1use std::{
2 hash::{Hash, Hasher},
3 iter, mem,
4 ops::Range,
5};
6
7use crate::{
8 black, phi, point, quad, rems, AbsoluteLength, Bounds, ContentMask, Corners, CornersRefinement,
9 CursorStyle, DefiniteLength, Edges, EdgesRefinement, Font, FontFeatures, FontStyle, FontWeight,
10 Hsla, Length, Pixels, Point, PointRefinement, Rgba, SharedString, Size, SizeRefinement, Styled,
11 TextRun, WindowContext,
12};
13use collections::HashSet;
14use refineable::Refineable;
15use smallvec::SmallVec;
16pub use taffy::style::{
17 AlignContent, AlignItems, AlignSelf, Display, FlexDirection, FlexWrap, JustifyContent,
18 Overflow, Position,
19};
20
21/// Use this struct for interfacing with the 'debug_below' styling from your own elements.
22/// If a parent element has this style set on it, then this struct will be set as a global in
23/// GPUI.
24#[cfg(debug_assertions)]
25pub struct DebugBelow;
26
27#[cfg(debug_assertions)]
28impl crate::Global for DebugBelow {}
29
30/// The CSS styling that can be applied to an element via the `Styled` trait
31#[derive(Clone, Refineable, Debug)]
32#[refineable(Debug)]
33pub struct Style {
34 /// What layout strategy should be used?
35 pub display: Display,
36
37 /// Should the element be painted on screen?
38 pub visibility: Visibility,
39
40 // Overflow properties
41 /// How children overflowing their container should affect layout
42 #[refineable]
43 pub overflow: Point<Overflow>,
44 /// How much space (in points) should be reserved for the scrollbars of `Overflow::Scroll` and `Overflow::Auto` nodes.
45 pub scrollbar_width: f32,
46
47 // Position properties
48 /// What should the `position` value of this struct use as a base offset?
49 pub position: Position,
50 /// How should the position of this element be tweaked relative to the layout defined?
51 #[refineable]
52 pub inset: Edges<Length>,
53
54 // Size properties
55 /// Sets the initial size of the item
56 #[refineable]
57 pub size: Size<Length>,
58 /// Controls the minimum size of the item
59 #[refineable]
60 pub min_size: Size<Length>,
61 /// Controls the maximum size of the item
62 #[refineable]
63 pub max_size: Size<Length>,
64 /// Sets the preferred aspect ratio for the item. The ratio is calculated as width divided by height.
65 pub aspect_ratio: Option<f32>,
66
67 // Spacing Properties
68 /// How large should the margin be on each side?
69 #[refineable]
70 pub margin: Edges<Length>,
71 /// How large should the padding be on each side?
72 #[refineable]
73 pub padding: Edges<DefiniteLength>,
74 /// How large should the border be on each side?
75 #[refineable]
76 pub border_widths: Edges<AbsoluteLength>,
77
78 // Alignment properties
79 /// How this node's children aligned in the cross/block axis?
80 pub align_items: Option<AlignItems>,
81 /// How this node should be aligned in the cross/block axis. Falls back to the parents [`AlignItems`] if not set
82 pub align_self: Option<AlignSelf>,
83 /// How should content contained within this item be aligned in the cross/block axis
84 pub align_content: Option<AlignContent>,
85 /// How should contained within this item be aligned in the main/inline axis
86 pub justify_content: Option<JustifyContent>,
87 /// How large should the gaps between items in a flex container be?
88 #[refineable]
89 pub gap: Size<DefiniteLength>,
90
91 // Flexbox properties
92 /// Which direction does the main axis flow in?
93 pub flex_direction: FlexDirection,
94 /// Should elements wrap, or stay in a single line?
95 pub flex_wrap: FlexWrap,
96 /// Sets the initial main axis size of the item
97 pub flex_basis: Length,
98 /// 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.
99 pub flex_grow: f32,
100 /// 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.
101 pub flex_shrink: f32,
102
103 /// The fill color of this element
104 pub background: Option<Fill>,
105
106 /// The border color of this element
107 pub border_color: Option<Hsla>,
108
109 /// The radius of the corners of this element
110 #[refineable]
111 pub corner_radii: Corners<AbsoluteLength>,
112
113 /// Box Shadow of the element
114 pub box_shadow: SmallVec<[BoxShadow; 2]>,
115
116 /// The text style of this element
117 pub text: TextStyleRefinement,
118
119 /// The mouse cursor style shown when the mouse pointer is over an element.
