private void Select(DiagramItem itemBlock)
{
Select(new List <DiagramItem>()
{
itemBlock
});
}
private void Unselect(DiagramItem itemBlock)
{
if (IsUpdatingSelectedItems)
{
return;
}
BeginUpdateSelectedItems();
SelectedItems.Remove(ItemContainerGenerator.ItemFromContainer(itemBlock));
EndUpdateSelectedItems();
}
private void ToggleSelect(DiagramItem diagramItem)
{
if (diagramItem.IsSelected)
{
Unselect(diagramItem);
}
else
{
Select(diagramItem);
}
}
private void UpdateItemPosition(DiagramItem block)
{
if (!IsMeasureValid)
{
Measure(Size.Empty);
}
if (block is DiagramItemBlock)
{
Canvas.SetLeft(block, block.X - block.DesiredSize.Width / 2.0);
Canvas.SetTop(block, block.Y - block.DesiredSize.Height / 2.0);
}
else
{
Canvas.SetLeft(block, block.X);
Canvas.SetTop(block, block.Y);
}
}