/** layout.c **/
#include <gnome.h>

GtkWidget *makeLayout();
void addButtons(GtkWidget *layout);
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data);

int main(int argc,char *argv[])
{
    GtkWidget *window;
    GtkWidget *layout;

    gnome_init("layout","1.0",argc,argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size(GTK_WINDOW(window),
            200,200);
    gtk_signal_connect(GTK_OBJECT(window),
            "delete_event",
            GTK_SIGNAL_FUNC(eventDelete),
            NULL);
    gtk_signal_connect(GTK_OBJECT(window),
            "destroy",
            GTK_SIGNAL_FUNC(eventDestroy),
            NULL);

    layout = makeLayout();

    gtk_container_add(GTK_CONTAINER(window),layout);
    gtk_widget_show_all(window);
    gtk_main();
    exit(0);
}
GtkWidget *makeLayout()
{
    GtkWidget *layout;
    GtkWidget *vscroll;
    GtkWidget *hscroll;
    GtkWidget *table;
    GtkAdjustment *horizAdj;
    GtkAdjustment *vertAdj;

    vertAdj = (GtkAdjustment *)gtk_adjustment_new(
            0.0,
            0.0,
            1000.0,
            1.0,
            10.0,
            20.0);
    horizAdj = (GtkAdjustment *)gtk_adjustment_new(
            0.0,
            0.0,
            1000.0,
            1.0,
            10.0,
            20.0);

    layout = gtk_layout_new(horizAdj,vertAdj);
    gtk_layout_set_size(GTK_LAYOUT(layout),1000,1000);
    addButtons(layout);

    vscroll = gtk_vscrollbar_new(vertAdj);
    hscroll = gtk_hscrollbar_new(horizAdj);

    table = gtk_table_new(2,2,FALSE);

    gtk_table_attach_defaults(GTK_TABLE(table),layout,
            0,1,0,1);
    gtk_table_attach(GTK_TABLE(table),vscroll,
            1,2,0,1,
            GTK_FILL,GTK_FILL,0,0);
    gtk_table_attach(GTK_TABLE(table),hscroll,
            0,1,1,2,
            GTK_FILL,GTK_FILL,0,0);

    return(table);
}
void addButtons(GtkWidget *layout)
{
    gint i;
    gint j;
    GtkWidget *button;
    gchar label[20];

    for(i=100; i<1000; i += 100) {
        for(j=100; j<1000; j+= 50) {
            sprintf(label,"(%d,%d)",i,j);
            button = gtk_button_new_with_label(label);
            gtk_layout_put(GTK_LAYOUT(layout),button,i,j);
        }
    }
}
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    return(FALSE);
}
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    gtk_main_quit();
    return(0);
}