pango/auto/
fontset.rs

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1// This file was generated by gir (https://github.com/gtk-rs/gir)
2// from gir-files (https://github.com/gtk-rs/gir-files)
3// DO NOT EDIT
4
5use crate::{ffi, Font, FontMetrics};
6use glib::{prelude::*, translate::*};
7
8glib::wrapper! {
9    /// A [`Fontset`][crate::Fontset] represents a set of [`Font`][crate::Font] to use when rendering text.
10    ///
11    /// A [`Fontset`][crate::Fontset] is the result of resolving a [`FontDescription`][crate::FontDescription]
12    /// against a particular [`Context`][crate::Context]. It has operations for finding the
13    /// component font for a particular Unicode character, and for finding a
14    /// composite set of metrics for the entire fontset.
15    ///
16    /// This is an Abstract Base Class, you cannot instantiate it.
17    ///
18    /// # Implements
19    ///
20    /// [`FontsetExt`][trait@crate::prelude::FontsetExt]
21    #[doc(alias = "PangoFontset")]
22    pub struct Fontset(Object<ffi::PangoFontset, ffi::PangoFontsetClass>);
23
24    match fn {
25        type_ => || ffi::pango_fontset_get_type(),
26    }
27}
28
29impl Fontset {
30    pub const NONE: Option<&'static Fontset> = None;
31}
32
33/// Trait containing all [`struct@Fontset`] methods.
34///
35/// # Implementors
36///
37/// [`FontsetSimple`][struct@crate::FontsetSimple], [`Fontset`][struct@crate::Fontset]
38pub trait FontsetExt: IsA<Fontset> + 'static {
39    /// Iterates through all the fonts in a fontset, calling @func for
40    /// each one.
41    ///
42    /// If @func returns [`true`], that stops the iteration.
43    /// ## `func`
44    /// Callback function
45    #[doc(alias = "pango_fontset_foreach")]
46    fn foreach<P: FnMut(&Fontset, &Font) -> bool>(&self, func: P) {
47        let mut func_data: P = func;
48        unsafe extern "C" fn func_func<P: FnMut(&Fontset, &Font) -> bool>(
49            fontset: *mut ffi::PangoFontset,
50            font: *mut ffi::PangoFont,
51            user_data: glib::ffi::gpointer,
52        ) -> glib::ffi::gboolean {
53            let fontset = from_glib_borrow(fontset);
54            let font = from_glib_borrow(font);
55            let callback = user_data as *mut P;
56            (*callback)(&fontset, &font).into_glib()
57        }
58        let func = Some(func_func::<P> as _);
59        let super_callback0: &mut P = &mut func_data;
60        unsafe {
61            ffi::pango_fontset_foreach(
62                self.as_ref().to_glib_none().0,
63                func,
64                super_callback0 as *mut _ as *mut _,
65            );
66        }
67    }
68
69    /// Returns the font in the fontset that contains the best
70    /// glyph for a Unicode character.
71    /// ## `wc`
72    /// a Unicode character
73    ///
74    /// # Returns
75    ///
76    /// a [`Font`][crate::Font]
77    #[doc(alias = "pango_fontset_get_font")]
78    #[doc(alias = "get_font")]
79    fn font(&self, wc: u32) -> Font {
80        unsafe {
81            from_glib_full(ffi::pango_fontset_get_font(
82                self.as_ref().to_glib_none().0,
83                wc,
84            ))
85        }
86    }
87
88    /// Get overall metric information for the fonts in the fontset.
89    ///
90    /// # Returns
91    ///
92    /// a [`FontMetrics`][crate::FontMetrics] object
93    #[doc(alias = "pango_fontset_get_metrics")]
94    #[doc(alias = "get_metrics")]
95    fn metrics(&self) -> FontMetrics {
96        unsafe {
97            from_glib_full(ffi::pango_fontset_get_metrics(
98                self.as_ref().to_glib_none().0,
99            ))
100        }
101    }
102}
103
104impl<O: IsA<Fontset>> FontsetExt for O {}
pango/auto/fontset.rs

pango/auto/
fontset.rs
