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<p>The gdk-pixbuf library provides a simple mechanism to load and represent animations.
<a href="classGdk_1_1PixbufAnimation.html#details">More...</a></p>
<p><code>#include <gdkmm/pixbufanimation.h></code></p>
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Inheritance diagram for Gdk::PixbufAnimation:</div>
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<area shape="rect" id="node2" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1Object.html" title="Glib::Object" alt="" coords="37,155,131,181"/><area shape="rect" id="node3" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1ObjectBase.html" title="Glib::ObjectBase" alt="" coords="21,80,147,107"/><area shape="rect" id="node4" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1trackable.html" title="sigc::trackable" alt="" coords="27,5,141,32"/></map>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a17db13cdf6b87ed6e4ee9f2bacd685a9"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a17db13cdf6b87ed6e4ee9f2bacd685a9">~PixbufAnimation</a> ()</td></tr>
<tr class="separator:a17db13cdf6b87ed6e4ee9f2bacd685a9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2bd240996977822cb78fe557fc8c07f0"><td class="memItemLeft" align="right" valign="top">GdkPixbufAnimation* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a2bd240996977822cb78fe557fc8c07f0">gobj</a> ()</td></tr>
<tr class="memdesc:a2bd240996977822cb78fe557fc8c07f0"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C GObject. <a href="#a2bd240996977822cb78fe557fc8c07f0">More...</a><br /></td></tr>
<tr class="separator:a2bd240996977822cb78fe557fc8c07f0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a48e7979c35a6a4482db6137d179fe10e"><td class="memItemLeft" align="right" valign="top">const GdkPixbufAnimation* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a48e7979c35a6a4482db6137d179fe10e">gobj</a> () const </td></tr>
<tr class="memdesc:a48e7979c35a6a4482db6137d179fe10e"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C GObject. <a href="#a48e7979c35a6a4482db6137d179fe10e">More...</a><br /></td></tr>
<tr class="separator:a48e7979c35a6a4482db6137d179fe10e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4eba6a2ff85859cfc4171015861ffcbf"><td class="memItemLeft" align="right" valign="top">GdkPixbufAnimation* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a4eba6a2ff85859cfc4171015861ffcbf">gobj_copy</a> ()</td></tr>
<tr class="memdesc:a4eba6a2ff85859cfc4171015861ffcbf"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. <a href="#a4eba6a2ff85859cfc4171015861ffcbf">More...</a><br /></td></tr>
<tr class="separator:a4eba6a2ff85859cfc4171015861ffcbf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a50a299f886fcad0bfed2a7c81986be39"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a50a299f886fcad0bfed2a7c81986be39">get_width</a> () const </td></tr>
<tr class="memdesc:a50a299f886fcad0bfed2a7c81986be39"><td class="mdescLeft"> </td><td class="mdescRight">Queries the width of the bounding box of a pixbuf animation. <a href="#a50a299f886fcad0bfed2a7c81986be39">More...</a><br /></td></tr>
<tr class="separator:a50a299f886fcad0bfed2a7c81986be39"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5caa2145a85dbb488ca60b03c72b2782"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a5caa2145a85dbb488ca60b03c72b2782">get_height</a> () const </td></tr>
<tr class="memdesc:a5caa2145a85dbb488ca60b03c72b2782"><td class="mdescLeft"> </td><td class="mdescRight">Queries the height of the bounding box of a pixbuf animation. <a href="#a5caa2145a85dbb488ca60b03c72b2782">More...</a><br /></td></tr>
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<tr class="memitem:ac80a08e196de1df9282e851e22a642e4"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#ac80a08e196de1df9282e851e22a642e4">is_static_image</a> () const </td></tr>
<tr class="memdesc:ac80a08e196de1df9282e851e22a642e4"><td class="mdescLeft"> </td><td class="mdescRight">If you load a file with new_from_file() and it turns out to be a plain, unanimated image, then this function will return <code>true</code>. <a href="#ac80a08e196de1df9282e851e22a642e4">More...</a><br /></td></tr>
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<tr class="memitem:a4efed6e73f1034242e787b454f485566"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGdk_1_1Pixbuf.html">Pixbuf</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a4efed6e73f1034242e787b454f485566">get_static_image</a> ()</td></tr>
<tr class="memdesc:a4efed6e73f1034242e787b454f485566"><td class="mdescLeft"> </td><td class="mdescRight">If an animation is really just a plain image (has only one frame), this function returns that image. <a href="#a4efed6e73f1034242e787b454f485566">More...</a><br /></td></tr>
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<tr class="memitem:a7ad528dcc330239499e0c0f6010905b7"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGdk_1_1PixbufAnimationIter.html">PixbufAnimationIter</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a7ad528dcc330239499e0c0f6010905b7">get_iter</a> (const GTimeVal* start_time)</td></tr>
<tr class="memdesc:a7ad528dcc330239499e0c0f6010905b7"><td class="mdescLeft"> </td><td class="mdescRight">Get an iterator for displaying an animation. <a href="#a7ad528dcc330239499e0c0f6010905b7">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a265bac68cda7306ca04c184a58270261"><td class="memItemLeft" align="right" valign="top">static GType </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a265bac68cda7306ca04c184a58270261">get_type</a> ()</td></tr>
<tr class="memdesc:a265bac68cda7306ca04c184a58270261"><td class="mdescLeft"> </td><td class="mdescRight">Get the GType for this class, for use with the underlying GObject type system. <a href="#a265bac68cda7306ca04c184a58270261">More...</a><br /></td></tr>
<tr class="separator:a265bac68cda7306ca04c184a58270261"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a039f247eb93253b2242c4eadfa7f0a79"><td class="memItemLeft" align="right" valign="top">static <a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a><br class="typebreak" />
< <a class="el" href="classGdk_1_1PixbufAnimation.html">PixbufAnimation</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a039f247eb93253b2242c4eadfa7f0a79">create_from_file</a> (const <a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1ustring.html">Glib::ustring</a>& filename)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="related"></a>
Related Functions</h2></td></tr>
<tr><td class="ititle" colspan="2"><p>(Note that these are not member functions.) </p>
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<tr class="memitem:a2685688544b6da7582ab2eb2d4e51111"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a><br class="typebreak" />
< <a class="el" href="classGdk_1_1PixbufAnimation.html">Gdk::PixbufAnimation</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGdk_1_1PixbufAnimation.html#a2685688544b6da7582ab2eb2d4e51111">wrap</a> (GdkPixbufAnimation* object, bool take_copy=false)</td></tr>
<tr class="memdesc:a2685688544b6da7582ab2eb2d4e51111"><td class="mdescLeft"> </td><td class="mdescRight">A <a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/namespaceGlib.html#a671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object. <a href="#a2685688544b6da7582ab2eb2d4e51111">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The gdk-pixbuf library provides a simple mechanism to load and represent animations. </p>
<p>An animation is conceptually a series of frames to be displayed over time. Each frame is the same size. The animation may not be represented as a series of frames internally; for example, it may be stored as a sprite and instructions for moving the sprite around a background. To display an animation you don't need to understand its representation, however; you just ask gdk-pixbuf what should be displayed at a given point in time. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">virtual Gdk::PixbufAnimation::~PixbufAnimation </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<p>Queries the height of the bounding box of a pixbuf animation. </p>
<dl class="section return"><dt>Returns</dt><dd>Height of the bounding box of the animation. </dd></dl>
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<td class="memname"><a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGdk_1_1PixbufAnimationIter.html">PixbufAnimationIter</a>> Gdk::PixbufAnimation::get_iter </td>
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<p>Get an iterator for displaying an animation. </p>
<p>The iterator provides the frames that should be displayed at a given time. It should be freed after use with Glib::object_unref().</p>
<p><em>start_time</em> would normally come from Glib::get_current_time(), and marks the beginning of animation playback. After creating an iterator, you should immediately display the pixbuf returned by <a class="el" href="classGdk_1_1PixbufAnimationIter.html#a66d583297b87ac3f2b1424526afe962c" title="Gets the current pixbuf which should be displayed; the pixbuf will be the same size as the animation ...">Gdk::PixbufAnimationIter::get_pixbuf()</a>. Then, you should install a timeout (with Glib::timeout_add()) or by some other mechanism ensure that you'll update the image after <a class="el" href="classGdk_1_1PixbufAnimationIter.html#a59be27954e4c177236c5bebfa6c84602" title="Gets the number of milliseconds the current pixbuf should be displayed, or -1 if the current pixbuf s...">Gdk::PixbufAnimationIter::get_delay_time()</a> milliseconds. Each time the image is updated, you should reinstall the timeout with the new, possibly-changed delay time.</p>
