use std::{cmp::Ordering, ops, slice};
use crate::{
ffi, gobject_ffi, prelude::*, translate::*, ParamSpecValueArray, ParamSpecValueArrayBuilder,
Type, Value,
};
wrapper! {
#[derive(Debug)]
#[doc(alias = "GValueArray")]
pub struct ValueArray(Boxed<gobject_ffi::GValueArray>);
match fn {
copy => |ptr| gobject_ffi::g_value_array_copy(mut_override(ptr)),
free => |ptr| gobject_ffi::g_value_array_free(ptr),
}
}
impl ValueArray {
#[inline]
pub fn new(values: impl IntoIterator<Item = impl ToValue>) -> Self {
let iter = values.into_iter();
let mut array = Self::with_capacity(iter.size_hint().0);
for v in iter {
array.append(v.to_value());
}
array
}
#[inline]
pub fn from_values(values: impl IntoIterator<Item = Value>) -> Self {
Self::new(values)
}
#[doc(alias = "g_value_array_new")]
#[inline]
pub fn with_capacity(capacity: usize) -> ValueArray {
assert!(capacity <= u32::MAX as usize);
unsafe { from_glib_full(gobject_ffi::g_value_array_new(capacity as u32)) }
}
#[inline]
pub fn is_empty(&self) -> bool {
self.len() == 0
}
#[inline]
pub fn len(&self) -> usize {
self.inner.n_values as usize
}
#[doc(alias = "g_value_array_append")]
#[inline]
pub fn append(&mut self, value: impl ToValue) {
self.append_value(&value.to_value());
}
#[doc(alias = "g_value_array_append")]
#[inline]
pub fn append_value(&mut self, value: &Value) {
unsafe {
gobject_ffi::g_value_array_append(self.to_glib_none_mut().0, value.to_glib_none().0);
}
}
#[doc(alias = "g_value_array_insert")]
#[inline]
pub fn insert(&mut self, index_: usize, value: impl ToValue) {
self.insert_value(index_, &value.to_value());
}
#[doc(alias = "g_value_array_insert")]
#[inline]
pub fn insert_value(&mut self, index_: usize, value: &Value) {
assert!(index_ <= self.len());
unsafe {
gobject_ffi::g_value_array_insert(
self.to_glib_none_mut().0,
index_ as u32,
value.to_glib_none().0,
);
}
}
#[doc(alias = "g_value_array_prepend")]
#[inline]
pub fn prepend(&mut self, value: impl ToValue) {
self.prepend_value(&value.to_value());
}
#[doc(alias = "g_value_array_prepend")]
#[inline]
pub fn prepend_value(&mut self, value: &Value) {
unsafe {
gobject_ffi::g_value_array_prepend(self.to_glib_none_mut().0, value.to_glib_none().0);
}
}
#[doc(alias = "g_value_array_remove")]
#[inline]
pub fn remove(&mut self, index_: usize) {
assert!(index_ < self.len());
unsafe {
gobject_ffi::g_value_array_remove(self.to_glib_none_mut().0, index_ as u32);
}
}
#[doc(alias = "g_value_array_sort_with_data")]
pub fn sort_with_data<F: FnMut(&Value, &Value) -> Ordering>(&mut self, compare_func: F) {
unsafe extern "C" fn compare_func_trampoline(
a: ffi::gconstpointer,
b: ffi::gconstpointer,
func: ffi::gpointer,
) -> i32 {
let func = func as *mut &mut (dyn FnMut(&Value, &Value) -> Ordering);
let a = &*(a as *const Value);
let b = &*(b as *const Value);
(*func)(a, b).into_glib()
}
unsafe {
let mut func = compare_func;
let func_obj: &mut (dyn FnMut(&Value, &Value) -> Ordering) = &mut func;
let func_ptr =
&func_obj as *const &mut (dyn FnMut(&Value, &Value) -> Ordering) as ffi::gpointer;
gobject_ffi::g_value_array_sort_with_data(
self.to_glib_none_mut().0,
Some(compare_func_trampoline),
func_ptr,
);
}
}
#[inline]
pub fn as_slice(&self) -> &[Value] {
if self.is_empty() {
return &[];
}
unsafe {
slice::from_raw_parts(
(*self.as_ptr()).values as *const Value,
(*self.as_ptr()).n_values as usize,
)
}
}
#[inline]
pub fn as_mut_slice(&mut self) -> &mut [Value] {
if self.is_empty() {
return &mut [];
}
unsafe {
slice::from_raw_parts_mut(
(*self.as_ptr()).values as *mut Value,
(*self.as_ptr()).n_values as usize,
)
}
}
}
impl ops::Deref for ValueArray {
type Target = [Value];
#[inline]
fn deref(&self) -> &[Value] {
