<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="linkbutton.py" xml:lang="de">

  <info>

    <title type="text">LinkButton (Python)</title>

    <link type="guide" xref="beginner.py#buttons"/>

    <link type="next" xref="checkbutton.py"/>

    <revision version="0.1" date="2012-05-23" status="draft"/>

    <credit type="author copyright">

      <name>Marta Maria Casetti</name>

      <email its:translate="no">mmcasetti@gmail.com</email>

      <years>2012</years>

    </credit>

    <desc>A button bound to an URL</desc>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Mario Blättermann</mal:name>

      <mal:email>mario.blaettermann@gmail.com</mal:email>

      <mal:years>2011, 2013</mal:years>

    </mal:credit>

  </info>

  <title>LinkButton</title>

  <media type="image" mime="image/png" src="media/linkbutton.png"/>

  
A button that links to a web page.

  <links type="section"/>

  <section id="code">

    <title>Code used to generate this example</title>

    from gi.repository import Gtk

import sys

class MyWindow(Gtk.ApplicationWindow):

    # a window

    def __init__(self, app):

        Gtk.Window.__init__(self, title="GNOME LinkButton", application=app)

        self.set_default_size(250, 50)

        # a linkbutton pointing to the given URI

        button = Gtk.LinkButton(uri="http://live.gnome.org")

        # with given text

        button.set_label("Link to GNOME live!")

        # add the button to the window

        self.add(button)

class MyApplication(Gtk.Application):

    def __init__(self):

        Gtk.Application.__init__(self)

    def do_activate(self):

        win = MyWindow(self)

        win.show_all()

    def do_startup(self):

        Gtk.Application.do_startup(self)

app = MyApplication()

exit_status = app.run(sys.argv)

sys.exit(exit_status)

  </section>

  <section id="methods">

    <title>Useful methods for a LinkButton widget</title>

    <list>

      <item>
get_visited() returns the 'visited' state (True or False) of the URI where the LinkButton points. The button becomes visited when it is clicked.
</item>

      <item>
set_visited(True) sets the 'visited' state of the URI where the LinkButton points as True (analogously for False).
</item>

      <item>
Each time the button is clicked, the signal "activate-link" is emitted. For an explanation of signals and callback functions, see <link xref="signals-callbacks.py"/>.
</item>

    </list>

  </section>

  <section id="references">

    <title>API-Referenzen</title>

    
In this sample we used the following:

    <list>

      <item>
<link href="http://developer.gnome.org/gtk3/unstable/GtkWindow.html">GtkWindow</link>
</item>

      <item>
<link href="http://developer.gnome.org/gtk3/unstable/GtkLinkButton.html">GtkLinkButton</link>
</item>

    </list>

  </section>

</page>