65 lines
2.1 KiB
C#
65 lines
2.1 KiB
C#
using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using System.Windows.Threading;
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namespace ShrlAlgoToolkit.RevitAddins.Common.Controls
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{
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// WPF 的 ViewModel
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public class ProgressViewModel : INotifyPropertyChanged
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{
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private readonly CancellationTokenSource _cts;
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public Dispatcher UIDispatcher { get; set; }
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public Action CloseAction { get; set; }
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public ProgressViewModel(string title, CancellationTokenSource cts)
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{
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Title = title;
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_cts = cts;
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}
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private string _title;
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public string Title { get => _title; set => SetProperty(ref _title, value); }
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private string _message = "正在准备...";
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public string Message { get => _message; set => SetProperty(ref _message, value); }
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private double _progressValue;
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public double ProgressValue { get => _progressValue; set => SetProperty(ref _progressValue, value); }
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private double _maximum = 100;
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public double Maximum { get => _maximum; set => SetProperty(ref _maximum, value); }
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public void Cancel()
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{
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if (!_cts.IsCancellationRequested)
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{
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Message = "正在取消任务，请稍候...";
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_cts.Cancel();
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}
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}
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// 跨线程更新 UI
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public void Update(int current, int total, string message)
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{
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UIDispatcher?.InvokeAsync(() =>
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{
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ProgressValue = current;
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Maximum = total;
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if (!string.IsNullOrEmpty(message)) Message = message;
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});
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}
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public void UpdateMessage(string message)
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{
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UIDispatcher?.InvokeAsync(() => Message = message);
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}
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public event PropertyChangedEventHandler PropertyChanged;
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protected void SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = null)
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{
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field = value;
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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