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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="ChaptersViewModel.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// The Chapters View Model
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel.Composition;
using System.IO;
using Caliburn.Micro;
using HandBrake.ApplicationServices.Exceptions;
using HandBrake.ApplicationServices.Model;
using HandBrake.ApplicationServices.Model.Encoding;
using HandBrake.ApplicationServices.Parsing;
using HandBrake.ApplicationServices.Services.Interfaces;
using HandBrakeWPF.ViewModels.Interfaces;
using Ookii.Dialogs.Wpf;
/// <summary>
/// The Chapters View Model
/// </summary>
[Export(typeof(IChaptersViewModel))]
public class ChaptersViewModel : ViewModelBase, IChaptersViewModel
{
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="ChaptersViewModel"/> class.
/// </summary>
/// <param name="windowManager">
/// The window manager.
/// </param>
/// <param name="userSettingService">
/// The user Setting Service.
/// </param>
public ChaptersViewModel(IWindowManager windowManager, IUserSettingService userSettingService)
{
this.Task = new EncodeTask();
}
#endregion
#region Public Properties
/// <summary>
/// Gets or sets Task.
/// </summary>
public EncodeTask Task { get; set; }
/// <summary>
/// Gets or sets a value indicating whether chapter markers are enabled.
/// </summary>
public bool IncludeChapterMarkers
{
get
{
return this.Task.IncludeChapterMarkers;
}
set
{
this.Task.IncludeChapterMarkers = value;
this.NotifyOfPropertyChange(() => this.IncludeChapterMarkers);
}
}
#endregion
#region Properties
/// <summary>
/// Gets or sets SourceChapterList.
/// </summary>
private ObservableCollection<Chapter> SourceChapterList { get; set; }
#endregion
#region Public Methods
/// <summary>
/// Export a CSV file.
/// </summary>
public void Export()
{
var saveFileDialog = new VistaSaveFileDialog
{
Filter = "Csv File|*.csv",
DefaultExt = "csv",
CheckPathExists = true
};
saveFileDialog.ShowDialog();
if (!string.IsNullOrEmpty(saveFileDialog.FileName))
{
this.ExportChaptersToCSV(saveFileDialog.FileName);
}
}
/// <summary>
/// Export the Chapter Markers to a CSV file
/// </summary>
/// <param name="filename">
/// The filename.
/// </param>
/// <exception cref="GeneralApplicationException">
/// Thrown when exporting fails.
/// </exception>
public void ExportChaptersToCSV(string filename)
{
try
{
string csv = string.Empty;
foreach (ChapterMarker row in this.Task.ChapterNames)
{
csv += row.ChapterNumber.ToString();
csv += ",";
csv += row.ChapterName.Replace(",", "\\,");
csv += Environment.NewLine;
}
var file = new StreamWriter(filename);
file.Write(csv);
file.Close();
file.Dispose();
}
catch (Exception exc)
{
throw new GeneralApplicationException(
"Unable to save Chapter Makrers file! ",
"Chapter marker names will NOT be saved in your encode.",
exc);
}
}
/// <summary>
/// Import a CSV file
/// </summary>
public void Import()
{
var dialog = new VistaOpenFileDialog { Filter = "CSV files (*.csv)|*.csv", CheckFileExists = true };
dialog.ShowDialog();
string filename = dialog.FileName;
if (string.IsNullOrEmpty(filename))
{
return;
}
IDictionary<int, string> chapterMap = new Dictionary<int, string>();
try
{
var sr = new StreamReader(filename);
string csv = sr.ReadLine();
while (csv != null)
{
if (csv.Trim() != string.Empty)
{
csv = csv.Replace("\\,", "<!comma!>");
string[] contents = csv.Split(',');
int chapter;
int.TryParse(contents[0], out chapter);
chapterMap.Add(chapter, contents[1].Replace("<!comma!>", ","));
}
csv = sr.ReadLine();
}
}
catch (Exception)
{
// Do Nothing
}
// Now iterate over each chatper we have, and set it's name
foreach (ChapterMarker item in this.Task.ChapterNames)
{
string chapterName;
chapterMap.TryGetValue(item.ChapterNumber, out chapterName);
item.ChapterName = chapterName;
// TODO force a fresh of this property
}
}
/// <summary>
/// Setup this window for a new source
/// </summary>
/// <param name="title">
/// The title.
/// </param>
/// <param name="preset">
/// The preset.
/// </param>
/// <param name="task">
/// The task.
/// </param>
public void SetSource(Title title, Preset preset, EncodeTask task)
{
this.Task = task;
this.NotifyOfPropertyChange(() => this.Task);
this.IncludeChapterMarkers = preset.Task.IncludeChapterMarkers;
this.SetSourceChapters(title.Chapters);
}
/// <summary>
/// Setup this tab for the specified preset.
/// </summary>
/// <param name="preset">
/// The preset.
/// </param>
/// <param name="task">
/// The task.
/// </param>
public void SetPreset(Preset preset, EncodeTask task)
{
this.Task = task;
this.NotifyOfPropertyChange(() => this.Task);
}
/// <summary>
/// Set the Source Chapters List
/// </summary>
/// <param name="sourceChapters">
/// The source chapters.
/// </param>
public void SetSourceChapters(IEnumerable<Chapter> sourceChapters)
{
// Cache the chapters in this screen
this.SourceChapterList = new ObservableCollection<Chapter>(sourceChapters);
this.Task.ChapterNames.Clear();
// Then Add new Chapter Markers.
int counter = 1;
foreach (Chapter chapter in this.SourceChapterList)
{
string chapterName = string.IsNullOrEmpty(chapter.ChapterName) ? string.Format("Chapter {0}", counter) : chapter.ChapterName;
var marker = new ChapterMarker(chapter.ChapterNumber, chapterName);
this.Task.ChapterNames.Add(marker);
counter += 1;
}
}
#endregion
}
}
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