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Make widget::Tree mutable in Widget::layout

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This commit is contained in:
Héctor Ramón Jiménez 2023-08-30 06:36:24 +02:00
parent 301e6e5fdc
commit a026e917d3
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GPG key ID: 140CC052C94F138E
45 changed files with 135 additions and 135 deletions
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4
core/src/element.rs
View file

@ -306,7 +306,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -492,7 +492,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

4
core/src/layout/flex.rs
View file

@ -67,7 +67,7 @@ pub fn resolve<Message, Renderer>(
spacing: f32,
align_items: Alignment,
items: &[Element<'_, Message, Renderer>],
trees: &[widget::Tree],
trees: &mut [widget::Tree],
) -> Node
where
Renderer: crate::Renderer,
@ -83,7 +83,7 @@ where
let mut nodes: Vec<Node> = Vec::with_capacity(items.len());
nodes.resize(items.len(), Node::default());
for (i, (child, tree)) in items.iter().zip(trees).enumerate() {
for (i, (child, tree)) in items.iter().zip(trees.iter_mut()).enumerate() {
let fill_factor = match axis {
Axis::Horizontal => child.as_widget().width(),
Axis::Vertical => child.as_widget().height(),

2
core/src/overlay.rs
View file

@ -25,7 +25,7 @@ where
///
/// [`Node`]: layout::Node
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

4
core/src/overlay/element.rs
View file

@ -54,7 +54,7 @@ where
/// Computes the layout of the [`Element`] in the given bounds.
pub fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
translation: Vector,
@ -150,7 +150,7 @@ where
Renderer: crate::Renderer,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

4
core/src/overlay/group.rs
View file

@ -61,7 +61,7 @@ where
Renderer: crate::Renderer,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,
@ -71,7 +71,7 @@ where
layout::Node::with_children(
bounds,
self.children
.iter()
.iter_mut()
.map(|child| child.layout(renderer, bounds, translation))
.collect(),
)

2
core/src/widget.rs
View file

@ -55,7 +55,7 @@ where
/// user interface.
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node;

19
core/src/widget/text.rs
View file

@ -3,12 +3,11 @@ use crate::alignment;
use crate::layout;
use crate::mouse;
use crate::renderer;
use crate::text::{self, Paragraph as _};
use crate::text::{self, Paragraph};
use crate::widget::tree::{self, Tree};
use crate::{Color, Element, Layout, Length, Pixels, Point, Rectangle, Widget};
use std::borrow::Cow;
use std::cell::RefCell;
pub use text::{LineHeight, Shaping};
@ -120,7 +119,7 @@ where
/// The internal state of a [`Text`] widget.
#[derive(Debug, Default)]
pub struct State<T>(RefCell<T>);
pub struct State<P: Paragraph>(P);
impl<'a, Message, Renderer> Widget<Message, Renderer> for Text<'a, Renderer>
where
@ -132,7 +131,7 @@ where
}
fn state(&self) -> tree::State {
tree::State::new(State(RefCell::new(Renderer::Paragraph::default())))
tree::State::new(State(Renderer::Paragraph::default()))
}
fn width(&self) -> Length {
@ -145,12 +144,12 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
layout(
tree.state.downcast_ref::<State<Renderer::Paragraph>>(),
tree.state.downcast_mut::<State<Renderer::Paragraph>>(),
renderer,
limits,
self.width,
@ -189,7 +188,7 @@ where
/// Produces the [`layout::Node`] of a [`Text`] widget.
pub fn layout<Renderer>(
state: &State<Renderer::Paragraph>,
state: &mut State<Renderer::Paragraph>,
renderer: &Renderer,
limits: &layout::Limits,
width: Length,
@ -211,10 +210,10 @@ where
let size = size.unwrap_or_else(|| renderer.default_size());
let font = font.unwrap_or_else(|| renderer.default_font());
let mut paragraph = state.0.borrow_mut();
let State(ref mut paragraph) = state;
renderer.update_paragraph(
&mut paragraph,
paragraph,
text::Text {
content,
bounds,
@ -251,7 +250,7 @@ pub fn draw<Renderer>(
) where
Renderer: text::Renderer,
{
let paragraph = state.0.borrow();
let State(ref paragraph) = state;
let bounds = layout.bounds();
let x = match paragraph.horizontal_alignment() {

2
examples/custom_quad/src/main.rs
View file

@ -36,7 +36,7 @@ mod quad {
fn layout(
&self,
_tree: &widget::Tree,
_tree: &mut widget::Tree,
_renderer: &Renderer,
_limits: &layout::Limits,
) -> layout::Node {

