Remove 2 suffix from gpui
Co-authored-by: Mikayla <mikayla@zed.dev>
This commit is contained in:
Max Brunsfeld
parent
3c81dda8e2
commit
f5ba22659b
225 changed files with 8511 additions and 41063 deletions
792
crates/gpui/src/style.rs
Normal file
792
crates/gpui/src/style.rs
Normal file
|
|
@ -0,0 +1,792 @@
|
|||
use std::{iter, mem, ops::Range};
|
||||
|
||||
use crate::{
|
||||
black, phi, point, quad, rems, AbsoluteLength, BorrowWindow, Bounds, ContentMask, Corners,
|
||||
CornersRefinement, CursorStyle, DefiniteLength, Edges, EdgesRefinement, Font, FontFeatures,
|
||||
FontStyle, FontWeight, Hsla, Length, Pixels, Point, PointRefinement, Rgba, SharedString, Size,
|
||||
SizeRefinement, Styled, TextRun, WindowContext,
|
||||
};
|
||||
use collections::HashSet;
|
||||
use refineable::{Cascade, Refineable};
|
||||
use smallvec::SmallVec;
|
||||
pub use taffy::style::{
|
||||
AlignContent, AlignItems, AlignSelf, Display, FlexDirection, FlexWrap, JustifyContent,
|
||||
Overflow, Position,
|
||||
};
|
||||
|
||||
#[cfg(debug_assertions)]
|
||||
pub struct DebugBelow;
|
||||
|
||||
pub type StyleCascade = Cascade<Style>;
|
||||
|
||||
#[derive(Clone, Refineable, Debug)]
|
||||
#[refineable(Debug)]
|
||||
pub struct Style {
|
||||
/// What layout strategy should be used?
|
||||
pub display: Display,
|
||||
|
||||
/// Should the element be painted on screen?
|
||||
pub visibility: Visibility,
|
||||
|
||||
// Overflow properties
|
||||
/// How children overflowing their container should affect layout
|
||||
#[refineable]
|
||||
pub overflow: Point<Overflow>,
|
||||
/// How much space (in points) should be reserved for the scrollbars of `Overflow::Scroll` and `Overflow::Auto` nodes.
|
||||
pub scrollbar_width: f32,
|
||||
|
||||
// Position properties
|
||||
/// What should the `position` value of this struct use as a base offset?
|
||||
pub position: Position,
|
||||
/// How should the position of this element be tweaked relative to the layout defined?
|
||||
#[refineable]
|
||||
pub inset: Edges<Length>,
|
||||
|
||||
// Size properies
|
||||
/// Sets the initial size of the item
|
||||
#[refineable]
|
||||
pub size: Size<Length>,
|
||||
/// Controls the minimum size of the item
|
||||
#[refineable]
|
||||
pub min_size: Size<Length>,
|
||||
/// Controls the maximum size of the item
|
||||
#[refineable]
|
||||
pub max_size: Size<Length>,
|
||||
/// Sets the preferred aspect ratio for the item. The ratio is calculated as width divided by height.
|
||||
pub aspect_ratio: Option<f32>,
|
||||
|
||||
// Spacing Properties
|
||||
/// How large should the margin be on each side?
|
||||
#[refineable]
|
||||
pub margin: Edges<Length>,
|
||||
/// How large should the padding be on each side?
|
||||
#[refineable]
|
||||
pub padding: Edges<DefiniteLength>,
|
||||
/// How large should the border be on each side?
|
||||
#[refineable]
|
||||
pub border_widths: Edges<AbsoluteLength>,
|
||||
|
||||
// Alignment properties
|
||||
/// How this node's children aligned in the cross/block axis?
|
||||
pub align_items: Option<AlignItems>,
|
||||
/// How this node should be aligned in the cross/block axis. Falls back to the parents [`AlignItems`] if not set
|
||||
pub align_self: Option<AlignSelf>,
|
||||
/// How should content contained within this item be aligned in the cross/block axis
|
||||
pub align_content: Option<AlignContent>,
|
||||
/// How should contained within this item be aligned in the main/inline axis
|
||||
pub justify_content: Option<JustifyContent>,
|
||||
/// How large should the gaps between items in a flex container be?
