mirror of
https://github.com/bevyengine/bevy
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e67cfdf82b
# Objective Enables warning on `clippy::undocumented_unsafe_blocks` across the workspace rather than only in `bevy_ecs`, `bevy_transform` and `bevy_utils`. This adds a little awkwardness in a few areas of code that have trivial safety or explain safety for multiple unsafe blocks with one comment however automatically prevents these comments from being missed. ## Solution This adds `undocumented_unsafe_blocks = "warn"` to the workspace `Cargo.toml` and fixes / adds a few missed safety comments. I also added `#[allow(clippy::undocumented_unsafe_blocks)]` where the safety is explained somewhere above. There are a couple of safety comments I added I'm not 100% sure about in `bevy_animation` and `bevy_render/src/view` and I'm not sure about the use of `#[allow(clippy::undocumented_unsafe_blocks)]` compared to adding comments like `// SAFETY: See above`.
1716 lines
62 KiB
Rust
1716 lines
62 KiB
Rust
use crate::{UiRect, Val};
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use bevy_asset::Handle;
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use bevy_ecs::{prelude::Component, reflect::ReflectComponent};
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use bevy_math::{Rect, Vec2};
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use bevy_reflect::prelude::*;
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use bevy_render::{color::Color, texture::Image};
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use bevy_transform::prelude::GlobalTransform;
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use serde::{Deserialize, Serialize};
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use smallvec::SmallVec;
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use std::num::{NonZeroI16, NonZeroU16};
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use thiserror::Error;
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/// Describes the size of a UI node
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#[derive(Component, Debug, Copy, Clone, Reflect)]
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#[reflect(Component, Default)]
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pub struct Node {
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/// The order of the node in the UI layout.
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/// Nodes with a higher stack index are drawn on top of and recieve interactions before nodes with lower stack indices.
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pub(crate) stack_index: u32,
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/// The size of the node as width and height in logical pixels
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///
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/// automatically calculated by [`super::layout::ui_layout_system`]
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pub(crate) calculated_size: Vec2,
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/// The width of this node's outline.
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/// If this value is `Auto`, negative or `0.` then no outline will be rendered.
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///
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/// Automatically calculated by [`super::layout::resolve_outlines_system`].
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pub(crate) outline_width: f32,
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/// The amount of space between the outline and the edge of the node.
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pub(crate) outline_offset: f32,
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/// The unrounded size of the node as width and height in logical pixels.
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///
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/// Automatically calculated by [`super::layout::ui_layout_system`].
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pub(crate) unrounded_size: Vec2,
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}
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impl Node {
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/// The calculated node size as width and height in logical pixels.
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///
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/// Automatically calculated by [`super::layout::ui_layout_system`].
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pub const fn size(&self) -> Vec2 {
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self.calculated_size
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}
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/// The order of the node in the UI layout.
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/// Nodes with a higher stack index are drawn on top of and recieve interactions before nodes with lower stack indices.
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pub const fn stack_index(&self) -> u32 {
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self.stack_index
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}
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/// The calculated node size as width and height in logical pixels before rounding.
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///
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/// Automatically calculated by [`super::layout::ui_layout_system`].
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pub const fn unrounded_size(&self) -> Vec2 {
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self.unrounded_size
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}
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/// Returns the size of the node in physical pixels based on the given scale factor and `UiScale`.
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#[inline]
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pub fn physical_size(&self, scale_factor: f64, ui_scale: f64) -> Vec2 {
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Vec2::new(
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(self.calculated_size.x as f64 * scale_factor * ui_scale) as f32,
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(self.calculated_size.y as f64 * scale_factor * ui_scale) as f32,
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)
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}
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/// Returns the logical pixel coordinates of the UI node, based on its [`GlobalTransform`].
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#[inline]
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pub fn logical_rect(&self, transform: &GlobalTransform) -> Rect {
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Rect::from_center_size(transform.translation().truncate(), self.size())
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}
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/// Returns the physical pixel coordinates of the UI node, based on its [`GlobalTransform`] and the scale factor.
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#[inline]
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pub fn physical_rect(
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&self,
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transform: &GlobalTransform,
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scale_factor: f64,
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ui_scale: f64,
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) -> Rect {
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let rect = self.logical_rect(transform);
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Rect {
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min: Vec2::new(
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(rect.min.x as f64 * scale_factor * ui_scale) as f32,
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(rect.min.y as f64 * scale_factor * ui_scale) as f32,
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),
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max: Vec2::new(
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(rect.max.x as f64 * scale_factor * ui_scale) as f32,
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(rect.max.y as f64 * scale_factor * ui_scale) as f32,
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),
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}
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}
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#[inline]
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/// Returns the thickness of the UI node's outline.
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/// If this value is negative or `0.` then no outline will be rendered.
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pub fn outline_width(&self) -> f32 {
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self.outline_width
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}
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}
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impl Node {
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pub const DEFAULT: Self = Self {
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stack_index: 0,
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calculated_size: Vec2::ZERO,
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outline_width: 0.,
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outline_offset: 0.,
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unrounded_size: Vec2::ZERO,
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};
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}
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impl Default for Node {
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fn default() -> Self {
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Self::DEFAULT
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}
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}
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/// Describes the style of a UI container node
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///
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/// Nodes can be laid out using either Flexbox or CSS Grid Layout.
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///
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/// See below for general learning resources and for documentation on the individual style properties.
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///
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/// ### Flexbox
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///
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/// - [MDN: Basic Concepts of Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox)
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/// - [A Complete Guide To Flexbox](https://css-tricks.com/snippets/css/a-guide-to-flexbox/) by CSS Tricks. This is detailed guide with illustrations and comprehensive written explanation of the different Flexbox properties and how they work.
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/// - [Flexbox Froggy](https://flexboxfroggy.com/). An interactive tutorial/game that teaches the essential parts of Flexbox in a fun engaging way.
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///
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/// ### CSS Grid
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///
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/// - [MDN: Basic Concepts of Grid Layout](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Basic_Concepts_of_Grid_Layout)
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/// - [A Complete Guide To CSS Grid](https://css-tricks.com/snippets/css/complete-guide-grid/) by CSS Tricks. This is detailed guide with illustrations and comprehensive written explanation of the different CSS Grid properties and how they work.
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/// - [CSS Grid Garden](https://cssgridgarden.com/). An interactive tutorial/game that teaches the essential parts of CSS Grid in a fun engaging way.
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#[derive(Component, Clone, PartialEq, Debug, Deserialize, Serialize, Reflect)]
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#[reflect(Component, Default, PartialEq, Deserialize, Serialize)]
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pub struct Style {
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/// Which layout algorithm to use when laying out this node's contents:
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/// - [`Display::Flex`]: Use the Flexbox layout algorithm
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/// - [`Display::Grid`]: Use the CSS Grid layout algorithm
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/// - [`Display::None`]: Hide this node and perform layout as if it does not exist.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/display>
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pub display: Display,
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/// Whether a node should be laid out in-flow with, or independently of its siblings:
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/// - [`PositionType::Relative`]: Layout this node in-flow with other nodes using the usual (flexbox/grid) layout algorithm.
