2000-07-03 08:36:52 +00:00
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/* progress_dlg.c
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* Routines for progress-bar (modal) dialog
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*
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2000-07-03 19:42:36 +00:00
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* $Id: progress_dlg.c,v 1.2 2000/07/03 19:42:36 guy Exp $
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2000-07-03 08:36:52 +00:00
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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 "gtkglobals.h"
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#include "ui_util.h"
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#define PROG_BAR_KEY "progress_bar"
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static void delete_cb(GtkWidget *w, GdkEvent *event, gpointer data);
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static void cancel_cb(GtkWidget *w, gpointer data);
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/*
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* Create and pop up the progress dialog; return a pointer to it, as
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* a "void *", so that our caller doesn't have to know the GUI
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* implementation.
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*
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* The first argument is the title to give the dialog box; the second
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* argument is a pointer to a Boolean variable that will be set to
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* TRUE if the user hits the "Cancel" button.
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*
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* XXX - should the button say "Cancel", or "Stop"?
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*
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* XXX - provide a way to specify the progress in units, with the total
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* number of units specified as an argument when the progress dialog
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* is created; updates would be given in units, with the progress dialog
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* code computing the percentage, and the progress bar would have a
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* label "0" on the left and <total number of units> on the right, with
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* a label in the middle giving the number of units we've processed
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* so far. This could be used when filtering packets, for example; we
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* wouldn't always use it, as we have no idea how many packets are to
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* be read.
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*/
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void *
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create_progress_dlg(gchar *title, gboolean *stop_flag)
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{
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2000-07-03 19:42:36 +00:00
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GtkWidget *dlg_w, *main_vb, *title_lb, *prog_bar, *cancel_al,
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*cancel_bt;
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2000-07-03 08:36:52 +00:00
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dlg_w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title(GTK_WINDOW(dlg_w), title);
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/*
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* Container for dialog widgets.
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*/
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main_vb = gtk_vbox_new(FALSE, 1);
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gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
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gtk_container_add(GTK_CONTAINER(dlg_w), main_vb);
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gtk_widget_show(main_vb);
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/*
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* Put the title here as a label indicating what we're
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2000-07-03 19:42:36 +00:00
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* doing; set its alignment and padding so it's aligned on the
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* left.
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2000-07-03 08:36:52 +00:00
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*/
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title_lb = gtk_label_new(title);
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2000-07-03 19:42:36 +00:00
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gtk_box_pack_start(GTK_BOX(main_vb), title_lb, FALSE, TRUE, 3);
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gtk_misc_set_alignment(GTK_MISC(title_lb), 0.0, 0.0);
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gtk_misc_set_padding(GTK_MISC(title_lb), 0.0, 0.0);
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2000-07-03 08:36:52 +00:00
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gtk_widget_show(title_lb);
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/*
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* The progress bar.
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*/
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prog_bar = gtk_progress_bar_new();
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gtk_progress_set_activity_mode(GTK_PROGRESS(prog_bar), FALSE);
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gtk_box_pack_start(GTK_BOX(main_vb), prog_bar, FALSE, TRUE, 3);
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gtk_widget_show(prog_bar);
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/*
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* Attach a pointer to the progress bar widget to the top-level
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* widget.
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*/
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gtk_object_set_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY, prog_bar);
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/*
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* Allow user to either click a "Cancel" button, or the close button
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* on the window, to stop an operation in progress.
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*
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* Put the button in an alignment so it doesn't get any wider than
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* it needs to to say "Cancel".
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*/
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cancel_al = gtk_alignment_new(0.5, 0.0, 0.0, 0.0);
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cancel_bt = gtk_button_new_with_label("Cancel");
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gtk_container_add(GTK_CONTAINER(cancel_al), cancel_bt);
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gtk_signal_connect(GTK_OBJECT(cancel_bt), "clicked",
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GTK_SIGNAL_FUNC(cancel_cb), (gpointer) stop_flag);
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gtk_signal_connect(GTK_OBJECT(dlg_w), "delete_event",
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GTK_SIGNAL_FUNC(delete_cb), (gpointer) stop_flag);
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gtk_box_pack_end(GTK_BOX(main_vb), cancel_al, FALSE, FALSE, 3);
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GTK_WIDGET_SET_FLAGS(cancel_bt, GTK_CAN_DEFAULT);
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gtk_widget_grab_default(cancel_bt);
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GTK_WIDGET_SET_FLAGS(cancel_bt, GTK_CAN_DEFAULT);
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gtk_widget_grab_default(cancel_bt);
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gtk_widget_show(cancel_bt);
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gtk_widget_show(cancel_al);
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gtk_widget_show(dlg_w);
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gtk_grab_add(dlg_w); /* make it modal */
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return dlg_w; /* return as opaque pointer */
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}
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/*
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* Called when the dialog box is to be deleted.
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* We just treat this the same way we treat clicking the "Cancel" button.
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*/
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static void
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delete_cb(GtkWidget *w, GdkEvent *event, gpointer data)
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{
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cancel_cb(NULL, data);
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}
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/*
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* Called when the "Cancel" button is clicked.
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* Set the Boolean to TRUE.
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*/
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static void
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cancel_cb(GtkWidget *w, gpointer data)
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{
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gboolean *stop_flag = (gboolean *) data;
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GtkWidget *toplevel;
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*stop_flag = TRUE;
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if (w != NULL) {
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/*
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* The cancel button was clicked, so we have to destroy
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* the dialog box ourselves.
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*/
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toplevel = gtk_widget_get_toplevel(w);
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destroy_progress_dlg(toplevel);
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}
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}
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/*
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* Set the percentage value of the progress bar.
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*/
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void
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update_progress_dlg(void *dlg, gfloat percentage)
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{
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GtkWidget *dlg_w = dlg;
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GtkWidget *prog_bar;
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prog_bar = gtk_object_get_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY);
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gtk_progress_bar_update(GTK_PROGRESS_BAR(prog_bar), percentage);
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/*
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* Flush out the update and process any input events.
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*/
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while (gtk_events_pending())
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gtk_main_iteration();
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}
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/*
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* Destroy the progress bar.
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*/
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void
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destroy_progress_dlg(void *dlg)
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{
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GtkWidget *dlg_w = dlg;
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gtk_grab_remove(GTK_WIDGET(dlg_w));
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gtk_widget_destroy(GTK_WIDGET(dlg_w));
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}
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