Struct gstreamer_editing_services::Group [−][src]
pub struct Group(_);
A crate::Group controls one or more crate::Container-s (usually crate::Clip-s,
but it can also control other crate::Group-s). Its children must share
the same crate::Timeline, but can otherwise lie in separate crate::Layer-s
and have different timings.
To initialise a group, you may want to use crate::Container::group(),
and similarly use crate::prelude::GESContainerExt::ungroup() to dispose of it.
A group will maintain the relative [crate::TimelineElement:start] times of
its children, as well as their relative layer [crate::Layer:priority].
Therefore, if one of its children has its [crate::TimelineElement:start]
set, all other children will have their [crate::TimelineElement:start]
shifted by the same amount. Similarly, if one of its children moves to
a new layer, the other children will also change layers to maintain the
difference in their layer priorities. For example, if a child moves
from a layer with [crate::Layer:priority] 1 to a layer with priority 3, then
another child that was in a layer with priority 0 will move to the
layer with priority 2.
The [crate::Group:start] of a group refers to the earliest start
time of its children. If the group’s [crate::Group:start] is set, all the
children will be shifted equally such that the earliest start time
will match the set value. The [crate::Group:duration] of a group is the
difference between the earliest start time and latest end time of its
children. If the group’s [crate::Group:duration] is increased, the children
whose end time matches the end of the group will be extended
accordingly. If it is decreased, then any child whose end time exceeds
the new end time will also have their duration decreased accordingly.
A group may span several layers, but for methods such as
[crate::prelude::TimelineElementExt::get_layer_priority()] and
crate::prelude::TimelineElementExt::edit() a group is considered to have a layer
priority that is the highest [crate::Layer:priority] (numerically, the
smallest) of all the layers it spans.
Implements
crate::prelude::GroupExt, crate::prelude::GESContainerExt, crate::prelude::TimelineElementExt, glib::object::ObjectExt, crate::prelude::ExtractableExt, crate::prelude::TimelineElementExtManual
Implementations
impl Group[src]
impl Group[src]pub fn new() -> Group[src]
pub fn new() -> Group[src]Created a new empty group. You may wish to use
crate::Container::group() instead, which can return a different
crate::Container subclass if possible.
Returns
The new empty group.
Trait Implementations
impl Ord for Group[src]
impl Ord for Group[src]impl ParentClassIs for Group[src]
impl ParentClassIs for Group[src]impl<T: ObjectType> PartialEq<T> for Group[src]
impl<T: ObjectType> PartialEq<T> for Group[src]impl<T: ObjectType> PartialOrd<T> for Group[src]
impl<T: ObjectType> PartialOrd<T> for Group[src]fn partial_cmp(&self, other: &T) -> Option<Ordering>[src]
fn partial_cmp(&self, other: &T) -> Option<Ordering>[src]This method returns an ordering between self and other values if one exists. Read more
#[must_use]fn lt(&self, other: &Rhs) -> bool1.0.0[src]
#[must_use]fn lt(&self, other: &Rhs) -> bool1.0.0[src]This method tests less than (for self and other) and is used by the < operator. Read more
#[must_use]fn le(&self, other: &Rhs) -> bool1.0.0[src]
#[must_use]fn le(&self, other: &Rhs) -> bool1.0.0[src]This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
impl StaticType for Group[src]
impl StaticType for Group[src]fn static_type() -> Type[src]
fn static_type() -> Type[src]Returns the type identifier of Self.