|
||||
#[refineable]
|
||||
pub gap: Size<DefiniteLength>,
|
||||
|
||||
// Flexbox properies
|
||||
/// Which direction does the main axis flow in?
|
||||
pub flex_direction: FlexDirection,
|
||||
/// Should elements wrap, or stay in a single line?
|
||||
pub flex_wrap: FlexWrap,
|
||||
/// Sets the initial main axis size of the item
|
||||
pub flex_basis: Length,
|
||||
/// The relative rate at which this item grows when it is expanding to fill space, 0.0 is the default value, and this value must be positive.
|
||||
pub flex_grow: f32,
|
||||
/// The relative rate at which this item shrinks when it is contracting to fit into space, 1.0 is the default value, and this value must be positive.
|
||||
pub flex_shrink: f32,
|
||||
|
||||
/// The fill color of this element
|
||||
pub background: Option<Fill>,
|
||||
|
||||
/// The border color of this element
|
||||
pub border_color: Option<Hsla>,
|
||||
|
||||
/// The radius of the corners of this element
|
||||
#[refineable]
|
||||
pub corner_radii: Corners<AbsoluteLength>,
|
||||
|
||||
/// Box Shadow of the element
|
||||
pub box_shadow: SmallVec<[BoxShadow; 2]>,
|
||||
|
||||
/// TEXT
|
||||
pub text: TextStyleRefinement,
|
||||
|
||||
/// The mouse cursor style shown when the mouse pointer is over an element.
|
||||
pub mouse_cursor: Option<CursorStyle>,
|
||||
|
||||
pub z_index: Option<u8>,
|
||||
|
||||
#[cfg(debug_assertions)]
|
||||
pub debug: bool,
|
||||
#[cfg(debug_assertions)]
|
||||
pub debug_below: bool,
|
||||
}
|
||||
|
||||
impl Styled for StyleRefinement {
|
||||
fn style(&mut self) -> &mut StyleRefinement {
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Default, Clone, Copy, Debug, Eq, PartialEq)]
|
||||
pub enum Visibility {
|
||||
#[default]
|
||||
Visible,
|
||||
Hidden,
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub struct BoxShadow {
|
||||
pub color: Hsla,
|
||||
pub offset: Point<Pixels>,
|
||||
pub blur_radius: Pixels,
|
||||
pub spread_radius: Pixels,
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
|
||||
pub enum WhiteSpace {
|
||||
#[default]
|
||||
Normal,
|
||||
Nowrap,
|
||||
}
|
||||
|
||||
#[derive(Refineable, Clone, Debug)]
|
||||
#[refineable(Debug)]
|
||||
pub struct TextStyle {
|
||||
pub color: Hsla,
|
||||
pub font_family: SharedString,
|
||||
pub font_features: FontFeatures,
|
||||
pub font_size: AbsoluteLength,
|
||||
pub line_height: DefiniteLength,
|
||||
pub font_weight: FontWeight,
|
||||
pub font_style: FontStyle,
|
||||
pub background_color: Option<Hsla>,
|
||||
pub underline: Option<UnderlineStyle>,
|
||||
pub white_space: WhiteSpace,
|
||||
}
|
||||
|
||||
impl Default for TextStyle {
|
||||
fn default() -> Self {
|
||||
TextStyle {
|
||||
color: black(),
|
||||
font_family: "Helvetica".into(), // todo!("Get a font we know exists on the system")
|
||||
font_features: FontFeatures::default(),
|
||||
font_size: rems(1.).into(),
|
||||
line_height: phi(),
|
||||
font_weight: FontWeight::default(),
|
||||
font_style: FontStyle::default(),
|
||||
background_color: None,
|
||||
underline: None,
|
||||
white_space: WhiteSpace::Normal,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl TextStyle {
|
||||
pub fn highlight(mut self, style: impl Into<HighlightStyle>) -> Self {
|
||||
let style = style.into();
|
||||
if let Some(weight) = style.font_weight {
|
||||
self.font_weight = weight;
|
||||
}
|
||||
if let Some(style) = style.font_style {
|
||||
self.font_style = style;
|
||||
}
|
||||
|
||||
if let Some(color) = style.color {
|
||||
self.color = self.color.blend(color);
|
||||
}
|
||||
|
||||
if let Some(factor) = style.fade_out {
|
||||
self.color.fade_out(factor);
|
||||
}
|
||||
|
||||
if let Some(background_color) = style.background_color {
|
||||
self.background_color = Some(background_color);
|
||||
}
|
||||
|
||||
if let Some(underline) = style.underline {
|
||||
self.underline = Some(underline);
|
||||
}
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
pub fn font(&self) -> Font {
|
||||
Font {
|
||||
family: self.font_family.clone(),
|
||||
features: self.font_features,
|
||||
weight: self.font_weight,
|
||||
style: self.font_style,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the rounded line height in pixels.
