From http://www.jwz.org/xscreensaver/xscreensaver-5.30.tar.gz

[xscreensaver] / hacks / glx / antmaze.c

diff --git a/hacks/glx/antmaze.c b/hacks/glx/antmaze.c
index 0f18e15fe8dc9f49843dccb276e2fb05012f5c98..6258fb9e6603663a7e5ae54ac9f9be1622530589 100644 (file)
--- a/hacks/glx/antmaze.c
+++ b/hacks/glx/antmaze.c
@@ -1304,55 +1304,30 @@ ENTRYPOINT Bool antmaze_handle_event (ModeInfo *mi, XEvent *event)
 {
   antmazestruct *mp = &antmaze[MI_SCREEN(mi)];
 
-  switch(event->xany.type) {
-  case ButtonPress:
+  if (gltrackball_event_handler (event, mp->trackball,
+                                 MI_WIDTH (mi), MI_HEIGHT (mi),
+                                 &mp->button_down_p))
+    return True;
 
-    switch(event->xbutton.button) {
-
-    case Button1:
-      mp->button_down_p = True;
-      gltrackball_start(mp->trackball, 
-                       event->xbutton.x, event->xbutton.y,
-                       MI_WIDTH (mi), MI_HEIGHT (mi));
-      break;
+  if (event->xany.type == ButtonPress)
+    {
+      switch(event->xbutton.button) {
 
-    case Button3:
-      mp->focus = (mp->focus + 1) % ANTCOUNT;
-      break;
+      case Button3:
+        mp->focus = (mp->focus + 1) % ANTCOUNT;
+        return True;
       
-    case Button4:
-      mp->mag = max(mp->mag-1, 1);
-      break;
-
-    case Button5:
-      mp->mag = min(mp->mag+1, MAX_MAGNIFICATION);
-      break;
-    }
+      case Button4:
+        mp->mag = max(mp->mag-1, 1);
+        return True;
 
-    break;
-    
-  case ButtonRelease:
-
-    switch(event->xbutton.button) {
-    case Button1:
-      mp->button_down_p = False;
-      break;
+      case Button5:
+        mp->mag = min(mp->mag+1, MAX_MAGNIFICATION);
+        return True;
+      }
     }
 
-    break;
-
-  case MotionNotify:
-    if(mp->button_down_p)
-      gltrackball_track(mp->trackball,
-                       event->xmotion.x, event->xmotion.y,
-                       MI_WIDTH (mi), MI_HEIGHT (mi));
-    break;
-    
-  default:
-    return False;
-  }
-
-  return True;
+  return False;
 }
 
 ENTRYPOINT void init_antmaze(ModeInfo * mi) 
@@ -1433,7 +1408,7 @@ ENTRYPOINT void init_antmaze(ModeInfo * mi)
   mp->mag = 4.0;
 
   mp->rot = make_rotator (rot_speed, rot_speed, rot_speed, 1, 0, True);
-  mp->trackball = gltrackball_init ();
+  mp->trackball = gltrackball_init (False);
   
   if ((mp->glx_context = init_GL(mi)) != NULL) {
     reshape_antmaze(mi, MI_WIDTH(mi), MI_HEIGHT(mi));