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use glib::object::IsA;
use glib::translate::*;
use pango_sys;
use std::fmt;
use std::mem;
use std::ptr;
use Context;
use Font;
use FontDescription;
use FontFamily;
use Fontset;
use Language;
glib_wrapper! {
pub struct FontMap(Object<pango_sys::PangoFontMap, pango_sys::PangoFontMapClass, FontMapClass>);
match fn {
get_type => || pango_sys::pango_font_map_get_type(),
}
}
pub const NONE_FONT_MAP: Option<&FontMap> = None;
pub trait FontMapExt: 'static {
fn changed(&self);
fn create_context(&self) -> Option<Context>;
fn get_serial(&self) -> u32;
fn list_families(&self) -> Vec<FontFamily>;
fn load_font(&self, context: &Context, desc: &FontDescription) -> Option<Font>;
fn load_fontset(
&self,
context: &Context,
desc: &FontDescription,
language: &Language,
) -> Option<Fontset>;
}
impl<O: IsA<FontMap>> FontMapExt for O {
fn changed(&self) {
unsafe {
pango_sys::pango_font_map_changed(self.as_ref().to_glib_none().0);
}
}
fn create_context(&self) -> Option<Context> {
unsafe {
from_glib_full(pango_sys::pango_font_map_create_context(
self.as_ref().to_glib_none().0,
))
}
}
fn get_serial(&self) -> u32 {
unsafe { pango_sys::pango_font_map_get_serial(self.as_ref().to_glib_none().0) }
}
fn list_families(&self) -> Vec<FontFamily> {
unsafe {
let mut families = ptr::null_mut();
let mut n_families = mem::MaybeUninit::uninit();
pango_sys::pango_font_map_list_families(
self.as_ref().to_glib_none().0,
&mut families,
n_families.as_mut_ptr(),
);
FromGlibContainer::from_glib_container_num(families, n_families.assume_init() as usize)
}
}
fn load_font(&self, context: &Context, desc: &FontDescription) -> Option<Font> {
unsafe {
from_glib_full(pango_sys::pango_font_map_load_font(
self.as_ref().to_glib_none().0,
context.to_glib_none().0,
desc.to_glib_none().0,
))
}
}
fn load_fontset(
&self,
context: &Context,
desc: &FontDescription,
language: &Language,
) -> Option<Fontset> {
unsafe {
from_glib_full(pango_sys::pango_font_map_load_fontset(
self.as_ref().to_glib_none().0,
context.to_glib_none().0,
desc.to_glib_none().0,
mut_override(language.to_glib_none().0),
))
}
}
}
impl fmt::Display for FontMap {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "FontMap")
}
}