|
||||
pub fn line_height_in_pixels(&self, rem_size: Pixels) -> Pixels {
|
||||
self.line_height.to_pixels(self.font_size, rem_size).round()
|
||||
}
|
||||
|
||||
pub fn to_run(&self, len: usize) -> TextRun {
|
||||
TextRun {
|
||||
len,
|
||||
font: Font {
|
||||
family: self.font_family.clone(),
|
||||
features: Default::default(),
|
||||
weight: self.font_weight,
|
||||
style: self.font_style,
|
||||
},
|
||||
color: self.color,
|
||||
background_color: self.background_color,
|
||||
underline: self.underline,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug, Default, PartialEq)]
|
||||
pub struct HighlightStyle {
|
||||
pub color: Option<Hsla>,
|
||||
pub font_weight: Option<FontWeight>,
|
||||
pub font_style: Option<FontStyle>,
|
||||
pub background_color: Option<Hsla>,
|
||||
pub underline: Option<UnderlineStyle>,
|
||||
pub fade_out: Option<f32>,
|
||||
}
|
||||
|
||||
impl Eq for HighlightStyle {}
|
||||
|
||||
impl Style {
|
||||
pub fn text_style(&self) -> Option<&TextStyleRefinement> {
|
||||
if self.text.is_some() {
|
||||
Some(&self.text)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
pub fn overflow_mask(
|
||||
&self,
|
||||
bounds: Bounds<Pixels>,
|
||||
rem_size: Pixels,
|
||||
) -> Option<ContentMask<Pixels>> {
|
||||
match self.overflow {
|
||||
Point {
|
||||
x: Overflow::Visible,
|
||||
y: Overflow::Visible,
|
||||
} => None,
|
||||
_ => {
|
||||
let mut min = bounds.origin;
|
||||
let mut max = bounds.lower_right();
|
||||
|
||||
if self
|
||||
.border_color
|
||||
.map_or(false, |color| !color.is_transparent())
|
||||
{
|
||||
min.x += self.border_widths.left.to_pixels(rem_size);
|
||||
max.x -= self.border_widths.right.to_pixels(rem_size);
|
||||
min.y += self.border_widths.top.to_pixels(rem_size);
|
||||
max.y -= self.border_widths.bottom.to_pixels(rem_size);
|
||||
}
|
||||
|
||||
let bounds = match (
|
||||
self.overflow.x == Overflow::Visible,
|
||||
self.overflow.y == Overflow::Visible,
|
||||
) {
|
||||
// x and y both visible
|
||||
(true, true) => return None,
|
||||
// x visible, y hidden
|
||||
(true, false) => Bounds::from_corners(
|
||||
point(min.x, bounds.origin.y),
|
||||
point(max.x, bounds.lower_right().y),
|
||||
),
|
||||
// x hidden, y visible
|
||||
(false, true) => Bounds::from_corners(
|
||||
point(bounds.origin.x, min.y),
|
||||
point(bounds.lower_right().x, max.y),
|
||||
),
|
||||
// both hidden
|
||||
(false, false) => Bounds::from_corners(min, max),
|
||||
};
|
||||
|
||||
Some(ContentMask { bounds })
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// pub fn apply_text_style<C, F, R>(&self, cx: &mut C, f: F) -> R
|
||||
// where
|
||||
// C: BorrowAppContext,
|
||||
// F: FnOnce(&mut C) -> R,
|
||||
// {
|
||||
// if self.text.is_some() {
|
||||
// cx.with_text_style(Some(self.text.clone()), f)
|
||||
// } else {
|
||||
// f(cx)
|
||||
// }
|
||||
// }
|
||||
|
||||
// /// Apply overflow to content mask
|
||||
// pub fn apply_overflow<C, F, R>(&self, bounds: Bounds<Pixels>, cx: &mut C, f: F) -> R
|
||||
// where
|
||||
// C: BorrowWindow,
|
||||