impl Eq for Group[src]
impl IsA<Container> for Group[src]
impl IsA<Extractable> for Group[src]
impl IsA<TimelineElement> for Group[src]
impl StructuralEq for Group[src]
Auto Trait Implementations
impl RefUnwindSafe for Group
impl !Send for Group
impl !Sync for Group
impl Unpin for Group
impl UnwindSafe for Group
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]pub fn borrow_mut(&mut self) -> &mut T[src]
pub fn borrow_mut(&mut self) -> &mut T[src]Mutably borrows from an owned value. Read more
impl<T> Cast for T where
T: ObjectType, [src]
impl<T> Cast for T where
T: ObjectType, [src]fn upcast<T>(self) -> T where
Self: IsA<T>,
T: ObjectType, [src]
fn upcast<T>(self) -> T where
Self: IsA<T>,
T: ObjectType, [src]Upcasts an object to a superclass or interface T. Read more
fn upcast_ref<T>(&self) -> &T where
Self: IsA<T>,
T: ObjectType, [src]
fn upcast_ref<T>(&self) -> &T where
Self: IsA<T>,
T: ObjectType, [src]Upcasts an object to a reference of its superclass or interface T. Read more
fn downcast<T>(self) -> Result<T, Self> where
Self: CanDowncast<T>,
T: ObjectType, [src]
fn downcast<T>(self) -> Result<T, Self> where
Self: CanDowncast<T>,
T: ObjectType, [src]Tries to downcast to a subclass or interface implementor T. Read more
fn downcast_ref<T>(&self) -> Option<&T> where
Self: CanDowncast<T>,
T: ObjectType, [src]
fn downcast_ref<T>(&self) -> Option<&T> where
Self: CanDowncast<T>,
T: ObjectType, [src]Tries to downcast to a reference of its subclass or interface implementor T. Read more
fn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType, [src]
fn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType, [src]Tries to cast to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
fn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType, [src]
fn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType, [src]Tries to cast to reference to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
unsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType, [src]
unsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType, [src]Casts to T unconditionally. Read more
unsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType, [src]
unsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType, [src]Casts to &T unconditionally. Read more
impl<O> GObjectExtManualGst for O where
O: IsA<Object>, [src]
impl<O> GObjectExtManualGst for O where
O: IsA<Object>, [src]pub fn set_property_from_str(&self, name: &str, value: &str)[src]
impl<T> ObjectExt for T where
T: ObjectType, [src]
impl<T> ObjectExt for T where
T: ObjectType, [src]pub fn is<U>(&self) -> bool where
U: StaticType, [src]
pub fn is<U>(&self) -> bool where
U: StaticType, [src]Returns true if the object is an instance of (can be cast to) T.
pub fn type_(&self) -> Type[src]
pub fn object_class(&self) -> &Class<Object>[src]
pub fn class(&self) -> &Class<T> where
T: IsClass, [src]
T: IsClass,
pub fn class_of<U>(&self) -> Option<&Class<U>> where
U: IsClass, [src]
U: IsClass,
pub fn interface<U>(&self) -> Option<InterfaceRef<'_, U>> where
U: IsInterface, [src]
U: IsInterface,
pub fn set_properties(
&self,
property_values: &[(&str, &dyn ToValue)]
) -> Result<(), BoolError>[src]
&self,
property_values: &[(&str, &dyn ToValue)]
) -> Result<(), BoolError>
pub fn set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>[src]
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
pub fn set_property<'a, N, V>(
&self,
property_name: N,
value: V
) -> Result<(), BoolError> where
V: ToValue,
N: Into<&'a str>, [src]
&self,
property_name: N,
value: V
) -> Result<(), BoolError> where
V: ToValue,
N: Into<&'a str>,
pub fn set_property_from_value<'a, N>(
&self,
property_name: N,
value: &Value
) -> Result<(), BoolError> where
N: Into<&'a str>, [src]
&self,
property_name: N,
value: &Value
) -> Result<(), BoolError> where
N: Into<&'a str>,
pub fn property<'a, N>(&self, property_name: N) -> Result<Value, BoolError> where
N: Into<&'a str>, [src]
N: Into<&'a str>,
pub unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>> where
QD: 'static, [src]
pub unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>> where
QD: 'static, [src]Safety Read more
pub unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where
QD: 'static, [src]
pub unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where
QD: 'static, [src]Safety Read more
pub unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>> where
QD: 'static, [src]
pub unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>> where
QD: 'static, [src]Safety Read more
pub unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where
QD: 'static, [src]
pub unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where
QD: 'static, [src]Safety Read more
pub fn block_signal(&self, handler_id: &SignalHandlerId)[src]
pub fn unblock_signal(&self, handler_id: &SignalHandlerId)[src]
pub fn stop_signal_emission(&self, signal_name: &str)[src]
pub fn disconnect(&self, handler_id: SignalHandlerId)[src]
pub fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync, [src]
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
pub fn connect_notify_local<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec), [src]
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
pub unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec), [src]
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
pub fn notify<'a, N>(&self, property_name: N) where
N: Into<&'a str>, [src]
N: Into<&'a str>,
pub fn notify_by_pspec(&self, pspec: &ParamSpec)[src]
pub fn has_property<'a, N>(&self, property_name: N, type_: Option<Type>) -> bool where
N: Into<&'a str>, [src]
N: Into<&'a str>,
pub fn property_type<'a, N>(&self, property_name: N) -> Option<Type> where
N: Into<&'a str>, [src]
N: Into<&'a str>,
pub fn find_property<'a, N>(&self, property_name: N) -> Option<ParamSpec> where
N: Into<&'a str>, [src]
N: Into<&'a str>,
pub fn list_properties(&self) -> Vec<ParamSpec, Global>[src]
pub fn connect<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
N: Into<&'a str>, [src]
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
N: Into<&'a str>,
pub fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static, [src]
pub fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static, [src]Same as connect but takes a SignalId instead of a signal name.
