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use glib::object::IsA;
use glib::translate::*;
use pango_sys;
use std::fmt;
use Coverage;
use EngineShape;
use FontDescription;
use FontMap;
use FontMetrics;
use Glyph;
use Language;
use Rectangle;
glib_wrapper! {
pub struct Font(Object<pango_sys::PangoFont, pango_sys::PangoFontClass, FontClass>);
match fn {
get_type => || pango_sys::pango_font_get_type(),
}
}
pub const NONE_FONT: Option<&Font> = None;
pub trait FontExt: 'static {
fn describe(&self) -> Option<FontDescription>;
fn describe_with_absolute_size(&self) -> Option<FontDescription>;
fn find_shaper(&self, language: &Language, ch: u32) -> Option<EngineShape>;
fn get_coverage(&self, language: &Language) -> Option<Coverage>;
fn get_font_map(&self) -> Option<FontMap>;
fn get_glyph_extents(&self, glyph: Glyph) -> (Rectangle, Rectangle);
fn get_metrics(&self, language: Option<&Language>) -> Option<FontMetrics>;
}
impl<O: IsA<Font>> FontExt for O {
fn describe(&self) -> Option<FontDescription> {
unsafe {
from_glib_full(pango_sys::pango_font_describe(
self.as_ref().to_glib_none().0,
))
}
}
fn describe_with_absolute_size(&self) -> Option<FontDescription> {
unsafe {
from_glib_full(pango_sys::pango_font_describe_with_absolute_size(
self.as_ref().to_glib_none().0,
))
}
}
fn find_shaper(&self, language: &Language, ch: u32) -> Option<EngineShape> {
unsafe {
from_glib_none(pango_sys::pango_font_find_shaper(
self.as_ref().to_glib_none().0,
mut_override(language.to_glib_none().0),
ch,
))
}
}
fn get_coverage(&self, language: &Language) -> Option<Coverage> {
unsafe {
from_glib_full(pango_sys::pango_font_get_coverage(
self.as_ref().to_glib_none().0,
mut_override(language.to_glib_none().0),
))
}
}
fn get_font_map(&self) -> Option<FontMap> {
unsafe {
from_glib_none(pango_sys::pango_font_get_font_map(
self.as_ref().to_glib_none().0,
))
}
}
fn get_glyph_extents(&self, glyph: Glyph) -> (Rectangle, Rectangle) {
unsafe {
let mut ink_rect = Rectangle::uninitialized();
let mut logical_rect = Rectangle::uninitialized();
pango_sys::pango_font_get_glyph_extents(
self.as_ref().to_glib_none().0,
glyph,
ink_rect.to_glib_none_mut().0,
logical_rect.to_glib_none_mut().0,
);
(ink_rect, logical_rect)
}
}
fn get_metrics(&self, language: Option<&Language>) -> Option<FontMetrics> {
unsafe {
from_glib_full(pango_sys::pango_font_get_metrics(
self.as_ref().to_glib_none().0,
mut_override(language.to_glib_none().0),
))
}
}
}
impl fmt::Display for Font {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Font")
}
}