gdk 0.18.2

UNMAINTAINED Rust bindings for the GDK 3 library (use gdk4 instead)
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
157
158
159
160
161

// Take a look at the license at the top of the repository in the LICENSE file.

use crate::{Rectangle, Window, RGBA};
use cairo::Surface;
use cairo::{Context, Region};
use gdk_pixbuf::Pixbuf;
use glib::object::IsA;
use glib::translate::*;

pub trait GdkSurfaceExt {
    #[doc(alias = "gdk_cairo_region_create_from_surface")]
    fn create_region(&self) -> Option<Region>;
}

impl GdkSurfaceExt for Surface {
    fn create_region(&self) -> Option<Region> {
        unsafe {
            from_glib_full(ffi::gdk_cairo_region_create_from_surface(
                self.to_glib_none().0,
            ))
        }
    }
}

pub trait GdkPixbufExt {
    #[doc(alias = "gdk_cairo_surface_create_from_pixbuf")]
    fn create_surface<W: IsA<Window>>(&self, scale: i32, for_window: Option<&W>)
        -> Option<Surface>;
}

impl GdkPixbufExt for Pixbuf {
    fn create_surface<W: IsA<Window>>(
        &self,
        scale: i32,
        for_window: Option<&W>,
    ) -> Option<Surface> {
        unsafe {
            from_glib_full(ffi::gdk_cairo_surface_create_from_pixbuf(
                self.to_glib_none().0,
                scale,
                for_window.map(std::convert::AsRef::as_ref).to_glib_none().0,
            ))
        }
    }
}

pub trait GdkContextExt {
    fn create_from_window<W: IsA<Window>>(window: &W) -> Context;

    #[allow(clippy::too_many_arguments)]
    unsafe fn draw_from_gl<W: IsA<Window>>(
        &self,
        window: &W,
        source: i32,
        source_type: i32,
        buffer_scale: i32,
        x: i32,
        y: i32,
        width: i32,
        height: i32,
    );

    #[doc(alias = "get_clip_rectangle")]
    #[doc(alias = "gdk_cairo_get_clip_rectangle")]
    fn clip_rectangle(&self) -> Option<Rectangle>;

    #[doc(alias = "gdk_cairo_set_source_rgba")]
    fn set_source_rgba(&self, rgba: &RGBA);

    #[doc(alias = "gdk_cairo_set_source_pixbuf")]
    fn set_source_pixbuf(&self, pixbuf: &Pixbuf, x: f64, y: f64);

    #[doc(alias = "gdk_cairo_set_source_window")]
    fn set_source_window<W: IsA<Window>>(&self, window: &W, x: f64, y: f64);

    #[doc(alias = "gdk_cairo_rectangle")]
    fn rectangle(&self, rectangle: &Rectangle);

    fn add_region(&self, region: &Region);
}

impl GdkContextExt for Context {
    fn create_from_window<W: IsA<Window>>(window: &W) -> Context {
        skip_assert_initialized!();
        unsafe { from_glib_full(ffi::gdk_cairo_create(window.as_ref().to_glib_none().0)) }
    }

    unsafe fn draw_from_gl<W: IsA<Window>>(
        &self,
        window: &W,
        source: i32,
        source_type: i32,
        buffer_scale: i32,
        x: i32,
        y: i32,
        width: i32,
        height: i32,
    ) {
        skip_assert_initialized!();
        ffi::gdk_cairo_draw_from_gl(
            mut_override(self.to_glib_none().0),
            window.as_ref().to_glib_none().0,
            source,
            source_type,
            buffer_scale,
            x,
            y,
            width,
            height,
        );
    }

    fn clip_rectangle(&self) -> Option<Rectangle> {
        unsafe {
            let mut rectangle = Rectangle::uninitialized();
            if from_glib(ffi::gdk_cairo_get_clip_rectangle(
                self.to_glib_none().0,
                rectangle.to_glib_none_mut().0,
            )) {
                Some(rectangle)
            } else {
                None
            }
        }
    }

    fn set_source_rgba(&self, rgba: &RGBA) {
        unsafe {
            ffi::gdk_cairo_set_source_rgba(self.to_glib_none().0, rgba.to_glib_none().0);
        }
    }

    fn set_source_pixbuf(&self, pixbuf: &Pixbuf, x: f64, y: f64) {
        unsafe {
            ffi::gdk_cairo_set_source_pixbuf(self.to_glib_none().0, pixbuf.to_glib_none().0, x, y);
        }
    }

    fn set_source_window<W: IsA<Window>>(&self, window: &W, x: f64, y: f64) {
        unsafe {
            ffi::gdk_cairo_set_source_window(
                self.to_glib_none().0,
                window.as_ref().to_glib_none().0,
                x,
                y,
            );
        }
    }

    fn rectangle(&self, rectangle: &Rectangle) {
        unsafe {
            ffi::gdk_cairo_rectangle(self.to_glib_none().0, rectangle.to_glib_none().0);
        }
    }

    fn add_region(&self, region: &Region) {
        unsafe {
            ffi::gdk_cairo_region(self.to_glib_none().0, region.to_glib_none().0);
        }
    }
}