public ConnectionPoint(ActivityDesigner associatedDesigner, DesignerEdges designerEdge, int connectionIndex)
{
if (associatedDesigner == null)
{
throw new ArgumentNullException("associatedDesigner");
}
if ((connectionIndex < 0) || (connectionIndex >= associatedDesigner.GetConnections(designerEdge).Count))
{
throw new ArgumentException(DR.GetString("Error_ConnectionPoint", new object[0]), "connectionIndex");
}
this.associatedDesigner = associatedDesigner;
this.designerEdge = designerEdge;
this.connectionIndex = connectionIndex;
}
/// <summary>
/// Gets the array of rectangles bounding the connectors
/// </summary>
protected internal virtual Rectangle[] GetConnectors()
{
if (ActiveDesigner != this)
{
return new Rectangle[] { }
}
;
if (!Expanded)
{
return new Rectangle[] { }
}
;
CompositeDesignerTheme designerTheme = DesignerTheme as CompositeDesignerTheme;
if (designerTheme == null)
{
return new Rectangle[] { }
}
;
//Calculate no of connectors for the container; if there is no activityDesigner then we display single connector
ReadOnlyCollection <ActivityDesigner> containedDesigners = ContainedDesigners;
int connectorCount = (containedDesigners.Count > 0) ? (2 + (containedDesigners.Count - 1)) : 1;
Rectangle[] connectorBounds = new Rectangle[connectorCount];
ReadOnlyCollection <Point> containerConnections = GetInnerConnections(DesignerEdges.Top | DesignerEdges.Bottom);
Point containerStartConnection = new Point();
Point containerEndConnection = new Point();
if (containerConnections != null && containerConnections.Count > 0)
{
containerStartConnection = containerConnections[0];
containerEndConnection = containerConnections[containerConnections.Count - 1];
}
if (containedDesigners.Count > 0)
{
//Add the first connector. This will be from bitmap bottom to activityDesigner start
ActivityDesigner startDesigner = containedDesigners[0] as ActivityDesigner;
ReadOnlyCollection <Point> startDesignerConnections = startDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
if (startDesignerConnections.Count == 0)
{
Rectangle startDesignerBounds = startDesigner.Bounds;
List <Point> connections = new List <Point>();
connections.Add(new Point(startDesignerBounds.Left + startDesignerBounds.Width / 2, startDesignerBounds.Top));
connections.Add(new Point(startDesignerBounds.Left + startDesignerBounds.Width / 2, startDesignerBounds.Bottom));
startDesignerConnections = connections.AsReadOnly();
}
connectorBounds[0].Location = new Point(containerStartConnection.X - ((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2, containerStartConnection.Y);
connectorBounds[0].Size = new Size(((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0), startDesignerConnections[0].Y - containerStartConnection.Y);
//Add rest of the points
for (int i = 0; i < containedDesigners.Count - 1; i++)
{
ActivityDesigner designerFrom = containedDesigners[i];
ActivityDesigner designerTo = containedDesigners[i + 1];
if (designerFrom != null && designerTo != null)
{
ReadOnlyCollection <Point> designerFromConnections = designerFrom.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
int designerFromPointCount = designerFromConnections.Count;
ReadOnlyCollection <Point> designerToConnections = designerTo.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
connectorBounds[i + 1].Location = new Point(designerFromConnections[designerFromPointCount - 1].X - ((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2, designerFromConnections[designerFromPointCount - 1].Y);
connectorBounds[i + 1].Size = new Size(((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0), designerToConnections[0].Y - designerFromConnections[designerFromPointCount - 1].Y);
}
}
//Add the last connector
ActivityDesigner endDesigner = containedDesigners[containedDesigners.Count - 1];
ReadOnlyCollection <Point> endDesignerConnections = endDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
