6bbe189809
* fix inconsistent naming of tree parameter in widget trait * rename `Tree` parameter in various usages across iced
104 lines
2.4 KiB
Rust
104 lines
2.4 KiB
Rust
//! Add some explicit spacing between elements.
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use crate::core;
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use crate::core::layout;
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use crate::core::mouse;
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use crate::core::renderer;
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use crate::core::widget::Tree;
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use crate::core::{Element, Layout, Length, Rectangle, Size, Widget};
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/// Creates a new [`Space`] widget that fills the available
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/// horizontal space.
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///
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/// This can be useful to separate widgets in a [`Row`](crate::Row).
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pub fn horizontal() -> Space {
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Space::new().width(Length::Fill)
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}
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/// Creates a new [`Space`] widget that fills the available
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/// vertical space.
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///
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/// This can be useful to separate widgets in a [`Column`](crate::Column).
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pub fn vertical() -> Space {
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Space::new().height(Length::Fill)
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}
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/// An amount of empty space.
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///
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/// It can be useful if you want to fill some space with nothing.
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#[derive(Debug)]
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pub struct Space {
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width: Length,
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height: Length,
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}
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impl Space {
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/// Creates some empty [`Space`] with no size.
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pub fn new() -> Self {
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Space {
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width: Length::Shrink,
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height: Length::Shrink,
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}
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}
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/// Sets the width of the [`Space`].
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pub fn width(mut self, width: impl Into<Length>) -> Self {
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self.width = width.into();
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self
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}
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/// Sets the height of the [`Space`].
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pub fn height(mut self, height: impl Into<Length>) -> Self {
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self.height = height.into();
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self
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}
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}
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impl Default for Space {
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fn default() -> Self {
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Space::new()
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}
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}
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impl<Message, Theme, Renderer> Widget<Message, Theme, Renderer> for Space
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where
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Renderer: core::Renderer,
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{
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fn size(&self) -> Size<Length> {
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Size {
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width: self.width,
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height: self.height,
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}
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}
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fn layout(
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&mut self,
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_tree: &mut Tree,
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_renderer: &Renderer,
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limits: &layout::Limits,
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) -> layout::Node {
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layout::atomic(limits, self.width, self.height)
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}
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fn draw(
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&self,
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_tree: &Tree,
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_renderer: &mut Renderer,
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_theme: &Theme,
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_style: &renderer::Style,
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_layout: Layout<'_>,
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_cursor: mouse::Cursor,
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_viewport: &Rectangle,
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) {
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}
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}
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impl<'a, Message, Theme, Renderer> From<Space>
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for Element<'a, Message, Theme, Renderer>
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where
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Renderer: core::Renderer,
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Message: 'a,
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{
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fn from(space: Space) -> Element<'a, Message, Theme, Renderer> {
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Element::new(space)
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}
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}
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