120 pub mouse_cursor: Option<CursorStyle>,
121
122 /// Whether to draw a red debugging outline around this element
123 #[cfg(debug_assertions)]
124 pub debug: bool,
125
126 /// Whether to draw a red debugging outline around this element and all of its conforming children
127 #[cfg(debug_assertions)]
128 pub debug_below: bool,
129}
130
131impl Styled for StyleRefinement {
132 fn style(&mut self) -> &mut StyleRefinement {
133 self
134 }
135}
136
137/// The value of the visibility property, similar to the CSS property `visibility`
138#[derive(Default, Clone, Copy, Debug, Eq, PartialEq)]
139pub enum Visibility {
140 /// The element should be drawn as normal.
141 #[default]
142 Visible,
143 /// The element should not be drawn, but should still take up space in the layout.
144 Hidden,
145}
146
147/// The possible values of the box-shadow property
148#[derive(Clone, Debug)]
149pub struct BoxShadow {
150 /// What color should the shadow have?
151 pub color: Hsla,
152 /// How should it be offset from its element?
153 pub offset: Point<Pixels>,
154 /// How much should the shadow be blurred?
155 pub blur_radius: Pixels,
156 /// How much should the shadow spread?
157 pub spread_radius: Pixels,
158}
159
160/// How to handle whitespace in text
161#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
162pub enum WhiteSpace {
163 /// Normal line wrapping when text overflows the width of the element
164 #[default]
165 Normal,
166 /// No line wrapping, text will overflow the width of the element
167 Nowrap,
168}
169
170/// The properties that can be used to style text in GPUI
171#[derive(Refineable, Clone, Debug, PartialEq)]
172#[refineable(Debug)]
173pub struct TextStyle {
174 /// The color of the text
175 pub color: Hsla,
176
177 /// The font family to use
178 pub font_family: SharedString,
179
180 /// The font features to use
181 pub font_features: FontFeatures,
182
183 /// The font size to use, in pixels or rems.
184 pub font_size: AbsoluteLength,
185
186 /// The line height to use, in pixels or fractions
187 pub line_height: DefiniteLength,
188
189 /// The font weight, e.g. bold
190 pub font_weight: FontWeight,
191
192 /// The font style, e.g. italic
193 pub font_style: FontStyle,
194
195 /// The background color of the text
196 pub background_color: Option<Hsla>,
197
198 /// The underline style of the text
199 pub underline: Option<UnderlineStyle>,
200
201 /// The strikethrough style of the text
202 pub strikethrough: Option<StrikethroughStyle>,
203
204 /// How to handle whitespace in the text
205 pub white_space: WhiteSpace,
206}
207
208impl Default for TextStyle {
209 fn default() -> Self {
210 TextStyle {
211 color: black(),
212 // todo(linux) make this configurable or choose better default
213 font_family: if cfg!(target_os = "linux") {
214 "FreeMono".into()
215 } else {
216 "Helvetica".into()
217 },
218 font_features: FontFeatures::default(),
219 font_size: rems(1.).into(),
220 line_height: phi(),
221 font_weight: FontWeight::default(),
222 font_style: FontStyle::default(),
223 background_color: None,
224 underline: None,
225 strikethrough: None,
226 white_space: WhiteSpace::Normal,
227 }
228 }
229}
230
231impl TextStyle {
232 /// Create a new text style with the given highlighting applied.
233 pub fn highlight(mut self, style: impl Into<HighlightStyle>) -> Self {
234 let style = style.into();
235 if let Some(weight) = style.font_weight {
236 self.font_weight = weight;
237 }
238 if let Some(style) = style.font_style {
239 self.font_style = style;
240 }
241
242 if let Some(color) = style.color {
243 self.color = self.color.blend(color);
244 }
245
246 if let Some(factor) = style.fade_out {
247 self.color.fade_out(factor);
248 }
249
250 if let Some(background_color) = style.background_color {
251 self.background_color = Some(background_color);
252 }
253
254 if let Some(underline) = style.underline {
255 self.underline = Some(underline);
256 }
257
258 if let Some(strikethrough) = style.strikethrough {
259 self.strikethrough = Some(strikethrough);
260 }
261
262 self
263 }
264
265 /// Get the font configured for this text style.
266 pub fn font(&self) -> Font {
267 Font {
268 family: self.font_family.clone(),
269 features: self.font_features.clone(),
270 weight: self.font_weight,
271 style: self.font_style,
272 }
273 }
274
275 /// Returns the rounded line height in pixels.
