public virtual float GetAngle(IDiagramLine link) { if (link == null) { return(0f); } IDiagramPort port1 = link.GetOtherPort(this); if (port1 == null) { if (((link.FromPort != null) && (link.FromPort.DiagramShape != null)) && (link.FromPort.DiagramShape.Bounds == this.Bounds)) { port1 = link.ToPort; } else if (((link.ToPort != null) && (link.ToPort.DiagramShape != null)) && (link.ToPort.DiagramShape.Bounds == this.Bounds)) { port1 = link.FromPort; } } if (port1 == null) { return(0f); } DiagramShape obj1 = port1.DiagramShape; if (obj1 == null) { return(0f); } PointF tf1 = obj1.Center; PointF tf2 = base.Center; Shapes.LineGraph link1 = link as Shapes.LineGraph; if ((link1 == null) && (link is TextLine)) { link1 = ((TextLine)link).RealLink; } if ((link1 != null) && (link1.PointsCount > 0)) { if (link1.FromPort == port1) { tf1 = link1.GetPoint(0); } else { tf1 = link1.GetPoint(link1.PointsCount - 1); } } return(StrokeGraph.GetAngle(tf1.X - tf2.X, tf1.Y - tf2.Y)); }
protected virtual void LayoutMidLabel(Dot.Utility.Media.Diagram.Shapes.DiagramShape childchanged) { DiagramShape obj1 = this.MidLabel; if (obj1 != null) { Shapes.LineGraph link1 = this.RealLink; int num1 = link1.PointsCount; if (num1 >= 2) { if ((link1.Style == StrokeGraphStyle.Bezier) && (num1 < 7)) { PointF tf5; PointF tf6; PointF tf1 = link1.GetPoint(0); PointF tf2 = link1.GetPoint(1); PointF tf3 = link1.GetPoint(num1 - 2); PointF tf4 = link1.GetPoint(num1 - 1); StrokeGraph.BezierMidPoint(tf1, tf2, tf3, tf4, out tf5, out tf6); this.PositionMidLabel(obj1, tf5, tf6); } else { int num2 = num1 / 2; if ((num1 % 2) == 0) { PointF tf7 = link1.GetPoint(num2 - 1); PointF tf8 = link1.GetPoint(num2); this.PositionMidLabel(obj1, tf7, tf8); } else { PointF tf9 = link1.GetPoint(num2 - 1); PointF tf10 = link1.GetPoint(num2); PointF tf11 = link1.GetPoint(num2 + 1); float single1 = tf10.X - tf9.X; float single2 = tf10.Y - tf9.Y; float single3 = tf11.X - tf10.X; float single4 = tf11.Y - tf10.Y; if (((single1 * single1) + (single2 * single2)) >= ((single3 * single3) + (single4 * single4))) { this.PositionMidLabel(obj1, tf9, tf10); } else { this.PositionMidLabel(obj1, tf10, tf11); } } } } } }
public override void LayoutChildren(Dot.Utility.Media.Diagram.Shapes.DiagramShape childchanged) { if (!base.Initializing) { Shapes.LineGraph link1 = this.RealLink; if (link1 != null) { int num1 = link1.PointsCount; if (num1 >= 2) { DiagramShape obj1 = this.FromLabel; if (obj1 != null) { PointF tf1 = link1.GetPoint(0); PointF tf2 = link1.GetPoint(1); if (num1 == 2) { this.PositionEndLabel(obj1, false, tf1, tf1, tf2); } else { this.PositionEndLabel(obj1, false, tf1, tf2, link1.GetPoint(2)); } } this.LayoutMidLabel(childchanged); obj1 = this.ToLabel; if (obj1 != null) { PointF tf3 = link1.GetPoint(num1 - 1); PointF tf4 = link1.GetPoint(num1 - 2); if (num1 == 2) { this.PositionEndLabel(obj1, true, tf3, tf3, tf4); } else { this.PositionEndLabel(obj1, true, tf3, tf4, link1.GetPoint(num1 - 3)); } } } } } }
public virtual void StartRelink(Shapes.IDiagramLine oldlink, Shapes.IDiagramPort oldport, PointF dc) { if (oldlink != null) { Shapes.DiagramShape obj1 = oldlink.DiagramShape; if ((obj1 != null) && (obj1.Layer != null)) { base.StartTransaction(); this.myLinkingNew = false; this.OriginalEndPort = oldport; this.Link = oldlink; if (oldlink.ToPort == oldport) { this.Forwards = true; this.OriginalStartPort = oldlink.FromPort; PointF tf1 = dc; if (this.OriginalStartPort != null) { tf1 = this.OriginalStartPort.DiagramShape.Center; } else if (oldlink is Shapes.LineGraph) { Shapes.LineGraph link1 = (Shapes.LineGraph)oldlink; if (link1.PointsCount > 0) { tf1 = link1.GetPoint(0); } } else if (oldlink is Shapes.TextLine) { Shapes.TextLine link2 = (Shapes.TextLine)oldlink; if (link2.RealLink.PointsCount > 0) { tf1 = link2.RealLink.GetPoint(0); } } this.StartPort = this.CreateTemporaryPort(this.OriginalStartPort, tf1, false, false); oldlink.FromPort = this.StartPort; this.EndPort = this.CreateTemporaryPort(this.OriginalEndPort, dc, true, true); oldlink.ToPort = this.EndPort; } else if (oldlink.FromPort == oldport) { this.Forwards = false; this.OriginalStartPort = oldlink.ToPort; PointF tf2 = dc; if (this.OriginalStartPort != null) { tf2 = this.OriginalStartPort.DiagramShape.Center; } else if (oldlink is Shapes.LineGraph) { Shapes.LineGraph link3 = (Shapes.LineGraph)oldlink; if (link3.PointsCount > 0) { tf2 = link3.GetPoint(link3.PointsCount - 1); } } else if (oldlink is Shapes.TextLine) { Shapes.TextLine link4 = (Shapes.TextLine)oldlink; if (link4.RealLink.PointsCount > 0) { tf2 = link4.RealLink.GetPoint(link4.RealLink.PointsCount - 1); } } this.StartPort = this.CreateTemporaryPort(this.OriginalStartPort, tf2, true, false); oldlink.ToPort = this.StartPort; this.EndPort = this.CreateTemporaryPort(this.OriginalEndPort, dc, false, true); oldlink.FromPort = this.EndPort; } base.View.Cursor = Cursors.Hand; } } }