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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="StaticPreviewViewModel.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 Static Preview View Model
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using System;
using System.Windows.Media.Imaging;
using HandBrake.ApplicationServices.Model;
using HandBrake.ApplicationServices.Services.Interfaces;
using HandBrakeWPF.ViewModels.Interfaces;
/// <summary>
/// The Static Preview View Model
/// </summary>
public class StaticPreviewViewModel : ViewModelBase, IStaticPreviewViewModel
{
#region Fields
/// <summary>
/// The scan service.
/// </summary>
private readonly IScan scanService;
/// <summary>
/// The height.
/// </summary>
private int height;
/// <summary>
/// The preview image.
/// </summary>
private BitmapImage previewImage;
/// <summary>
/// The selected preview image.
/// </summary>
private int selectedPreviewImage;
/// <summary>
/// The width.
/// </summary>
private int width;
#endregion
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="StaticPreviewViewModel"/> class.
/// </summary>
/// <param name="scanService">
/// The scan service.
/// </param>
public StaticPreviewViewModel(IScan scanService)
{
this.scanService = scanService;
this.selectedPreviewImage = 1;
}
#endregion
#region Public Properties
/// <summary>
/// Gets or sets the height.
/// </summary>
public int Height
{
get
{
return this.height;
}
set
{
if (value == this.height)
{
return;
}
this.height = value;
this.NotifyOfPropertyChange(() => this.Height);
}
}
/// <summary>
/// Gets or sets the preview image.
/// </summary>
public BitmapImage PreviewImage
{
get
{
return this.previewImage;
}
set
{
if (Equals(value, this.previewImage))
{
return;
}
this.previewImage = value;
this.NotifyOfPropertyChange(() => this.PreviewImage);
}
}
/// <summary>
/// Gets or sets the selected preview image.
/// </summary>
public int SelectedPreviewImage
{
get
{
return this.selectedPreviewImage;
}
set
{
if (value == this.selectedPreviewImage)
{
return;
}
this.selectedPreviewImage = value;
this.NotifyOfPropertyChange(() => this.SelectedPreviewImage);
this.UpdatePreviewFrame();
}
}
/// <summary>
/// Gets or sets the task.
/// </summary>
public EncodeTask Task { get; set; }
/// <summary>
/// Gets the total previews.
/// </summary>
public int TotalPreviews
{
get
{
return this.UserSettingService.GetUserSetting<int>(UserSettingConstants.PreviewScanCount) - 1;
}
}
/// <summary>
/// Gets or sets the width.
/// </summary>
public int Width
{
get
{
return this.width;
}
set
{
if (value == this.width)
{
return;
}
this.width = value;
this.NotifyOfPropertyChange(() => this.Width);
}
}
#endregion
#region Public Methods and Operators
public void UpdatePreviewFrame(EncodeTask task)
{
this.Task = task;
this.UpdatePreviewFrame();
this.DisplayName = "Picture Preview";
}
/// <summary>
/// The update preview frame.
/// </summary>
public void UpdatePreviewFrame()
{
BitmapImage image = this.scanService.GetPreview(this.Task, this.SelectedPreviewImage);
if (image != null)
{
this.Width = (int)Math.Ceiling(image.Width);
this.Height = (int)Math.Ceiling(image.Height);
this.PreviewImage = image;
}
}
#endregion
}
}
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