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|
use crate::{Primitive, Renderer};
use iced_native::{
mouse,
pane_grid::{self, Axis, Pane},
Element, Layout, 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>,
resizing: Option<Axis>,
layout: Layout<'_>,
cursor_position: Point,
) -> Self::Output {
let pane_cursor_position = if dragging.is_some() {
// TODO: Remove once cursor availability is encoded in the type
// system
Point::new(-1.0, -1.0)
} else {
cursor_position
};
let mut mouse_interaction = mouse::Interaction::default();
let mut dragged_pane = None;
let mut panes: Vec<_> = content
.iter()
.zip(layout.children())
.enumerate()
.map(|(i, ((id, pane), layout))| {
let (primitive, new_mouse_interaction) =
pane.draw(self, defaults, layout, pane_cursor_position);
if new_mouse_interaction > mouse_interaction {
mouse_interaction = new_mouse_interaction;
}
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::Translate {
translation: Vector::new(
cursor_position.x - bounds.x - bounds.width / 2.0,
cursor_position.y - bounds.y - bounds.height / 2.0,
),
content: Box::new(pane),
}),
};
panes.push(clip);
panes
} else {
panes
};
(
Primitive::Group { primitives },
if dragging.is_some() {
mouse::Interaction::Grabbing
} else if let Some(axis) = resizing {
match axis {
Axis::Horizontal => mouse::Interaction::ResizingVertically,
Axis::Vertical => mouse::Interaction::ResizingHorizontally,
}
} else {
mouse_interaction
},
)
}
}
|
