fix CID 1596595: Resource leaks, and CID 1596594: (CHECKED_RETURN)
[claws.git] / src / gtk / icon_legend.c
1 /*
2  * Claws Mail -- a GTK based, lightweight, and fast e-mail client
3  * Copyright (C) 2005-2022 the Claws Mail team
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 3 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,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU 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, see <http://www.gnu.org/licenses/>.
17  */
18
19 #ifdef HAVE_CONFIG_H
20 #  include "config.h"
21 #include "claws-features.h"
22 #endif
23
24 #include "defs.h"
25
26 #include <glib.h>
27 #include <glib/gi18n.h>
28 #include <gtk/gtk.h>
29 #include <gdk/gdkkeysyms.h>
30
31 #include "gtkutils.h"
32 #include "stock_pixmap.h"
33 #include "prefs_gtk.h"
34
35 #define ICONS 23
36 #define ROWS ((ICONS % 2 == 0)? ICONS / 2: (ICONS + 1) / 2)
37
38 StockPixmap legend_icons[ICONS] = {
39         STOCK_PIXMAP_NEW,
40         STOCK_PIXMAP_UNREAD,
41         STOCK_PIXMAP_REPLIED, 
42         STOCK_PIXMAP_FORWARDED, 
43         STOCK_PIXMAP_REPLIED_AND_FORWARDED, 
44         STOCK_PIXMAP_IGNORETHREAD,
45         STOCK_PIXMAP_WATCHTHREAD,
46         STOCK_PIXMAP_SPAM,
47         STOCK_PIXMAP_CLIP,
48         STOCK_PIXMAP_GPG_SIGNED,
49         STOCK_PIXMAP_KEY,
50         STOCK_PIXMAP_CLIP_GPG_SIGNED,
51         STOCK_PIXMAP_CLIP_KEY,
52         STOCK_PIXMAP_MARK,
53         STOCK_PIXMAP_DELETED,
54         STOCK_PIXMAP_MOVED,
55         STOCK_PIXMAP_COPIED,
56         STOCK_PIXMAP_LOCKED,
57         STOCK_PIXMAP_DIR_OPEN, 
58         STOCK_PIXMAP_DIR_OPEN_HRM,
59         STOCK_PIXMAP_DIR_OPEN_MARK,
60         STOCK_PIXMAP_DIR_NOSELECT_OPEN,
61         STOCK_PIXMAP_DIR_SUBS_OPEN,
62 };
63
64 static gchar *legend_icon_desc[] = {
65 /* status column */
66         N_("New message"),
67         N_("Unread message"),
68         N_("Message has been replied to"),
69         N_("Message has been forwarded"),
70         N_("Message has been forwarded and replied to"),
71         N_("Message is in an ignored thread"),
72         N_("Message is in a watched thread"),
73         N_("Message is spam"),
74 /* attachment column */
75         N_("Message has attachment(s)"),
76         N_("Digitally signed message"),
77         N_("Encrypted message"),
78         N_("Message is signed and has attachment(s)"),
79         N_("Message is encrypted and has attachment(s)"),
80 /* mark column */
81         N_("Marked message"),
82         N_("Message is marked for deletion"),
83         N_("Message is marked for moving"),
84         N_("Message is marked for copying"),
85 /* locked column */
86         N_("Locked message"),
87 /* others */
88         N_("Folder (normal, opened)"),
89         N_("Folder with read messages hidden"),
90         N_("Folder contains marked messages"),
91         N_("IMAP folder which contains subfolders only"),
92         N_("IMAP mailbox showing only subscribed folders"),
93 };
94
95 static struct LegendDialog {
96         GtkWidget *window;
97 } legend;
98
99 static void legend_create(void);
100 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event);
101 static void legend_close(void);
102
103 void legend_show(void)
104 {
105         if (!legend.window)
106                 legend_create();
107         else
108                 gtk_window_present(GTK_WINDOW(legend.window));
109 }
110
111 static void legend_create(void)
112 {
113         GtkWidget *window;
114         GtkWidget *scrolledwindow;
115         GtkWidget *vbox;
116         GtkWidget *confirm_area;
117         GtkWidget *close_button;
118         GtkWidget *hbox;
119         GtkWidget *label;
120         GtkWidget *icon_label;
121         GtkWidget *desc_label;
122         GtkWidget *table;
123         gint i, j, k;
124
125         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "icon_legend");
126         gtk_window_set_title(GTK_WINDOW(window), _("Icon Legend"));
