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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>zoom</title>
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<a href="#eog-zoom.description" class="shortcut">Description</a>
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<div class="refentry" title="zoom">
<a name="eog-zoom"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="eog-zoom.top_of_page"></a>zoom</span></h2>
<p>zoom</p>
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<td valign="top" align="right"></td>
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<div class="refsynopsisdiv" title="Synopsis">
<a name="eog-zoom.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"><span class="returnvalue">void</span> <a class="link" href="eog-zoom.html#zoom-fit-size" title="zoom_fit_size ()">zoom_fit_size</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_height</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_height</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> upscale_smaller</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *height</code></em>);
<span class="returnvalue">double</span> <a class="link" href="eog-zoom.html#zoom-fit-scale" title="zoom_fit_scale ()">zoom_fit_scale</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_height</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_height</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> upscale_smaller</code></em>);
</pre>
</div>
<div class="refsect1" title="Description">
<a name="eog-zoom.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1" title="Details">
<a name="eog-zoom.details"></a><h2>Details</h2>
<div class="refsect2" title="zoom_fit_size ()">
<a name="zoom-fit-size"></a><h3>zoom_fit_size ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> zoom_fit_size (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_height</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_height</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> upscale_smaller</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *height</code></em>);</pre>
<p>
Computes the final dimensions of an image that is to be scaled to fit to a
certain size. If <em class="parameter"><code>upscale_smaller</code></em> is TRUE, then images smaller than the
destination size will be scaled up; otherwise, they will be left at their
original size.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_width</code></em> :</span></p></td>
<td>Width of destination area.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_height</code></em> :</span></p></td>
<td>Height of destination area.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_width</code></em> :</span></p></td>
<td>Width of source image.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_height</code></em> :</span></p></td>
<td>Height of source image.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>upscale_smaller</code></em> :</span></p></td>
<td>Whether to scale up images smaller than the destination size.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td>Return value for image width.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>Return value for image height.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="zoom_fit_scale ()">
<a name="zoom-fit-scale"></a><h3>zoom_fit_scale ()</h3>
<pre class="programlisting"><span class="returnvalue">double</span> zoom_fit_scale (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> dest_height</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_width</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> src_height</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> upscale_smaller</code></em>);</pre>
<p>
Similar to <a class="link" href="eog-zoom.html#zoom-fit-size" title="zoom_fit_size ()"><code class="function">zoom_fit_size()</code></a>, but returns the zoom factor of the final image
with respect to the original image's size.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_width</code></em> :</span></p></td>
<td>Width of destination area.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_height</code></em> :</span></p></td>
<td>Height of destination area.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_width</code></em> :</span></p></td>
<td>Width of source image.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src_height</code></em> :</span></p></td>
<td>Height of source image.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>upscale_smaller</code></em> :</span></p></td>
<td>Whether to scale up images smaller than the destination size.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Zoom factor with respect to the original size.
</td>
</tr>
</tbody>
</table></div>
</div>
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