diff options
| author | Manolo Gouy <Manolo> | 2017-03-07 17:04:31 +0000 |
|---|---|---|
| committer | Manolo Gouy <Manolo> | 2017-03-07 17:04:31 +0000 |
| commit | fdee9dbf5d3d90e1258fb110fe7ce8d09e818d0d (patch) | |
| tree | 80ebff50262678f17cfa48c0e09f37f96d28bba2 /src/Fl_Clock.cxx | |
| parent | c37744cde9ff9a4e9e476a9a4acebfee87650f29 (diff) | |
Have all Fl_Clock objects in a single FLTK app tick approximately at the same time.
Before this change, clocks can tick at any point within a second, so 2 clocks
can appear to disagree on the time they give (by less than a second).
To see that, run the clock test program, icons one of the clocks,
and uniconize it just before the other clock will tick.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12188 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/Fl_Clock.cxx')
| -rw-r--r-- | src/Fl_Clock.cxx | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/Fl_Clock.cxx b/src/Fl_Clock.cxx index 46b326181..220479a9e 100644 --- a/src/Fl_Clock.cxx +++ b/src/Fl_Clock.cxx @@ -3,7 +3,7 @@ // // Clock widget for the Fast Light Tool Kit (FLTK). // -// Copyright 1998-2010 by Bill Spitzak and others. +// Copyright 1998-2017 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this @@ -19,6 +19,7 @@ #include <FL/Fl.H> #include <FL/Fl_Clock.H> #include <FL/Fl_Round_Clock.H> +#include <FL/Fl_System_Driver.H> #include <FL/fl_draw.H> #include <math.h> #include <time.h> @@ -183,8 +184,11 @@ Fl_Clock::Fl_Clock(uchar t, int X, int Y, int W, int H, const char *L) } static void tick(void *v) { - ((Fl_Clock*)v)->value((ulong) time(0)); - Fl::add_timeout(1.0, tick, v); + time_t sec; + int usec; + Fl::system_driver()->gettime(&sec, &usec); + ((Fl_Clock*)v)->value((ulong)sec); + Fl::add_timeout((1000000 - usec)/1000000., tick, v); // time till next second } int Fl_Clock::handle(int event) { |