Struct gtk4::SpinButton

source ·
pub struct SpinButton { /* private fields */ }
Expand description

A SpinButton is an ideal way to allow the user to set the value of some attribute.

An example GtkSpinButton

Rather than having to directly type a number into a Entry, SpinButton allows the user to click on one of two arrows to increment or decrement the displayed value. A value can still be typed in, with the bonus that it can be checked to ensure it is in a given range.

The main properties of a SpinButton are through an adjustment. See the Adjustment documentation for more details about an adjustment’s properties.

Note that SpinButton will by default make its entry large enough to accommodate the lower and upper bounds of the adjustment. If this is not desired, the automatic sizing can be turned off by explicitly setting width-chars to a value != -1.

§Using a GtkSpinButton to get an integer

⚠️ The following code is in c ⚠️

// Provides a function to retrieve an integer value from a GtkSpinButton
// and creates a spin button to model percentage values.

int
grab_int_value (GtkSpinButton *button,
                gpointer       user_data)
{
  return gtk_spin_button_get_value_as_int (button);
}

void
create_integer_spin_button (void)
{

  GtkWidget *window, *button;
  GtkAdjustment *adjustment;

  adjustment = gtk_adjustment_new (50.0, 0.0, 100.0, 1.0, 5.0, 0.0);

  window = gtk_window_new ();

  // creates the spinbutton, with no decimal places
  button = gtk_spin_button_new (adjustment, 1.0, 0);
  gtk_window_set_child (GTK_WINDOW (window), button);

  gtk_window_present (GTK_WINDOW (window));
}

§Using a GtkSpinButton to get a floating point value

⚠️ The following code is in c ⚠️

// Provides a function to retrieve a floating point value from a
// GtkSpinButton, and creates a high precision spin button.

float
grab_float_value (GtkSpinButton *button,
                  gpointer       user_data)
{
  return gtk_spin_button_get_value (button);
}

void
create_floating_spin_button (void)
{
  GtkWidget *window, *button;
  GtkAdjustment *adjustment;

  adjustment = gtk_adjustment_new (2.500, 0.0, 5.0, 0.001, 0.1, 0.0);

  window = gtk_window_new ();

  // creates the spinbutton, with three decimal places
  button = gtk_spin_button_new (adjustment, 0.001, 3);
  gtk_window_set_child (GTK_WINDOW (window), button);

  gtk_window_present (GTK_WINDOW (window));
}

§CSS nodes

spinbutton.horizontal
├── text
│    ├── undershoot.left
│    ╰── undershoot.right
├── button.down
╰── button.up
spinbutton.vertical
├── button.up
├── text
│    ├── undershoot.left
│    ╰── undershoot.right
╰── button.down

SpinButtons main CSS node has the name spinbutton. It creates subnodes for the entry and the two buttons, with these names. The button nodes have the style classes .up and .down. The Text subnodes (if present) are put below the text node. The orientation of the spin button is reflected in the .vertical or .horizontal style class on the main node.

§Accessibility

SpinButton uses the AccessibleRole::SpinButton role.

§Properties

§activates-default

Whether to activate the default widget when the spin button is activated.

See activate for what counts as activation.

Readable | Writeable

§adjustment

The adjustment that holds the value of the spin button.

Readable | Writeable

§climb-rate

The acceleration rate when you hold down a button or key.

Readable | Writeable

§digits

The number of decimal places to display.

Readable | Writeable

§numeric

Whether non-numeric characters should be ignored.

Readable | Writeable

§snap-to-ticks

Whether erroneous values are automatically changed to the spin buttons nearest step increment.

Readable | Writeable

§update-policy

Whether the spin button should update always, or only when the value is acceptable.

Readable | Writeable

§value

The current value.

Readable | Writeable

§wrap

Whether a spin button should wrap upon reaching its limits.

Readable | Writeable

Widget

§can-focus

Whether the widget or any of its descendents can accept the input focus.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

§can-target

Whether the widget can receive pointer events.

Readable | Writeable

§css-classes

A list of css classes applied to this widget.

Readable | Writeable

§css-name

The name of this widget in the CSS tree.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable | Construct Only

§cursor

The cursor used by @widget.

Readable | Writeable

§focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

This property is only relevant for widgets that can take focus.

Readable | Writeable

§focusable

Whether this widget itself will accept the input focus.

Readable | Writeable

§halign

How to distribute horizontal space if widget gets extra space.

Readable | Writeable

§has-default

Whether the widget is the default widget.

Readable

§has-focus

Whether the widget has the input focus.

Readable

§has-tooltip

Enables or disables the emission of the ::query-tooltip signal on @widget.

A value of true indicates that @widget can have a tooltip, in this case the widget will be queried using query-tooltip to determine whether it will provide a tooltip or not.

Readable | Writeable

§height-request

Override for height request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

§hexpand

Whether to expand horizontally.

Readable | Writeable

§hexpand-set

Whether to use the hexpand property.

Readable | Writeable

§layout-manager

The LayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

§margin-bottom

Margin on bottom side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

§margin-end

Margin on end of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

§margin-start

Margin on start of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

§margin-top

Margin on top side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

§name

The name of the widget.

Readable | Writeable

§opacity

The requested opacity of the widget.

Readable | Writeable

§overflow

How content outside the widget’s content area is treated.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

§parent

The parent widget of this widget.

Readable

§receives-default

Whether the widget will receive the default action when it is focused.

Readable | Writeable

§root

The Root widget of the widget tree containing this widget.

This will be None if the widget is not contained in a root widget.

Readable

§scale-factor

The scale factor of the widget.

Readable

§sensitive

Whether the widget responds to input.

Readable | Writeable

§tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

Also see Tooltip::set_markup().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

§tooltip-text

Sets the text of tooltip to be the given string.

Also see Tooltip::set_text().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

§valign

How to distribute vertical space if widget gets extra space.

Readable | Writeable

§vexpand

Whether to expand vertically.

Readable | Writeable

§vexpand-set

Whether to use the vexpand property.

Readable | Writeable

§visible

Whether the widget is visible.

Readable | Writeable

§width-request

Override for width request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

Accessible

§accessible-role

The accessible role of the given Accessible implementation.

The accessible role cannot be changed once set.

Readable | Writeable

CellEditable

§editing-canceled

Indicates whether editing on the cell has been canceled.