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/// - [`PositionType::Absolute`]: Layout this node on top and independently of other nodes.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/position>
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pub position_type: PositionType,
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/// Whether overflowing content should be displayed or clipped.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/overflow>
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pub overflow: Overflow,
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/// Defines the text direction. For example, English is written LTR (left-to-right) while Arabic is written RTL (right-to-left).
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///
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/// Note: the corresponding CSS property also affects box layout order, but this isn't yet implemented in Bevy.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/direction>
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pub direction: Direction,
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/// The horizontal position of the left edge of the node.
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/// - For relatively positioned nodes, this is relative to the node's position as computed during regular layout.
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/// - For absolutely positioned nodes, this is relative to the *parent* node's bounding box.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/left>
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pub left: Val,
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/// The horizontal position of the right edge of the node.
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/// - For relatively positioned nodes, this is relative to the node's position as computed during regular layout.
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/// - For absolutely positioned nodes, this is relative to the *parent* node's bounding box.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/right>
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pub right: Val,
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/// The vertical position of the top edge of the node.
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/// - For relatively positioned nodes, this is relative to the node's position as computed during regular layout.
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/// - For absolutely positioned nodes, this is relative to the *parent* node's bounding box.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/top>
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pub top: Val,
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/// The vertical position of the bottom edge of the node.
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/// - For relatively positioned nodes, this is relative to the node's position as computed during regular layout.
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/// - For absolutely positioned nodes, this is relative to the *parent* node's bounding box.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/bottom>
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pub bottom: Val,
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/// The ideal width of the node. `width` is used when it is within the bounds defined by `min_width` and `max_width`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/width>
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pub width: Val,
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/// The ideal height of the node. `height` is used when it is within the bounds defined by `min_height` and `max_height`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/height>
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pub height: Val,
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/// The minimum width of the node. `min_width` is used if it is greater than `width` and/or `max_width`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/min-width>
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pub min_width: Val,
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/// The minimum height of the node. `min_height` is used if it is greater than `height` and/or `max_height`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/min-height>
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pub min_height: Val,
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/// The maximum width of the node. `max_width` is used if it is within the bounds defined by `min_width` and `width`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/max-width>
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pub max_width: Val,
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/// The maximum height of the node. `max_height` is used if it is within the bounds defined by `min_height` and `height`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/max-height>
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pub max_height: Val,
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/// The aspect ratio of the node (defined as `width / height`)
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio>
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pub aspect_ratio: Option<f32>,
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/// Used to control how each individual item is aligned by default within the space they're given.
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/// - For Flexbox containers, sets default cross axis alignment of the child items.
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/// - For CSS Grid containers, controls block (vertical) axis alignment of children of this grid container within their grid areas.
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///
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/// This value is overridden if [`AlignSelf`] on the child node is set.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-items>
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pub align_items: AlignItems,
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/// Used to control how each individual item is aligned by default within the space they're given.
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/// - For Flexbox containers, this property has no effect. See `justify_content` for main axis alignment of flex items.
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/// - For CSS Grid containers, sets default inline (horizontal) axis alignment of child items within their grid areas.
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///
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/// This value is overridden if [`JustifySelf`] on the child node is set.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-items>
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pub justify_items: JustifyItems,
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/// Used to control how the specified item is aligned within the space it's given.
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/// - For Flexbox items, controls cross axis alignment of the item.
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/// - For CSS Grid items, controls block (vertical) axis alignment of a grid item within its grid area.
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///
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/// If set to `Auto`, alignment is inherited from the value of [`AlignItems`] set on the parent node.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-self>
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pub align_self: AlignSelf,
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/// Used to control how the specified item is aligned within the space it's given.
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/// - For Flexbox items, this property has no effect. See `justify_content` for main axis alignment of flex items.
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/// - For CSS Grid items, controls inline (horizontal) axis alignment of a grid item within its grid area.
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///
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/// If set to `Auto`, alignment is inherited from the value of [`JustifyItems`] set on the parent node.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-self>
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pub justify_self: JustifySelf,
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/// Used to control how items are distributed.
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/// - For Flexbox containers, controls alignment of lines if `flex_wrap` is set to [`FlexWrap::Wrap`] and there are multiple lines of items.
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/// - For CSS Grid containers, controls alignment of grid rows.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-content>
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pub align_content: AlignContent,
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/// Used to control how items are distributed.
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/// - For Flexbox containers, controls alignment of items in the main axis.
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/// - For CSS Grid containers, controls alignment of grid columns.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-content>
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pub justify_content: JustifyContent,
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/// The amount of space around a node outside its border.
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///
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/// If a percentage value is used, the percentage is calculated based on the width of the parent node.
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///
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/// # Example
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/// ```
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/// # use bevy_ui::{Style, UiRect, Val};
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/// let style = Style {
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/// margin: UiRect {
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/// left: Val::Percent(10.),
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/// right: Val::Percent(10.),
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/// top: Val::Percent(15.),
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/// bottom: Val::Percent(15.)
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/// },
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/// ..Default::default()
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/// };
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/// ```
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/// A node with this style and a parent with dimensions of 100px by 300px will have calculated margins of 10px on both left and right edges, and 15px on both top and bottom edges.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/margin>
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pub margin: UiRect,
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/// The amount of space between the edges of a node and its contents.
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///
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/// If a percentage value is used, the percentage is calculated based on the width of the parent node.
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///
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/// # Example
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/// ```
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/// # use bevy_ui::{Style, UiRect, Val};
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/// let style = Style {
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/// padding: UiRect {
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/// left: Val::Percent(1.),
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/// right: Val::Percent(2.),
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/// top: Val::Percent(3.),
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/// bottom: Val::Percent(4.)
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/// },
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/// ..Default::default()
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/// };
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/// ```
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/// A node with this style and a parent with dimensions of 300px by 100px will have calculated padding of 3px on the left, 6px on the right, 9px on the top and 12px on the bottom.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/padding>
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pub padding: UiRect,
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/// The amount of space between the margins of a node and its padding.
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///
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/// If a percentage value is used, the percentage is calculated based on the width of the parent node.
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///
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/// The size of the node will be expanded if there are constraints that prevent the layout algorithm from placing the border within the existing node boundary.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/border-width>
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pub border: UiRect,
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/// Whether a Flexbox container should be a row or a column. This property has no effect on Grid nodes.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-direction>
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pub flex_direction: FlexDirection,
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/// Whether a Flexbox container should wrap its contents onto multiple lines if they overflow. This property has no effect on Grid nodes.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-wrap>
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pub flex_wrap: FlexWrap,
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/// Defines how much a flexbox item should grow if there's space available. Defaults to 0 (don't grow at all).
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-grow>
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pub flex_grow: f32,
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/// Defines how much a flexbox item should shrink if there's not enough space available. Defaults to 1.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-shrink>
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pub flex_shrink: f32,
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/// The initial length of a flexbox in the main axis, before flex growing/shrinking properties are applied.
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///
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/// `flex_basis` overrides `size` on the main axis if both are set, but it obeys the bounds defined by `min_size` and `max_size`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-basis>
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pub flex_basis: Val,
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/// The size of the gutters between items in a vertical flexbox layout or between rows in a grid layout.
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///
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/// Note: Values of `Val::Auto` are not valid and are treated as zero.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/row-gap>
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pub row_gap: Val,
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/// The size of the gutters between items in a horizontal flexbox layout or between column in a grid layout.
