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Increase precision in color_palette example

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This commit is contained in:
Héctor Ramón Jiménez 2020-06-13 14:50:21 +02:00
parent 3cc32abc7c
commit d7d2e0a8aa
1 changed files with 22 additions and 16 deletions
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38
examples/color_palette/src/main.rs
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@ -269,7 +269,7 @@ struct ColorPicker<C: ColorSpace> {
trait ColorSpace: Sized {
const LABEL: &'static str;
const COMPONENT_RANGES: [RangeInclusive<f32>; 3];
const COMPONENT_RANGES: [RangeInclusive<f64>; 3];
fn new(a: f32, b: f32, c: f32) -> Self;
@ -284,19 +284,25 @@ impl<C: 'static + ColorSpace + Copy> ColorPicker<C> {
let [s1, s2, s3] = &mut self.sliders;
let [cr1, cr2, cr3] = C::COMPONENT_RANGES;
fn slider<C>(
state: &mut slider::State,
range: RangeInclusive<f64>,
component: f32,
update: impl Fn(f32) -> C + 'static,
) -> Slider<f64, C> {
Slider::new(state, range, f64::from(component), move |v| {
update(v as f32)
})
.step(0.01)
}
Row::new()
.spacing(10)
.align_items(Align::Center)
.push(Text::new(C::LABEL).width(Length::Units(50)))
.push(
Slider::new(s1, cr1, c1, move |v| C::new(v, c2, c3)).step(0.01),
)
.push(
Slider::new(s2, cr2, c2, move |v| C::new(c1, v, c3)).step(0.01),
)
.push(
Slider::new(s3, cr3, c3, move |v| C::new(c1, c2, v)).step(0.01),
)
.push(slider(s1, cr1, c1, move |v| C::new(v, c2, c3)))
.push(slider(s2, cr2, c2, move |v| C::new(c1, v, c3)))
.push(slider(s3, cr3, c3, move |v| C::new(c1, c2, v)))
.push(
Text::new(color.to_string())
.width(Length::Units(185))
@ -308,7 +314,7 @@ impl<C: 'static + ColorSpace + Copy> ColorPicker<C> {
impl ColorSpace for Color {
const LABEL: &'static str = "RGB";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=1.0, 0.0..=1.0, 0.0..=1.0];
fn new(r: f32, g: f32, b: f32) -> Self {
@ -331,7 +337,7 @@ impl ColorSpace for Color {
impl ColorSpace for palette::Hsl {
const LABEL: &'static str = "HSL";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=360.0, 0.0..=1.0, 0.0..=1.0];
fn new(hue: f32, saturation: f32, lightness: f32) -> Self {
@ -362,7 +368,7 @@ impl ColorSpace for palette::Hsl {
impl ColorSpace for palette::Hsv {
const LABEL: &'static str = "HSV";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=360.0, 0.0..=1.0, 0.0..=1.0];
fn new(hue: f32, saturation: f32, value: f32) -> Self {
@ -385,7 +391,7 @@ impl ColorSpace for palette::Hsv {
impl ColorSpace for palette::Hwb {
const LABEL: &'static str = "HWB";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=360.0, 0.0..=1.0, 0.0..=1.0];
fn new(hue: f32, whiteness: f32, blackness: f32) -> Self {
@ -416,7 +422,7 @@ impl ColorSpace for palette::Hwb {
impl ColorSpace for palette::Lab {
const LABEL: &'static str = "Lab";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=100.0, -128.0..=127.0, -128.0..=127.0];
fn new(l: f32, a: f32, b: f32) -> Self {
@ -434,7 +440,7 @@ impl ColorSpace for palette::Lab {
impl ColorSpace for palette::Lch {
const LABEL: &'static str = "Lch";
const COMPONENT_RANGES: [RangeInclusive<f32>; 3] =
const COMPONENT_RANGES: [RangeInclusive<f64>; 3] =
[0.0..=100.0, 0.0..=128.0, 0.0..=360.0];
fn new(l: f32, chroma: f32, hue: f32) -> Self {