Trait gtk4::prelude::ScaleButtonExt

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pub trait ScaleButtonExt: 'static {
Show 19 methods    // Required methods
    fn is_active(&self) -> bool;
    fn adjustment(&self) -> Adjustment;
    fn minus_button(&self) -> Button;
    fn plus_button(&self) -> Button;
    fn popup(&self) -> Widget;
    fn value(&self) -> f64;
    fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>);
    fn set_icons(&self, icons: &[&str]);
    fn set_value(&self, value: f64);
    fn icons(&self) -> Vec<GString>;
    fn connect_popdown<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
    fn emit_popdown(&self);
    fn connect_popup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
    fn emit_popup(&self);
    fn connect_value_changed<F: Fn(&Self, f64) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_active_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_adjustment_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_icons_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_value_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
}

Expand description

Trait containing all ScaleButton methods.

Required Methods§

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fn is_active(&self) -> bool

Available on crate feature v4_10 only.

Queries a ScaleButton and returns its current state.

Returns true if the scale button is pressed in and false if it is raised.

fn adjustment(&self) -> Adjustment

Gets the Adjustment associated with the ScaleButton’s scale.

See RangeExt::adjustment() for details.

Returns

the adjustment associated with the scale

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fn minus_button(&self) -> Button

Retrieves the minus button of the ScaleButton.

Returns

the minus button of the ScaleButton

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fn plus_button(&self) -> Button

Retrieves the plus button of the ScaleButton

Returns

the plus button of the ScaleButton

Retrieves the popup of the ScaleButton.

fn value(&self) -> f64

Gets the current value of the scale button.

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

Sets the Adjustment to be used as a model for the ScaleButton’s scale.

See RangeExt::set_adjustment() for details.

fn set_icons(&self, icons: &[&str])

Sets the icons to be used by the scale button.

`icons`

a None-terminated array of icon names

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fn set_value(&self, value: f64)

Sets the current value of the scale.

If the value is outside the minimum or maximum range values, it will be clamped to fit inside them.

The scale button emits the value-changed signal if the value changes.

fn icons(&self) -> Vec<GString>

The names of the icons to be used by the scale button.

The first item in the array will be used in the button when the current value is the lowest value, the second item for the highest value. All the subsequent icons will be used for all the other values, spread evenly over the range of values.

If there’s only one icon name in the @icons array, it will be used for all the values. If only two icon names are in the @icons array, the first one will be used for the bottom 50% of the scale, and the second one for the top 50%.

It is recommended to use at least 3 icons so that the ScaleButton reflects the current value of the scale better for the users.

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