public ClippingLine(String name, Point p1, Point p2, int thickness, Color color, Poly targetPoly) : base(name)
{
points = new List <Point>();
points.Add(p1);
points.Add(p2);
this.thickness = thickness;
this.color = color;
this.targetPoly = targetPoly;
}
private void CanvasImage_MouseDown(object sender, MouseButtonEventArgs e)
{
if (Drawing)
{
Point clickPoint = new Point(e.GetPosition(sender as System.Windows.IInputElement));
if (floodFill)
{
CanvasImage.Source = drawer.FloodFill(clickPoint, floodFillColor);
StopDrawing();
floodFill = false;
return;
}
switch (selectedShapeType)
{
case (ShapeType.Line):
case (ShapeType.Circle):
case (ShapeType.ClippingLine):
if (previousClickPoints.Count >= 1)
{
Point p1 = previousClickPoints[0];
Point p2 = clickPoint;
Shape newShape;
switch (selectedShapeType)
{
case ShapeType.Line:
newShape = new Line(selectedShapeType.ToString(), p1, p2, 1, new Color(0, 0, 0, 255));
break;
case ShapeType.Circle:
newShape = new Circle(selectedShapeType.ToString(), p1, p2, new Color(0, 0, 0, 255));
break;
case ShapeType.ClippingLine:
newShape = new ClippingLine(selectedShapeType.ToString(), p1, p2, 1, new Color(0, 0, 0, 255), lastCreatedPoly);
break;
default:
throw new NotImplementedException();
}
CanvasImage.Source = drawer.AddShape(newShape);
ShapeList.SelectedIndex = ShapeList.Items.Count - 1;
StopDrawing();
}
else
{
previousClickPoints.Add(clickPoint);
activeProjectionPoints.Add(CreateProjectionPoint(clickPoint));
}
break;
case (ShapeType.Poly):
if (previousClickPoints.Count >= 2)
{
if (clickPoint.Distance(previousClickPoints[0]) < (double)FINISH_POLY_THRESHOLD) // If is new point is near the first placed point then create polygon
{
Shape newShape = new Poly(selectedShapeType.ToString(), new List <Point>(previousClickPoints), 1, new Color(0, 0, 0, 255));
CanvasImage.Source = drawer.AddShape(newShape);
lastCreatedPoly = newShape as Poly; // For Cyrus-Beck algorithm
ShapeList.SelectedIndex = ShapeList.Items.Count - 1;
StopDrawing();
}
else
{
previousClickPoints.Add(clickPoint);
activeProjectionPoints.Add(CreateProjectionPoint(clickPoint));
}
}
else
{
previousClickPoints.Add(clickPoint);
activeProjectionPoints.Add(CreateProjectionPoint(clickPoint));
}
break;
case (ShapeType.Capsule):
if (previousClickPoints.Count == 2)
{
Point p1 = previousClickPoints[0];
Point p2 = previousClickPoints[1];
Point p3 = clickPoint;
Shape newShape = new Capsule(selectedShapeType.ToString(), p1, p2, p3, new Color(0, 0, 0, 255));
CanvasImage.Source = drawer.AddShape(newShape);
ShapeList.SelectedIndex = ShapeList.Items.Count - 1;
StopDrawing();
}
else
{
previousClickPoints.Add(clickPoint);
activeProjectionPoints.Add(CreateProjectionPoint(clickPoint));
}
break;
case (ShapeType.Rectangle):
if (previousClickPoints.Count == 1)
{
Point p1 = previousClickPoints[0];
Point p2 = clickPoint;
Shape newShape = new Rectangle(selectedShapeType.ToString(), p1, p2, new Color(0, 0, 0, 255));
CanvasImage.Source = drawer.AddShape(newShape);
ShapeList.SelectedIndex = ShapeList.Items.Count - 1;
StopDrawing();
}
else
{
previousClickPoints.Add(clickPoint);
activeProjectionPoints.Add(CreateProjectionPoint(clickPoint));
}
break;
default:
throw new NotImplementedException();
}
}
else
{
DeselectShape();
}
}
