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use crate::subclass::prelude::*;
use crate::{Border, Range, ScrollType};
use glib::translate::*;
use glib::Cast;
pub trait RangeImpl: RangeImplExt + WidgetImpl {
fn adjust_bounds(&self, range: &Self::Type, new_value: f64) {
self.parent_adjust_bounds(range, new_value)
}
fn change_value(&self, range: &Self::Type, scroll_type: ScrollType, new_value: f64) -> bool {
self.parent_change_value(range, scroll_type, new_value)
}
#[doc(alias = "get_range_border")]
fn range_border(&self, range: &Self::Type) -> Border {
self.parent_range_border(range)
}
fn move_slider(&self, range: &Self::Type, scroll_type: ScrollType) {
self.parent_move_slider(range, scroll_type)
}
fn value_changed(&self, range: &Self::Type) {
self.parent_value_changed(range)
}
}
pub trait RangeImplExt: ObjectSubclass {
fn parent_adjust_bounds(&self, range: &Self::Type, new_value: f64);
fn parent_change_value(
&self,
range: &Self::Type,
scroll_type: ScrollType,
new_value: f64,
) -> bool;
fn parent_range_border(&self, range: &Self::Type) -> Border;
fn parent_move_slider(&self, range: &Self::Type, scroll_type: ScrollType);
fn parent_value_changed(&self, range: &Self::Type);
}
impl<T: RangeImpl> RangeImplExt for T {
fn parent_adjust_bounds(&self, range: &Self::Type, new_value: f64) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRangeClass;
if let Some(f) = (*parent_class).adjust_bounds {
f(range.unsafe_cast_ref::<Range>().to_glib_none().0, new_value)
}
}
}
fn parent_change_value(
&self,
range: &Self::Type,
scroll_type: ScrollType,
new_value: f64,
) -> bool {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRangeClass;
let f = (*parent_class)
.change_value
.expect("No parent class impl for \"change_value\"");
from_glib(f(
range.unsafe_cast_ref::<Range>().to_glib_none().0,
scroll_type.into_glib(),
new_value,
))
}
}
fn parent_range_border(&self, range: &Self::Type) -> Border {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRangeClass;
let mut border = Border::default();
if let Some(f) = (*parent_class).get_range_border {
f(
range.unsafe_cast_ref::<Range>().to_glib_none().0,
border.to_glib_none_mut().0,
);
}
border
}
}
fn parent_move_slider(&self, range: &Self::Type, scroll_type: ScrollType) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRangeClass;
if let Some(f) = (*parent_class).move_slider {
f(
range.unsafe_cast_ref::<Range>().to_glib_none().0,
scroll_type.into_glib(),
)
}
}
}
fn parent_value_changed(&self, range: &Self::Type) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRangeClass;
if let Some(f) = (*parent_class).value_changed {
f(range.unsafe_cast_ref::<Range>().to_glib_none().0)
}
}
}
}
unsafe impl<T: RangeImpl> IsSubclassable<T> for Range {
fn class_init(class: &mut glib::Class<Self>) {
Self::parent_class_init::<T>(class);
let klass = class.as_mut();
klass.adjust_bounds = Some(range_adjust_bounds::<T>);
klass.change_value = Some(range_change_value::<T>);
klass.get_range_border = Some(range_get_range_border::<T>);
klass.move_slider = Some(range_move_slider::<T>);
klass.value_changed = Some(range_value_changed::<T>);
}
}
unsafe extern "C" fn range_adjust_bounds<T: RangeImpl>(ptr: *mut ffi::GtkRange, new_value: f64) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let wrap: Borrowed<Range> = from_glib_borrow(ptr);
imp.adjust_bounds(wrap.unsafe_cast_ref(), new_value)
}
unsafe extern "C" fn range_change_value<T: RangeImpl>(
ptr: *mut ffi::GtkRange,
scroll_type: ffi::GtkScrollType,
new_value: f64,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let wrap: Borrowed<Range> = from_glib_borrow(ptr);
imp.change_value(wrap.unsafe_cast_ref(), from_glib(scroll_type), new_value)
.into_glib()
}
unsafe extern "C" fn range_get_range_border<T: RangeImpl>(
ptr: *mut ffi::GtkRange,
borderptr: *mut ffi::GtkBorder,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let wrap: Borrowed<Range> = from_glib_borrow(ptr);
let border = imp.range_border(wrap.unsafe_cast_ref());
*borderptr = *border.to_glib_none().0;
}
unsafe extern "C" fn range_move_slider<T: RangeImpl>(
ptr: *mut ffi::GtkRange,
scroll_type: ffi::GtkScrollType,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let wrap: Borrowed<Range> = from_glib_borrow(ptr);
imp.move_slider(wrap.unsafe_cast_ref(), from_glib(scroll_type))
}
unsafe extern "C" fn range_value_changed<T: RangeImpl>(ptr: *mut ffi::GtkRange) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
let wrap: Borrowed<Range> = from_glib_borrow(ptr);
imp.value_changed(wrap.unsafe_cast_ref())
}
