Fixed adding an idle handler during a draw() call (STR #1950)

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6473 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 4 insertions, 0 deletions

diff --git a/src/Fl.cxx b/src/Fl.cxx
index 57d8cf778..0b62f4c4e 100644
--- a/src/Fl.cxx
+++ b/src/Fl.cxx
@@ -381,6 +381,8 @@ double Fl::wait(double time_to_wait) {
     if (idle) time_to_wait = 0.0;
   }
   flush();
+  if (idle && !in_idle) // 'idle' may have been set within flush()
+    time_to_wait = 0.0;
   return fl_wait(time_to_wait);
 
 #else
@@ -427,6 +429,8 @@ double Fl::wait(double time_to_wait) {
   } else {
     // do flush first so that user sees the display:
     flush();
+    if (idle && !in_idle) // 'idle' may have been set within flush()
+      time_to_wait = 0.0;
     return fl_wait(time_to_wait);
   }
 #endif