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<title>GwyAdjustBar: Gwyddion Widgets Library Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#GwyAdjustBar.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
<a href="#GwyAdjustBar.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span>
<a href="#GwyAdjustBar.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties"> <span class="dim">|</span>
<a href="#GwyAdjustBar.properties" class="shortcut">Properties</a></span><span id="nav_signals"> <span class="dim">|</span>
<a href="#GwyAdjustBar.signals" class="shortcut">Signals</a></span>
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<div class="refentry">
<a name="GwyAdjustBar"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GwyAdjustBar.top_of_page"></a>GwyAdjustBar</span></h2>
<p>GwyAdjustBar — Compact adjustment visualisation and modification</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GwyAdjustBar.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">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
</td>
<td class="function_name">
<a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-new" title="gwy_adjust_bar_new ()">gwy_adjust_bar_new</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="GwyAdjustBar.html#gwy-adjust-bar-set-adjustment" title="gwy_adjust_bar_set_adjustment ()">gwy_adjust_bar_set_adjustment</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="returnvalue">GtkAdjustment</span></a> *
</td>
<td class="function_name">
<a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-get-adjustment" title="gwy_adjust_bar_get_adjustment ()">gwy_adjust_bar_get_adjustment</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="GwyAdjustBar.html#gwy-adjust-bar-set-snap-to-ticks" title="gwy_adjust_bar_set_snap_to_ticks ()">gwy_adjust_bar_set_snap_to_ticks</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="GwyAdjustBar.html#gwy-adjust-bar-get-snap-to-ticks" title="gwy_adjust_bar_get_snap_to_ticks ()">gwy_adjust_bar_get_snap_to_ticks</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="GwyAdjustBar.html#gwy-adjust-bar-set-mapping" title="gwy_adjust_bar_set_mapping ()">gwy_adjust_bar_set_mapping</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType"><span class="returnvalue">GwyScaleMappingType</span></a>
</td>
<td class="function_name">
<a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-get-mapping" title="gwy_adjust_bar_get_mapping ()">gwy_adjust_bar_get_mapping</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="GwyAdjustBar.html#gwy-adjust-bar-set-has-check-button" title="gwy_adjust_bar_set_has_check_button ()">gwy_adjust_bar_set_has_check_button</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="GwyAdjustBar.html#gwy-adjust-bar-get-has-check-button" title="gwy_adjust_bar_get_has_check_button ()">gwy_adjust_bar_get_has_check_button</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="GwyAdjustBar.html#gwy-adjust-bar-set-bar-sensitive" title="gwy_adjust_bar_set_bar_sensitive ()">gwy_adjust_bar_set_bar_sensitive</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="GwyAdjustBar.html#gwy-adjust-bar-get-bar-sensitive" title="gwy_adjust_bar_get_bar_sensitive ()">gwy_adjust_bar_get_bar_sensitive</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
</td>
<td class="function_name">
<a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-get-label" title="gwy_adjust_bar_get_label ()">gwy_adjust_bar_get_label</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
</td>
<td class="function_name">
<a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-get-check-button" title="gwy_adjust_bar_get_check_button ()">gwy_adjust_bar_get_check_button</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="type">GtkAdjustment</span></a> *</td>
<td class="property_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar--adjustment" title="The “adjustment” property">adjustment</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar--has-check-button" title="The “has-check-button” property">has-check-button</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType"><span class="type">GwyScaleMappingType</span></a></td>
<td class="property_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar--mapping" title="The “mapping” property">mapping</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="http://developer.gnome.org/doc/API/2.0/gtk/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar--snap-to-ticks" title="The “snap-to-ticks” property">snap-to-ticks</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody><tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar-change-value" title="The “change-value” signal">change-value</a></td>
<td class="signal_flags"><a href="http://developer.gnome.org/doc/API/2.0/gtk/gobjectgobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType">GwyScaleMappingType</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBar-struct" title="struct GwyAdjustBar">GwyAdjustBar</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GwyAdjustBar.html#GwyAdjustBarClass" title="struct GwyAdjustBarClass">GwyAdjustBarClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="http://developer.gnome.org/doc/API/2.0/gtk/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="http://developer.gnome.org/doc/API/2.0/gtk/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk2GtkObject.html#GtkObject-struct">GtkObject</a>
<span class="lineart">╰──</span> <a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkWidget.html#GtkWidget-struct">GtkWidget</a>
<span class="lineart">╰──</span> <a href="http://developer.gnome.org/doc/API/2.0/gtk/gtk3GtkContainer.html#GtkContainer-struct">GtkContainer</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gtk3GtkBin.html#GtkBin-struct">GtkBin</a>
<span class="lineart">╰──</span> GwyAdjustBar
</pre>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GwyAdjustBar implements
AtkImplementorIface and <a href="/usr/share/gtk-doc/html/gtk3GtkBuildable.html#GtkBuildable-struct">GtkBuildable</a>.</p>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libgwydgets/gwydgets.h>
</pre>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.description"></a><h2>Description</h2>
<p><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> is a compact widget for visualisation and modification of the
value of an <a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="type">GtkAdjustment</span></a>. It can contains a label with an overlaid bar
that can be clicked, dragged or modified by the scroll-wheel by the user.
