Create iced_widget subcrate and re-organize the whole codebase
This commit is contained in:
Héctor Ramón Jiménez
parent
c54409d171
commit
3a0d34c024
209 changed files with 1959 additions and 2183 deletions
373
widget/src/pane_grid/content.rs
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373
widget/src/pane_grid/content.rs
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@ -0,0 +1,373 @@
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use crate::container;
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use crate::core::event::{self, Event};
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use crate::core::layout;
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use crate::core::mouse;
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use crate::core::overlay;
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use crate::core::renderer;
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use crate::core::widget::{self, Tree};
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use crate::core::{Clipboard, Element, Layout, Point, Rectangle, Shell, Size};
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use crate::pane_grid::{Draggable, TitleBar};
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/// The content of a [`Pane`].
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///
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/// [`Pane`]: crate::widget::pane_grid::Pane
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#[allow(missing_debug_implementations)]
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pub struct Content<'a, Message, Renderer = crate::Renderer>
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where
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Renderer: crate::core::Renderer,
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Renderer::Theme: container::StyleSheet,
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{
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title_bar: Option<TitleBar<'a, Message, Renderer>>,
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body: Element<'a, Message, Renderer>,
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style: <Renderer::Theme as container::StyleSheet>::Style,
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}
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impl<'a, Message, Renderer> Content<'a, Message, Renderer>
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where
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Renderer: crate::core::Renderer,
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Renderer::Theme: container::StyleSheet,
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{
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/// Creates a new [`Content`] with the provided body.
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pub fn new(body: impl Into<Element<'a, Message, Renderer>>) -> Self {
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Self {
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title_bar: None,
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body: body.into(),
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style: Default::default(),
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}
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}
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/// Sets the [`TitleBar`] of this [`Content`].
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pub fn title_bar(
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mut self,
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title_bar: TitleBar<'a, Message, Renderer>,
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) -> Self {
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self.title_bar = Some(title_bar);
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self
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}
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/// Sets the style of the [`Content`].
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pub fn style(
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mut self,
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style: impl Into<<Renderer::Theme as container::StyleSheet>::Style>,
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) -> Self {
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self.style = style.into();
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self
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}
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}
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impl<'a, Message, Renderer> Content<'a, Message, Renderer>
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where
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Renderer: crate::core::Renderer,
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Renderer::Theme: container::StyleSheet,
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{
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pub(super) fn state(&self) -> Tree {
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let children = if let Some(title_bar) = self.title_bar.as_ref() {
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vec![Tree::new(&self.body), title_bar.state()]
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} else {
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vec![Tree::new(&self.body), Tree::empty()]
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};
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Tree {
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children,
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..Tree::empty()
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}
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}
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pub(super) fn diff(&self, tree: &mut Tree) {
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if tree.children.len() == 2 {
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if let Some(title_bar) = self.title_bar.as_ref() {
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title_bar.diff(&mut tree.children[1]);
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}
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tree.children[0].diff(&self.body);
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} else {
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*tree = self.state();
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}
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}
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/// Draws the [`Content`] with the provided [`Renderer`] and [`Layout`].
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///
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/// [`Renderer`]: crate::Renderer
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pub 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: &Renderer::Theme,
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style: &renderer::Style,
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layout: Layout<'_>,
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cursor_position: Point,
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viewport: &Rectangle,
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) {
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use container::StyleSheet;
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let bounds = layout.bounds();
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{
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let style = theme.appearance(&self.style);
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container::draw_background(renderer, &style, bounds);
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}
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if let Some(title_bar) = &self.title_bar {
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let mut children = layout.children();
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let title_bar_layout = children.next().unwrap();
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let body_layout = children.next().unwrap();
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let show_controls = bounds.contains(cursor_position);
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self.body.as_widget().draw(
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&tree.children[0],
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renderer,
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theme,
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style,
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body_layout,
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cursor_position,
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viewport,
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);
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title_bar.draw(
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&tree.children[1],
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renderer,
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theme,
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style,
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title_bar_layout,
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cursor_position,
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viewport,
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show_controls,
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);
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} else {
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self.body.as_widget().draw(
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&tree.children[0],
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renderer,
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theme,
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style,
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layout,
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cursor_position,
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viewport,
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);
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}
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}
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pub(crate) fn layout(
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&self,
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renderer: &Renderer,
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limits: &layout::Limits,
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) -> layout::Node {
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if let Some(title_bar) = &self.title_bar {
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let max_size = limits.max();
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let title_bar_layout = title_bar
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.layout(renderer, &layout::Limits::new(Size::ZERO, max_size));
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let title_bar_size = title_bar_layout.size();
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let mut body_layout = self.body.as_widget().layout(
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renderer,
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&layout::Limits::new(
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Size::ZERO,
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Size::new(
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max_size.width,
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max_size.height - title_bar_size.height,
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),
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),
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);
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body_layout.move_to(Point::new(0.0, title_bar_size.height));
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layout::Node::with_children(
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max_size,
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vec![title_bar_layout, body_layout],
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)
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} else {
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self.body.as_widget().layout(renderer, limits)
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}
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}
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pub(crate) fn operate(
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&self,
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tree: &mut Tree,
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layout: Layout<'_>,
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renderer: &Renderer,
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operation: &mut dyn widget::Operation<Message>,
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) {
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let body_layout = if let Some(title_bar) = &self.title_bar {
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let mut children = layout.children();
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title_bar.operate(
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&mut tree.children[1],
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children.next().unwrap(),
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renderer,
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operation,
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);
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children.next().unwrap()
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} else {
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layout
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};
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self.body.as_widget().operate(
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&mut tree.children[0],
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body_layout,
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renderer,
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operation,
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);
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}
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pub(crate) fn on_event(
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&mut self,
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tree: &mut Tree,
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event: Event,
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layout: Layout<'_>,
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cursor_position: Point,
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renderer: &Renderer,
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clipboard: &mut dyn Clipboard,
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shell: &mut Shell<'_, Message>,
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is_picked: bool,
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) -> event::Status {
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let mut event_status = event::Status::Ignored;
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let body_layout = if let Some(title_bar) = &mut self.title_bar {
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let mut children = layout.children();
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event_status = title_bar.on_event(
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&mut tree.children[1],
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event.clone(),
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children.next().unwrap(),
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cursor_position,
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renderer,
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clipboard,
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shell,
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);
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children.next().unwrap()
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} else {
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layout
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};
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let body_status = if is_picked {
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event::Status::Ignored
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} else {
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self.body.as_widget_mut().on_event(
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&mut tree.children[0],
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event,
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body_layout,
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cursor_position,
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renderer,
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clipboard,
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shell,
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)
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};
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event_status.merge(body_status)
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}
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pub(crate) fn mouse_interaction(
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&self,
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tree: &Tree,
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layout: Layout<'_>,
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cursor_position: Point,
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viewport: &Rectangle,
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renderer: &Renderer,
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drag_enabled: bool,
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) -> mouse::Interaction {
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let (body_layout, title_bar_interaction) =
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if let Some(title_bar) = &self.title_bar {
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let mut children = layout.children();
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let title_bar_layout = children.next().unwrap();
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let is_over_pick_area = title_bar
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.is_over_pick_area(title_bar_layout, cursor_position);
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if is_over_pick_area && drag_enabled {
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return mouse::Interaction::Grab;
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}
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let mouse_interaction = title_bar.mouse_interaction(
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&tree.children[1],
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title_bar_layout,
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cursor_position,
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viewport,
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renderer,
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);
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(children.next().unwrap(), mouse_interaction)
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} else {
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(layout, mouse::Interaction::default())
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};
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self.body
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.as_widget()
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.mouse_interaction(
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&tree.children[0],
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body_layout,
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cursor_position,
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viewport,
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renderer,
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)
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.max(title_bar_interaction)
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}
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pub(crate) fn overlay<'b>(
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&'b mut self,
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tree: &'b mut Tree,
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layout: Layout<'_>,
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renderer: &Renderer,
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) -> Option<overlay::Element<'b, Message, Renderer>> {
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if let Some(title_bar) = self.title_bar.as_mut() {
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let mut children = layout.children();
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let title_bar_layout = children.next()?;
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let mut states = tree.children.iter_mut();
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let body_state = states.next().unwrap();
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let title_bar_state = states.next().unwrap();
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match title_bar.overlay(title_bar_state, title_bar_layout, renderer)
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{
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Some(overlay) => Some(overlay),
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None => self.body.as_widget_mut().overlay(
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body_state,
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children.next()?,
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renderer,
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),
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}
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} else {
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self.body.as_widget_mut().overlay(
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&mut tree.children[0],
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layout,
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renderer,
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)
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}
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}
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}
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impl<'a, Message, Renderer> Draggable for &Content<'a, Message, Renderer>
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where
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Renderer: crate::core::Renderer,
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Renderer::Theme: container::StyleSheet,
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{
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fn can_be_dragged_at(
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&self,
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layout: Layout<'_>,
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cursor_position: Point,
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) -> bool {
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if let Some(title_bar) = &self.title_bar {
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let mut children = layout.children();
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let title_bar_layout = children.next().unwrap();
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title_bar.is_over_pick_area(title_bar_layout, cursor_position)
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} else {
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false
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}
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}
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}
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impl<'a, T, Message, Renderer> From<T> for Content<'a, Message, Renderer>
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where
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T: Into<Element<'a, Message, Renderer>>,
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Renderer: crate::core::Renderer,
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Renderer::Theme: container::StyleSheet,
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{
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fn from(element: T) -> Self {
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Self::new(element)
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}
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}
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