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<h2><span class="refentrytitle"><a name="GwyMarkerBox.top_of_page"></a>GwyMarkerBox</span></h2>
<p>GwyMarkerBox — Base class for box with movable markers.</p>
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<div class="refsynopsisdiv">
<a name="GwyMarkerBox.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <libgwydgets/gwydgets.h>
struct <a class="link" href="GwyMarkerBox.html#GwyMarkerBox-struct" title="struct GwyMarkerBox">GwyMarkerBox</a>;
struct <a class="link" href="GwyMarkerBox.html#GwyMarkerBoxClass" title="struct GwyMarkerBoxClass">GwyMarkerBoxClass</a>;
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="GwyMarkerBox.html#GwyMarkerValidateFunc" title="GwyMarkerValidateFunc ()">*GwyMarkerValidateFunc</a>) (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a class="link" href="libgwydgets-gwydgetenums.html#GwyMarkerOperationType" title="enum GwyMarkerOperationType"><span class="type">GwyMarkerOperationType</span></a> optype</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *i</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *pos</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-selected-marker" title="gwy_marker_box_get_selected_marker ()">gwy_marker_box_get_selected_marker</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-selected-marker" title="gwy_marker_box_set_selected_marker ()">gwy_marker_box_set_selected_marker</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-marker-position" title="gwy_marker_box_get_marker_position ()">gwy_marker_box_get_marker_position</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-marker-position" title="gwy_marker_box_set_marker_position ()">gwy_marker_box_set_marker_position</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> pos</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-add-marker" title="gwy_marker_box_add_marker ()">gwy_marker_box_add_marker</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> pos</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-remove-marker" title="gwy_marker_box_remove_marker ()">gwy_marker_box_remove_marker</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-nmarkers" title="gwy_marker_box_get_nmarkers ()">gwy_marker_box_get_nmarkers</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a> * <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-markers" title="gwy_marker_box_get_markers ()">gwy_marker_box_get_markers</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-markers" title="gwy_marker_box_set_markers ()">gwy_marker_box_set_markers</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *markers</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-flipped" title="gwy_marker_box_set_flipped ()">gwy_marker_box_set_flipped</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> flipped</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-flipped" title="gwy_marker_box_get_flipped ()">gwy_marker_box_get_flipped</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-highlight-selected" title="gwy_marker_box_set_highlight_selected ()">gwy_marker_box_set_highlight_selected</a>
(<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> highlight</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-highlight-selected" title="gwy_marker_box_get_highlight_selected ()">gwy_marker_box_get_highlight_selected</a>
(<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-validator" title="gwy_marker_box_set_validator ()">gwy_marker_box_set_validator</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a class="link" href="GwyMarkerBox.html#GwyMarkerValidateFunc" title="GwyMarkerValidateFunc ()"><span class="type">GwyMarkerValidateFunc</span></a> validate</code></em>);
<a class="link" href="GwyMarkerBox.html#GwyMarkerValidateFunc" title="GwyMarkerValidateFunc ()"><span class="returnvalue">GwyMarkerValidateFunc</span></a> <a class="link" href="GwyMarkerBox.html#gwy-marker-box-get-validator" title="gwy_marker_box_get_validator ()">gwy_marker_box_get_validator</a> (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----<a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
+----<a href="/usr/share/gtk-doc/html/gtk2/GtkObject.html">GtkObject</a>
+----<a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html">GtkWidget</a>
+----GwyMarkerBox
+----<a class="link" href="GwyHMarkerBox.html" title="GwyHMarkerBox">GwyHMarkerBox</a>
</pre>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GwyMarkerBox implements
AtkImplementorIface and <a href="/usr/share/gtk-doc/html/gtk3/GtkBuildable.html">GtkBuildable</a>.</p>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox--flipped" title='The "flipped" property'>flipped</a>" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox--highlight-selected" title='The "highlight-selected" property'>highlight-selected</a>" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox--selected-marker" title='The "selected-marker" property'>selected-marker</a>" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox-marker-added" title='The "marker-added" signal'>marker-added</a>" : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox-marker-moved" title='The "marker-moved" signal'>marker-moved</a>" : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox-marker-removed" title='The "marker-removed" signal'>marker-removed</a>" : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox-marker-selected" title='The "marker-selected" signal'>marker-selected</a>" : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
"<a class="link" href="GwyMarkerBox.html#GwyMarkerBox-markers-set" title='The "markers-set" signal'>markers-set</a>" : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a>
</pre>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.description"></a><h2>Description</h2>
<p>
<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> is a box with triangular markers that can be
moved, added, and/or deleted. One or no marker can be selected.