2
examples/custom_widget/src/main.rs
View file

@ -43,7 +43,7 @@ mod circle {
fn layout(
&self,
_tree: &widget::Tree,
_tree: &mut widget::Tree,
_renderer: &Renderer,
_limits: &layout::Limits,
) -> layout::Node {

2
examples/geometry/src/main.rs
View file

@ -26,7 +26,7 @@ mod rainbow {
fn layout(
&self,
_tree: &widget::Tree,
_tree: &mut widget::Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
examples/loading_spinners/src/circular.rs
View file

@ -254,7 +254,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &iced::Renderer<Theme>,
limits: &layout::Limits,
) -> layout::Node {

2
examples/loading_spinners/src/linear.rs
View file

@ -175,7 +175,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

12
examples/modal/src/main.rs
View file

@ -285,13 +285,15 @@ mod modal {
fn layout(
&self,
tree: &widget::Tree,
tree: &mut widget::Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.base
.as_widget()
.layout(&tree.children[0], renderer, limits)
self.base.as_widget().layout(
&mut tree.children[0],
renderer,
limits,
)
}
fn on_event(
@ -402,7 +404,7 @@ mod modal {
Message: Clone,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
_bounds: Size,
position: Point,

12
examples/toast/src/main.rs
View file

@ -326,13 +326,15 @@ mod toast {
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.content
.as_widget()
.layout(&tree.children[0], renderer, limits)
self.content.as_widget().layout(
&mut tree.children[0],
renderer,
limits,
)
}
fn tag(&self) -> widget::tree::Tag {
@ -503,7 +505,7 @@ mod toast {
for Overlay<'a, 'b, Message>
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

6
runtime/src/user_interface.rs
View file

@ -96,7 +96,7 @@ where
state.diff(root.as_widget());
let base = root.as_widget().layout(
&state,
&mut state,
renderer,
&layout::Limits::new(Size::ZERO, bounds),
);
@ -230,7 +230,7 @@ where
let _ = ManuallyDrop::into_inner(manual_overlay);
self.base = self.root.as_widget().layout(
&self.state,
&mut self.state,
renderer,
&layout::Limits::new(Size::ZERO, self.bounds),
);
@ -330,7 +330,7 @@ where
shell.revalidate_layout(|| {
self.base = self.root.as_widget().layout(
&self.state,
&mut self.state,
renderer,
&layout::Limits::new(Size::ZERO, self.bounds),
);

10
widget/src/button.rs
View file

@ -159,14 +159,16 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
layout(limits, self.width, self.height, self.padding, |limits| {
self.content
.as_widget()
.layout(&tree.children[0], renderer, limits)
self.content.as_widget().layout(
&mut tree.children[0],
renderer,
limits,
)
})
}

2
widget/src/canvas.rs
View file

@ -129,7 +129,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

4
widget/src/checkbox.rs
View file

@ -184,7 +184,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -195,7 +195,7 @@ where
|limits| {
let state = tree
.state
.downcast_ref::<widget::text::State<Renderer::Paragraph>>();
.downcast_mut::<widget::text::State<Renderer::Paragraph>>();
widget::text::layout(
state,

4
widget/src/column.rs
View file

@ -122,7 +122,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -139,7 +139,7 @@ where
self.spacing,
self.align_items,
&self.children,
&tree.children,
&mut tree.children,
)
}

2
widget/src/combo_box.rs
View file

@ -305,7 +305,7 @@ where
fn layout(
&self,
tree: &widget::Tree,
tree: &mut widget::Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/container.rs
View file

@ -162,7 +162,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/image.rs
View file

@ -167,7 +167,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/image/viewer.rs
View file

@ -105,7 +105,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

4
widget/src/lazy.rs
View file

@ -152,7 +152,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -327,7 +327,7 @@ where
Renderer: core::Renderer,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

4
widget/src/lazy/component.rs
View file

@ -254,7 +254,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -567,7 +567,7 @@ where
S: 'static + Default,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

6
widget/src/lazy/responsive.rs
View file

@ -60,7 +60,7 @@ impl<'a, Message, Renderer> Content<'a, Message, Renderer>
where
Renderer: core::Renderer,
{
fn layout(&mut self, tree: &Tree, renderer: &Renderer) {
fn layout(&mut self, tree: &mut Tree, renderer: &Renderer) {
if self.layout.is_none() {
self.layout = Some(self.element.as_widget().layout(
tree,
@ -144,7 +144,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -363,7 +363,7 @@ where
Renderer: core::Renderer,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

