private void Manip_Resizing(object sender, ShiftEventArgs e)
{
//Console.WriteLine("{0},{1},{2},{3}", e.LeftShift, e.TopShift, e.WidthShift, e.HeightShift);
Point pos = new Point(_initPos.X + e.LeftShift, _initPos.Y + e.TopShift);
Point size = new Point(_initSize.Width + e.WidthShift, _initSize.Height + e.HeightShift);
Point endPos = new Point(pos.X + size.X - 5, pos.Y + size.Y - 5); //5个像素偏移，以避开边界。
LayoutDesignModel.RowColumn start = CalcRowColumn(pos);
LayoutDesignModel.RowColumn end = CalcRowColumn(endPos);
GridBlockManipulator gbm = e.Source as GridBlockManipulator;
gbm.ViewModel.Row = start.Row;
gbm.ViewModel.Column = start.Column;
gbm.ViewModel.RowSpan = end.Row - start.Row + 1;
gbm.ViewModel.ColumnSpan = end.Column - start.Column + 1;
}
private void Manip_Reposition(object sender, ShiftEventArgs e)
{
Point pos = new Point(_initPos.X + e.LeftShift, _initPos.Y + e.TopShift);
LayoutDesignModel.RowColumn start = CalcRowColumn(pos);
GridBlockManipulator gbm = e.Source as GridBlockManipulator;
if (start.Row + gbm.ViewModel.RowSpan <= ViewModel.Split)
{
gbm.ViewModel.Row = start.Row;
}
if (start.Column + gbm.ViewModel.ColumnSpan <= ViewModel.Split)
{
gbm.ViewModel.Column = start.Column;
}
}