Readable | Writeable

Editable

§cursor-position

The current position of the insertion cursor in chars.

Readable

§editable

Whether the entry contents can be edited.

Readable | Writeable

§enable-undo

If undo/redo should be enabled for the editable.

Readable | Writeable

§max-width-chars

The desired maximum width of the entry, in characters.

Readable | Writeable

§selection-bound

The position of the opposite end of the selection from the cursor in chars.

Readable

§text

The contents of the entry.

Readable | Writeable

§width-chars

Number of characters to leave space for in the entry.

Readable | Writeable

§xalign

The horizontal alignment, from 0 (left) to 1 (right).

Reversed for RTL layouts.

Readable | Writeable

Orientable

§orientation

The orientation of the orientable.

Readable | Writeable

§Signals

§activate

Emitted when the spin button is activated.

The keybindings for this signal are all forms of the Enter key.

If the Enter key results in the value being committed to the spin button, then activation does not occur until Enter is pressed again.

Action

§change-value

Emitted when the user initiates a value change.

This is a keybinding signal.

Applications should not connect to it, but may emit it with g_signal_emit_by_name() if they need to control the cursor programmatically.

The default bindings for this signal are Up/Down and PageUp/PageDown.

Action

§input

Emitted to convert the users input into a double value.

The signal handler is expected to use EditableExt::text() to retrieve the text of the spinbutton and set @new_value to the new value.

The default conversion uses g_strtod().

§output

Emitted to tweak the formatting of the value for display.

⚠️ The following code is in c ⚠️

// show leading zeros
static gboolean
on_output (GtkSpinButton *spin,
           gpointer       data)
{
   char *text;
   int value;

   value = gtk_spin_button_get_value_as_int (spin);
   text = g_strdup_printf ("%02d", value);
   gtk_editable_set_text (GTK_EDITABLE (spin), text):
   g_free (text);

   return TRUE;
}
§value-changed

Emitted when the value is changed.

Also see the output signal.

§wrapped

Emitted right after the spinbutton wraps from its maximum to its minimum value or vice-versa.

Widget

§destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

May result in finalization of the widget if all references are released.

This signal is not suitable for saving widget state.

§direction-changed

Emitted when the text direction of a widget changes.

§hide

Emitted when @widget is hidden.

§keynav-failed

Emitted if keyboard navigation fails.

See WidgetExt::keynav_failed() for details.

§map

Emitted when @widget is going to be mapped.

A widget is mapped when the widget is visible (which is controlled with visible) and all its parents up to the toplevel widget are also visible.

The ::map signal can be used to determine whether a widget will be drawn, for instance it can resume an animation that was stopped during the emission of unmap.

§mnemonic-activate

Emitted when a widget is activated via a mnemonic.

The default handler for this signal activates @widget if @group_cycling is false, or just makes @widget grab focus if @group_cycling is true.

§move-focus

Emitted when the focus is moved.

The ::move-focus signal is a keybinding signal.

The default bindings for this signal are Tab to move forward, and Shift+Tab to move backward.

Action

§query-tooltip

Emitted when the widget’s tooltip is about to be shown.

This happens when the has-tooltip property is true and the hover timeout has expired with the cursor hovering “above” @widget; or emitted when @widget got focus in keyboard mode.

Using the given coordinates, the signal handler should determine whether a tooltip should be shown for @widget. If this is the case true should be returned, false otherwise. Note that if @keyboard_mode is true, the values of @x and @y are undefined and should not be used.

The signal handler is free to manipulate @tooltip with the therefore destined function calls.

§realize

Emitted when @widget is associated with a gdk::Surface.

This means that WidgetExt::realize() has been called or the widget has been mapped (that is, it is going to be drawn).

§show

Emitted when @widget is shown.

§state-flags-changed

Emitted when the widget state changes.

See WidgetExt::state_flags().

§unmap

Emitted when @widget is going to be unmapped.

A widget is unmapped when either it or any of its parents up to the toplevel widget have been set as hidden.

As ::unmap indicates that a widget will not be shown any longer, it can be used to, for example, stop an animation on the widget.

§unrealize

Emitted when the gdk::Surface associated with @widget is destroyed.

This means that WidgetExt::unrealize() has been called or the widget has been unmapped (that is, it is going to be hidden).

CellEditable

§editing-done

This signal is a sign for the cell renderer to update its value from the @cell_editable.

Implementations of CellEditable are responsible for emitting this signal when they are done editing, e.g. Entry emits this signal when the user presses Enter. Typical things to do in a handler for ::editing-done are to capture the edited value, disconnect the @cell_editable from signals on the CellRenderer, etc.

gtk_cell_editable_editing_done() is a convenience method for emitting GtkCellEditable::editing-done.

§remove-widget

This signal is meant to indicate that the cell is finished editing, and the @cell_editable widget is being removed and may subsequently be destroyed.

Implementations of CellEditable are responsible for emitting this signal when they are done editing. It must be emitted after the GtkCellEditable::editing-done signal, to give the cell renderer a chance to update the cell’s value before the widget is removed.

gtk_cell_editable_remove_widget() is a convenience method for emitting GtkCellEditable::remove-widget.

Editable

§changed

Emitted at the end of a single user-visible operation on the contents.

E.g., a paste operation that replaces the contents of the selection will cause only one signal emission (even though it is implemented by first deleting the selection, then inserting the new content, and may cause multiple ::notify::text signals to be emitted).

§delete-text

Emitted when text is deleted from the widget by the user.

The default handler for this signal will normally be responsible for deleting the text, so by connecting to this signal and then stopping the signal with g_signal_stop_emission(), it is possible to modify the range of deleted text, or prevent it from being deleted entirely.

The @start_pos and @end_pos parameters are interpreted as for EditableExt::delete_text().

§insert-text

Emitted when text is inserted into the widget by the user.

The default handler for this signal will normally be responsible for inserting the text, so by connecting to this signal and then stopping the signal with g_signal_stop_emission(), it is possible to modify the inserted text, or prevent it from being inserted entirely.