</p>
<p>
Marker coordinates are always from the range [0.0, 1.0].
</p>
<p>
It is possible to fully control where and how user can move, add, and/or
delete markers with marker validation function set with
<a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-validator" title="gwy_marker_box_set_validator ()"><code class="function">gwy_marker_box_set_validator()</code></a>. By default, no validator is in effect
and user can change markers completely freely.
</p>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GwyMarkerBox-struct"></a><h3>struct GwyMarkerBox</h3>
<pre class="programlisting">struct GwyMarkerBox;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBoxClass"></a><h3>struct GwyMarkerBoxClass</h3>
<pre class="programlisting">struct GwyMarkerBoxClass {
GtkWidgetClass parent_class;
/* signals */
void (*marker_selected)(GwyMarkerBox *mbox,
gint i);
void (*marker_moved)(GwyMarkerBox *mbox,
gint i);
void (*marker_added)(GwyMarkerBox *mbox,
gint i);
void (*marker_removed)(GwyMarkerBox *mbox,
gint i);
void (*markers_set)(GwyMarkerBox *mbox);
/* virtual methods */
void (*draw_box)(GwyMarkerBox *mbox);
void (*draw_marker)(GwyMarkerBox *mbox,
gint i);
void (*reserved1)(void);
void (*reserved2)(void);
void (*reserved3)(void);
};
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerValidateFunc"></a><h3>GwyMarkerValidateFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GwyMarkerValidateFunc) (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a class="link" href="libgwydgets-gwydgetenums.html#GwyMarkerOperationType" title="enum GwyMarkerOperationType"><span class="type">GwyMarkerOperationType</span></a> optype</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *i</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *pos</code></em>);</pre>
<p>
Marker validation function.
</p>
<p>
It is called for each single-marker change, both by user and by
<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> methods. However, it is NOT called upon
<a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-markers" title="gwy_marker_box_set_markers ()"><code class="function">gwy_marker_box_set_markers()</code></a> as it is unclear how the validation should
proceed.
</p>
<p>
The function must not have any side-effects, that is it must not assume the
operation will be actually performed when it returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>.
</p>
<p>
Marker validator that allows free marker movement but disables insertion
and removal could look:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
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11</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="keyword">static</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a></span>
<span class="function">validate_marker</span><span class="symbol">(</span><span class="usertype">GwyMarkerBox</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">mbox</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">GwyMarkerOperationType</span><span class="normal"> optype</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">gint</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">i</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">gdouble</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">pos</span><span class="symbol">)</span>
<span class="cbracket">{</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">optype </span><span class="symbol">==</span><span class="normal"> <a href="libgwydgets-gwydgetenums.html#GWY-MARKER-OPERATION-ADD:CAPS">GWY_MARKER_OPERATION_ADD</a></span>
<span class="normal"> </span><span class="symbol">||</span><span class="normal"> optype </span><span class="symbol">==</span><span class="normal"> <a href="libgwydgets-gwydgetenums.html#GWY-MARKER-OPERATION-REMOVE:CAPS">GWY_MARKER_OPERATION_REMOVE</a></span><span class="symbol">)</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS">TRUE</a></span><span class="symbol">;</span>
<span class="cbracket">}</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
</p>
<p>
Marker validator that assures markers are sorted and there is always
a marker at 0.0 and another at 1.0 could look:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
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<td class="listing_code"><pre class="programlisting"><span class="keyword">static</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a></span>
<span class="function">validate_marker</span><span class="symbol">(</span><span class="usertype">GwyMarkerBox</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">mbox</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">GwyMarkerOperationType</span><span class="normal"> optype</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">gint</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">i</span><span class="symbol">,</span>
<span class="normal"> </span><span class="usertype">gdouble</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">pos</span><span class="symbol">)</span>
<span class="cbracket">{</span>
<span class="normal"> </span><span class="keyword">const</span><span class="normal"> </span><span class="usertype">gdouble</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">markers</span><span class="symbol">;</span>
<span class="normal"> </span><span class="usertype">gint</span><span class="normal"> j</span><span class="symbol">,</span><span class="normal"> n</span><span class="symbol">;</span>
<span class="normal"> n </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="#gwy-marker-box-get-nmarkers">gwy_marker_box_get_nmarkers</a></span><span class="symbol">(</span><span class="normal">mbox</span><span class="symbol">);</span>
<span class="normal"> </span><span class="comment">/* Insertions are sorted */</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">optype </span><span class="symbol">==</span><span class="normal"> <a href="libgwydgets-gwydgetenums.html#GWY-MARKER-OPERATION-ADD:CAPS">GWY_MARKER_OPERATION_ADD</a></span><span class="symbol">)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal"> markers </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="#gwy-marker-box-get-markers">gwy_marker_box_get_markers</a></span><span class="symbol">(</span><span class="normal">mbox</span><span class="symbol">);</span>
