public InfoOwnerData(InfoOwner item)
{
var sb = new StringBuilder();
using (var writer = XmlWriter.Create(sb, new XmlWriterSettings {
OmitXmlDeclaration = true
}))
{
item.WriteXml(writer);
}
ItemData = sb.ToString();
ItemLevel = item is Package ? Level.Package :
item is Round ? Level.Round :
item is Theme ? Level.Theme : Level.Question;
}
public InfoOwner GetItem()
{
InfoOwner item = ItemLevel switch
{
Level.Package => new Package(),
Level.Round => new Round(),
Level.Theme => new Theme(),
_ => new Question(),
};
using (var sr = new StringReader(ItemData))
{
using var reader = XmlReader.Create(sr);
reader.Read();
item.ReadXml(reader);
}
return(item);
}
/// <summary>
/// Получить полные данные для объекта, включая присоединённые элементы коллекций
/// </summary>
/// <returns></returns>
public void GetFullData(SIDocument document, InfoOwner owner)
{
var length = owner.Info.Authors.Count;
for (int i = 0; i < length; i++)
{
var docAuthor = document.GetLink(owner.Info.Authors, i);
if (docAuthor != null)
{
if (Authors == null)
{
Authors = new List <AuthorInfo>();
}
if (!Authors.Contains(docAuthor))
{
Authors.Add(docAuthor);
}
}
}
length = owner.Info.Sources.Count;
for (int i = 0; i < length; i++)
{
var docSource = document.GetLink(owner.Info.Sources, i);
if (docSource != null)
{
if (Sources == null)
{
Sources = new List <SourceInfo>();
}
if (!Sources.Contains(docSource))
{
Sources.Add(docSource);
}
}
}
}
private void AppendInfo(SIDocument doc, Paragraph paragraph, InfoOwner owner)
{
var count = owner.Info.Authors.Count;
if (count > 0)
{
paragraph.AppendLine().Append(string.Format("{0}{1}: ", Resources.BaseAuthors, count > 1 ? "ы" : ""));
paragraph.Append(string.Join(", ", doc.GetRealAuthors(owner.Info.Authors)).EndWithPoint());
}
count = owner.Info.Sources.Count;
if (count > 0)
{
paragraph.AppendLine().Append(string.Format("{0}{1}: ", Resources.BaseSources, count > 1 ? "и" : ""));
paragraph.Append(string.Join(", ", doc.GetRealSources(owner.Info.Sources)).EndWithPoint());
}
if (owner.Info.Comments.Text.Length > 0)
{
paragraph.AppendLine().Append(string.Format("{0}: ", Resources.Comments));
paragraph.Append(owner.Info.Comments.Text);
}
}
internal static void DoDrag(FrameworkElement host, QDocument active, InfoOwner item, InfoOwnerData itemData, Action beforeDrag = null, Action afterDrag = null)
{
if (host == null)
{
throw new ArgumentNullException(nameof(host));
}
if (active == null)
{
throw new ArgumentNullException(nameof(active));
}
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (itemData == null)
{
throw new ArgumentNullException(nameof(itemData));
}
itemData.GetFullData(active.Document, item);
var dataObject = new DataObject(itemData);
if (host.DataContext is RoundViewModel roundViewModel)
{
var packageViewModel = roundViewModel.OwnerPackage;
if (packageViewModel == null)
{
throw new ArgumentException(nameof(packageViewModel));
}
int index = packageViewModel.Rounds.IndexOf(roundViewModel);
active.BeginChange();
try
{
var sb = new StringBuilder();
using (var writer = XmlWriter.Create(sb))
{
roundViewModel.Model.WriteXml(writer);
}
dataObject.SetData("siqround", "1");
dataObject.SetData(DataFormats.Serializable, sb);
var result = DragDrop.DoDragDrop(host, dataObject, DragDropEffects.Move);
if (result == DragDropEffects.Move)
{
if (packageViewModel.Rounds[index] != roundViewModel)
{
index++;
}
packageViewModel.Rounds.RemoveAt(index);
active.CommitChange();
}
else
{
active.RollbackChange();
}
}
catch (Exception exc)
{
active.RollbackChange();
throw exc;
}
}
else
{
if (host.DataContext is ThemeViewModel themeViewModel)
{
roundViewModel = themeViewModel.OwnerRound;
if (roundViewModel == null)
{
throw new ArgumentException(nameof(roundViewModel));
}
int index = roundViewModel.Themes.IndexOf(themeViewModel);
active.BeginChange();
try
{
var sb = new StringBuilder();
using (var writer = XmlWriter.Create(sb))
{
themeViewModel.Model.WriteXml(writer);
}
dataObject.SetData("siqtheme", "1");
dataObject.SetData(DataFormats.Serializable, sb);
var result = DragDrop.DoDragDrop(host, dataObject, DragDropEffects.Move);
if (result == DragDropEffects.Move)
{
if (roundViewModel.Themes[index] != themeViewModel)
{
index++;
}
roundViewModel.Themes.RemoveAt(index);
}
active.CommitChange();
}
catch (Exception exc)
{
active.RollbackChange();
throw exc;
}
}
else
{
var questionViewModel = host.DataContext as QuestionViewModel;
themeViewModel = questionViewModel.OwnerTheme;
if (themeViewModel == null)
{
throw new ArgumentException(nameof(themeViewModel));
}
var index = themeViewModel.Questions.IndexOf(questionViewModel);
active.BeginChange();
try
{
var sb = new StringBuilder();
using (var writer = XmlWriter.Create(sb))
{
questionViewModel.Model.WriteXml(writer);
}
dataObject.SetData("siqquestion", "1");
dataObject.SetData(DataFormats.Serializable, sb);
beforeDrag?.Invoke();
DragDropEffects result;
try
{
result = DragDrop.DoDragDrop(host, dataObject, DragDropEffects.Move);
}
catch (InvalidOperationException)
{
result = DragDropEffects.None;
}
finally
{
host.Opacity = 1.0;
afterDrag?.Invoke();
}
if (result == DragDropEffects.Move)
{
if (themeViewModel.Questions[index] != questionViewModel)
{
index++;
}
themeViewModel.Questions.RemoveAt(index);
if (AppSettings.Default.ChangePriceOnMove)
{
RecountPrices(themeViewModel);
}
}
active.CommitChange();
}
catch (Exception exc)
{
active.RollbackChange();
throw exc;
}
}
}
}