276 pub fn line_height_in_pixels(&self, rem_size: Pixels) -> Pixels {
277 self.line_height.to_pixels(self.font_size, rem_size).round()
278 }
279
280 /// Convert this text style into a [`TextRun`], for the given length of the text.
281 pub fn to_run(&self, len: usize) -> TextRun {
282 TextRun {
283 len,
284 font: Font {
285 family: self.font_family.clone(),
286 features: Default::default(),
287 weight: self.font_weight,
288 style: self.font_style,
289 },
290 color: self.color,
291 background_color: self.background_color,
292 underline: self.underline,
293 strikethrough: self.strikethrough,
294 }
295 }
296}
297
298/// A highlight style to apply, similar to a `TextStyle` except
299/// for a single font, uniformly sized and spaced text.
300#[derive(Copy, Clone, Debug, Default, PartialEq)]
301pub struct HighlightStyle {
302 /// The color of the text
303 pub color: Option<Hsla>,
304
305 /// The font weight, e.g. bold
306 pub font_weight: Option<FontWeight>,
307
308 /// The font style, e.g. italic
309 pub font_style: Option<FontStyle>,
310
311 /// The background color of the text
312 pub background_color: Option<Hsla>,
313
314 /// The underline style of the text
315 pub underline: Option<UnderlineStyle>,
316
317 /// The underline style of the text
318 pub strikethrough: Option<StrikethroughStyle>,
319
320 /// Similar to the CSS `opacity` property, this will cause the text to be less vibrant.
321 pub fade_out: Option<f32>,
322}
323
324impl Eq for HighlightStyle {}
325
326impl Hash for HighlightStyle {
327 fn hash<H: Hasher>(&self, state: &mut H) {
328 self.color.hash(state);
329 self.font_weight.hash(state);
330 self.font_style.hash(state);
331 self.background_color.hash(state);
332 self.underline.hash(state);
333 self.strikethrough.hash(state);
334 state.write_u32(u32::from_be_bytes(
335 self.fade_out.map(|f| f.to_be_bytes()).unwrap_or_default(),
336 ));
337 }
338}
339
340impl Style {
341 /// Returns true if the style is visible and the background is opaque.
342 pub fn has_opaque_background(&self) -> bool {
343 self.background
344 .as_ref()
345 .is_some_and(|fill| fill.color().is_some_and(|color| !color.is_transparent()))
346 }
347
348 /// Get the text style in this element style.
349 pub fn text_style(&self) -> Option<&TextStyleRefinement> {
350 if self.text.is_some() {
351 Some(&self.text)
352 } else {
353 None
354 }
355 }
356
357 /// Get the content mask for this element style, based on the given bounds.
358 /// If the element does not hide its overflow, this will return `None`.
359 pub fn overflow_mask(
360 &self,
361 bounds: Bounds<Pixels>,
362 rem_size: Pixels,
363 ) -> Option<ContentMask<Pixels>> {
364 match self.overflow {
365 Point {
366 x: Overflow::Visible,
367 y: Overflow::Visible,
368 } => None,
369 _ => {
370 let mut min = bounds.origin;
371 let mut max = bounds.lower_right();
372
373 if self
374 .border_color
375 .map_or(false, |color| !color.is_transparent())
376 {
377 min.x += self.border_widths.left.to_pixels(rem_size);
378 max.x -= self.border_widths.right.to_pixels(rem_size);
379 min.y += self.border_widths.top.to_pixels(rem_size);
380 max.y -= self.border_widths.bottom.to_pixels(rem_size);
381 }
382
383 let bounds = match (
384 self.overflow.x == Overflow::Visible,
385 self.overflow.y == Overflow::Visible,
386 ) {
387 // x and y both visible
388 (true, true) => return None,
389 // x visible, y hidden
390 (true, false) => Bounds::from_corners(
391 point(min.x, bounds.origin.y),
392 point(max.x, bounds.lower_right().y),
393 ),
394 // x hidden, y visible
395 (false, true) => Bounds::from_corners(
396 point(bounds.origin.x, min.y),
397 point(bounds.lower_right().x, max.y),
398 ),
399 // both hidden
400 (false, false) => Bounds::from_corners(min, max),
401 };
402
403 Some(ContentMask { bounds })
404 }
405 }
406 }
407
408 /// Paints the background of an element styled with this style.
