Struct gtk4::Printer

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pub struct Printer { /* private fields */ }
Available on Linux only.
Expand description

A Printer object represents a printer.

You only need to deal directly with printers if you use the non-portable PrintUnixDialog API.

A Printer allows to get status information about the printer, such as its description, its location, the number of queued jobs, etc. Most importantly, a Printer object can be used to create a PrintJob object, which lets you print to the printer.

§Properties

§accepting-jobs

true if the printer is accepting jobs.

Readable

§accepts-pdf

true if this printer can accept PDF.

Readable | Writeable | Construct Only

§accepts-ps

true if this printer can accept PostScript.

Readable | Writeable | Construct Only

§icon-name

Icon name to use for the printer.

Readable

§is-virtual

false if this represents a real hardware device.

Readable | Writeable | Construct Only

§job-count

Number of jobs queued in the printer.

Readable

§location

Information about the location of the printer.

Readable

§name

The name of the printer.

Readable | Writeable | Construct Only

§paused

true if this printer is paused.

A paused printer still accepts jobs, but it does not print them.

Readable

§state-message

String giving the current status of the printer.

Readable

§Signals

§details-acquired

Emitted in response to a request for detailed information about a printer from the print backend.

The @success parameter indicates if the information was actually obtained.

§Implements

[trait@glib::ObjectExt]

Implementations§

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impl Printer

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pub fn accepts_pdf(&self) -> bool

Returns whether the printer accepts input in PDF format.

§Returns

true if @self accepts PDF

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pub fn accepts_ps(&self) -> bool

Returns whether the printer accepts input in PostScript format.

§Returns

true if @self accepts PostScript

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pub fn compare(&self, b: &Printer) -> i32

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pub fn capabilities(&self) -> PrintCapabilities

Returns the printer’s capabilities.

This is useful when you’re using PrintUnixDialog’s manual-capabilities setting and need to know which settings the printer can handle and which you must handle yourself.

This will return 0 unless the printer’s details are available, see has_details() and request_details().

§Returns

the printer’s capabilities

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pub fn default_page_size(&self) -> PageSetup

Returns default page size of @self.

§Returns

a newly allocated PageSetup with default page size of the printer.

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pub fn description(&self) -> GString

Gets the description of the printer.

§Returns

the description of @self

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pub fn hard_margins(&self) -> Option<(f64, f64, f64, f64)>

Retrieve the hard margins of @self.

These are the margins that define the area at the borders of the paper that the printer cannot print to.

Note: This will not succeed unless the printer’s details are available, see has_details() and request_details().

§Returns

true iff the hard margins were retrieved

§top

a location to store the top margin in

§bottom

a location to store the bottom margin in

§left

a location to store the left margin in

a location to store the right margin in

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pub fn hard_margins_for_paper_size( &self, paper_size: &mut PaperSize ) -> Option<(f64, f64, f64, f64)>

Retrieve the hard margins of @self for @paper_size.

These are the margins that define the area at the borders of the paper that the printer cannot print to.

Note: This will not succeed unless the printer’s details are available, see has_details() and request_details().

§paper_size

a PaperSize

§Returns

true iff the hard margins were retrieved

§top

a location to store the top margin in

§bottom

a location to store the bottom margin in

§left

a location to store the left margin in

§right

a location to store the right margin in

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pub fn icon_name(&self) -> GString

Gets the name of the icon to use for the printer.

§Returns

the icon name for @self

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pub fn job_count(&self) -> i32

Gets the number of jobs currently queued on the printer.

§Returns

the number of jobs on @self

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pub fn location(&self) -> GString

Returns a description of the location of the printer.

§Returns

the location of @self

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pub fn name(&self) -> GString

Returns the name of the printer.

§Returns

the name of @self

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pub fn state_message(&self) -> GString

Returns the state message describing the current state of the printer.

§Returns

the state message of @self

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pub fn has_details(&self) -> bool

Returns whether the printer details are available.

§Returns

true if @self details are available

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pub fn is_accepting_jobs(&self) -> bool

Returns whether the printer is accepting jobs

§Returns

true if @self is accepting jobs

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pub fn is_active(&self) -> bool

Returns whether the printer is currently active (i.e. accepts new jobs).

§Returns

true if @self is active

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pub fn is_default(&self) -> bool

Returns whether the printer is the default printer.

§Returns

true if @self is the default

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pub fn is_paused(&self) -> bool

Returns whether the printer is currently paused.

A paused printer still accepts jobs, but it is not printing them.

§Returns

true if @self is paused

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pub fn is_virtual(&self) -> bool

Returns whether the printer is virtual (i.e. does not represent actual printer hardware, but something like a CUPS class).

§Returns

true if @self is virtual

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pub fn list_papers(&self) -> Vec<PageSetup>

Lists all the paper sizes @self supports.

This will return and empty list unless the printer’s details are available, see has_details() and request_details().

§Returns

a newly allocated list of newly allocated PageSetups.

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pub fn request_details(&self)

Requests the printer details.

When the details are available, the details-acquired signal will be emitted on @self.

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

Emitted in response to a request for detailed information about a printer from the print backend.

The @success parameter indicates if the information was actually obtained.

§success

true if the details were successfully acquired

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

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

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

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

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

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

Trait Implementations§

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impl Clone for Printer

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 Display for Printer

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

Formats the value using the given formatter. Read more
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impl HasParamSpec for Printer

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type ParamSpec = ParamSpecObject

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type SetValue = Printer

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

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for Printer

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

Feeds this value into the given Hasher. Read more
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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 Printer

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

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

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for Printer

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

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

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for Printer

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for Printer

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Immutably borrows from an owned value. Read more
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Upcasts an object to a reference of its superclass or interface T. Read more
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Tries to downcast to a subclass or interface implementor T. Read more
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Tries to downcast to a reference of its subclass or interface implementor T. Read more
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Returns the argument unchanged.

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unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> 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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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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where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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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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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
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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<'f, 't, O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>
where O: ObjectType,

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

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

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

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type Value = T

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

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type Value = T

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

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

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fn ensure_type()

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

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type Owned = T

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

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

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> TransparentType for T

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

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type Error = Infallible

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

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

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

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

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

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

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