This reverts commit ec1b18c58a.
This was not well enough reviewed, and it seems that at least some
consumers of the old API (e.g. WebPositive) need more than the new one provides.
Change-Id: Ie7ad1fc70dab889922424298661504b00f66d31d
Fixes#9137
Move scroll bar drawing into HaikuControlLook
Added B_SCROLLABLE flag to BControlLook
Update FakeScrollBar in Appearance to also draw using HaikuControlLook.
Focus works on scroll bars again, used by FakeScrollBar... and probably
nowhere else.
Added private _ScrollingEnabled() convenience method to BScrollBar and
use it in a few places making.
Create ScrollBarPrivate.h header to share a couple of scroll bar related
enums with HaikuControlLook that come from BeOS Scroll Bar prefs.
Stuff arrow_direction enum into BScrollBar::Private as it has been
succeeded by a similar enum already present in BControlLook and is only
around now for BScrollBar::Private::DrawScrollBarButton.
Change-Id: Idc31ee41de091ba45ded2f0315a004af00143803
All of its prior functionality has been moved into HaikuControlLook.
This paves the way for customizeable control looks, which I intend to implement
in the future as part of decorators.
This is being pushed now because libbe ABI was already broken due to the
Notifications changes, so this is riding that so we only have to do a mass
rebuild once.
