Package ch.bailu.gtk.gtk

Class WidgetPaintable

java.lang.Object

ch.bailu.gtk.type.Type

ch.bailu.gtk.type.Pointer

ch.bailu.gtk.gobject.Object

ch.bailu.gtk.gtk.WidgetPaintable

All Implemented Interfaces:

PointerInterface

public class WidgetPaintable
extends Object

`GtkWidgetPaintable` is a `GdkPaintable` that displays the contents
of a widget.

`GtkWidgetPaintable` will also take care of the widget not being in a
state where it can be drawn (like when it isn't shown) and just draw
nothing or where it does not have a size (like when it is hidden) and
report no size in that case.

Of course, `GtkWidgetPaintable` allows you to monitor widgets for size
changes by emitting the [signal@Gdk.Paintable::invalidate-size] signal
whenever the size of the widget changes as well as for visual changes by
emitting the [signal@Gdk.Paintable::invalidate-contents] signal whenever
the widget changes.

You can use a `GtkWidgetPaintable` everywhere a `GdkPaintable` is allowed,
including using it on a `GtkPicture` (or one of its parents) that it was
set on itself via gtk_picture_set_paintable(). The paintable will take care
of recursion when this happens. If you do this however, ensure that the
[property@Gtk.Picture:can-shrink] property is set to %TRUE or you might
end up with an infinitely growing widget.

https://docs.gtk.org/gtk4/class.WidgetPaintable.html

Nested Class Summary

Nested classes/interfaces inherited from class ch.bailu.gtk.gobject.Object

Object.OnBindingTransformFunc, Object.OnDestroyNotify, Object.OnDuplicateFunc, Object.OnNotify, Object.OnToggleNotify, Object.OnWeakNotify

Field Summary

Fields inherited from class ch.bailu.gtk.gobject.Object

SIGNAL_ON_NOTIFY

Fields inherited from class ch.bailu.gtk.type.Pointer

NULL

Constructor Summary

Constructors

Constructor	Description
WidgetPaintable(Widget widget)	Creates a new widget paintable observing the given widget.
WidgetPaintable(PointerContainer pointer)

Method Summary

Modifier and Type	Method	Description
Paintable	asPaintable()	Implements interface Paintable.
static ClassHandler	getClassHandler()
static int	getInstanceSize()
static long	getParentTypeID()
static TypeSystem.TypeSize	getParentTypeSize()
static long	getTypeID()
static TypeSystem.TypeSize	getTypeSize()
Widget	getWidget()	Returns the widget that is observed or %NULL if none.
void	setWidget(Widget widget)	Sets the widget that should be observed.

Methods inherited from class ch.bailu.gtk.gobject.Object

addToggleRef, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, disconnect, disconnect, dupData, dupData, dupQdata, forceFloating, freezeNotify, get, get, getData, getData, getProperty, getProperty, getQdata, interfaceFindProperty, interfaceInstallProperty, isFloating, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, replaceData, replaceData, replaceQdata, runDispose, set, set, setData, setData, setDataFull, setDataFull, setProperty, setProperty, setQdata, setQdataFull, stealData, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref

Methods inherited from class ch.bailu.gtk.type.Pointer

asCPointer, cast, connectSignal, disconnectSignals, disconnectSignals, equals, hashCode, throwIfNull, throwNullPointerException, toString, unregisterCallbacks, unregisterCallbacks

Methods inherited from class ch.bailu.gtk.type.Type

asCPointer, asCPointer, asCPointerNotNull, asJnaPointer, asJnaPointer, asPointer, asPointer, cast, cast, throwIfNull

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ch.bailu.gtk.type.PointerInterface

asCPointerNotNull, asJnaPointer, asPointer, isNotNull, isNull

Constructor Details

WidgetPaintable

public WidgetPaintable(PointerContainer pointer)

WidgetPaintable

public WidgetPaintable(@Nullable
 Widget widget)

Creates a new widget paintable observing the given widget.

Parameters:

widget - a `GtkWidget`

Method Details

getClassHandler

public static ClassHandler getClassHandler()

getWidget

public Widget getWidget()

Returns the widget that is observed or %NULL if none.

Returns:

the observed widget.

setWidget

public void setWidget(@Nullable
 Widget widget)

Sets the widget that should be observed.

Parameters:

widget - the widget to observe

asPaintable

public Paintable asPaintable()

Implements interface Paintable. Call this to get access to interface functions.

Returns:

Paintable

getTypeID

public static long getTypeID()

getParentTypeID

public static long getParentTypeID()

getTypeSize

public static TypeSystem.TypeSize getTypeSize()

getParentTypeSize

public static TypeSystem.TypeSize getParentTypeSize()

getInstanceSize

public static int getInstanceSize()