chiark / gitweb /
Merge from disorder.userman
[disorder] / disobedience / progress.c
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1/*
2 * This file is part of DisOrder.
3 * Copyright (C) 2006, 2007 Richard Kettlewell
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20/** @file disobedience/progress.c
21 * @brief Progress bar support
22 */
23
24#include "disobedience.h"
25
26/** @brief State for progress windows */
27struct progress_window {
28 /** @brief The window */
29 GtkWidget *window;
30 /** @brief The bar */
31 GtkWidget *bar;
32};
33
34/** @brief Create a progress window */
35struct progress_window *progress_window_new(const char *title) {
36 struct progress_window *pw = xmalloc(sizeof *pw);
37
38 pw->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
39 gtk_window_set_transient_for(GTK_WINDOW(pw->window),
40 GTK_WINDOW(toplevel));
41 g_signal_connect(pw->window, "destroy",
42 G_CALLBACK(gtk_widget_destroyed), &pw->window);
43 gtk_window_set_default_size(GTK_WINDOW(pw->window), 360, -1);
44 gtk_window_set_title(GTK_WINDOW(pw->window), title);
45 pw->bar = gtk_progress_bar_new();
46 gtk_container_add(GTK_CONTAINER(pw->window), pw->bar);
47 gtk_widget_show_all(pw->window);
48 return pw;
49}
50
51/** @brief Report current progress
52 * The window is automatically destroyed if @p progress >= @p limit.
53 * To cancel a window just call with both set to 0.
54 */
55void progress_window_progress(struct progress_window *pw,
56 int progress,
57 int limit) {
58 if(!pw)
59 return;
60 /* Maybe the user closed the window */
61 if(!pw->window)
62 return;
63 /* Clamp insane or inconvenient values */
64 if(limit <= 0)
65 progress = limit = 1;
66 if(progress < 0)
67 progress = 0;
68 /* Maybe we're done */
69 if(progress >= limit) {
70 gtk_widget_destroy(pw->window);
71 pw->window = pw->bar = 0;
72 return;
73 }
74 /* Display current progress */
75 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(pw->bar),
76 (double)progress / limit);
77}
78
79/*
80Local Variables:
81c-basic-offset:2
82comment-column:40
83fill-column:79
84indent-tabs-mode:nil
85End:
86*/