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chaojian-zhangchaojian-zhang
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Add project files.
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‎VideoTagPlayer.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.30204.135
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VideoTagPlayer", "VideoTagPlayer\VideoTagPlayer.csproj", "{E73F3C78-6E45-40B9-B6C7-3A01530ABEB0}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{E73F3C78-6E45-40B9-B6C7-3A01530ABEB0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{E73F3C78-6E45-40B9-B6C7-3A01530ABEB0}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{E73F3C78-6E45-40B9-B6C7-3A01530ABEB0}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{E73F3C78-6E45-40B9-B6C7-3A01530ABEB0}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {C6534F7A-544D-475C-857A-574CAD45E28D}
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EndGlobalSection
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EndGlobal

‎VideoTagPlayer/AddNoteWindow.xaml‎

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<Window x:Class="VideoTagPlayer.AddNoteWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:VideoTagPlayer"
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mc:Ignorable="d"
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Title="AddNoteWindow" Height="450" Width="800"
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DataContext="{Binding RelativeSource={RelativeSource self}}">
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<DockPanel LastChildFill="True">
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<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
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<Label Content="Time: "/>
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<Label Content="{Binding Location}"/>
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</StackPanel>
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<DockPanel DockPanel.Dock="Bottom">
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<Button Content="Remove" Click="RemoveButton_Click"/>
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<Button Content="Finish" Click="FinishButton_Click"/>
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</DockPanel>
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<TextBox AcceptsReturn="True" AcceptsTab="True" Text="{Binding TagContent}"></TextBox>
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</DockPanel>
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</Window>

‎VideoTagPlayer/AddNoteWindow.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Shapes;
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using VideoTagPlayer.Models;
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namespace VideoTagPlayer
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{
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/// <summary>
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/// Interaction logic for AddNoteWindow.xaml
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/// </summary>
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public partial class AddNoteWindow : Window, INotifyPropertyChanged
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{
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#region Properties
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public AddNoteWindow(VideoNote note, TimeSpan location)
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{
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Note = note;
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Location = location;
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InitializeComponent();
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}
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public AddNoteWindow(VideoNote note, NoteTag tag)
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{
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Note = note;
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Location = tag.Location;
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TagContent = tag.Content;
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InitializeComponent();
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}
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private VideoNote Note;
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#endregion
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#region View Properties
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private TimeSpan _Location;
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public TimeSpan Location { get => _Location; set => SetField(ref _Location, value); }
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private string _TagContent;
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public string TagContent { get => _TagContent; set => SetField(ref _TagContent, value); }
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#endregion
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#region Data Binding
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public event PropertyChangedEventHandler PropertyChanged;
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protected virtual void NotifyPropertyChanged([CallerMemberName] string propertyName = null)
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=> PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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protected bool SetField<type>(ref type field, type value, [CallerMemberName] string propertyName = null)
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{
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if (EqualityComparer<type>.Default.Equals(field, value)) return false;
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field = value;
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NotifyPropertyChanged(propertyName);
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return true;
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}
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#endregion
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#region Events
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private void RemoveButton_Click(object sender, RoutedEventArgs e)
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{
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var tag = Note.GetNoteAt(Location);
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if(tag != null)
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Note.RemoveNote(tag);
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}
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private void FinishButton_Click(object sender, RoutedEventArgs e)
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{
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Note.AddNoteAt(Location, TagContent);
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this.Close();
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}
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#endregion
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}
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}

‎VideoTagPlayer/App.config‎

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
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</startup>
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</configuration>

‎VideoTagPlayer/App.xaml‎

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<Application x:Class="VideoTagPlayer.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:VideoTagPlayer"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎VideoTagPlayer/App.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Data;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace VideoTagPlayer
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎VideoTagPlayer/CustomCommands.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Input;
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namespace VideoTagPlayer
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{
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public static class CustomCommands
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{
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#region UI Commands
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public static readonly RoutedUICommand OpenFile = new RoutedUICommand("Open file", "OpenFile", typeof(CustomCommands));
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public static readonly RoutedUICommand PlayPause = new RoutedUICommand("Play or pause", "PlayPause", typeof(CustomCommands));
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public static readonly RoutedUICommand AddNote = new RoutedUICommand("Add note at current time", "AddNote", typeof(CustomCommands));
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#endregion
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}
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}

‎VideoTagPlayer/MainWindow.xaml‎

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<Window x:Class="VideoTagPlayer.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:VideoTagPlayer"
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xmlns:wpf="clr-namespace:LibVLCSharp.WPF;assembly=LibVLCSharp.WPF"
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mc:Ignorable="d"
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Title="Video Tag Player" Height="450" Width="800"
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Closing="Window_Closing"
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DataContext="{Binding RelativeSource={RelativeSource self}}">
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<Window.CommandBindings>
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<CommandBinding Command="Open" CanExecute="OpenFileCommand_CanExecute" Executed="OpenFileCommand_Executed"/>
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<CommandBinding Command="local:CustomCommands.PlayPause" CanExecute="PlayPauseCommand_CanExecute" Executed="PlayPauseCommand_Executed"/>
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<CommandBinding Command="local:CustomCommands.AddNote" CanExecute="AddNoteCommand_CanExecute" Executed="AddNoteCommand_Executed"/>
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</Window.CommandBindings>
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<Window.InputBindings>
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<KeyBinding Key="F1" Command="Open"/>
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<KeyBinding Key="Space" Command="local:CustomCommands.PlayPause"/>
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<KeyBinding Key="F2" Command="local:CustomCommands.AddNote"/>
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</Window.InputBindings>
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<Grid>
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<wpf:VideoView x:Name="VideoView" Loaded="VideoView_Loaded">
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<Grid>
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<TextBlock x:Name="IntroTextBlock" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="#FFAAAAAA" Visibility="Visible">
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F1 to Open File<LineBreak/>
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Space to Play/Pause<LineBreak/>
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F2 to Add Note at Current Location<LineBreak/>
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Tags are automatically saved.
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</TextBlock>
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<StackPanel Orientation="Horizontal" HorizontalAlignment="Left" VerticalAlignment="Bottom">
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<Label Content="{Binding CurrentTime}"/>
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<Button x:Name="OpenTagButton" Content="Open Tag" Visibility="Collapsed" Click="OpenTagButton_Click"/>
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</StackPanel>
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</Grid>
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</wpf:VideoView>
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</Grid>
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</Window>

