1use glib::translate::*;
6use pango_sys;
7#[cfg(any(feature = "v1_38", feature = "dox"))]
8use std::mem;
9
10glib_wrapper! {
11 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
12 pub struct Matrix(Boxed<pango_sys::PangoMatrix>);
13
14 match fn {
15 copy => |ptr| pango_sys::pango_matrix_copy(mut_override(ptr)),
16 free => |ptr| pango_sys::pango_matrix_free(ptr),
17 get_type => || pango_sys::pango_matrix_get_type(),
18 }
19}
20
21impl Matrix {
22 pub fn concat(&mut self, new_matrix: &Matrix) {
23 unsafe {
24 pango_sys::pango_matrix_concat(self.to_glib_none_mut().0, new_matrix.to_glib_none().0);
25 }
26 }
27
28 pub fn get_font_scale_factor(&self) -> f64 {
29 unsafe { pango_sys::pango_matrix_get_font_scale_factor(self.to_glib_none().0) }
30 }
31
32 #[cfg(any(feature = "v1_38", feature = "dox"))]
33 pub fn get_font_scale_factors(&self) -> (f64, f64) {
34 unsafe {
35 let mut xscale = mem::uninitialized();
36 let mut yscale = mem::uninitialized();
37 pango_sys::pango_matrix_get_font_scale_factors(
38 self.to_glib_none().0,
39 &mut xscale,
40 &mut yscale,
41 );
42 (xscale, yscale)
43 }
44 }
45
46 pub fn rotate(&mut self, degrees: f64) {
47 unsafe {
48 pango_sys::pango_matrix_rotate(self.to_glib_none_mut().0, degrees);
49 }
50 }
51
52 pub fn scale(&mut self, scale_x: f64, scale_y: f64) {
53 unsafe {
54 pango_sys::pango_matrix_scale(self.to_glib_none_mut().0, scale_x, scale_y);
55 }
56 }
57
58 pub fn transform_distance(&self, dx: &mut f64, dy: &mut f64) {
59 unsafe {
60 pango_sys::pango_matrix_transform_distance(self.to_glib_none().0, dx, dy);
61 }
62 }
63
64 pub fn transform_point(&self, x: &mut f64, y: &mut f64) {
69 unsafe {
70 pango_sys::pango_matrix_transform_point(self.to_glib_none().0, x, y);
71 }
72 }
73
74 pub fn translate(&mut self, tx: f64, ty: f64) {
79 unsafe {
80 pango_sys::pango_matrix_translate(self.to_glib_none_mut().0, tx, ty);
81 }
82 }
83}