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///
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/// Note: Values of `Val::Auto` are not valid and are treated as zero.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/column-gap>
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pub column_gap: Val,
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/// Controls whether automatically placed grid items are placed row-wise or column-wise as well as whether the sparse or dense packing algorithm is used.
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/// Only affects Grid layouts.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-flow>
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pub grid_auto_flow: GridAutoFlow,
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/// Defines the number of rows a grid has and the sizes of those rows. If grid items are given explicit placements then more rows may
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/// be implicitly generated by items that are placed out of bounds. The sizes of those rows are controlled by `grid_auto_rows` property.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-rows>
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pub grid_template_rows: Vec<RepeatedGridTrack>,
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/// Defines the number of columns a grid has and the sizes of those columns. If grid items are given explicit placements then more columns may
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/// be implicitly generated by items that are placed out of bounds. The sizes of those columns are controlled by `grid_auto_columns` property.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-columns>
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pub grid_template_columns: Vec<RepeatedGridTrack>,
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/// Defines the size of implicitly created rows. Rows are created implicitly when grid items are given explicit placements that are out of bounds
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/// of the rows explicitly created using `grid_template_rows`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-rows>
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pub grid_auto_rows: Vec<GridTrack>,
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/// Defines the size of implicitly created columns. Columns are created implicitly when grid items are given explicit placements that are out of bounds
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/// of the columns explicitly created using `grid_template_columns`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-columns>
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pub grid_auto_columns: Vec<GridTrack>,
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/// The row in which a grid item starts and how many rows it spans.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-row>
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pub grid_row: GridPlacement,
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/// The column in which a grid item starts and how many columns it spans.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-column>
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pub grid_column: GridPlacement,
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}
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impl Style {
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pub const DEFAULT: Self = Self {
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display: Display::DEFAULT,
|
|
position_type: PositionType::DEFAULT,
|
|
left: Val::Auto,
|
|
right: Val::Auto,
|
|
top: Val::Auto,
|
|
bottom: Val::Auto,
|
|
direction: Direction::DEFAULT,
|
|
flex_direction: FlexDirection::DEFAULT,
|
|
flex_wrap: FlexWrap::DEFAULT,
|
|
align_items: AlignItems::DEFAULT,
|
|
justify_items: JustifyItems::DEFAULT,
|
|
align_self: AlignSelf::DEFAULT,
|
|
justify_self: JustifySelf::DEFAULT,
|
|
align_content: AlignContent::DEFAULT,
|
|
justify_content: JustifyContent::DEFAULT,
|
|
margin: UiRect::DEFAULT,
|
|
padding: UiRect::DEFAULT,
|
|
border: UiRect::DEFAULT,
|
|
flex_grow: 0.0,
|
|
flex_shrink: 1.0,
|
|
flex_basis: Val::Auto,
|
|
width: Val::Auto,
|
|
height: Val::Auto,
|
|
min_width: Val::Auto,
|
|
min_height: Val::Auto,
|
|
max_width: Val::Auto,
|
|
max_height: Val::Auto,
|
|
aspect_ratio: None,
|
|
overflow: Overflow::DEFAULT,
|
|
row_gap: Val::ZERO,
|
|
column_gap: Val::ZERO,
|
|
grid_auto_flow: GridAutoFlow::DEFAULT,
|
|
grid_template_rows: Vec::new(),
|
|
grid_template_columns: Vec::new(),
|
|
grid_auto_rows: Vec::new(),
|
|
grid_auto_columns: Vec::new(),
|
|
grid_column: GridPlacement::DEFAULT,
|
|
grid_row: GridPlacement::DEFAULT,
|
|
};
|
|
}
|
|
|
|
impl Default for Style {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how each individual item is aligned by default within the space they're given.
|
|
/// - For Flexbox containers, sets default cross axis alignment of the child items.
|
|
/// - For CSS Grid containers, controls block (vertical) axis alignment of children of this grid container within their grid areas.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-items>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum AlignItems {
|
|
/// The items are packed in their default position as if no alignment was applied.
|
|
Default,
|
|
/// The items are packed towards the start of the axis.
|
|
Start,
|
|
/// The items are packed towards the end of the axis.
|
|
End,
|
|
/// The items are packed towards the start of the axis, unless the flex direction is reversed;
|
|
/// then they are packed towards the end of the axis.
|
|
FlexStart,
|
|
/// The items are packed towards the end of the axis, unless the flex direction is reversed;
|
|
/// then they are packed towards the start of the axis.
|
|
FlexEnd,
|
|
/// The items are packed along the center of the axis.
|
|
Center,
|
|
/// The items are packed such that their baselines align.
|
|
Baseline,
|
|
/// The items are stretched to fill the space they're given.
|
|
Stretch,
|
|
}
|
|
|
|
impl AlignItems {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for AlignItems {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how each individual item is aligned by default within the space they're given.
|
|
/// - For Flexbox containers, this property has no effect. See `justify_content` for main axis alignment of flex items.
|
|
/// - For CSS Grid containers, sets default inline (horizontal) axis alignment of child items within their grid areas.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-items>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum JustifyItems {
|
|
/// The items are packed in their default position as if no alignment was applied.
|
|
Default,
|
|
/// The items are packed towards the start of the axis.
|
|
Start,
|
|
/// The items are packed towards the end of the axis.
|
|
End,
|
|
/// The items are packed along the center of the axis
|
|
Center,
|
|
/// The items are packed such that their baselines align.
|
|
Baseline,
|
|
/// The items are stretched to fill the space they're given.
|
|
Stretch,
|
|
}
|
|
|
|
impl JustifyItems {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for JustifyItems {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how the specified item is aligned within the space it's given.
|
|
/// - For Flexbox items, controls cross axis alignment of the item.
|
|
/// - For CSS Grid items, controls block (vertical) axis alignment of a grid item within its grid area.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-self>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum AlignSelf {
|
|
/// Use the parent node's [`AlignItems`] value to determine how this item should be aligned.
|
|
Auto,
|
|
/// This item will be aligned with the start of the axis.
|
|
Start,
|
|
/// This item will be aligned with the end of the axis.
|
|
End,
|
|
/// This item will be aligned with the start of the axis, unless the flex direction is reversed;
|
|
/// then it will be aligned with the end of the axis.
|
|
FlexStart,
|
|
/// This item will be aligned with the end of the axis, unless the flex direction is reversed;
|
|
/// then it will be aligned with the start of the axis.
|
|
FlexEnd,
|
|
/// This item will be aligned along the center of the axis.
|
|
Center,
|
|
/// This item will be aligned at the baseline.
|
|
Baseline,
|
|
/// This item will be stretched to fill the container.
|
|
Stretch,
|
|
}
|
|
|
|
impl AlignSelf {
|
|
pub const DEFAULT: Self = Self::Auto;
|
|
}
|
|
|
|
impl Default for AlignSelf {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how the specified item is aligned within the space it's given.
|
|
/// - For Flexbox items, this property has no effect. See `justify_content` for main axis alignment of flex items.
|
|
/// - For CSS Grid items, controls inline (horizontal) axis alignment of a grid item within its grid area.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-self>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum JustifySelf {
|
|
/// Use the parent node's [`JustifyItems`] value to determine how this item should be aligned.
|
|
Auto,
|
|
/// This item will be aligned with the start of the axis.
