gtktreemodelfilter.html

最新gtk中文资料集

<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> A pointer to a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>.

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3811191"></a><h3>
<a name="gtk-tree-model-filter-convert-child-iter-to-iter"></a>gtk_tree_model_filter_convert_child_iter_to_iter ()</h3>
<a class="indexterm" name="id3811208"></a><pre class="programlisting"><a
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
>gboolean</a>            gtk_tree_model_filter_convert_child_iter_to_iter
                                                        (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> *filter_iter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> *child_iter);</pre>
<p>
Sets <em class="parameter"><code>filter_iter</code></em> to point to the row in <em class="parameter"><code>filter</code></em> that corresponds to the
row pointed at by <em class="parameter"><code>child_iter</code></em>.  If <em class="parameter"><code>filter_iter</code></em> was not set, <a
href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"
><code class="literal">FALSE</code></a> is
returned.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter_iter</code></em>&#160;:</span></p></td>
<td> An uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_iter</code></em>&#160;:</span></p></td>
<td> A valid <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to a row on the child model.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> <a
href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a>, if <em class="parameter"><code>filter_iter</code></em> was set, i.e. if <em class="parameter"><code>child_iter</code></em> is a
valid iterator pointing to a visible row in child model.

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3811403"></a><h3>
<a name="gtk-tree-model-filter-convert-iter-to-child-iter"></a>gtk_tree_model_filter_convert_iter_to_child_iter ()</h3>
<a class="indexterm" name="id3811420"></a><pre class="programlisting">void                gtk_tree_model_filter_convert_iter_to_child_iter
                                                        (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> *child_iter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> *filter_iter);</pre>
<p>
Sets <em class="parameter"><code>child_iter</code></em> to point to the row pointed to by <em class="parameter"><code>filter_iter</code></em>.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_iter</code></em>&#160;:</span></p></td>
<td> An uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter_iter</code></em>&#160;:</span></p></td>
<td> A valid <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to a row on <em class="parameter"><code>filter</code></em>.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3811564"></a><h3>
<a name="gtk-tree-model-filter-convert-child-path-to-path"></a>gtk_tree_model_filter_convert_child_path_to_path ()</h3>
<a class="indexterm" name="id3811581"></a><pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath">GtkTreePath</a>*        gtk_tree_model_filter_convert_child_path_to_path
                                                        (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreePath">GtkTreePath</a> *child_path);</pre>
<p>
Converts <em class="parameter"><code>child_path</code></em> to a path relative to <em class="parameter"><code>filter</code></em>. That is, <em class="parameter"><code>child_path</code></em>
points to a path in the child model. The rerturned path will point to the
same row in the filtered model. If <em class="parameter"><code>child_path</code></em> isn't a valid path on the
child model or points to a row which is not visible in <em class="parameter"><code>filter</code></em>, then <a
href="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"
><code class="literal">NULL</code></a>
is returned.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_path</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> to convert.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> A newly allocated <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>, or <a
href="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"
><code class="literal">NULL</code></a>.

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3811749"></a><h3>
<a name="gtk-tree-model-filter-convert-path-to-child-path"></a>gtk_tree_model_filter_convert_path_to_child_path ()</h3>
<a class="indexterm" name="id3811765"></a><pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath">GtkTreePath</a>*        gtk_tree_model_filter_convert_path_to_child_path
                                                        (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter,
                                                         <a class="link" href="GtkTreeModel.html#GtkTreePath">GtkTreePath</a> *filter_path);</pre>
<p>
Converts <em class="parameter"><code>filter_path</code></em> to a path on the child model of <em class="parameter"><code>filter</code></em>. That is,
<em class="parameter"><code>filter_path</code></em> points to a location in <em class="parameter"><code>filter</code></em>. The returned path will
point to the same location in the model not being filtered. If <em class="parameter"><code>filter_path</code></em>
does not point to a location in the child model, <a
href="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"
><code class="literal">NULL</code></a> is returned.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filter_path</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> to convert.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> A newly allocated <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>, or <a
href="/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL:CAPS"
><code class="literal">NULL</code></a>.

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3811933"></a><h3>
<a name="gtk-tree-model-filter-refilter"></a>gtk_tree_model_filter_refilter ()</h3>
<a class="indexterm" name="id3811949"></a><pre class="programlisting">void                gtk_tree_model_filter_refilter      (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter);</pre>
<p>
Emits ::row_changed for each row in the child model, which causes
the filter to re-evaluate whether a row is visible or not.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr></tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3812016"></a><h3>
<a name="gtk-tree-model-filter-clear-cache"></a>gtk_tree_model_filter_clear_cache ()</h3>
<a class="indexterm" name="id3812033"></a><pre class="programlisting">void                gtk_tree_model_filter_clear_cache   (<a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a> *filter);</pre>
<p>
This function should almost never be called. It clears the <em class="parameter"><code>filter</code></em>
of any cached iterators that haven't been reffed with
<a class="link" href="GtkTreeModel.html#gtk-tree-model-ref-node"><code class="function">gtk_tree_model_ref_node()</code></a>. This might be useful if the child model
being filtered is static (and doesn't change often) and there has been
a lot of unreffed access to nodes. As a side effect of this function,
all unreffed iters will be invalid.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>filter</code></em>&#160;:</span></p></td>
<td> A <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>.
</td>
</tr></tbody>
</table></div>
<p class="since">Since  2.4
</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id3812120"></a><h2>Property Details</h2>
<div class="refsect2" lang="en">
<a name="id3812131"></a><h3>
<a name="GtkTreeModelFilter--child-model"></a>The <code class="literal">"child-model"</code> property</h3>
<a class="indexterm" name="id3812148"></a><pre class="programlisting">  "child-model"              <a class="link" href="GtkTreeModel.html" title="GtkTreeModel">GtkTreeModel</a>          : Read / Write / Construct Only</pre>
<p>The model for the filtermodel to filter.</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3812172"></a><h3>
<a name="GtkTreeModelFilter--virtual-root"></a>The <code class="literal">"virtual-root"</code> property</h3>
<a class="indexterm" name="id3812188"></a><pre class="programlisting">  "virtual-root"             <a class="link" href="GtkTreeModel.html#GtkTreePath">GtkTreePath</a>           : Read / Write / Construct Only</pre>
<p>The virtual root (relative to the child model) for this filtermodel.</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id3812213"></a><h2>See Also</h2>
<p>
<a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id3812231"></a><div class="refsect2" lang="en"><a name="id3812232"></a></div>
<hr>
<div class="refsect2" lang="en"><a name="id3812233"></a></div>
</div>
</div>
</body>
</html>