Reuse Text widget from iced_native in iced_pure

This commit is contained in:
Héctor Ramón Jiménez 2022-02-12 14:22:17 +07:00
parent 182fb9446c
commit dee3dba632
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GPG key ID: 140CC052C94F138E
3 changed files with 19 additions and 116 deletions

View file

@ -43,7 +43,7 @@ impl Sandbox for Counter {
.padding(20) .padding(20)
.align_items(Alignment::Center) .align_items(Alignment::Center)
.push(button("Increment").on_press(Message::IncrementPressed)) .push(button("Increment").on_press(Message::IncrementPressed))
.push(text(self.value).size(50)) .push(text(self.value.to_string()).size(50))
.push(button("Decrement").on_press(Message::DecrementPressed)) .push(button("Decrement").on_press(Message::DecrementPressed))
.into() .into()
} }

View file

@ -99,7 +99,7 @@ pub fn button<'a, Message, Renderer>(
Button::new(content) Button::new(content)
} }
pub fn text<Renderer>(text: impl ToString) -> Text<Renderer> pub fn text<Renderer>(text: impl Into<String>) -> Text<Renderer>
where where
Renderer: iced_native::text::Renderer, Renderer: iced_native::text::Renderer,
{ {

View file

@ -1,92 +1,13 @@
use crate::{Element, Tree, Widget}; use crate::{Element, Tree, Widget};
use iced_native::alignment;
use iced_native::layout::{self, Layout}; use iced_native::layout::{self, Layout};
use iced_native::renderer; use iced_native::renderer;
use iced_native::text; use iced_native::text;
use iced_native::{Color, Hasher, Length, Point, Rectangle, Size}; use iced_native::{Hasher, Length, Point, Rectangle};
use std::any::{self, Any}; use std::any::{self, Any};
pub struct Text<Renderer> pub use iced_native::widget::Text;
where
Renderer: text::Renderer,
{
content: String,
size: Option<u16>,
color: Option<Color>,
font: Renderer::Font,
width: Length,
height: Length,
horizontal_alignment: alignment::Horizontal,
vertical_alignment: alignment::Vertical,
}
impl<Renderer: text::Renderer> Text<Renderer> {
/// Create a new fragment of [`Text`] with the given contents.
pub fn new<T: ToString>(label: T) -> Self {
Text {
content: label.to_string(),
size: None,
color: None,
font: Default::default(),
width: Length::Shrink,
height: Length::Shrink,
horizontal_alignment: alignment::Horizontal::Left,
vertical_alignment: alignment::Vertical::Top,
}
}
/// Sets the size of the [`Text`].
pub fn size(mut self, size: u16) -> Self {
self.size = Some(size);
self
}
/// Sets the [`Color`] of the [`Text`].
pub fn color<C: Into<Color>>(mut self, color: C) -> Self {
self.color = Some(color.into());
self
}
/// Sets the [`Font`] of the [`Text`].
///
/// [`Font`]: Renderer::Font
pub fn font(mut self, font: impl Into<Renderer::Font>) -> Self {
self.font = font.into();
self
}
/// Sets the width of the [`Text`] boundaries.
pub fn width(mut self, width: Length) -> Self {
self.width = width;
self
}
/// Sets the height of the [`Text`] boundaries.
pub fn height(mut self, height: Length) -> Self {
self.height = height;
self
}
/// Sets the [`HorizontalAlignment`] of the [`Text`].
pub fn horizontal_alignment(
mut self,
alignment: alignment::Horizontal,
) -> Self {
self.horizontal_alignment = alignment;
self
}
/// Sets the [`VerticalAlignment`] of the [`Text`].
pub fn vertical_alignment(
mut self,
alignment: alignment::Vertical,
) -> Self {
self.vertical_alignment = alignment;
self
}
}
impl<Message, Renderer> Widget<Message, Renderer> for Text<Renderer> impl<Message, Renderer> Widget<Message, Renderer> for Text<Renderer>
where where
@ -105,11 +26,11 @@ where
} }
fn width(&self) -> Length { fn width(&self) -> Length {
self.width <Self as iced_native::Widget<Message, Renderer>>::width(self)
} }
fn height(&self) -> Length { fn height(&self) -> Length {
self.height <Self as iced_native::Widget<Message, Renderer>>::height(self)
} }
fn layout( fn layout(
@ -117,18 +38,9 @@ where
renderer: &Renderer, renderer: &Renderer,
limits: &layout::Limits, limits: &layout::Limits,
) -> layout::Node { ) -> layout::Node {
let limits = limits.width(self.width).height(self.height); <Self as iced_native::Widget<Message, Renderer>>::layout(
self, renderer, limits,
let size = self.size.unwrap_or(renderer.default_size()); )
let bounds = limits.max();
let (width, height) =
renderer.measure(&self.content, size, self.font.clone(), bounds);
let size = limits.resolve(Size::new(width, height));
layout::Node::new(size)
} }
fn draw( fn draw(
@ -137,32 +49,23 @@ where
renderer: &mut Renderer, renderer: &mut Renderer,
style: &renderer::Style, style: &renderer::Style,
layout: Layout<'_>, layout: Layout<'_>,
_cursor_position: Point, cursor_position: Point,
_viewport: &Rectangle, viewport: &Rectangle,
) { ) {
iced_native::widget::text::draw( <Self as iced_native::Widget<Message, Renderer>>::draw(
self,
renderer, renderer,
style, style,
layout, layout,
&self.content, cursor_position,
self.font.clone(), viewport,
self.size, )
self.color,
self.horizontal_alignment,
self.vertical_alignment,
);
} }
fn hash_layout(&self, state: &mut Hasher) { fn hash_layout(&self, state: &mut Hasher) {
use std::hash::Hash; <Self as iced_native::Widget<Message, Renderer>>::hash_layout(
self, state,
struct Marker; )
std::any::TypeId::of::<Marker>().hash(state);
self.content.hash(state);
self.size.hash(state);
self.width.hash(state);
self.height.hash(state);
} }
} }