|
|
Start,
|
|
/// This item will be aligned with the end of the axis.
|
|
End,
|
|
/// This item will be aligned along the center of the axis.
|
|
Center,
|
|
/// This item will be aligned at the baseline.
|
|
Baseline,
|
|
/// This item will be stretched to fill the space it's given.
|
|
Stretch,
|
|
}
|
|
|
|
impl JustifySelf {
|
|
pub const DEFAULT: Self = Self::Auto;
|
|
}
|
|
|
|
impl Default for JustifySelf {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how items are distributed.
|
|
/// - For Flexbox containers, controls alignment of lines if `flex_wrap` is set to [`FlexWrap::Wrap`] and there are multiple lines of items.
|
|
/// - For CSS Grid containers, controls alignment of grid rows.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/align-content>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum AlignContent {
|
|
/// The items are packed in their default position as if no alignment was applied.
|
|
Default,
|
|
/// The items are packed towards the start of the axis.
|
|
Start,
|
|
/// The items are packed towards the end of the axis.
|
|
End,
|
|
/// The items are packed towards the start of the axis, unless the flex direction is reversed;
|
|
/// then the items are packed towards the end of the axis.
|
|
FlexStart,
|
|
/// The items are packed towards the end of the axis, unless the flex direction is reversed;
|
|
/// then the items are packed towards the start of the axis.
|
|
FlexEnd,
|
|
/// The items are packed along the center of the axis.
|
|
Center,
|
|
/// The items are stretched to fill the container along the axis.
|
|
Stretch,
|
|
/// The items are distributed such that the gap between any two items is equal.
|
|
SpaceBetween,
|
|
/// The items are distributed such that the gap between and around any two items is equal.
|
|
SpaceEvenly,
|
|
/// The items are distributed such that the gap between and around any two items is equal, with half-size gaps on either end.
|
|
SpaceAround,
|
|
}
|
|
|
|
impl AlignContent {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for AlignContent {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Used to control how items are distributed.
|
|
/// - For Flexbox containers, controls alignment of items in the main axis.
|
|
/// - For CSS Grid containers, controls alignment of grid columns.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/justify-content>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum JustifyContent {
|
|
/// The items are packed in their default position as if no alignment was applied.
|
|
Default,
|
|
/// The items are packed towards the start of the axis.
|
|
Start,
|
|
/// The items are packed towards the end of the axis.
|
|
End,
|
|
/// The items are packed towards the start of the axis, unless the flex direction is reversed;
|
|
/// then the items are packed towards the end of the axis.
|
|
FlexStart,
|
|
/// The items are packed towards the end of the axis, unless the flex direction is reversed;
|
|
/// then the items are packed towards the start of the axis.
|
|
FlexEnd,
|
|
/// The items are packed along the center of the axis.
|
|
Center,
|
|
/// The items are stretched to fill the container along the axis.
|
|
Stretch,
|
|
/// The items are distributed such that the gap between any two items is equal.
|
|
SpaceBetween,
|
|
/// The items are distributed such that the gap between and around any two items is equal.
|
|
SpaceEvenly,
|
|
/// The items are distributed such that the gap between and around any two items is equal, with half-size gaps on either end.
|
|
SpaceAround,
|
|
}
|
|
|
|
impl JustifyContent {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for JustifyContent {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines the text direction.
|
|
///
|
|
/// For example, English is written LTR (left-to-right) while Arabic is written RTL (right-to-left).
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum Direction {
|
|
/// Inherit from parent node.
|
|
Inherit,
|
|
/// Text is written left to right.
|
|
LeftToRight,
|
|
/// Text is written right to left.
|
|
RightToLeft,
|
|
}
|
|
|
|
impl Direction {
|
|
pub const DEFAULT: Self = Self::Inherit;
|
|
}
|
|
|
|
impl Default for Direction {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines the layout model used by this node.
|
|
///
|
|
/// Part of the [`Style`] component.
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum Display {
|
|
/// Use Flexbox layout model to determine the position of this [`Node`].
|
|
Flex,
|
|
/// Use CSS Grid layout model to determine the position of this [`Node`].
|
|
Grid,
|
|
/// Use no layout, don't render this node and its children.
|
|
///
|
|
/// If you want to hide a node and its children,
|
|
/// but keep its layout in place, set its [`Visibility`](bevy_render::view::Visibility) component instead.
|
|
None,
|
|
}
|
|
|
|
impl Display {
|
|
pub const DEFAULT: Self = Self::Flex;
|
|
}
|
|
|
|
impl Default for Display {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines how flexbox items are ordered within a flexbox
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum FlexDirection {
|
|
/// Same way as text direction along the main axis.
|
|
Row,
|
|
/// Flex from top to bottom.
|
|
Column,
|
|
/// Opposite way as text direction along the main axis.
|
|
RowReverse,
|
|
/// Flex from bottom to top.
|
|
ColumnReverse,
|
|
}
|
|
|
|
impl FlexDirection {
|
|
pub const DEFAULT: Self = Self::Row;
|
|
}
|
|
|
|
impl Default for FlexDirection {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Whether to show or hide overflowing items
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Reflect, Serialize, Deserialize)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub struct Overflow {
|
|
/// Whether to show or clip overflowing items on the x axis
|
|
pub x: OverflowAxis,
|
|
/// Whether to show or clip overflowing items on the y axis
|
|
pub y: OverflowAxis,
|
|
}
|
|
|
|
impl Overflow {
|
|
pub const DEFAULT: Self = Self {
|
|
x: OverflowAxis::DEFAULT,
|
|
y: OverflowAxis::DEFAULT,
|
|
};
|
|
|
|
/// Show overflowing items on both axes
|
|
pub const fn visible() -> Self {
|
|
Self {
|
|
x: OverflowAxis::Visible,
|
|
y: OverflowAxis::Visible,
|
|
}
|
|
}
|
|
|
|
/// Clip overflowing items on both axes
|
|
pub const fn clip() -> Self {
|
|
Self {
|
|
x: OverflowAxis::Clip,
|
|
y: OverflowAxis::Clip,
|
|
}
|
|
}
|
|
|
|
/// Clip overflowing items on the x axis
|
|
pub const fn clip_x() -> Self {
|
|
Self {
|
|
x: OverflowAxis::Clip,
|
|
y: OverflowAxis::Visible,
|
|
}
|
|
}
|
|
|
|
/// Clip overflowing items on the y axis
|
|
pub const fn clip_y() -> Self {
|
|
Self {
|
|
x: OverflowAxis::Visible,
|
|
y: OverflowAxis::Clip,
|
|
}
|
|
}
|
|
|
|
/// Overflow is visible on both axes
|
|
pub const fn is_visible(&self) -> bool {
|
|
self.x.is_visible() && self.y.is_visible()
|
|
}
|
|
}
|
|
|
|
impl Default for Overflow {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Whether to show or hide overflowing items
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Reflect, Serialize, Deserialize)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum OverflowAxis {
|
|
/// Show overflowing items.
|
|
Visible,
|
|
/// Hide overflowing items.
