http://ftp.ksu.edu.tw/FTP/FreeBSD/distfiles/xscreensaver-4.20.tar.gz

[xscreensaver] / hacks / glx / cubenetic.c

diff --git a/hacks/glx/cubenetic.c b/hacks/glx/cubenetic.c
index 84e2726490f1ccf03d3fe1cae51e87b085e61ef8..44f2b73f9b9e28f6726dee966840a9c1195d82c5 100644 (file)
--- a/hacks/glx/cubenetic.c
+++ b/hacks/glx/cubenetic.c
@@ -349,7 +349,7 @@ cube_handle_event (ModeInfo *mi, XEvent *event)
   cube_configuration *cc = &ccs[MI_SCREEN(mi)];
 
   if (event->xany.type == ButtonPress &&
-      event->xbutton.button & Button1)
+      event->xbutton.button == Button1)
     {
       cc->button_down_p = True;
       gltrackball_start (cc->trackball,
@@ -358,11 +358,19 @@ cube_handle_event (ModeInfo *mi, XEvent *event)
       return True;
     }
   else if (event->xany.type == ButtonRelease &&
-           event->xbutton.button & Button1)
+           event->xbutton.button == Button1)
     {
       cc->button_down_p = False;
       return True;
     }
+  else if (event->xany.type == ButtonPress &&
+           (event->xbutton.button == Button4 ||
+            event->xbutton.button == Button5))
+    {
+      gltrackball_mousewheel (cc->trackball, event->xbutton.button, 10,
+                              !!event->xbutton.state);
+      return True;
+    }
   else if (event->xany.type == MotionNotify &&
            cc->button_down_p)
     {