// F: FnOnce(&mut C) -> R,
|
||||
// {
|
||||
// let current_mask = cx.content_mask();
|
||||
|
||||
// let min = current_mask.bounds.origin;
|
||||
// let max = current_mask.bounds.lower_right();
|
||||
|
||||
// let mask_bounds = match (
|
||||
// self.overflow.x == Overflow::Visible,
|
||||
// self.overflow.y == Overflow::Visible,
|
||||
// ) {
|
||||
// // x and y both visible
|
||||
// (true, true) => return f(cx),
|
||||
// // x visible, y hidden
|
||||
// (true, false) => Bounds::from_corners(
|
||||
// point(min.x, bounds.origin.y),
|
||||
// point(max.x, bounds.lower_right().y),
|
||||
// ),
|
||||
// // x hidden, y visible
|
||||
// (false, true) => Bounds::from_corners(
|
||||
// point(bounds.origin.x, min.y),
|
||||
// point(bounds.lower_right().x, max.y),
|
||||
// ),
|
||||
// // both hidden
|
||||
// (false, false) => bounds,
|
||||
// };
|
||||
// let mask = ContentMask {
|
||||
// bounds: mask_bounds,
|
||||
// };
|
||||
|
||||
// cx.with_content_mask(Some(mask), f)
|
||||
// }
|
||||
|
||||
/// Paints the background of an element styled with this style.
|
||||
pub fn paint(
|
||||
&self,
|
||||
bounds: Bounds<Pixels>,
|
||||
cx: &mut WindowContext,
|
||||
continuation: impl FnOnce(&mut WindowContext),
|
||||
) {
|
||||
#[cfg(debug_assertions)]
|
||||
if self.debug_below {
|
||||
cx.set_global(DebugBelow)
|
||||
}
|
||||
|
||||
#[cfg(debug_assertions)]
|
||||
if self.debug || cx.has_global::<DebugBelow>() {
|
||||
cx.paint_quad(crate::outline(bounds, crate::red()));
|
||||
}
|
||||
|
||||
let rem_size = cx.rem_size();
|
||||
|
||||
cx.with_z_index(0, |cx| {
|
||||
cx.paint_shadows(
|
||||
bounds,
|
||||
self.corner_radii.to_pixels(bounds.size, rem_size),
|
||||
&self.box_shadow,
|
||||
);
|
||||
});
|
||||
|
||||
let background_color = self.background.as_ref().and_then(Fill::color);
|
||||
if background_color.map_or(false, |color| !color.is_transparent()) {
|
||||
cx.with_z_index(1, |cx| {
|
||||
let mut border_color = background_color.unwrap_or_default();
|
||||
border_color.a = 0.;
|
||||
cx.paint_quad(quad(
|
||||
bounds,
|
||||
self.corner_radii.to_pixels(bounds.size, rem_size),
|
||||
background_color.unwrap_or_default(),
|
||||
Edges::default(),
|
||||
border_color,
|
||||
));
|
||||
});
|
||||
}
|
||||
|
||||
cx.with_z_index(2, |cx| {
|
||||
continuation(cx);
|
||||
});
|
||||
|
||||
if self.is_border_visible() {
|
||||
cx.with_z_index(3, |cx| {
|
||||
let corner_radii = self.corner_radii.to_pixels(bounds.size, rem_size);
|
||||
let border_widths = self.border_widths.to_pixels(rem_size);
|
||||
let max_border_width = border_widths.max();
|
||||
let max_corner_radius = corner_radii.max();
|
||||
|
||||
let top_bounds = Bounds::from_corners(
|
||||
bounds.origin,
|
||||
bounds.upper_right()
|
||||
+ point(Pixels::ZERO, max_border_width.max(max_corner_radius)),
|
||||
);
|
||||
let bottom_bounds = Bounds::from_corners(
|
||||
bounds.lower_left()
|
||||
- point(Pixels::ZERO, max_border_width.max(max_corner_radius)),
|
||||
bounds.lower_right(),
|
||||
);
|
||||
let left_bounds = Bounds::from_corners(
|
||||
