use crate::{EventController, Gesture, PropagationLimit, PropagationPhase};
use glib::{
prelude::*,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};
glib::wrapper! {
#[doc(alias = "GtkGestureZoom")]
pub struct GestureZoom(Object<ffi::GtkGestureZoom, ffi::GtkGestureZoomClass>) @extends Gesture, EventController;
match fn {
type_ => || ffi::gtk_gesture_zoom_get_type(),
}
}
impl GestureZoom {
#[doc(alias = "gtk_gesture_zoom_new")]
pub fn new() -> GestureZoom {
assert_initialized_main_thread!();
unsafe { Gesture::from_glib_full(ffi::gtk_gesture_zoom_new()).unsafe_cast() }
}
pub fn builder() -> GestureZoomBuilder {
GestureZoomBuilder::new()
}
#[doc(alias = "gtk_gesture_zoom_get_scale_delta")]
#[doc(alias = "get_scale_delta")]
pub fn scale_delta(&self) -> f64 {
unsafe { ffi::gtk_gesture_zoom_get_scale_delta(self.to_glib_none().0) }
}
#[doc(alias = "scale-changed")]
pub fn connect_scale_changed<F: Fn(&Self, f64) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn scale_changed_trampoline<F: Fn(&GestureZoom, f64) + 'static>(
this: *mut ffi::GtkGestureZoom,
scale: libc::c_double,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this), scale)
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"scale-changed\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
scale_changed_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl Default for GestureZoom {
fn default() -> Self {
Self::new()
}
}
#[must_use = "The builder must be built to be used"]
pub struct GestureZoomBuilder {
builder: glib::object::ObjectBuilder<'static, GestureZoom>,
}
impl GestureZoomBuilder {
fn new() -> Self {
Self {
builder: glib::object::Object::builder(),
}
}
pub fn n_points(self, n_points: u32) -> Self {
Self {
builder: self.builder.property("n-points", n_points),
}
}
pub fn name(self, name: impl Into<glib::GString>) -> Self {
Self {
builder: self.builder.property("name", name.into()),
}
}
pub fn propagation_limit(self, propagation_limit: PropagationLimit) -> Self {
Self {
builder: self
.builder
.property("propagation-limit", propagation_limit),
}
}
pub fn propagation_phase(self, propagation_phase: PropagationPhase) -> Self {
Self {
builder: self
.builder
.property("propagation-phase", propagation_phase),
}
}
#[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
pub fn build(self) -> GestureZoom {
self.builder.build()
}
}
impl fmt::Display for GestureZoom {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("GestureZoom")
}
}