mirror of
https://github.com/bevyengine/bevy
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30ac157b80
# Objective Fixes #8415. ## Solution I simply added the missing types to the type registry. ## Changelog Added `#[reflect(Component]` to `bevi_ui::ui_node::ZIndex`, since it impls `Component` and `Reflect.` The following types have been added to the type registry: 1. `bevy_ui::ZIndex` 2. `bevy_math::Rect` 3. `bevy_text::BreakLineOn` 4. `bevy_text::Text2dBounds`
1709 lines
59 KiB
Rust
1709 lines
59 KiB
Rust
use crate::{Size, UiRect};
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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::{
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color::Color,
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texture::{Image, DEFAULT_IMAGE_HANDLE},
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};
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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::ops::{Div, DivAssign, Mul, MulAssign};
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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, Clone, Reflect)]
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#[reflect(Component, Default)]
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pub struct Node {
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/// The size of the node as width and height in logical pixels
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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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}
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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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/// automatically calculated by [`super::layout::ui_layout_system`]
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pub fn size(&self) -> Vec2 {
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self.calculated_size
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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(&self, transform: &GlobalTransform, scale_factor: f32) -> Rect {
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let rect = self.logical_rect(transform);
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Rect {
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min: rect.min / scale_factor,
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max: rect.max / scale_factor,
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}
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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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calculated_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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/// Represents the possible value types for layout properties.
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///
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/// This enum allows specifying values for various [`Style`] properties in different units,
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/// such as logical pixels, percentages, or automatically determined values.
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#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect)]
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#[reflect(PartialEq, Serialize, Deserialize)]
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pub enum Val {
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/// Automatically determine the value based on the context and other `Style` properties.
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Auto,
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/// Set this value in logical pixels.
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Px(f32),
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/// Set the value as a percentage of its parent node's length along a specific axis.
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///
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/// If the UI node has no parent, the percentage is calculated based on the window's length
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/// along the corresponding axis.
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///
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/// The chosen axis depends on the `Style` field set:
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/// * For `flex_basis`, the percentage is relative to the main-axis length determined by the `flex_direction`.
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/// * For `gap`, `min_size`, `size`, and `max_size`:
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/// - `width` is relative to the parent's width.
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/// - `height` is relative to the parent's height.
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/// * For `margin`, `padding`, and `border` values: the percentage is relative to the parent node's width.
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/// * For positions, `left` and `right` are relative to the parent's width, while `bottom` and `top` are relative to the parent's height.
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Percent(f32),
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/// Set this value in percent of the viewport width
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Vw(f32),
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/// Set this value in percent of the viewport height
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Vh(f32),
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/// Set this value in percent of the viewport's smaller dimension.
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VMin(f32),
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/// Set this value in percent of the viewport's larger dimension.
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VMax(f32),
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}
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impl Val {
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pub const DEFAULT: Self = Self::Auto;
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}
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impl Default for Val {
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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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impl Mul<f32> for Val {
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type Output = Val;
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fn mul(self, rhs: f32) -> Self::Output {
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match self {
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Val::Auto => Val::Auto,
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Val::Px(value) => Val::Px(value * rhs),
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Val::Percent(value) => Val::Percent(value * rhs),
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Val::Vw(value) => Val::Vw(value * rhs),
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Val::Vh(value) => Val::Vh(value * rhs),
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Val::VMin(value) => Val::VMin(value * rhs),
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Val::VMax(value) => Val::VMax(value * rhs),
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}
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}
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}
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impl MulAssign<f32> for Val {
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fn mul_assign(&mut self, rhs: f32) {
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match self {
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Val::Auto => {}
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Val::Px(value)
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| Val::Percent(value)
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| Val::Vw(value)
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| Val::Vh(value)
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| Val::VMin(value)
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| Val::VMax(value) => *value *= rhs,
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}
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}
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}
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impl Div<f32> for Val {
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type Output = Val;
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fn div(self, rhs: f32) -> Self::Output {
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match self {
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Val::Auto => Val::Auto,
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Val::Px(value) => Val::Px(value / rhs),
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Val::Percent(value) => Val::Percent(value / rhs),
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Val::Vw(value) => Val::Vw(value / rhs),
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Val::Vh(value) => Val::Vh(value / rhs),
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Val::VMin(value) => Val::VMin(value / rhs),
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Val::VMax(value) => Val::VMax(value / rhs),
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}
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}
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}
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impl DivAssign<f32> for Val {
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fn div_assign(&mut self, rhs: f32) {
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match self {
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Val::Auto => {}
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Val::Px(value)
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| Val::Percent(value)
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| Val::Vw(value)
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| Val::Vh(value)
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| Val::VMin(value)
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| Val::VMax(value) => *value /= rhs,
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}
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}
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}
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#[derive(Debug, Eq, PartialEq, Clone, Copy, Error)]
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pub enum ValArithmeticError {
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#[error("the variants of the Vals don't match")]
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NonIdenticalVariants,
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#[error("the given variant of Val is not evaluateable (non-numeric)")]
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NonEvaluateable,
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}
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impl Val {
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/// Tries to add the values of two [`Val`]s.
