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Widgets     Book   Gdk::PixbufAnimation Class Reference Inheritance diagram for Gdk::PixbufAnimation: [legend]List of all members. Public Methods virtual  ~PixbufAnimation () GdkPixbufAnimation*  gobj () const GdkPixbufAnimation*  gobj () const GdkPixbufAnimation*  gobj_copy () int  get_width () const   Queries the width of the bounding box of a pixbuf animation. int  get_height () const   Queries the height of the bounding box of a pixbuf animation. bool  is_static_image () const   If you load a file with new_from_file() and it turns out to be a plain, unanimated image, then this function will return true. Glib::RefPtr<Pixbuf>  get_static_image ()   If an animation is really just a plain image (has only one frame), this function returns that image. Glib::RefPtr<PixbufAnimationIter>  get_iter (const GTimeVal* start_time)   Get an iterator for displaying an animation. Static Public Methods Glib::RefPtr<PixbufAnimation>  create_from_file (const Glib::ustring& filename) Related Functions (Note that these are not member functions.) Glib::RefPtr<Gdk::PixbufAnimation>  wrap (GdkPixbufAnimation* object, bool take_copy=false) Constructor & Destructor Documentation virtual Gdk::PixbufAnimation::~PixbufAnimation (   )  [virtual] Member Function Documentation Glib::RefPtr<PixbufAnimation> Gdk::PixbufAnimation::create_from_file ( const Glib::ustring&    filename )  [static] int Gdk::PixbufAnimation::get_height (   )  const   Queries the height of the bounding box of a pixbuf animation. Returns: Height of the bounding box of the animation. Glib::RefPtr<PixbufAnimationIter> Gdk::PixbufAnimation::get_iter ( const GTimeVal*    start_time )    Get an iterator for displaying an animation. The iterator provides the frames that should be displayed at a given time. It should be freed after use with Glib::object_unref(). start_time 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 Gdk::PixbufAnimationIter::get_pixbuf(). Then, you should install a timeout (with Glib::timeout_add()) or by some other mechanism ensure that you'll update the image after Gdk::PixbufAnimationIter::get_delay_time() milliseconds. Each time the image is updated, you should reinstall the timeout with the new, possibly-changed delay time. As a shortcut, if start_time is 0, the result of Glib::get_current_time() will be used automatically. To update the image (i.e. possibly change the result of Gdk::PixbufAnimationIter::get_pixbuf() to a new frame of the animation), call Gdk::PixbufAnimationIter::advance(). If you're using Gdk::PixbufLoader, in addition to updating the image after the delay time, you should also update it whenever you receive the area_updated signal and Gdk::PixbufAnimationIter::on_currently_loading_frame() returns true. 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. A delay time of -1 is possible, indicating "infinite." Parameters: start_time  Time when the animation starts playing. Returns: An iterator to move over the animation. Glib::RefPtr<Pixbuf> Gdk::PixbufAnimation::get_static_image (   )    If an animation is really just a plain image (has only one frame), this function returns that image. 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 0. Returns: Unanimated image representing the animation. int Gdk::PixbufAnimation::get_width (   )  const   Queries the width of the bounding box of a pixbuf animation. Returns: Width of the bounding box of the animation. const GdkPixbufAnimation* Gdk::PixbufAnimation::gobj (   )  const [inline]   Reimplemented from Glib::ObjectBase. GdkPixbufAnimation* Gdk::PixbufAnimation::gobj (   )  [inline]   Reimplemented from Glib::ObjectBase. GdkPixbufAnimation* Gdk::PixbufAnimation::gobj_copy (   )  bool Gdk::PixbufAnimation::is_static_image (   )  const   If you load a file with new_from_file() and it turns out to be a plain, unanimated image, then this function will return true. Use get_static_image() to retrieve the image. Returns: true if the "animation" was really just an image. Friends And Related Function Documentation Glib::RefPtr<Gdk::PixbufAnimation> wrap ( GdkPixbufAnimation*    object, bool    take_copy = false )  [related] The documentation for this class was generated from the following file: pixbufanimation.h