public Rect SelectStrokesByPoints(PointCollection points)
{
ClearStrokesSelection();
var rect = _strokeContainer.SelectWithPolyLine(points);
SelectStrokesEvent?.Invoke(this, EventArgs.Empty);
return(rect);
}
private void OnInkToolbarAction(object sender, RoutedEventArgs e)
{
string option = (sender as Button).Name;
switch (option)
{
case "Copy":
case "Cut":
this.copyContainer = new InkStrokeContainer();
if (this.renderedStrokes.Any())
{
foreach (InkStroke stroke in this.renderedStrokes.Where(s => s.Selected))
{
this.copyContainer.AddStroke(stroke.Clone());
}
this.copyContainer.SelectWithPolyLine(this.lasso.Points);
this.copyContainer.CopySelectedToClipboard();
if (option == "Cut")
{
this.OnEraserClicked(sender, null);
}
this.canvas.Invalidate();
}
break;
case "Paste":
//Unselects all previously selected areas
foreach (InkStrokeContainer container in this.strokes)
{
container.SelectWithLine(new Point(0, 0), new Point(0, 0));
}
//Fake paste to determine pasted content size
InkStrokeContainer pasteFakeContainer = new InkStrokeContainer();
Rect pastedContentArea = pasteFakeContainer.PasteFromClipboard(this.toolbarPosition);
//Paste it ensuring it fits client size
InkStrokeContainer pasteContainer = new InkStrokeContainer();
Point pastePoint = this.EnsureFit(this.toolbarPosition, pastedContentArea);
Rect pastedBoundingRect = pasteContainer.PasteFromClipboard(pastePoint);
this.DrawBoundingRect(pastedBoundingRect);
//Selects pasted ink
List <Point> pastedLasso = new List <Point>();
pastedLasso.Add(new Point(pastedBoundingRect.X, pastedBoundingRect.Y));
pastedLasso.Add(new Point(pastedBoundingRect.X + pastedBoundingRect.Width, pastedBoundingRect.Y));
pastedLasso.Add(new Point(pastedBoundingRect.X + pastedBoundingRect.Width, pastedBoundingRect.Y + pastedBoundingRect.Height));
pastedLasso.Add(new Point(pastedBoundingRect.X, pastedBoundingRect.Y + pastedBoundingRect.Height));
pastedLasso.Add(new Point(pastedBoundingRect.X, pastedBoundingRect.Y));
pasteContainer.SelectWithPolyLine(pastedLasso);
this.strokes.Add(pasteContainer);
this.canvas.Invalidate();
//Se lasso matching pasted content
this.lasso = new Polyline()
{
Stroke = new SolidColorBrush(Colors.Blue),
StrokeThickness = 1,
StrokeDashArray = new DoubleCollection()
{
5, 2
},
};
foreach (Point lassoPoint in pastedLasso)
{
this.lasso.Points.Add(lassoPoint);
}
//We move into lasso mode to let user move pasted selection
//this.OnLassoChecked(this,null);
this.hasPasted = true;
break;
case "Delete":
this.OnEraserClicked(sender, null);
break;
}
this.InkSelectionToolbar.Visibility = Visibility.Collapsed;
}
public Rect SelectStrokesByPoints(PointCollection points)
{
ClearStrokesSelection();
return(strokeContainer.SelectWithPolyLine(points));
}