§Implements

WidgetExt, [trait@glib::ObjectExt], AccessibleExt, BuildableExt, ConstraintTargetExt, AccessibleRangeExt, CellEditableExt, EditableExt, OrientableExt, WidgetExtManual, AccessibleExtManual, EditableExtManual

Implementations§

source§

impl SpinButton

source

pub fn new( adjustment: Option<&impl IsA<Adjustment>>, climb_rate: f64, digits: u32 ) -> SpinButton

Creates a new SpinButton.

§adjustment

the Adjustment that this spin button should use

§climb_rate

specifies by how much the rate of change in the value will accelerate if you continue to hold down an up/down button or arrow key

§digits

the number of decimal places to display

§Returns

The new SpinButton

source

pub fn with_range(min: f64, max: f64, step: f64) -> SpinButton

Creates a new SpinButton with the given properties.

This is a convenience constructor that allows creation of a numeric SpinButton without manually creating an adjustment. The value is initially set to the minimum value and a page increment of 10 * @step is the default. The precision of the spin button is equivalent to the precision of @step.

Note that the way in which the precision is derived works best if @step is a power of ten. If the resulting precision is not suitable for your needs, use set_digits() to correct it.

§min

Minimum allowable value

§max

Maximum allowable value

§step

Increment added or subtracted by spinning the widget

§Returns

The new SpinButton

source

pub fn builder() -> SpinButtonBuilder

Creates a new builder-pattern struct instance to construct SpinButton objects.

This method returns an instance of SpinButtonBuilder which can be used to create SpinButton objects.

source

pub fn configure( &self, adjustment: Option<&impl IsA<Adjustment>>, climb_rate: f64, digits: u32 )

Changes the properties of an existing spin button.

The adjustment, climb rate, and number of decimal places are updated accordingly.

§adjustment

a Adjustment to replace the spin button’s existing adjustment, or None to leave its current adjustment unchanged

§climb_rate

the new climb rate

§digits

the number of decimal places to display in the spin button

source

pub fn activates_default(&self) -> bool

Available on crate feature v4_14 only.

Retrieves the value set by set_activates_default().

§Returns

true if the spin button will activate the default widget

source

pub fn adjustment(&self) -> Adjustment

Get the adjustment associated with a SpinButton.

§Returns

the Adjustment of @self

source

pub fn climb_rate(&self) -> f64

Returns the acceleration rate for repeated changes.

§Returns

the acceleration rate

source

pub fn digits(&self) -> u32

Fetches the precision of @self.

§Returns

the current precision

source

pub fn increments(&self) -> (f64, f64)

Gets the current step and page the increments used by @self.

See set_increments().

§Returns
§step

location to store step increment

§page

location to store page increment

source

pub fn is_numeric(&self) -> bool

Returns whether non-numeric text can be typed into the spin button.

§Returns

true if only numeric text can be entered

source

pub fn range(&self) -> (f64, f64)

Gets the range allowed for @self.

See set_range().

§Returns
§min

location to store minimum allowed value

§max

location to store maximum allowed value

source

pub fn snaps_to_ticks(&self) -> bool

Returns whether the values are corrected to the nearest step.

§Returns

true if values are snapped to the nearest step

source

pub fn update_policy(&self) -> SpinButtonUpdatePolicy

Gets the update behavior of a spin button.

See set_update_policy().

§Returns

the current update policy

source

pub fn value(&self) -> f64

Get the value in the @self.

§Returns

the value of @self

source

pub fn value_as_int(&self) -> i32

Get the value @self represented as an integer.

§Returns

the value of @self

source

pub fn wraps(&self) -> bool

Returns whether the spin button’s value wraps around to the opposite limit when the upper or lower limit of the range is exceeded.

§Returns

true if the spin button wraps around

source

pub fn set_activates_default(&self, activates_default: bool)

Available on crate feature v4_14 only.

Sets whether activating the spin button will activate the default widget for the window containing the spin button.

See activate for what counts as activation.

§activates_default

true to activate window’s default widget on activation

source

pub fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>)

Replaces the Adjustment associated with @self.

§adjustment

a Adjustment to replace the existing adjustment

source

pub fn set_climb_rate(&self, climb_rate: f64)

Sets the acceleration rate for repeated changes when you hold down a button or key.

§climb_rate

the rate of acceleration, must be >= 0

source

pub fn set_digits(&self, digits: u32)

Set the precision to be displayed by @self.

Up to 20 digit precision is allowed.

§digits

the number of digits after the decimal point to be displayed for the spin button’s value

source

pub fn set_increments(&self, step: f64, page: f64)

Sets the step and page increments for spin_button.

This affects how quickly the value changes when the spin button’s arrows are activated.

§step

increment applied for a button 1 press.

§page

increment applied for a button 2 press.

source

pub fn set_numeric(&self, numeric: bool)

Sets the flag that determines if non-numeric text can be typed into the spin button.

§numeric

flag indicating if only numeric entry is allowed

source

pub fn set_range(&self, min: f64, max: f64)

Sets the minimum and maximum allowable values for @self.

If the current value is outside this range, it will be adjusted to fit within the range, otherwise it will remain unchanged.

§min

minimum allowable value

§max

maximum allowable value

source

pub fn set_snap_to_ticks(&self, snap_to_ticks: bool)

Sets the policy as to whether values are corrected to the nearest step increment when a spin button is activated after providing an invalid value.

§snap_to_ticks

a flag indicating if invalid values should be corrected

source

pub fn set_update_policy(&self, policy: SpinButtonUpdatePolicy)

Sets the update behavior of a spin button.

This determines whether the spin button is always updated or only when a valid value is set.

§policy

a SpinButtonUpdatePolicy value

source

pub fn set_value(&self, value: f64)

Sets the value of @self.

§value

the new value

source

pub fn set_wrap(&self, wrap: bool)

Sets the flag that determines if a spin button value wraps around to the opposite limit when the upper or lower limit of the range is exceeded.

§wrap

a flag indicating if wrapping behavior is performed

source

pub fn spin(&self, direction: SpinType, increment: f64)

Increment or decrement a spin button’s value in a specified direction by a specified amount.

§direction

a SpinType indicating the direction to spin

§increment

step increment to apply in the specified direction

source

pub fn update(&self)

Manually force an update of the spin button.

source

pub fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Available on crate feature v4_14 only.

Emitted when the spin button is activated.

The keybindings for this signal are all forms of the Enter key.

