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755cd66398
This reverts commit000d95670band commitd764796e0cto fix arm cross build and x86-64 linux. Let's use the core::ffi types when fontconfig-sys switches to it.
79 lines
2.6 KiB
Rust
79 lines
2.6 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint-ui.com>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial
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use fontconfig_sys as ffi;
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use fontconfig_sys::ffi_dispatch;
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#[cfg(feature = "fontconfig-dlopen")]
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use ffi::statics::LIB;
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#[cfg(not(feature = "fontconfig-dlopen"))]
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use ffi::*;
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// This is duplicated in the slint-compiler's glyph embedding code
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pub fn find_families(requested_family: &str) -> Vec<String> {
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#[allow(unsafe_code)]
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unsafe {
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let config = ffi_dispatch!(feature = "fontconfig-dlopen", LIB, FcInitLoadConfigAndFonts,);
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let family_cstr = std::ffi::CString::new(requested_family).unwrap();
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let pattern = ffi_dispatch!(
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feature = "fontconfig-dlopen",
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LIB,
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FcNameParse,
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family_cstr.as_ptr() as *mut libc::c_uchar
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);
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ffi_dispatch!(
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feature = "fontconfig-dlopen",
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LIB,
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FcConfigSubstitute,
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std::ptr::null_mut(),
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pattern,
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ffi::FcMatchPattern
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);
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ffi_dispatch!(feature = "fontconfig-dlopen", LIB, FcDefaultSubstitute, pattern);
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let mut sort_result = ffi::FcResultMatch;
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let result_set = ffi_dispatch!(
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feature = "fontconfig-dlopen",
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LIB,
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FcFontSort,
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config,
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pattern,
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1,
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std::ptr::null_mut(),
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&mut sort_result
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);
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let mut families = Vec::new();
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for idx in 0..(*result_set).nfont {
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let mut raw_family_name = std::ptr::null_mut();
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if ffi_dispatch!(
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feature = "fontconfig-dlopen",
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LIB,
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FcPatternGetString,
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*(*result_set).fonts.offset(idx as isize),
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b"family\0".as_ptr() as *const libc::c_char,
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0,
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&mut raw_family_name
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) != ffi::FcResultMatch
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{
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continue;
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}
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if raw_family_name.is_null() {
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continue;
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}
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if let Some(family_name) =
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std::ffi::CStr::from_ptr(raw_family_name as *const libc::c_char)
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.to_str()
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.ok()
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.map(|raw_family_name| raw_family_name.to_owned())
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{
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families.push(family_name)
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}
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}
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ffi_dispatch!(feature = "fontconfig-dlopen", LIB, FcFontSetDestroy, result_set);
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ffi_dispatch!(feature = "fontconfig-dlopen", LIB, FcPatternDestroy, pattern);
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ffi_dispatch!(feature = "fontconfig-dlopen", LIB, FcConfigDestroy, config);
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families
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}
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}
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