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<a name="libgwymodule-gwymodule-graph"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgwymodule-gwymodule-graph.top_of_page"></a>gwymodule-graph</span></h2>
<p>gwymodule-graph — Graph modules</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-graph.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="libgwymodule-gwymodule-graph.html#GwyGraphFunc" title="GwyGraphFunc ()">*GwyGraphFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-register" title="gwy_graph_func_register ()">gwy_graph_func_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-run" title="gwy_graph_func_run ()">gwy_graph_func_run</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-exists" title="gwy_graph_func_exists ()">gwy_graph_func_exists</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-get-menu-path" title="gwy_graph_func_get_menu_path ()">gwy_graph_func_get_menu_path</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-get-stock-id" title="gwy_graph_func_get_stock_id ()">gwy_graph_func_get_stock_id</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-get-tooltip" title="gwy_graph_func_get_tooltip ()">gwy_graph_func_get_tooltip</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-get-sensitivity-mask" title="gwy_graph_func_get_sensitivity_mask ()">gwy_graph_func_get_sensitivity_mask</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-foreach" title="gwy_graph_func_foreach ()">gwy_graph_func_foreach</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-current" title="gwy_graph_func_current ()">gwy_graph_func_current</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-graph.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libgwymodule/gwymodule.h>
</pre>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-graph.description"></a><h2>Description</h2>
<p>Graph modules implement operations on graphs, e.g., curve fitting.</p>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-graph.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GwyGraphFunc"></a><h3>GwyGraphFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GwyGraphFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="../GwyGraph.html#GwyGraph-struct"><span class="type">GwyGraph</span></a> *graph</code></em>,
<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>The type of graph function.</p>
<div class="refsect3">
<a name="GwyGraphFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>graph</p></td>
<td class="parameter_description"><p>Graph (a <a href="../GwyGraph.html#GwyGraph-struct"><span class="type">GwyGraph</span></a>) to operate on.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Function name from as registered with <a class="link" href="libgwymodule-gwymodule-graph.html#gwy-graph-func-register" title="gwy_graph_func_register ()"><code class="function">gwy_graph_func_register()</code></a>
(single-function modules can safely ignore this argument).</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-register"></a><h3>gwy_graph_func_register ()</h3>
<pre class="programlisting"><a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gwy_graph_func_register (<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
<em class="parameter"><code><a class="link" href="libgwymodule-gwymodule-graph.html#GwyGraphFunc" title="GwyGraphFunc ()"><span class="type">GwyGraphFunc</span></a> func</code></em>,
<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *menu_path</code></em>,
<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *stock_id</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> sens_mask</code></em>,
<em class="parameter"><code>const <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tooltip</code></em>);</pre>
<p>Registers a graph function.</p>
<p>Note: the string arguments are not copied as modules are not expected to
vanish. If they are constructed (non-constant) strings, do not free them.
Should modules ever become unloadable they will get chance to clean-up.</p>
<div class="refsect3">
<a name="gwy-graph-func-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Name of function to register. It should be a valid identifier and
if a module registers only one function, module and function names
should be the same.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The function itself.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>menu_path</p></td>
<td class="parameter_description"><p>Menu path under Graph menu. The menu path should be
marked translatabe, but passed untranslated (to allow merging
of translated and untranslated submenus).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>stock_id</p></td>
<td class="parameter_description"><p>Stock icon id for toolbar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>sens_mask</p></td>
<td class="parameter_description"><p>Sensitivity mask (a combination of <a href="../libgwyapp-menu.html#GwyMenuSensFlags"><span class="type">GwyMenuSensFlags</span></a> flags).
