use Fl_Group::handle() to pass events to scrollbars

It turns out that Fl_Group::handle() is where some of the magic
lives that makes pushed() and FL_DRAG all work properly so that
you can drag the scrollbar without keeping the cursor within
its confines.

1 files changed, 4 insertions, 10 deletions

diff --git a/dw/fltkviewport.cc b/dw/fltkviewport.cc
index 88f1cac0..7572f0a6 100644
--- a/dw/fltkviewport.cc
+++ b/dw/fltkviewport.cc
@@ -206,16 +206,10 @@ int FltkViewport::handle (int event)
 {
    _MSG("FltkViewport::handle %d\n", event);
 
-   if (Fl::event_inside(hscrollbar) &&
-       !(Fl::event_state() & (FL_SHIFT | FL_CTRL | FL_ALT)) &&
-       hscrollbar->handle (event)) {
-      return 1;
-   }
-
-   if (Fl::event_inside(vscrollbar) &&
-       vscrollbar->handle (event)) {
-      return 1;
-   }
+   if (Fl::event_inside(vscrollbar) ||
+       (Fl::event_inside(hscrollbar) &&
+        !(Fl::event_state() & (FL_SHIFT | FL_CTRL | FL_ALT))))
+      return Fl_Group::handle(event);
 
    switch(event) {
    case FL_KEYBOARD: