Struct gtk4::CellRenderer

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pub struct CellRenderer { /* private fields */ }
👎Deprecated: Since 4.10
Expand description

List views use widgets for displaying their contents An object for rendering a single cell

The CellRenderer is a base class of a set of objects used for rendering a cell to a cairo::Context. These objects are used primarily by the TreeView widget, though they aren’t tied to them in any specific way. It is worth noting that CellRenderer is not a Widget and cannot be treated as such.

The primary use of a CellRenderer is for drawing a certain graphical elements on a cairo::Context. Typically, one cell renderer is used to draw many cells on the screen. To this extent, it isn’t expected that a CellRenderer keep any permanent state around. Instead, any state is set just prior to use using GObjects property system. Then, the cell is measured using gtk_cell_renderer_get_preferred_size(). Finally, the cell is rendered in the correct location using gtk_cell_renderer_snapshot().

There are a number of rules that must be followed when writing a new CellRenderer. First and foremost, it’s important that a certain set of properties will always yield a cell renderer of the same size, barring a style change. The CellRenderer also has a number of generic properties that are expected to be honored by all children.

Beyond merely rendering a cell, cell renderers can optionally provide active user interface elements. A cell renderer can be “activatable” like CellRendererToggle, which toggles when it gets activated by a mouse click, or it can be “editable” like CellRendererText, which allows the user to edit the text using a widget implementing the CellEditable interface, e.g. Entry. To make a cell renderer activatable or editable, you have to implement the CellRendererClass.activate or CellRendererClass.start_editing virtual functions, respectively.

Many properties of CellRenderer and its subclasses have a corresponding “set” property, e.g. “cell-background-set” corresponds to “cell-background”. These “set” properties reflect whether a property has been set or not. You should not set them independently.

This is an Abstract Base Class, you cannot instantiate it.

§Properties

§cell-background

Writeable

§cell-background-rgba

Cell background as a gdk::RGBA

Readable | Writeable

§cell-background-set

Readable | Writeable

§editing

Readable

§height

Readable | Writeable

§is-expanded

Readable | Writeable

§is-expander

Readable | Writeable

§mode

Readable | Writeable

§sensitive

Readable | Writeable

§visible

Readable | Writeable

§width

Readable | Writeable

§xalign

Readable | Writeable

§xpad

Readable | Writeable

§yalign

Readable | Writeable

§ypad

Readable | Writeable

§Signals

§editing-canceled

This signal gets emitted when the user cancels the process of editing a cell. For example, an editable cell renderer could be written to cancel editing when the user presses Escape.

See also: gtk_cell_renderer_stop_editing().

§editing-started

This signal gets emitted when a cell starts to be edited. The intended use of this signal is to do special setup on @editable, e.g. adding a EntryCompletion or setting up additional columns in a ComboBox.

See gtk_cell_editable_start_editing() for information on the lifecycle of the @editable and a way to do setup that doesn’t depend on the @renderer.

Note that GTK doesn’t guarantee that cell renderers will continue to use the same kind of widget for editing in future releases, therefore you should check the type of @editable before doing any specific setup, as in the following example:

⚠️ The following code is in C ⚠️

static void
text_editing_started (GtkCellRenderer *cell,
                      GtkCellEditable *editable,
                      const char      *path,
                      gpointer         data)
{
  if (GTK_IS_ENTRY (editable))
    {
      GtkEntry *entry = GTK_ENTRY (editable);

      // ... create a GtkEntryCompletion

      gtk_entry_set_completion (entry, completion);
    }
}

§Implements

CellRendererExt, [trait@glib::ObjectExt], [CellRendererExtManual][trait@crate::prelude::CellRendererExtManual]

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impl CellRenderer

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

👎Deprecated: Since 4.10

Trait Implementations§

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impl Clone for CellRenderer

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fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

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

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

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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 CellRenderer

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type ParamSpec = ParamSpecObject

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type SetValue = CellRenderer

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

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for CellRenderer

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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: CellRendererImpl> IsSubclassable<T> for CellRenderer

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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 CellRenderer

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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 + PartialOrd,

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

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

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method 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 CellRenderer

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method 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

This method 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

This method 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

This method 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 CellRenderer

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for CellRenderer

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impl IsA<CellRenderer> for CellRendererAccel

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impl IsA<CellRenderer> for CellRendererCombo

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impl IsA<CellRenderer> for CellRendererPixbuf

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impl IsA<CellRenderer> for CellRendererProgress

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impl IsA<CellRenderer> for CellRendererSpin

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impl IsA<CellRenderer> for CellRendererSpinner

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impl IsA<CellRenderer> for CellRendererText

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impl IsA<CellRenderer> for CellRendererToggle

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Cast for T
where T: ObjectType,

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fn upcast<T>(self) -> T
where T: ObjectType, Self: IsA<T>,

Upcasts an object to a superclass or interface T. Read more
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fn upcast_ref<T>(&self) -> &T
where T: ObjectType, Self: IsA<T>,

Upcasts an object to a reference of its superclass or interface T. Read more
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fn downcast<T>(self) -> Result<T, Self>
where T: ObjectType, Self: MayDowncastTo<T>,

Tries to downcast to a subclass or interface implementor T. Read more
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fn downcast_ref<T>(&self) -> Option<&T>
where T: ObjectType, Self: MayDowncastTo<T>,

Tries to downcast to a reference of its subclass or interface implementor T. Read more
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fn dynamic_cast<T>(self) -> Result<T, Self>
where T: ObjectType,

Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while upcast will do many checks at compile-time already. downcast will perform the same checks at runtime as dynamic_cast, but will also ensure some amount of compile-time safety. Read more
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fn dynamic_cast_ref<T>(&self) -> Option<&T>
where T: ObjectType,

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more
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unsafe fn unsafe_cast<T>(self) -> T
where T: ObjectType,

Casts to T unconditionally. Read more
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unsafe fn unsafe_cast_ref<T>(&self) -> &T
where T: ObjectType,

Casts to &T unconditionally. Read more
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impl<O> CellRendererExt for O
where O: IsA<CellRenderer>,

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fn activate( &self, event: impl AsRef<Event>, widget: &impl IsA<Widget>, path: &str, background_area: &Rectangle, cell_area: &Rectangle, flags: CellRendererState ) -> bool

👎Deprecated: Since 4.10
Passes an activate event to the cell renderer for possible processing. Some cell renderers may use events; for example, CellRendererToggle toggles when it gets a mouse click. Read more
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fn aligned_area( &self, widget: &impl IsA<Widget>, flags: CellRendererState, cell_area: &Rectangle ) -> Rectangle

👎Deprecated: Since 4.10
Gets the aligned area used by @self inside @cell_area. Used for finding the appropriate edit and focus rectangle. Read more
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fn alignment(&self) -> (f32, f32)

👎Deprecated: Since 4.10
Fills in @xalign and @yalign with the appropriate values of @self. Read more
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fn fixed_size(&self) -> (i32, i32)

👎Deprecated: Since 4.10
Fills in @width and @height with the appropriate size of @self. Read more
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fn is_expanded(&self) -> bool

👎Deprecated: Since 4.10
Checks whether the given CellRenderer is expanded. Read more
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fn is_expander(&self) -> bool

👎Deprecated: Since 4.10
Checks whether the given CellRenderer is an expander. Read more
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fn padding(&self) -> (i32, i32)

👎Deprecated: Since 4.10
Fills in @xpad and @ypad with the appropriate values of @self. Read more
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fn preferred_height(&self, widget: &impl IsA<Widget>) -> (i32, i32)

👎Deprecated: Since 4.10
Retrieves a renderer’s natural size when rendered to @widget. Read more
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fn preferred_height_for_width( &self, widget: &impl IsA<Widget>, width: i32 ) -> (i32, i32)

👎Deprecated: Since 4.10
Retrieves a cell renderers’s minimum and natural height if it were rendered to @widget with the specified @width. Read more
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fn preferred_size( &self, widget: &impl IsA<Widget> ) -> (Requisition, Requisition)

👎Deprecated: Since 4.10
Retrieves the minimum and natural size of a cell taking into account the widget’s preference for height-for-width management. Read more
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fn preferred_width(&self, widget: &impl IsA<Widget>) -> (i32, i32)

👎Deprecated: Since 4.10
Retrieves a renderer’s natural size when rendered to @widget. Read more
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fn preferred_width_for_height( &self, widget: &impl IsA<Widget>, height: i32 ) -> (i32, i32)

