private void MouseDown(MouseEventArgs e, EventHandleStatus status)
{
Point viewPoint = _modelEditor.ToViewCoord(e.Location);
if (e.Button == MouseButtons.Left)
{
IInternalSelection sel = _modelEditor.BindingEnvironment as IInternalSelection;
//是否点中了锚点
_currentElement = sel.GetActionElementAt(viewPoint, out _currentAnchorIndex);
if (_currentElement != null && _currentAnchorIndex != -1)
{
_startPoint = viewPoint;
_prePoint = _startPoint;
_oprType = enumOprType.Anchor;
status.Handled = true;
}
else//点中了除锚点外的其它区域
{
_currentElement = sel.Select(viewPoint);
if (_currentElement != null)
{
_startPoint = viewPoint;
_prePoint = _startPoint;
_oprType = enumOprType.Move;
status.Handled = true;
}
_modelEditor.Render();
}
}
}
private void MouseUp(MouseEventArgs e, EventHandleStatus status)
{
_prePoint = Point.Empty;
_startPoint = Point.Empty;
_currentElement = null;
_currentAnchorIndex = -1;
_oprType = enumOprType.None;
}