|
|
Clip,
|
|
}
|
|
|
|
impl OverflowAxis {
|
|
pub const DEFAULT: Self = Self::Visible;
|
|
|
|
/// Overflow is visible on this axis
|
|
pub const fn is_visible(&self) -> bool {
|
|
matches!(self, Self::Visible)
|
|
}
|
|
}
|
|
|
|
impl Default for OverflowAxis {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// The strategy used to position this node
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum PositionType {
|
|
/// Relative to all other nodes with the [`PositionType::Relative`] value.
|
|
Relative,
|
|
/// Independent of all other nodes, but relative to its parent node.
|
|
Absolute,
|
|
}
|
|
|
|
impl PositionType {
|
|
pub const DEFAULT: Self = Self::Relative;
|
|
}
|
|
|
|
impl Default for PositionType {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines if flexbox items appear on a single line or on multiple lines
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum FlexWrap {
|
|
/// Single line, will overflow if needed.
|
|
NoWrap,
|
|
/// Multiple lines, if needed.
|
|
Wrap,
|
|
/// Same as [`FlexWrap::Wrap`] but new lines will appear before the previous one.
|
|
WrapReverse,
|
|
}
|
|
|
|
impl FlexWrap {
|
|
pub const DEFAULT: Self = Self::NoWrap;
|
|
}
|
|
|
|
impl Default for FlexWrap {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Controls whether grid items are placed row-wise or column-wise as well as whether the sparse or dense packing algorithm is used.
|
|
///
|
|
/// The "dense" packing algorithm attempts to fill in holes earlier in the grid, if smaller items come up later.
|
|
/// This may cause items to appear out-of-order when doing so would fill in holes left by larger items.
|
|
///
|
|
/// Defaults to [`GridAutoFlow::Row`].
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-flow>
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum GridAutoFlow {
|
|
/// Items are placed by filling each row in turn, adding new rows as necessary.
|
|
Row,
|
|
/// Items are placed by filling each column in turn, adding new columns as necessary.
|
|
Column,
|
|
/// Combines `Row` with the dense packing algorithm.
|
|
RowDense,
|
|
/// Combines `Column` with the dense packing algorithm.
|
|
ColumnDense,
|
|
}
|
|
|
|
impl GridAutoFlow {
|
|
pub const DEFAULT: Self = Self::Row;
|
|
}
|
|
|
|
impl Default for GridAutoFlow {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect_value(PartialEq, Serialize, Deserialize)]
|
|
pub enum MinTrackSizingFunction {
|
|
/// Track minimum size should be a fixed pixel value
|
|
Px(f32),
|
|
/// Track minimum size should be a percentage value
|
|
Percent(f32),
|
|
/// Track minimum size should be content sized under a min-content constraint
|
|
MinContent,
|
|
/// Track minimum size should be content sized under a max-content constraint
|
|
MaxContent,
|
|
/// Track minimum size should be automatically sized
|
|
Auto,
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect_value(PartialEq, Serialize, Deserialize)]
|
|
pub enum MaxTrackSizingFunction {
|
|
/// Track maximum size should be a fixed pixel value
|
|
Px(f32),
|
|
/// Track maximum size should be a percentage value
|
|
Percent(f32),
|
|
/// Track maximum size should be content sized under a min-content constraint
|
|
MinContent,
|
|
/// Track maximum size should be content sized under a max-content constraint
|
|
MaxContent,
|
|
/// Track maximum size should be sized according to the fit-content formula with a fixed pixel limit
|
|
FitContentPx(f32),
|
|
/// Track maximum size should be sized according to the fit-content formula with a percentage limit
|
|
FitContentPercent(f32),
|
|
/// Track maximum size should be automatically sized
|
|
Auto,
|
|
/// The dimension as a fraction of the total available grid space (`fr` units in CSS)
|
|
/// Specified value is the numerator of the fraction. Denominator is the sum of all fractions specified in that grid dimension.
|
|
///
|
|
/// Spec: <https://www.w3.org/TR/css3-grid-layout/#fr-unit>
|
|
Fraction(f32),
|
|
}
|
|
|
|
/// A [`GridTrack`] is a Row or Column of a CSS Grid. This struct specifies what size the track should be.
|
|
/// See below for the different "track sizing functions" you can specify.
|
|
#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub struct GridTrack {
|
|
pub(crate) min_sizing_function: MinTrackSizingFunction,
|
|
pub(crate) max_sizing_function: MaxTrackSizingFunction,
|
|
}
|
|
|
|
impl GridTrack {
|
|
pub const DEFAULT: Self = Self {
|
|
min_sizing_function: MinTrackSizingFunction::Auto,
|
|
max_sizing_function: MaxTrackSizingFunction::Auto,
|
|
};
|
|
|
|
/// Create a grid track with a fixed pixel size
|
|
pub fn px<T: From<Self>>(value: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Px(value),
|
|
max_sizing_function: MaxTrackSizingFunction::Px(value),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track with a percentage size
|
|
pub fn percent<T: From<Self>>(value: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Percent(value),
|
|
max_sizing_function: MaxTrackSizingFunction::Percent(value),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track with an `fr` size.
|
|
/// Note that this will give the track a content-based minimum size.
|
|
/// Usually you are best off using `GridTrack::flex` instead which uses a zero minimum size.
|
|
pub fn fr<T: From<Self>>(value: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Auto,
|
|
max_sizing_function: MaxTrackSizingFunction::Fraction(value),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track with a `minmax(0, Nfr)` size.
|
|
pub fn flex<T: From<Self>>(value: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Px(0.0),
|
|
max_sizing_function: MaxTrackSizingFunction::Fraction(value),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track which is automatically sized to fit its contents.
|
|
pub fn auto<T: From<Self>>() -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Auto,
|
|
max_sizing_function: MaxTrackSizingFunction::Auto,
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track which is automatically sized to fit its contents when sized at their "min-content" sizes
|
|
pub fn min_content<T: From<Self>>() -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::MinContent,
|
|
max_sizing_function: MaxTrackSizingFunction::MinContent,
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a grid track which is automatically sized to fit its contents when sized at their "max-content" sizes
|
|
pub fn max_content<T: From<Self>>() -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::MaxContent,
|
|
max_sizing_function: MaxTrackSizingFunction::MaxContent,
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a fit-content() grid track with fixed pixel limit
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/fit-content_function>
|
|
pub fn fit_content_px<T: From<Self>>(limit: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Auto,
|
|
max_sizing_function: MaxTrackSizingFunction::FitContentPx(limit),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a fit-content() grid track with percentage limit
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/fit-content_function>
|
|
pub fn fit_content_percent<T: From<Self>>(limit: f32) -> T {
|
|
Self {
|
|
min_sizing_function: MinTrackSizingFunction::Auto,
|
|
max_sizing_function: MaxTrackSizingFunction::FitContentPercent(limit),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a minmax() grid track
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/minmax>
|
|
pub fn minmax<T: From<Self>>(min: MinTrackSizingFunction, max: MaxTrackSizingFunction) -> T {
|
|
Self {
|
|
min_sizing_function: min,
|
|
max_sizing_function: max,
|
|
}
|
|
.into()
|
|
}
|
|
}
|
|
|
|
impl Default for GridTrack {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
/// How many times to repeat a repeated grid track
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/repeat>
|
|
pub enum GridTrackRepetition {
|
|
/// Repeat the track fixed number of times
|
|
Count(u16),
|
|
/// Repeat the track to fill available space
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/repeat#auto-fill>
|
|
AutoFill,
|
|
/// Repeat the track to fill available space but collapse any tracks that do not end up with
|
|
/// an item placed in them.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/repeat#auto-fit>
|
|
AutoFit,
|
|
}
|
|
|
|
impl From<u16> for GridTrackRepetition {
|
|
fn from(count: u16) -> Self {
|
|
Self::Count(count)
|
|
}
|
|
}
|
|
|
|
impl From<i32> for GridTrackRepetition {
|
|
fn from(count: i32) -> Self {
|
|
Self::Count(count as u16)
|
|
}
|
|
}
|
|
|
|
impl From<usize> for GridTrackRepetition {
|
|
fn from(count: usize) -> Self {
|
|
Self::Count(count as u16)
|
|
}
|
|
}
|
|
|
|
/// Represents a *possibly* repeated [`GridTrack`].