if (endDesignerConnections.Count == 0)
{
Rectangle endDesignerBounds = endDesigner.Bounds;
List <Point> connections = new List <Point>();
connections.Add(new Point(endDesignerBounds.Left + endDesignerBounds.Width / 2, endDesignerBounds.Top));
connections.Add(new Point(endDesignerBounds.Left + endDesignerBounds.Width / 2, endDesignerBounds.Bottom));
endDesignerConnections = connections.AsReadOnly();
}
connectorBounds[connectorCount - 1].Location = new Point(endDesignerConnections[endDesignerConnections.Count - 1].X - ((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2, endDesignerConnections[endDesignerConnections.Count - 1].Y);
connectorBounds[connectorCount - 1].Size = new Size(((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0), containerEndConnection.Y - endDesignerConnections[endDesignerConnections.Count - 1].Y);
}
else
{
//If there are no activity designers in the container then we show only one connector
connectorBounds[0].Location = new Point(containerStartConnection.X - ((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2, containerStartConnection.Y);
connectorBounds[0].Size = new Size(((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0), containerEndConnection.Y - containerStartConnection.Y);
}
//extend the targets a little bit
for (int i = 0; i < connectorBounds.Length; i++)
{
connectorBounds[i].Inflate(3 * connectorBounds[i].Width, 0);
}
return(connectorBounds);
}
protected internal virtual Rectangle[] GetConnectors()
{
if (base.ActiveDesigner != this)
{
return(new Rectangle[0]);
}
if (!this.Expanded)
{
return(new Rectangle[0]);
}
CompositeDesignerTheme designerTheme = base.DesignerTheme as CompositeDesignerTheme;
if (designerTheme == null)
{
return(new Rectangle[0]);
}
ReadOnlyCollection <ActivityDesigner> containedDesigners = this.ContainedDesigners;
int num = (containedDesigners.Count > 0) ? (2 + (containedDesigners.Count - 1)) : 1;
Rectangle[] rectangleArray = new Rectangle[num];
ReadOnlyCollection <Point> innerConnections = this.GetInnerConnections(DesignerEdges.Bottom | DesignerEdges.Top);
Point point = new Point();
Point point2 = new Point();
if ((innerConnections != null) && (innerConnections.Count > 0))
{
point = innerConnections[0];
point2 = innerConnections[innerConnections.Count - 1];
}
if (containedDesigners.Count > 0)
{
ActivityDesigner designer = containedDesigners[0];
ReadOnlyCollection <Point> connections = designer.GetConnections(DesignerEdges.Bottom | DesignerEdges.Top);
if (connections.Count == 0)
{
Rectangle bounds = designer.Bounds;
connections = new List <Point> {
new Point(bounds.Left + (bounds.Width / 2), bounds.Top), new Point(bounds.Left + (bounds.Width / 2), bounds.Bottom)
}.AsReadOnly();
}
rectangleArray[0].Location = new Point(point.X - (((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2), point.Y);
Point point3 = connections[0];
rectangleArray[0].Size = new Size((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0, point3.Y - point.Y);
for (int j = 0; j < (containedDesigners.Count - 1); j++)
{
ActivityDesigner designer2 = containedDesigners[j];
ActivityDesigner designer3 = containedDesigners[j + 1];
if ((designer2 != null) && (designer3 != null))
{
ReadOnlyCollection <Point> onlys4 = designer2.GetConnections(DesignerEdges.Bottom | DesignerEdges.Top);
int count = onlys4.Count;
ReadOnlyCollection <Point> onlys5 = designer3.GetConnections(DesignerEdges.Bottom | DesignerEdges.Top);
Point point4 = onlys4[count - 1];
Point point5 = onlys4[count - 1];
rectangleArray[j + 1].Location = new Point(point4.X - (((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2), point5.Y);
Point point6 = onlys5[0];
Point point7 = onlys4[count - 1];
rectangleArray[j + 1].Size = new Size((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0, point6.Y - point7.Y);
}
}
ActivityDesigner designer4 = containedDesigners[containedDesigners.Count - 1];
