111 lines
2.9 KiB
Rust
111 lines
2.9 KiB
Rust
use gpui::{hsla, point, px, BoxShadow};
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use smallvec::{smallvec, SmallVec};
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#[doc = include_str!("docs/elevation.md")]
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Elevation {
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ElevationIndex(ElevationIndex),
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LayerIndex(LayerIndex),
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ElementIndex(ElementIndex),
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ElevationIndex {
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Background,
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Surface,
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ElevatedSurface,
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Wash,
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ModalSurface,
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DraggedElement,
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}
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impl ElevationIndex {
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pub fn z_index(self) -> u8 {
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match self {
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ElevationIndex::Background => 0,
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ElevationIndex::Surface => 42,
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ElevationIndex::ElevatedSurface => 84,
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ElevationIndex::Wash => 126,
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ElevationIndex::ModalSurface => 168,
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ElevationIndex::DraggedElement => 210,
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}
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}
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pub fn shadow(self) -> SmallVec<[BoxShadow; 2]> {
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match self {
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ElevationIndex::Surface => smallvec![],
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ElevationIndex::ElevatedSurface => smallvec![BoxShadow {
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color: hsla(0., 0., 0., 0.12),
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offset: point(px(0.), px(2.)),
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blur_radius: px(3.),
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spread_radius: px(0.),
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}],
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ElevationIndex::ModalSurface => smallvec![
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BoxShadow {
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color: hsla(0., 0., 0., 0.12),
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offset: point(px(0.), px(2.)),
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blur_radius: px(3.),
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spread_radius: px(0.),
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},
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BoxShadow {
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color: hsla(0., 0., 0., 0.08),
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offset: point(px(0.), px(3.)),
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blur_radius: px(6.),
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spread_radius: px(0.),
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},
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BoxShadow {
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color: hsla(0., 0., 0., 0.04),
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offset: point(px(0.), px(6.)),
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blur_radius: px(12.),
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spread_radius: px(0.),
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},
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],
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_ => smallvec![],
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}
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}
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum LayerIndex {
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BehindElement,
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Element,
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ElevatedElement,
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}
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impl LayerIndex {
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pub fn usize(&self) -> usize {
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match *self {
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LayerIndex::BehindElement => 0,
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LayerIndex::Element => 100,
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LayerIndex::ElevatedElement => 200,
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}
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}
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}
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/// An appropriate z-index for the given layer based on its intended usage.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ElementIndex {
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Effect,
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Background,
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Tint,
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Highlight,
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Content,
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Overlay,
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}
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impl ElementIndex {
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pub fn usize(&self) -> usize {
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match *self {
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ElementIndex::Effect => 0,
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ElementIndex::Background => 100,
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ElementIndex::Tint => 200,
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ElementIndex::Highlight => 300,
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ElementIndex::Content => 400,
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ElementIndex::Overlay => 500,
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}
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}
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}
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