private void handleMouseDown(MouseEventArgs param)
{
_dxElement.Focusable = true;
Keyboard.Focus(_dxElement);
if (param == null)
{
throw new InvalidOperationException(GetFunctionName());
}
bool isScreenDirty = false;
if ((Keyboard.Modifiers & ModifierKeys.Alt) > 0)
{
_camera.OnMouseDown(param, ref isScreenDirty);
}
else
{
SelectedTool.OnMouseDown(param, ref isScreenDirty);
}
//_tool.OnMouseDown(param);
if (isScreenDirty)
{
// Render
_dxElement.Render();
}
}
