/// <summary>
/// 绘制事件点，位置信息来源于计算
/// </summary>
///// <param name="position">事件点显示的位置</param>
/// <param name="dataPoint">事件内容</param>
private void DrawEventPointHelper(/*Point position, */ EventData eventData)
{
//Ellipse eventTag = new Ellipse()
//{
// StrokeThickness = 10,
// Stroke = Brushes.DarkSlateGray,
// Fill = Brushes.DarkSlateGray,
// Height = 10,
// Width = 10
//};
if (!ShowEventTag)
{
return;
}
var xPos = CaculateXPosForEventData(eventData);
if (xPos == -1)
{
return;
}
var yPos = CaculateAverageYPosForXPos(xPos);
Image eventTag = new Image();
eventTag.Source = new BitmapImage(new Uri(@"/Resource/EventPoint.ico", UriKind.Relative));
eventTag.MouseLeftButtonDown += (sender, args) =>
{
EventPointWindow msgWindow = new EventPointWindow();
msgWindow.Title = "数据点";
//msgWindow.Description.Text = "Value: " + eventData.RawData;
msgWindow.Detail.Text = eventData.Description;
msgWindow.Timestamp.Text = eventData.TimeStamp.ToString("yyyy-MM-dd HH:mm:ss");
var pos = Mouse.GetPosition(null);
msgWindow.Left = pos.X;
msgWindow.Top = pos.Y;
msgWindow.Show();
//MessageBox.Show(dataPoint.DataTag.Description);
};
Canvas.SetLeft(eventTag, xPos - 5); // 移到线上
Canvas.SetTop(eventTag, yPos - 5);
var index = BasePart.Children.Add(eventTag);
//_eventPoints.Add(new ComponentItem<Ellipse>(index, eventTag));
_eventPoints.Add(eventTag);
}
private void DrawLineHelper(PolylineItem lineItem)
{
if (lineItem.line == null)
{
var prop = _linePropertyDictionary[lineItem.LineName];
lineItem.line = new Polyline()
{
Stroke = new SolidColorBrush(prop.LineColor),
StrokeThickness = prop.StrokeThickness
};
Border lineControl = (Border)CreateLineControlBorder(prop);
lineControl.MouseLeftButtonDown += (sender, args) =>
{
if (lineItem.Visible)
{
//var tmp = (Border) lineControl;
//var label = (Label) tmp.Child;
lineControl.Background = Brushes.DarkGray;
lineItem.Visible = false;
lineItem.line.Visibility = Visibility.Hidden;
}
else
{
//var tmp = (Border)lineControl;
//var label = (Label)tmp.Child;
lineControl.Background = new SolidColorBrush(prop.LineColor);
lineItem.Visible = true;
lineItem.line.Visibility = Visibility.Visible;
}
};
LinesStackPanel.Children.Add(lineControl);
// 判断双击
int mouseLeftClickCnt = 0;
DateTime lastClickTime = DateTime.Now;
// 标记高亮
//bool highlightPolyline = false;
lineItem.line.MouseLeftButtonDown += (sender, args) =>
{
if (mouseLeftClickCnt == 0)
{
lastClickTime = DateTime.Now;
}
if (mouseLeftClickCnt > 0 && mouseLeftClickCnt % 2 == 0 && (DateTime.Now - lastClickTime).TotalMilliseconds < 500)
{
var pos = args.GetPosition(lineItem.line);
var point = lineItem._showableDataPointsBuffer[(int)(pos.X - _originPoint.X)];
EventPointWindow tmpWindowForPoint = new EventPointWindow();
tmpWindowForPoint.LoadEventData(null);
// GetPosition参数为null，则默认取全局的绝对坐标（显示屏幕），直接画点即可
var tmpPos = Mouse.GetPosition(null);
tmpWindowForPoint.Left = tmpPos.X;
tmpWindowForPoint.Top = tmpPos.Y;
if (tmpWindowForPoint.ShowDialog().Value)
{
DrawEventPointHelper(tmpWindowForPoint.CurrentData);
}
}
else
{
lastClickTime = DateTime.Now;
if (!_highlightPolyline)
{
_highlightPolyline = true;
lineItem.line.Stroke = Brushes.Aqua;
lineItem.line.StrokeThickness = 1.5;
var pos = args.GetPosition(lineItem.line);
var point = lineItem._showableDataPointsBuffer[(int)pos.X];
_currentSelectPolylineItem = lineItem;
}
else
{
lineItem.line.Stroke = new SolidColorBrush(prop.LineColor);
lineItem.line.StrokeThickness = prop.StrokeThickness;
}
}
mouseLeftClickCnt++;
};
////鼠标碰线
//_wave.MouseEnter += (sender, args) =>
//{
// _wave.Stroke = Brushes.Aqua;
// _wave.StrokeThickness = 1.5;
// var pos = args.GetPosition(_wave);
// var point = _showableDataPointsBuffer[(int) pos.X];
//};
//// 鼠标离开
//_wave.MouseLeave += (sender, args) =>
//{
// //if (_showPointWindow == false)
// //{
// _wave.Stroke = Brushes.Black;
// _wave.StrokeThickness = 1;
// //_tmpWindowForPoint.Hide();
// //_tmpWindowForPoint.Visibility = Visibility.Hidden;
// //}
//};
//_wave.MouseMove += (sender, args) =>
//{
// var pos = args.GetPosition(BasePart);
// var point = _showableDataPointsBuffer[(int) (pos.X - _originPoint.X)];
// _tmpWindowForPoint.LoadDataPoint(point);
//};
var index = BasePart.Children.Add(lineItem.line);
//_wave = new ComponentItem<Polyline>(index, polyLine);
//_wave = polyLine;
}
// 全屏刷新时每次显示全部的buffer数据点内容
// 删除事件点
foreach (var eventPoint in _eventPoints)
{
BasePart.Children.Remove(eventPoint);
}
_eventPoints.Clear();
// 画线
lineItem._displayOffset = 0;
var tmpPoints = new PointCollection();
foreach (var dataPoint in lineItem._showableDataPointsBuffer)
{
if (dataPoint != null)
{
tmpPoints.Add(DrawPointHelper(dataPoint, lineItem._displayOffset++));
}
}
lineItem.line.Points = tmpPoints;
}