top_bounds.lower_left(),
|
||||
bottom_bounds.origin + point(max_border_width, Pixels::ZERO),
|
||||
);
|
||||
let right_bounds = Bounds::from_corners(
|
||||
top_bounds.lower_right() - point(max_border_width, Pixels::ZERO),
|
||||
bottom_bounds.upper_right(),
|
||||
);
|
||||
|
||||
let mut background = self.border_color.unwrap_or_default();
|
||||
background.a = 0.;
|
||||
let quad = quad(
|
||||
bounds,
|
||||
corner_radii,
|
||||
background,
|
||||
border_widths,
|
||||
self.border_color.unwrap_or_default(),
|
||||
);
|
||||
|
||||
cx.with_content_mask(Some(ContentMask { bounds: top_bounds }), |cx| {
|
||||
cx.paint_quad(quad.clone());
|
||||
});
|
||||
cx.with_content_mask(
|
||||
Some(ContentMask {
|
||||
bounds: right_bounds,
|
||||
}),
|
||||
|cx| {
|
||||
cx.paint_quad(quad.clone());
|
||||
},
|
||||
);
|
||||
cx.with_content_mask(
|
||||
Some(ContentMask {
|
||||
bounds: bottom_bounds,
|
||||
}),
|
||||
|cx| {
|
||||
cx.paint_quad(quad.clone());
|
||||
},
|
||||
);
|
||||
cx.with_content_mask(
|
||||
Some(ContentMask {
|
||||
bounds: left_bounds,
|
||||
}),
|
||||
|cx| {
|
||||
cx.paint_quad(quad);
|
||||
},
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
#[cfg(debug_assertions)]
|
||||
if self.debug_below {
|
||||
cx.remove_global::<DebugBelow>();
|
||||
}
|
||||
}
|
||||
|
||||
fn is_border_visible(&self) -> bool {
|
||||
self.border_color
|
||||
.map_or(false, |color| !color.is_transparent())
|
||||
&& self.border_widths.any(|length| !length.is_zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Style {
|
||||
fn default() -> Self {
|
||||
Style {
|
||||
display: Display::Block,
|
||||
visibility: Visibility::Visible,
|
||||
overflow: Point {
|
||||
x: Overflow::Visible,
|
||||
y: Overflow::Visible,
|
||||
},
|
||||
scrollbar_width: 0.0,
|
||||
position: Position::Relative,
|
||||
inset: Edges::auto(),
|
||||
margin: Edges::<Length>::zero(),
|
||||
padding: Edges::<DefiniteLength>::zero(),
|
||||
border_widths: Edges::<AbsoluteLength>::zero(),
|
||||
size: Size::auto(),
|
||||
min_size: Size::auto(),
|
||||
max_size: Size::auto(),
|
||||
aspect_ratio: None,
|
||||
gap: Size::default(),
|
||||
// Aligment
|
||||
align_items: None,
|
||||
align_self: None,
|
||||
align_content: None,
|
||||
justify_content: None,
|
||||
// Flexbox
|
||||
flex_direction: FlexDirection::Row,
|
||||
flex_wrap: FlexWrap::NoWrap,
|
||||
flex_grow: 0.0,
|
||||
flex_shrink: 1.0,
|
||||
flex_basis: Length::Auto,
|
||||
background: None,
|
||||
border_color: None,
|
||||
corner_radii: Corners::default(),
|
||||
box_shadow: Default::default(),
|
||||
text: TextStyleRefinement::default(),
|
||||
mouse_cursor: None,
|
||||
z_index: None,
|
||||
|
||||
#[cfg(debug_assertions)]
|
||||
debug: false,
|
||||
#[cfg(debug_assertions)]
|
||||
debug_below: false,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Refineable, Copy, Clone, Default, Debug, PartialEq, Eq)]
|
||||
#[refineable(Debug)]
|
||||
pub struct UnderlineStyle {
|
||||
pub thickness: Pixels,
|
||||
pub color: Option<Hsla>,
|
||||
pub wavy: bool,
