Exemplo n.º 1
0
        /// <summary>
        ///
        /// </summary>
        public override void Remove()
        {
            if (_line12 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_line12);
                _line12 = null;
            }

            if (_line32 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_line32);
                _line32 = null;
            }

            if (_helperPoint1 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint1);
                _helperPoint1 = null;
            }

            if (_helperPoint2 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint2);
                _helperPoint2 = null;
            }

            if (_helperPoint3 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint3);
                _helperPoint3 = null;
            }

            _style = null;
        }
Exemplo n.º 2
0
 /// <summary>
 ///
 /// </summary>
 public override void ToStateTwo()
 {
     _style  = _editor.Project.Options.HelperStyle;
     _line12 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line12);
     _helperPoint2 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_helperPoint2);
 }
Exemplo n.º 3
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        public override void LeftDown(double x, double y)
        {
            double sx = _editor.Project.Options.SnapToGrid ? Editor.Snap(x, _editor.Project.Options.SnapX) : x;
            double sy = _editor.Project.Options.SnapToGrid ? Editor.Snap(y, _editor.Project.Options.SnapY) : y;

            switch (_currentState)
            {
            case State.None:
            {
                _shape = XLine.Create(
                    sx, sy,
                    _editor.Project.CurrentStyleLibrary.CurrentStyle,
                    _editor.Project.Options.PointShape,
                    _editor.Project.Options.DefaultIsStroked);
                if (_editor.Project.Options.TryToConnect)
                {
                    var result = TryToConnectStart(_shape as XLine, sx, sy);
                    if (!result)
                    {
                        _editor.TryToSplitLine(x, y, _shape.Start);
                    }
                }
                _editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Add(_shape);
                _editor.Project.CurrentContainer.WorkingLayer.Invalidate();
                ToStateOne();
                Move(_shape);
                _editor.Project.CurrentContainer.HelperLayer.Invalidate();
                _currentState           = State.One;
                _editor.CancelAvailable = true;
            }
            break;

            case State.One:
            {
                var line = _shape as XLine;
                if (line != null)
                {
                    line.End.X = sx;
                    line.End.Y = sy;
                    if (_editor.Project.Options.TryToConnect)
                    {
                        var result = TryToConnectEnd(_shape as XLine, sx, sy);
                        if (!result)
                        {
                            _editor.TryToSplitLine(x, y, _shape.End);
                        }
                    }
                    _editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Remove(_shape);
                    Remove();
                    Finalize(_shape);
                    _editor.AddWithHistory(_shape);
                    _currentState           = State.None;
                    _editor.CancelAvailable = false;
                }
            }
            break;
            }
        }
Exemplo n.º 4
0
 /// <summary>
 ///
 /// </summary>
 public override void ToStateThree()
 {
     _line43 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line43);
     _line23 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line23);
     _helperPoint3 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_helperPoint3);
 }
Exemplo n.º 5
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="p"></param>
        /// <param name="treshold"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <returns></returns>
        public static bool HitTestLine(XLine line, Vector2 p, double treshold, double dx, double dy)
        {
            var    a        = new Vector2(line.Start.X + dx, line.Start.Y + dy);
            var    b        = new Vector2(line.End.X + dx, line.End.Y + dy);
            var    nearest  = MathHelpers.NearestPointOnLine(a, b, p);
            double distance = MathHelpers.Distance(p.X, p.Y, nearest.X, nearest.Y);

            return(distance < treshold);
        }
Exemplo n.º 6
0
 /// <summary>
 /// 
 /// </summary>
 /// <param name="x"></param>
 /// <param name="y"></param>
 public override void LeftDown(double x, double y)
 {
     double sx = _editor.Project.Options.SnapToGrid ? Editor.Snap(x, _editor.Project.Options.SnapX) : x;
     double sy = _editor.Project.Options.SnapToGrid ? Editor.Snap(y, _editor.Project.Options.SnapY) : y;
     switch (_currentState)
     {
         case State.None:
             {
                 _shape = XLine.Create(
                     sx, sy,
                     _editor.Project.CurrentStyleLibrary.CurrentStyle,
                     _editor.Project.Options.PointShape,
                     _editor.Project.Options.DefaultIsStroked);
                 if (_editor.Project.Options.TryToConnect)
                 {
                     var result = TryToConnectStart(_shape as XLine, sx, sy);
                     if (!result)
                     {
                         _editor.TryToSplitLine(x, y, _shape.Start);
                     }
                 }
                 _editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Add(_shape);
                 _editor.Project.CurrentContainer.WorkingLayer.Invalidate();
                 ToStateOne();
                 Move(_shape);
                 _editor.Project.CurrentContainer.HelperLayer.Invalidate();
                 _currentState = State.One;
                 _editor.CancelAvailable = true;
             }
             break;
         case State.One:
             {
                 var line = _shape as XLine;
                 if (line != null)
                 {
                     line.End.X = sx;
                     line.End.Y = sy;
                     if (_editor.Project.Options.TryToConnect)
                     {
                         var result = TryToConnectEnd(_shape as XLine, sx, sy);
                         if (!result)
                         {
                             _editor.TryToSplitLine(x, y, _shape.End);
                         }
                     }
                     _editor.Project.CurrentContainer.WorkingLayer.Shapes = _editor.Project.CurrentContainer.WorkingLayer.Shapes.Remove(_shape);
                     Remove();
                     Finalize(_shape);
                     _editor.AddWithHistory(_shape);
                     _currentState = State.None;
                     _editor.CancelAvailable = false;
                 }
             }
             break;
     }
 }
Exemplo n.º 7
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        public bool TryToConnectEnd(XLine line, double x, double y)
        {
            var result = ShapeBounds.HitTest(_editor.Project.CurrentContainer, new Vector2(x, y), _editor.Project.Options.HitTreshold);

            if (result != null && result is XPoint)
            {
                line.End = result as XPoint;
                return(true);
            }
            return(false);
        }
Exemplo n.º 8
0
        /// <summary>
        /// Creates a new instance of the XLine class.
        /// </summary>
        /// <param name="start"></param>
        /// <param name="end"></param>
        /// <param name="isStroked"></param>
        /// <returns></returns>
        public XLine Line(XPoint start, XPoint end, bool isStroked = true)
        {
            var line = XLine.Create(
                start,
                end,
                Context.Editor.Project.CurrentStyleLibrary.CurrentStyle,
                Context.Editor.Project.Options.PointShape,
                isStroked);

