/// <summary>
/// 从复制的ViewModel类改变值.
/// </summary>
public void CopyFrom(ComposePhotoViewModel source)
{
this.Name = source.Name;
this.PhotoDuration = source.PhotoDuration;
this.TransitionDuration = source.TransitionDuration;
if (source.Transition != null)
{
this.Transition = source.Transition.Clone();
}
this.MediaStream = source.MediaStream;
}
/// <summary>
/// 将实体类改变为ViewModel类.
/// </summary>
public static ComposePhotoViewModel CreateFromModel(Photo model)
{
ComposePhotoViewModel viewModel = new ComposePhotoViewModel()
{
Name = model.Name,
MediaStream = model.ThumbnailStream,
PhotoDuration = (int)(model.PhotoDuration.TotalSeconds)
};
if (model.Transition != null)
{
viewModel.Transition = model.Transition;
viewModel.TransitionDuration = (int)(model.Transition.TransitionDuration.TotalSeconds);
}
return viewModel;
}
/// <summary>
/// 将实体类改变为ViewModel类.
/// </summary>
public static ComposePhotoViewModel CreateFromModel(Photo model)
{
ComposePhotoViewModel viewModel = new ComposePhotoViewModel()
{
Name = model.Name,
MediaStream = model.ThumbnailStream,
PhotoDuration = (int)(model.PhotoDuration.TotalSeconds)
};
if (model.Transition != null)
{
viewModel.Transition = model.Transition;
viewModel.TransitionDuration = (int)(model.Transition.TransitionDuration.TotalSeconds);
}
return(viewModel);
}
/// <summary>
/// 复制view model.
/// </summary>
/// <returns>view model备份.</returns>
public ComposePhotoViewModel CopyTo()
{
ComposePhotoViewModel copy = new ComposePhotoViewModel()
{
Name = this.Name,
PhotoDuration = this.PhotoDuration,
TransitionDuration = this.TransitionDuration,
MediaStream = this.MediaStream
};
if (this.Transition != null)
{
copy.Transition = this.Transition.Clone();
}
return(copy);
}
private void EditPhotoButton_Click(object sender, System.EventArgs e)
{
if (this.photoListBox.SelectedItem != null && this.photoListBox.SelectedItem is ComposePhotoViewModel)
{
this.photoListBox.IsEnabled = false;
// 备份视图模型, 因此我们可以撤销更新操作.
this._viewModelBackup = ((ComposePhotoViewModel)this.photoListBox.SelectedItem).CopyTo();
this.ShowEditPanelStoryboard.Begin();
}
}
/// <summary>
/// 从复制的ViewModel类改变值.
/// </summary>
public void CopyFrom(ComposePhotoViewModel source)
{
this.Name = source.Name;
this.PhotoDuration = source.PhotoDuration;
this.TransitionDuration = source.TransitionDuration;
if (source.Transition != null)
{
this.Transition = source.Transition.Clone();
}
this.MediaStream = source.MediaStream;
}
/// <summary>
/// 复制view model.
/// </summary>
/// <returns>view model备份.</returns>
public ComposePhotoViewModel CopyTo()
{
ComposePhotoViewModel copy = new ComposePhotoViewModel()
{
Name = this.Name,
PhotoDuration = this.PhotoDuration,
TransitionDuration = this.TransitionDuration,
MediaStream = this.MediaStream
};
if (this.Transition != null)
{
copy.Transition = this.Transition.Clone();
}
return copy;
}