();
arrow = new Path();
arrow.Data = arrowGeom;
arrow.Stroke = (Brush) new BrushConverter().ConvertFromString(stroke.style.color);
arrow.StrokeThickness = 2;
if (linkStroke.linkType == 1 || linkStroke.linkType == 2 && linkStroke.style?.thickness != 0)
{
arrow.StrokeThickness = 3;
}
arrow.IsHitTestVisible = false;
arrow.Fill = Brushes.Black;
visualChildren.Add(linkPath);
visualChildren.Add(arrow);
}
public LinkRotateAdorner(UIElement adornedElement, LinkStroke strokeToRotate, CustomInkCanvas actualCanvas)
: base(adornedElement)
{
adornedStroke = strokeToRotate;
linkStroke = strokeToRotate;
canvas = actualCanvas;
// rotation initiale de la stroke (pour dessiner le rectangle)
// Bug. Cheat, but the geometry, the selection Rectangle (newRect) should be the right one.. geom of the stroke?
strokeBounds = strokeToRotate.GetCustomBound();
center = linkStroke.GetCenter();
lastAngle = linkStroke.rotation;
rotation = new RotateTransform(linkStroke.rotation, center.X, center.Y);
visualChildren = new VisualCollection(this);
rotateHandle = new Thumb();
rotateHandle.Cursor = Cursors.Hand;
rotateHandle.Width = 10;
rotateHandle.Height = 10;
rotateHandle.Background = new LinearGradientBrush((Color)ColorConverter.ConvertFromString("#FFc8d4ea"),
(Color)ColorConverter.ConvertFromString("#FF809dce"), 45);
rotateHandle.DragDelta += new DragDeltaEventHandler(rotateHandle_DragDelta);
rotateHandle.DragCompleted += new DragCompletedEventHandler(rotateHandle_DragCompleted);
TransformGroup transform = new TransformGroup();
transform.Children.Add(new RotateTransform(rotation.Angle, rotateHandle.Width / 2, rotateHandle.Height / 2));
transform.Children.Add(new TranslateTransform(-canvas.ActualWidth / 2 + strokeBounds.X + strokeBounds.Width / 2,
-canvas.ActualHeight / 2 + strokeBounds.Y - HANDLEMARGIN));
rotateHandle.RenderTransform = transform;
line = new Path();
line.Stroke = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF809dce"));
line.StrokeThickness = 1;
line.RenderTransform = rotation;
visualChildren.Add(line);
visualChildren.Add(rotateHandle);
pathPreview.IsClosed = false;
rotatePreview = new Path();
rotatePreview.Data = new PathGeometry();
rotatePreview.Stroke = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFBBBBBB"));
rotatePreview.StrokeThickness = 2;
visualChildren.Add(rotatePreview);
}
/// <summary>
/// Rotates the rectangle representing the
/// strokes' bounds as the user drags the
/// Thumb.
/// </summary>
void rotateHandle_DragDelta(object sender, DragDeltaEventArgs e)
{
// Find the angle of which to rotate the shape. Use the right
// triangle that uses the center and the mouse's position
// as vertices for the hypotenuse.
Point pos = Mouse.GetPosition(this);
double deltaX = pos.X - center.X;
double deltaY = pos.Y - center.Y;
if (deltaY.Equals(0))
{
return;
}
double tan = deltaX / deltaY;
double angle = Math.Atan(tan);
// Convert to degrees.
angle = angle * 180 / Math.PI;
// If the mouse crosses the vertical center,
// find the complementary angle.
if (deltaY > 0)
{
angle = 180 - Math.Abs(angle);
}
// Rotate left if the mouse moves left and right
// if the mouse moves right.
if (deltaX < 0)
{
angle = -Math.Abs(angle);
}
else
{
angle = Math.Abs(angle);
}
if (Double.IsNaN(angle))
{
return;
}
// Apply the rotation to the strokes' outline.
rotation = new RotateTransform(angle, center.X, center.Y);
pathPreview.Segments.Clear();
bool isFirst = true;
foreach (Coordinates coordinates in linkStroke.path)
{
if (isFirst)
{
pathPreview.StartPoint = rotation.Transform(coordinates.ToPoint());
isFirst = false;
}
else
{
pathPreview.Segments.Add(new LineSegment(rotation.Transform(coordinates.ToPoint()), true));
}
}
rotatePreview.Data = new PathGeometry(new PathFigureCollection {
pathPreview
});
rotatePreview.Arrange(new Rect(new Size(canvas.ActualWidth, canvas.ActualHeight)));
line.RenderTransform = rotation;
TransformGroup transform = new TransformGroup();
transform.Children.Add(new RotateTransform(rotation.Angle, rotateHandle.Width / 2, rotateHandle.Height / 2 + HANDLEMARGIN + linkStroke.GetCustomBound().Height / 2));
transform.Children.Add(new TranslateTransform(-canvas.ActualWidth / 2 + strokeBounds.X + strokeBounds.Width / 2,
-canvas.ActualHeight / 2 + strokeBounds.Y - HANDLEMARGIN));
rotateHandle.RenderTransform = transform;
}