skia_safe/effects/
high_contrast_filter.rs1use crate::{high_contrast_config::InvertStyle, prelude::*, scalar, ColorFilter};
2use skia_bindings::{self as sb, SkHighContrastConfig};
3
4pub mod high_contrast_config {
5 pub use skia_bindings::SkHighContrastConfig_InvertStyle as InvertStyle;
6 #[test]
7 fn invert_style_naming() {
8 let _ = InvertStyle::InvertLightness;
9 }
10}
11
12#[repr(C)]
13#[derive(Clone, PartialEq, Debug)]
14pub struct HighContrastConfig {
15 pub grayscale: bool,
16 pub invert_style: InvertStyle,
17 pub contrast: scalar,
18}
19
20native_transmutable!(SkHighContrastConfig, HighContrastConfig);
21
22impl Default for HighContrastConfig {
23 fn default() -> Self {
24 Self {
25 grayscale: false,
26 invert_style: InvertStyle::NoInvert,
27 contrast: 0.0,
28 }
29 }
30}
31
32impl HighContrastConfig {
33 pub fn new(grayscale: bool, invert_style: InvertStyle, contrast: scalar) -> Self {
34 Self {
35 grayscale,
36 invert_style,
37 contrast,
38 }
39 }
40
41 pub fn is_valid(&self) -> bool {
42 self.contrast >= -1.0 && self.contrast <= 1.0
43 }
44}
45
46impl ColorFilter {
47 pub fn high_contrast(config: &HighContrastConfig) -> Option<Self> {
48 new(config)
49 }
50}
51
52pub fn new(config: &HighContrastConfig) -> Option<ColorFilter> {
53 ColorFilter::from_ptr(unsafe { sb::C_SkHighContrastFilter_Make(config.native()) })
54}