Since the widget does not take keyboard focus, it should be paired with a
<a href="/usr/share/gtk-doc/html/gtk3GtkSpinButton.html#GtkSpinButton-struct"><span class="type">GtkSpinButton</span></a>, sharing the same adjustment. This spin button would also be
the typical mnemonic widget for the adjustment bar.</p>
<p><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> supports several different types of mapping between screen
positions and values of the underlying adjustment. Nevertheless, the
default mapping (signed square root, <a class="link" href="GwyAdjustBar.html#GWY-SCALE-MAPPING-SQRT:CAPS"><code class="literal">GWY_SCALE_MAPPING_SQRT</code></a>) should fit
most situations.</p>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gwy-adjust-bar-new"></a><h3>gwy_adjust_bar_new ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
gwy_adjust_bar_new (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="type">GtkAdjustment</span></a> *adjustment</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *label</code></em>);</pre>
<p>Creates a new adjustment bar.</p>
<p>The label text, if any, is set with mnemonic enabled. However, you still
need to assign it to a widget (presumably a <a href="/usr/share/gtk-doc/html/gtk3GtkSpinButton.html#GtkSpinButton-struct"><span class="type">GtkSpinButton</span></a>) using
<a href="/usr/share/gtk-doc/html/gtk3GtkLabel.html#gtk-label-set-mnemonic-widget"><code class="function">gtk_label_set_mnemonic_widget()</code></a>.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-new.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>adjustment</p></td>
<td class="parameter_description"><p>The adjustment the adjust bar should use, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>label</p></td>
<td class="parameter_description"><p>Text of the adjustment bar label, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-new.returns"></a><h4>Returns</h4>
<p> A new adjustment bar.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-set-adjustment"></a><h3>gwy_adjust_bar_set_adjustment ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_adjust_bar_set_adjustment (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="type">GtkAdjustment</span></a> *adjustment</code></em>);</pre>
<p>Sets the adjustment that an adjustment bar visualises.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-set-adjustment.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>adjustment</p></td>
<td class="parameter_description"><p>Adjustment to use for the value.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-adjustment"></a><h3>gwy_adjust_bar_get_adjustment ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="returnvalue">GtkAdjustment</span></a> *
gwy_adjust_bar_get_adjustment (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Obtains the adjustment that an adjustment bar visualises.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-adjustment.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-adjustment.returns"></a><h4>Returns</h4>
<p> The adjustment used by <em class="parameter"><code>adjbar</code></em>
. If no adjustment was set
and the default one is used, function returns <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-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-set-snap-to-ticks"></a><h3>gwy_adjust_bar_set_snap_to_ticks ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_adjust_bar_set_snap_to_ticks (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> setting</code></em>);</pre>
<p>Sets the snapping behaviour of an adjustment bar.</p>
<p>Note the ‘multiples of step size’ condition in fact applies to the
difference from the minimum value. The maximum adjustment value is always
permissible, even if it does not satisfy this condition. Values modified by
the user (i.e. emission of signal "change-value") are snapped, however,
values set explicitly <a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#gtk-adjustment-set-value"><code class="function">gtk_adjustment_set_value()</code></a> are kept intact.</p>
<p>Setting this option to <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> immediately causes an adjustment value change
if it does not satisfy the condition.</p>
<p>It is usually a poor idea to enable snapping for non-linear mappings.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-set-snap-to-ticks.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>setting</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to restrict values to multiples of step size,
<a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> to permit any values.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-snap-to-ticks"></a><h3>gwy_adjust_bar_get_snap_to_ticks ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gwy_adjust_bar_get_snap_to_ticks (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Sets the snapping behaviour of an adjustment bar.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-snap-to-ticks.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-snap-to-ticks.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 values are restricted to multiples of step size.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-set-mapping"></a><h3>gwy_adjust_bar_set_mapping ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_adjust_bar_set_mapping (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>,
<em class="parameter"><code><a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType"><span class="type">GwyScaleMappingType</span></a> mapping</code></em>);</pre>
<p>Sets the mapping function type for an adjustment bar.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-set-mapping.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mapping</p></td>
<td class="parameter_description"><p>Mapping function type between values and screen positions in the
adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-mapping"></a><h3>gwy_adjust_bar_get_mapping ()</h3>
<pre class="programlisting"><a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType"><span class="returnvalue">GwyScaleMappingType</span></a>
gwy_adjust_bar_get_mapping (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Gets the mapping function type of an adjustment bar.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-mapping.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-mapping.returns"></a><h4>Returns</h4>
<p> The type of mapping function between values and screen positions.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-set-has-check-button"></a><h3>gwy_adjust_bar_set_has_check_button ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_adjust_bar_set_has_check_button (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> setting</code></em>);</pre>
<p>Sets whether an adjustment bar has a check button.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-set-has-check-button.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>setting</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to enable a check button; <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> to disable it.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-has-check-button"></a><h3>gwy_adjust_bar_get_has_check_button ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gwy_adjust_bar_get_has_check_button (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Reports whether an adjustment bar has a check button.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-has-check-button.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-has-check-button.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 the adjustment bar has a check button.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-set-bar-sensitive"></a><h3>gwy_adjust_bar_set_bar_sensitive ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gwy_adjust_bar_set_bar_sensitive (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> sensitive</code></em>);</pre>
<p>Sets the sensitivity of an adjustment bar.</p>
<p>The bar's sensitivity can be controlled separately. This is useful when
<em class="parameter"><code>adjbar</code></em>
has a check button because otherwise the bar is the entire widget
and the function is not different from <a href="/usr/share/gtk-doc/html/gtk3GtkWidget.html#gtk-widget-set-sensitive"><code class="function">gtk_widget_set_sensitive()</code></a>.
However, if you want to enable and disable the adjustment bar via the check
button, use this function instead of <a href="/usr/share/gtk-doc/html/gtk3GtkWidget.html#gtk-widget-set-sensitive"><code class="function">gtk_widget_set_sensitive()</code></a> which would
make insensitive also the check button.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-set-bar-sensitive.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>sensitive</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to make the widget's bar sensitive.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-bar-sensitive"></a><h3>gwy_adjust_bar_get_bar_sensitive ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gwy_adjust_bar_get_bar_sensitive (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Reports whether an adjustment bar is sensitive.</p>
<p>See <a class="link" href="GwyAdjustBar.html#gwy-adjust-bar-set-bar-sensitive" title="gwy_adjust_bar_set_bar_sensitive ()"><code class="function">gwy_adjust_bar_set_bar_sensitive()</code></a> for discussion.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-bar-sensitive.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-bar-sensitive.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 the widget's bar is sensitive.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-label"></a><h3>gwy_adjust_bar_get_label ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
gwy_adjust_bar_get_label (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Gets the label widget inside an adjustment bar.</p>
<p>Use <a href="/usr/share/gtk-doc/html/gtk3GtkLabel.html#gtk-label-set-mnemonic-widget"><code class="function">gtk_label_set_mnemonic_widget()</code></a> to set the mnemonic widget for the label
or change the label text.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-label.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-label.returns"></a><h4>Returns</h4>
<p> The label widget.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-adjust-bar-get-check-button"></a><h3>gwy_adjust_bar_get_check_button ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gtk3GtkWidget.html#GtkWidget-struct"><span class="returnvalue">GtkWidget</span></a> *
gwy_adjust_bar_get_check_button (<em class="parameter"><code><a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *adjbar</code></em>);</pre>