‎VideoTagPlayer/MainWindow.xaml.cs‎

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using LibVLCSharp.Shared;
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using Microsoft.Win32;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Media.TextFormatting;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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using VideoTagPlayer.Models;
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using MediaPlayer = LibVLCSharp.Shared.MediaPlayer;
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namespace VideoTagPlayer
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{
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/// <summary>
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/// Interaction logic for MainWindow.xaml
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/// </summary>
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public partial class MainWindow : Window, INotifyPropertyChanged
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{
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#region Components
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LibVLC _LibVLC;
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MediaPlayer _MediaPlayer;
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#endregion
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#region Construction
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public MainWindow()
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{
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InitializeComponent();
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}
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#endregion
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#region Properties
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public VideoNote Note { get; set; }
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#endregion
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#region View Properties
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private TimeSpan _CurrentTime;
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public TimeSpan CurrentTime { get => _CurrentTime; set => SetField(ref _CurrentTime, value); }
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private NoteTag Tag { get; set; }
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#endregion
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#region Events
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private void VideoView_Loaded(object sender, RoutedEventArgs e)
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{
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Core.Initialize();
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// Initialize components
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_LibVLC = new LibVLC();
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_MediaPlayer = new MediaPlayer(_LibVLC);
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// Setup media player
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VideoView.MediaPlayer = _MediaPlayer;
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_MediaPlayer.TimeChanged += _MediaPlayer_TimeChanged;
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}
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private void _MediaPlayer_TimeChanged(object sender, MediaPlayerTimeChangedEventArgs e)
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{
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CurrentTime = TimeSpan.FromSeconds(_MediaPlayer.Time / 1000);
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if(Note != null && Note.GetNoteAt(CurrentTime) != null)
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{
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Tag = Note.GetNoteAt(CurrentTime);
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Dispatcher.Invoke(() => OpenTagButton.Visibility = Visibility.Visible);
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}
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else
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{
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Dispatcher.Invoke(() => OpenTagButton.Visibility = Visibility.Collapsed);
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}
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}
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private void Window_Closing(object sender, CancelEventArgs e)
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{
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if(Note!=null)
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Note.Save();
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}
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private void OpenTagButton_Click(object sender, RoutedEventArgs e)
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{
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AddNoteWindow noteWindow = new AddNoteWindow(Note, Tag);
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noteWindow.Owner = this;
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noteWindow.Show();
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}
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#endregion
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#region Commands
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private void OpenFileCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
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=> e.CanExecute = true;
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private void OpenFileCommand_Executed(object sender, ExecutedRoutedEventArgs e)
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{
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OpenFileDialog dialog = new OpenFileDialog();
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if(dialog.ShowDialog() == true)
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{
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// Initialize note
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Note = new VideoNote(dialog.FileName);
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// Start play
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IntroTextBlock.Visibility = Visibility.Collapsed;
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_MediaPlayer.Play(new Media(_LibVLC, new Uri(dialog.FileName)));
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}
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}
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private void PlayPauseCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
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=> e.CanExecute = true;
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private void PlayPauseCommand_Executed(object sender, ExecutedRoutedEventArgs e)
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{
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if (_MediaPlayer.IsPlaying)
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_MediaPlayer.Pause();
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else if(_MediaPlayer.WillPlay)
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_MediaPlayer.Play();
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}
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private void AddNoteCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
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=> e.CanExecute = true;
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private void AddNoteCommand_Executed(object sender, ExecutedRoutedEventArgs e)
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{
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if(_MediaPlayer.WillPlay)
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{
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_MediaPlayer.Pause();
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AddNoteWindow noteWindow = new AddNoteWindow(Note, TimeSpan.FromSeconds(_MediaPlayer.Time / 1000));
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noteWindow.Owner = this;
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noteWindow.Show();
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noteWindow.Closed += (o, v) => { _MediaPlayer.Play(); };
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}
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}
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#endregion
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#region Data Binding
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public event PropertyChangedEventHandler PropertyChanged;
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protected virtual void NotifyPropertyChanged([CallerMemberName] string propertyName = null)
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=> PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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protected bool SetField<type>(ref type field, type value, [CallerMemberName] string propertyName = null)
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{
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if (EqualityComparer<type>.Default.Equals(field, value)) return false;
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field = value;
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NotifyPropertyChanged(propertyName);
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return true;
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}
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#endregion
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}
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}

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