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));
}
}
}
}
}
}
protected virtual void PositionEndLabel(Dot.Utility.Media.Diagram.Shapes.DiagramShape lab, bool atEnd, PointF a, PointF b, PointF c)
{
if ((!atEnd && this.FromLabelCentered) || (atEnd && this.ToLabelCentered))
{
if (base.IsApprox(a.X, b.X))
{
if (a.Y < b.Y)
{
lab.SetSpotLocation(0x20, a);
}
else
{
lab.SetSpotLocation(0x80, a);
}
}
else if (base.IsApprox(a.Y, b.Y))
{
if (a.X < b.X)
{
lab.SetSpotLocation(0x100, a);
}
else
{
lab.SetSpotLocation(0x40, a);
}
}
else if (a.X < b.X)
{
if (a.Y < b.Y)
{
lab.SetSpotLocation(2, a);
}
else
{
lab.SetSpotLocation(0x10, a);
}
}
else if (a.Y < b.Y)
{
lab.SetSpotLocation(8, a);
}
else
{
lab.SetSpotLocation(4, a);
}
}
else if (a.X < b.X)
{
if (b.Y <= c.Y)
{
lab.SetSpotLocation(0x10, a);
}
else
{
lab.SetSpotLocation(2, a);
}
}
else if (a.X > b.X)
{
if (b.Y <= c.Y)
{
lab.SetSpotLocation(8, a);
}
else
{
lab.SetSpotLocation(4, a);
}
}
else if (a.Y < b.Y)
{
if (b.X <= c.X)
{
lab.SetSpotLocation(4, a);
}
else
{
lab.SetSpotLocation(2, a);
}
}
else if (a.Y > b.Y)
{
if (b.X <= c.X)
{
lab.SetSpotLocation(8, a);
}
else
{
lab.SetSpotLocation(0x10, a);
}
}
else if (b.X <= c.X)
{
if (b.Y <= c.Y)
{
lab.SetSpotLocation(0x10, b);
}
else
{
lab.SetSpotLocation(2, b);
}
}
else if (b.Y <= c.Y)
{
lab.SetSpotLocation(8, b);
}
else
{
lab.SetSpotLocation(4, b);
}
}
public override void AddSelectionHandles(DiagramSelection sel, Dot.Utility.Media.Diagram.Shapes.DiagramShape selectedObj)
{
}
public SelectionEventArgs(Dot.Utility.Media.Diagram.Shapes.DiagramShape DiagramShape)
{
this._DiagramShape = DiagramShape;
}
public DiagramShapeEventArgs(Dot.Utility.Media.Diagram.Shapes.DiagramShape obj, InputEventArgs evt)
: base(evt)
{
this.myObject = obj;
}
