项目结构调整

Others/Live-Charts-master/UwpView/Points/ScatterPointView.cs

@@ -0,0 +1,153 @@
+//The MIT License(MIT)
+
+//Copyright(c) 2016 Alberto Rodriguez & LiveCharts Contributors
+
+//Permission is hereby granted, free of charge, to any person obtaining a copy
+//of this software and associated documentation files (the "Software"), to deal
+//in the Software without restriction, including without limitation the rights
+//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//copies of the Software, and to permit persons to whom the Software is
+//furnished to do so, subject to the following conditions:
+
+//The above copyright notice and this permission notice shall be included in all
+//copies or substantial portions of the Software.
+
+//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//SOFTWARE.
+
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Shapes;
+using LiveCharts.Charts;
+using LiveCharts.Definitions.Points;
+using LiveCharts.Uwp.Components;
+
+namespace LiveCharts.Uwp.Points
+{
+    internal class ScatterPointView : PointView, IScatterPointView
+    {
+        public Shape Shape { get; set; }
+        public double Diameter { get; set; }
+
+        public override void DrawOrMove(ChartPoint previousDrawn, ChartPoint current, int index, ChartCore chart)
+        {
+            if (IsNew)
+            {
+                Canvas.SetTop(Shape, current.ChartLocation.Y);
+                Canvas.SetLeft(Shape, current.ChartLocation.X);
+
+                Shape.Width = 0;
+                Shape.Height = 0;
+            }
+
+            if (DataLabel != null && double.IsNaN(Canvas.GetLeft(DataLabel)))
+            {
+                Canvas.SetTop(DataLabel, current.ChartLocation.Y);
+                Canvas.SetLeft(DataLabel, current.ChartLocation.X);
+            }
+
+            if (HoverShape != null)
+            {
+                HoverShape.Width = Diameter;
+                HoverShape.Height = Diameter;
+                Canvas.SetLeft(HoverShape, current.ChartLocation.X - Diameter / 2);
+                Canvas.SetTop(HoverShape, current.ChartLocation.Y - Diameter / 2);
+            }
+
+            if (chart.View.DisableAnimations)
+            {
+                Shape.Width = Diameter;
+                Shape.Height = Diameter;
+
+                Canvas.SetTop(Shape, current.ChartLocation.Y - Shape.Height*.5);
+                Canvas.SetLeft(Shape, current.ChartLocation.X - Shape.Width*.5);
+
+                if (DataLabel != null)
+                {
+                    DataLabel.UpdateLayout();
+
+                    var cx = CorrectXLabel(current.ChartLocation.X - DataLabel.ActualWidth*.5, chart);
+                    var cy = CorrectYLabel(current.ChartLocation.Y - DataLabel.ActualHeight*.5, chart);
+
+                    Canvas.SetTop(DataLabel, cy);
+                    Canvas.SetLeft(DataLabel, cx);
+                }
+
+                return;
+            }
+
+            var animSpeed = chart.View.AnimationsSpeed;
+
+            if (DataLabel != null)
+            {
+                DataLabel.UpdateLayout();
+
+                var cx = CorrectXLabel(current.ChartLocation.X - DataLabel.ActualWidth*.5, chart);
+                var cy = CorrectYLabel(current.ChartLocation.Y - DataLabel.ActualHeight*.5, chart);
+
+                DataLabel.CreateCanvasStoryBoardAndBegin(cx, cy, animSpeed);
+            }
+
+            Shape.BeginDoubleAnimation(nameof(FrameworkElement.Width), Diameter, animSpeed);
+            Shape.BeginDoubleAnimation(nameof(FrameworkElement.Height), Diameter, animSpeed);
+
+            Shape.CreateCanvasStoryBoardAndBegin(current.ChartLocation.X - Diameter*.5,
+                current.ChartLocation.Y - Diameter*.5, animSpeed);
+        }
+
+        public override void RemoveFromView(ChartCore chart)
+        {
+            chart.View.RemoveFromDrawMargin(HoverShape);
+            chart.View.RemoveFromDrawMargin(Shape);
+            chart.View.RemoveFromDrawMargin(DataLabel);
+        }
+
+        protected double CorrectXLabel(double desiredPosition, ChartCore chart)
+        {
+            if (desiredPosition + DataLabel.ActualWidth > chart.DrawMargin.Width)
+                desiredPosition -= desiredPosition + DataLabel.ActualWidth - chart.DrawMargin.Width;
+
+            if (desiredPosition < 0) desiredPosition = 0;
+
+            return desiredPosition;
+        }
+
+        protected double CorrectYLabel(double desiredPosition, ChartCore chart)
+        {
+            if (desiredPosition + DataLabel.ActualHeight > chart.DrawMargin.Height)
+                desiredPosition -= desiredPosition + DataLabel.ActualHeight - chart.DrawMargin.Height;
+
+            if (desiredPosition < 0) desiredPosition = 0;
+
+            return desiredPosition;
+        }
+
+        public override void OnHover(ChartPoint point)
+        {
+            var copy = Shape.Fill.Clone();
+            if (copy == null) return;
+            copy.Opacity -= .15;
+            Shape.Fill = copy;
+        }
+
+        public override void OnHoverLeave(ChartPoint point)
+        {
+            if (Shape?.Fill == null) return;
+            Shape.Fill.Opacity += .15;
+            if (point.Fill != null)
+            {
+                Shape.Fill = (Brush) point.Fill;
+            }
+            else
+            {
+                Shape.Fill = ((Series) point.SeriesView).Fill;
+            }
+        }
+    }
+}