409 pub fn paint(
410 &self,
411 bounds: Bounds<Pixels>,
412 cx: &mut WindowContext,
413 continuation: impl FnOnce(&mut WindowContext),
414 ) {
415 #[cfg(debug_assertions)]
416 if self.debug_below {
417 cx.set_global(DebugBelow)
418 }
419
420 #[cfg(debug_assertions)]
421 if self.debug || cx.has_global::<DebugBelow>() {
422 cx.paint_quad(crate::outline(bounds, crate::red()));
423 }
424
425 let rem_size = cx.rem_size();
426
427 cx.paint_shadows(
428 bounds,
429 self.corner_radii.to_pixels(bounds.size, rem_size),
430 &self.box_shadow,
431 );
432
433 let background_color = self.background.as_ref().and_then(Fill::color);
434 if background_color.map_or(false, |color| !color.is_transparent()) {
435 let mut border_color = background_color.unwrap_or_default();
436 border_color.a = 0.;
437 cx.paint_quad(quad(
438 bounds,
439 self.corner_radii.to_pixels(bounds.size, rem_size),
440 background_color.unwrap_or_default(),
441 Edges::default(),
442 border_color,
443 ));
444 }
445
446 continuation(cx);
447
448 if self.is_border_visible() {
449 let corner_radii = self.corner_radii.to_pixels(bounds.size, rem_size);
450 let border_widths = self.border_widths.to_pixels(rem_size);
451 let max_border_width = border_widths.max();
452 let max_corner_radius = corner_radii.max();
453
454 let top_bounds = Bounds::from_corners(
455 bounds.origin,
456 bounds.upper_right() + point(Pixels::ZERO, max_border_width.max(max_corner_radius)),
457 );
458 let bottom_bounds = Bounds::from_corners(
459 bounds.lower_left() - point(Pixels::ZERO, max_border_width.max(max_corner_radius)),
460 bounds.lower_right(),
461 );
462 let left_bounds = Bounds::from_corners(
463 top_bounds.lower_left(),
464 bottom_bounds.origin + point(max_border_width, Pixels::ZERO),
465 );
466 let right_bounds = Bounds::from_corners(
467 top_bounds.lower_right() - point(max_border_width, Pixels::ZERO),
468 bottom_bounds.upper_right(),
469 );
470
471 let mut background = self.border_color.unwrap_or_default();
472 background.a = 0.;
473 let quad = quad(
474 bounds,
475 corner_radii,
476 background,
477 border_widths,
478 self.border_color.unwrap_or_default(),
479 );
480
481 cx.with_content_mask(Some(ContentMask { bounds: top_bounds }), |cx| {
482 cx.paint_quad(quad.clone());
483 });
484 cx.with_content_mask(
485 Some(ContentMask {
486 bounds: right_bounds,
487 }),
488 |cx| {
489 cx.paint_quad(quad.clone());
490 },
491 );
492 cx.with_content_mask(
493 Some(ContentMask {
494 bounds: bottom_bounds,
495 }),
496 |cx| {
497 cx.paint_quad(quad.clone());
498 },
499 );
500 cx.with_content_mask(
501 Some(ContentMask {
502 bounds: left_bounds,
503 }),
504 |cx| {
505 cx.paint_quad(quad);
506 },
507 );
508 }
509
510 #[cfg(debug_assertions)]
511 if self.debug_below {
512 cx.remove_global::<DebugBelow>();
513 }
514 }
515
516 fn is_border_visible(&self) -> bool {
517 self.border_color
518 .map_or(false, |color| !color.is_transparent())
519 && self.border_widths.any(|length| !length.is_zero())
520 }
521}
522
523impl Default for Style {
524 fn default() -> Self {
525 Style {
526 display: Display::Block,
527 visibility: Visibility::Visible,
528 overflow: Point {
529 x: Overflow::Visible,
530 y: Overflow::Visible,
531 },
532 scrollbar_width: 0.0,
533 position: Position::Relative,
534 inset: Edges::auto(),
535 margin: Edges::<Length>::zero(),
536 padding: Edges::<DefiniteLength>::zero(),
537 border_widths: Edges::<AbsoluteLength>::zero(),
538 size: Size::auto(),
539 min_size: Size::auto(),
540 max_size: Size::auto(),
541 aspect_ratio: None,
542 gap: Size::default(),
543 // Alignment
544 align_items: None,
545 align_self: None,
546 align_content: None,
547 justify_content: None,
548 // Flexbox
549 flex_direction: FlexDirection::Row,
550 flex_wrap: FlexWrap::NoWrap,
551 flex_grow: 0.0,
552 flex_shrink: 1.0,
553 flex_basis: Length::Auto,
554 background: None,
555 border_color: None,
556 corner_radii: Corners::default(),
557 box_shadow: Default::default(),
558 text: TextStyleRefinement::default(),
559 mouse_cursor: None,
560
561 #[cfg(debug_assertions)]
562 debug: false,
563 #[cfg(debug_assertions)]
564 debug_below: false,
565 }
566 }
567}
568
569/// The properties that can be applied to an underline.