<span class="normal"> </span><span class="keyword">for</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">j </span><span class="symbol">=</span><span class="normal"> </span><span class="number">0</span><span class="symbol">;</span><span class="normal"> j </span><span class="symbol"><</span><span class="normal"> n</span><span class="symbol">;</span><span class="normal"> j</span><span class="symbol">++)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(*</span><span class="normal">pos </span><span class="symbol"><</span><span class="normal"> markers</span><span class="symbol">[</span><span class="normal">j</span><span class="symbol">])</span>
<span class="normal"> </span><span class="keyword">break</span><span class="symbol">;</span>
<span class="normal"> </span><span class="cbracket">}</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">j </span><span class="symbol">==</span><span class="normal"> </span><span class="number">0</span><span class="normal"> </span><span class="symbol">||</span><span class="normal"> j </span><span class="symbol">==</span><span class="normal"> n</span><span class="symbol">)</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span>
<span class="normal"> </span><span class="symbol">*</span><span class="normal">i </span><span class="symbol">=</span><span class="normal"> j</span><span class="symbol">;</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS">TRUE</a></span><span class="symbol">;</span>
<span class="normal"> </span><span class="cbracket">}</span>
<span class="normal"> </span><span class="comment">/* Nothing at all can be done with border markers */</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(*</span><span class="normal">i </span><span class="symbol">==</span><span class="normal"> </span><span class="number">0</span><span class="normal"> </span><span class="symbol">||</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">i </span><span class="symbol">==</span><span class="normal"> n</span><span class="symbol">-</span><span class="number">1</span><span class="symbol">)</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span>
<span class="normal"> </span><span class="comment">/* Inner markers can be moved only from previous to next */</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">optype </span><span class="symbol">==</span><span class="normal"> <a href="libgwydgets-gwydgetenums.html#GWY-MARKER-OPERATION-MOVE:CAPS">GWY_MARKER_OPERATION_MOVE</a></span><span class="symbol">)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal"> markers </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="#gwy-marker-box-get-markers">gwy_marker_box_get_markers</a></span><span class="symbol">(</span><span class="normal">mbox</span><span class="symbol">);</span>
<span class="normal"> </span><span class="symbol">*</span><span class="normal">pos </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#CLAMP:CAPS">CLAMP</a></span><span class="symbol">(*</span><span class="normal">pos</span><span class="symbol">,</span><span class="normal"> markers</span><span class="symbol">[*</span><span class="normal">i </span><span class="symbol">-</span><span class="normal"> </span><span class="number">1</span><span class="symbol">],</span><span class="normal"> markers</span><span class="symbol">[*</span><span class="normal">i </span><span class="symbol">+</span><span class="normal"> </span><span class="number">1</span><span class="symbol">]);</span>
<span class="normal"> </span><span class="cbracket">}</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS">TRUE</a></span><span class="symbol">;</span>
<span class="cbracket">}</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> to validate markers for.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>optype</code></em> :</span></p></td>
<td>Marker operation to validate.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>Pointer to index of marker to validate. For insertion, it's the
position the marker would be inserted to (but it's not there yet),
for removal it's the position where it still is. The validator can
change the index, but it has an effect only when a marker is being
added.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pos</code></em> :</span></p></td>
<td>Pointer to requested marker position. The validator can change the
position and the marker will be then moved or inserted to the changed
position. For removal, its changes have no effect.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to allow requested the operation, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> to disallow it.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-selected-marker"></a><h3>gwy_marker_box_get_selected_marker ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gwy_marker_box_get_selected_marker (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Gets the index of the currently selected marker in a marker
box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The index of currently selected marker, -1 when none is
selected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-selected-marker"></a><h3>gwy_marker_box_set_selected_marker ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gwy_marker_box_set_selected_marker (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);</pre>
<p>
Selects a marker in a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>The index of marker to select. Pass -1 to unselect.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-marker-position"></a><h3>gwy_marker_box_get_marker_position ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a> gwy_marker_box_get_marker_position (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);</pre>
<p>
