/// <summary>
/// 添加点的小圆圈，方便鼠标点中。并加提示
/// </summary>
/// <param name="center"></param>
/// <param name="rotate"></param>
protected Ellipse AddPoint(Point center, double rotate, object tooltip, Model.DataPoint p)
{
var circle = Common.Helper.CreateEllipse(center, rotate);
circle.Stroke = this.Stroke;
circle.Fill = this.Fill;
ToolTipService.SetToolTip(circle, tooltip);
if (this.ItemClick != null)
{
circle.Cursor = Cursors.Hand;
circle.MouseLeftButtonUp += (sender, e) => {
var arg = new Model.ItemClickEventArg()
{
Data = this.DataContext,
Item = p
};
ItemClick(circle, arg);
};
}
Canvas.AddChild(circle);
System.Windows.Controls.Canvas.SetZIndex(circle, Common.BaseParams.TooltipZIndex);
return(circle);
}
/// <summary>
/// 生成当前图形
/// </summary>
/// <returns></returns>
public override System.Collections.Generic.IEnumerable <Shape> CreatePath()
{
if (storyboard != null)
{
storyboard.Stop();
}
if (Canvas.IsAnimate)
{
this.storyboard = new Storyboard();
}
this.Shaps.Clear();
if (DataContext == null)
{
return(base.CreatePath());
}
var data = DataContext as System.Collections.ICollection;
var circlesize = data.Count > 20 ? circleSize / data.Count * 20 : circleSize;
var center = new Point()
{
X = this.Canvas.Width / 2, Y = centerSize * 2.3
};
var left = Canvas.Margin.Left + circlesize * 2;
if (left <= circlesize / 2)
{
left = circlesize + 2;
}
var bottom = (center.Y + circlesize + centerSize);
var maxbottom = Canvas.Height - Canvas.Margin.Bottom - circlesize - 4;
//距离中心距离
var radiacenter = Math.Min(center.X - left, maxbottom);
var circleIndex = -1;
//小圆个数
var circlecount = data.Count;
var rotatestep = 3.78 / circlecount;//每个小圆的角度
var mapping = GetMapping(Model.ItemMapping.EnumDataMember.Y);
if (mapping == null)
{
throw new Exception("至少需要指定一个Y轴字段映射");
}
//与中心点关联设置
var links = GetMappings(Model.ItemMapping.EnumDataMember.CLMLink);
var tocentername = "";
//画泡泡
foreach (var m in data)
{
if (m != null)
{
var item = new Model.DataPoint();
item.PotinShape = new Path();
var v = Common.Helper.GetPropertyName(m, mapping.MemberName);;
item.PointType = Model.DataPoint.EnumPointType.ChartPoint;
item.StringValue = v == null?"":v.ToString();
System.Windows.Controls.Canvas.SetZIndex(item.PotinShape, Common.BaseParams.ShapZIndex);
var el = new EllipseGeometry();
item.PotinShape.Data = el;
//画中心位置
if (circleIndex == -1)
{
item.Position = el.Center = center;
el.RadiusX = el.RadiusY = centerSize;
item.Width = item.Height = centerSize * 2;
tocentername = item.StringValue;
item.StringValue = (CenterName ?? mapping.MemberName) + "\n" + item.StringValue;
var label = item.CreateLabel();
//加入标签
Canvas.AddChild(label);
if (ItemClick != null)
{
label.Cursor = Cursors.Hand;
var centerdata = m;
label.MouseLeftButtonUp += (sender, e) =>
{
var arg = new Model.ItemClickEventArg()
{
Data = centerdata,
Item = item
};
ItemClick(sender, arg);
};
}
var tootip = CreateTooltip(m);
ToolTipService.SetToolTip(label, tootip);
}
//画边上的小圆
else
{
//初始化小圆点
InitPoint(el, item, rotatestep, circleIndex, radiacenter, center, maxbottom, circlesize, tocentername, circlecount, links, m);
}
if (Canvas.IsFillShape)
{
item.PotinShape.Fill = this.Fill;
}
item.PotinShape.Stroke = this.Stroke;
item.PotinShape.StrokeThickness = Canvas.LineWidth;
this.Shaps.Add(item.PotinShape);
circleIndex++;
}
}
return(base.CreatePath());
}
/// <summary>
/// 初始化项
/// </summary>
/// <param name="el"></param>
/// <param name="item"></param>
/// <param name="rotatestep"></param>
/// <param name="circleIndex"></param>
/// <param name="radiacenter"></param>
/// <param name="center"></param>
/// <param name="maxbottom"></param>
/// <param name="circlesize"></param>
/// <param name="tocentername"></param>
private void InitPoint(EllipseGeometry el, Model.DataPoint item,
double rotatestep, int circleIndex, double radiacenter, Point center,
double maxbottom, double circlesize, string tocentername, int circlecount,
System.Collections.Generic.IEnumerable <Model.ItemMapping> links, object data)
{
var position = new Point();
var rotate = rotatestep * circleIndex + 2.95;
var rsin = Math.Sin(rotate);
var rcos = Math.Cos(rotate);
//二圆偏移量
var ystep = rsin * radiacenter;
var xstep = rcos * radiacenter;
position.X = center.X + xstep;
position.Y = center.Y - ystep;
if (position.Y >= maxbottom)
{
position.Y = maxbottom;
}
item.Position = position;
el.RadiusX = el.RadiusY = circlesize;
item.Width = item.Height = circlesize * 2;
var arrow = new Controls.CLMArrow(Canvas);
arrow.Fill = this.Fill;
arrow.Stroke = this.Stroke;
arrow.Rotate = rotate;
arrow.ToName = tocentername;
arrow.FromName = item.StringValue;
arrow.RotateSin = rsin;
arrow.RotateCos = rcos;
var startystep = (circlesize) * arrow.RotateSin;
var startxstep = (circlesize) * arrow.RotateCos;
arrow.StartPoint = new Point(item.Position.X - startxstep, item.Position.Y + startystep);
var endystep = centerSize * arrow.RotateSin;
var endxstep = centerSize * arrow.RotateCos;
arrow.EndPoint = new Point(center.X + endxstep, center.Y - endystep);
if (links != null)
{
var count = links.Count <Model.ItemMapping>();
if (count > 0)
{
var lnk = links.ElementAt <Model.ItemMapping>(0);
var tmp = Common.Helper.GetPropertyName(data, lnk.MemberName);
if (!string.IsNullOrWhiteSpace(lnk.MarkName))
{
arrow.FromMarkName = lnk.MarkName;
}
arrow.FromValue = tmp == null ? "" : tmp.ToString();
}
if (count > 1)
{
var lnk = links.ElementAt <Model.ItemMapping>(1);
var tmp = Common.Helper.GetPropertyName(data, lnk.MemberName);
if (!string.IsNullOrWhiteSpace(lnk.MarkName))
{
arrow.ToMarkName = lnk.MarkName;
}
arrow.ToValue = tmp == null ? "" : tmp.ToString();
}
}
//设置箭头提示事件
if (ArrowTooltipClick != null)
{
arrow.SetClickEvent(ArrowTooltipClick);
}
arrow.Draw();
item.TargetControl = arrow;
var label = item.CreateLabel();
Canvas.AddChild(label);
if (ItemClick != null)
{
label.Cursor = Cursors.Hand;
label.MouseLeftButtonUp += (sender, e) =>
{
var arg = new Model.ItemClickEventArg()
{
Data = data,
Item = item
};
ItemClick(sender, arg);
};
}
if (Canvas.IsAnimate)
{
label.Visibility = Visibility.Collapsed;
var anima = new PointAnimation();
anima.To = position;
anima.Duration = TimeSpan.FromMilliseconds(AnimateDurtion);
Storyboard.SetTarget(anima, el);
el.Center = center;
Storyboard.SetTargetProperty(anima, new PropertyPath("Center"));
var sizeanimax = new DoubleAnimation();
sizeanimax.From = 0;
sizeanimax.To = circlesize;
Storyboard.SetTarget(sizeanimax, el);
Storyboard.SetTargetProperty(sizeanimax, new PropertyPath("RadiusX"));
var sizeanimay = new DoubleAnimation();
sizeanimay.From = 0;
sizeanimay.To = circlesize;
Storyboard.SetTarget(sizeanimay, el);
Storyboard.SetTargetProperty(sizeanimay, new PropertyPath("RadiusY"));
anima.Completed += new EventHandler((sender, e) =>
{
label.Visibility = Visibility.Visible;
InitMouseEvent(label, arrow);
if (circleIndex == circlecount / 2 - 1)
{
arrow.Show();
currentShowedArrow = arrow;
}
});
this.storyboard.Children.Add(anima);
this.storyboard.Children.Add(sizeanimax);
this.storyboard.Children.Add(sizeanimay);
}
else
{
el.Center = position;
//加入标签
//var label = item.CreateLabel();
//Canvas.AddChild(label);
InitMouseEvent(label, arrow);
if (circleIndex == circlecount / 2 - 1)
{
arrow.Show();
currentShowedArrow = arrow;
}
}
}