This is the button used on either side of the scrollbar. It is bases on the Lbutton_pixmap class. The Lscrollbar creates two of these for each scrollbar.

Returns the width of the pixmap which is 16 pixels.

Returns the height of the pixmap which is 16 pixels.

Uses the owners foreground color (:fg attribute).

Creates several instance variables for this object. Also creates the timer used for repeating the on_mouse_ldn event when the left mouse button is pressed and held. Determines which pixmap to use based on the :otype.

These buttons always has a fixed size and location.

Calls on_mouse_ldn otherwise clicking multiple times can appear to skip on_mouse_ldn events.

Tells Lscrollbar to move the scroller button. This also starts a button timer so the on_mouse_ldn will continuously repeat while the button is pressed.

Cancels the button timer.

Stops or delays the button timer. The scrollbars scroller button will stop moving while the mouse is no longer over the button.

Restarts the button timer.

Makes an adjustment because the clientW of our parent takes the scrollbar button into consideration but we are not in the parents client area.

Makes an adjustment because the clientH of our parent takes the scrollbar button into consideration but we are not in the parents client area.