2
widget/src/mouse_area.rs
View file

@ -120,7 +120,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

4
widget/src/overlay/menu.rs
View file

@ -232,7 +232,7 @@ where
Renderer::Theme: StyleSheet + container::StyleSheet,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,
@ -352,7 +352,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

13
widget/src/pane_grid.rs
View file

@ -275,7 +275,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -475,7 +475,7 @@ where
/// Calculates the [`Layout`] of a [`PaneGrid`].
pub fn layout<Renderer, T>(
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
node: &Node,
@ -483,14 +483,19 @@ pub fn layout<Renderer, T>(
height: Length,
spacing: f32,
contents: impl Iterator<Item = (Pane, T)>,
layout_content: impl Fn(T, &Tree, &Renderer, &layout::Limits) -> layout::Node,
layout_content: impl Fn(
T,
&mut Tree,
&Renderer,
&layout::Limits,
) -> layout::Node,
) -> layout::Node {
let limits = limits.width(width).height(height);
let size = limits.resolve(Size::ZERO);
let regions = node.pane_regions(spacing, size);
let children = contents
.zip(tree.children.iter())
.zip(tree.children.iter_mut())
.filter_map(|((pane, content), tree)| {
let region = regions.get(&pane)?;
let size = Size::new(region.width, region.height);

14
widget/src/pane_grid/content.rs
View file

@ -150,7 +150,7 @@ where
pub(crate) fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -158,7 +158,7 @@ where
let max_size = limits.max();
let title_bar_layout = title_bar.layout(
&tree.children[1],
&mut tree.children[1],
renderer,
&layout::Limits::new(Size::ZERO, max_size),
);
@ -166,7 +166,7 @@ where
let title_bar_size = title_bar_layout.size();
let mut body_layout = self.body.as_widget().layout(
&tree.children[0],
&mut tree.children[0],
renderer,
&layout::Limits::new(
Size::ZERO,
@ -184,9 +184,11 @@ where
vec![title_bar_layout, body_layout],
)
} else {
self.body
.as_widget()
.layout(&tree.children[0], renderer, limits)
self.body.as_widget().layout(
&mut tree.children[0],
renderer,
limits,
)
}
}

6
widget/src/pane_grid/title_bar.rs
View file

@ -213,7 +213,7 @@ where
pub(crate) fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -221,7 +221,7 @@ where
let max_size = limits.max();
let title_layout = self.content.as_widget().layout(
&tree.children[0],
&mut tree.children[0],
renderer,
&layout::Limits::new(Size::ZERO, max_size),
);
@ -230,7 +230,7 @@ where
let mut node = if let Some(controls) = &self.controls {
let mut controls_layout = controls.as_widget().layout(
&tree.children[1],
&mut tree.children[1],
renderer,
&layout::Limits::new(Size::ZERO, max_size),
);

28
widget/src/pick_list.rs
View file

@ -18,7 +18,6 @@ use crate::overlay::menu::{self, Menu};
use crate::scrollable;
use std::borrow::Cow;
use std::cell::RefCell;
pub use crate::style::pick_list::{Appearance, StyleSheet};
@ -175,12 +174,12 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
layout(
tree.state.downcast_ref::<State<Renderer::Paragraph>>(),
tree.state.downcast_mut::<State<Renderer::Paragraph>>(),
renderer,
limits,
self.width,
@ -305,8 +304,8 @@ pub struct State<P: text::Paragraph> {
keyboard_modifiers: keyboard::Modifiers,
is_open: bool,
hovered_option: Option<usize>,
option_paragraphs: RefCell<Vec<P>>,
placeholder_paragraph: RefCell<P>,
options: Vec<P>,
placeholder: P,
}
impl<P: text::Paragraph> State<P> {
@ -317,8 +316,8 @@ impl<P: text::Paragraph> State<P> {
keyboard_modifiers: keyboard::Modifiers::default(),
is_open: bool::default(),
hovered_option: Option::default(),
option_paragraphs: RefCell::new(Vec::new()),
placeholder_paragraph: RefCell::new(Default::default()),
options: Vec::new(),
placeholder: P::default(),
}
}
}
@ -375,7 +374,7 @@ pub struct Icon<Font> {
/// Computes the layout of a [`PickList`].
pub fn layout<Renderer, T>(
state: &State<Renderer::Paragraph>,
state: &mut State<Renderer::Paragraph>,
renderer: &Renderer,
limits: &layout::Limits,
width: Length,
@ -397,9 +396,7 @@ where
let font = font.unwrap_or_else(|| renderer.default_font());
let text_size = text_size.unwrap_or_else(|| renderer.default_size());
let mut paragraphs = state.option_paragraphs.borrow_mut();
paragraphs.resize_with(options.len(), Default::default);
state.options.resize_with(options.len(), Default::default);
let option_text = Text {
content: "",
@ -415,7 +412,7 @@ where
shaping: text_shaping,
};
for (option, paragraph) in options.iter().zip(paragraphs.iter_mut()) {
for (option, paragraph) in options.iter().zip(state.options.iter_mut()) {
let label = option.to_string();
renderer.update_paragraph(
@ -428,9 +425,8 @@ where
}
if let Some(placeholder) = placeholder {
let mut paragraph = state.placeholder_paragraph.borrow_mut();
renderer.update_paragraph(
&mut paragraph,
&mut state.placeholder,
Text {
content: placeholder,
..option_text
@ -441,13 +437,13 @@ where
let max_width = match width {
Length::Shrink => {
let labels_width =
paragraphs.iter().fold(0.0, |width, paragraph| {
state.options.iter().fold(0.0, |width, paragraph| {
f32::max(width, paragraph.min_width())
});
labels_width.max(
placeholder
.map(|_| state.placeholder_paragraph.borrow().min_width())
.map(|_| state.placeholder.min_width())
.unwrap_or(0.0),
)
}

