![Guy Harris](/assets/img/avatar_default.png)
as, on a large capture, it could take a significant amount of time. Let the user stop the computation and, if they do, don't pop up the statistics dialog box. Create a new header file declaring the routines to create, update, and destroy progress dialog boxes; those routines' APIs don't depend on GTK+, but others declared in "ui_util.h" do, and we don't want to oblige a source file to depend on GTK+ headers unless it uses a GTK+ API or an API that depends on GTK+. svn path=/trunk/; revision=3179
200 lines
5.9 KiB
C
200 lines
5.9 KiB
C
/* progress_dlg.c
|
|
* Routines for progress-bar (modal) dialog
|
|
*
|
|
* $Id: progress_dlg.c,v 1.9 2001/03/24 02:07:22 guy 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 "gtkglobals.h"
|
|
#include "dlg_utils.h"
|
|
#include "progress_dlg.h"
|
|
|
|
#define PROG_BAR_KEY "progress_bar"
|
|
|
|
static gint delete_event_cb(GtkWidget *w, GdkEvent *event, gpointer data);
|
|
static void stop_cb(GtkWidget *w, gpointer data);
|
|
|
|
/*
|
|
* Define the structure describing a progress dialog.
|
|
*/
|
|
struct progdlg {
|
|
GtkWidget *dlg_w; /* top-level window widget */
|
|
};
|
|
|
|
/*
|
|
* Create and pop up the progress dialog; allocate a "progdlg_t"
|
|
* and initialize it to contain all information the implementation
|
|
* needs in order to manipulate the dialog, and return a pointer to
|
|
* it.
|
|
*
|
|
* The first argument is the title to give the dialog box; the second
|
|
* argument is the string to put in the "stop this operation" button;
|
|
* the third argument is a pointer to a Boolean variable that will be
|
|
* set to TRUE if the user hits that button.
|
|
*
|
|
* XXX - provide a way to specify the progress in units, with the total
|
|
* number of units specified as an argument when the progress dialog
|
|
* is created; updates would be given in units, with the progress dialog
|
|
* code computing the percentage, and the progress bar would have a
|
|
* label "0" on the left and <total number of units> on the right, with
|
|
* a label in the middle giving the number of units we've processed
|
|
* so far. This could be used when filtering packets, for example; we
|
|
* wouldn't always use it, as we have no idea how many packets are to
|
|
* be read.
|
|
*/
|
|
progdlg_t *
|
|
create_progress_dlg(const gchar *title, const gchar *stop_title,
|
|
gboolean *stop_flag)
|
|
{
|
|
progdlg_t *dlg;
|
|
GtkWidget *dlg_w, *main_vb, *title_lb, *prog_bar, *bbox, *stop_bt;
|
|
|
|
dlg = g_malloc(sizeof (progdlg_t));
|
|
|
|
dlg_w = dlg_window_new(title);
|
|
gtk_window_set_modal(GTK_WINDOW(dlg_w), TRUE);
|
|
|
|
/*
|
|
* Container for dialog widgets.
|
|
*/
|
|
main_vb = gtk_vbox_new(FALSE, 1);
|
|
gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
|
|
gtk_container_add(GTK_CONTAINER(dlg_w), main_vb);
|
|
|
|
/*
|
|
* Put the title here as a label indicating what we're
|
|
* doing; set its alignment and padding so it's aligned on the
|
|
* left.
|
|
*/
|
|
title_lb = gtk_label_new(title);
|
|
gtk_box_pack_start(GTK_BOX(main_vb), title_lb, FALSE, TRUE, 3);
|
|
gtk_misc_set_alignment(GTK_MISC(title_lb), 0.0, 0.0);
|
|
gtk_misc_set_padding(GTK_MISC(title_lb), 0.0, 0.0);
|
|
|
|
/*
|
|
* The progress bar.
|
|
*/
|
|
prog_bar = gtk_progress_bar_new();
|
|
gtk_progress_set_activity_mode(GTK_PROGRESS(prog_bar), FALSE);
|
|
gtk_box_pack_start(GTK_BOX(main_vb), prog_bar, FALSE, TRUE, 3);
|
|
|
|
/*
|
|
* Attach a pointer to the progress bar widget to the top-level
|
|
* widget.