|
|
///
|
|
/// The repetition parameter can either be:
|
|
/// - The integer `1`, in which case the track is non-repeated.
|
|
/// - a `u16` count to repeat the track N times.
|
|
/// - A `GridTrackRepetition::AutoFit` or `GridTrackRepetition::AutoFill`.
|
|
///
|
|
/// Note: that in the common case you want a non-repeating track (repetition count 1), you may use the constructor methods on [`GridTrack`]
|
|
/// to create a `RepeatedGridTrack`. i.e. `GridTrack::px(10.0)` is equivalent to `RepeatedGridTrack::px(1, 10.0)`.
|
|
///
|
|
/// You may only use one auto-repetition per track list. And if your track list contains an auto repetition
|
|
/// then all tracks (in and outside of the repetition) must be fixed size (px or percent). Integer repetitions are just shorthand for writing out
|
|
/// N tracks longhand and are not subject to the same limitations.
|
|
#[derive(Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub struct RepeatedGridTrack {
|
|
pub(crate) repetition: GridTrackRepetition,
|
|
pub(crate) tracks: SmallVec<[GridTrack; 1]>,
|
|
}
|
|
|
|
impl RepeatedGridTrack {
|
|
/// Create a repeating set of grid tracks with a fixed pixel size
|
|
pub fn px<T: From<Self>>(repetition: impl Into<GridTrackRepetition>, value: f32) -> T {
|
|
Self {
|
|
repetition: repetition.into(),
|
|
tracks: SmallVec::from_buf([GridTrack::px(value)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with a percentage size
|
|
pub fn percent<T: From<Self>>(repetition: impl Into<GridTrackRepetition>, value: f32) -> T {
|
|
Self {
|
|
repetition: repetition.into(),
|
|
tracks: SmallVec::from_buf([GridTrack::percent(value)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with automatic size
|
|
pub fn auto<T: From<Self>>(repetition: u16) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::auto()]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with an `fr` size.
|
|
/// Note that this will give the track a content-based minimum size.
|
|
/// Usually you are best off using `GridTrack::flex` instead which uses a zero minimum size.
|
|
pub fn fr<T: From<Self>>(repetition: u16, value: f32) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::fr(value)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with a `minmax(0, Nfr)` size.
|
|
pub fn flex<T: From<Self>>(repetition: u16, value: f32) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::flex(value)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with min-content size
|
|
pub fn min_content<T: From<Self>>(repetition: u16) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::min_content()]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of grid tracks with max-content size
|
|
pub fn max_content<T: From<Self>>(repetition: u16) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::max_content()]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of fit-content() grid tracks with fixed pixel limit
|
|
pub fn fit_content_px<T: From<Self>>(repetition: u16, limit: f32) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::fit_content_px(limit)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of fit-content() grid tracks with percentage limit
|
|
pub fn fit_content_percent<T: From<Self>>(repetition: u16, limit: f32) -> T {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(repetition),
|
|
tracks: SmallVec::from_buf([GridTrack::fit_content_percent(limit)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repeating set of minmax() grid track
|
|
pub fn minmax<T: From<Self>>(
|
|
repetition: impl Into<GridTrackRepetition>,
|
|
min: MinTrackSizingFunction,
|
|
max: MaxTrackSizingFunction,
|
|
) -> T {
|
|
Self {
|
|
repetition: repetition.into(),
|
|
tracks: SmallVec::from_buf([GridTrack::minmax(min, max)]),
|
|
}
|
|
.into()
|
|
}
|
|
|
|
/// Create a repetition of a set of tracks
|
|
pub fn repeat_many<T: From<Self>>(
|
|
repetition: impl Into<GridTrackRepetition>,
|
|
tracks: impl Into<Vec<GridTrack>>,
|
|
) -> T {
|
|
Self {
|
|
repetition: repetition.into(),
|
|
tracks: SmallVec::from_vec(tracks.into()),
|
|
}
|
|
.into()
|
|
}
|
|
}
|
|
|
|
impl From<GridTrack> for RepeatedGridTrack {
|
|
fn from(track: GridTrack) -> Self {
|
|
Self {
|
|
repetition: GridTrackRepetition::Count(1),
|
|
tracks: SmallVec::from_buf([track]),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<GridTrack> for Vec<GridTrack> {
|
|
fn from(track: GridTrack) -> Self {
|
|
vec![GridTrack {
|
|
min_sizing_function: track.min_sizing_function,
|
|
max_sizing_function: track.max_sizing_function,
|
|
}]
|
|
}
|
|
}
|
|
|
|
impl From<GridTrack> for Vec<RepeatedGridTrack> {
|
|
fn from(track: GridTrack) -> Self {
|
|
vec![RepeatedGridTrack {
|
|
repetition: GridTrackRepetition::Count(1),
|
|
tracks: SmallVec::from_buf([track]),
|
|
}]
|
|
}
|
|
}
|
|
|
|
impl From<RepeatedGridTrack> for Vec<RepeatedGridTrack> {
|
|
fn from(track: RepeatedGridTrack) -> Self {
|
|
vec![track]
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
/// Represents the position of a grid item in a single axis.
|
|
///
|
|
/// There are 3 fields which may be set:
|
|
/// - `start`: which grid line the item should start at
|
|
/// - `end`: which grid line the item should end at
|
|
/// - `span`: how many tracks the item should span
|
|
///
|
|
/// The default `span` is 1. If neither `start` or `end` is set then the item will be placed automatically.
|
|
///
|
|
/// Generally, at most two fields should be set. If all three fields are specified then `span` will be ignored. If `end` specifies an earlier
|
|
/// grid line than `start` then `end` will be ignored and the item will have a span of 1.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Line-based_Placement_with_CSS_Grid>
|
|
pub struct GridPlacement {
|
|
/// The grid line at which the item should start.
|
|
/// Lines are 1-indexed.
|
|
/// Negative indexes count backwards from the end of the grid.
|
|
/// Zero is not a valid index.
|
|
pub(crate) start: Option<NonZeroI16>,
|
|
/// How many grid tracks the item should span.
|
|
/// Defaults to 1.
|
|
pub(crate) span: Option<NonZeroU16>,
|
|
/// The grid line at which the item should end.
|
|
/// Lines are 1-indexed.
|
|
/// Negative indexes count backwards from the end of the grid.
|
|
/// Zero is not a valid index.
|
|
pub(crate) end: Option<NonZeroI16>,
|
|
}
|
|
|
|
impl GridPlacement {
|
|
pub const DEFAULT: Self = Self {
|
|
start: None,
|
|
// SAFETY: This is trivially safe as 1 is non-zero.
|
|
span: Some(unsafe { NonZeroU16::new_unchecked(1) }),
|
|
end: None,
|
|
};
|
|
|
|
/// Place the grid item automatically (letting the `span` default to `1`).
|
|
pub fn auto() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
|
|
/// Place the grid item automatically, specifying how many tracks it should `span`.
