triggers an action [...] ) to trigger a centric [...] ) which the left edge is moved
) to trigger a centric [...] ) which the left edge is moved [...] ) which the top edge is moved
) to trigger an image change [...] ) which the left edge is moved [...] ) which the top edge is moved
react to a rising edge at the x [...] button triggers
) to trigger a centric [...] ) which the left edge is moved [...] ) which the top edge is moved
) to trigger a centric [...] ) which the left edge is moved [...] ) which the top edge is moved