/// <summary>
/// Получниение Id выделенного элемента
/// </summary>
/// <returns></returns>
public static string GetIdElementSource()
{
ElementControl el = Elements.FirstOrDefault(c => c.IsSelected);
InOutControl inControl = InOutControls.FirstOrDefault(c => c.IsSelected);
return(el != null?el.Element.Id.ToString() : (inControl != null ? inControl.Element.Id.ToString() : null));
}
/// <summary>
/// Получить координату конечной точки связи в зависимости от колличества входов и их занятости
/// </summary>
/// <param name="element"></param>
/// <param name="numConnection"></param>
/// <returns></returns>
static Point GetFinishPoint(ElementClass element, int numConnection)
{
ElementControl control = new ElementControl();
var dCon = control.Height / element.InCount / 2;
Point point = new Point(element.Location.X + Math.Truncate(control.Width / 2),
element.Location.Y + dCon);
if (numConnection > 0)
{
if (numConnection > 1)
{
point.Y += dCon * numConnection;
}
}
else
{
for (int i = 1; i < element.InElements.Count; i++)
{
point.Y += dCon * 2;
}
}
return(point);
}
private void AddElementMenuItem_OnClick(object sender, RoutedEventArgs e)
{
ElementClass element = new ElementClass {
Location = _mousePoint
};
ElementControl el = GraphClass.CreateElementControl(element, ConntectionMenuItem_Click);
el.PreviewMouseMove += El_PreviewMouseMove;
SaverClass.Elements.Add(element);
EditorCanvas.Children.Add(el);
new ElementProperty(el).ShowDialog();
}
private void El_PreviewMouseMove(object sender, MouseEventArgs e)
{
ElementControl element = sender as ElementControl;
if (!(sender is ElementControl) || !element.IsSelected || !element.IsDrag)
{
return;
}
element.SetLocation(e.GetPosition(EditorCanvas));
foreach (Connection connection in GraphClass.Connections
.Where(c => c.Start.Id == element.Element.Id || c.Finish.Id == element.Element.Id).ToList())
{
connection.CalculatePoints();
}
}
private void EditorCanvas_OnPreviewKeyUp(object sender, KeyEventArgs e)
{
if (e.Key == Key.Delete)
{
ElementControl el = GraphClass.Elements.FirstOrDefault(c => c.IsSelected);
if (el == null)
{
return;
}
if (MessageBox.Show("Вы действительно хотите удалить элемент?", "", MessageBoxButton.YesNo) !=
MessageBoxResult.Yes)
{
return;
}
RemoveElement(el.Element.Id);
}
}
/// <summary>
/// Создание нового элемента
/// </summary>
/// <returns></returns>
public static ElementControl CreateElementControl(ElementClass element, RoutedEventHandler menuHandler)
{
ElementControl el = new ElementControl();
Panel.SetZIndex(el, ElementZIndex++);
el.Element = element;
el.UpdateView();
el.SetLocation(element.Location);
MenuItem connectionMenuItem = new MenuItem()
{
Header = "_Соединить элемент"
};
connectionMenuItem.Click += menuHandler;
el.MainGrid.ContextMenu?.Items.Insert(2, connectionMenuItem);
Elements.Add(el);
return(el);
}
/// <summary>
/// Загрузка схемы
/// </summary>
void OpenSchema()
{
OpenFileDialog ofd = new OpenFileDialog()
{
Title = "Выберите файл", Filter = "json files (*.json)|*.json"
};
if (ofd.ShowDialog() == true)
{
EditorCanvas.Children.Clear();
GraphClass.Connections.Clear();
SaverClass.LoadData(ofd.FileName);
GraphClass.ElementZIndex = 10000;
GraphClass.ConnectionZIndex = 0;
foreach (ElementClass element in SaverClass.Elements)
{
switch (element.Type)
{
case 10:
{
InOutControl inControl = GraphClass.CreateInControl(element);
inControl.MainGrid.ContextMenu = new ContextMenu();
inControl.MainGrid.ContextMenu.Items.Add(new MenuItem()
{
Header = "_Соединить вход"
});
(inControl.MainGrid.ContextMenu.Items[0] as MenuItem).Click += ConntectionMenuItem_Click;
EditorCanvas.Children.Add(inControl);
continue;
}
case 11:
{
EditorCanvas.Children.Add(GraphClass.CreateOutControl(element));
foreach (Guid id in element.InElements)
{
Connection connection = new Connection()
{
Start = SaverClass.Elements.First(c => c.Id == id),
Finish = element
};
connection.CalculatePoints();
Panel.SetZIndex(connection.Line, GraphClass.ConnectionZIndex++);
GraphClass.Connections.Add(connection);
EditorCanvas.Children.Add(connection.Line);
}
continue;
}
}
ElementControl el = GraphClass.CreateElementControl(element, ConntectionMenuItem_Click);
el.PreviewMouseMove += El_PreviewMouseMove;
EditorCanvas.Children.Add(el);
foreach (Guid id in element.InElements)
{
Connection connection = new Connection()
{
Start = SaverClass.Elements.First(c => c.Id == id),
Finish = element
};
connection.CalculatePoints();
Panel.SetZIndex(connection.Line, GraphClass.ConnectionZIndex++);
GraphClass.Connections.Add(connection);
EditorCanvas.Children.Add(connection.Line);
}
}
}
}
