private object ChooseActiveTarget(GraphHitRecord <TNode, TEdge, TEdgeRoute> hitRecord)
{
if (hitRecord.SubItem == null)
{
return(hitRecord.Item);
}
if (m_editableGraphContainer != null)
{
foreach (var itemInPath in hitRecord.HitPathInversed)
{
if (m_editableGraphContainer.CanMove(itemInPath, m_draggingNodes))
{
// favor subitem when it is expanded
return(itemInPath);
}
}
}
return(hitRecord.Item);
}
/// <summary>
/// Finds node and/or edge hit by the given point</summary>
/// <param name="graph">Graph to test</param>
/// <param name="priorityEdge">Graph edge to test before others</param>
/// <param name="p">Point to test</param>
/// <param name="g">Graphics object</param>
/// <returns>Hit record containing node and/or edge hit by the given point</returns>
public override GraphHitRecord <TElement, TWire, TPin> Pick(
IGraph <TElement, TWire, TPin> graph, TWire priorityEdge, PointF p, D2dGraphics g)
{
var hitRecord = base.Pick(graph, priorityEdge, p, g);
if (hitRecord.Node != null || hitRecord.Edge != null || hitRecord.Part != null)
{
return(hitRecord);
}
// check whether hits virtual parts of group pin
var group = graph.Cast <ICircuitGroupType <TElement, TWire, TPin> >();
foreach (var pin in group.Inputs.Concat(group.Info.HiddenInputPins))
{
var grpPin = pin.Cast <ICircuitGroupPin <TElement> >();
// check whether hit the thumbtack of a floating pin
var pinRect = GetThumbtackRect(grpPin, true);
if (pinRect.Contains(p))
{
var pinPart = new DiagramPin(pinRect);
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, pinPart));
}
// check whether hit the visibility check(eye icon)
var eyeRect = GetVisibilityCheckRect(grpPin, true);
if (eyeRect.Contains(p))
{
var eyePart = new DiagramVisibilityCheck(eyeRect);
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, eyePart));
}
// check whether hit the floating pin label-part
PointF grpPos = GetGroupPinLocation(grpPin, true);
RectangleF bounds = new RectangleF(grpPos.X, grpPos.Y, CircuitGroupPinInfo.FloatingPinBoxWidth, CircuitGroupPinInfo.FloatingPinBoxHeight);
SizeF nameSize = g.MeasureText(grpPin.Name, Theme.TextFormat);
RectangleF labelBounds = new RectangleF(bounds.Left, bounds.Bottom + Theme.PinMargin, (int)nameSize.Width, Theme.RowSpacing);
//labelBounds = GdiUtil.Transform(g.Transform, labelBounds);
var labelPart = new DiagramLabel(
new Rectangle((int)labelBounds.Left, (int)labelBounds.Top, (int)labelBounds.Width, (int)labelBounds.Height),
TextFormatFlags.SingleLine | TextFormatFlags.Left);
if (labelBounds.Contains(p))
{
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, labelPart));
}
// check whether hit the floating pin node
if (bounds.Contains(p))
{
var result = new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, null);
result.DefaultPart = labelPart;
return(result);
}
}
foreach (var pin in group.Outputs.Concat(group.Info.HiddenOutputPins))
{
var grpPin = pin.Cast <ICircuitGroupPin <TElement> >();
// check whether hit the thumbtack of a floating pin
var pinRect = GetThumbtackRect(grpPin, false);
if (pinRect.Contains(p))
{
var pinPart = new DiagramPin(pinRect);
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, pinPart));
}
// check whether hit the visibility check(eye icon)
var eyeRect = GetVisibilityCheckRect(grpPin, false);
if (eyeRect.Contains(p))
{
var eyePart = new DiagramVisibilityCheck(eyeRect);
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, eyePart));
}
// check whether hit the floating pin label-part
PointF grpPos = GetGroupPinLocation(grpPin, false);