If the Enter key results in the value being committed to the spin button, then activation does not occur until Enter is pressed again.

source

pub fn emit_activate(&self)

Available on crate feature v4_14 only.
source

pub fn connect_change_value<F: Fn(&Self, ScrollType) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the user initiates a value change.

This is a keybinding signal.

Applications should not connect to it, but may emit it with g_signal_emit_by_name() if they need to control the cursor programmatically.

The default bindings for this signal are Up/Down and PageUp/PageDown.

§scroll

a ScrollType to specify the speed and amount of change

source

pub fn emit_change_value(&self, scroll: ScrollType)

source

pub fn connect_output<F: Fn(&Self) -> Propagation + 'static>( &self, f: F ) -> SignalHandlerId

Emitted to tweak the formatting of the value for display.

⚠️ The following code is in c ⚠️

// show leading zeros
static gboolean
on_output (GtkSpinButton *spin,
           gpointer       data)
{
   char *text;
   int value;

   value = gtk_spin_button_get_value_as_int (spin);
   text = g_strdup_printf ("%02d", value);
   gtk_editable_set_text (GTK_EDITABLE (spin), text):
   g_free (text);

   return TRUE;
}
§Returns

true if the value has been displayed

source

pub fn connect_value_changed<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the value is changed.

Also see the output signal.

source

pub fn connect_wrapped<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted right after the spinbutton wraps from its maximum to its minimum value or vice-versa.

source

pub fn connect_activates_default_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Available on crate feature v4_14 only.
source

pub fn connect_adjustment_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_climb_rate_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_digits_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_numeric_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_snap_to_ticks_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_update_policy_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_value_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source

pub fn connect_wrap_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

source§

impl SpinButton

source

pub fn connect_input<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) -> Option<Result<f64, ()>> + 'static,

Emitted to convert the users input into a double value.

The signal handler is expected to use EditableExt::text() to retrieve the text of the spinbutton and set @new_value to the new value.

The default conversion uses g_strtod().

§Returns

true for a successful conversion, false if the input was not handled, and GTK_INPUT_ERROR if the conversion failed.

§new_value

return location for the new value

Trait Implementations§

source§

impl Clone for SpinButton

source§

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 SpinButton

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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 Default for SpinButton

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl HasParamSpec for SpinButton

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type ParamSpec = ParamSpecObject

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type SetValue = SpinButton

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

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for SpinButton

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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 Ord for SpinButton

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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
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
1.50.0 · source§

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 SpinButton

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

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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 ==.
1.0.0 · source§

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 SpinButton

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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
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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
1.0.0 · source§

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 SpinButton

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for SpinButton

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impl IsA<Accessible> for SpinButton

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impl IsA<AccessibleRange> for SpinButton

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impl IsA<Buildable> for SpinButton

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impl IsA<CellEditable> for SpinButton

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impl IsA<ConstraintTarget> for SpinButton

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impl IsA<Editable> for SpinButton

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impl IsA<Orientable> for SpinButton

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impl IsA<Widget> for SpinButton

Auto Trait Implementations§

Blanket Implementations§

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impl<O> AccessibleExt for O
where O: IsA<Accessible>,

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fn announce(&self, message: &str, priority: AccessibleAnnouncementPriority)

Available on crate feature v4_14 only.
Requests the user’s screen reader to announce the given message. Read more
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fn accessible_parent(&self) -> Option<Accessible>

Available on crate feature v4_10 only.
Retrieves the accessible parent for an accessible object. Read more
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fn accessible_role(&self) -> AccessibleRole

Retrieves the accessible role of an accessible object. Read more
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fn at_context(&self) -> ATContext

Available on crate feature v4_10 only.
Retrieves the accessible implementation for the given Accessible. Read more
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fn bounds(&self) -> Option<(i32, i32, i32, i32)>

Available on crate feature v4_10 only.
Queries the coordinates and dimensions of this accessible Read more
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fn first_accessible_child(&self) -> Option<Accessible>

Available on crate feature v4_10 only.
Retrieves the first accessible child of an accessible object. Read more
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fn next_accessible_sibling(&self) -> Option<Accessible>

Available on crate feature v4_10 only.
Retrieves the next accessible sibling of an accessible object Read more
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fn platform_state(&self, state: AccessiblePlatformState) -> bool

Available on crate feature v4_10 only.
Query a platform state, such as focus. Read more
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fn reset_property(&self, property: AccessibleProperty)

Resets the accessible @property to its default value. Read more
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fn reset_relation(&self, relation: AccessibleRelation)

Resets the accessible @relation to its default value. Read more
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fn reset_state(&self, state: AccessibleState)

Resets the accessible @state to its default value. Read more
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fn set_accessible_parent( &self, parent: Option<&impl IsA<Accessible>>, next_sibling: Option<&impl IsA<Accessible>> )

Available on crate feature v4_10 only.
Sets the parent and sibling of an accessible object. Read more
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fn update_next_accessible_sibling( &self, new_sibling: Option<&impl IsA<Accessible>> )

Available on crate feature v4_10 only.
Updates the next accessible sibling of @self. Read more
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fn set_accessible_role(&self, accessible_role: AccessibleRole)

The accessible role of the given Accessible implementation. Read more
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fn connect_accessible_role_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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impl<O> AccessibleExtManual for O
where O: IsA<Accessible>,

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fn update_property(&self, properties: &[Property<'_>])

Updates an array of accessible properties. Read more
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fn update_relation(&self, relations: &[Relation<'_>])

Updates an array of accessible relations. Read more
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fn update_state(&self, states: &[State])

Updates an array of accessible states. Read more
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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<O> BuildableExt for O
where O: IsA<Buildable>,

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fn buildable_id(&self) -> Option<GString>

Gets the ID of the @self object. 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> CellEditableExt for O
where O: IsA<CellEditable>,

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fn editing_done(&self)

👎Deprecated: Since 4.10
Emits the GtkCellEditable::editing-done signal. Read more
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fn remove_widget(&self)

👎Deprecated: Since 4.10
Emits the GtkCellEditable::remove-widget signal. Read more
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fn start_editing(&self, event: Option<impl AsRef<Event>>)

👎Deprecated: Since 4.10
Begins editing on a @self. Read more
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fn is_editing_canceled(&self) -> bool

👎Deprecated: Since 4.10
Indicates whether editing on the cell has been canceled.
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fn set_editing_canceled(&self, editing_canceled: bool)

👎Deprecated: Since 4.10
Indicates whether editing on the cell has been canceled.
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fn connect_editing_done<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
This signal is a sign for the cell renderer to update its value from the @cell_editable. Read more
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fn connect_remove_widget<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

👎Deprecated: Since 4.10
This signal is meant to indicate that the cell is finished editing, and the @cell_editable widget is being removed and may subsequently be destroyed. Read more
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fn connect_editing_canceled_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

👎Deprecated: Since 4.10
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impl<O> EditableExt for O
where O: IsA<Editable>,

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fn delegate_get_accessible_platform_state( &self, state: AccessiblePlatformState ) -> bool

Available on crate feature v4_10 only.
Retrieves the accessible platform state from the editable delegate. Read more
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fn delete_selection(&self)

Deletes the currently selected text of the editable. Read more
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fn delete_text(&self, start_pos: i32, end_pos: i32)

Deletes a sequence of characters. Read more
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fn finish_delegate(&self)

Undoes the setup done by init_delegate(). Read more
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fn alignment(&self) -> f32

Gets the alignment of the editable. Read more
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fn chars(&self, start_pos: i32, end_pos: i32) -> GString

Retrieves a sequence of characters. Read more
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fn delegate(&self) -> Option<Editable>

Gets the Editable that @self is delegating its implementation to. Read more
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fn is_editable(&self) -> bool

Retrieves whether @self is editable. Read more
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fn enables_undo(&self) -> bool

Gets if undo/redo actions are enabled for @self Read more
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fn max_width_chars(&self) -> i32

Retrieves the desired maximum width of @self, in characters. Read more
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fn position(&self) -> i32

Retrieves the current position of the cursor relative to the start of the content of the editable. Read more
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fn selection_bounds(&self) -> Option<(i32, i32)>

Retrieves the selection bound of the editable. Read more
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fn text(&self) -> GString

Retrieves the contents of @self. Read more
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fn width_chars(&self) -> i32

Gets the number of characters of space reserved for the contents of the editable. Read more
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fn init_delegate(&self)

Sets up a delegate for Editable. Read more
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fn insert_text(&self, text: &str, position: &mut i32)

Inserts @length bytes of @text into the contents of the widget, at position @position. Read more
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fn select_region(&self, start_pos: i32, end_pos: i32)

Selects a region of text. Read more
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fn set_alignment(&self, xalign: f32)

Sets the alignment for the contents of the editable. Read more
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fn set_editable(&self, is_editable: bool)

Determines if the user can edit the text in the editable widget. Read more
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fn set_enable_undo(&self, enable_undo: bool)

If enabled, changes to @self will be saved for undo/redo actions. Read more
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fn set_max_width_chars(&self, n_chars: i32)

Sets the desired maximum width in characters of @self. Read more
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fn set_position(&self, position: i32)

Sets the cursor position in the editable to the given value. Read more
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fn set_text(&self, text: &str)

Sets the text in the editable to the given value. Read more
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fn set_width_chars(&self, n_chars: i32)

Changes the size request of the editable to be about the right size for @n_chars characters. Read more
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fn cursor_position(&self) -> i32

The current position of the insertion cursor in chars.
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fn selection_bound(&self) -> i32

The position of the opposite end of the selection from the cursor in chars.
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fn xalign(&self) -> f32

The horizontal alignment, from 0 (left) to 1 (right). Read more
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fn set_xalign(&self, xalign: f32)

The horizontal alignment, from 0 (left) to 1 (right). Read more
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fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted at the end of a single user-visible operation on the contents. Read more
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fn connect_delete_text<F: Fn(&Self, i32, i32) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when text is deleted from the widget by the user. Read more
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fn connect_cursor_position_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_editable_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_enable_undo_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_max_width_chars_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_selection_bound_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_text_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_width_chars_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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

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impl<O> EditableExtManual for O
where O: IsA<Editable>,

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fn connect_insert_text<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &str, &mut i32) + 'static,

Emitted when text is inserted into the widget by the user. Read more
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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<O> OrientableExt for O
where O: IsA<Orientable>,

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fn orientation(&self) -> Orientation

Retrieves the orientation of the @self. Read more
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fn set_orientation(&self, orientation: Orientation)

Sets the orientation of the @self. Read more
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fn connect_orientation_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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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<O> WidgetExt for O
where O: IsA<Widget>,

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fn action_set_enabled(&self, action_name: &str, enabled: bool)

Enable or disable an action installed with gtk_widget_class_install_action(). Read more
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fn activate(&self) -> bool

For widgets that can be “activated” (buttons, menu items, etc.), this function activates them. Read more
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fn activate_action( &self, name: &str, args: Option<&Variant> ) -> Result<(), BoolError>

Looks up the action in the action groups associated with @self and its ancestors, and activates it. Read more
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fn activate_default(&self)

Activates the default.activate action from @self.
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fn add_controller(&self, controller: impl IsA<EventController>)

Adds @controller to @self so that it will receive events. Read more
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fn add_css_class(&self, css_class: &str)

Adds a style class to @self. Read more
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fn add_mnemonic_label(&self, label: &impl IsA<Widget>)

Adds a widget to the list of mnemonic labels for this widget. Read more
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fn allocate( &self, width: i32, height: i32, baseline: i32, transform: Option<Transform> )

This function is only used by Widget subclasses, to assign a size, position and (optionally) baseline to their child widgets. Read more
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fn child_focus(&self, direction: DirectionType) -> bool

Called by widgets as the user moves around the window using keyboard shortcuts. Read more
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fn compute_bounds(&self, target: &impl IsA<Widget>) -> Option<Rect>

Computes the bounds for @self in the coordinate space of @target. Read more
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fn compute_expand(&self, orientation: Orientation) -> bool

Computes whether a container should give this widget extra space when possible. Read more
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fn compute_point( &self, target: &impl IsA<Widget>, point: &Point ) -> Option<Point>

Translates the given @point in @self’s coordinates to coordinates relative to @target’s coordinate system. Read more
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fn compute_transform(&self, target: &impl IsA<Widget>) -> Option<Matrix>

Computes a matrix suitable to describe a transformation from @self’s coordinate system into @target’s coordinate system. Read more
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fn contains(&self, x: f64, y: f64) -> bool

