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Implement split highlight on hover for PaneGrid

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This commit is contained in:
Héctor Ramón Jiménez 2021-01-01 15:28:38 +01:00
parent f8aef03456
commit a7bb7bb2ea
9 changed files with 191 additions and 37 deletions
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9
native/src/renderer/null.rs
View file

@ -246,13 +246,16 @@ impl container::Renderer for Null {
}
impl pane_grid::Renderer for Null {
type Style = ();
fn draw<Message>(
&mut self,
_defaults: &Self::Defaults,
_content: &[(pane_grid::Pane, pane_grid::Content<'_, Message, Self>)],
_dragging: Option<(pane_grid::Pane, Point)>,
_resizing: Option<pane_grid::Axis>,
_resizing: Option<(pane_grid::Axis, Rectangle, bool)>,
_layout: Layout<'_>,
_style: &<Self as pane_grid::Renderer>::Style,
_cursor_position: Point,
) {
}
@ -261,7 +264,7 @@ impl pane_grid::Renderer for Null {
&mut self,
_defaults: &Self::Defaults,
_bounds: Rectangle,
_style: &Self::Style,
_style: &<Self as container::Renderer>::Style,
_title_bar: Option<(
&pane_grid::TitleBar<'_, Message, Self>,
Layout<'_>,
@ -275,7 +278,7 @@ impl pane_grid::Renderer for Null {
&mut self,
_defaults: &Self::Defaults,
_bounds: Rectangle,
_style: &Self::Style,
_style: &<Self as container::Renderer>::Style,
_content: (&Element<'_, Message, Self>, Layout<'_>),
_controls: Option<(&Element<'_, Message, Self>, Layout<'_>)>,
_cursor_position: Point,

58
native/src/widget/pane_grid.rs
View file

@ -97,6 +97,7 @@ pub struct PaneGrid<'a, Message, Renderer: self::Renderer> {
on_click: Option<Box<dyn Fn(Pane) -> Message + 'a>>,
on_drag: Option<Box<dyn Fn(DragEvent) -> Message + 'a>>,
on_resize: Option<(u16, Box<dyn Fn(ResizeEvent) -> Message + 'a>)>,
style: <Renderer as self::Renderer>::Style,
}
impl<'a, Message, Renderer> PaneGrid<'a, Message, Renderer>
@ -128,6 +129,7 @@ where
on_click: None,
on_drag: None,
on_resize: None,
style: Default::default(),
}
}
@ -185,6 +187,15 @@ where
self.on_resize = Some((leeway, Box::new(f)));
self
}
/// Sets the style of the [`PaneGrid`].
pub fn style(
mut self,
style: impl Into<<Renderer as self::Renderer>::Style>,
) -> Self {
self.style = style.into();
self
}
}
impl<'a, Message, Renderer> PaneGrid<'a, Message, Renderer>
@ -382,7 +393,7 @@ where
relative_cursor,
);
if let Some((split, axis)) = clicked_split {
if let Some((split, axis, _)) = clicked_split {
self.state.pick_split(&split, axis);
} else {
self.click_pane(
@ -475,6 +486,23 @@ where
let picked_split = self
.state
.picked_split()
.and_then(|(split, axis)| {
let bounds = layout.bounds();
let splits = self
.state
.split_regions(f32::from(self.spacing), bounds.size());
let (_axis, region, ratio) = splits.get(&split)?;
let region = axis.split_line_bounds(
*region,
*ratio,
f32::from(self.spacing),
);
Some((axis, region + Vector::new(bounds.x, bounds.y), true))
})
.or_else(|| match self.on_resize {
Some((leeway, _)) => {
let bounds = layout.bounds();
@ -488,15 +516,20 @@ where
.state
.split_regions(f32::from(self.spacing), bounds.size());
hovered_split(
let (_split, axis, region) = hovered_split(
splits.iter(),
f32::from(self.spacing + leeway),
relative_cursor,
)
)?;
Some((
axis,
region + Vector::new(bounds.x, bounds.y),
false,
))
}
None => None,
})
.map(|(_, axis)| axis);
});
self::Renderer::draw(
renderer,
@ -505,6 +538,7 @@ where
self.state.picked_pane(),
picked_split,
layout,
&self.style,
cursor_position,
)
}
@ -543,6 +577,9 @@ where
///
/// [renderer]: crate::renderer
pub trait Renderer: crate::Renderer + container::Renderer + Sized {
/// The style supported by this renderer.
type Style: Default;
/// Draws a [`PaneGrid`].
///
/// It receives:
@ -556,8 +593,9 @@ pub trait Renderer: crate::Renderer + container::Renderer + Sized {
defaults: &Self::Defaults,
content: &[(Pane, Content<'_, Message, Self>)],
dragging: Option<(Pane, Point)>,
resizing: Option<Axis>,
resizing: Option<(Axis, Rectangle, bool)>,
layout: Layout<'_>,
style: &<Self as self::Renderer>::Style,
cursor_position: Point,
) -> Self::Output;
@ -572,7 +610,7 @@ pub trait Renderer: crate::Renderer + container::Renderer + Sized {
&mut self,
defaults: &Self::Defaults,
bounds: Rectangle,
style: &Self::Style,
style: &<Self as container::Renderer>::Style,
title_bar: Option<(&TitleBar<'_, Message, Self>, Layout<'_>)>,
body: (&Element<'_, Message, Self>, Layout<'_>),
cursor_position: Point,
@ -590,7 +628,7 @@ pub trait Renderer: crate::Renderer + container::Renderer + Sized {
&mut self,
defaults: &Self::Defaults,
bounds: Rectangle,
style: &Self::Style,
style: &<Self as container::Renderer>::Style,
content: (&Element<'_, Message, Self>, Layout<'_>),
controls: Option<(&Element<'_, Message, Self>, Layout<'_>)>,
cursor_position: Point,
@ -617,14 +655,14 @@ fn hovered_split<'a>(
splits: impl Iterator<Item = (&'a Split, &'a (Axis, Rectangle, f32))>,
spacing: f32,
cursor_position: Point,
) -> Option<(Split, Axis)> {
) -> Option<(Split, Axis, Rectangle)> {
splits
.filter_map(|(split, (axis, region, ratio))| {
let bounds =
axis.split_line_bounds(*region, *ratio, f32::from(spacing));
if bounds.contains(cursor_position) {
Some((*split, *axis))
Some((*split, *axis, bounds))
} else {
None
}

