1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
#include <gtk/gtk.h>
/* Callback function for the undo action */
static void
about_callback (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
g_print ("You clicked \"About\"\n");
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GMenu *submenu;
GtkWidget *grid;
GMenu *menumodel;
GtkWidget *window;
GtkWidget *menubutton;
GSimpleAction *about_action;
window = gtk_application_window_new (app);
grid = gtk_grid_new ();
gtk_window_set_title (GTK_WINDOW (window), "MenuButton Example");
gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
menubutton = gtk_menu_button_new ();
gtk_widget_set_size_request (menubutton, 80, 35);
gtk_grid_attach (GTK_GRID (grid), menubutton, 0, 0, 1, 1);
gtk_container_add (GTK_CONTAINER (window), grid);
menumodel = g_menu_new ();
g_menu_append (menumodel, "New", "app.new");
g_menu_append (menumodel, "About", "win.about");
submenu = g_menu_new ();
g_menu_append_submenu (menumodel, "Other", G_MENU_MODEL (submenu));
g_menu_append (submenu, "Quit", "app.quit");
gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (menubutton), G_MENU_MODEL (menumodel));
about_action = g_simple_action_new ("about", NULL);
g_signal_connect (about_action, "activate", G_CALLBACK (about_callback),
GTK_WINDOW (window));
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (about_action));
gtk_widget_show_all (window);
}
static void
new_callback (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
g_print ("You clicked \"New\"\n");
}
static void
quit_callback (GSimpleAction *simple,
GVariant *parameter,
gpointer user_data)
{
GApplication *application = user_data;
g_application_quit (application);
}
static void
startup (GApplication *app,
gpointer user_data)
{
GSimpleAction *new_action;
GSimpleAction *quit_action;
new_action = g_simple_action_new ("new", NULL);
g_signal_connect (new_action, "activate", G_CALLBACK (new_callback), app);
g_action_map_add_action (G_ACTION_MAP (app), G_ACTION (new_action));
quit_action = g_simple_action_new ("quit", NULL);
g_signal_connect (quit_action, "activate", G_CALLBACK (quit_callback), app);
g_action_map_add_action (G_ACTION_MAP (app), G_ACTION (quit_action));
}
int
main (int argc, char **argv)
{
GtkApplication *app;
int status;
app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
g_signal_connect (app, "startup", G_CALLBACK (startup), NULL);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
|
