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https://gitee.com/akwkevin/aistudio.-wpf.-diagram
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项目结构调整
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艾竹
199
Others/Live-Charts-master/WpfView/Points/CandlePointView.cs
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199
Others/Live-Charts-master/WpfView/Points/CandlePointView.cs
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//The MIT License(MIT)
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//Copyright(c) 2016 Alberto Rodriguez & LiveCharts Contributors
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//Permission is hereby granted, free of charge, to any person obtaining a copy
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//of this software and associated documentation files (the "Software"), to deal
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//in the Software without restriction, including without limitation the rights
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//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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//copies of the Software, and to permit persons to whom the Software is
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//furnished to do so, subject to the following conditions:
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//The above copyright notice and this permission notice shall be included in all
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//copies or substantial portions of the Software.
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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//SOFTWARE.
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using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media.Animation;
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using System.Windows.Shapes;
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using LiveCharts.Charts;
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using LiveCharts.Definitions.Points;
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namespace LiveCharts.Wpf.Points
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{
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internal class CandlePointView : PointView, IOhlcPointView
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{
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public Line HighToLowLine { get; set; }
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public Rectangle OpenToCloseRectangle { get; set; }
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public double Open { get; set; }
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public double High { get; set; }
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public double Close { get; set; }
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public double Low { get; set; }
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public double Width { get; set; }
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public double Left { get; set; }
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public double StartReference { get; set; }
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public override void DrawOrMove(ChartPoint previousDrawn, ChartPoint current, int index, ChartCore chart)
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{
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var center = Left + Width / 2;
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if (IsNew)
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{
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HighToLowLine.X1 = center;
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HighToLowLine.X2 = center;
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HighToLowLine.Y1 = StartReference;
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HighToLowLine.Y2 = StartReference;
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Canvas.SetTop(OpenToCloseRectangle, (Open + Close) / 2);
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Canvas.SetLeft(OpenToCloseRectangle, Left);
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OpenToCloseRectangle.Width = Width;
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OpenToCloseRectangle.Height = 0;
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}
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if (DataLabel != null && double.IsNaN(Canvas.GetLeft(DataLabel)))
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{
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Canvas.SetTop(DataLabel, current.ChartLocation.Y);
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Canvas.SetLeft(DataLabel, current.ChartLocation.X);
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}
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if (HoverShape != null)
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{
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var h = Math.Abs(High - Low);
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HoverShape.Width = Width;
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HoverShape.Height = h > 10 ? h : 10;
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Canvas.SetLeft(HoverShape, Left);
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Canvas.SetTop(HoverShape, High);
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}
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if (chart.View.DisableAnimations)
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{
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HighToLowLine.Y1 = High;
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HighToLowLine.Y2 = Low;
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HighToLowLine.X1 = center;
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HighToLowLine.X2 = center;
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OpenToCloseRectangle.Width = Width;
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OpenToCloseRectangle.Height = Math.Abs(Open - Close);
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Canvas.SetTop(OpenToCloseRectangle, Math.Min(Open, Close));
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Canvas.SetLeft(OpenToCloseRectangle, Left);
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if (DataLabel != null)
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{
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DataLabel.UpdateLayout();
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var cx = CorrectXLabel(current.ChartLocation.X - DataLabel.ActualHeight * .5, chart);
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var cy = CorrectYLabel(current.ChartLocation.Y - DataLabel.ActualWidth * .5, chart);
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Canvas.SetTop(DataLabel, cy);
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Canvas.SetLeft(DataLabel, cx);
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}
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return;
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}
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var candleSeries = (CandleSeries) current.SeriesView;
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if (candleSeries.ColoringRules == null)
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{
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if (current.Open <= current.Close)
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{
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HighToLowLine.Stroke = candleSeries.IncreaseBrush;
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OpenToCloseRectangle.Fill = candleSeries.IncreaseBrush;
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OpenToCloseRectangle.Stroke = candleSeries.IncreaseBrush;
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}
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else
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{
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HighToLowLine.Stroke = candleSeries.DecreaseBrush;
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OpenToCloseRectangle.Fill = candleSeries.DecreaseBrush;
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OpenToCloseRectangle.Stroke = candleSeries.DecreaseBrush;
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}
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}
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else
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{
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foreach (var rule in candleSeries.ColoringRules)
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{
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if (!rule.Condition(current, previousDrawn)) continue;
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HighToLowLine.Stroke = rule.Stroke;
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OpenToCloseRectangle.Fill = rule.Fill;
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OpenToCloseRectangle.Stroke = rule.Stroke;
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break;
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}
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}
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var animSpeed = chart.View.AnimationsSpeed;
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if (DataLabel != null)
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{
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DataLabel.UpdateLayout();
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var cx = CorrectXLabel(current.ChartLocation.X - DataLabel.ActualWidth * .5, chart);
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var cy = CorrectYLabel(current.ChartLocation.Y - DataLabel.ActualHeight * .5, chart);
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DataLabel.BeginAnimation(Canvas.LeftProperty, new DoubleAnimation(cx, animSpeed));
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DataLabel.BeginAnimation(Canvas.TopProperty, new DoubleAnimation(cy, animSpeed));
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}
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HighToLowLine.BeginAnimation(Line.X1Property, new DoubleAnimation(center, animSpeed));
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HighToLowLine.BeginAnimation(Line.X2Property, new DoubleAnimation(center, animSpeed));
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HighToLowLine.BeginAnimation(Line.Y1Property, new DoubleAnimation(High, animSpeed));
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HighToLowLine.BeginAnimation(Line.Y2Property, new DoubleAnimation(Low, animSpeed));
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OpenToCloseRectangle.BeginAnimation(Canvas.LeftProperty,
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new DoubleAnimation(Left, animSpeed));
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OpenToCloseRectangle.BeginAnimation(Canvas.TopProperty,
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new DoubleAnimation(Math.Min(Open, Close), animSpeed));
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OpenToCloseRectangle.BeginAnimation(FrameworkElement.WidthProperty,
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new DoubleAnimation(Width, animSpeed));
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OpenToCloseRectangle.BeginAnimation(FrameworkElement.HeightProperty,
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new DoubleAnimation(Math.Max(Math.Abs(Open - Close), OpenToCloseRectangle.StrokeThickness), animSpeed));
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}
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public override void RemoveFromView(ChartCore chart)
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{
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chart.View.RemoveFromDrawMargin(HoverShape);
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chart.View.RemoveFromDrawMargin(OpenToCloseRectangle);
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chart.View.RemoveFromDrawMargin(HighToLowLine);
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chart.View.RemoveFromDrawMargin(DataLabel);
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}
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protected double CorrectXLabel(double desiredPosition, ChartCore chart)
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{
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if (desiredPosition + DataLabel.ActualWidth * .5 < -0.1) return -DataLabel.ActualWidth;
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if (desiredPosition + DataLabel.ActualWidth > chart.DrawMargin.Width)
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desiredPosition -= desiredPosition + DataLabel.ActualWidth - chart.DrawMargin.Width + 2;
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if (desiredPosition < 0) desiredPosition = 0;
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return desiredPosition;
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}
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protected double CorrectYLabel(double desiredPosition, ChartCore chart)
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{
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//desiredPosition -= Ellipse.ActualHeight * .5 + DataLabel.ActualHeight * .5 + 2;
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if (desiredPosition + DataLabel.ActualHeight > chart.DrawMargin.Height)
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desiredPosition -= desiredPosition + DataLabel.ActualHeight - chart.DrawMargin.Height + 2;
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if (desiredPosition < 0) desiredPosition = 0;
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return desiredPosition;
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}
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}
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}
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