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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="QueueViewModel.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 Preview View Model
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using System.Windows;
using HandBrake.ApplicationServices.Model;
using Services.Interfaces;
using System.Collections.ObjectModel;
using HandBrake.ApplicationServices.Services.Interfaces;
using System.ComponentModel.Composition;
using Interfaces;
using Caliburn.Micro;
/// <summary>
/// The Preview View Model
/// </summary>
[Export(typeof(IQueueViewModel))]
public class QueueViewModel : ViewModelBase, IQueueViewModel
{
#region Private Fields
/// <summary>
/// Queue Processor Backing field
/// </summary>
private readonly IQueueProcessor queueProcessor;
/// <summary>
/// The Error Service Backing field
/// </summary>
private readonly IErrorService errorService;
/// <summary>
/// Jobs pending backing field
/// </summary>
private string jobsPending;
/// <summary>
/// Job Status Backing field.
/// </summary>
private string jobStatus;
/// <summary>
/// IsEncoding Backing field
/// </summary>
private bool isEncoding;
#endregion
/// <summary>
/// Initializes a new instance of the <see cref="QueueViewModel"/> class.
/// </summary>
/// <param name="windowManager">
/// The window manager.
/// </param>
/// <param name="queueProcessor">
/// The Queue Processor Service
/// </param>
/// <param name="errorService">
/// The Error Service
/// </param>
public QueueViewModel(IWindowManager windowManager, IQueueProcessor queueProcessor, IErrorService errorService)
: base(windowManager)
{
this.queueProcessor = queueProcessor;
this.errorService = errorService;
this.Title = "Queue";
this.JobsPending = "No encodes pending";
this.JobStatus = "There are no jobs currently encoding";
}
public ObservableCollection<QueueTask> QueueJobs
{
get { return this.queueProcessor.QueueManager.Queue; }
}
/// <summary>
/// Gets or sets IsEncoding.
/// </summary>
public bool IsEncoding
{
get
{
return this.isEncoding;
}
set
{
this.isEncoding = value;
this.NotifyOfPropertyChange("IsEncoding");
}
}
/// <summary>
/// Gets or sets JobStatus.
/// </summary>
public string JobStatus
{
get
{
return this.jobStatus;
}
set
{
this.jobStatus = value;
this.NotifyOfPropertyChange("JobStatus");
}
}
/// <summary>
/// Gets or sets JobsPending.
/// </summary>
public string JobsPending
{
get
{
return this.jobsPending;
}
set
{
this.jobsPending = value;
this.NotifyOfPropertyChange("JobsPending");
}
}
/// <summary>
/// Start Encode
/// </summary>
public void StartEncode()
{
if (this.queueProcessor.QueueManager.Count == 0)
{
this.errorService.ShowMessageBox("There are no pending jobs.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
this.queueProcessor.Start();
}
/// <summary>
/// Pause Encode
/// </summary>
public void PauseEncode()
{
this.queueProcessor.Pause();
}
/// <summary>
/// Remove a Job from the queue
/// </summary>
/// <param name="task">
/// The Job to remove from the queue
/// </param>
public void RemoveJob(QueueTask task)
{
if (task.Status == QueueItemStatus.InProgress)
{
MessageBoxResult result = this.errorService.ShowMessageBox(
"This encode is currently in progress. If you delete it, the encode will be stoped. Are you sure you wish to proceed?",
"Warning", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (result == MessageBoxResult.Yes)
{
this.queueProcessor.QueueManager.Remove(task);
}
}
else
{
this.queueProcessor.QueueManager.Remove(task);
}
this.JobsPending = string.Format("{0} jobs pending", this.queueProcessor.QueueManager.Count);
}
public override void OnLoad()
{
this.queueProcessor.JobProcessingStarted += queueProcessor_JobProcessingStarted;
this.queueProcessor.QueueCompleted += queueProcessor_QueueCompleted;
this.queueProcessor.QueuePaused += queueProcessor_QueuePaused;
this.queueProcessor.QueueManager.QueueChanged += QueueManager_QueueChanged;
// Setup the window to the correct state.
this.IsEncoding = queueProcessor.EncodeService.IsEncoding;
this.JobsPending = string.Format("{0} jobs pending", this.queueProcessor.QueueManager.Count);
base.OnLoad();
}
/// <summary>
/// Close this window.
/// </summary>
public void Close()
{
this.TryClose();
}
/// <summary>
/// Override the OnActive to run the Screen Loading code in the view model base.
/// </summary>
protected override void OnActivate()
{
this.Load();
base.OnActivate();
}
private void queueProcessor_QueuePaused(object sender, System.EventArgs e)
{
this.JobStatus = "Queue Paused";
this.JobsPending = string.Format("{0} jobs pending", this.queueProcessor.QueueManager.Count);
}
private void queueProcessor_QueueCompleted(object sender, System.EventArgs e)
{
this.JobStatus = "Queue Completed";
this.JobsPending = string.Format("{0} jobs pending", this.queueProcessor.QueueManager.Count);
}
private void queueProcessor_JobProcessingStarted(object sender, HandBrake.ApplicationServices.EventArgs.QueueProgressEventArgs e)
{
this.JobStatus = "Queue Started";
this.JobsPending = string.Format("{0} jobs pending", this.queueProcessor.QueueManager.Count);
this.queueProcessor.EncodeService.EncodeStatusChanged += EncodeService_EncodeStatusChanged;
}
private void EncodeService_EncodeStatusChanged(object sender, HandBrake.ApplicationServices.EventArgs.EncodeProgressEventArgs e)
{
this.JobStatus = string.Format(
"Encoding: Pass {0} of {1}, {2:00.00}%, FPS: {3:000.0}, Avg FPS: {4:000.0}, Time Remaining: {5}, Elapsed: {6:hh\\:mm\\:ss}",
e.Task,
e.TaskCount,
e.PercentComplete,
e.CurrentFrameRate,
e.AverageFrameRate,
e.EstimatedTimeLeft,
e.ElapsedTime);
}
private void QueueManager_QueueChanged(object sender, System.EventArgs e)
{
// TODO
}
}
}
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