#[repr(transparent)]pub struct Renderer { /* private fields */ }
Expand description
Renderer
is a base class for objects that can render text
provided as GlyphString
or Layout
.
By subclassing Renderer
and overriding operations such as
@draw_glyphs and @draw_rectangle, renderers for particular font
backends and destinations can be created.
This is an Abstract Base Class, you cannot instantiate it.
Implements
Implementations§
Trait Implementations§
source§impl Ord for Renderer
impl Ord for Renderer
source§impl<OT: ObjectType> PartialEq<OT> for Renderer
impl<OT: ObjectType> PartialEq<OT> for Renderer
source§impl<OT: ObjectType> PartialOrd<OT> for Renderer
impl<OT: ObjectType> PartialOrd<OT> for Renderer
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
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 moresource§impl StaticType for Renderer
impl StaticType for Renderer
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for Renderer
Auto Trait Implementations§
impl RefUnwindSafe for Renderer
impl !Send for Renderer
impl !Sync for Renderer
impl Unpin for Renderer
impl UnwindSafe for Renderer
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
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impl<T> Cast for Twhere T: ObjectType,
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source§impl<U> IsSubclassableExt for Uwhere
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fn parent_class_init<T>(class: &mut Class<U>)where T: ObjectSubclass, <U as ParentClassIs>::Parent: IsSubclassable<T>,
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source§impl<T> ObjectExt for Twhere
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.source§fn object_class(&self) -> &Class<Object>
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fn set_property_from_value(&self, property_name: &str, value: &Value)
source§fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
Sets multiple properties of the object at once. Read more
source§fn set_properties_from_value(&self, property_values: &[(&str, Value)])
fn set_properties_from_value(&self, property_values: &[(&str, Value)])
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Get the
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fn list_properties(&self) -> PtrSlice<ParamSpec>
Return all
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
Freeze all property notifications until the return guard object is dropped. Read more
source§unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
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Set arbitrary data on this object with the given
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Return previously set arbitrary data of this object with the given
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Retrieve previously set arbitrary data of this object with the given
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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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Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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after: bool,
callback: F
) -> SignalHandlerIdwhere
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closure: RustClosure
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after: bool,
closure: RustClosure
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&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
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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&self,
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details: Quark,
args: &[&dyn ToValue]
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fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
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&self,
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details: Quark,
args: &[Value]
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&self,
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details: Quark,
args: &[&dyn ToValue]
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&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
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Emit signal by signal id with details. Read more
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
Disconnect a previously connected signal handler.
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
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Connect to the
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Connect to the
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&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),
Connect to the
notify
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fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
source§fn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
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Add a callback to be notified when the Object is disposed.
source§fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
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source§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,
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,
source§unsafe fn run_dispose(&self)
unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<O> RendererExt for Owhere
O: IsA<Renderer>,
impl<O> RendererExt for Owhere O: IsA<Renderer>,
source§fn deactivate(&self)
fn deactivate(&self)
Cleans up after rendering operations on @self. Read more
source§fn draw_error_underline(&self, x: i32, y: i32, width: i32, height: i32)
fn draw_error_underline(&self, x: i32, y: i32, width: i32, height: i32)
Draw a squiggly line that approximately covers the given rectangle
in the style of an underline used to indicate a spelling error. Read more
source§fn draw_glyph(&self, font: &impl IsA<Font>, glyph: u32, x: f64, y: f64)
fn draw_glyph(&self, font: &impl IsA<Font>, glyph: u32, x: f64, y: f64)
Draws a single glyph with coordinates in device space. Read more
source§fn draw_glyphs(
&self,
font: &impl IsA<Font>,
glyphs: &mut GlyphString,
x: i32,
y: i32
)
fn draw_glyphs( &self, font: &impl IsA<Font>, glyphs: &mut GlyphString, x: i32, y: i32 )
source§fn draw_layout_line(&self, line: &LayoutLine, x: i32, y: i32)
fn draw_layout_line(&self, line: &LayoutLine, x: i32, y: i32)
source§fn draw_rectangle(
&self,
part: RenderPart,
x: i32,
y: i32,
width: i32,
height: i32
)
fn draw_rectangle( &self, part: RenderPart, x: i32, y: i32, width: i32, height: i32 )
source§fn draw_trapezoid(
&self,
part: RenderPart,
y1_: f64,
x11: f64,
x21: f64,
y2: f64,
x12: f64,
x22: f64
)
fn draw_trapezoid( &self, part: RenderPart, y1_: f64, x11: f64, x21: f64, y2: f64, x12: f64, x22: f64 )
source§fn alpha(&self, part: RenderPart) -> u16
fn alpha(&self, part: RenderPart) -> u16
Gets the current alpha for the specified part. Read more
source§fn color(&self, part: RenderPart) -> Option<Color>
fn color(&self, part: RenderPart) -> Option<Color>
Gets the current rendering color for the specified part. Read more
source§fn layout(&self) -> Option<Layout>
fn layout(&self) -> Option<Layout>
Gets the layout currently being rendered using @self. Read more
source§fn layout_line(&self) -> Option<LayoutLine>
fn layout_line(&self) -> Option<LayoutLine>
Gets the layout line currently being rendered using @self. Read more
source§fn matrix(&self) -> Option<Matrix>
fn matrix(&self) -> Option<Matrix>
Gets the transformation matrix that will be applied when
rendering. Read more
source§fn part_changed(&self, part: RenderPart)
fn part_changed(&self, part: RenderPart)
Informs Pango that the way that the rendering is done
for @part has changed. Read more
source§fn set_alpha(&self, part: RenderPart, alpha: u16)
fn set_alpha(&self, part: RenderPart, alpha: u16)
Sets the alpha for part of the rendering. Read more
source§impl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere T: StaticType,
source§fn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.