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/// Returns [`ValArithmeticError::NonIdenticalVariants`] if two [`Val`]s are of different variants.
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/// When adding non-numeric [`Val`]s, it returns the value unchanged.
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pub fn try_add(&self, rhs: Val) -> Result<Val, ValArithmeticError> {
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match (self, rhs) {
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(Val::Auto, Val::Auto) => Ok(*self),
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(Val::Px(value), Val::Px(rhs_value)) => Ok(Val::Px(value + rhs_value)),
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(Val::Percent(value), Val::Percent(rhs_value)) => Ok(Val::Percent(value + rhs_value)),
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_ => Err(ValArithmeticError::NonIdenticalVariants),
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}
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}
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/// Adds `rhs` to `self` and assigns the result to `self` (see [`Val::try_add`])
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pub fn try_add_assign(&mut self, rhs: Val) -> Result<(), ValArithmeticError> {
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*self = self.try_add(rhs)?;
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Ok(())
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}
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/// Tries to subtract the values of two [`Val`]s.
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/// Returns [`ValArithmeticError::NonIdenticalVariants`] if two [`Val`]s are of different variants.
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/// When adding non-numeric [`Val`]s, it returns the value unchanged.
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pub fn try_sub(&self, rhs: Val) -> Result<Val, ValArithmeticError> {
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match (self, rhs) {
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(Val::Auto, Val::Auto) => Ok(*self),
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(Val::Px(value), Val::Px(rhs_value)) => Ok(Val::Px(value - rhs_value)),
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(Val::Percent(value), Val::Percent(rhs_value)) => Ok(Val::Percent(value - rhs_value)),
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_ => Err(ValArithmeticError::NonIdenticalVariants),
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}
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}
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/// Subtracts `rhs` from `self` and assigns the result to `self` (see [`Val::try_sub`])
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pub fn try_sub_assign(&mut self, rhs: Val) -> Result<(), ValArithmeticError> {
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*self = self.try_sub(rhs)?;
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Ok(())
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}
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/// A convenience function for simple evaluation of [`Val::Percent`] variant into a concrete [`Val::Px`] value.
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/// Returns a [`ValArithmeticError::NonEvaluateable`] if the [`Val`] is impossible to evaluate into [`Val::Px`].
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/// Otherwise it returns an [`f32`] containing the evaluated value in pixels.
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///
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/// **Note:** If a [`Val::Px`] is evaluated, it's inner value returned unchanged.
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pub fn evaluate(&self, size: f32) -> Result<f32, ValArithmeticError> {
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match self {
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Val::Percent(value) => Ok(size * value / 100.0),
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Val::Px(value) => Ok(*value),
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_ => Err(ValArithmeticError::NonEvaluateable),
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}
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}
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/// Similar to [`Val::try_add`], but performs [`Val::evaluate`] on both values before adding.
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/// Returns an [`f32`] value in pixels.