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `span` is `0`.
|
|
pub fn span(span: u16) -> Self {
|
|
Self {
|
|
start: None,
|
|
end: None,
|
|
span: try_into_grid_span(span).expect("Invalid span value of 0."),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `start` grid line (letting the `span` default to `1`).
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `start` is `0`.
|
|
pub fn start(start: i16) -> Self {
|
|
Self {
|
|
start: try_into_grid_index(start).expect("Invalid start value of 0."),
|
|
..Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `end` grid line (letting the `span` default to `1`).
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `end` is `0`.
|
|
pub fn end(end: i16) -> Self {
|
|
Self {
|
|
end: try_into_grid_index(end).expect("Invalid end value of 0."),
|
|
..Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `start` grid line and how many tracks it should `span`.
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `start` or `span` is `0`.
|
|
pub fn start_span(start: i16, span: u16) -> Self {
|
|
Self {
|
|
start: try_into_grid_index(start).expect("Invalid start value of 0."),
|
|
end: None,
|
|
span: try_into_grid_span(span).expect("Invalid span value of 0."),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying `start` and `end` grid lines (`span` will be inferred)
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `start` or `end` is `0`.
|
|
pub fn start_end(start: i16, end: i16) -> Self {
|
|
Self {
|
|
start: try_into_grid_index(start).expect("Invalid start value of 0."),
|
|
end: try_into_grid_index(end).expect("Invalid end value of 0."),
|
|
span: None,
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `end` grid line and how many tracks it should `span`.
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `end` or `span` is `0`.
|
|
pub fn end_span(end: i16, span: u16) -> Self {
|
|
Self {
|
|
start: None,
|
|
end: try_into_grid_index(end).expect("Invalid end value of 0."),
|
|
span: try_into_grid_span(span).expect("Invalid span value of 0."),
|
|
}
|
|
}
|
|
|
|
/// Mutate the item, setting the `start` grid line
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `start` is `0`.
|
|
pub fn set_start(mut self, start: i16) -> Self {
|
|
self.start = try_into_grid_index(start).expect("Invalid start value of 0.");
|
|
self
|
|
}
|
|
|
|
/// Mutate the item, setting the `end` grid line
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `end` is `0`.
|
|
pub fn set_end(mut self, end: i16) -> Self {
|
|
self.end = try_into_grid_index(end).expect("Invalid end value of 0.");
|
|
self
|
|
}
|
|
|
|
/// Mutate the item, setting the number of tracks the item should `span`
|
|
///
|
|
/// # Panics
|
|
///
|
|
/// Panics if `span` is `0`.
|
|
pub fn set_span(mut self, span: u16) -> Self {
|
|
self.span = try_into_grid_span(span).expect("Invalid span value of 0.");
|
|
self
|
|
}
|
|
|
|
/// Returns the grid line at which the item should start, or `None` if not set.
|
|
pub fn get_start(self) -> Option<i16> {
|
|
self.start.map(NonZeroI16::get)
|
|
}
|
|
|
|
/// Returns the grid line at which the item should end, or `None` if not set.
|
|
pub fn get_end(self) -> Option<i16> {
|
|
self.end.map(NonZeroI16::get)
|
|
}
|
|
|
|
/// Returns span for this grid item, or `None` if not set.
|
|
pub fn get_span(self) -> Option<u16> {
|
|
self.span.map(NonZeroU16::get)
|
|
}
|
|
}
|
|
|
|
impl Default for GridPlacement {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Convert an `i16` to `NonZeroI16`, fails on `0` and returns the `InvalidZeroIndex` error.
|
|
fn try_into_grid_index(index: i16) -> Result<Option<NonZeroI16>, GridPlacementError> {
|
|
Ok(Some(
|
|
NonZeroI16::new(index).ok_or(GridPlacementError::InvalidZeroIndex)?,
|
|
))
|
|
}
|
|
|
|
/// Convert a `u16` to `NonZeroU16`, fails on `0` and returns the `InvalidZeroSpan` error.
|
|
fn try_into_grid_span(span: u16) -> Result<Option<NonZeroU16>, GridPlacementError> {
|
|
Ok(Some(
|
|
NonZeroU16::new(span).ok_or(GridPlacementError::InvalidZeroSpan)?,
|
|
))
|
|
}
|
|
|
|
/// Errors that occur when setting constraints for a `GridPlacement`
|
|
#[derive(Debug, Eq, PartialEq, Clone, Copy, Error)]
|
|
pub enum GridPlacementError {
|
|
#[error("Zero is not a valid grid position")]
|
|
InvalidZeroIndex,
|
|
#[error("Spans cannot be zero length")]
|
|
InvalidZeroSpan,
|
|
}
|
|
|
|
/// The background color of the node
|
|
///
|
|
/// This serves as the "fill" color.
|
|
/// When combined with [`UiImage`], tints the provided texture.
|
|
#[derive(Component, Copy, Clone, Debug, Deserialize, Serialize, Reflect)]
|
|
#[reflect(Component, Default, Deserialize, Serialize)]
|
|
pub struct BackgroundColor(pub Color);
|
|
|
|
impl BackgroundColor {
|
|
pub const DEFAULT: Self = Self(Color::WHITE);
|
|
}
|
|
|
|
impl Default for BackgroundColor {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
impl From<Color> for BackgroundColor {
|
|
fn from(color: Color) -> Self {
|
|
Self(color)
|
|
}
|
|
}
|
|
|
|
/// The atlas sprite to be used in a UI Texture Atlas Node
|
|
#[derive(Component, Clone, Debug, Reflect, Default)]
|
|
#[reflect(Component, Default)]
|
|
pub struct UiTextureAtlasImage {
|
|
/// Texture index in the TextureAtlas
|
|
pub index: usize,
|
|
/// Whether to flip the sprite in the X axis
|
|
pub flip_x: bool,
|
|
/// Whether to flip the sprite in the Y axis
|
|
pub flip_y: bool,
|
|
}
|
|
|
|
/// The border color of the UI node.
|
|
#[derive(Component, Copy, Clone, Debug, Deserialize, Serialize, Reflect)]
|
|
#[reflect(Component, Default, Deserialize, Serialize)]
|
|
pub struct BorderColor(pub Color);
|
|
|
|
impl From<Color> for BorderColor {
|
|
fn from(color: Color) -> Self {
|
|
Self(color)
|
|
}
|
|
}
|
|
|
|
impl BorderColor {
|
|
pub const DEFAULT: Self = BorderColor(Color::WHITE);
|
|
}
|
|
|
|
impl Default for BorderColor {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
#[derive(Component, Copy, Clone, Default, Debug, Deserialize, Serialize, Reflect)]
|
|
#[reflect(Component, Default, Deserialize, Serialize)]
|
|
/// The [`Outline`] component adds an outline outside the edge of a UI node.
|
|
/// Outlines do not take up space in the layout.