self.as_slice()
}
}
impl ops::DerefMut for ValueArray {
#[inline]
fn deref_mut(&mut self) -> &mut [Value] {
self.as_mut_slice()
}
}
impl Default for ValueArray {
fn default() -> Self {
Self::with_capacity(8)
}
}
impl std::iter::FromIterator<Value> for ValueArray {
fn from_iter<T: IntoIterator<Item = Value>>(iter: T) -> Self {
Self::from_values(iter)
}
}
impl std::iter::Extend<Value> for ValueArray {
fn extend<T: IntoIterator<Item = Value>>(&mut self, iter: T) {
for v in iter.into_iter() {
self.append_value(&v);
}
}
}
impl StaticType for ValueArray {
#[inline]
fn static_type() -> Type {
unsafe { from_glib(gobject_ffi::g_value_array_get_type()) }
}
}
#[doc(hidden)]
impl ValueType for ValueArray {
type Type = Self;
}
#[doc(hidden)]
impl crate::value::ValueTypeOptional for ValueArray {}
#[doc(hidden)]
unsafe impl<'a> crate::value::FromValue<'a> for ValueArray {
type Checker = crate::value::GenericValueTypeOrNoneChecker<Self>;
#[inline]
unsafe fn from_value(value: &'a Value) -> Self {
let ptr = gobject_ffi::g_value_dup_boxed(value.to_glib_none().0);
debug_assert!(!ptr.is_null());
from_glib_full(ptr as *mut gobject_ffi::GValueArray)
}
}
#[doc(hidden)]
unsafe impl<'a> crate::value::FromValue<'a> for &'a ValueArray {
type Checker = crate::value::GenericValueTypeOrNoneChecker<Self>;
#[inline]
unsafe fn from_value(value: &'a Value) -> Self {
debug_assert_eq!(
std::mem::size_of::<Self>(),
std::mem::size_of::<ffi::gpointer>()
);
let value = &*(value as *const Value as *const gobject_ffi::GValue);
debug_assert!(!value.data[0].v_pointer.is_null());
<ValueArray>::from_glib_ptr_borrow(
&*(&value.data[0].v_pointer as *const ffi::gpointer
as *const *mut gobject_ffi::GValueArray),
)
}
}
#[doc(hidden)]
impl ToValue for ValueArray {
#[inline]
fn to_value(&self) -> Value {
unsafe {
let mut value = Value::from_type_unchecked(<Self as StaticType>::static_type());
gobject_ffi::g_value_take_boxed(
value.to_glib_none_mut().0,
ToGlibPtr::<*mut gobject_ffi::GValueArray>::to_glib_full(self) as *mut _,
);
value
}
}
#[inline]
fn value_type(&self) -> Type {
<Self as StaticType>::static_type()
}
}
impl std::convert::From<ValueArray> for Value {
#[inline]
fn from(o: ValueArray) -> Self {
unsafe {
let mut value = Value::from_type_unchecked(<ValueArray as StaticType>::static_type());
gobject_ffi::g_value_take_boxed(
value.to_glib_none_mut().0,
IntoGlibPtr::<*mut gobject_ffi::GValueArray>::into_glib_ptr(o) as *mut _,
);
value
}
}
}
#[doc(hidden)]
impl crate::value::ToValueOptional for ValueArray {
#[inline]
fn to_value_optional(s: Option<&Self>) -> Value {
let mut value = Value::for_value_type::<Self>();
unsafe {
gobject_ffi::g_value_take_boxed(
value.to_glib_none_mut().0,
ToGlibPtr::<*mut gobject_ffi::GValueArray>::to_glib_full(&s) as *mut _,
);
}
value
}
}
impl HasParamSpec for ValueArray {
type ParamSpec = ParamSpecValueArray;
type SetValue = Self;
type BuilderFn = fn(&str) -> ParamSpecValueArrayBuilder;
fn param_spec_builder() -> Self::BuilderFn {
Self::ParamSpec::builder
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_new() {
let arr = ValueArray::new(["123", "456"]);
assert_eq!(
arr.first().and_then(|v| v.get::<String>().ok()),
Some(String::from("123"))
);
assert_eq!(
arr.get(1).and_then(|v| v.get::<String>().ok()),
Some(String::from("456"))
);
}
#[test]
fn test_append() {
let mut arr = ValueArray::default();
arr.append("123");
arr.append(123u32);
arr.append_value(&Value::from(456u64));
assert_eq!(
arr.first().and_then(|v| v.get::<String>().ok()),
Some(String::from("123"))
);
assert_eq!(arr.get(1).and_then(|v| v.get::<u32>().ok()), Some(123));
assert_eq!(arr.get(2).and_then(|v| v.get::<u64>().ok()), Some(456));
}
}