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pub fn try_add_with_size(&self, rhs: Val, size: f32) -> Result<f32, ValArithmeticError> {
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let lhs = self.evaluate(size)?;
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let rhs = rhs.evaluate(size)?;
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Ok(lhs + rhs)
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}
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/// Similar to [`Val::try_add_assign`], but performs [`Val::evaluate`] on both values before adding.
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/// The value gets converted to [`Val::Px`].
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pub fn try_add_assign_with_size(
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&mut self,
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rhs: Val,
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size: f32,
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) -> Result<(), ValArithmeticError> {
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*self = Val::Px(self.evaluate(size)? + rhs.evaluate(size)?);
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Ok(())
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}
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/// Similar to [`Val::try_sub`], but performs [`Val::evaluate`] on both values before subtracting.
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/// Returns an [`f32`] value in pixels.
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pub fn try_sub_with_size(&self, rhs: Val, size: f32) -> Result<f32, ValArithmeticError> {
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let lhs = self.evaluate(size)?;
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let rhs = rhs.evaluate(size)?;
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Ok(lhs - rhs)
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}
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/// Similar to [`Val::try_sub_assign`], but performs [`Val::evaluate`] on both values before adding.
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/// The value gets converted to [`Val::Px`].
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pub fn try_sub_assign_with_size(
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&mut self,
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rhs: Val,
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size: f32,
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) -> Result<(), ValArithmeticError> {
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*self = Val::Px(self.try_add_with_size(rhs, size)?);
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Ok(())
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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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/// Node's can be laid out using either Flexbox or CSS Grid Layout.<br />
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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 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 Flexbox](https://css-tricks.com/snippets/css/a-guide-to-flexbox/) by CSS Tricks. This is detailed guide with illustrations and comphrehensive 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 Flebox 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 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 CSS Grid](https://css-tricks.com/snippets/css/complete-guide-grid/) by CSS Tricks. This is detailed guide with illustrations and comphrehensive 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, Reflect)]
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#[reflect(Component, Default, PartialEq)]
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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 it's 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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/// <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 size of the node
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///
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/// `size.width` is used when it is within the bounds defined by `min_size.width` and `max_size.width`.
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/// `size.height` is used when it is within the bounds defined by `min_size.height` and `max_size.height`.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/width> <br />
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/height>
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pub size: Size,
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/// The minimum size of the node
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///
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/// `min_size.width` is used if it is greater than either `size.width` or `max_size.width`, or both.
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/// `min_size.height` is used if it is greater than either `size.height` or `max_size.height`, or both.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/min-width> <br />
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/min-height>
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pub min_size: Size,
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/// The maximum size of the node
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///
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/// `max_size.width` is used if it is within the bounds defined by `min_size.width` and `size.width`.
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/// `max_size.height` is used if it is within the bounds defined by `min_size.height` and `size.height.
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///
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/max-width> <br />
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/// <https://developer.mozilla.org/en-US/docs/Web/CSS/max-height>
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pub max_size: Size,
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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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/// For Flexbox containers:
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/// - Sets default cross-axis alignment of the child items.
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/// For CSS Grid containers:
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/// - 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 overriden [`JustifySelf`] 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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/// For Flexbox containers:
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/// - This property has no effect. See `justify_content` for main-axis alignment of flex items.
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/// For CSS Grid containers:
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/// - Sets default inline (horizontal) axis alignment of child items within their grid areas
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///
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/// This value is overriden [`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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/// For Flexbox items:
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/// - Controls cross-axis alignment of the item.
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/// For CSS Grid items:
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/// - Controls block (vertical) axis alignment of a grid item within it's 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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/// For Flexbox items:
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/// - This property has no effect. See `justify_content` for main-axis alignment of flex items.
