Hi,
The attached code will pop up a window with a progress bar in it.
The fill fraction goes from 0.0 to 1.0 gradually and is reset to 0.0
when it's bigger than 1.0. With GTK+ 2.12.10, the appearance of the
progress bar is constantly updated. However, with GTK+ 2.14.5, the
progress bar always remains empty. Is this change of updating behaviour
from 2.12.10 to 2.14.5 a bug or an intended feature? If it's a feature,
what extra functions do I have to call to make a progess bar update?
Best wishes,
-cph
--------------------------------- cut ---------------------------------
#include <gtk/gtk.h>
static void destroy( GtkWidget *widget,
gpointer timeout)
{
g_source_remove (GPOINTER_TO_UINT (timeout));
gtk_main_quit ();
}
static gboolean
update_pbar (GtkProgressBar *pbar)
{
gdouble frac = gtk_progress_bar_get_fraction (pbar) + 0.01;
if (frac > 1.0)
frac = 0.0;
g_print ("%f\n", frac);
gtk_progress_bar_set_fraction (pbar, frac);
return TRUE;
}
int main( int argc,
char *argv[] )
{
GtkWidget *window;
GtkWidget *pbar;
guint timeout_id;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (destroy), &timeout_id);
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
pbar = gtk_progress_bar_new ();
timeout_id = g_timeout_add (100, (GSourceFunc) update_pbar, pbar);
gtk_container_add (GTK_CONTAINER (window), pbar);
gtk_widget_show (pbar);
gtk_widget_show (window);
gtk_main ();
return 0;
}
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