private void InkCanvas_DoubleTapped(object sender, DoubleTappedRoutedEventArgs e)
{
var position = e.GetPosition(_inkCanvas);
if (selectedNode != null && RectHelper.Contains(selectedNode.BoundingRect, position))
{
ExpandSelection();
lastDoubleTapTime = DateTime.Now;
}
}
private IInkAnalysisNode FindHitNodeByKind(Point position, InkAnalysisNodeKind kind)
{
var nodes = InkAnalyzer.AnalysisRoot.FindNodes(kind);
foreach (var node in nodes)
{
if (RectHelper.Contains(node.BoundingRect, position))
{
return(node);
}
}
return(null);
}
private InkAnalysisParagraph FindHitParagraph(Point pt)
{
var paragraphs = inkAnalyzer.AnalysisRoot.FindNodes(InkAnalysisNodeKind.Paragraph);
foreach (var paragraph in paragraphs)
{
// To support ink written with angle, RotatedBoundingRect should be used in hit testing.
if (RectHelper.Contains(paragraph.BoundingRect, pt))
{
return((InkAnalysisParagraph)paragraph);
}
}
return(null);
}
private void InkCanvas_Tapped(object sender, TappedRoutedEventArgs e)
{
var position = e.GetPosition(_inkCanvas);
if (selectedNode != null && RectHelper.Contains(selectedNode.BoundingRect, position))
{
if (DateTime.Now.Subtract(lastDoubleTapTime).TotalMilliseconds < TripleTapTime)
{
ExpandSelection();
}
}
else
{
selectedNode = _analyzer.FindHitNode(position);
ShowOrHideSelection(selectedNode);
}
}
public bool ContainsPosition(Point position)
{
return(!selectionStrokesRect.IsEmpty && RectHelper.Contains(selectionStrokesRect, position));
}