Struct WaveformPaintable 

pub struct WaveformPaintable {
    waveform: RefCell<Cow<'static, [f32]>>,
    previous_waveform: RefCell<Option<Cow<'static, [f32]>>>,
    transition_progress: Cell<f64>,
}

Fields

waveform: RefCell<Cow<'static, [f32]>>

The waveform to display.

The values must be normalized between 0 and 1.

previous_waveform: RefCell<Option<Cow<'static, [f32]>>>

The previous waveform that was displayed, if any.

Use for the transition between waveforms.

transition_progress: Cell<f64>

The progress of the transition between waveforms.

Implementations

impl WaveformPaintable

fn register_type()

Registers the type only once.

impl WaveformPaintable

pub fn downgrade(&self) -> <Self as Downgrade>::Weak

impl WaveformPaintable

pub(super) fn set_waveform(&self, waveform: Vec<f32>) -> bool

Set the values of the bars to display.

The values must be normalized between 0 and 1.

Returns whether the waveform changed.

fn set_transition_progress(&self, progress: f64)

Set the progress of the transition between waveforms.

Trait Implementations

impl Debug for WaveformPaintable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for WaveformPaintable

fn default() -> Self

Returns the “default value” for a type.

impl DerivedObjectProperties for WaveformPaintable

fn derived_properties() -> &'static [ParamSpec]

Properties installed for this type.

fn derived_property(&self, id: usize, pspec: &ParamSpec) -> Value

Similar to ObjectImpl but auto-generated by the Properties macro to allow handling more complex use-cases.

fn derived_set_property(&self, id: usize, value: &Value, pspec: &ParamSpec)

Similar to ObjectImpl but auto-generated by the Properties macro to allow handling more complex use-cases.

impl ObjectImpl for WaveformPaintable

fn properties() -> &'static [ParamSpec]

Properties installed for this type.

fn set_property(&self, id: usize, value: &Value, pspec: &ParamSpec)

Property setter.

fn property(&self, id: usize, pspec: &ParamSpec) -> Value

Property getter.

fn signals() -> &'static [Signal]

Signals installed for this type.

fn constructed(&self)

Constructed.

fn dispose(&self)

Disposes of the object.

fn notify(&self, pspec: &ParamSpec)

Function to be called when property change is notified for with self.notify("property").

fn dispatch_properties_changed(&self, pspecs: &[ParamSpec])

impl ObjectSubclass for WaveformPaintable

const NAME: &'static str = "WaveformPaintable"

GObject type name.

type ParentType = Object

Parent Rust type to inherit from.

type Class = ClassStruct<WaveformPaintable>

The C class struct.

type Instance = InstanceStruct<WaveformPaintable>

The C instance struct.

type Type = WaveformPaintable

Wrapper around this subclass defined with wrapper!

type Interfaces = (Paintable,)

List of interfaces implemented by this type.

fn new() -> Self

Constructor.

const ABSTRACT: bool = false

If this subclass is an abstract class or not.

const ALLOW_NAME_CONFLICT: bool = false

Allow name conflicts for this class.

fn type_init(_type_: &mut InitializingType<Self>)

Additional type initialization.

fn class_init(_klass: &mut Self::Class)

Class initialization.

fn with_class(_klass: &Self::Class) -> Self

Constructor.

fn instance_init(_obj: &InitializingObject<Self>)

Performs additional instance initialization.

impl ObjectSubclassType for WaveformPaintable

fn type_data() -> NonNull<TypeData>

Storage for the type-specific data used during registration.

fn type_() -> Type

Returns the glib::Type ID of the subclass.

impl PaintableImpl for WaveformPaintable

fn intrinsic_width(&self) -> i32

fn intrinsic_height(&self) -> i32

fn snapshot(&self, snapshot: &Snapshot, width: f64, _height: f64)

fn current_image(&self) -> Paintable

fn flags(&self) -> PaintableFlags

fn intrinsic_aspect_ratio(&self) -> f64