项目结构调整

Others/Live-Charts-master/UwpView/PieChart.cs

@@ -0,0 +1,118 @@
+//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 System;
+using Windows.Foundation;
+using Windows.UI.Xaml;
+using LiveCharts.Charts;
+using LiveCharts.Definitions.Charts;
+using LiveCharts.Uwp.Charts.Base;
+using LiveCharts.Uwp.Points;
+using LiveCharts.Uwp.Components;
+
+namespace LiveCharts.Uwp
+{
+    /// <summary>
+    /// The pie chart compares mainly the distribution of the data according to different series.
+    /// </summary>
+    public class PieChart : Chart, IPieChart
+    {
+        /// <summary>
+        /// Initializes a new instance of PieChart class
+        /// </summary>
+        public PieChart()
+        {
+            var freq = DisableAnimations ? TimeSpan.FromMilliseconds(10) : AnimationsSpeed;
+            var updater = new Components.ChartUpdater(freq);
+            ChartCoreModel = new PieChartCore(this, updater);
+
+            this.SetIfNotSet(SeriesProperty, new SeriesCollection());
+        }
+
+        /// <summary>
+        /// The inner radius property
+        /// </summary>
+        public static readonly DependencyProperty InnerRadiusProperty = DependencyProperty.Register(
+            "InnerRadius", typeof (double), typeof (PieChart), new PropertyMetadata(0d, CallChartUpdater()));
+        /// <summary>
+        /// Gets or sets the pie inner radius, increasing this property will result in a doughnut chart.
+        /// </summary>
+        public double InnerRadius
+        {
+            get { return (double) GetValue(InnerRadiusProperty); }
+            set { SetValue(InnerRadiusProperty, value); }
+        }
+
+        /// <summary>
+        /// The starting rotation angle property
+        /// </summary>
+        public static readonly DependencyProperty StartingRotationAngleProperty = DependencyProperty.Register(
+            "StartingRotationAngle", typeof (double), typeof (PieChart), new PropertyMetadata(45d, CallChartUpdater()));
+        /// <summary>
+        /// Gets or sets the starting rotation angle in degrees.
+        /// </summary>
+        public double StartingRotationAngle
+        {
+            get { return (double) GetValue(StartingRotationAngleProperty); }
+            set { SetValue(StartingRotationAngleProperty, value); }
+        }
+
+        /// <summary>
+        /// The hover push out property
+        /// </summary>
+        public static readonly DependencyProperty HoverPushOutProperty = DependencyProperty.Register(
+            "HoverPushOut", typeof (double), typeof (PieChart), new PropertyMetadata(5d));
+        /// <summary>
+        /// Gets or sets the units that a slice is pushed out when a user moves the mouse over data point.
+        /// </summary>
+        public double HoverPushOut
+        {
+            get { return (double) GetValue(HoverPushOutProperty); }
+            set { SetValue(HoverPushOutProperty, value); }
+        }
+
+        /// <summary>
+        /// Gets the tooltip position.
+        /// </summary>
+        /// <param name="senderPoint">The sender point.</param>
+        /// <returns></returns>
+        protected internal override Point GetTooltipPosition(ChartPoint senderPoint)
+        {
+            var pieSlice = ((PiePointView) senderPoint.View).Slice;
+
+            var alpha = pieSlice.RotationAngle + pieSlice.WedgeAngle * .5 + 180;
+            var alphaRad = alpha * Math.PI / 180;
+            var sliceMidAngle = alpha - 180;
+
+            DataTooltip.UpdateLayout();
+
+            var y = DrawMargin.ActualHeight*.5 +
+                    (sliceMidAngle > 90 && sliceMidAngle < 270 ? -1 : 0)*DataTooltip.ActualHeight -
+                    Math.Cos(alphaRad)*15;
+            var x = DrawMargin.ActualWidth*.5 +
+                    (sliceMidAngle > 0 && sliceMidAngle < 180 ? -1 : 0)*DataTooltip.ActualWidth +
+                    Math.Sin(alphaRad)*15;
+
+            return new Point(x, y);
+        }
+    }
+}