Usually it is equal to <a href="../libgwyapp-menu.html#GWY-MENU-FLAG-GRAPH:CAPS"><span class="type">GWY_MENU_FLAG_GRAPH</span></a>, but it's
possible to set other requirements.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tooltip</p></td>
<td class="parameter_description"><p>Tooltip for this function.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-register.returns"></a><h4>Returns</h4>
<p> Normally <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>; <a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> on failure.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-run"></a><h3>gwy_graph_func_run ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_graph_func_run (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
<em class="parameter"><code><a href="../GwyGraph.html#GwyGraph-struct"><span class="type">GwyGraph</span></a> *graph</code></em>);</pre>
<p>Runs a graph function identified by <em class="parameter"><code>name</code></em>
.</p>
<div class="refsect3">
<a name="gwy-graph-func-run.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>graph</p></td>
<td class="parameter_description"><p>Graph (a <a href="../GwyGraph.html#GwyGraph-struct"><span class="type">GwyGraph</span></a>).</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-exists"></a><h3>gwy_graph_func_exists ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gwy_graph_func_exists (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>Checks whether a graph function exists.</p>
<div class="refsect3">
<a name="gwy-graph-func-exists.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-exists.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if function <em class="parameter"><code>name</code></em>
exists, <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-get-menu-path"></a><h3>gwy_graph_func_get_menu_path ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gwy_graph_func_get_menu_path (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>Gets menu path of a graph function.</p>
<p>The returned menu path is only the tail part registered by the function,
i.e., without any leading "/Graph".</p>
<div class="refsect3">
<a name="gwy-graph-func-get-menu-path.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-get-menu-path.returns"></a><h4>Returns</h4>
<p> The menu path. The returned string is owned by the module.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-get-stock-id"></a><h3>gwy_graph_func_get_stock_id ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gwy_graph_func_get_stock_id (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>Gets stock icon id of a graph function.</p>
<div class="refsect3">
<a name="gwy-graph-func-get-stock-id.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-get-stock-id.returns"></a><h4>Returns</h4>
<p> The stock icon id. The returned string is owned by the module.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-get-tooltip"></a><h3>gwy_graph_func_get_tooltip ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gwy_graph_func_get_tooltip (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>Gets tooltip for a graph function.</p>
<div class="refsect3">
<a name="gwy-graph-func-get-tooltip.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-get-tooltip.returns"></a><h4>Returns</h4>
<p> The tooltip. The returned string is owned by the module.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-get-sensitivity-mask"></a><h3>gwy_graph_func_get_sensitivity_mask ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gwy_graph_func_get_sensitivity_mask (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
<p>Gets menu sensititivy mask for a graph function.</p>
<div class="refsect3">
<a name="gwy-graph-func-get-sensitivity-mask.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>Graph function name.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-graph-func-get-sensitivity-mask.returns"></a><h4>Returns</h4>
<p> The menu item sensitivity mask (a combination of <a href="../libgwyapp-menu.html#GwyMenuSensFlags"><span class="type">GwyMenuSensFlags</span></a>
flags).</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-foreach"></a><h3>gwy_graph_func_foreach ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_graph_func_foreach (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Doubly-Linked-Lists.html#GFunc"><span class="type">GFunc</span></a> function</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Calls a function for each graph function.</p>
<div class="refsect3">
<a name="gwy-graph-func-foreach.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>function</p></td>
<td class="parameter_description"><p>Function to run for each graph function. It will get function
name (constant string owned by module system) as its first
argument, <em class="parameter"><code>user_data</code></em>
as the second argument.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>function</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-graph-func-current"></a><h3>gwy_graph_func_current ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gwy_graph_func_current (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Obtains the name of currently running graph function.</p>
<p>If no graph function is currently running, <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.</p>
<p>If multiple nested functions are running (which is not usual but technically
possible), the innermost function name is returned.</p>
<div class="refsect3">
<a name="gwy-graph-func-current.returns"></a><h4>Returns</h4>
<p> The name of currently running graph function or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-38.html#api-index-2.38">2.38</a></p>
</div>
</div>
<div class="refsect1">
<a name="libgwymodule-gwymodule-graph.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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