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/// For CSS Grid items:
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/// - Controls inline (horizontal) axis alignment of a grid item within it's 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-items>
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pub justify_self: JustifySelf,
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/// For Flexbox containers:
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/// - 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 container:
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/// - 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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/// For Flexbox containers:
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/// - Controls alignment of items in the main axis
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/// For CSS Grid containers:
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/// - 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.),
|
|
/// right: Val::Percent(10.),
|
|
/// top: Val::Percent(15.),
|
|
/// bottom: Val::Percent(15.)
|
|
/// },
|
|
/// ..Default::default()
|
|
/// };
|
|
/// ```
|
|
/// 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.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/margin>
|
|
pub margin: UiRect,
|
|
|
|
/// The amount of space between the edges of a node and its contents.
|
|
///
|
|
/// If a percentage value is used, the percentage is calculated based on the width of the parent node.
|
|
///
|
|
/// # Example
|
|
/// ```
|
|
/// # use bevy_ui::{Style, UiRect, Val};
|
|
/// let style = Style {
|
|
/// padding: UiRect {
|
|
/// left: Val::Percent(1.),
|
|
/// right: Val::Percent(2.),
|
|
/// top: Val::Percent(3.),
|
|
/// bottom: Val::Percent(4.)
|
|
/// },
|
|
/// ..Default::default()
|
|
/// };
|
|
/// ```
|
|
/// 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.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/padding>
|
|
pub padding: UiRect,
|
|
|
|
/// The amount of space between the margins of a node and its padding.
|
|
///
|
|
/// If a percentage value is used, the percentage is calculated based on the width of the parent node.
|
|
///
|
|
/// 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.
|
|
///
|
|
/// Rendering for borders is not yet implemented.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/border-width>
|
|
pub border: UiRect,
|
|
|
|
/// Whether a Flexbox container should be a row or a column. This property has no effect of Grid nodes.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-direction>
|
|
pub flex_direction: FlexDirection,
|
|
|
|
/// Whether a Flexbox container should wrap it's contents onto multiple line wrap if they overflow. This property has no effect of Grid nodes.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-wrap>
|
|
pub flex_wrap: FlexWrap,
|
|
|
|
/// Defines how much a flexbox item should grow if there's space available. Defaults to 0 (don't grow at all).
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-grow>
|
|
pub flex_grow: f32,
|
|
|
|
/// Defines how much a flexbox item should shrink if there's not enough space available. Defaults to 1.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-shrink>
|
|
pub flex_shrink: f32,
|
|
|
|
/// The initial length of a flexbox in the main axis, before flex growing/shrinking properties are applied.
|
|
///
|
|
/// `flex_basis` overrides `size` on the main axis if both are set, but it obeys the bounds defined by `min_size` and `max_size`.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/flex-basis>
|
|
pub flex_basis: Val,
|
|
|
|
/// The size of the gutters between items in flexbox layout or rows/columns in a grid layout
|
|
///
|
|
/// Note: Values of `Val::Auto` are not valid and are treated as zero.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/gap>
|
|
pub gap: Size,
|
|
|
|
/// Controls whether automatically placed grid items are placed row-wise or column-wise. And whether the sparse or dense packing algorithm is used.
|
|
/// Only affect Grid layouts
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-flow>
|
|
pub grid_auto_flow: GridAutoFlow,
|
|
|
|
/// 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
|
|
/// be implicitly generated by items that are placed out of bounds. The sizes of those rows are controlled by `grid_auto_rows` property.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-rows>
|
|
pub grid_template_rows: Vec<RepeatedGridTrack>,
|
|
|
|
/// 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
|
|
/// be implicitly generated by items that are placed out of bounds. The sizes of those columns are controlled by `grid_auto_columns` property.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-columns>
|
|
pub grid_template_columns: Vec<RepeatedGridTrack>,
|
|
|
|
/// Defines the size of implicitly created rows. Rows are created implicitly when grid items are given explicit placements that are out of bounds
|
|
/// of the rows explicitly created using `grid_template_rows`.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-auto-rows>
|
|
pub grid_auto_rows: Vec<GridTrack>,
|
|
/// Defines the size of implicitly created columns. Columns are created implicitly when grid items are given explicit placements that are out of bounds
|
|
/// of the columns explicitly created using `grid_template_columms`.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-columns>
|
|
pub grid_auto_columns: Vec<GridTrack>,
|
|
|
|
/// The row in which a grid item starts and how many rows it spans.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-row>
|
|
pub grid_row: GridPlacement,
|
|
|
|
/// The column in which a grid item starts and how many columns it spans.