Tests if the point at (@x, @y) is contained in @self. Read more
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fn create_pango_context(&self) -> Context

Creates a new pango::Context with the appropriate font map, font options, font description, and base direction for drawing text for this widget. Read more
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fn create_pango_layout(&self, text: Option<&str>) -> Layout

Creates a new pango::Layout with the appropriate font map, font description, and base direction for drawing text for this widget. Read more
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fn drag_check_threshold( &self, start_x: i32, start_y: i32, current_x: i32, current_y: i32 ) -> bool

Checks to see if a drag movement has passed the GTK drag threshold. Read more
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fn error_bell(&self)

Notifies the user about an input-related error on this widget. Read more
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fn allocated_baseline(&self) -> i32

👎Deprecated: Since 4.12
Returns the baseline that has currently been allocated to @self. Read more
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fn allocated_height(&self) -> i32

👎Deprecated: Since 4.12
Returns the height that has currently been allocated to @self. Read more
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fn allocated_width(&self) -> i32

👎Deprecated: Since 4.12
Returns the width that has currently been allocated to @self. Read more
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fn allocation(&self) -> Allocation

👎Deprecated: Since 4.12
Retrieves the widget’s allocation. Read more
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fn ancestor(&self, widget_type: Type) -> Option<Widget>

Gets the first ancestor of @self with type @widget_type. Read more
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fn baseline(&self) -> i32

Available on crate feature v4_12 only.
Returns the baseline that has currently been allocated to @self. Read more
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fn can_focus(&self) -> bool

Determines whether the input focus can enter @self or any of its children. Read more
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fn can_target(&self) -> bool

Queries whether @self can be the target of pointer events. Read more
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fn is_child_visible(&self) -> bool

Gets the value set with gtk_widget_set_child_visible(). Read more
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fn clipboard(&self) -> Clipboard

Gets the clipboard object for @self. Read more
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fn color(&self) -> RGBA

Available on crate feature v4_10 only.
Gets the current foreground color for the widget’s CSS style. Read more
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fn css_classes(&self) -> Vec<GString>

Returns the list of style classes applied to @self. Read more
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fn css_name(&self) -> GString

Returns the CSS name that is used for @self. Read more
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fn cursor(&self) -> Option<Cursor>

Queries the cursor set on @self. Read more
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fn direction(&self) -> TextDirection

Gets the reading direction for a particular widget. Read more
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fn display(&self) -> Display

Get the gdk::Display for the toplevel window associated with this widget. Read more
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fn first_child(&self) -> Option<Widget>

Returns the widget’s first child. Read more
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fn focus_child(&self) -> Option<Widget>

Returns the current focus child of @self. Read more
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fn gets_focus_on_click(&self) -> bool

Returns whether the widget should grab focus when it is clicked with the mouse. Read more
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fn is_focusable(&self) -> bool

Determines whether @self can own the input focus. Read more
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fn font_map(&self) -> Option<FontMap>

Gets the font map of @self. Read more
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fn font_options(&self) -> Option<FontOptions>

👎Deprecated: Since 4.16
Returns the cairo::FontOptions of widget. Read more
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fn frame_clock(&self) -> Option<FrameClock>

Obtains the frame clock for a widget. Read more
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fn halign(&self) -> Align

Gets the horizontal alignment of @self. Read more
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fn has_tooltip(&self) -> bool

Returns the current value of the has-tooltip property. Read more
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fn height(&self) -> i32

Returns the content height of the widget. Read more
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fn hexpands(&self) -> bool

Gets whether the widget would like any available extra horizontal space. Read more
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fn is_hexpand_set(&self) -> bool

Gets whether gtk_widget_set_hexpand() has been used to explicitly set the expand flag on this widget. Read more
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fn last_child(&self) -> Option<Widget>

Returns the widget’s last child. Read more
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fn layout_manager(&self) -> Option<LayoutManager>

Retrieves the layout manager used by @self. Read more
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fn is_mapped(&self) -> bool

Whether the widget is mapped. Read more
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fn margin_bottom(&self) -> i32

Gets the bottom margin of @self. Read more
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fn margin_end(&self) -> i32

Gets the end margin of @self. Read more
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fn margin_start(&self) -> i32

Gets the start margin of @self. Read more
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fn margin_top(&self) -> i32

Gets the top margin of @self. Read more
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fn widget_name(&self) -> GString

Retrieves the name of a widget. Read more
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fn native(&self) -> Option<Native>

Returns the nearest Native ancestor of @self. Read more
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fn next_sibling(&self) -> Option<Widget>

Returns the widget’s next sibling. Read more
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fn opacity(&self) -> f64

#Fetches the requested opacity for this widget. Read more
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fn overflow(&self) -> Overflow

Returns the widget’s overflow value. Read more
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fn pango_context(&self) -> Context

Gets a pango::Context with the appropriate font map, font description, and base direction for this widget. Read more
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fn parent(&self) -> Option<Widget>

Returns the parent widget of @self. Read more
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fn preferred_size(&self) -> (Requisition, Requisition)

Retrieves the minimum and natural size of a widget, taking into account the widget’s preference for height-for-width management. Read more
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fn prev_sibling(&self) -> Option<Widget>

Returns the widget’s previous sibling. Read more
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fn primary_clipboard(&self) -> Clipboard

Gets the primary clipboard of @self. Read more
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fn is_realized(&self) -> bool

Determines whether @self is realized. Read more
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fn receives_default(&self) -> bool

Determines whether @self is always treated as the default widget within its toplevel when it has the focus, even if another widget is the default. Read more
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fn request_mode(&self) -> SizeRequestMode

Gets whether the widget prefers a height-for-width layout or a width-for-height layout. Read more
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fn root(&self) -> Option<Root>

Returns the Root widget of @self. Read more
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fn scale_factor(&self) -> i32

Retrieves the internal scale factor that maps from window coordinates to the actual device pixels. Read more
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fn get_sensitive(&self) -> bool

Returns the widget’s sensitivity. Read more
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fn settings(&self) -> Settings

Gets the settings object holding the settings used for this widget. Read more
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fn size(&self, orientation: Orientation) -> i32

Returns the content width or height of the widget. Read more
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fn size_request(&self) -> (i32, i32)

Gets the size request that was explicitly set for the widget using gtk_widget_set_size_request(). Read more
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fn state_flags(&self) -> StateFlags

Returns the widget state as a flag set. Read more
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fn style_context(&self) -> StyleContext

👎Deprecated: Since 4.10
Returns the style context associated to @self. Read more
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fn tooltip_markup(&self) -> Option<GString>

Gets the contents of the tooltip for @self. Read more
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fn tooltip_text(&self) -> Option<GString>

Gets the contents of the tooltip for @self. Read more
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fn valign(&self) -> Align

Gets the vertical alignment of @self. Read more
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fn vexpands(&self) -> bool

Gets whether the widget would like any available extra vertical space. Read more
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fn is_vexpand_set(&self) -> bool

Gets whether gtk_widget_set_vexpand() has been used to explicitly set the expand flag on this widget. Read more
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fn get_visible(&self) -> bool

Determines whether the widget is visible. Read more
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fn width(&self) -> i32

Returns the content width of the widget. Read more
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fn grab_focus(&self) -> bool

Causes @self to have the keyboard focus for the Window it’s inside. Read more
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fn has_css_class(&self, css_class: &str) -> bool

Returns whether @css_class is currently applied to @self. Read more
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fn has_default(&self) -> bool

Determines whether @self is the current default widget within its toplevel. Read more
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fn has_focus(&self) -> bool

Determines if the widget has the global input focus. Read more
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fn has_visible_focus(&self) -> bool

Determines if the widget should show a visible indication that it has the global input focus. Read more
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fn hide(&self)

👎Deprecated: Since 4.10
Reverses the effects of gtk_widget_show(). Read more
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fn in_destruction(&self) -> bool

Returns whether the widget is currently being destroyed. Read more
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fn insert_action_group(&self, name: &str, group: Option<&impl IsA<ActionGroup>>)

Inserts @group into @self. Read more
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fn insert_after( &self, parent: &impl IsA<Widget>, previous_sibling: Option<&impl IsA<Widget>> )

Inserts @self into the child widget list of @parent. Read more
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fn insert_before( &self, parent: &impl IsA<Widget>, next_sibling: Option<&impl IsA<Widget>> )

Inserts @self into the child widget list of @parent. Read more
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fn is_ancestor(&self, ancestor: &impl IsA<Widget>) -> bool

Determines whether @self is somewhere inside @ancestor, possibly with intermediate containers. Read more
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fn is_drawable(&self) -> bool

Determines whether @self can be drawn to. Read more
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fn is_focus(&self) -> bool

Determines if the widget is the focus widget within its toplevel. Read more
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fn is_sensitive(&self) -> bool

Returns the widget’s effective sensitivity. Read more
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fn is_visible(&self) -> bool

Determines whether the widget and all its parents are marked as visible. Read more
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fn keynav_failed(&self, direction: DirectionType) -> bool

Emits the ::keynav-failed signal on the widget. Read more
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fn list_mnemonic_labels(&self) -> Vec<Widget>

Returns the widgets for which this widget is the target of a mnemonic. Read more
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fn map(&self)

Causes a widget to be mapped if it isn’t already. Read more
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fn measure( &self, orientation: Orientation, for_size: i32 ) -> (i32, i32, i32, i32)

Measures @self in the orientation @orientation and for the given @for_size. Read more
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fn mnemonic_activate(&self, group_cycling: bool) -> bool

Emits the ::mnemonic-activate signal. Read more
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fn observe_children(&self) -> ListModel

Returns a GListModel to track the children of @self. Read more
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fn observe_controllers(&self) -> ListModel

Returns a GListModel to track the EventControllers of @self. Read more
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fn pick(&self, x: f64, y: f64, flags: PickFlags) -> Option<Widget>

Finds the descendant of @self closest to the point (@x, @y). Read more
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fn queue_allocate(&self)

Flags the widget for a rerun of the WidgetImpl::size_allocate() function. Read more
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fn queue_draw(&self)

Schedules this widget to be redrawn in the paint phase of the current or the next frame. Read more
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fn queue_resize(&self)

Flags a widget to have its size renegotiated. Read more
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fn realize(&self)

Creates the GDK resources associated with a widget. Read more
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fn remove_controller(&self, controller: &impl IsA<EventController>)

Removes @controller from @self, so that it doesn’t process events anymore. Read more
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fn remove_css_class(&self, css_class: &str)

Removes a style from @self. Read more
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fn remove_mnemonic_label(&self, label: &impl IsA<Widget>)

Removes a widget from the list of mnemonic labels for this widget. Read more
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fn set_can_focus(&self, can_focus: bool)

Specifies whether the input focus can enter the widget or any of its children. Read more
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fn set_can_target(&self, can_target: bool)

Sets whether @self can be the target of pointer events. Read more
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fn set_child_visible(&self, child_visible: bool)

Sets whether @self should be mapped along with its parent. Read more
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fn set_css_classes(&self, classes: &[&str])

Clear all style classes applied to @self and replace them with @classes. Read more
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fn set_cursor(&self, cursor: Option<&Cursor>)

Sets the cursor to be shown when pointer devices point towards @self. Read more
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fn set_cursor_from_name(&self, name: Option<&str>)

Sets a named cursor to be shown when pointer devices point towards @self. Read more
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fn set_direction(&self, dir: TextDirection)

Sets the reading direction on a particular widget. Read more
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fn set_focus_child(&self, child: Option<&impl IsA<Widget>>)

Set @child as the current focus child of @self. Read more
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fn set_focus_on_click(&self, focus_on_click: bool)

Sets whether the widget should grab focus when it is clicked with the mouse. Read more
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fn set_focusable(&self, focusable: bool)

Specifies whether @self can own the input focus. Read more
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fn set_font_map(&self, font_map: Option<&impl IsA<FontMap>>)

Sets the font map to use for Pango rendering. Read more
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fn set_font_options(&self, options: Option<&FontOptions>)

👎Deprecated: Since 4.16
Sets the cairo::FontOptions used for Pango rendering in this widget. Read more
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fn set_halign(&self, align: Align)

Sets the horizontal alignment of @self. Read more
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fn set_has_tooltip(&self, has_tooltip: bool)

Sets the has-tooltip property on @self to @has_tooltip. Read more
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fn set_hexpand(&self, expand: bool)

Sets whether the widget would like any available extra horizontal space. Read more
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fn set_hexpand_set(&self, set: bool)

Sets whether the hexpand flag will be used. Read more
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fn set_layout_manager(&self, layout_manager: Option<impl IsA<LayoutManager>>)

Sets the layout manager delegate instance that provides an implementation for measuring and allocating the children of @self. Read more
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fn set_margin_bottom(&self, margin: i32)

Sets the bottom margin of @self. Read more
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fn set_margin_end(&self, margin: i32)

Sets the end margin of @self. Read more
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fn set_margin_start(&self, margin: i32)

Sets the start margin of @self. Read more
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fn set_margin_top(&self, margin: i32)

Sets the top margin of @self. Read more
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fn set_widget_name(&self, name: &str)

Sets a widgets name. Read more
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fn set_opacity(&self, opacity: f64)

Request the @self to be rendered partially transparent. Read more
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fn set_overflow(&self, overflow: Overflow)

Sets how @self treats content that is drawn outside the widget’s content area. Read more
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fn set_parent(&self, parent: &impl IsA<Widget>)

Sets @parent as the parent widget of @self. Read more
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fn set_receives_default(&self, receives_default: bool)

Specifies whether @self will be treated as the default widget within its toplevel when it has the focus, even if another widget is the default. Read more
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fn set_sensitive(&self, sensitive: bool)

Sets the sensitivity of a widget. Read more
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fn set_size_request(&self, width: i32, height: i32)

Sets the minimum size of a widget. Read more
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fn set_state_flags(&self, flags: StateFlags, clear: bool)

Turns on flag values in the current widget state. Read more
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fn set_tooltip_markup(&self, markup: Option<&str>)

Sets @markup as the contents of the tooltip, which is marked up with Pango markup. Read more
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fn set_tooltip_text(&self, text: Option<&str>)

Sets @text as the contents of the tooltip. Read more
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fn set_valign(&self, align: Align)

Sets the vertical alignment of @self. Read more
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fn set_vexpand(&self, expand: bool)

Sets whether the widget would like any available extra vertical space. Read more
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fn set_vexpand_set(&self, set: bool)

Sets whether the vexpand flag will be used. Read more
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fn set_visible(&self, visible: bool)

Sets the visibility state of @self. Read more
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fn should_layout(&self) -> bool

Returns whether @self should contribute to the measuring and allocation of its parent. Read more
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fn show(&self)

👎Deprecated: Since 4.10
Flags a widget to be displayed. Read more
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fn size_allocate(&self, allocation: &Allocation, baseline: i32)

Allocates widget with a transformation that translates the origin to the position in @allocation. Read more
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fn snapshot_child( &self, child: &impl IsA<Widget>, snapshot: &impl IsA<Snapshot> )

Snapshot the a child of @self. Read more
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fn translate_coordinates( &self, dest_widget: &impl IsA<Widget>, src_x: f64, src_y: f64 ) -> Option<(f64, f64)>

👎Deprecated: Since 4.12
Translate coordinates relative to @self’s allocation to coordinates relative to @dest_widget’s allocations. Read more
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fn trigger_tooltip_query(&self)

Triggers a tooltip query on the display where the toplevel of @self is located.
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fn unmap(&self)

Causes a widget to be unmapped if it’s currently mapped. Read more
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fn unparent(&self)

Dissociate @self from its parent. Read more
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fn unrealize(&self)

Causes a widget to be unrealized (frees all GDK resources associated with the widget). Read more
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fn unset_state_flags(&self, flags: StateFlags)

Turns off flag values for the current widget state. Read more
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fn height_request(&self) -> i32

Override for height request of the widget. Read more
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fn set_height_request(&self, height_request: i32)

Override for height request of the widget. Read more
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fn width_request(&self) -> i32

Override for width request of the widget. Read more
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fn set_width_request(&self, width_request: i32)

Override for width request of the widget. Read more
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fn connect_destroy<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Signals that all holders of a reference to the widget should release the reference that they hold. Read more
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fn connect_direction_changed<F: Fn(&Self, TextDirection) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the text direction of a widget changes. Read more
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fn connect_hide<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when @widget is hidden.
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fn connect_keynav_failed<F: Fn(&Self, DirectionType) -> Propagation + 'static>( &self, f: F ) -> SignalHandlerId

Emitted if keyboard navigation fails. Read more
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fn connect_map<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when @widget is going to be mapped. Read more
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fn connect_mnemonic_activate<F: Fn(&Self, bool) -> Propagation + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when a widget is activated via a mnemonic. Read more
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fn connect_move_focus<F: Fn(&Self, DirectionType) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the focus is moved. Read more
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fn emit_move_focus(&self, direction: DirectionType)

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fn connect_query_tooltip<F: Fn(&Self, i32, i32, bool, &Tooltip) -> bool + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the widget’s tooltip is about to be shown. Read more
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fn connect_realize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when @widget is associated with a gdk::Surface. Read more
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fn connect_show<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when @widget is shown.
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fn connect_state_flags_changed<F: Fn(&Self, StateFlags) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the widget state changes. Read more
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fn connect_unmap<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when @widget is going to be unmapped. Read more
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fn connect_unrealize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted when the gdk::Surface associated with @widget is destroyed. Read more
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fn connect_can_focus_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_can_target_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_css_classes_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_cursor_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_focus_on_click_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_focusable_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_halign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_has_default_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_has_focus_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_has_tooltip_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_height_request_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_hexpand_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_hexpand_set_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_layout_manager_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_margin_bottom_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_margin_end_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_margin_start_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_margin_top_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_opacity_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_overflow_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_parent_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_receives_default_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_root_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_scale_factor_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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

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fn connect_tooltip_markup_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_tooltip_text_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_valign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_vexpand_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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fn connect_vexpand_set_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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

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fn connect_width_request_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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impl<O> WidgetExtManual for O
where O: IsA<Widget>,

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fn add_tick_callback<P: Fn(&Self, &FrameClock) -> ControlFlow + 'static>( &self, callback: P ) -> TickCallbackId

Queues an animation frame update and adds a callback to be called before each frame. Read more
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impl<O> AccessibleRangeExt for O
where O: IsA<AccessibleRange>,

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impl<O> ConstraintTargetExt for O

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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>,