cairo-rs 0.6.0

Rust bindings for the Cairo library
Documentation 
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

#[cfg(feature = "use_glib")]
use glib::translate::*;
use libc::c_char;
use ffi;
use std::ffi::{CString, CStr};

use ::enums::{
    FontSlant,
    FontType,
    FontWeight,
    FtSynthesize,
    Status,
};

#[cfg(feature = "use_glib")]
glib_wrapper! {
    #[derive(Debug)]
    pub struct FontFace(Shared<ffi::cairo_font_face_t>);

    match fn {
        ref => |ptr| ffi::cairo_font_face_reference(ptr),
        unref => |ptr| ffi::cairo_font_face_destroy(ptr),
        get_type => || ffi::gobject::cairo_gobject_font_face_get_type(),
    }
}

#[cfg(not(feature = "use_glib"))]
#[derive(Debug)]
pub struct FontFace(*mut ffi::cairo_font_face_t);

impl FontFace {
    pub fn toy_create(family: &str, slant: FontSlant, weight: FontWeight) -> FontFace {
        let font_face: FontFace = unsafe {
            let family = CString::new(family).unwrap();
            FontFace::from_raw_full(ffi::cairo_toy_font_face_create(family.as_ptr(),
                                                                    slant.into(),
                                                                    weight.into()))
        };
        font_face.ensure_status();
        font_face
    }

    #[cfg(feature = "use_glib")]
    pub unsafe fn from_raw_full(ptr: *mut ffi::cairo_font_face_t) -> FontFace {
        from_glib_full(ptr)
    }

    #[cfg(not(feature = "use_glib"))]
    pub unsafe fn from_raw_full(ptr: *mut ffi::cairo_font_face_t) -> FontFace {
        assert!(!ptr.is_null());
        FontFace(ptr)
    }

    #[cfg(feature = "use_glib")]
    pub unsafe fn from_raw_none(ptr: *mut ffi::cairo_font_face_t) -> FontFace {
        from_glib_none(ptr)
    }

    #[cfg(not(feature = "use_glib"))]
    pub unsafe fn from_raw_none(ptr: *mut ffi::cairo_font_face_t) -> FontFace {
        assert!(!ptr.is_null());
        FontFace(ptr)
    }

    #[cfg(feature = "use_glib")]
    pub fn to_raw_none(&self) -> *mut ffi::cairo_font_face_t {
        self.to_glib_none().0
    }

    #[cfg(not(feature = "use_glib"))]
    pub fn to_raw_none(&self) -> *mut ffi::cairo_font_face_t {
        self.0
    }

    pub fn toy_get_family(&self) -> Option<String> {
        unsafe {
            to_optional_string(ffi::cairo_toy_font_face_get_family(self.to_raw_none()))
        }
    }

    pub fn toy_get_slant(&self) -> FontSlant {
        unsafe {
            FontSlant::from(ffi::cairo_toy_font_face_get_slant(self.to_raw_none()))
        }
    }

    pub fn toy_get_weight(&self) -> FontWeight {
        unsafe {
            FontWeight::from(ffi::cairo_toy_font_face_get_weight(self.to_raw_none()))
        }
    }

    pub fn ensure_status(&self) {
        let status = unsafe {
            ffi::cairo_font_face_status(self.to_raw_none())
        };
        Status::from(status).ensure_valid()
    }

    pub fn get_type(&self) -> FontType {
        unsafe {
            FontType::from(ffi::cairo_font_face_get_type(self.to_raw_none()))
        }
    }

    pub fn get_reference_count(&self) -> usize {
        unsafe {
            ffi::cairo_font_face_get_reference_count(self.to_raw_none()) as usize
        }
    }

    pub fn get_synthesize(&self) -> FtSynthesize {
        unsafe {
            FtSynthesize::from(ffi::cairo_ft_font_face_get_synthesize(self.to_raw_none()))
        }
    }

    pub fn set_synthesize(&self, synth_flags: FtSynthesize) {
        unsafe {
            ffi::cairo_ft_font_face_set_synthesize(self.to_raw_none(), synth_flags.into())
        }
    }

    pub fn unset_synthesize(&self, synth_flags: FtSynthesize) {
        unsafe {
            ffi::cairo_ft_font_face_unset_synthesize(self.to_raw_none(), synth_flags.into())
        }
    }
}

#[cfg(not(feature = "use_glib"))]
impl Drop for FontFace {
    fn drop(&mut self) {
        unsafe {
            ffi::cairo_font_face_destroy(self.to_raw_none());
        }
    }
}

#[cfg(not(feature = "use_glib"))]
impl Clone for FontFace {
    fn clone(&self) -> FontFace {
        unsafe {
            FontFace::from_raw_none(self.to_raw_none())
        }
    }
}

pub(crate) unsafe fn to_optional_string(str: *const c_char) -> Option<String> {
    if str.is_null() {
        None
    } else {
        Some(String::from_utf8_lossy(CStr::from_ptr(str).to_bytes()).into_owned())
    }
}