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub enum Fill {
|
||||
Color(Hsla),
|
||||
}
|
||||
|
||||
impl Fill {
|
||||
pub fn color(&self) -> Option<Hsla> {
|
||||
match self {
|
||||
Fill::Color(color) => Some(*color),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Fill {
|
||||
fn default() -> Self {
|
||||
Self::Color(Hsla::default())
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Hsla> for Fill {
|
||||
fn from(color: Hsla) -> Self {
|
||||
Self::Color(color)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<TextStyle> for HighlightStyle {
|
||||
fn from(other: TextStyle) -> Self {
|
||||
Self::from(&other)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<&TextStyle> for HighlightStyle {
|
||||
fn from(other: &TextStyle) -> Self {
|
||||
Self {
|
||||
color: Some(other.color),
|
||||
font_weight: Some(other.font_weight),
|
||||
font_style: Some(other.font_style),
|
||||
background_color: other.background_color,
|
||||
underline: other.underline,
|
||||
fade_out: None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl HighlightStyle {
|
||||
pub fn highlight(&mut self, other: HighlightStyle) {
|
||||
match (self.color, other.color) {
|
||||
(Some(self_color), Some(other_color)) => {
|
||||
self.color = Some(Hsla::blend(other_color, self_color));
|
||||
}
|
||||
(None, Some(other_color)) => {
|
||||
self.color = Some(other_color);
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
|
||||
if other.font_weight.is_some() {
|
||||
self.font_weight = other.font_weight;
|
||||
}
|
||||
|
||||
if other.font_style.is_some() {
|
||||
self.font_style = other.font_style;
|
||||
}
|
||||
|
||||
if other.background_color.is_some() {
|
||||
self.background_color = other.background_color;
|
||||
}
|
||||
|
||||
if other.underline.is_some() {
|
||||
self.underline = other.underline;
|
||||
}
|
||||
|
||||
match (other.fade_out, self.fade_out) {
|
||||
(Some(source_fade), None) => self.fade_out = Some(source_fade),
|
||||
(Some(source_fade), Some(dest_fade)) => {
|
||||
self.fade_out = Some((dest_fade * (1. + source_fade)).clamp(0., 1.));
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Hsla> for HighlightStyle {
|
||||
fn from(color: Hsla) -> Self {
|
||||
Self {
|
||||
color: Some(color),
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<FontWeight> for HighlightStyle {
|
||||
fn from(font_weight: FontWeight) -> Self {
|
||||
Self {
|
||||
font_weight: Some(font_weight),
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<FontStyle> for HighlightStyle {
|
||||
fn from(font_style: FontStyle) -> Self {
|
||||
Self {
|
||||
font_style: Some(font_style),
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Rgba> for HighlightStyle {
|
||||
fn from(color: Rgba) -> Self {
|
||||
Self {
|
||||
color: Some(color.into()),
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn combine_highlights(
|
||||
a: impl IntoIterator<Item = (Range<usize>, HighlightStyle)>,
|
||||
b: impl IntoIterator<Item = (Range<usize>, HighlightStyle)>,
|
||||
) -> impl Iterator<Item = (Range<usize>, HighlightStyle)> {
|
||||
let mut endpoints = Vec::new();