2
widget/src/progress_bar.rs
View file

@ -95,7 +95,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/qr_code.rs
View file

@ -60,7 +60,7 @@ impl<'a, Message, Theme> Widget<Message, Renderer<Theme>> for QRCode<'a> {
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer<Theme>,
_limits: &layout::Limits,
) -> layout::Node {

4
widget/src/radio.rs
View file

@ -211,7 +211,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -222,7 +222,7 @@ where
|limits| {
let state = tree
.state
.downcast_ref::<widget::text::State<Renderer::Paragraph>>();
.downcast_mut::<widget::text::State<Renderer::Paragraph>>();
widget::text::layout(
state,

4
widget/src/row.rs
View file

@ -114,7 +114,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -128,7 +128,7 @@ where
self.spacing,
self.align_items,
&self.children,
&tree.children,
&mut tree.children,
)
}

2
widget/src/rule.rs
View file

@ -72,7 +72,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

4
widget/src/scrollable.rs
View file

@ -230,7 +230,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -242,7 +242,7 @@ where
&self.direction,
|renderer, limits| {
self.content.as_widget().layout(
&tree.children[0],
&mut tree.children[0],
renderer,
limits,
)

2
widget/src/slider.rs
View file

@ -169,7 +169,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/space.rs
View file

@ -55,7 +55,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

2
widget/src/svg.rs
View file

@ -106,7 +106,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {

46
widget/src/text_input.rs
View file

@ -30,8 +30,6 @@ use crate::core::{
};
use crate::runtime::Command;
use std::cell::RefCell;
pub use iced_style::text_input::{Appearance, StyleSheet};
/// A field that can be filled with text.
@ -267,7 +265,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -280,7 +278,7 @@ where
self.font,
self.line_height,
self.icon.as_ref(),
tree.state.downcast_ref::<State<Renderer::Paragraph>>(),
tree.state.downcast_mut::<State<Renderer::Paragraph>>(),
&self.value,
&self.placeholder,
self.is_secure,
@ -469,7 +467,7 @@ pub fn layout<Renderer>(
font: Option<Renderer::Font>,
line_height: text::LineHeight,
icon: Option<&Icon<Renderer::Font>>,
state: &State<Renderer::Paragraph>,
state: &mut State<Renderer::Paragraph>,
value: &Value,
placeholder: &str,
is_secure: bool,
@ -499,14 +497,12 @@ where
shaping: text::Shaping::Advanced,
};
renderer.update_paragraph(
&mut state.placeholder_paragraph.borrow_mut(),
placeholder_text,
);
renderer
.update_paragraph(&mut state.placeholder_paragraph, placeholder_text);
if is_secure {
renderer.update_paragraph(
&mut state.paragraph.borrow_mut(),
&mut state.paragraph,
Text {
content: &value.secure().to_string(),
..placeholder_text
@ -514,7 +510,7 @@ where
);
} else {
renderer.update_paragraph(
&mut state.paragraph.borrow_mut(),
&mut state.paragraph,
Text {
content: &value.to_string(),
..placeholder_text
@ -1072,7 +1068,6 @@ pub fn draw<Renderer>(
}
let text = value.to_string();
let paragraph = &state.paragraph.borrow() as &Renderer::Paragraph;
let (cursor, offset) = if let Some(focus) = state
.is_focused
@ -1083,7 +1078,7 @@ pub fn draw<Renderer>(
cursor::State::Index(position) => {
let (text_value_width, offset) =
measure_cursor_and_scroll_offset(
paragraph,
&state.paragraph,
text_bounds,
position,
);
@ -1121,14 +1116,14 @@ pub fn draw<Renderer>(
let (left_position, left_offset) =
