I'd like to make a few additions to Fl_Spinner; comments?
Fl_Spinner is a group with an Fl_Input and a few buttons; looks like this:
_________________
| | ^ |
| input area |---|
|_____________|_v_|
In my application, I need to change the color of the input area
based on if the value is negative or positive, but it seems I can't
because the input area is a private member of the Fl_Group.
To do this, I could see a few approaches to modifying the widget:
1) Add a color() method to override the invisible Fl_Group::color(),
and have it call the input's color() instead.
2) Make the input and buttons 'protected' instead of 'private'
so that one can derive classes from it to access the members
directly.
3) Do what other widgets do (like Fl_Scroll) and expose the
internal widgets with methods, eg.
myspinner->input()
myspinner->up_button()
myspinner->down_button()
..so that an app can access these directly without deriving a class.
My thinking is all three should be done, though perhaps #3 is "too much"?.
#2 breaks ABI, so that would have to be #ifdef'ed.
Comments?
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