<p>As a shortcut, if <em>start_time</em> is <code>0</code>, the result of Glib::get_current_time() will be used automatically.</p>
<p>To update the image (i.e. possibly change the result of <a class="el" href="classGdk_1_1PixbufAnimationIter.html#a66d583297b87ac3f2b1424526afe962c" title="Gets the current pixbuf which should be displayed; the pixbuf will be the same size as the animation ...">Gdk::PixbufAnimationIter::get_pixbuf()</a> to a new frame of the animation), call <a class="el" href="classGdk_1_1PixbufAnimationIter.html#a1bd10ac0d757e79e1d0e4fda7778d0a0" title="Possibly advances an animation to a new frame. ">Gdk::PixbufAnimationIter::advance()</a>.</p>
<p>If you're using <a class="el" href="classGdk_1_1PixbufLoader.html">Gdk::PixbufLoader</a>, in addition to updating the image after the delay time, you should also update it whenever you receive the area_updated signal and <a class="el" href="classGdk_1_1PixbufAnimationIter.html#ad50a6088b03fb35fe65dea11debecd84" title="Used to determine how to respond to the area_updated signal on Gdk::PixbufLoader when loading an anim...">Gdk::PixbufAnimationIter::on_currently_loading_frame()</a> returns <code>true</code>. In this case, the frame currently being fed into the loader has received new data, so needs to be refreshed. The delay time for a frame may also be modified after an area_updated signal, for example if the delay time for a frame is encoded in the data after the frame itself. So your timeout should be reinstalled after any area_updated signal.</p>
<p>A delay time of -1 is possible, indicating "infinite."</p>
<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>An iterator to move over the animation. </dd></dl>
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<p>If an animation is really just a plain image (has only one frame), this function returns that image. </p>
<p>If the animation is an animation, this function returns a reasonable thing to display as a static unanimated image, which might be the first frame, or something more sophisticated. If an animation hasn't loaded any frames yet, this function will return <code>0</code>.</p>
<dl class="section return"><dt>Returns</dt><dd>Unanimated image representing the animation. </dd></dl>
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<p>Get the GType for this class, for use with the underlying GObject type system. </p>
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<p>Queries the width of the bounding box of a pixbuf animation. </p>
<dl class="section return"><dt>Returns</dt><dd>Width of the bounding box of the animation. </dd></dl>
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<td class="memname">GdkPixbufAnimation* Gdk::PixbufAnimation::gobj </td>
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<p>Provides access to the underlying C GObject. </p>
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<td class="memname">const GdkPixbufAnimation* Gdk::PixbufAnimation::gobj </td>
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<p>Provides access to the underlying C GObject. </p>
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<td class="memname">GdkPixbufAnimation* Gdk::PixbufAnimation::gobj_copy </td>
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<p>Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. </p>
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<td class="memname">bool Gdk::PixbufAnimation::is_static_image </td>
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<p>If you load a file with new_from_file() and it turns out to be a plain, unanimated image, then this function will return <code>true</code>. </p>
<p>Use <a class="el" href="classGdk_1_1PixbufAnimation.html#a4efed6e73f1034242e787b454f485566" title="If an animation is really just a plain image (has only one frame), this function returns that image...">get_static_image()</a> to retrieve the image.</p>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the "animation" was really just an image. </dd></dl>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<td class="memname"><a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGdk_1_1PixbufAnimation.html">Gdk::PixbufAnimation</a> > wrap </td>
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<p>A <a class="elRef" href="http://library.gnome.org/devel/glibmm/unstable/namespaceGlib.html#a671306f4a3a0cae5ab4d7a9d54886592">Glib::wrap()</a> method for this object. </p>
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<tr><td class="paramname">object</td><td>The C instance. </td></tr>
<tr><td class="paramname">take_copy</td><td>False if the result should take ownership of the C instance. True if it should take a new copy or ref. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>A C++ instance that wraps this C instance. </dd></dl>
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