570#[derive(Refineable, Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
571#[refineable(Debug)]
572pub struct UnderlineStyle {
573 /// The thickness of the underline.
574 pub thickness: Pixels,
575
576 /// The color of the underline.
577 pub color: Option<Hsla>,
578
579 /// Whether the underline should be wavy, like in a spell checker.
580 pub wavy: bool,
581}
582
583/// The properties that can be applied to a strikethrough.
584#[derive(Refineable, Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
585#[refineable(Debug)]
586pub struct StrikethroughStyle {
587 /// The thickness of the strikethrough.
588 pub thickness: Pixels,
589
590 /// The color of the strikethrough.
591 pub color: Option<Hsla>,
592}
593
594/// The kinds of fill that can be applied to a shape.
595#[derive(Clone, Debug)]
596pub enum Fill {
597 /// A solid color fill.
598 Color(Hsla),
599}
600
601impl Fill {
602 /// Unwrap this fill into a solid color, if it is one.
603 pub fn color(&self) -> Option<Hsla> {
604 match self {
605 Fill::Color(color) => Some(*color),
606 }
607 }
608}
609
610impl Default for Fill {
611 fn default() -> Self {
612 Self::Color(Hsla::default())
613 }
614}
615
616impl From<Hsla> for Fill {
617 fn from(color: Hsla) -> Self {
618 Self::Color(color)
619 }
620}
621
622impl From<Rgba> for Fill {
623 fn from(color: Rgba) -> Self {
624 Self::Color(color.into())
625 }
626}
627
628impl From<TextStyle> for HighlightStyle {
629 fn from(other: TextStyle) -> Self {
630 Self::from(&other)
631 }
632}
633
634impl From<&TextStyle> for HighlightStyle {
635 fn from(other: &TextStyle) -> Self {
636 Self {
637 color: Some(other.color),
638 font_weight: Some(other.font_weight),
639 font_style: Some(other.font_style),
640 background_color: other.background_color,
641 underline: other.underline,
642 strikethrough: other.strikethrough,
643 fade_out: None,
644 }
645 }
646}
647
648impl HighlightStyle {
649 /// Create a highlight style with just a color
650 pub fn color(color: Hsla) -> Self {
651 Self {
652 color: Some(color),
653 ..Default::default()
654 }
655 }
656 /// Blend this highlight style with another.
657 /// Non-continuous properties, like font_weight and font_style, are overwritten.
658 pub fn highlight(&mut self, other: HighlightStyle) {
659 match (self.color, other.color) {
660 (Some(self_color), Some(other_color)) => {
661 self.color = Some(Hsla::blend(other_color, self_color));
662 }
663 (None, Some(other_color)) => {
664 self.color = Some(other_color);
665 }
666 _ => {}
667 }
668
669 if other.font_weight.is_some() {
670 self.font_weight = other.font_weight;
671 }
672
673 if other.font_style.is_some() {
674 self.font_style = other.font_style;
675 }
676
677 if other.background_color.is_some() {
678 self.background_color = other.background_color;
679 }
680
681 if other.underline.is_some() {
682 self.underline = other.underline;
683 }
684
685 if other.strikethrough.is_some() {
686 self.strikethrough = other.strikethrough;
687 }
688
689 match (other.fade_out, self.fade_out) {
690 (Some(source_fade), None) => self.fade_out = Some(source_fade),
691 (Some(source_fade), Some(dest_fade)) => {
692 self.fade_out = Some((dest_fade * (1. + source_fade)).clamp(0., 1.));
693 }
694 _ => {}
695 }
696 }
697}
698
699impl From<Hsla> for HighlightStyle {
700 fn from(color: Hsla) -> Self {
701 Self {
702 color: Some(color),
703 ..Default::default()
704 }
705 }
706}
707
708impl From<FontWeight> for HighlightStyle {
709 fn from(font_weight: FontWeight) -> Self {
710 Self {
711 font_weight: Some(font_weight),
712 ..Default::default()
713 }
714 }
715}
716
717impl From<FontStyle> for HighlightStyle {
718 fn from(font_style: FontStyle) -> Self {
719 Self {
720 font_style: Some(font_style),
721 ..Default::default()
722 }
723 }
724}
725
726impl From<Rgba> for HighlightStyle {
727 fn from(color: Rgba) -> Self {
728 Self {
729 color: Some(color.into()),
730 ..Default::default()
731 }
732 }
733}
734
735/// Combine and merge the highlights and ranges in the two iterators.
736pub fn combine_highlights(
737 a: impl IntoIterator<Item = (Range<usize>, HighlightStyle)>,
738 b: impl IntoIterator<Item = (Range<usize>, HighlightStyle)>,
739) -> impl Iterator<Item = (Range<usize>, HighlightStyle)> {
740 let mut endpoints = Vec::new();
741 let mut highlights = Vec::new();
742 for (range, highlight) in a.into_iter().chain(b) {
743 if !range.is_empty() {
744 let highlight_id = highlights.len();
745 endpoints.push((range.start, highlight_id, true));
746 endpoints.push((range.end, highlight_id, false));
747 highlights.push(highlight);
748 }
749 }
750 endpoints.sort_unstable_by_key(|(position, _, _)| *position);
751 let mut endpoints = endpoints.into_iter().peekable();
752
753 let mut active_styles = HashSet::default();
754 let mut ix = 0;
755 iter::from_fn(move || {
756 while let Some((endpoint_ix, highlight_id, is_start)) = endpoints.peek() {
757 let prev_index = mem::replace(&mut ix, *endpoint_ix);
758 if ix > prev_index && !active_styles.is_empty() {
759 let mut current_style = HighlightStyle::default();
760 for highlight_id in &active_styles {
761 current_style.highlight(highlights[*highlight_id]);
762 }
763 return Some((prev_index..ix, current_style));
764 }
765
766 if *is_start {
767 active_styles.insert(*highlight_id);
768 } else {
769 active_styles.remove(highlight_id);
770 }
771 endpoints.next();
772 }
773 None
774 })
775}
776
777#[cfg(test)]
778mod tests {
779 use crate::{blue, green, red, yellow};
780
781 use super::*;
782
783 #[test]
784 fn test_combine_highlights() {
785 assert_eq!(
786 combine_highlights(
787 [
788 (0..5, green().into()),
789 (4..10, FontWeight::BOLD.into()),
790 (15..20, yellow().into()),
791 ],
792 [
793 (2..6, FontStyle::Italic.into()),
794 (1..3, blue().into()),
795 (21..23, red().into()),
796 ]
797 )
798 .collect::<Vec<_>>(),
799 [
800 (
801 0..1,
802 HighlightStyle {
803 color: Some(green()),
804 ..Default::default()
805 }
806 ),
807 (
808 1..2,
809 HighlightStyle {
810 color: Some(green()),
811 ..Default::default()
812 }
813 ),
814 (
815 2..3,
816 HighlightStyle {
817 color: Some(green()),
818 font_style: Some(FontStyle::Italic),
819 ..Default::default()
820 }
821 ),
822 (
823 3..4,
824 HighlightStyle {
825 color: Some(green()),
826 font_style: Some(FontStyle::Italic),
827 ..Default::default()
828 }
829 ),
830 (
831 4..5,
832 HighlightStyle {
833 color: Some(green()),
834 font_weight: Some(FontWeight::BOLD),
835 font_style: Some(FontStyle::Italic),
836 ..Default::default()
837 }
838 ),
839 (
840 5..6,
841 HighlightStyle {
842 font_weight: Some(FontWeight::BOLD),
843 font_style: Some(FontStyle::Italic),
844 ..Default::default()
845 }
846 ),
847 (
848 6..10,
849 HighlightStyle {
850 font_weight: Some(FontWeight::BOLD),
851 ..Default::default()
852 }
853 ),
854 (
855 15..20,
856 HighlightStyle {
857 color: Some(yellow()),
858 ..Default::default()
859 }
860 ),
861 (
862 21..23,
863 HighlightStyle {
864 color: Some(red()),
865 ..Default::default()
866 }
867 )
868 ]
869 );
870 }
871}