[platform-dev] Inverting range of Vertical Slider

[Himanshu Balasamanta <himanshubb.eee18@xxxxxxxxxxx>]

In org.eclipse.swt.widgets.Slider class,

In the method Slider.setOrientation(boolean), the 
GTK.gtk_range_set_inverted(long handle, boolean invert) is only called 
if the Slider is Horizontal..

This leads to Vertical Sliders not being able to change their direction 
of value increase.

This issue is filed as a bug here 
https://bugs.eclipse.org/bugs/show_bug.cgi?id=511257

I was thinking of adding to org.eclipse.swt.SWT two more Style 
Constants, TOP_TO_BOTTOM and BOTTOM_TO_TOP, to allow the vertical slider 
access the GTK.gtk_range_set_inverted(long handle, boolean invert) method.

Please let me know whether or not it is a good option, and let me know 
similar bugs that exist in SWT.

Myself Himanshu Balasamanta, a sophomore in Electrical Engineering from 
India. If this is is OK, I would like to add it to my GSoC proposal.


Thanks in advance and regards,

Himanshu