pub fn connect_local<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + 'static,
N: Into<&'a str>, [src]
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + 'static,
N: Into<&'a str>,
pub fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + 'static, [src]
pub fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value> + 'static, [src]Same as connect_local but takes a SignalId instead of a signal name.
pub unsafe fn connect_unsafe<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
N: Into<&'a str>, [src]
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>,
N: Into<&'a str>,
pub unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>, [src]
pub unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
F: Fn(&[Value]) -> Option<Value>, [src]Same as connect_unsafe but takes a SignalId instead of a signal name.
pub fn emit(
&self,
signal_id: SignalId,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError>[src]
pub fn emit(
&self,
signal_id: SignalId,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError>[src]Emit signal by signal id.
pub fn emit_with_details(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError>[src]
pub fn emit_with_details(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError>[src]Emit signal with details by signal id.
pub fn emit_by_name<'a, N>(
&self,
signal_name: N,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError> where
N: Into<&'a str>, [src]
pub fn emit_by_name<'a, N>(
&self,
signal_name: N,
args: &[&dyn ToValue]
) -> Result<Option<Value>, BoolError> where
N: Into<&'a str>, [src]Emit signal by it’s name.
pub fn downgrade(&self) -> WeakRef<T>[src]
pub fn bind_property<'a, O, N, M>(
&'a self,
source_property: N,
target: &'a O,
target_property: M
) -> BindingBuilder<'a> where
O: ObjectType,
N: Into<&'a str>,
M: Into<&'a str>, [src]
&'a self,
source_property: N,
target: &'a O,
target_property: M
) -> BindingBuilder<'a> where
O: ObjectType,
N: Into<&'a str>,
M: Into<&'a str>,
pub fn ref_count(&self) -> u32[src]
pub fn emit_with_values(
&self,
signal_id: SignalId,
args: &[Value]
) -> Result<Option<Value>, BoolError>[src]
pub fn emit_with_values(
&self,
signal_id: SignalId,
args: &[Value]
) -> Result<Option<Value>, BoolError>[src]Same as emit but takes Value for the arguments.
impl<T> ToOwned for T where
T: Clone, [src]
impl<T> ToOwned for T where
T: Clone, [src]type Owned = T
type Owned = TThe resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn to_owned(&self) -> T[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)[src]
pub fn clone_into(&self, target: &mut T)[src]🔬 This is a nightly-only experimental API. (toowned_clone_into)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T> ToSendValue for T where
T: Send + ToValue + ?Sized, [src]
impl<T> ToSendValue for T where
T: Send + ToValue + ?Sized, [src]pub fn to_send_value(&self) -> SendValue[src]
pub fn to_send_value(&self) -> SendValue[src]Returns a SendValue clone of self.
impl<Super, Sub> CanDowncast<Sub> for Super where
Sub: IsA<Super>,
Super: IsA<Super>, [src]
Sub: IsA<Super>,
Super: IsA<Super>,
impl<'a, T, C> FromValueOptional<'a> for T where
C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError>,
T: FromValue<'a, Checker = C>, [src]
C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError>,
T: FromValue<'a, Checker = C>,