|
||||
let mut highlights = Vec::new();
|
||||
for (range, highlight) in a.into_iter().chain(b) {
|
||||
if !range.is_empty() {
|
||||
let highlight_id = highlights.len();
|
||||
endpoints.push((range.start, highlight_id, true));
|
||||
endpoints.push((range.end, highlight_id, false));
|
||||
highlights.push(highlight);
|
||||
}
|
||||
}
|
||||
endpoints.sort_unstable_by_key(|(position, _, _)| *position);
|
||||
let mut endpoints = endpoints.into_iter().peekable();
|
||||
|
||||
let mut active_styles = HashSet::default();
|
||||
let mut ix = 0;
|
||||
iter::from_fn(move || {
|
||||
while let Some((endpoint_ix, highlight_id, is_start)) = endpoints.peek() {
|
||||
let prev_index = mem::replace(&mut ix, *endpoint_ix);
|
||||
if ix > prev_index && !active_styles.is_empty() {
|
||||
let mut current_style = HighlightStyle::default();
|
||||
for highlight_id in &active_styles {
|
||||
current_style.highlight(highlights[*highlight_id]);
|
||||
}
|
||||
return Some((prev_index..ix, current_style));
|
||||
}
|
||||
|
||||
if *is_start {
|
||||
active_styles.insert(*highlight_id);
|
||||
} else {
|
||||
active_styles.remove(highlight_id);
|
||||
}
|
||||
endpoints.next();
|
||||
}
|
||||
None
|
||||
})
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use crate::{blue, green, red, yellow};
|
||||
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_combine_highlights() {
|
||||
assert_eq!(
|
||||
combine_highlights(
|
||||
[
|
||||
(0..5, green().into()),
|
||||
(4..10, FontWeight::BOLD.into()),
|
||||
(15..20, yellow().into()),
|
||||
],
|
||||
[
|
||||
(2..6, FontStyle::Italic.into()),
|
||||
(1..3, blue().into()),
|
||||
(21..23, red().into()),
|
||||
]
|
||||
)
|
||||
.collect::<Vec<_>>(),
|
||||
[
|
||||
(
|
||||
0..1,
|
||||
HighlightStyle {
|
||||
color: Some(green()),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
1..2,
|
||||
HighlightStyle {
|
||||
color: Some(green()),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
2..3,
|
||||
HighlightStyle {
|
||||
color: Some(green()),
|
||||
font_style: Some(FontStyle::Italic),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
3..4,
|
||||
HighlightStyle {
|
||||
color: Some(green()),
|
||||
font_style: Some(FontStyle::Italic),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
4..5,
|
||||
HighlightStyle {
|
||||
color: Some(green()),
|
||||
font_weight: Some(FontWeight::BOLD),
|
||||
font_style: Some(FontStyle::Italic),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
5..6,
|
||||
HighlightStyle {
|
||||
font_weight: Some(FontWeight::BOLD),
|
||||
font_style: Some(FontStyle::Italic),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
6..10,
|
||||
HighlightStyle {
|
||||
font_weight: Some(FontWeight::BOLD),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
15..20,
|
||||
HighlightStyle {
|
||||
color: Some(yellow()),
|
||||
..Default::default()
|
||||
}
|
||||
),
|
||||
(
|
||||
21..23,
|
||||
HighlightStyle {
|
||||
color: Some(red()),
|
||||
..Default::default()
|
||||
}
|
||||
)
|
||||
]
|
||||
);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue