Struct Viewport

pub struct Viewport { /* private fields */ }

The object holding the coordinate, zoom-level, and rotation state of the current view.

As the object implements Location, the latitude and longitude are accessible via the interface methods.

Properties

max-zoom-level

The highest allowed level of zoom of the content.

Readable | Writeable

min-zoom-level

The lowest allowed level of zoom of the content.

Readable | Writeable

reference-map-source

The reference #ShumateMapSource being displayed

Readable | Writeable

rotation

The rotation of the map view, in radians clockwise from up being due north

Readable | Writeable

zoom-level

The level of zoom of the content.

Readable | Writeable

Location

latitude

The latitude coordonate in degrees

Readable | Writeable

longitude

The longitude coordonate in degrees

Readable | Writeable

Implements

[trait@glib::ObjectExt], LocationExt

GLib type: GObject with reference counted clone semantics.

Implementations

impl Viewport

pub fn new() -> Viewport

Creates a new #ShumateViewport

Returns

A new #ShumateViewport

pub fn builder() -> ViewportBuilder

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

This method returns an instance of ViewportBuilder which can be used to create Viewport objects.

pub fn max_zoom_level(&self) -> u32

Get the maximal zoom level

Returns

the maximal zoom level

pub fn min_zoom_level(&self) -> u32

Get the minimal zoom level

Returns

the minimal zoom level

pub fn reference_map_source(&self) -> Option<MapSource>

Get the reference map source

Returns

the reference #ShumateMapSource or None when none has been set.

pub fn rotation(&self) -> f64

Gets the current rotation

Returns

the current rotation

pub fn zoom_level(&self) -> f64

Get the current zoom level

Returns

the current zoom level

pub fn location_to_widget_coords( &self, widget: &impl IsA<Widget>, latitude: f64, longitude: f64, ) -> (f64, f64)

Gets the position on @widget that correspond to the given latitude and longitude.

widget

a #GtkWidget that uses @self as viewport

latitude

the latitude

longitude

the longitude

Returns

x

return value for the x coordinate

y

return value for the y coordinate

pub fn set_max_zoom_level(&self, max_zoom_level: u32)

Set the maximal zoom level

max_zoom_level

the maximal zoom level

pub fn set_min_zoom_level(&self, min_zoom_level: u32)

Set the minimal zoom level

min_zoom_level

the minimal zoom level

pub fn set_reference_map_source(&self, map_source: Option<&impl IsA<MapSource>>)

Set the reference map source

map_source

a #ShumateMapSource or None to set none.

pub fn set_rotation(&self, rotation: f64)

Sets the rotation

rotation

the rotation

pub fn set_zoom_level(&self, zoom_level: f64)

Set the zoom level

zoom_level

the zoom level

pub fn widget_coords_to_location( &self, widget: &impl IsA<Widget>, x: f64, y: f64, ) -> (f64, f64)

Gets the latitude and longitude corresponding to a position on @widget.

widget

a #GtkWidget that uses @self as viewport

x

the x coordinate

y

the y coordinate

Returns

latitude

return location for the latitude

longitude

return location for the longitude

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

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

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

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

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

Trait Implementations

impl Clone for Viewport

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source.

impl Debug for Viewport

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

Formats the value using the given formatter.

impl Default for Viewport

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for Viewport

type ParamSpec = ParamSpecObject

type SetValue = Viewport

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(&str) -> ParamSpecObjectBuilder<'_, Viewport>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Viewport

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

where H: Hasher,

Hashes the memory address of this object.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Viewport

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParentClassIs for Viewport

type Parent = Object

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

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for Viewport

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Viewport

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Viewport

impl IsA<Location> for Viewport