Gets the position of a marker in a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>The index of marker to get position of.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The marker position, in the range [0.0, 1.0].</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-marker-position"></a><h3>gwy_marker_box_set_marker_position ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gwy_marker_box_set_marker_position (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> pos</code></em>);</pre>
<p>
Moves a marker in a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>Index of marker to move.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pos</code></em> :</span></p></td>
<td>The new marker position, in the range [0.0, 1.0].</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success. If the move does not validate, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> is returned
and the marker position does not change.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-add-marker"></a><h3>gwy_marker_box_add_marker ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gwy_marker_box_add_marker (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> pos</code></em>);</pre>
<p>
Adds a marker to a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>Index to insert marker at.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pos</code></em> :</span></p></td>
<td>Position to insert marker to, in the range [0.0, 1.0].</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>On success, the index the marker was added at. If the insertion
does not validate, -1 is returned and no marker is added.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-remove-marker"></a><h3>gwy_marker_box_remove_marker ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gwy_marker_box_remove_marker (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> i</code></em>);</pre>
<p>
Removes a marker from a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td>Index of marker to remove.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success. If the removal does not validate, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> is
returned and the marker is kept.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-nmarkers"></a><h3>gwy_marker_box_get_nmarkers ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gwy_marker_box_get_nmarkers (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Gets the number of markers in a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The number of markers.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-markers"></a><h3>gwy_marker_box_get_markers ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a> * gwy_marker_box_get_markers (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Gets all markers in a marker box.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The markers as an array of positions, owned by <em class="parameter"><code>mbox</code></em>. It must
not be modified nor freed by caller and it's valid only until
next marker change.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-markers"></a><h3>gwy_marker_box_set_markers ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gwy_marker_box_set_markers (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *markers</code></em>);</pre>
<p>
Sets positions of all markers in a marker box.
</p>
<p>
No validation is performed, even if validator is set. It's up to caller to
set markers that do not logically conflict with the validator.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>The number of markers to set. If it is zero, <em class="parameter"><code>markers</code></em> can be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>markers</code></em> :</span></p></td>
<td>Markers position.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-flipped"></a><h3>gwy_marker_box_set_flipped ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gwy_marker_box_set_flipped (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> flipped</code></em>);</pre>
<p>
Sets whether a marker box is drawn upside down.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>flipped</code></em> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to draw markers upside down.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-flipped"></a><h3>gwy_marker_box_get_flipped ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gwy_marker_box_get_flipped (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Returns whether a marker box is drawn upside down.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</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 markers are drawn upside down.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-highlight-selected"></a><h3>gwy_marker_box_set_highlight_selected ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gwy_marker_box_set_highlight_selected
(<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> highlight</code></em>);</pre>
<p>
Sets whether a marker box highlights selected marker.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>highlight</code></em> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to visually differentiate selected marker, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> to
draw markers uniformly.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-highlight-selected"></a><h3>gwy_marker_box_get_highlight_selected ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gwy_marker_box_get_highlight_selected
(<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Returns whether a marker box highlights selected marker.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</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 selected marker is visually differentiated, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if
markers are drawn uniformly.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-set-validator"></a><h3>gwy_marker_box_set_validator ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gwy_marker_box_set_validator (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>,
<em class="parameter"><code><a class="link" href="GwyMarkerBox.html#GwyMarkerValidateFunc" title="GwyMarkerValidateFunc ()"><span class="type">GwyMarkerValidateFunc</span></a> validate</code></em>);</pre>
<p>
Sets marker box marker validation function.