|
|
///
|
|
/// <https://developer.mozilla.org/en-US/docs/Web/CSS/grid-column>
|
|
pub grid_column: GridPlacement,
|
|
}
|
|
|
|
impl Style {
|
|
pub const DEFAULT: Self = Self {
|
|
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,
|
|
size: Size::AUTO,
|
|
min_size: Size::AUTO,
|
|
max_size: Size::AUTO,
|
|
aspect_ratio: None,
|
|
overflow: Overflow::DEFAULT,
|
|
gap: Size::all(Val::Px(0.0)),
|
|
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
|
|
}
|
|
}
|
|
|
|
/// How items are aligned according to the cross axis
|
|
#[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,
|
|
/// Items are packed towards the start of the axis.
|
|
Start,
|
|
/// Items are packed towards the end of the axis.
|
|
End,
|
|
/// 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,
|
|
/// 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,
|
|
/// Items are aligned at the center.
|
|
Center,
|
|
/// Items are aligned at the baseline.
|
|
Baseline,
|
|
/// Items are stretched across the whole cross axis.
|
|
Stretch,
|
|
}
|
|
|
|
impl AlignItems {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for AlignItems {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// How items are aligned according to the cross axis
|
|
#[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,
|
|
/// Items are packed towards the start of the axis.
|
|
Start,
|
|
/// Items are packed towards the end of the axis.
|
|
End,
|
|
/// Items are aligned at the center.
|
|
Center,
|
|
/// Items are aligned at the baseline.
|
|
Baseline,
|
|
/// Items are stretched across the whole cross axis.
|
|
Stretch,
|
|
}
|
|
|
|
impl JustifyItems {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for JustifyItems {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// How this item is aligned according to the cross axis.
|
|
/// Overrides [`AlignItems`].
|
|
#[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 at the center.
|
|
Center,
|
|
/// This item will be aligned at the baseline.
|
|
Baseline,
|
|
/// This item will be stretched across the whole cross axis.
|
|
Stretch,
|
|
}
|
|
|
|
impl AlignSelf {
|
|
pub const DEFAULT: Self = Self::Auto;
|
|
}
|
|
|
|
impl Default for AlignSelf {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// How this item is aligned according to the cross axis.
|
|
/// Overrides [`AlignItems`].
|
|
#[derive(Copy, Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Reflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub enum JustifySelf {
|
|
/// 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 at the center.
|
|
Center,
|
|
/// This item will be aligned at the baseline.
|
|
Baseline,
|
|
/// This item will be stretched across the whole cross axis.
|
|
Stretch,
|
|
}
|
|
|
|
impl JustifySelf {
|
|
pub const DEFAULT: Self = Self::Auto;
|
|
}
|
|
|
|
impl Default for JustifySelf {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines how each line is aligned within the flexbox.
|
|
///
|
|
/// It only applies if [`FlexWrap::Wrap`] is present and if there are multiple lines of items.
|
|
#[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,
|
|
/// Each line moves towards the start of the cross axis.
|
|
Start,
|
|
/// Each line moves towards the end of the cross axis.
|
|
End,
|
|
/// Each line moves towards the start of the cross axis, unless the flex direction is reversed; then the line moves towards the end of the cross axis.
|
|
FlexStart,
|
|
/// Each line moves towards the end of the cross axis, unless the flex direction is reversed; then the line moves towards the start of the cross axis.
|
|
FlexEnd,
|
|
/// Each line moves towards the center of the cross axis.
|
|
Center,
|
|
/// Each line will stretch to fill the remaining space.
|
|
Stretch,
|
|
/// Each line fills the space it needs, putting the remaining space, if any
|
|
/// inbetween the lines.
|
|
SpaceBetween,
|
|
/// The gap between the first and last items is exactly THE SAME as the gap between items.
