clist preformance

[Ralf Forsberg <rfg home se>]

Hello,

The following program give g_list_nth() quite a
workout , it uses 99.95% cpu time for me and
finishes in just under one minute (pentium233).

It is faster if I set the text directly when adding
the rows, but I don't want to do that.


-----------------------
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>

#define NR_ROWS 20000

int main(int argc, char *argv[])
{
    char *column_titles[]=
    {
	"1","2","3"
    };

    int err;

    int i,j;
    
    GtkWidget *window;
    GtkWidget *scrolled_win;
    GtkWidget *clist;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size(GTK_WINDOW(window),600,500);

    gtk_signal_connect (GTK_OBJECT (window), "destroy",
			GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
  
    scrolled_win = gtk_scrolled_window_new (NULL, NULL);
    gtk_widget_show(scrolled_win);
    clist = gtk_clist_new_with_titles (3, column_titles);
    gtk_widget_show(clist);
    gtk_clist_set_column_width (GTK_CLIST (clist), 0, 80);
    gtk_clist_set_column_width (GTK_CLIST (clist), 1, 80);
    gtk_clist_set_column_width (GTK_CLIST (clist), 2, 80);
    gtk_container_add (GTK_CONTAINER (scrolled_win), clist);

    gtk_container_add(GTK_CONTAINER(window),scrolled_win);
    
    gtk_widget_show(clist);
    gtk_widget_show(scrolled_win);
    gtk_widget_show_now(window);
	

    gtk_clist_freeze(GTK_CLIST(clist));
    
    for(i=0;i<NR_ROWS;i++)
    {
	gtk_clist_append(GTK_CLIST(clist),column_titles);
    }
    
    for(i=0;i<NR_ROWS;i++)
    {
	for(j=0;j<3;j++)
	{
	    gtk_clist_set_text(GTK_CLIST(clist),
				      i,j,"test");
	}
    }
    
    gtk_clist_thaw(GTK_CLIST(clist));
    
    gtk_main();

    return 0;
}
-----------------------


 / Ralf