public static void ClearSelection(this Windows.UI.Input.Inking.InkManager inkManager)
{
foreach (var stroke in inkManager.GetStrokes())
{
stroke.Selected = false;
}
}
public static void SelectAll(this Windows.UI.Input.Inking.InkManager inkManager)
{
foreach (var stroke in inkManager.GetStrokes())
{
stroke.Selected = true;
}
}
public static bool AnySelected(this Windows.UI.Input.Inking.InkManager inkManager)
{
foreach (var stroke in inkManager.GetStrokes())
{
if (stroke.Selected)
{
return(true);
}
}
return(false);
}
void InkingArea_PointerMoved(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
{
var pointerPoint = e.GetCurrentPoint(InkingArea);
if (pointerId == (int)pointerPoint.PointerId)
{
switch (inkManager.Mode)
{
case Windows.UI.Input.Inking.InkManipulationMode.Erasing:
// Check if something has been erased.
// In erase mode InkManager::ProcessPointerUpdate returns an invalidate
// rectangle: if it is not degenerate something has been erased
// In erase mode we don't bother processing intermediate points
var invalidateRect = (Windows.Foundation.Rect)inkManager.ProcessPointerUpdate(e.GetCurrentPoint(InkingArea));
if (invalidateRect.Height != 0 && invalidateRect.Width != 0)
{
// We don't know what has been erased so we clear the render
// and add back all the ink saved in the ink manager
renderer.Clear();
renderer.AddInk(inkManager.GetStrokes());
}
break;
case Windows.UI.Input.Inking.InkManipulationMode.Inking:
case Windows.UI.Input.Inking.InkManipulationMode.Selecting:
// Process intermediate points
var intermediatePoints = e.GetIntermediatePoints(InkingArea);
for (int i = intermediatePoints.Count - 1; i >= 0; i--)
{
inkManager.ProcessPointerUpdate(intermediatePoints[i]);
}
// Live rendering
renderer.UpdateLiveRender(pointerPoint);
break;
}
}
}
