Please describe the problem:
in RTL mode the blue bar of GtkHScale widget which shows the range is working in
LTR direction. while the button of GtkHScale starts from right and goes to left,
the blue bar starts from left and goes to right.

Steps to reproduce:
1. run the (will attach) sample
2. work with HScale (increase and decrease it)
3. compare the dragable button and blue bar actions

Actual results:
the blue bar starts from left, while button (which you can click and drag)
starts from right.

Expected results:
syncronous button and blue bar. both starts from right and increase while going
to left.

Does this happen every time?
Yes

Other information:
I will attach a sample and screenshot of it. you can comment
"gtk.widget_set_default_direction(gtk.TEXT_DIR_RTL)" to see what happens
normally (in LTR mode).