/usr/share/help/gl/gnome-devel-demos/radiobutton.c.page is in gnome-devel-docs 3.28.0-1.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | <?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="radiobutton.c" xml:lang="gl">
<info>
<title type="text">RadioButton (C)</title>
<link type="guide" xref="c#buttons"/>
<link type="seealso" xref="togglebutton.c"/>
<link type="seealso" xref="grid.c"/>
<revision version="0.2" date="2012-06-22" status="draft"/>
<credit type="author copyright">
<name>Monica Kochofar</name>
<email its:translate="no">monicakochofar@gmail.com</email>
<years>2012</years>
</credit>
<desc>A choice from multiple checkbuttons</desc>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Fran Dieguez</mal:name>
<mal:email>frandieguez@gnome.org</mal:email>
<mal:years>2012-2013.</mal:years>
</mal:credit>
</info>
<title>RadioButton</title>
<media type="image" mime="image/png" src="media/radiobutton.png"/>
<p>These radiobuttons report their activity in the terminal.</p>
<code mime="text/x-csrc" style="numbered">
#include <gtk/gtk.h>
/*Signal handler for the "toggled" signal of the RadioButton*/
static void
button_toggled_cb (GtkWidget *button,
gpointer user_data)
{
char *b_state;
const char *button_label;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
b_state = "on";
else {
b_state = "off";
g_print ("\n");
}
button_label = gtk_button_get_label (GTK_BUTTON (button));
g_print ("%s was turned %s\n", button_label, b_state);
}
static void
activate (GtkApplication *app,
gpointer user_data)
{
GtkWidget *grid;
GtkWidget *window;
GtkWidget *button1;
GtkWidget *button2;
GtkWidget *button3;
/*Create a window with a set title and default size.
Also, set a border width for the amount of space to leave
inside the window*/
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "RadioButton Example");
gtk_window_set_default_size (GTK_WINDOW (window), 250, 100);
gtk_container_set_border_width (GTK_CONTAINER(window), 20);
/*Create an initial radio button*/
button1 = gtk_radio_button_new_with_label (NULL, "Button 1");
/*Create a second radio button, and add it to the same group as Button 1*/
button2 = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (button1),
"Button 2");
/*Create a third button, and add it to the same group as Button 1*/
button3 = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (button1),
"Button 3");
/*Create a grid, attach the buttons, and position them accordingly*/
grid = gtk_grid_new ();
gtk_grid_attach (GTK_GRID (grid), button1, 0, 0, 1, 1);
gtk_grid_attach (GTK_GRID (grid), button2, 0, 1, 1, 1);
gtk_grid_attach (GTK_GRID (grid), button3, 0, 2, 1, 1);
/*Be sure to set the initial state of each button*/
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button2), TRUE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button1), FALSE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button3), FALSE);
/*Connect the signal handlers (aka Callback functions) to the buttons*/
g_signal_connect (GTK_TOGGLE_BUTTON (button1), "toggled",
G_CALLBACK (button_toggled_cb), window);
g_signal_connect (GTK_TOGGLE_BUTTON (button2), "toggled",
G_CALLBACK (button_toggled_cb), window);
g_signal_connect (GTK_TOGGLE_BUTTON (button3), "toggled",
G_CALLBACK (button_toggled_cb), window);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (grid));
gtk_widget_show_all (window);
}
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);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
</code>
<p>Neste exemplo empregaremos o seguinte:</p>
<list>
<item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkApplication.html">GtkApplication</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkWindow.html">GtkWindow</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/stable/GtkLabel.html">GtkLabel</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/stable/GtkGrid.html">GtkGrid</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/stable/GtkSwitch.html">GtkSwitch</link></p></item>
</list>
</page>
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