gdk_pixbuf

Struct PixbufAnimation

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pub struct PixbufAnimation { /* private fields */ }
Expand description

An opaque object representing an animation.

The GdkPixBuf library provides a simple mechanism to load and represent animations. An animation is conceptually a series of frames to be displayed over time.

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 Pixbuf what should be displayed at a given point in time.

§Implements

PixbufAnimationExt, PixbufAnimationExtManual

GLib type: GObject with reference counted clone semantics.

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impl PixbufAnimation

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pub const NONE: Option<&'static PixbufAnimation> = None

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pub fn from_file(filename: impl AsRef<Path>) -> Result<PixbufAnimation, Error>

Creates a new animation by loading it from a file.

The file format is detected automatically.

If the file’s format does not support multi-frame images, then an animation with a single frame will be created.

Possible errors are in the GDK_PIXBUF_ERROR and G_FILE_ERROR domains.

§filename

Name of file to load, in the GLib file name encoding

§Returns

A newly-created animation

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pub fn from_resource(resource_path: &str) -> Result<PixbufAnimation, Error>

Creates a new pixbuf animation by loading an image from an resource.

The file format is detected automatically. If NULL is returned, then @error will be set.

§resource_path

the path of the resource file

§Returns

A newly-created animation

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pub fn from_stream( stream: &impl IsA<InputStream>, cancellable: Option<&impl IsA<Cancellable>>, ) -> Result<PixbufAnimation, Error>

Creates a new animation by loading it from an input stream.

The file format is detected automatically.

If NULL is returned, then @error will be set.

The @cancellable can be used to abort the operation from another thread. If the operation was cancelled, the error G_IO_ERROR_CANCELLED will be returned. Other possible errors are in the GDK_PIXBUF_ERROR and G_IO_ERROR domains.

The stream is not closed.

§stream

a GInputStream to load the pixbuf from

§cancellable

optional GCancellable object

§Returns

A newly-created animation

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pub fn from_stream_async<P: FnOnce(Result<PixbufAnimation, Error>) + 'static>( stream: &impl IsA<InputStream>, cancellable: Option<&impl IsA<Cancellable>>, callback: P, )

Creates a new animation by asynchronously loading an image from an input stream.

For more details see gdk_pixbuf_new_from_stream(), which is the synchronous version of this function.

When the operation is finished, callback will be called in the main thread. You can then call gdk_pixbuf_animation_new_from_stream_finish() to get the result of the operation.

§stream

a #GInputStream from which to load the animation

§cancellable

optional #GCancellable object

§callback

a GAsyncReadyCallback to call when the pixbuf is loaded

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pub fn from_stream_future( stream: &(impl IsA<InputStream> + Clone + 'static), ) -> Pin<Box_<dyn Future<Output = Result<PixbufAnimation, Error>> + 'static>>

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impl Clone for PixbufAnimation

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fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PixbufAnimation

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl HasParamSpec for PixbufAnimation

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type ParamSpec = ParamSpecObject

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type SetValue = PixbufAnimation

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, PixbufAnimation>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for PixbufAnimation

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fn hash<H>(&self, state: &mut H)
where H: Hasher,

Hashes the memory address of this object.

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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T: PixbufAnimationImpl> IsSubclassable<T> for PixbufAnimation

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fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization. Read more
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fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization. Read more
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impl Ord for PixbufAnimation

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fn cmp(&self, other: &Self) -> Ordering

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for PixbufAnimation

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impl<OT: ObjectType> PartialEq<OT> for PixbufAnimation

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fn eq(&self, other: &OT) -> bool

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for PixbufAnimation

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for PixbufAnimation

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for PixbufAnimation

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impl IsA<PixbufAnimation> for PixbufNonAnim

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impl IsA<PixbufAnimation> for PixbufSimpleAnim

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Disconnect a previously connected signal handler.
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Notify that the given property has changed its value. Read more
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Downgrade this object to a weak reference.
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fn ref_count(&self) -> u32

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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<O> PixbufAnimationExt for O
where O: IsA<PixbufAnimation>,

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fn height(&self) -> i32

Queries the height of the bounding box of a pixbuf animation. Read more
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fn static_image(&self) -> Option<Pixbuf>

Retrieves a static image for the animation. Read more
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fn width(&self) -> i32

Queries the width of the bounding box of a pixbuf animation. Read more
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fn is_static_image(&self) -> bool

Checks whether the animation is a static image. Read more
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impl<O> PixbufAnimationExtManual for O
where O: IsA<PixbufAnimation>,

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fn iter(&self, start_time: Option<SystemTime>) -> PixbufAnimationIter

Get an iterator for displaying an animation. Read more
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impl<T> Property for T
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type Value = T

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impl<T> PropertyGet for T
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type Value = T

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fn ensure_type()

Ensures that the type has been registered with the type system.
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The resulting type after obtaining ownership.
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type Error = Infallible

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