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|
use crate::{Primitive, Renderer};
use iced_native::{
pane_grid::{self, Pane},
Element, Layout, MouseCursor, Point, Rectangle, Vector,
};
impl pane_grid::Renderer for Renderer {
fn draw<Message>(
&mut self,
defaults: &Self::Defaults,
content: &[(Pane, Element<'_, Message, Self>)],
dragging: Option<Pane>,
layout: Layout<'_>,
cursor_position: Point,
) -> Self::Output {
let mut mouse_cursor = MouseCursor::OutOfBounds;
let mut dragged_pane = None;
let mut panes: Vec<_> = content
.iter()
.zip(layout.children())
.enumerate()
.map(|(i, ((id, pane), layout))| {
let (primitive, new_mouse_cursor) =
pane.draw(self, defaults, layout, cursor_position);
if new_mouse_cursor > mouse_cursor {
mouse_cursor = new_mouse_cursor;
}
if Some(*id) == dragging {
dragged_pane = Some((i, layout));
}
primitive
})
.collect();
let primitives = if let Some((index, layout)) = dragged_pane {
let pane = panes.remove(index);
let bounds = layout.bounds();
// TODO: Fix once proper layering is implemented.
// This is a pretty hacky way to achieve layering.
let clip = Primitive::Clip {
bounds: Rectangle {
x: cursor_position.x - bounds.width / 2.0,
y: cursor_position.y - bounds.height / 2.0,
width: bounds.width + 0.5,
height: bounds.height + 0.5,
},
offset: Vector::new(0, 0),
content: Box::new(Primitive::Cached {
origin: Point::new(
cursor_position.x - bounds.x - bounds.width / 2.0,
cursor_position.y - bounds.y - bounds.height / 2.0,
),
cache: std::sync::Arc::new(pane),
}),
};
panes.push(clip);
panes
} else {
panes
};
(
Primitive::Group { primitives },
if dragging.is_some() {
MouseCursor::Grabbing
} else {
mouse_cursor
},
)
}
}
|
