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polish autodetection
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@@ -0,0 +1,54 @@
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using System.Windows;
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using System.Windows.Controls;
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namespace Azaion.Annotator.Extensions;
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public class ScrollViewerExtensions
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{
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public static readonly DependencyProperty AlwaysScrollToEndProperty =
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DependencyProperty.RegisterAttached("AlwaysScrollToEnd", typeof(bool), typeof(ScrollViewerExtensions), new PropertyMetadata(false, AlwaysScrollToEndChanged));
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private static bool _autoScroll;
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private static void AlwaysScrollToEndChanged(object sender, DependencyPropertyChangedEventArgs e)
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{
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if (sender is not ScrollViewer scroll)
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throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances.");
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var alwaysScrollToEnd = e.NewValue != null && (bool)e.NewValue;
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if (alwaysScrollToEnd)
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{
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scroll.ScrollToEnd();
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scroll.ScrollChanged += ScrollChanged;
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}
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else
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scroll.ScrollChanged -= ScrollChanged;
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}
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public static bool GetAlwaysScrollToEnd(ScrollViewer scroll)
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{
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if (scroll == null)
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throw new ArgumentNullException("scroll");
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return (bool)scroll.GetValue(AlwaysScrollToEndProperty);
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}
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public static void SetAlwaysScrollToEnd(ScrollViewer scroll, bool alwaysScrollToEnd)
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{
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if (scroll == null)
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throw new ArgumentNullException("scroll");
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scroll.SetValue(AlwaysScrollToEndProperty, alwaysScrollToEnd);
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}
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private static void ScrollChanged(object sender, ScrollChangedEventArgs e)
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{
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var scroll = sender as ScrollViewer;
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if (scroll == null)
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throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances.");
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if (e.ExtentHeightChange == 0)
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_autoScroll = scroll.VerticalOffset == scroll.ScrollableHeight;
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if (_autoScroll && e.ExtentHeightChange != 0)
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scroll.ScrollToVerticalOffset(scroll.ExtentHeight);
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}
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}
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@@ -47,11 +47,6 @@ public class VLCFrameExtractor(LibVLC libVLC)
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_width = videoTrack.Data.Video.Width;
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_height = videoTrack.Data.Video.Height;
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//rescaling to DEFAULT_WIDTH
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//TODO: probably rescaling is not necessary, should be checked
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//_width = DEFAULT_WIDTH;
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//_height = (uint)(DEFAULT_WIDTH * _height / (double)_width);
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_pitch = Align32(_width * RGBA_BYTES);
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_lines = Align32(_height);
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_mediaPlayer.SetRate(PLAYBACK_RATE);
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@@ -81,7 +76,6 @@ public class VLCFrameExtractor(LibVLC libVLC)
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yield return (frameInfo.Time, ms);
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Console.WriteLine($"Queue size: {FramesQueue.Count}");
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frameInfo.Bitmap?.Dispose();
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}
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else
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