|
|
/// The gaps are distributed evenly.
|
|
SpaceEvenly,
|
|
/// Each line fills the space it needs, putting the remaining space, if any
|
|
/// around the lines.
|
|
SpaceAround,
|
|
}
|
|
|
|
impl AlignContent {
|
|
pub const DEFAULT: Self = Self::Default;
|
|
}
|
|
|
|
impl Default for AlignContent {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// Defines how items are aligned according to the main axis
|
|
#[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,
|
|
/// Items are packed toward the start of the axis.
|
|
Start,
|
|
/// Items are packed toward the end of the axis.
|
|
End,
|
|
/// Pushed towards the start, unless the flex direction is reversed; then pushed towards the end.
|
|
FlexStart,
|
|
/// Pushed towards the end, unless the flex direction is reversed; then pushed towards the start.
|
|
FlexEnd,
|
|
/// Centered along the main axis.
|
|
Center,
|
|
/// Remaining space is distributed between the items.
|
|
SpaceBetween,
|
|
/// Remaining space is distributed around the items.
|
|
SpaceAround,
|
|
/// Like [`JustifyContent::SpaceAround`] but with even spacing between items.
|
|
SpaceEvenly,
|
|
}
|
|
|
|
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
|
|
}
|
|
}
|
|
|
|
/// Whether to use a Flexbox layout model.
|
|
///
|
|
/// 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 enum Overflow {
|
|
/// Show overflowing items.
|
|
Visible,
|
|
/// Hide overflowing items.
|
|
Hidden,
|
|
}
|
|
|
|
impl Overflow {
|
|
pub const DEFAULT: Self = Self::Visible;
|
|
}
|
|
|
|
impl Default for Overflow {
|
|
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.
|
|
///
|
|
/// As usual, the `Style.position` field of this node is specified relative to its parent node.
|
|
Absolute,
|
|
}
|
|
|
|
impl PositionType {
|
|
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 {
|
|
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. And 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 {
|
|
const DEFAULT: Self = Self::Row;
|
|
}
|
|
|
|
impl Default for GridAutoFlow {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq, Debug, Serialize, Deserialize, Reflect, FromReflect)]
|
|
#[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, FromReflect)]
|
|
#[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, FromReflect)]
|
|
#[reflect(PartialEq, Serialize, Deserialize)]
|
|
pub struct GridTrack {
|
|
pub(crate) min_sizing_function: MinTrackSizingFunction,
|
|
pub(crate) max_sizing_function: MaxTrackSizingFunction,
|
|
}
|
|
|
|
impl GridTrack {
|
|
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 an `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 it's contents, and then
|
|
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 it's 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 it's 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, FromReflect)]
|
|
#[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 track (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, FromReflect)]
|
|
#[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 an `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 specifed 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<i16>,
|
|
/// How many grid tracks the item should span. Defaults to 1.
|
|
pub(crate) span: Option<u16>,
|
|
/// The grid line at which the node 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<i16>,
|
|
}
|
|
|
|
impl GridPlacement {
|
|
const DEFAULT: Self = Self {
|
|
start: None,
|
|
span: Some(1),
|
|
end: None,
|
|
};
|
|
|
|
/// Place the grid item automatically (letting the `span` default to `1`).
|
|
pub fn auto() -> Self {
|
|
Self {
|
|
start: None,
|
|
end: None,
|
|
span: Some(1),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item automatically, specifying how many tracks it should `span`.
|
|
pub fn span(span: u16) -> Self {
|
|
Self {
|
|
start: None,
|
|
end: None,
|
|
span: Some(span),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `start` grid line (letting the `span` default to `1`).
|
|
pub fn start(start: i16) -> Self {
|
|
Self {
|
|
start: Some(start),
|
|
end: None,
|
|
span: Some(1),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `end` grid line (letting the `span` default to `1`).
|
|
pub fn end(end: i16) -> Self {
|
|
Self {
|
|
start: None,
|
|
end: Some(end),
|
|
span: Some(1),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `start` grid line and how many tracks it should `span`.
