private void _panel_MouseUp(object sender, MouseEventArgs e)
{
_translateDragging = TransformDragging.NONE;
_scaleDragging = DirectionalTransformDragging.NONE;
if (_translateFreeDragging)
{
_translateFreeDragging = false;
}
}
private void _panel_MouseDown(object sender, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
Engine.QueueForRenderDispatcher(() =>
{
if (e.Button == MouseButtons.Left)
{
Ray ray;
RaySceneQueryResult.Enumerator itr = GetRaySceneQuery(point.X, point.Y, out ray);
if (itr != null)
{
if (itr.MoveNext())
{
RaySceneQueryResultEntry entry = itr.Current;
SceneNode parentNode = entry.movable.ParentSceneNode;
TransformDragging dragging;
DirectionalTransformDragging directionalDragging;
if (IsTranslateClick(parentNode, out dragging))
{
_translateDragging = dragging;
IEnumerable <SceneNode> selected = GetSelectedNode();
if (selected != null)
{
SceneNode node = selected.FirstOrDefault();
if (node != null)
{
_translateDragDifference = ray.GetPoint(entry.distance) - node.Position;
}
}
return;
}
else if (IsScaleClick(parentNode, out directionalDragging))
{
_scaleDragging = directionalDragging;
IEnumerable <SceneNode> selected = GetSelectedNode();
if (selected != null)
{
SceneNode node = selected.FirstOrDefault();
if (node != null)
{
_scaleDragDifference = ray.GetPoint(entry.distance) - node.Position;
}
}
return;
}
else
{
_translateDragging = TransformDragging.NONE;
}
}
}
}
});
}
private bool IsTranslateClick(SceneNode checking, out TransformDragging translateDragging)
{
if (checking.Equals(_xArrowNodeA) || checking.Equals(_xArrowNodeB))
{
translateDragging = TransformDragging.X;
return(true);
}
else if (checking.Equals(_yArrowNodeA) || checking.Equals(_yArrowNodeB))
{
translateDragging = TransformDragging.Y;
return(true);
}
else if (checking.Equals(_zArrowNodeA) || checking.Equals(_zArrowNodeB))
{
translateDragging = TransformDragging.Z;
return(true);
}
translateDragging = TransformDragging.NONE;
return(false);
}
