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<div class="chapter" lang="en">
<div class="titlepage"><div>
<div><h2 class="title">
<a name="gtk-migrating-GtkAssistant"></a>Migrating from GnomeDruid to GtkAssistant</h2></div>
<div><div class="author">
<h3 class="author">
<span class="firstname">Carlos</span> <span class="surname">Garnacho</span>
</h3>
<div class="affiliation"><div class="address"><p><br>
  <code class="email"><<a href="mailto:carlosggnome.org">carlosg<em class="parameter"><code>gnome.org</code></em></a>></code><br>
</p></div></div>
</div></div>
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<div class="toc"><dl>
<dt><span class="section"><a href="gtk-migrating-GtkAssistant.html#inserting-pages">Inserting pages</a></span></dt>
<dt><span class="section"><a href="decorating-the-assistant-pages.html">Decorating the assistant pages</a></span></dt>
<dt><span class="section"><a href="setting-the-page-flow.html">Setting the page flow</a></span></dt>
</dl></div>
<p>
Since version 2.10, GTK+ provides the GtkAssistant widget as a replacement
for the <span class="structname">GnomeDruid</span> widget in the libgnomeui library.
</p>
<p>
Conceptually, both <span class="structname">GtkAssistant</span> and <span class="structname">GnomeDruid</span>
do the same task, but there are several areas where the API has been completely
redesigned, so this chapter covers the main changes between both widgets.
</p>
<div class="section" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="inserting-pages"></a>Inserting pages</h2></div></div></div>
<p>
<span class="structname">GnomeDruid</span> was implemented as a container for
<span class="structname">GnomeDruidPage</span> abstract objects, which are implemented by the
<span class="structname">GnomeDruidPageEdge</span> and <span class="structname">GnomeDruidPageStandard</span>
widgets. Instead, <span class="structname">GtkAssistant</span> allows any widget to be a page, and implements
per-page settings (such as page type or title) as child properties. So instead of:
</p>
<pre class="programlisting">
/* Page 1 */
page = gnome_druid_page_edge_new (GNOME_EDGE_START);
gnome_druid_page_edge_set_test (GNOME_DRUID_PAGE_EDGE (page),
"Welcome to the assistant, it will make your life easier");
gtk_widget_show (page);
gnome_druid_append_page (GNOME_DRUID (druid), GNOME_DRUID_PAGE (page));
/* Page 2 */
page = <code class="function">gnome_druid_page_standard_new()</code>;
gtk_container_add (GTK_CONTAINER (GNOME_DRUID_PAGE_STANDARD (page)->vbox,
<code class="function">create_page1()</code>);
gtk_widget_show_all (page);
gnome_druid_append_page (GNOME_DRUID (druid), GNOME_DRUID_PAGE (page));
/* Page 3 */
page = gnome_druid_page_edge_new (GNOME_EDGE_FINISH);
gnome_druid_page_edge_set_test (GNOME_DRUID_PAGE_EDGE (page),
"Now you are done, your life is easier");
gtk_widget_show (page);
gnome_druid_append_page (GNOME_DRUID (druid), GNOME_DRUID_PAGE (page));
</pre>
<p>
You have to write:
</p>
<pre class="programlisting">
gtk_assistant_append_page (GTK_ASSISTANT (assistant),
gtk_label_new ("Welcome to the assistant, it will make your life easier"));
gtk_assistant_append_page (GTK_ASSISTANT (assistant),
<code class="function">create_page1()</code>);
gtk_assistant_append_page (GTK_ASSISTANT (assistant),
gtk_label_new ("Now you are done, your life is easier");
</pre>
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