org.gnu.gdk
Class PixbufAnimation
public class PixbufAnimation
Provides a simple mechanism to load and represent animations.
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 this class what should be displayed at a given point
in time.
PixbufAnimation
public PixbufAnimation(String filename)
throws JGException
Construct a new Pixbuf animation by loading it from a file.
The file format is detected automatically. If the files format
does not support multi-frame images then an animation with a single
frame will be created.
filename
- The name of the image file.
PixbufAnimation
public PixbufAnimation(Handle handle)
Create a new pixbuf from a handle to a native resource. For
internal use.
handle
- The handle to the native resoufce
gdk_pixbuf_animation_get_height
protected static final int gdk_pixbuf_animation_get_height(Handle animation)
gdk_pixbuf_animation_get_iter
protected static final Handle gdk_pixbuf_animation_get_iter(Handle animation,
long sec,
long usec)
gdk_pixbuf_animation_get_static_image
protected static final Handle gdk_pixbuf_animation_get_static_image(Handle animation)
gdk_pixbuf_animation_get_type
protected static final int gdk_pixbuf_animation_get_type()
gdk_pixbuf_animation_get_width
protected static final int gdk_pixbuf_animation_get_width(Handle animation)
gdk_pixbuf_animation_is_static_image
protected static final boolean gdk_pixbuf_animation_is_static_image(Handle animation)
gdk_pixbuf_animation_new_from_file
protected static final Handle gdk_pixbuf_animation_new_from_file(String filename,
Handle error)
getIter
public PixbufAnimationIter getIter(long startSec,
long startUsec)
Get an iterator for displaying an animation. The iterator
provides the frames that should be displayed at a given time.
The start time marks the beginning of animation playback. After
creating an iterator, you should immediately display the pixbuf
returned by the getPixbuf() method of PixbufAnimationIter. Then,
you should install a timeout by some mechanism to ensure that
you'll update the image after the delay time. Each time the
image is updated, you should reinstall the timeout with the new,
possibly-changed delay time.
startSec
- startUsec
-
getStaticImage
public Pixbuf getStaticImage()
If an animation is really just a plain image (has only one frame), this
method returns that image. If the animation is an animation, this method
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 method will return NULL.
height
public int height()
Return the height of the bounding box of a pixbuf animation.
- The height
isStaticImage
public boolean isStaticImage()
If this animation was loaded from a that turns out to be a plain
unaminated image then this method will return true.
width
public int width()
Return the width of the bounding box of a pixbuf animation.
- The width