Contents of /trunk/src/banner.c

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Revision 209 - (hide annotations)
Fri Jul 10 19:45:31 2009 UTC (14 years, 10 months ago) by harbaum
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1 harbaum 42 /*
2     * Copyright (C) 2008 Andrew Chadwick <andrewc-osm2go@piffle.org>.
3     *
4     * This file is part of OSM2Go.
5     *
6     * OSM2Go is free software: you can redistribute it and/or modify
7     * it under the terms of the GNU General Public License as published by
8     * the Free Software Foundation, either version 3 of the License, or
9     * (at your option) any later version.
10     *
11     * OSM2Go is distributed in the hope that it will be useful,
12     * but WITHOUT ANY WARRANTY; without even the implied warranty of
13     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>.
18     */
19    
20 achadwick 28 #include "banner.h"
21     #include <gtk/gtk.h>
22    
23     #define YETI_PASSIVE_WIDGET appdata->statusbar->widget
24    
25     #ifdef USE_HILDON
26     #include <hildon/hildon.h>
27    
28     // Clear any current animations.
29    
30     void banner_clear(appdata_t *appdata) {
31     if (! (appdata->window && appdata->banner))
32     return;
33     if (appdata->banner_is_grabby) {
34     gtk_grab_remove(YETI_PASSIVE_WIDGET);
35 harbaum 190 GtkWidget *win = GTK_WIDGET(appdata->window);
36 harbaum 192 #if MAEMO_VERSION_MAJOR < 5
37 harbaum 190 GtkWidget *menu = GTK_WIDGET(hildon_window_get_menu(HILDON_WINDOW(win)));
38     GtkWidget *menu_att = gtk_menu_get_attach_widget(
39 harbaum 42 hildon_window_get_menu(HILDON_WINDOW(win)));
40 harbaum 190 #endif
41 achadwick 28 gtk_widget_set_sensitive(win, TRUE);
42 harbaum 192 #if MAEMO_VERSION_MAJOR < 5
43 achadwick 28 gtk_widget_set_sensitive(menu, TRUE);
44     gtk_widget_set_sensitive(menu_att, TRUE);
45 harbaum 190 #endif
46 achadwick 28 }
47     gtk_widget_destroy(appdata->banner);
48     g_object_unref(appdata->banner);
49     appdata->banner = NULL;
50     }
51    
52    
53     // Cancel any animations currently going, and show a brief text message.
54    
55     void banner_show_info(appdata_t *appdata, char *text) {
56     if (!appdata->window)
57     return;
58     banner_clear(appdata);
59     appdata->banner = hildon_banner_show_information(
60     GTK_WIDGET(appdata->window), NULL, text);
61     g_object_ref(appdata->banner);
62     gtk_widget_show(appdata->banner);
63     }
64    
65     /*
66     * Start a spinner animation going to demonstrate that something's happening
67     * behind the scenes. If `grab` is true, use the Yeti trick to grab the pointer
68     * during the animation: this gives the impression that the app is doing
69     * something while blocking the rest of the UI. banner_busy_stop() and
70     * banner_clear() will ungrab if grab is set.
71     *
72     * Yeti mode:
73     * http://mail.gnome.org/archives/gtk-app-devel-list/2006-May/msg00020.html
74     */
75    
76     void banner_busy_start(appdata_t *appdata, gboolean grab, char *text) {
77     if (!appdata->window)
78     return;
79     banner_clear(appdata);
80     appdata->banner = hildon_banner_show_animation(
81     GTK_WIDGET(appdata->window), NULL, text);
82     g_object_ref(appdata->banner);
83     gtk_widget_show(appdata->banner);
84     appdata->banner_is_grabby = grab;
85     if (appdata->banner_is_grabby) {
86 harbaum 192 GtkWidget *win = GTK_WIDGET(appdata->window);
87     #if MAEMO_VERSION_MAJOR < 5
88     GtkWidget *menu = GTK_WIDGET(hildon_window_get_menu(HILDON_WINDOW(win)));
89 harbaum 209 GtkWidget *menu_att = gtk_menu_get_attach_widget(
90 harbaum 42 hildon_window_get_menu(HILDON_WINDOW(win)));
91 harbaum 192 #endif
92 achadwick 28 gtk_widget_set_sensitive(win, FALSE);
93 harbaum 192 #if MAEMO_VERSION_MAJOR < 5
94 achadwick 28 gtk_widget_set_sensitive(menu, FALSE);
95     gtk_widget_set_sensitive(menu_att, FALSE);
96 harbaum 192 #endif
97 achadwick 28 gtk_grab_add(YETI_PASSIVE_WIDGET);
98     }
99     banner_busy_tick();
100     }
101    
102    
103     #else // USE_HILDON
104    
105     /*
106     * For non-Hildon builds, use the "brief" message in the statusbar to show
107     * what's happening.
108     */
109    
110     #include "statusbar.h"
111    
112     void banner_show_info(appdata_t *appdata, char *text) {
113     banner_clear(appdata);
114     statusbar_brief(appdata, text, 0);
115     }
116    
117     void banner_busy_start(appdata_t *appdata, gboolean grab, char *text) {
118     banner_clear(appdata);
119     statusbar_brief(appdata, text, -1);
120     appdata->banner_is_grabby = grab;
121     if (appdata->banner_is_grabby) {
122     GtkWidget *win;
123     win = GTK_WIDGET(appdata->window);
124     gtk_widget_set_sensitive(win, FALSE);
125     gtk_grab_add(YETI_PASSIVE_WIDGET);
126     }
127     }
128    
129     void banner_clear(appdata_t *appdata) {
130     statusbar_brief(appdata, NULL, 0);
131     if (appdata->banner_is_grabby) {
132     GtkWidget *win;
133     win = GTK_WIDGET(appdata->window);
134     gtk_widget_set_sensitive(win, TRUE);
135     gtk_grab_remove(YETI_PASSIVE_WIDGET);
136     }
137     }
138    
139    
140     #endif //USE_HILDON
141    
142    
143     // Just an alias right now
144    
145     void banner_busy_stop(appdata_t *appdata) {
146     banner_clear(appdata);
147     }
148    
149    
150     /*
151     * Process any outstanding GTK events to make the app look more responsive
152     * while still allowing long-running things to process in the mainloop.
153     * This could perhaps be generalised; it isn't banner-specific.
154     */
155    
156     void banner_busy_tick() {
157     while (gtk_events_pending()) {
158     gtk_main_iteration();
159     }
160     }
161    
162    
163     // vim:et:ts=8:sw=2:sts=2:ai
164    
165