👎Deprecated: Since 4.10
Retrieves a cell renderers’s minimum and natural width if it were rendered to @widget with the specified @height. Read more
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fn request_mode(&self) -> SizeRequestMode

👎Deprecated: Since 4.10
Gets whether the cell renderer prefers a height-for-width layout or a width-for-height layout. Read more
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fn is_sensitive(&self) -> bool

👎Deprecated: Since 4.10
Returns the cell renderer’s sensitivity. Read more
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fn state( &self, widget: Option<&impl IsA<Widget>>, cell_state: CellRendererState ) -> StateFlags

👎Deprecated: Since 4.10
Translates the cell renderer state to StateFlags, based on the cell renderer and widget sensitivity, and the given CellRendererState. Read more
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fn is_visible(&self) -> bool

👎Deprecated: Since 4.10
Returns the cell renderer’s visibility. Read more
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fn is_activatable(&self) -> bool

👎Deprecated: Since 4.10
Checks whether the cell renderer can do something when activated. Read more
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fn set_alignment(&self, xalign: f32, yalign: f32)

👎Deprecated: Since 4.10
Sets the renderer’s alignment within its available space. Read more
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fn set_fixed_size(&self, width: i32, height: i32)

👎Deprecated: Since 4.10
Sets the renderer size to be explicit, independent of the properties set. Read more
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fn set_is_expanded(&self, is_expanded: bool)

👎Deprecated: Since 4.10
Sets whether the given CellRenderer is expanded. Read more
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fn set_is_expander(&self, is_expander: bool)

👎Deprecated: Since 4.10
Sets whether the given CellRenderer is an expander. Read more
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fn set_padding(&self, xpad: i32, ypad: i32)

👎Deprecated: Since 4.10
Sets the renderer’s padding. Read more
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fn set_sensitive(&self, sensitive: bool)

👎Deprecated: Since 4.10
Sets the cell renderer’s sensitivity. Read more
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fn set_visible(&self, visible: bool)

👎Deprecated: Since 4.10
Sets the cell renderer’s visibility. Read more
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fn snapshot( &self, snapshot: &impl IsA<Snapshot>, widget: &impl IsA<Widget>, background_area: &Rectangle, cell_area: &Rectangle, flags: CellRendererState )

👎Deprecated: Since 4.10
Invokes the virtual render function of the CellRenderer. The three passed-in rectangles are areas in @cr. Most renderers will draw within @cell_area; the xalign, yalign, xpad, and ypad fields of the CellRenderer should be honored with respect to @cell_area. @background_area includes the blank space around the cell, and also the area containing the tree expander; so the @background_area rectangles for all cells tile to cover the entire @window. Read more
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fn start_editing( &self, event: Option<impl AsRef<Event>>, widget: &impl IsA<Widget>, path: &str, background_area: &Rectangle, cell_area: &Rectangle, flags: CellRendererState ) -> Option<CellEditable>

👎Deprecated: Since 4.10
Starts editing the contents of this @self, through a new CellEditable widget created by the CellRendererClass.start_editing virtual function. Read more
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fn stop_editing(&self, canceled: bool)

👎Deprecated: Since 4.10
Informs the cell renderer that the editing is stopped. If @canceled is true, the cell renderer will emit the CellRenderer::editing-canceled signal. Read more
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fn set_cell_background(&self, cell_background: Option<&str>)

👎Deprecated: Since 4.10
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fn cell_background_rgba(&self) -> Option<RGBA>

👎Deprecated: Since 4.10
Cell background as a gdk::RGBA
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fn set_cell_background_rgba(&self, cell_background_rgba: Option<&RGBA>)

👎Deprecated: Since 4.10
Cell background as a gdk::RGBA
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fn is_cell_background_set(&self) -> bool

👎Deprecated: Since 4.10
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fn is_editing(&self) -> bool

👎Deprecated: Since 4.10
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fn height(&self) -> i32

👎Deprecated: Since 4.10
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fn set_height(&self, height: i32)

👎Deprecated: Since 4.10
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fn mode(&self) -> CellRendererMode

👎Deprecated: Since 4.10
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fn set_mode(&self, mode: CellRendererMode)

👎Deprecated: Since 4.10
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fn width(&self) -> i32

👎Deprecated: Since 4.10
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fn set_width(&self, width: i32)

