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use crate::subclass::prelude::*;
use crate::CellAreaContext;
use glib::translate::*;
use glib::Cast;
use std::mem::MaybeUninit;
#[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
pub trait CellAreaContextImpl: CellAreaContextImplExt + ObjectImpl {
fn reset(&self) {
self.parent_reset()
}
fn preferred_height_for_width(&self, width: i32) -> (i32, i32) {
self.parent_preferred_height_for_width(width)
}
fn preferred_width_for_height(&self, height: i32) -> (i32, i32) {
self.parent_preferred_width_for_height(height)
}
fn allocate(&self, width: i32, height: i32) {
self.parent_allocate(width, height)
}
}
#[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
pub trait CellAreaContextImplExt: ObjectSubclass {
fn parent_reset(&self);
fn parent_preferred_height_for_width(&self, width: i32) -> (i32, i32);
fn parent_preferred_width_for_height(&self, height: i32) -> (i32, i32);
fn parent_allocate(&self, width: i32, height: i32);
}
impl<T: CellAreaContextImpl> CellAreaContextImplExt for T {
fn parent_reset(&self) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellAreaContextClass;
if let Some(f) = (*parent_class).reset {
f(self
.obj()
.unsafe_cast_ref::<CellAreaContext>()
.to_glib_none()
.0)
}
}
}
fn parent_preferred_height_for_width(&self, width: i32) -> (i32, i32) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellAreaContextClass;
if let Some(f) = (*parent_class).get_preferred_height_for_width {
let mut minimum_size = MaybeUninit::uninit();
let mut natural_size = MaybeUninit::uninit();
f(
self.obj()
.unsafe_cast_ref::<CellAreaContext>()
.to_glib_none()
.0,
width,
minimum_size.as_mut_ptr(),
natural_size.as_mut_ptr(),
);
(minimum_size.assume_init(), natural_size.assume_init())
} else {
(-1, -1)
}
}
}
fn parent_preferred_width_for_height(&self, height: i32) -> (i32, i32) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellAreaContextClass;
if let Some(f) = (*parent_class).get_preferred_width_for_height {
let mut minimum_size = MaybeUninit::uninit();
let mut natural_size = MaybeUninit::uninit();
f(
self.obj()
.unsafe_cast_ref::<CellAreaContext>()
.to_glib_none()
.0,
height,
minimum_size.as_mut_ptr(),
natural_size.as_mut_ptr(),
);
(minimum_size.assume_init(), natural_size.assume_init())
} else {
(-1, -1)
}
}
}
fn parent_allocate(&self, width: i32, height: i32) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellAreaContextClass;
if let Some(f) = (*parent_class).allocate {
f(
self.obj()
.unsafe_cast_ref::<CellAreaContext>()
.to_glib_none()
.0,
width,
height,
)
}
}
}
}
unsafe impl<T: CellAreaContextImpl> IsSubclassable<T> for CellAreaContext {
fn class_init(class: &mut glib::Class<Self>) {
Self::parent_class_init::<T>(class);
assert!(
crate::rt::is_initialized(),
"GTK has to be initialized first"
);
let klass = class.as_mut();
klass.reset = Some(cell_area_context_reset::<T>);
klass.get_preferred_height_for_width =
Some(cell_area_context_get_preferred_height_for_width::<T>);
klass.get_preferred_width_for_height =
Some(cell_area_context_get_preferred_width_for_height::<T>);
klass.allocate = Some(cell_area_context_allocate::<T>);
}
}
unsafe extern "C" fn cell_area_context_reset<T: CellAreaContextImpl>(
ptr: *mut ffi::GtkCellAreaContext,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
imp.reset()
}
unsafe extern "C" fn cell_area_context_get_preferred_height_for_width<T: CellAreaContextImpl>(
ptr: *mut ffi::GtkCellAreaContext,
width: i32,
minimum_height: *mut libc::c_int,
natural_height: *mut libc::c_int,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let (min_height, nat_height) = imp.preferred_height_for_width(width);
*minimum_height = min_height;
*natural_height = nat_height;
}
unsafe extern "C" fn cell_area_context_get_preferred_width_for_height<T: CellAreaContextImpl>(
ptr: *mut ffi::GtkCellAreaContext,
height: i32,
minimum_width: *mut libc::c_int,
natural_width: *mut libc::c_int,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let (min_width, nat_width) = imp.preferred_width_for_height(height);
*minimum_width = min_width;
*natural_width = nat_width;
}
unsafe extern "C" fn cell_area_context_allocate<T: CellAreaContextImpl>(
ptr: *mut ffi::GtkCellAreaContext,
width: i32,
height: i32,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
imp.allocate(width, height)
}