public static Shape GetShaper(TopicShape shape, int round)
{
switch (shape)
{
case TopicShape.Ellipse:
return(new EllipseShape());
case TopicShape.BaseLine:
return(new BaseLineShape());
case TopicShape.None:
return(new NoneShape());
case TopicShape.Rectangle:
default:
if (round > 0)
{
return(new RoundRectangleShape(round));
}
else
{
return(new RectangleShape());
}
}
}
Point[] GetPointsForRoot(TopicShape shapeFrom, TopicShape shapeTo,
Rectangle rectFrom, Rectangle rectTo,
Vector4 vector, Vector4 vectorTo)
{
var fcp = PaintHelper.CenterPoint(rectFrom);
int bezierTurn;
Point[] pts = new Point[4];
switch (vector)
{
case Vector4.Left:
bezierTurn = Math.Min(MaxBezierTurn, Math.Abs(rectTo.Right - rectFrom.Left));
pts[3] = new Point(rectTo.Right, rectTo.Y + rectTo.Height / 2);
pts[2] = new Point(rectTo.Right + bezierTurn, pts[3].Y);
break;
case Vector4.Right:
bezierTurn = Math.Min(MaxBezierTurn, Math.Abs(rectTo.Left - rectFrom.Right));
pts[3] = new Point(rectTo.X, rectTo.Y + rectTo.Height / 2);
pts[2] = new Point(rectTo.X - bezierTurn, pts[3].Y);
break;
case Vector4.Top:
bezierTurn = Math.Min(MaxBezierTurn, Math.Abs(rectFrom.Top - rectTo.Bottom));
pts[3] = new Point(rectTo.X + rectTo.Width / 2, rectTo.Bottom);
pts[2] = new Point(rectTo.X + rectTo.Width / 2, rectTo.Bottom + bezierTurn);
break;
case Vector4.Bottom:
bezierTurn = Math.Min(MaxBezierTurn, Math.Abs(rectTo.Top - rectFrom.Bottom));
pts[3] = new Point(rectTo.X + rectTo.Width / 2, rectTo.Top);
pts[2] = new Point(rectTo.X + rectTo.Width / 2, rectTo.Top - bezierTurn);
break;
}
Point?startPoint;
if (shapeFrom == TopicShape.Ellipse)
{
startPoint = PaintHelper.GetPointForPointIntersectEllipse(rectFrom, pts[3]);
}
else
{
startPoint = PaintHelper.GetPointForLineIntersectRectangle(rectFrom, pts[3]);
}
if (!startPoint.HasValue)
{
return(null);
}
pts[0] = startPoint.Value;
pts[1] = startPoint.Value;
return(pts);
}
public void DrawLine(IGraphics graphics, IPen pen,
TopicShape shapeFrom, TopicShape shapeTo,
Rectangle rectFrom, Rectangle rectTo,
Vector4 vectorFrom, Vector4 vectorTo,
LineAnchor startAnchor, LineAnchor endAnchor)
{
Point[] pts = GetPoints(rectFrom, rectTo, vectorFrom, vectorTo);
if (pts == null)
{
return;
}
graphics.DrawLine(pen, pts[0], pts[1], startAnchor, endAnchor);
}
public static TopicShape GetTopicShape(string str, TopicShape defaultValue)
{
int i;
if (!int.TryParse(str, out i))
{
return(defaultValue);
}
try
{
return((TopicShape)i);
}
catch (System.Exception ex)
{
Helper.WriteLog(ex);
return(defaultValue);
}
}
public void DrawLine(IGraphics graphics, IPen pen,
TopicShape shapeFrom, TopicShape shapeTo,
Rectangle rectFrom, Rectangle rectTo,
Vector4 vectorFrom, Vector4 vectorTo,
LineAnchor startAnchor, LineAnchor endAnchor)
{
Point[] pts;
if (IsRoot)
{
pts = GetPointsForRoot(shapeFrom, shapeTo, rectFrom, rectTo, vectorFrom, vectorTo);
}
else
{
pts = GetPoints(rectFrom, rectTo, vectorFrom, vectorTo);
}
if (pts.IsNullOrEmpty())
{
return;
}
graphics.DrawBezier(pen, pts[0], pts[1], pts[2], pts[3], startAnchor, endAnchor);
}
public void DrawLine(IGraphics graphics, IPen pen,
TopicShape shapeFrom, TopicShape shapeTo,
Rectangle rectFrom, Rectangle rectTo,
Vector4 vectorFrom, Vector4 vectorTo,
LineAnchor startAnchor, LineAnchor endAnchor)
{
Point[] pts = GetPoints(rectFrom, rectTo, vectorFrom, vectorTo);
if (pts == null)
{
return;
}
var path = graphics.GraphicsPath();
path.StartFigure();
path.AddBezier(pts[0], pts[1], pts[2], pts[3]);
path.AddLine(pts[3], pts[4]);
path.AddBezier(pts[4], pts[5], pts[6], pts[7]);
path.CloseFigure();
graphics.FillPath(graphics.SolidBrush(pen.Color), path);
}
internal static string _ConvertToString(TopicShape shape)
{
switch (shape)
{
case TopicShape.Default:
return(Lang._("Default"));
case TopicShape.BaseLine:
return(Lang._("Base Line"));
case TopicShape.Ellipse:
return(Lang._("Ellipse"));
case TopicShape.Rectangle:
return(Lang._("Rectangle"));
case TopicShape.None:
return(Lang._("None"));
default:
return(shape.ToString());
}
}
