private void Venue_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (e.OldValue is LayoutModel value && HasChanged)
{
HasChanged = false;
Save(value);
}
ParentGrid.Children.Clear();
ParentGrid.RowDefinitions.Clear();
ParentGrid.ColumnDefinitions.Clear();
if (e.NewValue is LayoutModel layout)
{
var areas = layout.Areas.Where(x => x.Status != ModelInfo.Deleted).ToList();
if (areas.Count == 0)
{
return;
}
// create rows
var rowsCout = areas.Max(x => x.CoordY);
for (int i = 0; i < rowsCout; i++)
{
ParentGrid.RowDefinitions.Add(new RowDefinition());
}
// create columns
var columnCount = areas.Max(x => x.CoordX);
for (int i = 0; i < columnCount; i++)
{
ParentGrid.ColumnDefinitions.Add(new ColumnDefinition());
}
// create layouts
foreach (var area in areas)
{
var element = new AreaGrid();
ParentGrid.Children.Add(element);
SetColumn(element, area.CoordX - 1);
SetRow(element, area.CoordY - 1);
if (area.Seats.Count == 0)
{
continue;
}
// create seat columns
var seatColumnsCount = area.Seats.Max(x => x.Number);
for (int i = 0; i < seatColumnsCount; i++)
{
element.ParentGrid.ColumnDefinitions.Add(new ColumnDefinition());
}
// create seat rows
var seatRowsCount = area.Seats.Max(x => x.Row);
for (int i = 0; i < seatRowsCount; i++)
{
element.ParentGrid.RowDefinitions.Add(new RowDefinition());
}
// create seats
foreach (var seat in area.Seats)
{
var elementSeat = new SeatLabel();
element.ParentGrid.Children.Add(elementSeat);
SetColumn(elementSeat, seat.Number - 1);
SetRow(elementSeat, seat.Row - 1);
}
}
}
}
private void Border_Drop(object sender, DragEventArgs e)
{
// checking that target cell is not a LayerGrid
if (e.Source is TemplateSeat)
{
return;
}
if (e.Data.GetData(typeof(TemplateArea)) is TemplateArea || e.Data.GetData(typeof(AreaGrid)) is AreaGrid)
{
return;
}
var mousePosition = new { e.GetPosition(ParentBorder).X, e.GetPosition(ParentBorder).Y };
var columnPositionPercent = (int)(mousePosition.X * 100 / ParentBorder.ActualWidth);
var rowPositionPercent = (int)(mousePosition.Y * 100 / ParentBorder.ActualHeight);
if (!ParentGrid.Children.Cast <SeatLabel>().Any())
{
ParentGrid.ColumnDefinitions.Add(new ColumnDefinition());
ParentGrid.RowDefinitions.Add(new RowDefinition());
}
else
if (columnPositionPercent < rowPositionPercent) // Row
{
if (!CheckPositionSeat(e.GetPosition(ParentBorder)))
{
ParentGrid.RowDefinitions.Add(new RowDefinition());
}
}
else
if (rowPositionPercent < columnPositionPercent) // Column
{
if (!CheckPositionSeat(e.GetPosition(ParentBorder)))
{
ParentGrid.ColumnDefinitions.Add(new ColumnDefinition());
}
}
HasChanged = true;
UIElement element = null;
if (e.Data.GetData(typeof(SeatLabel)) is SeatLabel seat)
{
element = seat;
}
else
if (e.Data.GetData(typeof(TemplateSeat)) is TemplateSeat)
{
element = new SeatLabel();
ParentGrid.Children.Add(element);
}
if (CheckPositionSeat(e.GetPosition(ParentBorder)))
{
SetColumn(element, GetTargetColumn(mousePosition.X));
SetRow(element, GetTargetRow(mousePosition.Y));
}
//clear empty row and column
if (ParentGrid.Children.Cast <SeatLabel>().All(x => GetRow(x) != ParentGrid.RowDefinitions.Count - 1))
{
ParentGrid.RowDefinitions.RemoveAt(ParentGrid.RowDefinitions.Count - 1);
}
if (ParentGrid.Children.Cast <SeatLabel>().All(x => GetColumn(x) != ParentGrid.ColumnDefinitions.Count - 1))
{
ParentGrid.ColumnDefinitions.RemoveAt(ParentGrid.ColumnDefinitions.Count - 1);
}
}