👎Deprecated: Since 4.10
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fn xalign(&self) -> f32

👎Deprecated: Since 4.10
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fn set_xalign(&self, xalign: f32)

👎Deprecated: Since 4.10
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fn xpad(&self) -> u32

👎Deprecated: Since 4.10
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fn set_xpad(&self, xpad: u32)

👎Deprecated: Since 4.10
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fn yalign(&self) -> f32

👎Deprecated: Since 4.10
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fn set_yalign(&self, yalign: f32)

👎Deprecated: Since 4.10
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fn ypad(&self) -> u32

👎Deprecated: Since 4.10
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fn set_ypad(&self, ypad: u32)

👎Deprecated: Since 4.10
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fn connect_editing_canceled<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
This signal gets emitted when the user cancels the process of editing a cell. For example, an editable cell renderer could be written to cancel editing when the user presses Escape. Read more
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fn connect_editing_started<F: Fn(&Self, &CellEditable, TreePath) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
This signal gets emitted when a cell starts to be edited. The intended use of this signal is to do special setup on @editable, e.g. adding a EntryCompletion or setting up additional columns in a ComboBox. Read more
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fn connect_cell_background_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_cell_background_rgba_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_cell_background_set_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_editing_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_height_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_is_expanded_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_is_expander_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_mode_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_sensitive_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_visible_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_width_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_xalign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_xpad_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_yalign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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fn connect_ypad_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *const GList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(_: *const GList, _: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GList, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *const GPtrArray, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec( _: *const GPtrArray, _: usize ) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GPtrArray, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *const GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(_: *const GSList, _: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GSList, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GPtrArray, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GPtrArray, num: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for T

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unsafe fn from_glib_none_as_vec(ptr: *const GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for T

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unsafe fn from_glib_none_as_vec(ptr: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GPtrArray) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for T

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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GSList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for T

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unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for T

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unsafe fn from_glib_none_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T>

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impl<O> GObjectPropertyExpressionExt for O
where O: IsA<Object>,

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fn property_expression(&self, property_name: &str) -> PropertyExpression

Create an expression looking up an object’s property.
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fn property_expression_weak(&self, property_name: &str) -> PropertyExpression

Create an expression looking up an object’s property with a weak reference.
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fn this_expression(property_name: &str) -> PropertyExpression

Create an expression looking up a property in the bound this object.
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoClosureReturnValue for T
where T: Into<Value>,

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impl<U> IsSubclassableExt for U

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impl<T> ObjectExt for T
where T: ObjectType,

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fn is<U>(&self) -> bool
where U: StaticType,

Returns true if the object is an instance of (can be cast to) T.
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fn type_(&self) -> Type

Returns the type of the object.
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fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more
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fn class(&self) -> &Class<T>
where T: IsClass,

Returns the class of the object.
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fn class_of<U>(&self) -> Option<&Class<U>>
where U: IsClass,

Returns the class of the object in the given type T. Read more
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fn interface<U>(&self) -> Option<InterfaceRef<'_, U>>
where U: IsInterface,

Returns the interface T of the object. Read more
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fn set_property(&self, property_name: &str, value: impl Into<Value>)

Sets the property property_name of the object to value value. Read more
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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more
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fn property<V>(&self, property_name: &str) -> V
where V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more
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fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more
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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more
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fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more
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fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.
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fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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unsafe fn set_data<QD>(&self, key: &str, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.
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fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.
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fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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fn connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_id on this object. Read more
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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_id on this object. Read more
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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more
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fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more
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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R

Emit signal by signal id. Read more
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fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>

Same as Self::emit but takes Value for the arguments.
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fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R

Emit signal by its name. Read more
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fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Option<Value>

Emit signal by its name. Read more
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fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> R

Emit signal by its name with details. Read more
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fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Option<Value>

Emit signal by its name with details. Read more
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fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> R

Emit signal by signal id with details. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerId
where F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'a, 'f, 't, O>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>
where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<T> Property for T
where T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for T
where T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> R
where F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for T
where T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TransparentType for T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for T
where T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<'a, T, C, E> FromValueOptional<'a> for T
where T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,

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impl<Super, Sub> MayDowncastTo<Sub> for Super
where Super: IsA<Super>, Sub: IsA<Super>,