private Point GetDragLocation(long dragPoint)
{
int x = (int)dragPoint;
int y = (int)(dragPoint >> 32);
var screenPt = new PixelPoint(x, y);
return(_target.PointToClient(screenPt));
}
public void SceneInvalidated(IInputRoot root, Rect rect)
{
var clientPoint = root.PointToClient(Position);
if (rect.Contains(clientPoint))
{
if (_pointer.Captured == null)
{
SetPointerOver(this, 0 /* TODO: proper timestamp */, root, clientPoint, InputModifiers.None);
}
else
{
SetPointerOver(this, 0 /* TODO: proper timestamp */, root, _pointer.Captured, InputModifiers.None);
}
}
}
private void ProcessMouseEvents(RawPointerEventArgs e)
{
if (!_initialInputModifiers.HasValue)
{
_initialInputModifiers = e.InputModifiers & MOUSE_INPUTMODIFIERS;
}
void CheckDraggingAccepted(RawInputModifiers changedMouseButton)
{
if (_initialInputModifiers.Value.HasFlag(changedMouseButton))
{
var result = RaiseEventAndUpdateCursor(RawDragEventType.Drop, e.Root, e.Position, e.InputModifiers);
UpdateCursor(null, DragDropEffects.None);
_result.OnNext(result);
}
else
{
CancelDragging();
}
e.Handled = true;
}
switch (e.Type)
{
case RawPointerEventType.LeftButtonDown:
case RawPointerEventType.RightButtonDown:
case RawPointerEventType.MiddleButtonDown:
case RawPointerEventType.NonClientLeftButtonDown:
CancelDragging();
e.Handled = true;
return;
case RawPointerEventType.LeaveWindow:
RaiseEventAndUpdateCursor(RawDragEventType.DragLeave, e.Root, e.Position, e.InputModifiers); break;
case RawPointerEventType.LeftButtonUp:
CheckDraggingAccepted(RawInputModifiers.LeftMouseButton); break;
case RawPointerEventType.MiddleButtonUp:
CheckDraggingAccepted(RawInputModifiers.MiddleMouseButton); break;
case RawPointerEventType.RightButtonUp:
CheckDraggingAccepted(RawInputModifiers.RightMouseButton); break;
case RawPointerEventType.Move:
var mods = e.InputModifiers & MOUSE_INPUTMODIFIERS;
if (_initialInputModifiers.Value != mods)
{
CancelDragging();
e.Handled = true;
return;
}
if (e.Root != _lastRoot)
{
if (_lastRoot != null)
{
RaiseEventAndUpdateCursor(RawDragEventType.DragLeave, _lastRoot, _lastRoot.PointToClient(e.Root.PointToScreen(e.Position)), e.InputModifiers);
}
RaiseEventAndUpdateCursor(RawDragEventType.DragEnter, e.Root, e.Position, e.InputModifiers);
}
else
{
RaiseEventAndUpdateCursor(RawDragEventType.DragOver, e.Root, e.Position, e.InputModifiers);
}
break;
}
}
private Point GetDragLocation(UnmanagedMethods.POINT dragPoint)
{
var screenPt = new PixelPoint(dragPoint.X, dragPoint.Y);
return(_target.PointToClient(screenPt));
}
