Timeline: Warn about buggy FLTK version.

scripts/config-funcs

@@ -191,7 +191,7 @@ begin ()
 
 warn ()
 {
-    echo " ${BOLD}${YELLOW}* ${SGR0}$*"
+    echo " ${BOLD}${YELLOW}* ${SGR0}${BOLD}$*"
 }
 
 info ()

timeline/configure

@@ -31,6 +31,24 @@ require_package liblo 0.23 liblo
 require_package sigcpp 2.0.0 sigc++-2.0
 suggest_package XPM 2.0.0 xpm
 
+if ! test_version 1.1.10 $FLTK_VERSION 
+then
+    warn "*** PERFORMANCE WARNING ***"
+    warn ""
+    warn "Your FLTK version is $FLTK_VERSION."
+    warn ""
+    warn "FLTK version 1.3.0 introduced a bug which slows down the"
+    warn "drawing of Non-DAW's timeline by a factor of thousands."
+    warn ""
+    warn "Install FLTK 1.1.10 and try again."
+    warn ""
+    warn "Alternatively, you can rerun configure and answer 'yes' to"
+    warn "the question 'Use widget for timeline'. It will be fast, but"
+    warn "you won't be able to see the playhead."
+    warn ""
+    warn "Please send any and all complaints to the FLTK developers!"
+fi
+
 test_version `version_of liblo` 0.26 || warn "Version $(version_of liblo) of liblo is slow to create servers. Consider upgrading to 0.26 or later"
 
 end

timeline/src/Timeline.C

@@ -395,6 +395,12 @@ Timeline::ntracks ( void ) const
 
 Timeline::Timeline ( int X, int Y, int W, int H, const char* L ) : BASE( X, Y, W, H, L )
 {
+
+    if ( ! can_do_overlay() )
+    {
+        WARNING( "Display lacks hardware overlay visual. Playhead and selection rectangle will flicker." );
+    }
+
     Loggable::snapshot_callback( &Timeline::snapshot, this );
 
     osc_thread = 0;

timeline/src/main.C

@@ -153,6 +153,9 @@ main ( int argc, char **argv )
                             (char**)icon_16x16, &p, &mask, NULL);
 #endif
 
+    Fl::visual(FL_RGB8);
+    
+
     Thread::init();
 
     Thread thread( "UI" );