Package org.gnome.gdkpixbuf

Class PixbufLoader.Builder<B extends PixbufLoader.Builder<B>>

java.lang.Object

io.github.jwharm.javagi.gobject.Builder<B>

org.gnome.gobject.GObject.Builder<B>

org.gnome.gdkpixbuf.PixbufLoader.Builder<B>

Type Parameters:

B - the type of the Builder that is returned

All Implemented Interfaces:

BuilderInterface

Enclosing class:

PixbufLoader

public static class PixbufLoader.Builder<B extends PixbufLoader.Builder<B>>
extends GObject.Builder<B>

Inner class implementing a builder pattern to construct a GObject with properties.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Builder()	Default constructor for a Builder object.

Method Summary

Modifier and Type	Method	Description
PixbufLoader	build()	Finish building the PixbufLoader object.
B	onAreaPrepared(PixbufLoader.AreaPreparedCallback handler)	This signal is emitted when the pixbuf loader has allocated the pixbuf in the desired size.
B	onAreaUpdated(PixbufLoader.AreaUpdatedCallback handler)	This signal is emitted when a significant area of the image being loaded has been updated.
B	onClosed(PixbufLoader.ClosedCallback handler)	This signal is emitted when gdk_pixbuf_loader_close() is called.
B	onSizePrepared(PixbufLoader.SizePreparedCallback handler)	This signal is emitted when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create.

Methods inherited from class org.gnome.gobject.GObject.Builder

onNotify

Methods inherited from class io.github.jwharm.javagi.gobject.Builder

addBuilderProperty, connect, connect, connectSignals, getArena, getNames, getValues

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Builder

protected Builder()

Default constructor for a Builder object.

Method Details

build

public PixbufLoader build()

Finish building the PixbufLoader object. This will call GObject.withProperties(org.gnome.glib.Type, java.lang.String[], org.gnome.gobject.Value[]) to create a new GObject instance, which is then cast to PixbufLoader.

Overrides:

build in class GObject.Builder<B extends PixbufLoader.Builder<B>>

Returns:

a new instance of PixbufLoader with the properties that were set in the Builder object.

onAreaPrepared

public B onAreaPrepared(PixbufLoader.AreaPreparedCallback handler)

This signal is emitted when the pixbuf loader has allocated the pixbuf in the desired size.

After this signal is emitted, applications can call gdk_pixbuf_loader_get_pixbuf() to fetch the partially-loaded pixbuf.

Parameters:

handler - the signal handler

Returns:

the Builder instance is returned, to allow method chaining

See Also:

• PixbufLoader.AreaPreparedCallback.run()

onAreaUpdated

public B onAreaUpdated(PixbufLoader.AreaUpdatedCallback handler)

This signal is emitted when a significant area of the image being loaded has been updated.

Normally it means that a complete scanline has been read in, but it could be a different area as well.

Applications can use this signal to know when to repaint areas of an image that is being loaded.

Parameters:

handler - the signal handler

Returns:

the Builder instance is returned, to allow method chaining

See Also:

• PixbufLoader.AreaUpdatedCallback.run(int, int, int, int)

onClosed

public B onClosed(PixbufLoader.ClosedCallback handler)

This signal is emitted when gdk_pixbuf_loader_close() is called.

It can be used by different parts of an application to receive notification when an image loader is closed by the code that drives it.

Parameters:

handler - the signal handler

Returns:

the Builder instance is returned, to allow method chaining

See Also:

• PixbufLoader.ClosedCallback.run()

onSizePrepared

public B onSizePrepared(PixbufLoader.SizePreparedCallback handler)

This signal is emitted when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create.

Applications can call gdk_pixbuf_loader_set_size() in response to this signal to set the desired size to which the image should be scaled.

Parameters:

handler - the signal handler

Returns:

the Builder instance is returned, to allow method chaining

See Also:

• PixbufLoader.SizePreparedCallback.run(int, int)