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f298089f02
CGDataProviderCreateWithData just wraps the underlying buffer. The underlying buffer needs to be kept around until the data provider is freed. Adding the buffer to the FontTemplateData struct ensures it sticks around.
47 lines
1.6 KiB
Rust
47 lines
1.6 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use core_graphics::data_provider::CGDataProvider;
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use core_graphics::font::CGFont;
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use core_text::font::CTFont;
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use core_text;
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use std::borrow::ToOwned;
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/// Platform specific font representation for mac.
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/// The identifier is a PostScript font name. The
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/// CTFont object is cached here for use by the
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/// paint functions that create CGFont references.
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pub struct FontTemplateData {
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pub ctfont: Option<CTFont>,
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pub identifier: String,
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pub font_data: Option<Vec<u8>>
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}
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unsafe impl Send for FontTemplateData {}
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unsafe impl Sync for FontTemplateData {}
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impl FontTemplateData {
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pub fn new(identifier: &str, font_data: Option<Vec<u8>>) -> FontTemplateData {
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let ctfont = match font_data {
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Some(ref bytes) => {
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let fontprov = CGDataProvider::from_buffer(bytes.as_slice());
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let cgfont_result = CGFont::from_data_provider(fontprov);
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match cgfont_result {
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Ok(cgfont) => Some(core_text::font::new_from_CGFont(&cgfont, 0.0)),
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Err(_) => None
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}
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},
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None => {
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Some(core_text::font::new_from_name(identifier.as_slice(), 0.0).unwrap())
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}
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};
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FontTemplateData {
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ctfont: ctfont,
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identifier: identifier.to_owned(),
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font_data: font_data
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}
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}
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}
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