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<a name="goffice-0.10-Cairo-utilities"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="goffice-0.10-Cairo-utilities.top_of_page"></a>Cairo utilities</span></h2>
<p>Cairo utilities</p>
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</tr></table></div>
<div class="refsect1">
<a name="goffice-0.10-Cairo-utilities.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="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="goffice-0.10-Cairo-utilities.html#GO-CAIRO-CLAMP:CAPS" title="GO_CAIRO_CLAMP()">GO_CAIRO_CLAMP</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="goffice-0.10-Cairo-utilities.html#GO-CAIRO-CLAMP-SNAP:CAPS" title="GO_CAIRO_CLAMP_SNAP()">GO_CAIRO_CLAMP_SNAP</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="goffice-0.10-Cairo-utilities.html#go-cairo-convert-data-from-pixbuf" title="go_cairo_convert_data_from_pixbuf ()">go_cairo_convert_data_from_pixbuf</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="goffice-0.10-Cairo-utilities.html#go-cairo-convert-data-to-pixbuf" title="go_cairo_convert_data_to_pixbuf ()">go_cairo_convert_data_to_pixbuf</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="goffice-0.10-Cairo-utilities.html#go-cairo-emit-svg-path" title="go_cairo_emit_svg_path ()">go_cairo_emit_svg_path</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="goffice-0.10-Cairo-utilities.html#go-cairo-surface-is-vector" title="go_cairo_surface_is_vector ()">go_cairo_surface_is_vector</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="goffice-0.10-Cairo-utilities.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="goffice-0.10-Cairo-utilities.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GO-CAIRO-CLAMP:CAPS"></a><h3>GO_CAIRO_CLAMP()</h3>
<pre class="programlisting">#define GO_CAIRO_CLAMP(x) CLAMP((x),-8000000,8000000)
</pre>
</div>
<hr>
<div class="refsect2">
<a name="GO-CAIRO-CLAMP-SNAP:CAPS"></a><h3>GO_CAIRO_CLAMP_SNAP()</h3>
<pre class="programlisting">#define GO_CAIRO_CLAMP_SNAP(x,even) GO_CAIRO_CLAMP(even ? floor (x + .5):floor (x) + .5)
</pre>
</div>
<hr>
<div class="refsect2">
<a name="go-cairo-convert-data-from-pixbuf"></a><h3>go_cairo_convert_data_from_pixbuf ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
go_cairo_convert_data_from_pixbuf (<em class="parameter"><code>unsigned <span class="type">char</span> *dst</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> const *src</code></em>,
<em class="parameter"><code><span class="type">int</span> width</code></em>,
<em class="parameter"><code><span class="type">int</span> height</code></em>,
<em class="parameter"><code><span class="type">int</span> rowstride</code></em>);</pre>
<p>Converts the pixel data stored in <em class="parameter"><code>src</code></em>
in GDK_COLORSPACE_RGB pixbuf
format to CAIRO_FORMAT_ARGB32 cairo format and move them
to <em class="parameter"><code>dst</code></em>
. If <em class="parameter"><code>src</code></em>
== <em class="parameter"><code>dst</code></em>
, pixel are converted in place.</p>
<div class="refsect3">
<a name="go-cairo-convert-data-from-pixbuf.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>src</p></td>
<td class="parameter_description"><p>a pointer to pixel data in pixbuf format</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst</p></td>
<td class="parameter_description"><p>a pointer to pixel data in cairo format</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>image width</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>image height</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rowstride</p></td>
<td class="parameter_description"><p>data rowstride</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="go-cairo-convert-data-to-pixbuf"></a><h3>go_cairo_convert_data_to_pixbuf ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
go_cairo_convert_data_to_pixbuf (<em class="parameter"><code>unsigned <span class="type">char</span> *dst</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> const *src</code></em>,
<em class="parameter"><code><span class="type">int</span> width</code></em>,
<em class="parameter"><code><span class="type">int</span> height</code></em>,
<em class="parameter"><code><span class="type">int</span> rowstride</code></em>);</pre>
<p>Converts the pixel data stored in <em class="parameter"><code>src</code></em>
in CAIRO_FORMAT_ARGB32 cairo format
to GDK_COLORSPACE_RGB pixbuf format and move them
to <em class="parameter"><code>dst</code></em>
. If <em class="parameter"><code>src</code></em>
== <em class="parameter"><code>dst</code></em>
, pixel are converted in place.</p>
<div class="refsect3">
<a name="go-cairo-convert-data-to-pixbuf.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>src</p></td>
<td class="parameter_description"><p>a pointer to pixel data in cairo format</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dst</p></td>
<td class="parameter_description"><p>a pointer to pixel data in pixbuf format</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>image width</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>image height</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rowstride</p></td>
<td class="parameter_description"><p>data rowstride</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="go-cairo-emit-svg-path"></a><h3>go_cairo_emit_svg_path ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
go_cairo_emit_svg_path (<em class="parameter"><code><a href="../cairo/cairo-cairo-t.html#cairo-t"><span class="type">cairo_t</span></a> *cr</code></em>,
<em class="parameter"><code><span class="type">char</span> const *path</code></em>);</pre>
<p>Emits a path described as a SVG path string (d property of path elements) to
a cairo context.</p>
<div class="refsect3">
<a name="go-cairo-emit-svg-path.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>cr</p></td>
<td class="parameter_description"><p>a cairo context</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a SVG path</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="go-cairo-surface-is-vector"></a><h3>go_cairo_surface_is_vector ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
go_cairo_surface_is_vector (<em class="parameter"><code><a href="../cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> const *surface</code></em>);</pre>
</div>
</div>
<div class="refsect1">
<a name="goffice-0.10-Cairo-utilities.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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