|
|
*/
|
|
gtk_object_set_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY, prog_bar);
|
|
|
|
/*
|
|
* Button row: cancel button.
|
|
* (We put it in an HButtonBox, even though there's only one
|
|
* of them, so that it doesn't expand to the width of the window.)
|
|
*/
|
|
bbox = gtk_hbutton_box_new();
|
|
gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5);
|
|
gtk_container_add(GTK_CONTAINER(main_vb), bbox);
|
|
|
|
/*
|
|
* Allow user to either click a "stop this operation" button, or
|
|
* the close button on the window, to stop an operation in
|
|
* progress.
|
|
*/
|
|
stop_bt = gtk_button_new_with_label(stop_title);
|
|
gtk_box_pack_start(GTK_BOX (bbox), stop_bt, TRUE, TRUE, 0);
|
|
gtk_signal_connect(GTK_OBJECT(stop_bt), "clicked",
|
|
GTK_SIGNAL_FUNC(stop_cb), (gpointer) stop_flag);
|
|
gtk_signal_connect(GTK_OBJECT(dlg_w), "delete_event",
|
|
GTK_SIGNAL_FUNC(delete_event_cb), (gpointer) stop_flag);
|
|
GTK_WIDGET_SET_FLAGS(stop_bt, GTK_CAN_DEFAULT);
|
|
gtk_widget_grab_default(stop_bt);
|
|
GTK_WIDGET_SET_FLAGS(stop_bt, GTK_CAN_DEFAULT);
|
|
gtk_widget_grab_default(stop_bt);
|
|
|
|
gtk_widget_show_all(dlg_w);
|
|
|
|
dlg->dlg_w = dlg_w;
|
|
|
|
return dlg;
|
|
}
|
|
|
|
/*
|
|
* Called when the dialog box is to be deleted.
|
|
* Set the "stop" flag to TRUE, and return TRUE - we don't want the dialog
|
|
* box deleted now, our caller will do so when they see that the
|
|
* "stop" flag is TRUE and abort the operation.
|
|
*/
|
|
static gint
|
|
delete_event_cb(GtkWidget *w, GdkEvent *event, gpointer data)
|
|
{
|
|
gboolean *stop_flag = (gboolean *) data;
|
|
|
|
*stop_flag = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Called when the "stop this operation" button is clicked.
|
|
* Set the "stop" flag to TRUE; we don't have to destroy the dialog
|
|
* box, as our caller will do so when they see that the "stop" flag is
|
|
* true and abort the operation.
|
|
*/
|
|
static void
|
|
stop_cb(GtkWidget *w, gpointer data)
|
|
{
|
|
gboolean *stop_flag = (gboolean *) data;
|
|
|
|
*stop_flag = TRUE;
|
|
}
|
|
|
|
/*
|
|
* Set the percentage value of the progress bar.
|
|
*/
|
|
void
|
|
update_progress_dlg(progdlg_t *dlg, gfloat percentage)
|
|
{
|
|
GtkWidget *dlg_w = dlg->dlg_w;
|
|
GtkWidget *prog_bar;
|
|
|
|
prog_bar = gtk_object_get_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY);
|
|
gtk_progress_bar_update(GTK_PROGRESS_BAR(prog_bar), percentage);
|
|
|
|
/*
|
|
* Flush out the update and process any input events.
|
|
*/
|
|
while (gtk_events_pending())
|
|
gtk_main_iteration();
|
|
}
|
|
|
|
/*
|
|
* Destroy the progress dialog.
|
|
*/
|
|
void
|
|
destroy_progress_dlg(progdlg_t *dlg)
|
|
{
|
|
GtkWidget *dlg_w = dlg->dlg_w;
|
|
|
|
gtk_widget_destroy(GTK_WIDGET(dlg_w));
|
|
g_free(dlg);
|
|
}
|