public void UpdateArrow(Arrow a, bool ignoredDirection)
{
if (_inc == ArrowAnchor.NoAnchor)
CalculateAnchors();
// Temporarily disable routing
bool route = a.AutoRoute;
a.SilentAutoRoute = false;
// Preserve arrow anchoring
int orgnAnchor = a.OrgnAnchor;
int destAnchor = a.DestAnchor;
switch(Type)
{
case TreeLayoutType.Cascading:
{
switch(ArrowStyle)
{
case TreeLayoutArrowType.Cascading2:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Cascading;
bool v = false;
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
if(!(ReversedArrows ^ ignoredDirection))
v = true;
}
else
{
if(ReversedArrows ^ ignoredDirection)
v = true;
}
if (v)
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Vertical;
else
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Horizontal;
a.SegmentCount = 2;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
PointF ptMiddle = a.Points[1];
PointF p0 = (!(ReversedArrows ^ ignoredDirection) ? a.Points[0] : a.Points[2]);
PointF p2 = (!(ReversedArrows ^ ignoredDirection) ? a.Points[2] : a.Points[0]);
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
ptMiddle.X = p0.X;
ptMiddle.Y = p2.Y;
}
else
{
ptMiddle.X = p2.X;
ptMiddle.Y = p0.Y;
}
a.Points[1] = ptMiddle;
a.updateArrowHeads();
}
break;
case TreeLayoutArrowType.Cascading3:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Cascading;
a.SegmentCount = 3;
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Horizontal;
else
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Vertical;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
PointF ptMiddle1 = a.Points[1];
PointF ptMiddle2 = a.Points[2];
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
ptMiddle1.X = ptMiddle2.X =
(a.Points[0].X + a.Points[3].X)/2;
ptMiddle1.Y = a.Points[0].Y;
ptMiddle2.Y = a.Points[3].Y;
}
else
{
ptMiddle1.Y = ptMiddle2.Y =
(a.Points[0].Y + a.Points[3].Y)/2;
ptMiddle1.X = a.Points[0].X;
ptMiddle2.X = a.Points[3].X;
}
a.Points[1] = ptMiddle1;
a.Points[2] = ptMiddle2;
a.updateArrowHeads();
}
break;
case TreeLayoutArrowType.Rounded:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Bezier;
a.SegmentCount = 1;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
PointF ptMiddle = a.Points[1];
PointF p0 = (!(ReversedArrows ^ ignoredDirection) ? a.Points[0] : a.Points[3]);
PointF p3 = (!(ReversedArrows ^ ignoredDirection) ? a.Points[3] : a.Points[0]);
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
ptMiddle.X = p0.X;
ptMiddle.Y = p3.Y;
}
else
{
ptMiddle.X = p3.X;
ptMiddle.Y = p0.Y;
}
a.Points[1] = ptMiddle;
a.Points[2] = ptMiddle;
a.updateArrowHeads();
}
break;
case TreeLayoutArrowType.Straight:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Polyline;
a.SegmentCount = 1;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
}
break;
}
}
break;
case TreeLayoutType.Centered:
{
switch(ArrowStyle)
{
case TreeLayoutArrowType.Cascading2:
// Centered tree does not support
// 2-segmented perpendicular arrows.
break;
case TreeLayoutArrowType.Cascading3:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Cascading;
a.SegmentCount = 3;
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Horizontal;
else
a.CascadeOrientation = MindFusion.FlowChartX.Orientation.Vertical;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
PointF ptMiddle1 = a.Points[1];
PointF ptMiddle2 = a.Points[2];
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
ptMiddle1.X = ptMiddle2.X =
(a.Points[0].X + a.Points[3].X)/2;
ptMiddle1.Y = a.Points[0].Y;
ptMiddle2.Y = a.Points[3].Y;
}
else
{
ptMiddle1.Y = ptMiddle2.Y =
(a.Points[0].Y + a.Points[3].Y)/2;
ptMiddle1.X = a.Points[0].X;
ptMiddle2.X = a.Points[3].X;
}
a.Points[1] = ptMiddle1;
a.Points[2] = ptMiddle2;
a.updateArrowHeads();
}
break;
case TreeLayoutArrowType.Rounded:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Bezier;
a.SegmentCount = 1;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
PointF ptMiddle1 = a.Points[1];
PointF ptMiddle2 = a.Points[2];
if( Direction == TreeLayoutDirection.LeftToRight ||
Direction == TreeLayoutDirection.RightToLeft)
{
ptMiddle1.X = a.Points[3].X;
ptMiddle2.X = a.Points[0].X;
ptMiddle1.Y = a.Points[0].Y;
ptMiddle2.Y = a.Points[3].Y;
}
else
{
ptMiddle1.X = a.Points[0].X;
ptMiddle2.X = a.Points[3].X;
ptMiddle1.Y = a.Points[3].Y;
ptMiddle2.Y = a.Points[0].Y;
}
a.Points[1] = ptMiddle1;
a.Points[2] = ptMiddle2;
a.updateArrowHeads();
}
break;
case TreeLayoutArrowType.Straight:
{
a.Style = MindFusion.FlowChartX.ArrowStyle.Polyline;
a.SegmentCount = 1;
// Adjust the arrow which connects the boxes.
if (ignoredDirection)
a.adjustEnds(_inc, _outg);
else
a.adjustEnds(_outg, _inc);
SetAnchors(a, orgnAnchor, destAnchor);
}
break;
}
}
break;
case TreeLayoutType.Radial:
{
// Ignore the arrow style
a.arrangePoints(_anchoring);
}
break;
}
a.SilentAutoRoute = route;
}