127         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
128         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
129         gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
130         gtk_window_set_default_size(GTK_WINDOW(window), 666, 340);
131         g_signal_connect(G_OBJECT(window), "delete_event",
132                          G_CALLBACK(legend_close), NULL);
133         g_signal_connect(G_OBJECT(window), "key_press_event",
134                          G_CALLBACK(key_pressed), NULL);
135         gtk_widget_realize(window);
136
137         vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 8);
138         gtk_container_add(GTK_CONTAINER(window), vbox);
139         gtk_container_set_border_width(GTK_CONTAINER(vbox), 2);
140
141         hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 8);
142         gtk_widget_show(hbox);
143         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
144
145         label = gtk_label_new(g_strconcat("<span weight=\"bold\">",_("The following icons "
146                                 "are used to show the status of messages and "
147                                 "folders:"), "</span>", NULL));
148         gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
149         gtk_widget_show(label);
150         gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
151
152         scrolledwindow = gtk_scrolled_window_new(NULL, NULL);
153         gtk_scrolled_window_set_policy
154                 (GTK_SCROLLED_WINDOW(scrolledwindow),
155                  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
156         gtk_scrolled_window_set_propagate_natural_height(GTK_SCROLLED_WINDOW(scrolledwindow), TRUE);
157         gtk_widget_show(scrolledwindow);
158         gtk_box_pack_start(GTK_BOX(vbox), scrolledwindow, TRUE, TRUE, 0);
159
160         table = gtk_grid_new();
161         gtk_container_set_border_width(GTK_CONTAINER(table), 8);
162         gtk_grid_set_row_spacing(GTK_GRID(table), 4);
163         gtk_grid_set_column_spacing(GTK_GRID(table), 8);
164
165         for (i = 0, j = 0, k = 0; i < ICONS; ++i, ++k) {
166                 icon_label = stock_pixmap_widget(legend_icons[i]);
167                 gtk_widget_set_halign(icon_label, GTK_ALIGN_CENTER);
168                 gtk_widget_set_valign(icon_label, GTK_ALIGN_CENTER);
169                 gtk_grid_attach(GTK_GRID(table), icon_label, j, k, 1, 1);
170
171                 desc_label = gtk_label_new(gettext(legend_icon_desc[i]));
172                 gtk_label_set_xalign(GTK_LABEL(desc_label), 0.0);
173                 gtk_label_set_line_wrap(GTK_LABEL(desc_label), TRUE);
174                 gtk_grid_attach(GTK_GRID(table), desc_label, j+1, k, 1, 1);
175
176                 if (i == ICONS / 2) {
177                         j = 2;
178                         k = -1;
179                 }
180         }
181
182         gtk_container_add(GTK_CONTAINER(scrolledwindow), GTK_WIDGET(table));
183
184         gtkut_stock_button_set_create(&confirm_area, &close_button, "window-close", _("_Close"),
185                                       NULL, NULL, NULL, NULL, NULL, NULL);
186         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 4);
187         gtk_widget_grab_default(close_button);
188         g_signal_connect_closure
189                 (G_OBJECT(close_button), "clicked",
190                  g_cclosure_new_swap(G_CALLBACK(legend_close),
191                                      window, NULL), FALSE);
192
193         gtk_widget_show_all(window);
194
195         legend.window = window;
196 }
197
198 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event)
199 {
200         if (event && event->keyval == GDK_KEY_Escape) {
201                 legend_close();
202         }
203         return FALSE;
204 }
205
206 static void legend_close(void)
207 {
208         gtk_widget_destroy(legend.window);
209         legend.window = NULL;
210 }