private void VmOnRequestSelectionBoxUpdate(object sender, SelectionBoxUpdateArgs e)
{
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Position))
{
Canvas.SetLeft(this.selectionBox, e.X);
Canvas.SetTop(this.selectionBox, e.Y);
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Dimension))
{
selectionBox.Width = e.Width;
selectionBox.Height = e.Height;
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Visibility))
{
selectionBox.Visibility = e.Visibility;
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Mode))
{
if (e.IsCrossSelection && (null == selectionBox.StrokeDashArray))
{
selectionBox.StrokeDashArray = new DoubleCollection {
4
}
}
;
else if (!e.IsCrossSelection && (null != selectionBox.StrokeDashArray))
{
selectionBox.StrokeDashArray = null;
}
}
}
private void VmOnRequestSelectionBoxUpdate(object sender, SelectionBoxUpdateArgs e)
{
var originalLt = new Point(e.X, e.Y);
var translatedLt = workBench.TranslatePoint(originalLt, outerCanvas);
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Position))
{
Canvas.SetLeft(this.selectionBox, translatedLt.X);
Canvas.SetTop(this.selectionBox, translatedLt.Y);
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Dimension))
{
var originalRb = new Point(e.X + e.Width, e.Y + e.Height);
var translatedRb = workBench.TranslatePoint(originalRb, outerCanvas);
selectionBox.Width = translatedRb.X - translatedLt.X;
selectionBox.Height = translatedRb.Y - translatedLt.Y;
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Visibility))
{
selectionBox.Visibility = e.Visibility;
}
if (e.UpdatedProps.HasFlag(SelectionBoxUpdateArgs.UpdateFlags.Mode))
{
if (e.IsCrossSelection && (null == selectionBox.StrokeDashArray))
{
selectionBox.StrokeDashArray = new DoubleCollection {
4
}
}
;
else if (!e.IsCrossSelection && (null != selectionBox.StrokeDashArray))
{
selectionBox.StrokeDashArray = null;
}
}
}
