2 * Routines for progress-bar (modal) dialog
4 * $Id: progress_dlg.c,v 1.9 2001/03/24 02:07:22 guy Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@zing.org>
8 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #include "gtkglobals.h"
31 #include "dlg_utils.h"
32 #include "progress_dlg.h"
34 #define PROG_BAR_KEY "progress_bar"
36 static gint delete_event_cb(GtkWidget *w, GdkEvent *event, gpointer data);
37 static void stop_cb(GtkWidget *w, gpointer data);
40 * Define the structure describing a progress dialog.
43 GtkWidget *dlg_w; /* top-level window widget */
47 * Create and pop up the progress dialog; allocate a "progdlg_t"
48 * and initialize it to contain all information the implementation
49 * needs in order to manipulate the dialog, and return a pointer to
52 * The first argument is the title to give the dialog box; the second
53 * argument is the string to put in the "stop this operation" button;
54 * the third argument is a pointer to a Boolean variable that will be
55 * set to TRUE if the user hits that button.
57 * XXX - provide a way to specify the progress in units, with the total
58 * number of units specified as an argument when the progress dialog
59 * is created; updates would be given in units, with the progress dialog
60 * code computing the percentage, and the progress bar would have a
61 * label "0" on the left and <total number of units> on the right, with
62 * a label in the middle giving the number of units we've processed
63 * so far. This could be used when filtering packets, for example; we
64 * wouldn't always use it, as we have no idea how many packets are to
68 create_progress_dlg(const gchar *title, const gchar *stop_title,
72 GtkWidget *dlg_w, *main_vb, *title_lb, *prog_bar, *bbox, *stop_bt;
74 dlg = g_malloc(sizeof (progdlg_t));
76 dlg_w = dlg_window_new(title);
77 gtk_window_set_modal(GTK_WINDOW(dlg_w), TRUE);
80 * Container for dialog widgets.
82 main_vb = gtk_vbox_new(FALSE, 1);
83 gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
84 gtk_container_add(GTK_CONTAINER(dlg_w), main_vb);
87 * Put the title here as a label indicating what we're
88 * doing; set its alignment and padding so it's aligned on the
91 title_lb = gtk_label_new(title);
92 gtk_box_pack_start(GTK_BOX(main_vb), title_lb, FALSE, TRUE, 3);
93 gtk_misc_set_alignment(GTK_MISC(title_lb), 0.0, 0.0);
94 gtk_misc_set_padding(GTK_MISC(title_lb), 0.0, 0.0);
99 prog_bar = gtk_progress_bar_new();
100 gtk_progress_set_activity_mode(GTK_PROGRESS(prog_bar), FALSE);
101 gtk_box_pack_start(GTK_BOX(main_vb), prog_bar, FALSE, TRUE, 3);
104 * Attach a pointer to the progress bar widget to the top-level
107 gtk_object_set_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY, prog_bar);
110 * Button row: cancel button.
111 * (We put it in an HButtonBox, even though there's only one
112 * of them, so that it doesn't expand to the width of the window.)
114 bbox = gtk_hbutton_box_new();
115 gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5);
116 gtk_container_add(GTK_CONTAINER(main_vb), bbox);
119 * Allow user to either click a "stop this operation" button, or
120 * the close button on the window, to stop an operation in
123 stop_bt = gtk_button_new_with_label(stop_title);
124 gtk_box_pack_start(GTK_BOX (bbox), stop_bt, TRUE, TRUE, 0);
125 gtk_signal_connect(GTK_OBJECT(stop_bt), "clicked",
126 GTK_SIGNAL_FUNC(stop_cb), (gpointer) stop_flag);
127 gtk_signal_connect(GTK_OBJECT(dlg_w), "delete_event",
128 GTK_SIGNAL_FUNC(delete_event_cb), (gpointer) stop_flag);
129 GTK_WIDGET_SET_FLAGS(stop_bt, GTK_CAN_DEFAULT);
130 gtk_widget_grab_default(stop_bt);
131 GTK_WIDGET_SET_FLAGS(stop_bt, GTK_CAN_DEFAULT);
132 gtk_widget_grab_default(stop_bt);
134 gtk_widget_show_all(dlg_w);
142 * Called when the dialog box is to be deleted.
143 * Set the "stop" flag to TRUE, and return TRUE - we don't want the dialog
144 * box deleted now, our caller will do so when they see that the
145 * "stop" flag is TRUE and abort the operation.
148 delete_event_cb(GtkWidget *w, GdkEvent *event, gpointer data)
150 gboolean *stop_flag = (gboolean *) data;
157 * Called when the "stop this operation" button is clicked.
158 * Set the "stop" flag to TRUE; we don't have to destroy the dialog
159 * box, as our caller will do so when they see that the "stop" flag is
160 * true and abort the operation.
163 stop_cb(GtkWidget *w, gpointer data)
165 gboolean *stop_flag = (gboolean *) data;
171 * Set the percentage value of the progress bar.
174 update_progress_dlg(progdlg_t *dlg, gfloat percentage)
176 GtkWidget *dlg_w = dlg->dlg_w;
179 prog_bar = gtk_object_get_data(GTK_OBJECT(dlg_w), PROG_BAR_KEY);
180 gtk_progress_bar_update(GTK_PROGRESS_BAR(prog_bar), percentage);
183 * Flush out the update and process any input events.
185 while (gtk_events_pending())
186 gtk_main_iteration();
190 * Destroy the progress dialog.
193 destroy_progress_dlg(progdlg_t *dlg)
195 GtkWidget *dlg_w = dlg->dlg_w;
197 gtk_widget_destroy(GTK_WIDGET(dlg_w));