            Context.Editor.AddWithHistory(line);
            return(line);
        }
Exemplo n.º 9
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="pss"></param>
        /// <returns></returns>
        public static BaseShape CrossPointShape(ShapeStyle pss)
        {
            var g = XGroup.Create("PointShape");

            var builder = g.Shapes.ToBuilder();

            builder.Add(XLine.Create(-4, 0, 4, 0, pss, null));
            builder.Add(XLine.Create(0, -4, 0, 4, pss, null));
            g.Shapes = builder.ToImmutable();

            return(g);
        }
Exemplo n.º 10
0
        /// <summary>
        ///
        /// </summary>
        public override void Remove()
        {
            if (_ellipse != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_ellipse);
                _ellipse = null;
            }

            if (_startLine != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_startLine);
                _startLine = null;
            }

            if (_endLine != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_endLine);
                _endLine = null;
            }

            if (_p1HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p1HelperPoint);
                _p1HelperPoint = null;
            }

            if (_p2HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p2HelperPoint);
                _p2HelperPoint = null;
            }

            if (_centerHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_centerHelperPoint);
                _centerHelperPoint = null;
            }

            if (_startHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_startHelperPoint);
                _startHelperPoint = null;
            }

            if (_endHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_endHelperPoint);
                _endHelperPoint = null;
            }

            _style = null;
        }
Exemplo n.º 11
0
        /// <summary>
        ///
        /// </summary>
        public override void ToStateThree()
        {
            if (_ellipse != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_ellipse);
                _ellipse = null;
            }

            _endLine = XLine.Create(0, 0, _style, null);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_endLine);
            _endHelperPoint = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_endHelperPoint);
        }
Exemplo n.º 12
0
        /// <summary>
        /// Creates a new instance of the XLine class.
        /// </summary>
        /// <param name="x1"></param>
        /// <param name="y1"></param>
        /// <param name="x2"></param>
        /// <param name="y2"></param>
        /// <param name="isStroked"></param>
        /// <returns></returns>
        public XLine Line(
            double x1      = 30, double y1 = 30,
            double x2      = 60, double y2 = 30,
            bool isStroked = true)
        {
            var line = XLine.Create(
                x1, y1,
                x2, y2,
                Context.Editor.Project.CurrentStyleLibrary.CurrentStyle,
                Context.Editor.Project.Options.PointShape,
                isStroked);

            Context.Editor.AddWithHistory(line);
            return(line);
        }
Exemplo n.º 13
0
        /// <summary>
        ///
        /// </summary>
        public override void ToStateTwo()
        {
            if (_p1HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p1HelperPoint);
                _p1HelperPoint = null;
            }

            if (_p2HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p2HelperPoint);
                _p2HelperPoint = null;
            }

            _startLine = XLine.Create(0, 0, _style, null);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_startLine);
            _startHelperPoint = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_startHelperPoint);
        }
Exemplo n.º 14
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="x2"></param>
        public static void SetMaxLengthHorizontal(XLine line, ref double x1, ref double x2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
                                line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
                                ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
                              line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
                              ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                if (x2 > x1)
                {
                    x1 = x2 - ls.FixedLength.Length;
                }
                else
                {
                    x1 = x2 + ls.FixedLength.Length;
                }
            }

            if (!shortenStart && shortenEnd)
            {
                if (x2 > x1)
                {
                    x2 = x1 + ls.FixedLength.Length;
                }
                else
                {
                    x2 = x1 - ls.FixedLength.Length;
                }
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 15
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="y1"></param>
        /// <param name="y2"></param>
        public static void SetMaxLengthVertical(XLine line, ref double y1, ref double y2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
                                line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
                                ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
                              line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
                              ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                if (y2 > y1)
                {
                    y1 = y2 - ls.FixedLength.Length;
                }
                else
                {
                    y1 = y2 + ls.FixedLength.Length;
                }
            }

            if (!shortenStart && shortenEnd)
            {
                if (y2 > y1)
                {
                    y2 = y1 + ls.FixedLength.Length;
                }
                else
                {
                    y2 = y1 - ls.FixedLength.Length;
                }
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 16
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="y1"></param>
        /// <param name="x2"></param>
        /// <param name="y2"></param>
        public static void SetMaxLengthAll(
            XLine line,
            ref double x1, ref double y1,
            ref double x2, ref double y2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default &&
                                line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags) &&
                                ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default &&
                              line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags) &&
                              ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                double dx       = x1 - x2;
                double dy       = y1 - y2;
                double distance = Math.Sqrt(dx * dx + dy * dy);
                x1 = x2 - (x2 - x1) / distance * ls.FixedLength.Length;
                y1 = y2 - (y2 - y1) / distance * ls.FixedLength.Length;
            }

            if (!shortenStart && shortenEnd)
            {
                double dx       = x2 - x1;
                double dy       = y2 - y1;
                double distance = Math.Sqrt(dx * dx + dy * dy);
                x2 = x1 - (x1 - x2) / distance * ls.FixedLength.Length;
                y2 = y1 - (y1 - y2) / distance * ls.FixedLength.Length;
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 17
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="y1"></param>
        /// <param name="x2"></param>
        /// <param name="y2"></param>
        public static void SetMaxLength(
            XLine line,
            ref double x1, ref double y1,
            ref double x2, ref double y2)
        {
            var ls = line.Style.LineStyle;

            if (ls.FixedLength.Flags == LineFixedLengthFlags.Disabled)
            {
                return;
            }

            if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.All))
            {
                SetMaxLengthAll(line, ref x1, ref y1, ref x2, ref y2);
            }
            else
            {
                if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Vertical))
                {
                    bool isVertical = Math.Round(x1, 1) == Math.Round(x2, 1);
                    if (isVertical)
                    {
                        SetMaxLengthVertical(line, ref y1, ref y2);
                    }
                }

                if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Horizontal))
                {
                    bool isHorizontal = Math.Round(y1, 1) == Math.Round(y2, 1);
                    if (isHorizontal)
                    {
                        SetMaxLengthHorizontal(line, ref x1, ref x2);
                    }
                }
            }
        }
Exemplo n.º 18
0
 /// <summary>
 /// 
 /// </summary>
 public override void ToStateTwo()
 {
     _style = _editor.Project.Options.HelperStyle;
     _line12 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line12);
     _helperPoint2 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_helperPoint2);
 }
Exemplo n.º 19
0
 /// <summary>
 /// 
 /// </summary>
 public override void ToStateThree()
 {
     _line43 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line43);
     _line23 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_line23);
     _helperPoint3 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_helperPoint3);
 }
Exemplo n.º 20
0
        /// <summary>
        /// 
        /// </summary>
        public override void Remove()
        {
            if (_line12 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_line12);
                _line12 = null;
            }

            if (_line43 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_line43);
                _line43 = null;
            }

            if (_line23 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_line23);
                _line23 = null;
            }

            if (_helperPoint1 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint1);
                _helperPoint1 = null;
            }

            if (_helperPoint2 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint2);
                _helperPoint2 = null;
            }

            if (_helperPoint3 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint3);
                _helperPoint3 = null;
            }

            if (_helperPoint4 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_helperPoint4);
                _helperPoint4 = null;
            }

            _style = null;
        }
Exemplo n.º 21
0
 /// <summary>
 /// 
 /// </summary>
 /// <param name="line"></param>
 /// <param name="x"></param>
 /// <param name="y"></param>
 /// <returns></returns>
 public bool TryToConnectStart(XLine line, double x, double y)
 {
     var result = ShapeBounds.HitTest(_editor.Project.CurrentContainer, new Vector2(x, y), _editor.Project.Options.HitTreshold);
     if (result != null && result is XPoint)
     {
         line.Start = result as XPoint;
         return true;
     }
     return false;
 }
Exemplo n.º 22
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="dc"></param>
        /// <param name="line"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="db"></param>
        /// <param name="r"></param>
        public void Draw(object dc, XLine line, double dx, double dy, ImmutableArray<ShapeProperty> db, Record r)
        {
            var _dc = dc as DrawingContext;

            Brush fillLine = ToSolidBrush(line.Style.Fill);
            Pen strokeLine = ToPen(line.Style, _scaleToPage);

            Brush fillStartArrow = ToSolidBrush(line.Style.StartArrowStyle.Fill);
            Pen strokeStartArrow = ToPen(line.Style.StartArrowStyle, _scaleToPage);

            Brush fillEndArrow = ToSolidBrush(line.Style.EndArrowStyle.Fill);
            Pen strokeEndArrow = ToPen(line.Style.EndArrowStyle, _scaleToPage);

            double _x1 = line.Start.X + dx;
            double _y1 = line.Start.Y + dy;
            double _x2 = line.End.X + dx;
            double _y2 = line.End.Y + dy;

            XLine.SetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);

            float x1 = _scaleToPage(_x1);
            float y1 = _scaleToPage(_y1);
            float x2 = _scaleToPage(_x2);
            float y2 = _scaleToPage(_y2);

            var sas = line.Style.StartArrowStyle;
            var eas = line.Style.EndArrowStyle;
            double a1 = Math.Atan2(y1 - y2, x1 - x2);
            double a2 = Math.Atan2(y2 - y1, x2 - x1);

            var t1 = MatrixHelper.Rotation(a1, new Vector(x1, y1));
            var t2 = MatrixHelper.Rotation(a2, new Vector(x2, y2));

            Point pt1 = default(Point);
            Point pt2 = default(Point);

            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1 = 2.0 * radiusX1;
            double sizeY1 = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt1 = new Point(x1, y1);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt1 = MatrixHelper.TransformPoint(t1, new Point(x1 - (float)sizeX1, y1));
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        var d = _dc.PushPreTransform(t1);
                        DrawRectangleInternal(_dc, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        d.Dispose();
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt1 = MatrixHelper.TransformPoint(t1, new Point(x1 - (float)sizeX1, y1));
                        var d = _dc.PushPreTransform(t1);
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        DrawEllipseInternal(_dc, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        d.Dispose();
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        var pts = new Point[]
                        {
                            new Point(x1, y1),
                            new Point(x1 - (float)sizeX1, y1 + (float)sizeY1),
                            new Point(x1, y1),
                            new Point(x1 - (float)sizeX1, y1 - (float)sizeY1),
                            new Point(x1, y1)
                        };
                        pt1 = MatrixHelper.TransformPoint(t1, pts[0]);
                        var p11 = MatrixHelper.TransformPoint(t1, pts[1]);
                        var p21 = MatrixHelper.TransformPoint(t1, pts[2]);
                        var p12 = MatrixHelper.TransformPoint(t1, pts[3]);
                        var p22 = MatrixHelper.TransformPoint(t1, pts[4]);
                        DrawLineInternal(_dc, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_dc, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
            double sizeX2 = 2.0 * radiusX2;
            double sizeY2 = 2.0 * radiusY2;

            switch (eas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt2 = new Point(x2, y2);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt2 = MatrixHelper.TransformPoint(t2, new Point(x2 - (float)sizeX2, y2));
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        var d = _dc.PushPreTransform(t2);
                        DrawRectangleInternal(_dc, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                        d.Dispose();
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt2 = MatrixHelper.TransformPoint(t2, new Point(x2 - (float)sizeX2, y2));
                        var d = _dc.PushPreTransform(t2);
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        DrawEllipseInternal(_dc, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                        d.Dispose();
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        var pts = new Point[]
                        {
                            new Point(x2, y2),
                            new Point(x2 - (float)sizeX2, y2 + (float)sizeY2),
                            new Point(x2, y2),
                            new Point(x2 - (float)sizeX2, y2 - (float)sizeY2),
                            new Point(x2, y2)
                        };
                        pt2 = MatrixHelper.TransformPoint(t2, pts[0]);
                        var p11 = MatrixHelper.TransformPoint(t2, pts[1]);
                        var p21 = MatrixHelper.TransformPoint(t2, pts[2]);
                        var p12 = MatrixHelper.TransformPoint(t2, pts[3]);
                        var p22 = MatrixHelper.TransformPoint(t2, pts[4]);
                        DrawLineInternal(_dc, strokeEndArrow, eas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_dc, strokeEndArrow, eas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            DrawLineInternal(_dc, strokeLine, line.IsStroked, ref pt1, ref pt2);

            // TODO: fillLine.Dispose();
            // TODO: strokeLine.Dispose();

            // TODO: fillStartArrow.Dispose();
            // TODO: strokeStartArrow.Dispose();

            // TODO: fillEndArrow.Dispose();
            // TODO: strokeEndArrow.Dispose();
        }
Exemplo n.º 23
0
        public void Draw(object ds, XLine line, double dx, double dy, ImmutableArray<Property> db, Record r)
        {
            // TODO: Finish draw line implementation.
            var _ds = ds as CanvasDrawingSession;

            double thicknessLine = line.Style.Thickness / _state.Zoom;
            double thicknessStartArrow = line.Style.StartArrowStyle.Thickness / _state.Zoom;
            double thicknessEndArrow = line.Style.EndArrowStyle.Thickness / _state.Zoom;

            var fillLine = ToColor(line.Style.Fill);
            var strokeLine = ToColor(line.Style.Stroke);

            var fillStartArrow = ToColor(line.Style.StartArrowStyle.Fill);
            var strokeStartArrow = ToColor(line.Style.StartArrowStyle.Stroke);

            var fillEndArrow = ToColor(line.Style.EndArrowStyle.Fill);
            var strokeEndArrow = ToColor(line.Style.EndArrowStyle.Stroke);

            var ssLine = CreateStrokeStyle(line.Style);
            var ssStartArrow = CreateStrokeStyle(line.Style.StartArrowStyle);
            var ssEndArrow = CreateStrokeStyle(line.Style.EndArrowStyle);

            double _x1 = line.Start.X + dx;
            double _y1 = line.Start.Y + dy;
            double _x2 = line.End.X + dx;
            double _y2 = line.End.Y + dy;

            XLine.SetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);

            float x1 = (float)_x1;
            float y1 = (float)_y1;
            float x2 = (float)_x2;
            float y2 = (float)_y2;

            var sas = line.Style.StartArrowStyle;
            var eas = line.Style.EndArrowStyle;
            float a1 = (float)Math.Atan2(y1 - y2, x1 - x2);
            float a2 = (float)Math.Atan2(y2 - y1, x2 - x1);

            var t1 = N.Matrix3x2.CreateRotation(a1, new N.Vector2(x1, y1));
            var t2 = N.Matrix3x2.CreateRotation(a2, new N.Vector2(x2, y2));

            N.Vector2 pt1;
            N.Vector2 pt2;

            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1 = 2.0 * radiusX1;
            double sizeY1 = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt1 = new N.Vector2(x1, y1);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt1 = N.Vector2.Transform(new N.Vector2(x1 - (float)sizeX1, y1), t1);
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        var old = _ds.Transform;
                        _ds.Transform = t1;
                        DrawRectangleInternal(_ds, fillStartArrow, strokeStartArrow, ssStartArrow, sas.IsStroked, sas.IsFilled, ref rect, thicknessStartArrow);
                        _ds.Transform = old;
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt1 = N.Vector2.Transform(new N.Vector2(x1 - (float)sizeX1, y1), t1);
                        var old = _ds.Transform;
                        _ds.Transform = t1;
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        DrawEllipseInternal(_ds, fillStartArrow, strokeStartArrow, ssStartArrow, sas.IsStroked, sas.IsFilled, ref rect, thicknessStartArrow);
                        _ds.Transform = old;
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        pt1 = N.Vector2.Transform(new N.Vector2(x1, y1), t1);
                        var p11 = N.Vector2.Transform(new N.Vector2(x1 - (float)sizeX1, y1 + (float)sizeY1), t1);
                        var p21 = N.Vector2.Transform(new N.Vector2(x1, y1), t1);
                        var p12 = N.Vector2.Transform(new N.Vector2(x1 - (float)sizeX1, y1 - (float)sizeY1), t1);
                        var p22 = N.Vector2.Transform(new N.Vector2(x1, y1), t1);
                        DrawLineInternal(_ds, strokeStartArrow, ssStartArrow, sas.IsStroked, ref p11, ref p21, thicknessStartArrow);
                        DrawLineInternal(_ds, strokeStartArrow, ssStartArrow, sas.IsStroked, ref p12, ref p22, thicknessStartArrow);
                    }
                    break;
            }

            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
            double sizeX2 = 2.0 * radiusX2;
            double sizeY2 = 2.0 * radiusY2;

            switch (eas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt2 = new N.Vector2(x2, y2);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt2 = N.Vector2.Transform(new N.Vector2(x2 - (float)sizeX2, y2), t2);
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        var old = _ds.Transform;
                        _ds.Transform = t1;
                        DrawRectangleInternal(_ds, fillEndArrow, strokeEndArrow, ssEndArrow, eas.IsStroked, eas.IsFilled, ref rect, thicknessEndArrow);
                        _ds.Transform = old;
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt2 = N.Vector2.Transform(new N.Vector2(x2 - (float)sizeX2, y2), t2);
                        var old = _ds.Transform;
                        _ds.Transform = t1;
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        DrawEllipseInternal(_ds, fillEndArrow, strokeEndArrow, ssEndArrow, eas.IsStroked, eas.IsFilled, ref rect, thicknessEndArrow);
                        _ds.Transform = old;
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        pt2 = N.Vector2.Transform(new N.Vector2(x2, y2), t2);
                        var p11 = N.Vector2.Transform(new N.Vector2(x2 - (float)sizeX2, y2 + (float)sizeY2), t2);
                        var p21 = N.Vector2.Transform(new N.Vector2(x2, y2), t2);
                        var p12 = N.Vector2.Transform(new N.Vector2(x2 - (float)sizeX2, y2 - (float)sizeY2), t2);
                        var p22 = N.Vector2.Transform(new N.Vector2(x2, y2), t2);
                        DrawLineInternal(_ds, strokeEndArrow, ssEndArrow, eas.IsStroked, ref p11, ref p21, thicknessEndArrow);
                        DrawLineInternal(_ds, strokeEndArrow, ssEndArrow, eas.IsStroked, ref p12, ref p22, thicknessEndArrow);
                    }
                    break;
            }

            DrawLineInternal(_ds, strokeLine, ssLine, line.IsStroked, ref pt1, ref pt2, thicknessLine);

            ssEndArrow.Dispose();
            ssStartArrow.Dispose();
            ssLine.Dispose();
        }
Exemplo n.º 24
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="gfx"></param>
        /// <param name="line"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="db"></param>
        /// <param name="r"></param>
        public void Draw(object gfx, XLine line, double dx, double dy, ImmutableArray<ShapeProperty> db, Record r)
        {
            var _gfx = gfx as Graphics;

            Brush fillLine = ToSolidBrush(line.Style.Fill);
            Pen strokeLine = ToPen(line.Style, _scaleToPage);

            Brush fillStartArrow = ToSolidBrush(line.Style.StartArrowStyle.Fill);
            Pen strokeStartArrow = ToPen(line.Style.StartArrowStyle, _scaleToPage);

            Brush fillEndArrow = ToSolidBrush(line.Style.EndArrowStyle.Fill);
            Pen strokeEndArrow = ToPen(line.Style.EndArrowStyle, _scaleToPage);

            double _x1 = line.Start.X + dx;
            double _y1 = line.Start.Y + dy;
            double _x2 = line.End.X + dx;
            double _y2 = line.End.Y + dy;

            XLine.SetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);

            float x1 = _scaleToPage(_x1);
            float y1 = _scaleToPage(_y1);
            float x2 = _scaleToPage(_x2);
            float y2 = _scaleToPage(_y2);

            var sas = line.Style.StartArrowStyle;
            var eas = line.Style.EndArrowStyle;
            float a1 = (float)(Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI);
            float a2 = (float)(Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI);

            var t1 = new Matrix();
            var c1 = new PointF(x1, y1);
            t1.RotateAt(a1, c1);

            var t2 = new Matrix();
            var c2 = new PointF(x2, y2);
            t2.RotateAt(a2, c2);

            PointF pt1;
            PointF pt2;

            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1 = 2.0 * radiusX1;
            double sizeY1 = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt1 = new PointF(x1, y1);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        var pts = new PointF[] { new PointF(x1 - (float)sizeX1, y1) };
                        t1.TransformPoints(pts);
                        pt1 = pts[0];
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        var gs = _gfx.Save();
                        _gfx.MultiplyTransform(t1);
                        DrawRectangleInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        _gfx.Restore(gs);
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        var pts = new PointF[] { new PointF(x1 - (float)sizeX1, y1) };
                        t1.TransformPoints(pts);
                        pt1 = pts[0];
                        var gs = _gfx.Save();
                        _gfx.MultiplyTransform(t1);
                        var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        DrawEllipseInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                        _gfx.Restore(gs);
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        var pts = new PointF[]
                        {
                            new PointF(x1, y1),
                            new PointF(x1 - (float)sizeX1, y1 + (float)sizeY1),
                            new PointF(x1, y1),
                            new PointF(x1 - (float)sizeX1, y1 - (float)sizeY1),
                            new PointF(x1, y1)
                        };
                        t1.TransformPoints(pts);
                        pt1 = pts[0];
                        var p11 = pts[1];
                        var p21 = pts[2];
                        var p12 = pts[3];
                        var p22 = pts[4];
                        DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
            double sizeX2 = 2.0 * radiusX2;
            double sizeY2 = 2.0 * radiusY2;

            switch (eas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt2 = new PointF(x2, y2);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        var pts = new PointF[] { new PointF(x2 - (float)sizeX2, y2) };
                        t2.TransformPoints(pts);
                        pt2 = pts[0];
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        var gs = _gfx.Save();
                        _gfx.MultiplyTransform(t2);
                        DrawRectangleInternal(_gfx, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                        _gfx.Restore(gs);
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        var pts = new PointF[] { new PointF(x2 - (float)sizeX2, y2) };
                        t2.TransformPoints(pts);
                        pt2 = pts[0];
                        var gs = _gfx.Save();
                        _gfx.MultiplyTransform(t2);
                        var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        DrawEllipseInternal(_gfx, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                        _gfx.Restore(gs);
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        var pts = new PointF[]
                        {
                            new PointF(x2, y2),
                            new PointF(x2 - (float)sizeX2, y2 + (float)sizeY2),
                            new PointF(x2, y2),
                            new PointF(x2 - (float)sizeX2, y2 - (float)sizeY2),
                            new PointF(x2, y2)
                        };
                        t2.TransformPoints(pts);
                        pt2 = pts[0];
                        var p11 = pts[1];
                        var p21 = pts[2];
                        var p12 = pts[3];
                        var p22 = pts[4];
                        DrawLineInternal(_gfx, strokeEndArrow, eas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_gfx, strokeEndArrow, eas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            _gfx.DrawLine(strokeLine, pt1, pt2);

            fillLine.Dispose();
            strokeLine.Dispose();

            fillStartArrow.Dispose();
            strokeStartArrow.Dispose();

            fillEndArrow.Dispose();
            strokeEndArrow.Dispose();
        }
Exemplo n.º 25
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="x2"></param>
        public static void SetMaxLengthHorizontal(XLine line, ref double x1, ref double x2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default
                && line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default
                && line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                if (x2 > x1)
                    x1 = x2 - ls.FixedLength.Length;
                else
                    x1 = x2 + ls.FixedLength.Length;
            }

            if (!shortenStart && shortenEnd)
            {
                if (x2 > x1)
                    x2 = x1 + ls.FixedLength.Length;
                else
                    x2 = x1 - ls.FixedLength.Length;
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 26
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="line"></param>
        /// <param name="y1"></param>
        /// <param name="y2"></param>
        public static void SetMaxLengthVertical(XLine line, ref double y1, ref double y2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default
                && line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default
                && line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                if (y2 > y1)
                    y1 = y2 - ls.FixedLength.Length;
                else
                    y1 = y2 + ls.FixedLength.Length;
            }

            if (!shortenStart && shortenEnd)
            {
                if (y2 > y1)
                    y2 = y1 + ls.FixedLength.Length;
                else
                    y2 = y1 - ls.FixedLength.Length;
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 27
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="y1"></param>
        /// <param name="x2"></param>
        /// <param name="y2"></param>
        public static void SetMaxLengthAll(
            XLine line,
            ref double x1, ref double y1,
            ref double x2, ref double y2)
        {
            var ls = line.Style.LineStyle;

            bool shortenStart = ls.FixedLength.StartTrigger.Flags != ShapeStateFlags.Default
                && line.Start.State.Flags.HasFlag(ls.FixedLength.StartTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Start);

            bool shortenEnd = ls.FixedLength.EndTrigger.Flags != ShapeStateFlags.Default
                && line.End.State.Flags.HasFlag(ls.FixedLength.EndTrigger.Flags)
                && ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.End);

            if (shortenStart && !shortenEnd)
            {
                double dx = x1 - x2;
                double dy = y1 - y2;
                double distance = Math.Sqrt(dx * dx + dy * dy);
                x1 = x2 - (x2 - x1) / distance * ls.FixedLength.Length;
                y1 = y2 - (y2 - y1) / distance * ls.FixedLength.Length;
            }

            if (!shortenStart && shortenEnd)
            {
                double dx = x2 - x1;
                double dy = y2 - y1;
                double distance = Math.Sqrt(dx * dx + dy * dy);
                x2 = x1 - (x1 - x2) / distance * ls.FixedLength.Length;
                y2 = y1 - (y1 - y2) / distance * ls.FixedLength.Length;
            }

            if (shortenStart && shortenEnd)
            {
                // TODO: Implement shorten start and end case.
            }
        }
Exemplo n.º 28
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="gfx"></param>
        /// <param name="line"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="db"></param>
        /// <param name="r"></param>
        public void Draw(object gfx, XLine line, double dx, double dy, ImmutableArray <ShapeProperty> db, Record r)
        {
            var _gfx = gfx as Graphics;

            Brush fillLine   = ToSolidBrush(line.Style.Fill);
            Pen   strokeLine = ToPen(line.Style, _scaleToPage);

            Brush fillStartArrow   = ToSolidBrush(line.Style.StartArrowStyle.Fill);
            Pen   strokeStartArrow = ToPen(line.Style.StartArrowStyle, _scaleToPage);

            Brush fillEndArrow   = ToSolidBrush(line.Style.EndArrowStyle.Fill);
            Pen   strokeEndArrow = ToPen(line.Style.EndArrowStyle, _scaleToPage);

            double _x1 = line.Start.X + dx;
            double _y1 = line.Start.Y + dy;
            double _x2 = line.End.X + dx;
            double _y2 = line.End.Y + dy;

            XLine.SetMaxLength(line, ref _x1, ref _y1, ref _x2, ref _y2);

            float x1 = _scaleToPage(_x1);
            float y1 = _scaleToPage(_y1);
            float x2 = _scaleToPage(_x2);
            float y2 = _scaleToPage(_y2);

            var   sas = line.Style.StartArrowStyle;
            var   eas = line.Style.EndArrowStyle;
            float a1  = (float)(Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI);
            float a2  = (float)(Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI);

            var t1 = new Matrix();
            var c1 = new PointF(x1, y1);

            t1.RotateAt(a1, c1);

            var t2 = new Matrix();
            var c2 = new PointF(x2, y2);

            t2.RotateAt(a2, c2);

            PointF pt1;
            PointF pt2;

            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1   = 2.0 * radiusX1;
            double sizeY1   = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
            default:
            case ArrowType.None:
            {
                pt1 = new PointF(x1, y1);
            }
            break;

            case ArrowType.Rectangle:
            {
                var pts = new PointF[] { new PointF(x1 - (float)sizeX1, y1) };
                t1.TransformPoints(pts);
                pt1 = pts[0];
                var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                var gs   = _gfx.Save();
                _gfx.MultiplyTransform(t1);
                DrawRectangleInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                _gfx.Restore(gs);
            }
            break;

            case ArrowType.Ellipse:
            {
                var pts = new PointF[] { new PointF(x1 - (float)sizeX1, y1) };
                t1.TransformPoints(pts);
                pt1 = pts[0];
                var gs = _gfx.Save();
                _gfx.MultiplyTransform(t1);
                var rect = new Rect2(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                DrawEllipseInternal(_gfx, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                _gfx.Restore(gs);
            }
            break;

            case ArrowType.Arrow:
            {
                var pts = new PointF[]
                {
                    new PointF(x1, y1),
                    new PointF(x1 - (float)sizeX1, y1 + (float)sizeY1),
                    new PointF(x1, y1),
                    new PointF(x1 - (float)sizeX1, y1 - (float)sizeY1),
                    new PointF(x1, y1)
                };
                t1.TransformPoints(pts);
                pt1 = pts[0];
                var p11 = pts[1];
                var p21 = pts[2];
                var p12 = pts[3];
                var p22 = pts[4];
                DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
                DrawLineInternal(_gfx, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
            }
            break;
            }

            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
            double sizeX2   = 2.0 * radiusX2;
            double sizeY2   = 2.0 * radiusY2;

            switch (eas.ArrowType)
            {
            default:
            case ArrowType.None:
            {
                pt2 = new PointF(x2, y2);
            }
            break;

            case ArrowType.Rectangle:
            {
                var pts = new PointF[] { new PointF(x2 - (float)sizeX2, y2) };
                t2.TransformPoints(pts);
                pt2 = pts[0];
                var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                var gs   = _gfx.Save();
                _gfx.MultiplyTransform(t2);
                DrawRectangleInternal(_gfx, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                _gfx.Restore(gs);
            }
            break;

            case ArrowType.Ellipse:
            {
                var pts = new PointF[] { new PointF(x2 - (float)sizeX2, y2) };
                t2.TransformPoints(pts);
                pt2 = pts[0];
                var gs = _gfx.Save();
                _gfx.MultiplyTransform(t2);
                var rect = new Rect2(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                DrawEllipseInternal(_gfx, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                _gfx.Restore(gs);
            }
            break;

            case ArrowType.Arrow:
            {
                var pts = new PointF[]
                {
                    new PointF(x2, y2),
                    new PointF(x2 - (float)sizeX2, y2 + (float)sizeY2),
                    new PointF(x2, y2),
                    new PointF(x2 - (float)sizeX2, y2 - (float)sizeY2),
                    new PointF(x2, y2)
                };
                t2.TransformPoints(pts);
                pt2 = pts[0];
                var p11 = pts[1];
                var p21 = pts[2];
                var p12 = pts[3];
                var p22 = pts[4];
                DrawLineInternal(_gfx, strokeEndArrow, eas.IsStroked, ref p11, ref p21);
                DrawLineInternal(_gfx, strokeEndArrow, eas.IsStroked, ref p12, ref p22);
            }
            break;
            }

            _gfx.DrawLine(strokeLine, pt1, pt2);

            fillLine.Dispose();
            strokeLine.Dispose();

            fillStartArrow.Dispose();
            strokeStartArrow.Dispose();

            fillEndArrow.Dispose();
            strokeEndArrow.Dispose();
        }
Exemplo n.º 29
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        /// <summary>
        /// 
        /// </summary>
        public override void ToStateThree()
        {
            if (_ellipse != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_ellipse);
                _ellipse = null;
            }

            _endLine = XLine.Create(0, 0, _style, null);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_endLine);
            _endHelperPoint = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_endHelperPoint);
        }
Exemplo n.º 30
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 private void ToStateTwoQBezier()
 {
     _style = _editor.Project.Options.HelperStyle;
     _qbezierLine12 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_qbezierLine12);
     _qbezierLine32 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_qbezierLine32);
     _qbezierHelperPoint2 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_qbezierHelperPoint2);
 }
Exemplo n.º 31
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        private void RemoveQBezierHelpers()
        {
            if (_qbezierLine12 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_qbezierLine12);
                _qbezierLine12 = null;
            }

            if (_qbezierLine32 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_qbezierLine32);
                _qbezierLine32 = null;
            }

            if (_qbezierHelperPoint1 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_qbezierHelperPoint1);
                _qbezierHelperPoint1 = null;
            }

            if (_qbezierHelperPoint2 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_qbezierHelperPoint2);
                _qbezierHelperPoint2 = null;
            }

            if (_qbezierHelperPoint3 != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_qbezierHelperPoint3);
                _qbezierHelperPoint3 = null;
            }

            _style = null;
        }
Exemplo n.º 32
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 private void ToStateThreeBezier()
 {
     _bezierLine43 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_bezierLine43);
     _bezierLine23 = XLine.Create(0, 0, _style, null);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_bezierLine23);
     _bezierHelperPoint3 = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
     _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_bezierHelperPoint3);
 }
Exemplo n.º 33
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="dc"></param>
        /// <param name="line"></param>
        /// <param name="dx"></param>
        /// <param name="dy"></param>
        /// <param name="db"></param>
        /// <param name="r"></param>
        public void Draw(object dc, XLine line, double dx, double dy, ImmutableArray<Property> db, Record r)
        {
            var _dc = dc as DrawingContext;

            var style = line.Style;
            if (style == null)
                return;

            double zoom = _state.Zoom;
            double thicknessLine = style.Thickness / zoom;
            double halfLine = thicknessLine / 2.0;
            double thicknessStartArrow = style.StartArrowStyle.Thickness / zoom;
            double halfStartArrow = thicknessStartArrow / 2.0;
            double thicknessEndArrow = style.EndArrowStyle.Thickness / zoom;
            double halfEndArrow = thicknessEndArrow / 2.0;

            // line style
            Tuple<Brush, Pen> lineCache = null;
            Brush fillLine;
            Pen strokeLine;
            if (_enableStyleCache
                && _styleCache.TryGetValue(style, out lineCache))
            {
                fillLine = lineCache.Item1;
                strokeLine = lineCache.Item2;
            }
            else
            {
                fillLine = CreateBrush(style.Fill);
                strokeLine = CreatePen(style, thicknessLine);
                if (_enableStyleCache)
                    _styleCache.Add(style, Tuple.Create(fillLine, strokeLine));
            }

            // start arrow style
            Tuple<Brush, Pen> startArrowCache = null;
            Brush fillStartArrow;
            Pen strokeStartArrow;
            if (_enableArrowStyleCache
                && _arrowStyleCache.TryGetValue(style.StartArrowStyle, out startArrowCache))
            {
                fillStartArrow = startArrowCache.Item1;
                strokeStartArrow = startArrowCache.Item2;
            }
            else
            {
                fillStartArrow = CreateBrush(style.StartArrowStyle.Fill);
                strokeStartArrow = CreatePen(style.StartArrowStyle, thicknessStartArrow);
                if (_enableArrowStyleCache)
                    _arrowStyleCache.Add(style.StartArrowStyle, Tuple.Create(fillStartArrow, strokeStartArrow));
            }

            // end arrow style
            Tuple<Brush, Pen> endArrowCache = null;
            Brush fillEndArrow;
            Pen strokeEndArrow;
            if (_enableArrowStyleCache
                && _arrowStyleCache.TryGetValue(style.EndArrowStyle, out endArrowCache))
            {
                fillEndArrow = endArrowCache.Item1;
                strokeEndArrow = endArrowCache.Item2;
            }
            else
            {
                fillEndArrow = CreateBrush(style.EndArrowStyle.Fill);
                strokeEndArrow = CreatePen(style.EndArrowStyle, thicknessEndArrow);
                if (_enableArrowStyleCache)
                    _arrowStyleCache.Add(style.EndArrowStyle, Tuple.Create(fillEndArrow, strokeEndArrow));
            }

            // line max length
            double x1 = line.Start.X + dx;
            double y1 = line.Start.Y + dy;
            double x2 = line.End.X + dx;
            double y2 = line.End.Y + dy;

            XLine.SetMaxLength(line, ref x1, ref y1, ref x2, ref y2);

            // arrow transforms
            var sas = style.StartArrowStyle;
            var eas = style.EndArrowStyle;
            double a1 = Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI;
            double a2 = Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI;
            bool doRectTransform1 = a1 % 90.0 != 0.0;
            bool doRectTransform2 = a2 % 90.0 != 0.0;

            var t1 = new RotateTransform(a1, x1, y1);
            var t2 = new RotateTransform(a2, x2, y2);

            Point pt1;
            Point pt2;

            // draw start arrow
            double radiusX1 = sas.RadiusX;
            double radiusY1 = sas.RadiusY;
            double sizeX1 = 2.0 * radiusX1;
            double sizeY1 = 2.0 * radiusY1;

            switch (sas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt1 = new Point(x1, y1);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt1 = t1.Transform(new Point(x1 - sizeX1, y1));
                        var rect = new Rect(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
                        if (doRectTransform1)
                        {
                            _dc.PushTransform(t1);
                            DrawRectangleInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
                            _dc.Pop();
                        }
                        else
                        {
                            var bounds = t1.TransformBounds(rect);
                            DrawRectangleInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref bounds);
                        }
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt1 = t1.Transform(new Point(x1 - sizeX1, y1));
                        _dc.PushTransform(t1);
                        var c = new Point(x1 - radiusX1, y1);
                        DrawEllipseInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref c, radiusX1, radiusY1);
                        _dc.Pop();
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        pt1 = t1.Transform(new Point(x1, y1));
                        var p11 = t1.Transform(new Point(x1 - sizeX1, y1 + sizeY1));
                        var p21 = t1.Transform(new Point(x1, y1));
                        var p12 = t1.Transform(new Point(x1 - sizeX1, y1 - sizeY1));
                        var p22 = t1.Transform(new Point(x1, y1));
                        DrawLineInternal(_dc, halfStartArrow, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_dc, halfStartArrow, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            // draw end arrow
            double radiusX2 = eas.RadiusX;
            double radiusY2 = eas.RadiusY;
            double sizeX2 = 2.0 * radiusX2;
            double sizeY2 = 2.0 * radiusY2;

            switch (eas.ArrowType)
            {
                default:
                case ArrowType.None:
                    {
                        pt2 = new Point(x2, y2);
                    }
                    break;
                case ArrowType.Rectangle:
                    {
                        pt2 = t2.Transform(new Point(x2 - sizeX2, y2));
                        var rect = new Rect(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
                        if (doRectTransform2)
                        {
                            _dc.PushTransform(t2);
                            DrawRectangleInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
                            _dc.Pop();
                        }
                        else
                        {
                            var bounds = t2.TransformBounds(rect);
                            DrawRectangleInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref bounds);
                        }
                    }
                    break;
                case ArrowType.Ellipse:
                    {
                        pt2 = t2.Transform(new Point(x2 - sizeX2, y2));
                        _dc.PushTransform(t2);
                        var c = new Point(x2 - radiusX2, y2);
                        DrawEllipseInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref c, radiusX2, radiusY2);
                        _dc.Pop();
                    }
                    break;
                case ArrowType.Arrow:
                    {
                        pt2 = t2.Transform(new Point(x2, y2));
                        var p11 = t2.Transform(new Point(x2 - sizeX2, y2 + sizeY2));
                        var p21 = t2.Transform(new Point(x2, y2));
                        var p12 = t2.Transform(new Point(x2 - sizeX2, y2 - sizeY2));
                        var p22 = t2.Transform(new Point(x2, y2));
                        DrawLineInternal(_dc, halfEndArrow, strokeEndArrow, eas.IsStroked, ref p11, ref p21);
                        DrawLineInternal(_dc, halfEndArrow, strokeEndArrow, eas.IsStroked, ref p12, ref p22);
                    }
                    break;
            }

            // draw line using points from arrow transforms
            DrawLineInternal(_dc, halfLine, strokeLine, line.IsStroked, ref pt1, ref pt2);
        }
Exemplo n.º 34
0
        /// <summary>
        /// 
        /// </summary>
        public override void Remove()
        {
            if (_ellipse != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_ellipse);
                _ellipse = null;
            }

            if (_startLine != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_startLine);
                _startLine = null;
            }

            if (_endLine != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_endLine);
                _endLine = null;
            }

            if (_p1HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p1HelperPoint);
                _p1HelperPoint = null;
            }

            if (_p2HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p2HelperPoint);
                _p2HelperPoint = null;
            }

            if (_centerHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_centerHelperPoint);
                _centerHelperPoint = null;
            }

            if (_startHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_startHelperPoint);
                _startHelperPoint = null;
            }

            if (_endHelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_endHelperPoint);
                _endHelperPoint = null;
            }

            _style = null;
        }
Exemplo n.º 35
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="line"></param>
        /// <param name="x1"></param>
        /// <param name="y1"></param>
        /// <param name="x2"></param>
        /// <param name="y2"></param>
        public static void SetMaxLength(
            XLine line,
            ref double x1, ref double y1,
            ref double x2, ref double y2)
        {
            var ls = line.Style.LineStyle;

            if (ls.FixedLength.Flags == LineFixedLengthFlags.Disabled)
                return;

            if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.All))
            {
                SetMaxLengthAll(line, ref x1, ref y1, ref x2, ref y2);
            }
            else
            {
                if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Vertical))
                {
                    bool isVertical = Math.Round(x1, 1) == Math.Round(x2, 1);
                    if (isVertical)
                    {
                        SetMaxLengthVertical(line, ref y1, ref y2);
                    }
                }

                if (ls.FixedLength.Flags.HasFlag(LineFixedLengthFlags.Horizontal))
                {
                    bool isHorizontal = Math.Round(y1, 1) == Math.Round(y2, 1);
                    if (isHorizontal)
                    {
                        SetMaxLengthHorizontal(line, ref x1, ref x2);
                    }
                }
            }
        }
Exemplo n.º 36
0
        /// <summary>
        /// 
        /// </summary>
        public override void ToStateTwo()
        {
            if (_p1HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p1HelperPoint);
                _p1HelperPoint = null;
            }

            if (_p2HelperPoint != null)
            {
                _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Remove(_p2HelperPoint);
                _p2HelperPoint = null;
            }

            _startLine = XLine.Create(0, 0, _style, null);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_startLine);
            _startHelperPoint = XPoint.Create(0, 0, _editor.Project.Options.PointShape);
            _editor.Project.CurrentContainer.HelperLayer.Shapes = _editor.Project.CurrentContainer.HelperLayer.Shapes.Add(_startHelperPoint);
        }
Exemplo n.º 37
0
 /// <summary>
 /// 
 /// </summary>
 /// <param name="line"></param>
 /// <param name="p"></param>
 /// <param name="treshold"></param>
 /// <param name="dx"></param>
 /// <param name="dy"></param>
 /// <returns></returns>
 public static bool HitTestLine(XLine line, Vector2 p, double treshold, double dx, double dy)
 {
     var a = new Vector2(line.Start.X + dx, line.Start.Y + dy);
     var b = new Vector2(line.End.X + dx, line.End.Y + dy);
     var nearest = MathHelpers.NearestPointOnLine(a, b, p);
     double distance = MathHelpers.Distance(p.X, p.Y, nearest.X, nearest.Y);
     return distance < treshold;
 }