<p>Gets the check button of an adjustment bar.</p>
<p>Connect to the "toggled" signal of the check button. Modifying it is not
recommended.</p>
<div class="refsect3">
<a name="gwy-adjust-bar-get-check-button.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>adjbar</p></td>
<td class="parameter_description"><p>An adjustment bar.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gwy-adjust-bar-get-check-button.returns"></a><h4>Returns</h4>
<p> The check button widget, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if there is none.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GwyScaleMappingType"></a><h3>enum GwyScaleMappingType</h3>
<p>Type of adjustment bar mapping functions.</p>
<div class="refsect3">
<a name="GwyScaleMappingType.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GWY-SCALE-MAPPING-LINEAR:CAPS"></a>GWY_SCALE_MAPPING_LINEAR</p></td>
<td class="enum_member_description">
<p>Linear mapping between values and screen
positions. This recommended for signed additive
quantities of a limited range.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GWY-SCALE-MAPPING-SQRT:CAPS"></a>GWY_SCALE_MAPPING_SQRT</p></td>
<td class="enum_member_description">
<p>Screen positions correspond to ‘signed square
roots’ of the value. This is the
recommended general-purpose default mapping type as
it works with both signed and usigned quantities
and offers good sensitivity for both large and
small values.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GWY-SCALE-MAPPING-LOG:CAPS"></a>GWY_SCALE_MAPPING_LOG</p></td>
<td class="enum_member_description">
<p>Screen positions correspond to logarithms of values.
The adjustment range must contain only positive
values. For quantities of extreme ranges this
mapping may be preferred to <a class="link" href="GwyAdjustBar.html#GWY-SCALE-MAPPING-SQRT:CAPS"><code class="literal">GWY_SCALE_MAPPING_SQRT</code></a>.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GwyAdjustBar-struct"></a><h3>struct GwyAdjustBar</h3>
<pre class="programlisting">struct GwyAdjustBar;</pre>
<p>Adjustment bar widget visualising an adjustment.</p>
<p>The <a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> struct contains private data only and should be accessed
using the functions below.</p>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GwyAdjustBarClass"></a><h3>struct GwyAdjustBarClass</h3>
<pre class="programlisting">struct GwyAdjustBarClass {
};
</pre>
<p>Class of adjustment bars visualising adjustments.</p>
<p class="since">Since: <a class="link" href="api-index-2-49.html#api-index-2.49">2.49</a></p>
</div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GwyAdjustBar--adjustment"></a><h3>The <code class="literal">“adjustment”</code> property</h3>
<pre class="programlisting"> “adjustment” <a href="/usr/share/gtk-doc/html/gtk3GtkAdjustment.html#GtkAdjustment-struct"><span class="type">GtkAdjustment</span></a> *</pre>
<p>Adjustment representing the value.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyAdjustBar--has-check-button"></a><h3>The <code class="literal">“has-check-button”</code> property</h3>
<pre class="programlisting"> “has-check-button” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Whether the adjust bar has a check button.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyAdjustBar--mapping"></a><h3>The <code class="literal">“mapping”</code> property</h3>
<pre class="programlisting"> “mapping” <a class="link" href="GwyAdjustBar.html#GwyScaleMappingType" title="enum GwyScaleMappingType"><span class="type">GwyScaleMappingType</span></a></pre>
<p>Mapping function between values and screen positions.</p>
<p>Flags: Read / Write</p>
<p>Default value: GWY_SCALE_MAPPING_SQRT</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyAdjustBar--snap-to-ticks"></a><h3>The <code class="literal">“snap-to-ticks”</code> property</h3>
<pre class="programlisting"> “snap-to-ticks” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Whether only values that are multiples of step size are allowed.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
</div>
<div class="refsect1">
<a name="GwyAdjustBar.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GwyAdjustBar-change-value"></a><h3>The <code class="literal">“change-value”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> *gwyadjustbar,
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> arg1,
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>The ::change-value signal is emitted when the user interactively
changes the value.</p>
<p>It is an action signal.</p>
<div class="refsect3">
<a name="GwyAdjustBar-change-value.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>gwyadjustbar</p></td>
<td class="parameter_description"><p>The <a class="link" href="GwyAdjustBar.html" title="GwyAdjustBar"><span class="type">GwyAdjustBar</span></a> which received the signal.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>arg1</p></td>
<td class="parameter_description"><p>New value for <em class="parameter"><code>gwyadjustbar</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobjectgobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></p>
</div>
</div>
</div>
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