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|
/*
* fontconfig/fc-fontations/pattern_bindings/fc_wrapper.rs
*
* Copyright 2025 Google LLC.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the author(s) not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. The authors make no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
use fontconfig_bindings::{FcLangSet, FcLangSetCopy, FcLangSetCreate, FcLangSetDestroy};
use fcint_bindings::{
FcCharSet, FcCharSetAddChar, FcCharSetCopy, FcCharSetCreate, FcCharSetDestroy, FcPattern,
FcPatternCreate, FcPatternDestroy, FcRange, FcRangeCopy, FcRangeCreateDouble, FcRangeDestroy,
};
macro_rules! wrap_fc_object {
(
$wrapper_name:ident,
$wrapped_type:ident,
$destroy_fn:ident
$(, $copy_fn:ident)?
) => {
#[allow(unused)]
#[derive(Debug)]
pub struct $wrapper_name {
inner: *mut $wrapped_type,
}
impl $wrapper_name {
#[allow(unused)]
pub fn from_raw(ptr: *mut $wrapped_type) -> Self {
Self { inner: ptr }
}
#[allow(unused)]
pub fn into_raw(self) -> *mut $wrapped_type {
let ptr = self.inner;
std::mem::forget(self);
ptr
}
#[allow(unused)]
pub fn as_ptr(&self) -> *mut $wrapped_type {
assert!(!self.inner.is_null());
self.inner
}
}
impl Drop for $wrapper_name {
fn drop(&mut self) {
unsafe {
$destroy_fn(self.inner);
}
}
}
$(
impl Clone for $wrapper_name {
fn clone(&self) -> Self {
Self {
inner: unsafe { $copy_fn(self.inner) },
}
}
}
)?
};
}
wrap_fc_object! {
FcRangeWrapper,
FcRange,
FcRangeDestroy,
FcRangeCopy
}
impl FcRangeWrapper {
#[allow(unused)]
pub fn new(min: f64, max: f64) -> Option<Self> {
unsafe {
let ptr = FcRangeCreateDouble(min, max);
if ptr.is_null() {
None
} else {
Some(Self { inner: ptr })
}
}
}
}
wrap_fc_object! {
FcPatternWrapper,
FcPattern,
FcPatternDestroy
}
impl FcPatternWrapper {
#[allow(unused)]
pub fn new() -> Option<Self> {
// Corrected new function for FcPattern
unsafe {
let ptr = FcPatternCreate();
if ptr.is_null() {
None
} else {
Some(Self { inner: ptr })
}
}
}
}
wrap_fc_object! {
FcCharSetWrapper,
FcCharSet,
FcCharSetDestroy,
FcCharSetCopy
}
impl FcCharSetWrapper {
pub fn new() -> Option<Self> {
let created_charset: *mut FcCharSet;
unsafe {
created_charset = FcCharSetCreate();
}
if created_charset.is_null() {
None
} else {
Some(Self {
inner: created_charset,
})
}
}
pub fn add_char(&mut self, char: u32) -> Result<(), ()> {
unsafe {
if FcCharSetAddChar(self.as_ptr(), char) == 1 {
Ok(())
} else {
Err(())
}
}
}
}
wrap_fc_object! {
FcLangSetWrapper,
FcLangSet,
FcLangSetDestroy,
FcLangSetCopy
}
impl FcLangSetWrapper {
#[allow(unused)]
pub fn new() -> Option<Self> {
let created_langset: *mut fontconfig_bindings::FcLangSet;
unsafe {
created_langset = FcLangSetCreate();
}
if created_langset.is_null() {
None
} else {
Some(Self {
inner: created_langset,
})
}
}
pub fn is_null(&self) -> bool {
self.inner.is_null()
}
}
|
