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|
use crate::{Align, Justify, Length};
use stretch::style;
/// The appearance of a [`Node`].
///
/// [`Node`]: struct.Node.html
#[derive(Debug, Clone, Copy)]
pub struct Style(pub(crate) style::Style);
impl Default for Style {
fn default() -> Style {
Style::new()
}
}
impl Style {
/// Creates a new [`Style`].
///
/// [`Style`]: struct.Style.html
pub fn new() -> Self {
Style(style::Style {
align_items: style::AlignItems::FlexStart,
justify_content: style::JustifyContent::FlexStart,
..style::Style::default()
})
}
/// Defines the width of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn width(mut self, width: Length) -> Self {
self.0.size.width = into_dimension(width);
self
}
/// Defines the height of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn height(mut self, height: Length) -> Self {
self.0.size.height = into_dimension(height);
self
}
/// Defines the minimum width of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn min_width(mut self, min_width: Length) -> Self {
self.0.min_size.width = into_dimension(min_width);
self
}
/// Defines the maximum width of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn max_width(mut self, max_width: Length) -> Self {
self.0.max_size.width = into_dimension(max_width);
self
}
/// Defines the minimum height of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn min_height(mut self, min_height: Length) -> Self {
self.0.min_size.height = into_dimension(min_height);
self
}
/// Defines the maximum height of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn max_height(mut self, max_height: Length) -> Self {
self.0.max_size.height = into_dimension(max_height);
self
}
pub(crate) fn align_items(mut self, align: Align) -> Self {
self.0.align_items = into_align_items(align);
self
}
pub(crate) fn justify_content(mut self, justify: Justify) -> Self {
self.0.justify_content = into_justify_content(justify);
self
}
/// Sets the alignment of a [`Node`].
///
/// If the [`Node`] is inside a...
///
/// * [`Column`], this setting will affect its __horizontal__ alignment.
/// * [`Row`], this setting will affect its __vertical__ alignment.
///
/// [`Node`]: struct.Node.html
/// [`Column`]: widget/struct.Column.html
/// [`Row`]: widget/struct.Row.html
pub fn align_self(mut self, align: Option<Align>) -> Self {
self.0.align_self = match align {
Some(align) => into_align_self(align),
None => stretch::style::AlignSelf::Auto,
};
self
}
/// Sets the padding of a [`Node`].
///
/// [`Node`]: struct.Node.html
pub fn padding(mut self, units: u16) -> Self {
self.0.padding = stretch::geometry::Rect {
start: style::Dimension::Points(units as f32),
end: style::Dimension::Points(units as f32),
top: style::Dimension::Points(units as f32),
bottom: style::Dimension::Points(units as f32),
};
self
}
}
fn into_dimension(length: Length) -> style::Dimension {
match length {
Length::Shrink => style::Dimension::Undefined,
Length::Fill => style::Dimension::Percent(1.0),
Length::Units(units) => style::Dimension::Points(units as f32),
}
}
fn into_align_items(align: Align) -> style::AlignItems {
match align {
Align::Start => style::AlignItems::FlexStart,
Align::Center => style::AlignItems::Center,
Align::End => style::AlignItems::FlexEnd,
Align::Stretch => style::AlignItems::Stretch,
}
}
fn into_align_self(align: Align) -> style::AlignSelf {
match align {
Align::Start => style::AlignSelf::FlexStart,
Align::Center => style::AlignSelf::Center,
Align::End => style::AlignSelf::FlexEnd,
Align::Stretch => style::AlignSelf::Stretch,
}
}
fn into_justify_content(justify: Justify) -> style::JustifyContent {
match justify {
Justify::Start => style::JustifyContent::FlexStart,
Justify::Center => style::JustifyContent::Center,
Justify::End => style::JustifyContent::FlexEnd,
Justify::SpaceBetween => style::JustifyContent::SpaceBetween,
Justify::SpaceAround => style::JustifyContent::SpaceAround,
Justify::SpaceEvenly => style::JustifyContent::SpaceEvenly,
}
}
|
