use crate::EventController;
use crate::Gesture;
use crate::PropagationPhase;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
use glib::object::ObjectType as ObjectType_;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::fmt;
use std::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(widget: &impl IsA<Widget>) -> GestureZoom {
skip_assert_initialized!();
unsafe {
Gesture::from_glib_full(ffi::gtk_gesture_zoom_new(widget.as_ref().to_glib_none().0))
.unsafe_cast()
}
}
pub fn builder() -> GestureZoomBuilder {
GestureZoomBuilder::default()
}
#[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 {
glib::object::Object::new::<Self>(&[])
}
}
#[derive(Clone, Default)]
#[must_use = "The builder must be built to be used"]
pub struct GestureZoomBuilder {
n_points: Option<u32>,
window: Option<gdk::Window>,
propagation_phase: Option<PropagationPhase>,
widget: Option<Widget>,
}
impl GestureZoomBuilder {
pub fn new() -> Self {
Self::default()
}
#[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
pub fn build(self) -> GestureZoom {
let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
if let Some(ref n_points) = self.n_points {
properties.push(("n-points", n_points));
}
if let Some(ref window) = self.window {
properties.push(("window", window));
}
if let Some(ref propagation_phase) = self.propagation_phase {
properties.push(("propagation-phase", propagation_phase));
}
if let Some(ref widget) = self.widget {
properties.push(("widget", widget));
}
glib::Object::new::<GestureZoom>(&properties)
}
pub fn n_points(mut self, n_points: u32) -> Self {
self.n_points = Some(n_points);
self
}
pub fn window(mut self, window: &gdk::Window) -> Self {
self.window = Some(window.clone());
self
}
pub fn propagation_phase(mut self, propagation_phase: PropagationPhase) -> Self {
self.propagation_phase = Some(propagation_phase);
self
}
pub fn widget(mut self, widget: &impl IsA<Widget>) -> Self {
self.widget = Some(widget.clone().upcast());
self
}
}
impl fmt::Display for GestureZoom {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("GestureZoom")
}
}