9
native/src/widget/pane_grid/content.rs
View file

@ -12,7 +12,7 @@ use crate::{Clipboard, Element, Hasher, Layout, Point, Size};
pub struct Content<'a, Message, Renderer: pane_grid::Renderer> {
title_bar: Option<TitleBar<'a, Message, Renderer>>,
body: Element<'a, Message, Renderer>,
style: Renderer::Style,
style: <Renderer as container::Renderer>::Style,
}
impl<'a, Message, Renderer> Content<'a, Message, Renderer>
@ -24,7 +24,7 @@ where
Self {
title_bar: None,
body: body.into(),
style: Renderer::Style::default(),
style: Default::default(),
}
}
@ -38,7 +38,10 @@ where
}
/// Sets the style of the [`Content`].
pub fn style(mut self, style: impl Into<Renderer::Style>) -> Self {
pub fn style(
mut self,
style: impl Into<<Renderer as container::Renderer>::Style>,
) -> Self {
self.style = style.into();
self
}

10
native/src/widget/pane_grid/title_bar.rs
View file

@ -1,3 +1,4 @@
use crate::container;
use crate::event::{self, Event};
use crate::layout;
use crate::pane_grid;
@ -12,7 +13,7 @@ pub struct TitleBar<'a, Message, Renderer: pane_grid::Renderer> {
controls: Option<Element<'a, Message, Renderer>>,
padding: u16,
always_show_controls: bool,
style: Renderer::Style,
style: <Renderer as container::Renderer>::Style,
}
impl<'a, Message, Renderer> TitleBar<'a, Message, Renderer>
@ -29,7 +30,7 @@ where
controls: None,
padding: 0,
always_show_controls: false,
style: Renderer::Style::default(),
style: Default::default(),
}
}
@ -49,7 +50,10 @@ where
}
/// Sets the style of the [`TitleBar`].
pub fn style(mut self, style: impl Into<Renderer::Style>) -> Self {
pub fn style(
mut self,
style: impl Into<<Renderer as container::Renderer>::Style>,
) -> Self {
self.style = style.into();
self
}