public void EvenSpaces(FigureArrange arrange)
{
OnLayerStartChanging();
_selection.EvenSpaces(arrange);
_selection.PushTransformToSelectedFigures();
OnLayerChanged();
//строим маркеры
UpdateMarkers();
}
/// <summary>
/// Выравнивание по величине промежутков между фигурами
/// </summary>
/// <param name="selection">Текущее выделение фигур</param>
/// <param name="arrange">Направление выравнивания</param>
public static void EvenSpaces(this Selection selection, FigureArrange arrange)
{
var exists = selection.Count > 2;
if (!exists)
{
return;
}
var width = 0f;
var heigth = 0f;
foreach (var bounds in selection.Select(figure =>
figure.GetTransformedPath().Path.GetBounds()))
{
width += bounds.Width;
heigth += bounds.Height;
}
var selectionBounds = selection.GetTransformedPath().Path.GetBounds();
var figures = new List <Figure>();
switch (arrange)
{
case FigureArrange.Horizontal:
var sW = (selectionBounds.Width - width) / (selection.Count - 1);
figures.AddRange(selection.OrderBy(item => item.GetTransformedPath().Path.GetBounds().Left));
var w = selectionBounds.Left + figures.First().GetTransformedPath().Path.GetBounds().Width + sW;
for (var i = 1; i < figures.Count - 1; i++)
{
var half = figures[i].GetTransformedPath().Path.GetBounds().Width / 2;
w += half;
var el = figures[i].Transform.Matrix.Elements;
el[4] = w;
figures[i].Transform.Matrix = new Matrix(el[0], el[1], el[2], el[3], el[4], el[5]);
w += half + sW;
}
break;
case FigureArrange.Vertical:
var sH = (selectionBounds.Height - heigth) / (selection.Count - 1);
figures.AddRange(selection.OrderBy(item => item.GetTransformedPath().Path.GetBounds().Top));
var h = selectionBounds.Top + figures.First().GetTransformedPath().Path.GetBounds().Height + sH;
for (var i = 1; i < figures.Count - 1; i++)
{
var half = figures[i].GetTransformedPath().Path.GetBounds().Height / 2;
h += half;
var el = figures[i].Transform.Matrix.Elements;
el[5] = h;
figures[i].Transform.Matrix = new Matrix(el[0], el[1], el[2], el[3], el[4], el[5]);
h += half + sH;
}
break;
}
}
