1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::FontDescription;
#[cfg(any(feature = "v1_46", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_46")))]
use crate::FontFamily;
use glib::object::IsA;
use glib::translate::*;
use std::fmt;
use std::mem;
use std::ptr;

glib::wrapper! {
    /// The [`FontFace`][crate::FontFace] structure is used to represent a group of fonts with
    /// the same family, slant, weight, width, but varying sizes.
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// # Implements
    ///
    /// [`FontFaceExt`][trait@crate::prelude::FontFaceExt]
    #[doc(alias = "PangoFontFace")]
    pub struct FontFace(Object<ffi::PangoFontFace, ffi::PangoFontFaceClass>);

    match fn {
        type_ => || ffi::pango_font_face_get_type(),
    }
}

pub const NONE_FONT_FACE: Option<&FontFace> = None;

/// Trait containing all [`struct@FontFace`] methods.
///
/// # Implementors
///
/// [`FontFace`][struct@crate::FontFace]
pub trait FontFaceExt: 'static {
    /// Returns the family, style, variant, weight and stretch of
    /// a [`FontFace`][crate::FontFace]. The size field of the resulting font description
    /// will be unset.
    ///
    /// # Returns
    ///
    /// a newly-created [`FontDescription`][crate::FontDescription] structure
    ///  holding the description of the face. Use `pango_font_description_free()`
    ///  to free the result.
    #[doc(alias = "pango_font_face_describe")]
    fn describe(&self) -> Option<FontDescription>;

    /// Gets a name representing the style of this face among the
    /// different faces in the [`FontFamily`][crate::FontFamily] for the face. This
    /// name is unique among all faces in the family and is suitable
    /// for displaying to users.
    ///
    /// # Returns
    ///
    /// the face name for the face. This string is
    ///  owned by the face object and must not be modified or freed.
    #[doc(alias = "pango_font_face_get_face_name")]
    #[doc(alias = "get_face_name")]
    fn face_name(&self) -> Option<glib::GString>;

    /// Gets the [`FontFamily`][crate::FontFamily] that `self`
    /// belongs to.
    ///
    /// # Returns
    ///
    /// the [`FontFamily`][crate::FontFamily]
    #[cfg(any(feature = "v1_46", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_46")))]
    #[doc(alias = "pango_font_face_get_family")]
    #[doc(alias = "get_family")]
    fn family(&self) -> Option<FontFamily>;

    /// Returns whether a [`FontFace`][crate::FontFace] is synthesized by the underlying
    /// font rendering engine from another face, perhaps by shearing, emboldening,
    /// or lightening it.
    ///
    /// # Returns
    ///
    /// whether `self` is synthesized.
    #[doc(alias = "pango_font_face_is_synthesized")]
    fn is_synthesized(&self) -> bool;

    /// List the available sizes for a font. This is only applicable to bitmap
    /// fonts. For scalable fonts, stores [`None`] at the location pointed to by
    /// `sizes` and 0 at the location pointed to by `n_sizes`. The sizes returned
    /// are in Pango units and are sorted in ascending order.
    ///
    /// # Returns
    ///
    ///
    /// ## `sizes`
    ///
    ///  location to store a pointer to an array of int. This array
    ///  should be freed with `g_free()`.
    #[doc(alias = "pango_font_face_list_sizes")]
    fn list_sizes(&self) -> Vec<i32>;
}

impl<O: IsA<FontFace>> FontFaceExt for O {
    fn describe(&self) -> Option<FontDescription> {
        unsafe {
            from_glib_full(ffi::pango_font_face_describe(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn face_name(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::pango_font_face_get_face_name(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    #[cfg(any(feature = "v1_46", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_46")))]
    fn family(&self) -> Option<FontFamily> {
        unsafe {
            from_glib_none(ffi::pango_font_face_get_family(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_synthesized(&self) -> bool {
        unsafe {
            from_glib(ffi::pango_font_face_is_synthesized(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn list_sizes(&self) -> Vec<i32> {
        unsafe {
            let mut sizes = ptr::null_mut();
            let mut n_sizes = mem::MaybeUninit::uninit();
            ffi::pango_font_face_list_sizes(
                self.as_ref().to_glib_none().0,
                &mut sizes,
                n_sizes.as_mut_ptr(),
            );
            FromGlibContainer::from_glib_full_num(sizes, n_sizes.assume_init() as usize)
        }
    }
}

impl fmt::Display for FontFace {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("FontFace")
    }
}