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/* util.c
* Utility routines
*
* $Id: util.c,v 1.9 1998/12/29 04:05:37 gerald Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <gtk/gtk.h>
#include <stdarg.h>
#include <strings.h>
#include <stdio.h>
#ifdef NEED_SNPRINTF_H
# ifdef HAVE_STDARG_H
# include <stdarg.h>
# else
# include <varargs.h>
# endif
# include "snprintf.h"
#endif
#include "packet.h"
#include "util.h"
#include "image/icon-excl.xpm"
#include "image/icon-ethereal.xpm"
const gchar *bm_key = "button mask";
/* Simple dialog function - Displays a dialog box with the supplied message
* text.
*
* Args:
* type : One of ESD_TYPE_*.
* btn_mask : The address of a gint. The value passed in determines if
* the 'Cancel' button is displayed. The button pressed by the
* user is passed back.
* msg_format : Sprintf-style format of the text displayed in the dialog.
* ... : Argument list for msg_format
*
*/
#define ESD_MAX_MSG_LEN 1024
void
simple_dialog(gint type, gint *btn_mask, gchar *msg_format, ...) {
GtkWidget *win, *main_vb, *top_hb, *type_pm, *msg_label,
*bbox, *ok_btn, *cancel_btn;
GdkPixmap *pixmap;
GdkBitmap *mask;
GtkStyle *style;
GdkColormap *cmap;
va_list ap;
gchar message[ESD_MAX_MSG_LEN];
gchar **icon;
/* Main window */
win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_container_border_width(GTK_CONTAINER(win), 7);
switch (type) {
case ESD_TYPE_WARN :
gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Warning");
icon = icon_excl_xpm;
break;
case ESD_TYPE_CRIT :
gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Critical");
icon = icon_excl_xpm;
break;
case ESD_TYPE_INFO :
default :
icon = icon_ethereal_xpm;
gtk_window_set_title(GTK_WINDOW(win), "Ethereal: Information");
break;
}
gtk_object_set_data(GTK_OBJECT(win), bm_key, btn_mask);
/* Container for our rows */
main_vb = gtk_vbox_new(FALSE, 5);
gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
gtk_container_add(GTK_CONTAINER(win), main_vb);
gtk_widget_show(main_vb);
/* Top row: Icon and message text */
top_hb = gtk_hbox_new(FALSE, 10);
gtk_container_add(GTK_CONTAINER(main_vb), top_hb);
gtk_widget_show(top_hb);
style = gtk_widget_get_style(win);
cmap = gdk_colormap_get_system();
pixmap = gdk_pixmap_colormap_create_from_xpm_d(NULL, cmap, &mask,
&style->bg[GTK_STATE_NORMAL], icon);
type_pm = gtk_pixmap_new(pixmap, mask);
gtk_misc_set_alignment (GTK_MISC (type_pm), 0.5, 0.0);
gtk_container_add(GTK_CONTAINER(top_hb), type_pm);
gtk_widget_show(type_pm);
/* Load our vararg list into the message string */
va_start(ap, msg_format);
vsnprintf(message, ESD_MAX_MSG_LEN, msg_format, ap);
msg_label = gtk_label_new(message);
gtk_label_set_justify(GTK_LABEL(msg_label), GTK_JUSTIFY_FILL);
gtk_container_add(GTK_CONTAINER(top_hb), msg_label);
gtk_widget_show(msg_label);
/* Button row */
bbox = gtk_hbutton_box_new();
gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END);
gtk_container_add(GTK_CONTAINER(main_vb), bbox);
gtk_widget_show(bbox);
ok_btn = gtk_button_new_with_label ("OK");
gtk_signal_connect_object(GTK_OBJECT(ok_btn), "clicked",
GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT (win));
gtk_container_add(GTK_CONTAINER(bbox), ok_btn);
GTK_WIDGET_SET_FLAGS(ok_btn, GTK_CAN_DEFAULT);
gtk_widget_grab_default(ok_btn);
gtk_widget_show(ok_btn);
if (btn_mask && *btn_mask == ESD_BTN_CANCEL) {
cancel_btn = gtk_button_new_with_label("Cancel");
gtk_signal_connect(GTK_OBJECT(cancel_btn), "clicked",
GTK_SIGNAL_FUNC(simple_dialog_cancel_cb), (gpointer) win);
gtk_container_add(GTK_CONTAINER(bbox), cancel_btn);
GTK_WIDGET_SET_FLAGS(cancel_btn, GTK_CAN_DEFAULT);
gtk_widget_show(cancel_btn);
}
if (btn_mask)
*btn_mask = ESD_BTN_OK;
gtk_widget_show(win);
}
void
simple_dialog_cancel_cb(GtkWidget *w, gpointer win) {
gint *btn_mask = (gint *) gtk_object_get_data(win, bm_key);
if (btn_mask)
*btn_mask = ESD_BTN_CANCEL;
gtk_widget_destroy(GTK_WIDGET(win));
}
/* Generate, into "buf", a string showing the bits of a bitfield.
Return a pointer to the character after that string. */
static char *
decode_bitfield_value(char *buf, guint32 val, guint32 mask, int width)
{
int i;
guint32 bit;
char *p;
i = 0;
p = buf;
bit = 1 << (width - 1);
for (;;) {
if (mask & bit) {
/* This bit is part of the field. Show its value. */
if (val & bit)
*p++ = '1';
else
*p++ = '0';
} else {
/* This bit is not part of the field. */
*p++ = '.';
}
bit >>= 1;
i++;
if (i >= width)
break;
if (i % 4 == 0)
*p++ = ' ';
}
strcpy(p, " = ");
p += 3;
return p;
}
/* Generate a string describing a Boolean bitfield (a one-bit field that
says something is either true of false). */
const char *
decode_boolean_bitfield(guint32 val, guint32 mask, int width,
const char *truedesc, const char *falsedesc)
{
static char buf[1025];
char *p;
p = decode_bitfield_value(buf, val, mask, width);
if (val & mask)
strcpy(p, truedesc);
else
strcpy(p, falsedesc);
return buf;
}
/* Generate a string describing an enumerated bitfield (an N-bit field
with various specific values having particular names). */
const char *
decode_enumerated_bitfield(guint32 val, guint32 mask, int width,
const value_string *tab, const char *fmt)
{
static char buf[1025];
char *p;
p = decode_bitfield_value(buf, val, mask, width);
sprintf(p, fmt, val_to_str(val & mask, tab, "Unknown"));
return buf;
}
/* Generate a string describing a numeric bitfield (an N-bit field whose
value is just a number). */
const char *
decode_numeric_bitfield(guint32 val, guint32 mask, int width,
const char *fmt)
{
static char buf[1025];
char *p;
p = decode_bitfield_value(buf, val, mask, width);
sprintf(p, fmt, val & mask);
return buf;
}
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