RectangleF bounds = new RectangleF(grpPos.X, grpPos.Y, CircuitGroupPinInfo.FloatingPinBoxWidth, CircuitGroupPinInfo.FloatingPinBoxHeight);
SizeF nameSize = g.MeasureText(grpPin.Name, Theme.TextFormat);
RectangleF labelBounds = new RectangleF(bounds.Right - (int)nameSize.Width, bounds.Bottom + Theme.PinMargin, (int)nameSize.Width, Theme.RowSpacing);
//labelBounds = GdiUtil.Transform(g.Transform, labelBounds);
var labelPart = new DiagramLabel(
new Rectangle((int)labelBounds.Left, (int)labelBounds.Top, (int)labelBounds.Width, (int)labelBounds.Height),
TextFormatFlags.SingleLine | TextFormatFlags.Right);
if (labelBounds.Contains(p))
{
return(new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, labelPart));
}
// check whether hit the floating pin node
if (bounds.Contains(p))
{
var result = new GraphHitRecord <TElement, TWire, TPin>((TPin)grpPin, null);
result.DefaultPart = labelPart;
return(result);
}
}
return(hitRecord);
}
/// <summary>
/// Finds node and/or edge hit by the given point</summary>
/// <param name="graph">Graph to test</param>
/// <param name="priorityEdge">Graph edge to test before others</param>
/// <param name="p">Point to test in graph space</param>
/// <param name="g">D2dGraphics object</param>
/// <returns>Hit record containing node and/or edge hit by the given point</returns>
public override GraphHitRecord <TNode, TEdge, NumberedRoute> Pick(
IGraph <TNode, TEdge, NumberedRoute> graph,
TEdge priorityEdge,
PointF p,
D2dGraphics g)
{
TNode pickedNode = null;
TEdge pickedEdge = null;
NumberedRoute fromRoute = null;
NumberedRoute toRoute = null;
Vec2F v = new Vec2F(p.X, p.Y);
if (priorityEdge != null &&
Pick(priorityEdge, v))
{
pickedEdge = priorityEdge;
}
else
{
foreach (TEdge edge in graph.Edges.Reverse())
{
if (Pick(edge, v))
{
pickedEdge = edge;
break;
}
}
}
foreach (TNode node in graph.Nodes.Reverse())
{
if (Pick(node, p))
{
pickedNode = node;
CircleF boundary = GetBoundary(node);
boundary.Radius -= m_theme.PickTolerance;
bool onEdge = !boundary.Contains(v);
if (pickedEdge == null)
{
if (onEdge)
{
// edge of node can be source or destination
fromRoute = new NumberedRoute();
toRoute = new NumberedRoute();
}
}
else // hit on edge and node
{
if (onEdge)
{
if (pickedEdge.FromNode == pickedNode)
{
fromRoute = new NumberedRoute();
}
else if (pickedEdge.ToNode == pickedNode)
{
toRoute = new NumberedRoute();
}
}
}
break;
}
}
var result = new GraphHitRecord <TNode, TEdge, NumberedRoute>(pickedNode, pickedEdge, fromRoute, toRoute);
PointF clientP = Matrix3x2F.TransformPoint(g.Transform, p);
if (fromRoute != null)
{
result.FromRoutePos = clientP;
}
if (toRoute != null)
{
result.ToRoutePos = clientP;
}
if (pickedNode != null && pickedEdge == null)
{
// label is centered in entire node
RectangleF labelBounds = GetBounds(pickedNode, g);
float dHeight = labelBounds.Height - m_theme.TextFormat.FontHeight;
labelBounds = new RectangleF(
labelBounds.X, labelBounds.Y + dHeight / 2, labelBounds.Width, labelBounds.Height - dHeight);
if (labelBounds.Contains(p))
{
DiagramLabel label = new DiagramLabel(
Rectangle.Truncate(labelBounds),
TextFormatFlags.SingleLine |
TextFormatFlags.HorizontalCenter);
return
(new GraphHitRecord <TNode, TEdge, NumberedRoute>(pickedNode, label));
}
}
else if (pickedEdge != null)
{
RectangleF labelBounds = GetLabelBounds(pickedEdge, g);
DiagramLabel label = new DiagramLabel(
Rectangle.Truncate(labelBounds),
TextFormatFlags.SingleLine |
TextFormatFlags.HorizontalCenter);
if (labelBounds.Contains(p))
{
return
(new GraphHitRecord <TNode, TEdge, NumberedRoute>(pickedEdge, label));
}
}
return(result);
}
