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annotate MetroWpf/MetroWpf.Xaml/Converters/AgeToReadableStringConverter.cs @ 65:5d0c5cc83a7a

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Click event handler added
author Steven Hollidge <stevenhollidge@hotmail.com>
date Sun, 22 Apr 2012 14:21:33 +0100
parents 060f02cd4591
children
rev   line source
15
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1 using System;
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2 using System.Windows.Data;
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3 using System.Globalization;
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4
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5 namespace MetroWpf.Xaml.Converters
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6 {
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7 public class AgeToReadableTextConverter: IValueConverter
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8 {
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9 #region IValueConverter Members
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10
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11 /// <summary>
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12 /// Converts a DateTime into a string.
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13 /// </summary>
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14 /// <param name="value">The DateTime to convert.</param>
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15 /// <param name="targetType">The target type of the conversion.</param>
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16 /// <param name="parameter">The conversion parameter.</param>
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17 /// <param name="culture">The conversion culture.</param>
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18 /// <returns>A string representation of the provided date and time.</returns>
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19 public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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20 {
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21 string dateTimeString = string.Empty;
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22 DateTime inputDateTime = DateTime.MinValue;
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23
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24 if (value != null)
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25 {
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26 if (DateTime.TryParse(value.ToString(), CultureInfo.InvariantCulture, DateTimeStyles.None, out inputDateTime))
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27 {
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28 var diff = DateTime.Now - inputDateTime;
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29 if (diff.TotalDays >= ( 1.0 - .5/24 ))
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30 {
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31 if (diff.TotalDays > 1.25)
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32 dateTimeString = string.Format("{0} days ago", RoundToHalf(diff.TotalDays));
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33 else
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34 dateTimeString = "1 day ago";
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35 }
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36 else if (diff.TotalHours > 8)
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37 dateTimeString = string.Format("{0} hours ago", RoundToHalf(diff.TotalHours));
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38 else if (diff.TotalHours > 1)
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39 dateTimeString = string.Format("{0} hours {1} minutes ago", diff.Hours, diff.Minutes);
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40 else
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41 dateTimeString = string.Format("{0} minutes ago", diff.Minutes);
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42 }
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43 }
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44
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45 return dateTimeString;
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46 }
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47
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48 private double RoundToHalf(double p)
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49 {
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50 int doubleValue = (int)( (p+.25) * 2 );
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51 return (double)doubleValue / 2.0;
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52 }
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53
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54 /// <summary>
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55 /// Converts a date and time string into a DateTime object. Not implemented.
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56 /// </summary>
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57 /// <param name="value">The string to convert.</param>
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58 /// <param name="targetType">The target type of the conversion.</param>
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59 /// <param name="parameter">The conversion parameter.</param>
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60 /// <param name="culture">The conversion culture.</param>
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61 /// <returns>A DateTime object of the provided string. Not implemented.</returns>
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62 public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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63 {
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64 throw new NotImplementedException();
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65 }
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66
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67 #endregion
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68 }
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69
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70 }