ReadOnlyCollection <Point> onlys6 = designer4.GetConnections(DesignerEdges.Bottom | DesignerEdges.Top);
if (onlys6.Count == 0)
{
Rectangle rectangle2 = designer4.Bounds;
onlys6 = new List <Point> {
new Point(rectangle2.Left + (rectangle2.Width / 2), rectangle2.Top), new Point(rectangle2.Left + (rectangle2.Width / 2), rectangle2.Bottom)
}.AsReadOnly();
}
Point point8 = onlys6[onlys6.Count - 1];
Point point9 = onlys6[onlys6.Count - 1];
rectangleArray[num - 1].Location = new Point(point8.X - (((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2), point9.Y);
Point point10 = onlys6[onlys6.Count - 1];
rectangleArray[num - 1].Size = new Size((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0, point2.Y - point10.Y);
}
else
{
rectangleArray[0].Location = new Point(point.X - (((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0) / 2), point.Y);
rectangleArray[0].Size = new Size((designerTheme != null) ? designerTheme.ConnectorSize.Width : 0, point2.Y - point.Y);
}
for (int i = 0; i < rectangleArray.Length; i++)
{
rectangleArray[i].Inflate(3 * rectangleArray[i].Width, 0);
}
return(rectangleArray);
}
private void DrawParallelDropTargets(ActivityDesignerPaintEventArgs e, int index)
{
Rectangle[] dropTargets = GetDropTargets(Point.Empty);
if (index < 0 || index >= dropTargets.Length)
{
return;
}
CompositeDesignerTheme compositeDesignerTheme = e.DesignerTheme as CompositeDesignerTheme;
if (compositeDesignerTheme == null)
{
return;
}
ReadOnlyCollection <ActivityDesigner> containedDesigners = ContainedDesigners;
Rectangle dropTargetRectangle = dropTargets[index];
Rectangle bounds = Bounds;
int parallelConnectorTop = bounds.Top;
parallelConnectorTop += TitleHeight;
parallelConnectorTop += (containedDesigners.Count > 0) ? compositeDesignerTheme.ConnectorSize.Height * 3 / 4 : 0;
int heightDelta = dropTargetRectangle.Y - parallelConnectorTop;
heightDelta += bounds.Bottom - dropTargetRectangle.Bottom;
heightDelta -= (containedDesigners.Count > 0) ? compositeDesignerTheme.ConnectorSize.Height * 3 / 4 : 0;
dropTargetRectangle.Y = parallelConnectorTop;
dropTargetRectangle.Height += heightDelta;
DrawConnectors(e.Graphics, e.AmbientTheme.DropIndicatorPen, new Point[] { new Point(dropTargetRectangle.Left + dropTargetRectangle.Width / 2, dropTargetRectangle.Top + 2), new Point(dropTargetRectangle.Left + dropTargetRectangle.Width / 2, dropTargetRectangle.Bottom - 2) }, compositeDesignerTheme.ConnectorStartCap, compositeDesignerTheme.ConnectorEndCap);
if (containedDesigners.Count > 0)
{
if (index == 0)
{
ActivityDesigner firstDesigner = containedDesigners[0];
ReadOnlyCollection <Point> firstDesignerConnections = firstDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
Point[] connectorPoints = new Point[2];
connectorPoints[0].X = dropTargetRectangle.X + dropTargetRectangle.Width / 2;
connectorPoints[0].Y = dropTargetRectangle.Y;
connectorPoints[1].X = firstDesignerConnections[0].X;
connectorPoints[1].Y = dropTargetRectangle.Y;
DrawConnectors(e.Graphics, e.AmbientTheme.DropIndicatorPen, connectorPoints, LineAnchor.None, LineAnchor.None);
connectorPoints[0].Y = dropTargetRectangle.Bottom;
connectorPoints[1].Y = dropTargetRectangle.Bottom;
DrawConnectors(e.Graphics, e.AmbientTheme.DropIndicatorPen, connectorPoints, LineAnchor.None, LineAnchor.None);
}
else if (index == containedDesigners.Count)
{
ActivityDesigner lastDesigner = containedDesigners[containedDesigners.Count - 1];
ReadOnlyCollection <Point> lastDesignerConnections = lastDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
Point[] connectorPoints = new Point[2];
connectorPoints[0].X = lastDesignerConnections[0].X;
connectorPoints[0].Y = dropTargetRectangle.Y;
connectorPoints[1].X = dropTargetRectangle.X + dropTargetRectangle.Width / 2;
connectorPoints[1].Y = dropTargetRectangle.Y;
DrawConnectors(e.Graphics, e.AmbientTheme.DropIndicatorPen, connectorPoints, LineAnchor.None, LineAnchor.None);
connectorPoints[0].Y = dropTargetRectangle.Bottom;
connectorPoints[1].Y = dropTargetRectangle.Bottom;
DrawConnectors(e.Graphics, e.AmbientTheme.DropIndicatorPen, connectorPoints, LineAnchor.None, LineAnchor.None);
}
}
}
private void DrawParallelConnectors(ActivityDesignerPaintEventArgs e)
{
CompositeDesignerTheme compositeDesignerTheme = e.DesignerTheme as CompositeDesignerTheme;
if (compositeDesignerTheme == null)
{
return;
}
//Get all the information required to calculate the connectors
Rectangle bounds = Bounds;
int parallelConnectorTop = bounds.Top;
parallelConnectorTop += TitleHeight;
ReadOnlyCollection <ActivityDesigner> containedDesigners = ContainedDesigners;
ActivityDesigner firstDesigner = containedDesigners[0];
ReadOnlyCollection <Point> firstDesignerConnections = firstDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
ActivityDesigner lastDesigner = containedDesigners[containedDesigners.Count - 1];
ReadOnlyCollection <Point> lastDesignerConnections = lastDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
Point[] parallelLinks = new Point[2];
//Draw small vertical line at the top
parallelLinks[0].X = bounds.Left + bounds.Width / 2;
parallelLinks[0].Y = parallelConnectorTop;
parallelLinks[1].X = bounds.Left + bounds.Width / 2;
parallelLinks[1].Y = parallelConnectorTop + compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, parallelLinks, LineAnchor.None, LineAnchor.None);
//Draw Horizontal line at the top
parallelLinks[0].X = firstDesignerConnections[0].X;
parallelLinks[0].Y = parallelConnectorTop + compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
parallelLinks[1].X = lastDesignerConnections[0].X;
parallelLinks[1].Y = parallelConnectorTop + compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, parallelLinks, LineAnchor.None, LineAnchor.None);
//Draw Horizontal line at the bottom
parallelLinks[0].X = firstDesignerConnections[firstDesignerConnections.Count - 1].X;
parallelLinks[0].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
parallelLinks[1].X = lastDesignerConnections[lastDesignerConnections.Count - 1].X;
parallelLinks[1].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, parallelLinks, LineAnchor.None, LineAnchor.None);
//Draw small vertical line at the bottom
parallelLinks[0].X = bounds.Left + bounds.Width / 2;
parallelLinks[0].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
parallelLinks[1].X = bounds.Left + bounds.Width / 2;
parallelLinks[1].Y = bounds.Bottom;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, parallelLinks, LineAnchor.None, LineAnchor.None);
foreach (ActivityDesigner activityDesigner in containedDesigners)
{
ReadOnlyCollection <Point> designerConnections = activityDesigner.GetConnections(DesignerEdges.Top | DesignerEdges.Bottom);
int connectionCount = designerConnections.Count;
Point[] connectingLine = new Point[2];
//Draw connectors for every activityDesigner
connectingLine[0].X = designerConnections[0].X;
connectingLine[0].Y = parallelConnectorTop + compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
connectingLine[1].X = designerConnections[0].X;
connectingLine[1].Y = designerConnections[0].Y;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, connectingLine, compositeDesignerTheme.ConnectorStartCap, compositeDesignerTheme.ConnectorEndCap);
//Draw connectors for every activityDesigner
connectingLine[0].X = designerConnections[connectionCount - 1].X;
connectingLine[0].Y = designerConnections[connectionCount - 1].Y;
connectingLine[1].X = designerConnections[connectionCount - 1].X;
connectingLine[1].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height * 3 / 4;
DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, connectingLine, compositeDesignerTheme.ConnectorStartCap, compositeDesignerTheme.ConnectorEndCap);
}
}