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use crate::{Actor, ActorMeta, AlignAxis, Constraint};
use glib::{
object as gobject,
object::{Cast, IsA, ObjectType as ObjectType_},
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::boxed::Box as Box_;
use std::{fmt, mem::transmute};
glib_wrapper! {
pub struct AlignConstraint(Object<ffi::ClutterAlignConstraint, ffi::ClutterAlignConstraintClass, AlignConstraintClass>) @extends Constraint, ActorMeta, gobject::InitiallyUnowned;
match fn {
get_type => || ffi::clutter_align_constraint_get_type(),
}
}
impl AlignConstraint {
/// Creates a new constraint, aligning a `Actor`'s position with
/// regards of the size of the actor to `source`, with the given
/// alignment `factor`
/// ## `source`
/// the `Actor` to use as the source of the
/// alignment, or `None`
/// ## `axis`
/// the axis to be used to compute the alignment
/// ## `factor`
/// the alignment factor, between 0.0 and 1.0
///
/// # Returns
///
/// the newly created `AlignConstraint`
pub fn new<P: IsA<Actor>>(source: Option<&P>, axis: AlignAxis, factor: f32) -> AlignConstraint {
unsafe {
Constraint::from_glib_none(ffi::clutter_align_constraint_new(
source.map(|p| p.as_ref()).to_glib_none().0,
axis.to_glib(),
factor,
))
.unsafe_cast()
}
}
/// Retrieves the value set using `AlignConstraint::set_align_axis`
///
/// # Returns
///
/// the alignment axis
pub fn get_align_axis(&self) -> AlignAxis {
unsafe {
from_glib(ffi::clutter_align_constraint_get_align_axis(
self.to_glib_none().0,
))
}
}
/// Retrieves the factor set using `AlignConstraint::set_factor`
///
/// # Returns
///
/// the alignment factor
pub fn get_factor(&self) -> f32 {
unsafe { ffi::clutter_align_constraint_get_factor(self.to_glib_none().0) }
}
/// Retrieves the source of the alignment
///
/// # Returns
///
/// the `Actor` used as the source
/// of the alignment
pub fn get_source(&self) -> Option<Actor> {
unsafe {
from_glib_none(ffi::clutter_align_constraint_get_source(
self.to_glib_none().0,
))
}
}
/// Sets the axis to which the alignment refers to
/// ## `axis`
/// the axis to which the alignment refers to
pub fn set_align_axis(&self, axis: AlignAxis) {
unsafe {
ffi::clutter_align_constraint_set_align_axis(self.to_glib_none().0, axis.to_glib());
}
}
/// Sets the alignment factor of the constraint
///
/// The factor depends on the `AlignConstraint:align-axis` property
/// and it is a value between 0.0 (meaning left, when
/// `AlignConstraint:align-axis` is set to `AlignAxis::XAxis`; or
/// meaning top, when `AlignConstraint:align-axis` is set to
/// `AlignAxis::YAxis`) and 1.0 (meaning right, when
/// `AlignConstraint:align-axis` is set to `AlignAxis::XAxis`; or
/// meaning bottom, when `AlignConstraint:align-axis` is set to
/// `AlignAxis::YAxis`). A value of 0.5 aligns in the middle in either
/// cases
/// ## `factor`
/// the alignment factor, between 0.0 and 1.0
pub fn set_factor(&self, factor: f32) {
unsafe {
ffi::clutter_align_constraint_set_factor(self.to_glib_none().0, factor);
}
}
/// Sets the source of the alignment constraint
/// ## `source`
/// a `Actor`, or `None` to unset the source
pub fn set_source<P: IsA<Actor>>(&self, source: Option<&P>) {
unsafe {
ffi::clutter_align_constraint_set_source(
self.to_glib_none().0,
source.map(|p| p.as_ref()).to_glib_none().0,
);
}
}
pub fn connect_property_align_axis_notify<F: Fn(&AlignConstraint) + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_align_axis_trampoline<F: Fn(&AlignConstraint) + 'static>(
this: *mut ffi::ClutterAlignConstraint,
_param_spec: glib_sys::gpointer,
f: glib_sys::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::align-axis\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_align_axis_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
pub fn connect_property_factor_notify<F: Fn(&AlignConstraint) + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_factor_trampoline<F: Fn(&AlignConstraint) + 'static>(
this: *mut ffi::ClutterAlignConstraint,
_param_spec: glib_sys::gpointer,
f: glib_sys::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::factor\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_factor_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
pub fn connect_property_source_notify<F: Fn(&AlignConstraint) + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_source_trampoline<F: Fn(&AlignConstraint) + 'static>(
this: *mut ffi::ClutterAlignConstraint,
_param_spec: glib_sys::gpointer,
f: glib_sys::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::source\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_source_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl fmt::Display for AlignConstraint {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "AlignConstraint")
}
}