89 lines
2.1 KiB
C#
89 lines
2.1 KiB
C#
using System.ComponentModel;
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using MusicMetaTagger.Core.Model;
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using MusicMetaTagger.Core.Queries;
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namespace MusicMetaTagger.UI
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{
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public class TrackQueryStatus : TrackQuery, INotifyPropertyChanged
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{
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private int _percentProgress;
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private string _status;
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///<summary>
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/// Occurs when a property value changes.
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///</summary>
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public event PropertyChangedEventHandler PropertyChanged;
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/// <summary>
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/// Gets or sets the status.
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/// </summary>
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/// <value>The status.</value>
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public string Status
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{
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get { return _status; }
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set
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{
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if (_status == null && value == null)
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{
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return;
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}
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if ((_status == null) || !_status.Equals(value))
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{
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_status = value + " <- " + _status;
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SignalPropertyChanged("Status");
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}
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}
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}
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public void UpdateStatus(StatusEventArgs data)
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{
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Status = data.Status;
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}
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/// <summary>
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/// Gets or sets the progress. 0 to 100.
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/// </summary>
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/// <value>The progress.</value>
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public int PercentProgress
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{
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get { return _percentProgress; }
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set { CheckPropertyChangedValueType("PercentProgress", ref _percentProgress, ref value); }
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}
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/// <summary>
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/// Checks if the property (propertyName) has been updated or changed.
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/// </summary>
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/// <param name = "propertyName">Name of the property.</param>
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/// <param name = "oldValue">The old value.</param>
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/// <param name = "newValue">The new value.</param>
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/// <returns>True if the value was updated, false otherwise.</returns>
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protected bool CheckPropertyChangedValueType<T>(string propertyName, ref T oldValue, ref T newValue) where T : struct
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{
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if (!oldValue.Equals(newValue))
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{
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oldValue = newValue;
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SignalPropertyChanged(propertyName);
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return true;
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}
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return false;
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}
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/// <summary>
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/// Creates the event that a property has changed value
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/// </summary>
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/// <param name = "propertyName"></param>
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protected void SignalPropertyChanged(string propertyName)
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{
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if (PropertyChanged != null)
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{
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PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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} |