measure_cursor_and_scroll_offset(
paragraph,
&state.paragraph,
text_bounds,
left,
);
let (right_position, right_offset) =
measure_cursor_and_scroll_offset(
paragraph,
&state.paragraph,
text_bounds,
right,
);
@ -1162,7 +1157,7 @@ pub fn draw<Renderer>(
(None, 0.0)
};
let text_width = paragraph.min_width();
let text_width = state.paragraph.min_width();
let render = |renderer: &mut Renderer| {
if let Some((cursor, color)) = cursor {
@ -1171,13 +1166,11 @@ pub fn draw<Renderer>(
renderer.with_translation(Vector::ZERO, |_| {});
}
let placeholder_paragraph = state.placeholder_paragraph.borrow();
renderer.fill_paragraph(
if text.is_empty() {
&placeholder_paragraph
&state.placeholder_paragraph
} else {
paragraph
&state.paragraph
},
Point::new(text_bounds.x, text_bounds.center_y()),
if text.is_empty() {
@ -1219,8 +1212,8 @@ pub fn mouse_interaction(
/// The state of a [`TextInput`].
#[derive(Debug, Default, Clone)]
pub struct State<P: text::Paragraph> {
paragraph: RefCell<P>,
placeholder_paragraph: RefCell<P>,
paragraph: P,
placeholder_paragraph: P,
is_focused: Option<Focus>,
is_dragging: bool,
is_pasting: Option<Value>,
@ -1246,8 +1239,8 @@ impl<P: text::Paragraph> State<P> {
/// Creates a new [`State`], representing a focused [`TextInput`].
pub fn focused() -> Self {
Self {
paragraph: RefCell::new(P::default()),
placeholder_paragraph: RefCell::new(P::default()),
paragraph: P::default(),
placeholder_paragraph: P::default(),
is_focused: None,
is_dragging: false,
is_pasting: None,
@ -1364,7 +1357,7 @@ fn offset<P: text::Paragraph>(
};
let (_, offset) = measure_cursor_and_scroll_offset(
&state.paragraph.borrow() as &P,
&state.paragraph,
text_bounds,
focus_position,
);
@ -1402,7 +1395,6 @@ fn find_cursor_position<P: text::Paragraph>(
let char_offset = state
.paragraph
.borrow()
.hit_test(Point::new(x + offset, text_bounds.height / 2.0))
.map(text::Hit::cursor)?;
@ -1432,7 +1424,7 @@ fn replace_paragraph<Renderer>(
let mut children_layout = layout.children();
let text_bounds = children_layout.next().unwrap().bounds();
*state.paragraph.get_mut() = renderer.create_paragraph(Text {
state.paragraph = renderer.create_paragraph(Text {
font,
line_height,
content: &value.to_string(),

4
widget/src/toggler.rs
View file

@ -178,7 +178,7 @@ where
fn layout(
&self,
tree: &Tree,
tree: &mut Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -192,7 +192,7 @@ where
if let Some(label) = self.label.as_deref() {
let state = tree
.state
.downcast_ref::<widget::text::State<Renderer::Paragraph>>();
.downcast_mut::<widget::text::State<Renderer::Paragraph>>();
widget::text::layout(
state,

6
widget/src/tooltip.rs
View file

@ -135,7 +135,7 @@ where
fn layout(
&self,
tree: &widget::Tree,
tree: &mut widget::Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
@ -302,7 +302,7 @@ where
Renderer::Theme: container::StyleSheet + widget::text::StyleSheet,
{
tooltip: &'b Text<'a, Renderer>,
state: &'b widget::Tree,
state: &'b mut widget::Tree,
cursor_position: Point,
content_bounds: Rectangle,
snap_within_viewport: bool,
@ -319,7 +319,7 @@ where
Renderer::Theme: container::StyleSheet + widget::text::StyleSheet,
{
fn layout(
&self,
&mut self,
renderer: &Renderer,
bounds: Size,
position: Point,

2
widget/src/vertical_slider.rs
View file

@ -166,7 +166,7 @@ where
fn layout(
&self,
_tree: &Tree,
_tree: &mut Tree,
_renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {