Exemple #1
0
 private static void RenderTwoStrokeNodes(StreamGeometryContext context, StrokeNode strokeNodePrevious, Rect strokeNodePreviousBounds, StrokeNode strokeNodeCurrent, Rect strokeNodeCurrentBounds, List <Point> pointBuffer1, List <Point> pointBuffer2, List <Point> pointBuffer3)
 {
     if (FuzzyContains(strokeNodePreviousBounds, strokeNodeCurrentBounds, 70.0) != RectCompareResult.NoItersection)
     {
         strokeNodePrevious.GetContourPoints(pointBuffer1);
         AddFigureToStreamGeometryContext(context, pointBuffer1, strokeNodePrevious.IsEllipse);
         Quad connectingQuad = strokeNodeCurrent.GetConnectingQuad();
         if (!connectingQuad.IsEmpty)
         {
             pointBuffer3.Add(connectingQuad.A);
             pointBuffer3.Add(connectingQuad.B);
             pointBuffer3.Add(connectingQuad.C);
             pointBuffer3.Add(connectingQuad.D);
             AddFigureToStreamGeometryContext(context, pointBuffer3, isBezierFigure: false);
         }
         strokeNodeCurrent.GetContourPoints(pointBuffer2);
         AddFigureToStreamGeometryContext(context, pointBuffer2, strokeNodeCurrent.IsEllipse);
     }
     else
     {
         strokeNodeCurrent.GetPointsAtStartOfSegment(pointBuffer1, pointBuffer2);
         strokeNodeCurrent.GetPointsAtEndOfSegment(pointBuffer1, pointBuffer2);
         ReverseDCPointsRenderAndClear(context, pointBuffer1, pointBuffer2, pointBuffer3, strokeNodeCurrent.IsEllipse, clear: false);
     }
 }
Exemple #2
0
        internal bool HitTest(StrokeNode hitNode)
        {
            if (!IsValid || !hitNode.IsValid)
            {
                return(false);
            }
            IEnumerable <ContourSegment> contourSegments = hitNode.GetContourSegments();

            return(_operations.HitTest(_lastNode, _thisNode, ConnectingQuad, contourSegments));
        }
Exemple #3
0
        internal StrokeFIndices CutTest(StrokeNode hitNode)
        {
            if (!IsValid || !hitNode.IsValid)
            {
                return(StrokeFIndices.Empty);
            }
            IEnumerable <ContourSegment> contourSegments = hitNode.GetContourSegments();
            StrokeFIndices strokeFIndices = _operations.CutTest(_lastNode, _thisNode, ConnectingQuad, contourSegments);

            if (_index != 0)
            {
                return(BindFIndices(strokeFIndices));
            }
            return(strokeFIndices);
        }
Exemple #4
0
        internal static void CalcGeometryAndBoundsWithTransform(StrokeNodeIterator iterator, DrawingAttributes drawingAttributes, MatrixTypes stylusTipMatrixType, bool calculateBounds, out Geometry geometry, out Rect bounds)
        {
            StreamGeometry streamGeometry = new StreamGeometry();

            streamGeometry.FillRule = FillRule.Nonzero;
            StreamGeometryContext streamGeometryContext = streamGeometry.Open();

            geometry = streamGeometry;
            bounds   = Rect.Empty;
            try
            {
                List <Point> list = new List <Point>(iterator.Count * 4);
                int          num  = iterator.Count * 2;
                int          num2 = 0;
                for (int i = 0; i < num; i++)
                {
                    list.Add(new Point(0.0, 0.0));
                }
                List <Point> list2     = new List <Point>();
                double       lastAngle = 0.0;
                bool         flag      = false;
                Rect         rect      = new Rect(0.0, 0.0, 0.0, 0.0);
                for (int j = 0; j < iterator.Count; j++)
                {
                    StrokeNode strokeNode = iterator[j];
                    Rect       bounds2    = strokeNode.GetBounds();
                    if (calculateBounds)
                    {
                        bounds.Union(bounds2);
                    }
                    double num3 = Math.Abs(GetAngleDeltaFromLast(strokeNode.PreviousPosition, strokeNode.Position, ref lastAngle));
                    double num4 = 45.0;
                    if (stylusTipMatrixType == MatrixTypes.TRANSFORM_IS_UNKNOWN)
                    {
                        num4 = 10.0;
                    }
                    else if (bounds2.Height > 40.0 || bounds2.Width > 40.0)
                    {
                        num4 = 20.0;
                    }
                    bool   flag2 = num3 > num4 && num3 < 360.0 - num4;
                    double val   = rect.Height * rect.Width;
                    double val2  = bounds2.Height * bounds2.Width;
                    bool   flag3 = false;
                    if (Math.Min(val, val2) / Math.Max(val, val2) <= 0.7)
                    {
                        flag3 = true;
                    }
                    rect = bounds2;
                    if ((j <= 1 || j >= iterator.Count - 2) | flag2 | flag3)
                    {
                        if (flag2 && !flag && j > 1 && j < iterator.Count - 1)
                        {
                            list2.Clear();
                            strokeNode.GetPreviousContourPoints(list2);
                            AddFigureToStreamGeometryContext(streamGeometryContext, list2, strokeNode.IsEllipse);
                            flag = true;
                        }
                        list2.Clear();
                        strokeNode.GetContourPoints(list2);
                        AddFigureToStreamGeometryContext(streamGeometryContext, list2, strokeNode.IsEllipse);
                    }
                    if (!flag2)
                    {
                        flag = false;
                    }
                    Quad connectingQuad = strokeNode.GetConnectingQuad();
                    if (!connectingQuad.IsEmpty)
                    {
                        list[num2++] = connectingQuad.A;
                        list[num2++] = connectingQuad.B;
                        list.Add(connectingQuad.D);
                        list.Add(connectingQuad.C);
                    }
                    if (strokeNode.IsLastNode && num2 > 0)
                    {
                        int num5 = iterator.Count * 2;
                        int num6 = list.Count - 1;
                        int num7 = num2;
                        for (int k = num5; k <= num6; k++)
                        {
                            list[num7] = list[k];
                            num7++;
                        }
                        int num8 = num5 - num2;
                        list.RemoveRange(num6 - num8 + 1, num8);
                        int num9  = num2;
                        int num10 = list.Count - 1;
                        while (num9 < num10)
                        {
                            Point value = list[num9];
                            list[num9]  = list[num10];
                            list[num10] = value;
                            num9++;
                            num10--;
                        }
                        AddFigureToStreamGeometryContext(streamGeometryContext, list, isBezierFigure: false);
                    }
                }
            }
            finally
            {
                streamGeometryContext.Close();
                geometry.Freeze();
            }
        }
Exemple #5
0
        internal static void CalcGeometryAndBounds(StrokeNodeIterator iterator, DrawingAttributes drawingAttributes, bool calculateBounds, out Geometry geometry, out Rect bounds)
        {
            Matrix stylusTipTransform = drawingAttributes.StylusTipTransform;

            if (stylusTipTransform != Matrix.Identity)
            {
                CalcGeometryAndBoundsWithTransform(iterator, drawingAttributes, MatrixTypes.TRANSFORM_IS_TRANSLATION, calculateBounds, out geometry, out bounds);
                return;
            }
            StreamGeometry streamGeometry = new StreamGeometry();

            streamGeometry.FillRule = FillRule.Nonzero;
            StreamGeometryContext streamGeometryContext = streamGeometry.Open();

            geometry = streamGeometry;
            Rect rect = bounds = Rect.Empty;

            try
            {
                StrokeNode strokeNode         = default(StrokeNode);
                StrokeNode strokeNodePrevious = default(StrokeNode);
                StrokeNode strokeNode2        = default(StrokeNode);
                StrokeNode strokeNode3        = default(StrokeNode);
                Rect       rect2 = rect;
                Rect       rect3 = rect;
                Rect       rect4 = rect;
                double     num   = 95.0;
                double     num2  = Math.Max(drawingAttributes.Height, drawingAttributes.Width);
                num += Math.Min(4.99999, num2 / 20.0 * 5.0);
                double       lastAngle      = double.MinValue;
                bool         flag           = true;
                bool         isEllipse      = drawingAttributes.StylusTip == StylusTip.Ellipse;
                bool         ignorePressure = drawingAttributes.IgnorePressure;
                List <Point> list           = new List <Point>();
                List <Point> list2          = new List <Point>();
                List <Point> list3          = new List <Point>(4);
                int          count          = iterator.Count;
                int          num3           = 0;
                int          previousIndex  = -1;
                while (num3 < count)
                {
                    if (!strokeNodePrevious.IsValid)
                    {
                        if (!strokeNode2.IsValid)
                        {
                            strokeNodePrevious = iterator[num3++, previousIndex++];
                            rect2 = strokeNodePrevious.GetBounds();
                            continue;
                        }
                        strokeNodePrevious = strokeNode2;
                        rect2       = rect3;
                        strokeNode2 = strokeNode;
                    }
                    if (!strokeNode2.IsValid)
                    {
                        if (!strokeNode3.IsValid)
                        {
                            strokeNode2 = iterator[num3++, previousIndex];
                            rect3       = strokeNode2.GetBounds();
                            switch (FuzzyContains(rect3, rect2, flag ? 99.99999 : num))
                            {
                            case RectCompareResult.Rect1ContainsRect2:
                                strokeNodePrevious = iterator[num3 - 1, strokeNodePrevious.Index - 1];
                                rect2         = Rect.Union(rect3, rect2);
                                strokeNode2   = strokeNode;
                                previousIndex = num3 - 1;
                                break;

                            case RectCompareResult.Rect2ContainsRect1:
                                strokeNode2 = strokeNode;
                                break;

                            default:
                                previousIndex = num3 - 1;
                                break;
                            }
                            continue;
                        }
                        strokeNode2 = strokeNode3;
                        rect3       = rect4;
                        strokeNode3 = strokeNode;
                    }
                    if (!strokeNode3.IsValid)
                    {
                        strokeNode3 = iterator[num3++, previousIndex];
                        rect4       = strokeNode3.GetBounds();
                        RectCompareResult rectCompareResult  = FuzzyContains(rect4, rect3, flag ? 99.99999 : num);
                        RectCompareResult rectCompareResult2 = FuzzyContains(rect4, rect2, flag ? 99.99999 : num);
                        if (flag && rectCompareResult == RectCompareResult.Rect1ContainsRect2 && rectCompareResult2 == RectCompareResult.Rect1ContainsRect2)
                        {
                            if (list.Count > 0)
                            {
                                strokeNode2.GetPointsAtEndOfSegment(list, list2);
                                ReverseDCPointsRenderAndClear(streamGeometryContext, list, list2, list3, isEllipse, clear: true);
                            }
                            strokeNodePrevious = iterator[num3 - 1, strokeNodePrevious.Index - 1];
                            rect2         = strokeNodePrevious.GetBounds();
                            strokeNode2   = strokeNode;
                            strokeNode3   = strokeNode;
                            previousIndex = num3 - 1;
                            continue;
                        }
                        switch (rectCompareResult)
                        {
                        case RectCompareResult.Rect1ContainsRect2:
                            strokeNode3 = iterator[num3 - 1, strokeNode2.Index - 1];
                            if (!strokeNode3.GetConnectingQuad().IsEmpty)
                            {
                                strokeNode2   = strokeNode3;
                                rect3         = Rect.Union(rect4, rect3);
                                previousIndex = num3 - 1;
                            }
                            strokeNode3 = strokeNode;
                            lastAngle   = double.MinValue;
                            continue;

                        case RectCompareResult.Rect2ContainsRect1:
                            strokeNode3 = strokeNode;
                            continue;
                        }
                        previousIndex = num3 - 1;
                    }
                    bool flag2 = rect2.IntersectsWith(rect4);
                    if (calculateBounds)
                    {
                        bounds.Union(rect3);
                    }
                    if (list.Count == 0)
                    {
                        if (calculateBounds)
                        {
                            bounds.Union(rect2);
                        }
                        if (flag && flag2)
                        {
                            strokeNodePrevious.GetContourPoints(list3);
                            AddFigureToStreamGeometryContext(streamGeometryContext, list3, strokeNodePrevious.IsEllipse);
                            list3.Clear();
                        }
                        strokeNode2.GetPointsAtStartOfSegment(list, list2);
                        flag = false;
                    }
                    if (lastAngle == double.MinValue)
                    {
                        lastAngle = GetAngleBetween(strokeNodePrevious.Position, strokeNode2.Position);
                    }
                    double angleDeltaFromLast = GetAngleDeltaFromLast(strokeNode2.Position, strokeNode3.Position, ref lastAngle);
                    bool   flag3 = Math.Abs(angleDeltaFromLast) > 90.0 && Math.Abs(angleDeltaFromLast) < 270.0;
                    bool   flag4 = flag2 && !ignorePressure && strokeNode3.PressureFactor != 1f && Math.Abs(angleDeltaFromLast) > 30.0 && Math.Abs(angleDeltaFromLast) < 330.0;
                    double num4  = rect3.Height * rect3.Width;
                    double num5  = rect4.Height * rect4.Width;
                    bool   flag5 = num4 != num5 || num4 != rect2.Height * rect2.Width;
                    bool   flag6 = false;
                    if (flag2 && flag5 && Math.Min(num4, num5) / Math.Max(num4, num5) <= 0.9)
                    {
                        flag6 = true;
                    }
                    if (flag5 || angleDeltaFromLast != 0.0 || num3 >= count)
                    {
                        if ((flag2 && (flag4 | flag6)) | flag3)
                        {
                            strokeNode2.GetPointsAtEndOfSegment(list, list2);
                            ReverseDCPointsRenderAndClear(streamGeometryContext, list, list2, list3, isEllipse, clear: true);
                            if (flag6)
                            {
                                strokeNode2.GetContourPoints(list3);
                                AddFigureToStreamGeometryContext(streamGeometryContext, list3, strokeNode2.IsEllipse);
                                list3.Clear();
                            }
                        }
                        else
                        {
                            strokeNode3.GetPointsAtMiddleSegment(strokeNode2, angleDeltaFromLast, list, list2, out bool missingIntersection);
                            if (missingIntersection)
                            {
                                strokeNode2.GetPointsAtEndOfSegment(list, list2);
                                ReverseDCPointsRenderAndClear(streamGeometryContext, list, list2, list3, isEllipse, clear: true);
                            }
                        }
                    }
                    strokeNodePrevious = strokeNode;
                    rect2 = rect;
                }
                if (strokeNodePrevious.IsValid)
                {
                    if (strokeNode2.IsValid)
                    {
                        if (calculateBounds)
                        {
                            bounds.Union(rect2);
                            bounds.Union(rect3);
                        }
                        if (list.Count > 0)
                        {
                            strokeNode2.GetPointsAtEndOfSegment(list, list2);
                            ReverseDCPointsRenderAndClear(streamGeometryContext, list, list2, list3, isEllipse, clear: false);
                        }
                        else
                        {
                            RenderTwoStrokeNodes(streamGeometryContext, strokeNodePrevious, rect2, strokeNode2, rect3, list, list2, list3);
                        }
                    }
                    else
                    {
                        if (calculateBounds)
                        {
                            bounds.Union(rect2);
                        }
                        strokeNodePrevious.GetContourPoints(list);
                        AddFigureToStreamGeometryContext(streamGeometryContext, list, strokeNodePrevious.IsEllipse);
                    }
                }
                else if (strokeNode2.IsValid && strokeNode3.IsValid)
                {
                    if (calculateBounds)
                    {
                        bounds.Union(rect3);
                        bounds.Union(rect4);
                    }
                    if (list.Count > 0)
                    {
                        strokeNode3.GetPointsAtEndOfSegment(list, list2);
                        ReverseDCPointsRenderAndClear(streamGeometryContext, list, list2, list3, isEllipse, clear: false);
                        if (FuzzyContains(rect4, rect3, 70.0) != RectCompareResult.NoItersection)
                        {
                            strokeNode3.GetContourPoints(list3);
                            AddFigureToStreamGeometryContext(streamGeometryContext, list3, strokeNode3.IsEllipse);
                        }
                    }
                    else
                    {
                        RenderTwoStrokeNodes(streamGeometryContext, strokeNode2, rect3, strokeNode3, rect4, list, list2, list3);
                    }
                }
            }
            finally
            {
                streamGeometryContext.Close();
                geometry.Freeze();
            }
        }
Exemple #6
0
        internal void GetPointsAtMiddleSegment(StrokeNode previous, double angleBetweenNodes, List <Point> abPoints, List <Point> dcPoints, out bool missingIntersection)
        {
            missingIntersection = false;
            if (!IsValid || !previous.IsValid)
            {
                return;
            }
            Quad connectingQuad = previous.ConnectingQuad;

            if (connectingQuad.IsEmpty)
            {
                return;
            }
            Quad connectingQuad2 = ConnectingQuad;

            if (connectingQuad2.IsEmpty)
            {
                return;
            }
            if (IsEllipse)
            {
                Rect nodeBounds  = _operations.GetNodeBounds(previous._lastNode);
                Rect nodeBounds2 = _operations.GetNodeBounds(_lastNode);
                Rect nodeBounds3 = _operations.GetNodeBounds(_thisNode);
                if (angleBetweenNodes == 0.0 || (connectingQuad.B == connectingQuad2.A && connectingQuad.C == connectingQuad2.D))
                {
                    abPoints.Add(connectingQuad.B);
                    dcPoints.Add(connectingQuad.C);
                    return;
                }
                if (angleBetweenNodes > 0.0)
                {
                    if (connectingQuad.B == connectingQuad2.A)
                    {
                        abPoints.Add(connectingQuad.B);
                    }
                    else
                    {
                        Point intersection = GetIntersection(connectingQuad.A, connectingQuad.B, connectingQuad2.A, connectingQuad2.B);
                        Rect  rect         = Rect.Union(nodeBounds, nodeBounds2);
                        rect.Inflate(1.0, 1.0);
                        if (!rect.Contains(intersection))
                        {
                            missingIntersection = true;
                            return;
                        }
                        abPoints.Add(intersection);
                    }
                    if (connectingQuad.C == connectingQuad2.D)
                    {
                        dcPoints.Add(connectingQuad.C);
                        return;
                    }
                    dcPoints.Add(connectingQuad.C);
                    dcPoints.Add(new Point(nodeBounds2.Width, nodeBounds2.Height));
                    dcPoints.Add(StrokeRenderer.ArcToMarker);
                    dcPoints.Add(connectingQuad2.D);
                    return;
                }
                if (connectingQuad.C == connectingQuad2.D)
                {
                    dcPoints.Add(connectingQuad.C);
                }
                else
                {
                    Point intersection2 = GetIntersection(connectingQuad.D, connectingQuad.C, connectingQuad2.D, connectingQuad2.C);
                    Rect  rect2         = Rect.Union(nodeBounds, nodeBounds2);
                    rect2.Inflate(1.0, 1.0);
                    if (!rect2.Contains(intersection2))
                    {
                        missingIntersection = true;
                        return;
                    }
                    dcPoints.Add(intersection2);
                }
                if (connectingQuad.B == connectingQuad2.A)
                {
                    abPoints.Add(connectingQuad.B);
                    return;
                }
                abPoints.Add(connectingQuad.B);
                abPoints.Add(StrokeRenderer.ArcToMarker);
                abPoints.Add(new Point(nodeBounds2.Width, nodeBounds2.Height));
                abPoints.Add(connectingQuad2.A);
                return;
            }
            int num  = -1;
            int num2 = -1;
            int num3 = -1;
            int num4 = -1;

            Vector[] vertices = _operations.GetVertices();
            double   scalar   = _lastNode.PressureFactor;

            for (int i = 0; i < vertices.Length; i++)
            {
                Point point = _lastNode.Position + vertices[i % vertices.Length] * scalar;
                if (point == connectingQuad2.A)
                {
                    num = i;
                }
                if (point == connectingQuad.B)
                {
                    num2 = i;
                }
                if (point == connectingQuad.C)
                {
                    num3 = i;
                }
                if (point == connectingQuad2.D)
                {
                    num4 = i;
                }
            }
            if (num == -1 || num2 == -1 || num3 == -1 || num4 == -1)
            {
                return;
            }
            Rect nodeBounds4 = _operations.GetNodeBounds(_thisNode);

            if (num == num2)
            {
                if (!nodeBounds4.Contains(connectingQuad.B))
                {
                    abPoints.Add(connectingQuad.B);
                }
            }
            else if ((num == 0 && num2 == 3) || ((num != 3 || num2 != 0) && num > num2))
            {
                if (!nodeBounds4.Contains(connectingQuad.B))
                {
                    abPoints.Add(connectingQuad.B);
                }
                if (!nodeBounds4.Contains(connectingQuad2.A))
                {
                    abPoints.Add(connectingQuad2.A);
                }
            }
            else
            {
                Point intersection3 = GetIntersection(connectingQuad.A, connectingQuad.B, connectingQuad2.A, connectingQuad2.B);
                Rect  rect3         = Rect.Union(_operations.GetNodeBounds(previous._lastNode), _operations.GetNodeBounds(_lastNode));
                rect3.Inflate(1.0, 1.0);
                if (!rect3.Contains(intersection3))
                {
                    missingIntersection = true;
                    return;
                }
                abPoints.Add(intersection3);
            }
            if (num3 == num4)
            {
                if (!nodeBounds4.Contains(connectingQuad.C))
                {
                    dcPoints.Add(connectingQuad.C);
                }
            }
            else if ((num3 == 0 && num4 == 3) || ((num3 != 3 || num4 != 0) && num3 > num4))
            {
                if (!nodeBounds4.Contains(connectingQuad.C))
                {
                    dcPoints.Add(connectingQuad.C);
                }
                if (!nodeBounds4.Contains(connectingQuad2.D))
                {
                    dcPoints.Add(connectingQuad2.D);
                }
            }
            else
            {
                Point intersection4 = GetIntersection(connectingQuad.D, connectingQuad.C, connectingQuad2.D, connectingQuad2.C);
                Rect  rect4         = Rect.Union(_operations.GetNodeBounds(previous._lastNode), _operations.GetNodeBounds(_lastNode));
                rect4.Inflate(1.0, 1.0);
                if (rect4.Contains(intersection4))
                {
                    dcPoints.Add(intersection4);
                }
                else
                {
                    missingIntersection = true;
                }
            }
        }