/// <summary>
/// Invoked when an unhandled MouseLeftButtonDown routed event is raised on this element.
/// </summary>
/// <param name="e">The MouseButtonEventArgs that contains the event data.</param>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
Keyboard.Focus(this);
// if (!System.Deployment.Application.ApplicationDeployment.IsNetworkDeployed)
{
if (!((Keyboard.Modifiers & ModifierKeys.Control) > 0) && (!this.IsDragging))
{
// Memorizations must occur before CaptureAndHideMouse() call
// GetCursorPos(out _dragOriginScreenPoint);
// Mouse.GetPosition(
// _dragOriginScreenPoint = _viewport.PointToScreen(point);
_viewport = Helper3D.GetViewport3D(this);
_dragOriginPoint = e.GetPosition(this);
// CaptureAndHideMouse Moves the mouse
CaptureAndHideMouse();
base.SetValue(IsDraggingPropertyKey, true);
base.SetValue(IsSelectedPropertyKey, true);
}
}
base.OnMouseLeftButtonDown(e);
}
/// <summary>
/// Captures and hides the mouse.
/// </summary>
protected void CaptureAndHideMouse()
{
base.CaptureMouse();
Mouse.OverrideCursor = Cursors.None;
// code specific to 3D
Viewport3D viewport = Helper3D.GetViewport3D(this);
// GeneralTransform3DTo2D transform = this.TransformToAncestor(ancestor);
// Point pScreen = transform.Transform(<3d point from the mesh in myVisual3D space>);
Point p = new Point(
_dragOriginPoint.X,
_dragOriginPoint.Y - (DragHeight * Rate));
Point pScreen = viewport.PointToScreen(p);
SetCursorPos(
Convert.ToInt32(pScreen.X),
Convert.ToInt32(pScreen.Y));
}