</p>
<p>
It is used the next time an attempt to change markers is made, no
revalidation is done immediately. It's up to caller to set a validator
that do not logically conflict with the distribution of markers.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>validate</code></em> :</span></p></td>
<td>Marker validation function. Pass <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to disable validation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-marker-box-get-validator"></a><h3>gwy_marker_box_get_validator ()</h3>
<pre class="programlisting"><a class="link" href="GwyMarkerBox.html#GwyMarkerValidateFunc" title="GwyMarkerValidateFunc ()"><span class="returnvalue">GwyMarkerValidateFunc</span></a> gwy_marker_box_get_validator (<em class="parameter"><code><a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *mbox</code></em>);</pre>
<p>
Gets the marker validation function currently in use.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>mbox</code></em> :</span></p></td>
<td>A marker box.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The marker validation function.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GwyMarkerBox--flipped"></a><h3>The <code class="literal">"flipped"</code> property</h3>
<pre class="programlisting"> "flipped" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Whether marks are drawn upside down.</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox--highlight-selected"></a><h3>The <code class="literal">"highlight-selected"</code> property</h3>
<pre class="programlisting"> "highlight-selected" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Whether to visually differentiate selected marker.</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox--selected-marker"></a><h3>The <code class="literal">"selected-marker"</code> property</h3>
<pre class="programlisting"> "selected-marker" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>The index of selected marker, -1 if none.</p>
<p>Allowed values: [-1,1024]</p>
<p>Default value: -1</p>
</div>
</div>
<div class="refsect1">
<a name="GwyMarkerBox.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GwyMarkerBox-marker-added"></a><h3>The <code class="literal">"marker-added"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *arg1,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> gwymarkerbox,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
The ::marker-added signal is emitted when a marker is added.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>arg1</code></em> :</span></p></td>
<td>The index a marker was added at.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gwymarkerbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox-marker-moved"></a><h3>The <code class="literal">"marker-moved"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *arg1,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> gwymarkerbox,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
The ::marker-moved signal is emitted when a marker is moved.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>arg1</code></em> :</span></p></td>
<td>The index of moved marker.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gwymarkerbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox-marker-removed"></a><h3>The <code class="literal">"marker-removed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *arg1,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> gwymarkerbox,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
The ::marker-removed signal is emitted when a marker is removed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>arg1</code></em> :</span></p></td>
<td>The index a marker was removed from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gwymarkerbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox-marker-selected"></a><h3>The <code class="literal">"marker-selected"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *arg1,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> gwymarkerbox,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
The ::marker-selected signal is emitted when marker selection changes.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>arg1</code></em> :</span></p></td>
<td>The index of selected marker, -1 when marker was unselected.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gwymarkerbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GwyMarkerBox-markers-set"></a><h3>The <code class="literal">"markers-set"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> *gwymarkerbox,
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">Run First</code></a></pre>
<p>
The ::markers-set signal is emitted when markers are explicitly set
with <a class="link" href="GwyMarkerBox.html#gwy-marker-box-set-markers" title="gwy_marker_box_set_markers ()"><code class="function">gwy_marker_box_set_markers()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gwymarkerbox</code></em> :</span></p></td>
<td>The <a class="link" href="GwyMarkerBox.html" title="GwyMarkerBox"><span class="type">GwyMarkerBox</span></a> which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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