コード例 #1
0
        /// <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);
        }
コード例 #2
0
        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;
        }