|
|
///
|
|
/// To add an [`Outline`] to a ui node you can spawn a `(NodeBundle, Outline)` tuple bundle:
|
|
/// ```
|
|
/// # use bevy_ecs::prelude::*;
|
|
/// # use bevy_ui::prelude::*;
|
|
/// # use bevy_render::prelude::Color;
|
|
/// fn setup_ui(mut commands: Commands) {
|
|
/// commands.spawn((
|
|
/// NodeBundle {
|
|
/// style: Style {
|
|
/// width: Val::Px(100.),
|
|
/// height: Val::Px(100.),
|
|
/// ..Default::default()
|
|
/// },
|
|
/// background_color: Color::BLUE.into(),
|
|
/// ..Default::default()
|
|
/// },
|
|
/// Outline::new(Val::Px(10.), Val::ZERO, Color::RED)
|
|
/// ));
|
|
/// }
|
|
/// ```
|
|
///
|
|
/// [`Outline`] components can also be added later to existing UI nodes:
|
|
/// ```
|
|
/// # use bevy_ecs::prelude::*;
|
|
/// # use bevy_ui::prelude::*;
|
|
/// # use bevy_render::prelude::Color;
|
|
/// fn outline_hovered_button_system(
|
|
/// mut commands: Commands,
|
|
/// mut node_query: Query<(Entity, &Interaction, Option<&mut Outline>), Changed<Interaction>>,
|
|
/// ) {
|
|
/// for (entity, interaction, mut maybe_outline) in node_query.iter_mut() {
|
|
/// let outline_color =
|
|
/// if matches!(*interaction, Interaction::Hovered) {
|
|
/// Color::WHITE
|
|
/// } else {
|
|
/// Color::NONE
|
|
/// };
|
|
/// if let Some(mut outline) = maybe_outline {
|
|
/// outline.color = outline_color;
|
|
/// } else {
|
|
/// commands.entity(entity).insert(Outline::new(Val::Px(10.), Val::ZERO, outline_color));
|
|
/// }
|
|
/// }
|
|
/// }
|
|
/// ```
|
|
/// Inserting and removing an [`Outline`] component repeatedly will result in table moves, so it is generally preferable to
|
|
/// set `Outline::color` to `Color::NONE` to hide an outline.
|
|
pub struct Outline {
|
|
/// The width of the outline.
|
|
///
|
|
/// Percentage `Val` values are resolved based on the width of the outlined [`Node`].
|
|
pub width: Val,
|
|
/// The amount of space between a node's outline the edge of the node.
|
|
///
|
|
/// Percentage `Val` values are resolved based on the width of the outlined [`Node`].
|
|
pub offset: Val,
|
|
/// The color of the outline.
|
|
///
|
|
/// If you are frequently toggling outlines for a UI node on and off it is recommended to set `Color::None` to hide the outline.
|
|
/// This avoids the table moves that would occur from the repeated insertion and removal of the `Outline` component.
|
|
pub color: Color,
|
|
}
|
|
|
|
impl Outline {
|
|
/// Create a new outline
|
|
pub const fn new(width: Val, offset: Val, color: Color) -> Self {
|
|
Self {
|
|
width,
|
|
offset,
|
|
color,
|
|
}
|
|
}
|
|
}
|
|
|
|
/// The 2D texture displayed for this UI node
|
|
#[derive(Component, Clone, Debug, Reflect, Default)]
|
|
#[reflect(Component, Default)]
|
|
pub struct UiImage {
|
|
/// Handle to the texture
|
|
pub texture: Handle<Image>,
|
|
/// Whether the image should be flipped along its x-axis
|
|
pub flip_x: bool,
|
|
/// Whether the image should be flipped along its y-axis
|
|
pub flip_y: bool,
|
|
}
|
|
|
|
impl UiImage {
|
|
pub fn new(texture: Handle<Image>) -> Self {
|
|
Self {
|
|
texture,
|
|
..Default::default()
|
|
}
|
|
}
|
|
|
|
/// Flip the image along its x-axis
|
|
#[must_use]
|
|
pub const fn with_flip_x(mut self) -> Self {
|
|
self.flip_x = true;
|
|
self
|
|
}
|
|
|
|
/// Flip the image along its y-axis
|
|
#[must_use]
|
|
pub const fn with_flip_y(mut self) -> Self {
|
|
self.flip_y = true;
|
|
self
|
|
}
|
|
}
|
|
|
|
impl From<Handle<Image>> for UiImage {
|
|
fn from(texture: Handle<Image>) -> Self {
|
|
Self::new(texture)
|
|
}
|
|
}
|
|
|
|
/// The calculated clip of the node
|
|
#[derive(Component, Default, Copy, Clone, Debug, Reflect)]
|
|
#[reflect(Component)]
|
|
pub struct CalculatedClip {
|
|
/// The rect of the clip
|
|
pub clip: Rect,
|
|
}
|
|
|
|
/// Indicates that this [`Node`] entity's front-to-back ordering is not controlled solely
|
|
/// by its location in the UI hierarchy. A node with a higher z-index will appear on top
|
|
/// of other nodes with a lower z-index.
|
|
///
|
|
/// UI nodes that have the same z-index will appear according to the order in which they
|
|
/// appear in the UI hierarchy. In such a case, the last node to be added to its parent
|
|
/// will appear in front of its siblings.
|
|
///
|
|
/// Internally, nodes with a global z-index share the stacking context of root UI nodes
|
|
/// (nodes that have no parent). Because of this, there is no difference between using
|
|
/// `ZIndex::Local(n)` and `ZIndex::Global(n)` for root nodes.
|
|
///
|
|
/// Nodes without this component will be treated as if they had a value of `ZIndex::Local(0)`.
|
|
#[derive(Component, Copy, Clone, Debug, Reflect)]
|
|
#[reflect(Component)]
|
|
pub enum ZIndex {
|
|
/// Indicates the order in which this node should be rendered relative to its siblings.
|
|
Local(i32),
|
|
/// Indicates the order in which this node should be rendered relative to root nodes and
|
|
/// all other nodes that have a global z-index.
|
|
Global(i32),
|
|
}
|
|
|
|
impl Default for ZIndex {
|
|
fn default() -> Self {
|
|
Self::Local(0)
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use crate::GridPlacement;
|
|
|
|
#[test]
|
|
fn invalid_grid_placement_values() {
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::span(0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::start(0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::end(0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::start_end(0, 1)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::start_end(-1, 0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::start_span(1, 0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::start_span(0, 1)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::end_span(0, 1)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::end_span(1, 0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::default().set_start(0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::default().set_end(0)).is_err());
|
|
assert!(std::panic::catch_unwind(|| GridPlacement::default().set_span(0)).is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn grid_placement_accessors() {
|
|
assert_eq!(GridPlacement::start(5).get_start(), Some(5));
|
|
assert_eq!(GridPlacement::end(-4).get_end(), Some(-4));
|
|
assert_eq!(GridPlacement::span(2).get_span(), Some(2));
|
|
assert_eq!(GridPlacement::start_end(11, 21).get_span(), None);
|
|
assert_eq!(GridPlacement::start_span(3, 5).get_end(), None);
|
|
assert_eq!(GridPlacement::end_span(-4, 12).get_start(), None);
|
|
}
|
|
}
|