项目结构调整

Others/Live-Charts-master/Core40/DateAxisCore.cs

@@ -0,0 +1,123 @@
+//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 LiveCharts.Charts;
+using LiveCharts.Definitions.Charts;
+using LiveCharts.Dtos;
+using LiveCharts.Helpers;
+
+namespace LiveCharts
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class DateAxisCore : WindowAxisCore
+    {
+        private DateTime _initialDateTime = DateTime.MinValue;
+        private PeriodUnits _period = PeriodUnits.Milliseconds;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DateAxisCore"/> class.
+        /// </summary>
+        /// <param name="view">The view.</param>
+        public DateAxisCore(IWindowAxisView view) : base(view)
+        {
+            CleanFactor = 3;
+        }
+
+        /// <inheritdoc />
+        public override Func<double, string> GetFormatter()
+        {
+            return FormatLabel;
+        }
+
+        internal override CoreMargin PrepareChart(AxisOrientation source, ChartCore chart)
+        {
+            // Get the current configued values from the view
+            _initialDateTime = ((IDateAxisView) View).InitialDateTime;
+            _period = ((IDateAxisView)View).Period;
+
+            return base.PrepareChart(source, chart);
+        }
+
+        private string FormatLabel(double x)
+        {
+            // For the points, we use the actual value based upon the period
+            var dateTime = GetdateTime(x);
+
+            switch (((IDateAxisView)View).Period)
+            {
+                case PeriodUnits.Seconds:
+                    return dateTime.ToString("G");
+
+                case PeriodUnits.Minutes:
+                    return dateTime.ToString("g");
+
+                case PeriodUnits.Hours:
+                    return dateTime.ToString("g");
+
+                case PeriodUnits.Days:
+                    return dateTime.ToString("d");
+
+                case PeriodUnits.Milliseconds:
+                    return dateTime.ToString("G") + dateTime.ToString(".fff");
+
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+        }
+
+        internal DateTime GetdateTime(double x)
+        {
+            // All our X values are based upon this starting point (configured by the user)
+            // Using this starting point, we can calculate the DateTime represented by this X value           
+            
+            // We use the series period (configured by the user) to determine which period unit to use to increase the reference date.
+            DateTime dateTime;
+
+            switch (_period)
+            {
+                case PeriodUnits.Milliseconds:
+                    dateTime = _initialDateTime.AddMilliseconds(Math.Floor(x));
+                    break;
+                case PeriodUnits.Seconds:
+                    dateTime = _initialDateTime.AddSeconds(Math.Floor(x));
+                    break;
+                case PeriodUnits.Minutes:
+                    dateTime = _initialDateTime.AddMinutes(Math.Floor(x));
+                    break;
+                case PeriodUnits.Hours:
+                    dateTime = _initialDateTime.AddHours(Math.Floor(x));
+                    break;
+                case PeriodUnits.Days:
+                    dateTime = _initialDateTime.AddDays(Math.Floor(x));
+                    break;
+
+                default:
+                    throw new ArgumentException();
+            }
+
+            return dateTime;
+        }
+    }
+}