/// <summary>
/// Cloase and save diagrams after session end
/// </summary>
/// <param name="window">Main app window</param>
/// <returns>Task for async execution</returns>
public static async Task CloseDiagramsOnDisconnect(MainWindow window)
{
var forSave = new Queue <DatabaseModelDesignerViewModel>();
IEnumerable <LayoutContent> contents =
window.MainDocumentPane.ChildrenSorted.Where(t => t.Content is DatabaseModelDesigner).ToList();
var facade = new DiagramFacade(new DatabaseModelDesigner());
bool yesToAll = false;
foreach (LayoutContent content in contents)
{
DatabaseModelDesigner designer = content.Content as DatabaseModelDesigner;
if (designer == null)
{
continue;
}
if (yesToAll)
{
forSave.Enqueue(designer.ViewModel);
content.Close();
continue;
}
var res = await window.ShowMessageAsync("Save diagram",
$"Do you want to save diagram ? ({designer.ViewModel.DiagramTitle})",
MessageDialogStyle.AffirmativeAndNegativeAndSingleAuxiliary, new MetroDialogSettings()
{
AnimateShow = true,
AnimateHide = false,
AffirmativeButtonText = "Yes",
FirstAuxiliaryButtonText = "Yes to all",
NegativeButtonText = "No"
});
switch (res)
{
case MessageDialogResult.Affirmative:
facade.ViewModel = designer.ViewModel;
facade.SaveDiagram();
break;
case MessageDialogResult.FirstAuxiliary:
yesToAll = true;
forSave.Enqueue(designer.ViewModel);
break;
}
content.Close();
}
while (forSave.Count > 0)
{
var vm = forSave.Dequeue();
facade.ViewModel = vm;
facade.SaveDiagram();
}
}
/// <summary>
/// Synchronize diagram after activation of panel with DB structure
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public async void AnchorableDesignerActiveChangedHandler(object sender, System.EventArgs e)
{
var anchorable = sender as LayoutAnchorable;
DatabaseModelDesigner designer = anchorable?.Content as DatabaseModelDesigner;
if (designer == null)
{
return;
}
if (!anchorable.IsActive)
{
_lastFocued = anchorable;
return;
}
if (_lastFocued != null && _lastFocued.Equals(anchorable))
{
return;
}
Mouse.OverrideCursor = Cursors.Wait;
var facade = new DiagramFacade(designer.ViewModel);
await facade.RefreshDiagram(designer.ModelDesignerCanvas);
Mouse.OverrideCursor = null;
}
/// <summary>
/// Create new diagram panel in Main Window
/// </summary>
/// <param name="window">App window</param>
/// <param name="title">Title of diagram</param>
public static void CreateNewDiagram(MainWindow window, string title)
{
LayoutAnchorable anchorable = new LayoutAnchorable()
{
CanClose = true,
CanHide = false,
CanFloat = true,
CanAutoHide = false,
Title = title,
ContentId = $"{title}_ID"
};
DatabaseModelDesignerViewModel designerViewModel = new DatabaseModelDesignerViewModel()
{
DiagramTitle = title
};
window.MainWindowViewModel.DatabaseModelDesignerViewModels.Add(designerViewModel);
DatabaseModelDesigner designer = new DatabaseModelDesigner()
{
ViewModel = designerViewModel,
};
designer.TableCreated += window.CreateTableHandler;
anchorable.Content = designer;
anchorable.IsActiveChanged += window.AnchorableDesignerActiveChangedHandler;
window.MainDocumentPane.Children.Add(anchorable);
int indexOf = window.MainDocumentPane.Children.IndexOf(anchorable);
window.MainDocumentPane.SelectedContentIndex = indexOf;
Output.WriteLine(DiagramCreated);
}
/// <summary>
/// Try to get active diagram
/// </summary>
/// <param name="designer">Active digram, null if there is none</param>
/// <returns></returns>
private bool TryGetSelectedDesigner(out DatabaseModelDesigner designer)
{
var idx = MainDocumentPane.SelectedContentIndex;
designer = null;
if (idx < 0)
{
return(false);
}
var content = MainDocumentPane.Children[idx].Content;
designer = content as DatabaseModelDesigner;
return(designer != null);
}
public DiagramFacade(DatabaseModelDesigner designer)
{
ViewModel = designer.ViewModel;
}
