using Microsoft.Win32; using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Threading; namespace HashCalculator.GUI { /// /// MainWindow.xaml 的交互逻辑 /// public partial class MainWindow : Window { internal ViewModel ViewModel => (ViewModel)DataContext; private bool _autoscroll = true; public MainWindow() { InitializeComponent(); Translator.ProviderChanged += (s, e) => Dispatcher.Invoke(() => { ViewModel.NotifyCsfChange(); }); ViewModel.ShowCopyableBox += ViewModel_ShowCopyableBox; ViewModel.OpenFileDialog += ViewModel_OpenFileDialog; ViewModel.ClearTracer += ViewModel_ClearTracer; } private void ViewModel_ShowCopyableBox(object? sender, ShowCopyableBoxEventArgs e) { var title = e.Title; var getContent = e.GetContent; e.Completion = Dispatcher.InvokeAsync(() => { using var box = new CopyableBox(this, title, getContent); box.ShowDialog(); }).Task; } private void ViewModel_OpenFileDialog(object? sender, OpenFileDialogEventArgs e) { var sdkRoot = new OpenFileDialog { Title = e.Title, Filter = string.Join('|', e.Filters.Select(t => { if (t.Description is null) { return $"{t.Extension}|{t.Extension}"; } return $"{t.Description} ({t.Extension})|{t.Extension}"; })) }; e.Result = Dispatcher.InvokeAsync(() => sdkRoot.ShowDialog(this) is not true ? null : sdkRoot.FileName).Task; } private void OnButtomScrollViewerScrollChanged(object sender, ScrollChangedEventArgs e) { var scrollViewer = (ScrollViewer)sender; // User scroll event : set or unset auto-scroll mode if (e.ExtentHeightChange == 0) { // Content unchanged : user scroll event if (scrollViewer.VerticalOffset == scrollViewer.ScrollableHeight) { // Scroll bar is in bottom // Set auto-scroll mode _autoscroll = true; } else { // Scroll bar isn't in bottom // Unset auto-scroll mode _autoscroll = false; } } // Content scroll event : auto-scroll eventually if (_autoscroll && e.ExtentHeightChange != 0) { // Content changed and auto-scroll mode set // Autoscroll scrollViewer.ScrollToVerticalOffset(scrollViewer.ExtentHeight); } } private void OnInitialized(object sender, EventArgs e) { TracerListener.DataAvailaible += delegate { Dispatcher.InvokeAsync(() => { if (TracerListener.GetText() is not { Length: > 0 } text) { return; } LogPrefix.Visibility = Visibility.Visible; LogText.AppendText(text); ClearLogs.Visibility = Visibility.Visible; }); }; } private void ViewModel_ClearTracer(object? sender, EventArgs e) { LogPrefix.Visibility = Visibility.Collapsed; LogText.Clear(); ClearLogs.Visibility = Visibility.Collapsed; } } }