forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
set the "activate" signal for a widget to call a routine to activate the "OK" button for a dialog box; set the "key_press_event" signal for a top-level dialog window to call a routine to activate the "Cancel" button for a dialog box if the key being pressed is the <Esc> key; to make it easier to drive dialog boxes entirely from the keyboard. Make the "Find Frame" and "Go To Frame" dialog boxes use those utilities. svn path=/trunk/; revision=1903
176 lines
5.4 KiB
C
176 lines
5.4 KiB
C
/* goto_dlg.c
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* Routines for "go to frame" window
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*
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* $Id: goto_dlg.c,v 1.6 2000/05/02 08:04:31 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gtk/gtk.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifndef __G_LIB_H__
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#include <glib.h>
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#endif
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#include "proto.h"
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#include "dfilter.h"
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#include "globals.h"
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#include "goto_dlg.h"
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#include "prefs_dlg.h"
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#include "simple_dialog.h"
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#include "dlg_utils.h"
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/* Capture callback data keys */
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#define E_GOTO_FNUMBER_KEY "goto_fnumber_te"
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static void
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goto_frame_ok_cb(GtkWidget *ok_bt, gpointer parent_w);
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static void
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goto_frame_close_cb(GtkWidget *close_bt, gpointer parent_w);
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void
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goto_frame_cb(GtkWidget *w, gpointer d)
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{
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GtkWidget *goto_frame_w, *main_vb, *fnumber_hb, *fnumber_lb, *fnumber_te,
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*bbox, *ok_bt, *cancel_bt;
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goto_frame_w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title(GTK_WINDOW(goto_frame_w), "Ethereal: Go To Frame");
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/* Container for each row of widgets */
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main_vb = gtk_vbox_new(FALSE, 3);
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gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
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gtk_container_add(GTK_CONTAINER(goto_frame_w), main_vb);
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gtk_widget_show(main_vb);
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/* Frame number row */
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fnumber_hb = gtk_hbox_new(FALSE, 3);
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gtk_container_add(GTK_CONTAINER(main_vb), fnumber_hb);
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gtk_widget_show(fnumber_hb);
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fnumber_lb = gtk_label_new("Frame number:");
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gtk_box_pack_start(GTK_BOX(fnumber_hb), fnumber_lb, FALSE, FALSE, 0);
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gtk_widget_show(fnumber_lb);
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fnumber_te = gtk_entry_new();
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gtk_box_pack_start(GTK_BOX(fnumber_hb), fnumber_te, FALSE, FALSE, 0);
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gtk_widget_show(fnumber_te);
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/* Button row: OK and cancel buttons */
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bbox = gtk_hbutton_box_new();
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gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END);
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gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5);
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gtk_container_add(GTK_CONTAINER(main_vb), bbox);
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gtk_widget_show(bbox);
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ok_bt = gtk_button_new_with_label ("OK");
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gtk_signal_connect(GTK_OBJECT(ok_bt), "clicked",
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GTK_SIGNAL_FUNC(goto_frame_ok_cb), GTK_OBJECT(goto_frame_w));
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GTK_WIDGET_SET_FLAGS(ok_bt, GTK_CAN_DEFAULT);
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gtk_box_pack_start (GTK_BOX (bbox), ok_bt, TRUE, TRUE, 0);
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gtk_widget_grab_default(ok_bt);
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gtk_widget_show(ok_bt);
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cancel_bt = gtk_button_new_with_label ("Cancel");
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gtk_signal_connect(GTK_OBJECT(cancel_bt), "clicked",
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GTK_SIGNAL_FUNC(goto_frame_close_cb), GTK_OBJECT(goto_frame_w));
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GTK_WIDGET_SET_FLAGS(cancel_bt, GTK_CAN_DEFAULT);
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gtk_box_pack_start (GTK_BOX (bbox), cancel_bt, TRUE, TRUE, 0);
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gtk_widget_show(cancel_bt);
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/* Attach pointers to needed widgets to the capture prefs window/object */
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gtk_object_set_data(GTK_OBJECT(goto_frame_w), E_GOTO_FNUMBER_KEY, fnumber_te);
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/* Catch the "activate" signal on the frame number text entry, so that
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if the user types Return there, we act as if the "OK" button
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had been selected, as happens if Return is typed if some widget
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that *doesn't* handle the Return key has the input focus. */
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dlg_set_activate(fnumber_te, ok_bt);
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/* Catch the "key_press_event" signal in the window, so that we can catch
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the ESC key being pressed and act as if the "Cancel" button had
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been selected. */
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dlg_set_cancel(goto_frame_w, cancel_bt);
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/* Give the initial focus to the "Frame number" entry box. */
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gtk_widget_grab_focus(fnumber_te);
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gtk_widget_show(goto_frame_w);
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}
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static void
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goto_frame_ok_cb(GtkWidget *ok_bt, gpointer parent_w)
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{
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GtkWidget *fnumber_te;
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gchar *fnumber_text;
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guint fnumber;
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char *p;
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fnumber_te = (GtkWidget *) gtk_object_get_data(GTK_OBJECT(parent_w), E_GOTO_FNUMBER_KEY);
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fnumber_text = gtk_entry_get_text(GTK_ENTRY(fnumber_te));
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fnumber = strtoul(fnumber_text, &p, 10);
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if (p == fnumber_text || *p != '\0') {
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/* Illegal number.
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XXX - what about negative numbers (which "strtoul()" allows)?
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Can we hack up signal handlers for the widget to make it
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reject attempts to type in characters other than digits? */
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simple_dialog(ESD_TYPE_WARN, NULL,
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"The frame number you entered isn't a valid number.");
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return;
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}
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switch (goto_frame(&cf, fnumber)) {
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case NO_SUCH_FRAME:
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simple_dialog(ESD_TYPE_WARN, NULL, "There is no frame with that frame number.");
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return;
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case FRAME_NOT_DISPLAYED:
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/* XXX - add it to the display filter? */
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simple_dialog(ESD_TYPE_WARN, NULL, "The frame with that frame number is not currently being displayed.");
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return;
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case FOUND_FRAME:
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gtk_widget_destroy(GTK_WIDGET(parent_w));
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break;
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}
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}
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static void
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goto_frame_close_cb(GtkWidget *close_bt, gpointer parent_w)
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{
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gtk_grab_remove(GTK_WIDGET(parent_w));
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gtk_widget_destroy(GTK_WIDGET(parent_w));
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}
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