public void MouseHoverHandle(EventArgs e)
{
if (!_monitorPoints.IsNullOrEmpty())
{
Point center = Bounds.CenterPoint();
center.Offset(-Location.X, -Location.Y);
Rectangle hintRegion = new Rectangle(center.X - MonitorPointRadius - 2 * DrawMonitorWidth, center.Y - MonitorPointRadius - 2 * DrawMonitorWidth, (2 * DrawMonitorWidth + MonitorPointRadius) * 2, (2 * DrawMonitorWidth + MonitorPointRadius) * 2);
if (hintRegion.Contains(PointToClient(MousePosition)))
{
TraceMonitorPoint tmp = _monitorPoints[0];
String hint = String.Format("名 称：{0}\r\n进入时间：{1}", tmp.Name, tmp.Arrive);
ShowToolTip(hint);
}
}
}
private void DrawMonitor()//Modify later to support multi
{
Graphics g = CreateGraphics();
foreach (TraceMonitorPoint monitorPoint in _monitorPoints)
{
Pen p = new Pen(monitorPoint.Color, DrawMonitorWidth);
SolidBrush sb = new SolidBrush(monitorPoint.Color);
Point center = Bounds.CenterPoint();
center.Offset(-Location.X, -Location.Y);
g.FillEllipse(sb, new Rectangle(center.X - MonitorPointRadius, center.Y - MonitorPointRadius, MonitorPointRadius * 2, MonitorPointRadius * 2));
g.DrawEllipse(p, center.X - MonitorPointRadius - 2 * DrawMonitorWidth, center.Y - MonitorPointRadius - 2 * DrawMonitorWidth, (2 * DrawMonitorWidth + MonitorPointRadius) * 2, (2 * DrawMonitorWidth + MonitorPointRadius) * 2);
p.Dispose();
sb.Dispose();
}
g.Dispose();
}
private void DrawTrace()
{
Pen linePen = new Pen(_traceColor, DrawTraceWidth);
Graphics g = CreateGraphics();
foreach (TraceChain tc in _traceChains)
{
Point previous = GetAnchorPoint(tc.PreviousCtrl);//这个点以当前控件的父窗体为坐标系
Point next = GetAnchorPoint(tc.NextCtrl);
if (tc.PreviousCtrl == tc.NextCtrl)
{
next = Bounds.CenterPoint();
}
RectangleF inflateBounds = new Rectangle(Bounds.Location, Bounds.Size);
inflateBounds.Inflate(-0.1f, -0.1f);
if (!previous.IsEmpty && !next.IsEmpty) //不是起点和终点
{
Point anglePoint1 = new Point(previous.X, next.Y);
Point anglePoint2 = new Point(next.X, previous.Y);
SolidBrush brushTraceBy = new SolidBrush(_traceGobyColor);
if (inflateBounds.Contains(anglePoint1) || inflateBounds.Contains(anglePoint2))
{//若有一个折点位于空间内，则以此点为中转点
Point anglePoint = inflateBounds.Contains(anglePoint1) ? anglePoint1 : anglePoint2;
previous.Offset(-Location.X, -Location.Y);
anglePoint.Offset(-Location.X, -Location.Y);
next.Offset(-Location.X, -Location.Y);
g.DrawLines(linePen, new[] { previous, anglePoint, next });
if (tc.PreviousCtrl != tc.NextCtrl)
{
g.FillEllipse(brushTraceBy, new Rectangle(anglePoint.X - TracePointRadius, anglePoint.Y - TracePointRadius, TracePointRadius * 2, TracePointRadius * 2));
}
else
{
g.FillEllipse(brushTraceBy, new Rectangle(next.X - TracePointRadius, next.Y - TracePointRadius, TracePointRadius * 2, TracePointRadius * 2));
}
}
else
{
Point intermediatePoint = new Point((previous.X + next.X) / 2, (previous.Y + next.Y) / 2); //中点，若中点位于空间内，则以此点作为中转点
if (!inflateBounds.Contains(intermediatePoint)) //若中点不位于空间内，则以空间中点作为中转点
{
intermediatePoint = Bounds.CenterPoint();
}
Point centerAnglePoint1 = new Point(previous.X, intermediatePoint.Y);
Point centerAnglePoint2 = new Point(intermediatePoint.X, previous.Y);
Point centerAnglePointPrev = inflateBounds.Contains(centerAnglePoint1) ? centerAnglePoint1 : centerAnglePoint2;
centerAnglePoint1 = new Point(next.X, intermediatePoint.Y);
centerAnglePoint2 = new Point(intermediatePoint.X, next.Y);
Point centerAnglePointNext = inflateBounds.Contains(centerAnglePoint1) ? centerAnglePoint1 : centerAnglePoint2;
previous.Offset(-Location.X, -Location.Y);//转变为控件本身为坐标系的点
centerAnglePointPrev.Offset(-Location.X, -Location.Y);
centerAnglePointNext.Offset(-Location.X, -Location.Y);
next.Offset(-Location.X, -Location.Y);
intermediatePoint.Offset(-Location.X, -Location.Y);
g.DrawLines(linePen, new[] { previous, centerAnglePointPrev, centerAnglePointNext, next });
g.FillEllipse(brushTraceBy, new Rectangle(intermediatePoint.X - TracePointRadius, intermediatePoint.Y - TracePointRadius, TracePointRadius * 2, TracePointRadius * 2));
}
brushTraceBy.Dispose();
}
else if (previous.IsEmpty && next.IsEmpty)
{
continue;
}
else //如果是起点，或者是终点
{
Point anchorPoint = previous.IsEmpty ? next : previous;
Point intermediatePoint = Bounds.CenterPoint();
intermediatePoint.X += previous.IsEmpty ? -TracePointOffset * 2 : TracePointOffset * 2;
SolidBrush brushSourceDest = new SolidBrush(previous.IsEmpty ? _traceStartColor : _traceEndColor);
Point anglePoint1 = new Point(anchorPoint.X, intermediatePoint.Y);
Point anglePoint2 = new Point(intermediatePoint.X, anchorPoint.Y);
Point anglePoint = inflateBounds.Contains(anglePoint1) ? anglePoint1 : anglePoint2;
anchorPoint.Offset(-Location.X, -Location.Y);
anglePoint.Offset(-Location.X, -Location.Y);
intermediatePoint.Offset(-Location.X, -Location.Y);
g.DrawLines(linePen, new[] { anchorPoint, anglePoint, intermediatePoint });
g.FillEllipse(brushSourceDest, new Rectangle(intermediatePoint.X - TracePointRadius, intermediatePoint.Y - TracePointRadius, TracePointRadius * 2, TracePointRadius * 2));
brushSourceDest.Dispose();
}
}
g.Dispose();
linePen.Dispose();
}