Struct gtk4::WidgetPaintable
source · #[repr(transparent)]pub struct WidgetPaintable { /* private fields */ }Expand description
WidgetPaintable is a gdk::Paintable that displays the contents
of a widget.
WidgetPaintable 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, WidgetPaintable 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 WidgetPaintable everywhere a gdk::Paintable is allowed,
including using it on a Picture (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::Picture::can-shrink property is set to true or you might
end up with an infinitely growing widget.
Implements
Implementations§
source§impl WidgetPaintable
impl WidgetPaintable
sourcepub fn new(widget: Option<&impl IsA<Widget>>) -> WidgetPaintable
pub fn new(widget: Option<&impl IsA<Widget>>) -> WidgetPaintable
Creates a new widget paintable observing the given widget.
widget
a Widget
Returns
a new WidgetPaintable
sourcepub fn set_widget(&self, widget: Option<&impl IsA<Widget>>)
pub fn set_widget(&self, widget: Option<&impl IsA<Widget>>)
pub fn connect_widget_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
Trait Implementations§
source§impl Clone for WidgetPaintable
impl Clone for WidgetPaintable
source§impl Debug for WidgetPaintable
impl Debug for WidgetPaintable
source§impl Display for WidgetPaintable
impl Display for WidgetPaintable
source§impl Hash for WidgetPaintable
impl Hash for WidgetPaintable
source§impl Ord for WidgetPaintable
impl Ord for WidgetPaintable
source§impl ParentClassIs for WidgetPaintable
impl ParentClassIs for WidgetPaintable
source§impl<OT: ObjectType> PartialEq<OT> for WidgetPaintable
impl<OT: ObjectType> PartialEq<OT> for WidgetPaintable
source§impl<OT: ObjectType> PartialOrd<OT> for WidgetPaintable
impl<OT: ObjectType> PartialOrd<OT> for WidgetPaintable
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for WidgetPaintable
impl StaticType for WidgetPaintable
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for WidgetPaintable
impl IsA<Paintable> for WidgetPaintable
Auto Trait Implementations§
impl RefUnwindSafe for WidgetPaintable
impl !Send for WidgetPaintable
impl !Sync for WidgetPaintable
impl Unpin for WidgetPaintable
impl UnwindSafe for WidgetPaintable
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