public void SnapCorner(double w, double h, VA.Arrange.SnapCornerPosition corner)
{
if (!this.Client.HasSelectedShapes())
{
return;
}
var shapes_2d = Client.Selection.EnumShapes2D().ToList();
var shapeids = shapes_2d.Select(s => s.ID).ToList();
var application = this.Client.VisioApplication;
using (var undoscope = new VA.Application.UndoScope(application, "SnapCorner"))
{
var active_page = application.ActivePage;
ArrangeHelper.SnapCorner(active_page, shapeids, new VA.Drawing.Size(w, h), corner);
}
}
private static VA.Shapes.XFormCells _SnapCorner(VA.Arrange.SnapCornerPosition corner, VA.Drawing.Point new_lower_left, VA.Shapes.XFormCells input_xfrm)
{
var new_pin_position = GetPinPositionForCorner(input_xfrm, new_lower_left, corner);
var output_xfrm = new VA.Shapes.XFormCells();
if (new_pin_position.X != input_xfrm.PinX.Result)
{
output_xfrm.PinX = new_pin_position.X;
}
if (new_pin_position.Y != input_xfrm.PinY.Result)
{
output_xfrm.PinY = new_pin_position.Y;
}
return(output_xfrm);
}
private static VA.Drawing.Point GetPinPositionForCorner(VA.Shapes.XFormCells input_xfrm, VA.Drawing.Point new_lower_left, VA.Arrange.SnapCornerPosition corner)
{
var size = new VA.Drawing.Size(input_xfrm.Width.Result, input_xfrm.Height.Result);
var locpin = new VA.Drawing.Point(input_xfrm.LocPinX.Result, input_xfrm.LocPinY.Result);
switch (corner)
{
case VA.Arrange.SnapCornerPosition.LowerLeft:
{
return(new_lower_left.Add(locpin.X, locpin.Y));
}
case VA.Arrange.SnapCornerPosition.UpperRight:
{
return(new_lower_left.Subtract(size.Width, size.Height).Add(locpin.X, locpin.Y));
}
case VA.Arrange.SnapCornerPosition.LowerRight:
{
return(new_lower_left.Subtract(size.Width, 0).Add(locpin.X, locpin.Y));
}
case VA.Arrange.SnapCornerPosition.UpperLeft:
{
return(new_lower_left.Subtract(0, size.Height).Add(locpin.X, locpin.Y));
}
default:
{
throw new System.ArgumentOutOfRangeException("corner", "Unsupported corner");
}
}
}
public static void SnapCorner(IVisio.Page page, IList <int> shapeids, VA.Drawing.Size snapsize, VA.Arrange.SnapCornerPosition corner)
{
// First caculate the new transforms
var snap_grid = new VA.Drawing.SnappingGrid(snapsize);
var input_xfrms = ArrangeHelper.GetXForm(page, shapeids);
var output_xfrms = new List <VA.Shapes.XFormCells>(input_xfrms.Count);
foreach (var input_xfrm in input_xfrms)
{
var old_lower_left = ArrangeHelper.GetRectangle(input_xfrm).LowerLeft;
var new_lower_left = snap_grid.Snap(old_lower_left);
var output_xfrm = _SnapCorner(corner, new_lower_left, input_xfrm);
output_xfrms.Add(output_xfrm);
}
// Now apply them
update_xfrms(page, shapeids, output_xfrms);
}