forked from AuroraMiddleware/gtk
73 lines
2.0 KiB
Plaintext
73 lines
2.0 KiB
Plaintext
|
<chapter id="gtk-migrating-GtkLinkButton">
|
||
|
|
|
||
|
|
<title>Migrating from GnomeHRef to GtkLinkButton</title>
|
||
|
|
|
||
|
|
<para>
|
||
|
|
Since version 2.10, GTK+ provides the #GtkLinkButton widget as a
|
||
|
|
replacement for the <structname>GnomeHRef</structname> widget
|
||
|
|
in the libgnomeui library.
|
||
|
|
</para>
|
||
|
|
|
||
|
|
<para>
|
||
|
|
Porting an application from <structname>GnomeHRef</structname> to
|
||
|
|
#GtkLinkButton is very simple. #GtkLinkButton does not have a
|
||
|
|
default action for "clicked" signal. So instead of simply creating
|
||
|
|
the widget
|
||
|
|
<informalexample><programlisting>
|
||
|
|
GtkWidget *button;
|
||
|
|
|
||
|
|
button = gnome_href_new (url, "");
|
||
|
|
</programlisting></informalexample>
|
||
|
|
you will have to handle the activation of the #GtkLinkButton, using
|
||
|
|
the "clicked" signal for instance
|
||
|
|
<informalexample><programlisting>
|
||
|
|
static void
|
||
|
|
link_button_clicked_cb (GtkWidget *widget,
|
||
|
|
gpointer data)
|
||
|
|
{
|
||
|
|
const gchar *link;
|
||
|
|
|
||
|
|
link = gtk_link_button_get_uri (GTK_LINK_BUTTON (widget));
|
||
|
|
open_browser_at_url (link);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ... */
|
||
|
|
|
||
|
|
GtkWidget *button;
|
||
|
|
|
||
|
|
button = gtk_link_button_new (url);
|
||
|
|
g_signal_connect (button, "clicked",
|
||
|
|
G_CALLBACK (link_button_clicked_cb), NULL);
|
||
|
|
</programlisting></informalexample>
|
||
|
|
If you have more than one #GtkLinkButton instead of connecting
|
||
|
|
a signal to each one, you can use a "hook function" which will be
|
||
|
|
called whenever a user activates a link button
|
||
|
|
<informalexample><programlisting>
|
||
|
|
static void
|
||
|
|
link_button_hook (GtkLinkButton *button,
|
||
|
|
const gchar *link,
|
||
|
|
gpointer user_data)
|
||
|
|
|
||
|
|
{
|
||
|
|
open_browser_at_url (link);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ... */
|
||
|
|
|
||
|
|
GtkWidget *button1 = gtk_link_button_new (uri1);
|
||
|
|
GtkWidget *button2 = gtk_link_button_new (uri2);
|
||
|
|
|
||
|
|
gtk_link_button_set_uri_hook (link_button_hook, NULL, NULL);
|
||
|
|
</programlisting></informalexample>
|
||
|
|
|
||
|
|
</para>
|
||
|
|
|
||
|
|
</chapter>
|
||
|
|
|
||
|
|
<!--
|
||
|
|
Local variables:
|
||
|
|
mode: sgml
|
||
|
|
sgml-parent-document: ("gtk-docs.sgml" "book" "part" "chapter")
|
||
|
|
End:
|
||
|
|
-->
|