|
|
pub fn start_span(start: i16, span: u16) -> Self {
|
|
Self {
|
|
start: Some(start),
|
|
end: None,
|
|
span: Some(span),
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying `start` and `end` grid lines (`span` will be inferred)
|
|
pub fn start_end(start: i16, end: i16) -> Self {
|
|
Self {
|
|
start: Some(start),
|
|
end: Some(end),
|
|
span: None,
|
|
}
|
|
}
|
|
|
|
/// Place the grid item specifying the `end` grid line and how many tracks it should `span`.
|
|
pub fn end_span(end: i16, span: u16) -> Self {
|
|
Self {
|
|
start: None,
|
|
end: Some(end),
|
|
span: Some(span),
|
|
}
|
|
}
|
|
|
|
/// Mutate the item, setting the `start` grid line
|
|
pub fn set_start(mut self, start: i16) -> Self {
|
|
self.start = Some(start);
|
|
self
|
|
}
|
|
|
|
/// Mutate the item, setting the `end` grid line
|
|
pub fn set_end(mut self, end: i16) -> Self {
|
|
self.end = Some(end);
|
|
self
|
|
}
|
|
|
|
/// Mutate the item, setting the number of tracks the item should `span`
|
|
pub fn set_span(mut self, span: u16) -> Self {
|
|
self.span = Some(span);
|
|
self
|
|
}
|
|
}
|
|
|
|
impl Default for GridPlacement {
|
|
fn default() -> Self {
|
|
Self::DEFAULT
|
|
}
|
|
}
|
|
|
|
/// 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, Reflect)]
|
|
#[reflect(Component, Default)]
|
|
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 2D texture displayed for this UI node
|
|
#[derive(Component, Clone, Debug, Reflect)]
|
|
#[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 Default for UiImage {
|
|
fn default() -> UiImage {
|
|
UiImage {
|
|
texture: DEFAULT_IMAGE_HANDLE.typed(),
|
|
flip_x: false,
|
|
flip_y: false,
|
|
}
|
|
}
|
|
}
|
|
|
|
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 this parent's other children.
|
|
///
|
|
/// 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::ValArithmeticError;
|
|
|
|
use super::Val;
|
|
|
|
#[test]
|
|
fn val_try_add() {
|
|
let auto_sum = Val::Auto.try_add(Val::Auto).unwrap();
|
|
let px_sum = Val::Px(20.).try_add(Val::Px(22.)).unwrap();
|
|
let percent_sum = Val::Percent(50.).try_add(Val::Percent(50.)).unwrap();
|
|
|
|
assert_eq!(auto_sum, Val::Auto);
|
|
assert_eq!(px_sum, Val::Px(42.));
|
|
assert_eq!(percent_sum, Val::Percent(100.));
|
|
}
|
|
|
|
#[test]
|
|
fn val_try_add_to_self() {
|
|
let mut val = Val::Px(5.);
|
|
|
|
val.try_add_assign(Val::Px(3.)).unwrap();
|
|
|
|
assert_eq!(val, Val::Px(8.));
|
|
}
|
|
|
|
#[test]
|
|
fn val_try_sub() {
|
|
let auto_sum = Val::Auto.try_sub(Val::Auto).unwrap();
|
|
let px_sum = Val::Px(72.).try_sub(Val::Px(30.)).unwrap();
|
|
let percent_sum = Val::Percent(100.).try_sub(Val::Percent(50.)).unwrap();
|
|
|
|
assert_eq!(auto_sum, Val::Auto);
|
|
assert_eq!(px_sum, Val::Px(42.));
|
|
assert_eq!(percent_sum, Val::Percent(50.));
|
|
}
|
|
|
|
#[test]
|
|
fn different_variant_val_try_add() {
|
|
let different_variant_sum_1 = Val::Px(50.).try_add(Val::Percent(50.));
|
|
