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Implement Widget::draw for Canvas in iced_graphics

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Héctor Ramón Jiménez 2021-10-29 16:45:47 +07:00
parent 0df5b5bb7b
commit de728737fd
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GPG key ID: 140CC052C94F138E
1 changed files with 21 additions and 23 deletions
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44
graphics/src/widget/canvas.rs
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@ -4,11 +4,12 @@
//! [`Frame`]. It can be used for animation, data visualization, game graphics,
//! and more!
use crate::renderer::{self, Renderer};
use crate::Backend;
use crate::{Backend, Primitive};
use iced_native::layout;
use iced_native::{
Clipboard, Element, Hasher, Layout, Length, Point, Rectangle, Size, Widget,
Clipboard, Element, Hasher, Layout, Length, Point, Rectangle, Size, Vector,
Widget,
};
use std::hash::Hash;
use std::marker::PhantomData;
@ -188,31 +189,28 @@ where
fn draw(
&self,
_renderer: &mut Renderer<B>,
renderer: &mut Renderer<B>,
_style: &renderer::Style,
_layout: Layout<'_>,
_cursor_position: Point,
layout: Layout<'_>,
cursor_position: Point,
_viewport: &Rectangle,
) {
// let bounds = layout.bounds();
// let translation = Vector::new(bounds.x, bounds.y);
// let cursor = Cursor::from_window_position(cursor_position);
use iced_native::Renderer as _;
// (
// Primitive::Translate {
// translation,
// content: Box::new(Primitive::Group {
// primitives: self
// .program
// .draw(bounds, cursor)
// .into_iter()
// .map(Geometry::into_primitive)
// .collect(),
// }),
// },
// self.program.mouse_interaction(bounds, cursor),
// )
// TODO
let bounds = layout.bounds();
let translation = Vector::new(bounds.x, bounds.y);
let cursor = Cursor::from_window_position(cursor_position);
renderer.with_translation(translation, |renderer| {
renderer.draw_primitive(Primitive::Group {
primitives: self
.program
.draw(bounds, cursor)
.into_iter()
.map(Geometry::into_primitive)
.collect(),
});
});
}
fn hash_layout(&self, state: &mut Hasher) {