This class is the button bar in the Ltabgroup. It contains a button for each Ltabpage. It also contains two Ltabgroup_buttonbar_scrollbtn objects. One on the left to scroll left and another on the right to scroll the content of the button bar to the right. The Ltabgroup_buttonbar_scrollbtn objects are only visible when they needed. It is based on the Lcontainer class.

Creates several instance variables.

Opens the scroller buttons if needed.

Make sure the scroller buttons are closed.

Redirect most button bar events to the owner (Ltabgroup object).

Don‘t forward this to the owner.

Returns true because the button bar does not pull attributes from the :object attribute of any style.

Returns false because the button bar does not inherit color from parent objects.

Returns :sys_button_fg, since we contain buttons, let our color match the default button color.

Returns :sys_button_bg, since we contain buttons, let our color match the default button color.

If the tabpage has an explicit color (not an inherited color), we want to use it.

If the tabpage has an explicit color (not an inherited color), we want to use it.

If the tabpage has an explicit font (not an inherited color), we want to use it.

Shows the left scroller only it is needed (hscroll_position > 0)

Repositions the right scroller button if needed and creates or hides the either of scroller buttons as needed.

Scrolls the buttons in the button bar to the left or right to match new_value. This is automatically called when either of the scroller buttons are clicked on. Also turns on and off the scroller buttons (Ltabgroup_buttonbar_scrollbtn objects) as needed.

Returns the number of pixels to scroll left or right. The default is clientW / 2 so scrolling is 50% of the width.

This is called when the buttons in the button bar need to be scrolled right or left. The scrollber buttons call this to when they are clicked.

• levent[:value] contains the number of pixels to scroll.
• levent[:direction] can contain :left or :right to specify which direction you want to scroll.

Returns the x pixel position of the client area of the object relative to the object upper left corner.

Compensate for being in the outer frame of the tabgroup rather than the inner frame.

Compensate for being in the outer frame of the tabgroup rather than the inner frame.