let different_variant_sum_2 = Val::Percent(50.).try_add(Val::Auto);
|
|
|
|
assert_eq!(
|
|
different_variant_sum_1,
|
|
Err(ValArithmeticError::NonIdenticalVariants)
|
|
);
|
|
assert_eq!(
|
|
different_variant_sum_2,
|
|
Err(ValArithmeticError::NonIdenticalVariants)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn different_variant_val_try_sub() {
|
|
let different_variant_diff_1 = Val::Px(50.).try_sub(Val::Percent(50.));
|
|
let different_variant_diff_2 = Val::Percent(50.).try_sub(Val::Auto);
|
|
|
|
assert_eq!(
|
|
different_variant_diff_1,
|
|
Err(ValArithmeticError::NonIdenticalVariants)
|
|
);
|
|
assert_eq!(
|
|
different_variant_diff_2,
|
|
Err(ValArithmeticError::NonIdenticalVariants)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn val_evaluate() {
|
|
let size = 250.;
|
|
let result = Val::Percent(80.).evaluate(size).unwrap();
|
|
|
|
assert_eq!(result, size * 0.8);
|
|
}
|
|
|
|
#[test]
|
|
fn val_evaluate_px() {
|
|
let size = 250.;
|
|
let result = Val::Px(10.).evaluate(size).unwrap();
|
|
|
|
assert_eq!(result, 10.);
|
|
}
|
|
|
|
#[test]
|
|
fn val_invalid_evaluation() {
|
|
let size = 250.;
|
|
let evaluate_auto = Val::Auto.evaluate(size);
|
|
|
|
assert_eq!(evaluate_auto, Err(ValArithmeticError::NonEvaluateable));
|
|
}
|
|
|
|
#[test]
|
|
fn val_try_add_with_size() {
|
|
let size = 250.;
|
|
|
|
let px_sum = Val::Px(21.).try_add_with_size(Val::Px(21.), size).unwrap();
|
|
let percent_sum = Val::Percent(20.)
|
|
.try_add_with_size(Val::Percent(30.), size)
|
|
.unwrap();
|
|
let mixed_sum = Val::Px(20.)
|
|
.try_add_with_size(Val::Percent(30.), size)
|
|
.unwrap();
|
|
|
|
assert_eq!(px_sum, 42.);
|
|
assert_eq!(percent_sum, 0.5 * size);
|
|
assert_eq!(mixed_sum, 20. + 0.3 * size);
|
|
}
|
|
|
|
#[test]
|
|
fn val_try_sub_with_size() {
|
|
let size = 250.;
|
|
|
|
let px_sum = Val::Px(60.).try_sub_with_size(Val::Px(18.), size).unwrap();
|
|
let percent_sum = Val::Percent(80.)
|
|
.try_sub_with_size(Val::Percent(30.), size)
|
|
.unwrap();
|
|
let mixed_sum = Val::Percent(50.)
|
|
.try_sub_with_size(Val::Px(30.), size)
|
|
.unwrap();
|
|
|
|
assert_eq!(px_sum, 42.);
|
|
assert_eq!(percent_sum, 0.5 * size);
|
|
assert_eq!(mixed_sum, 0.5 * size - 30.);
|
|
}
|
|
|
|
#[test]
|
|
fn val_try_add_non_numeric_with_size() {
|
|
let size = 250.;
|
|
|
|
let percent_sum = Val::Auto.try_add_with_size(Val::Auto, size);
|
|
|
|
assert_eq!(percent_sum, Err(ValArithmeticError::NonEvaluateable));
|
|
}
|
|
|
|
#[test]
|
|
fn val_arithmetic_error_messages() {
|
|
assert_eq!(
|
|
format!("{}", ValArithmeticError::NonIdenticalVariants),
|
|
"the variants of the Vals don't match"
|
|
);
|
|
assert_eq!(
|
|
format!("{}", ValArithmeticError::NonEvaluateable),
|
|
"the given variant of Val is not evaluateable (non-numeric)"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn default_val_equals_const_default_val() {
|
|
assert_eq!(Val::default(), Val::DEFAULT);
|
|
}
|
|
}
|