me/iced
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Implement Widget::draw for QRCode in iced_graphics

Browse source
This commit is contained in:
Héctor Ramón Jiménez 2021-10-30 20:38:12 +07:00
parent 0b66095f9f
commit 77bab6beee
No known key found for this signature in database
GPG key ID: 140CC052C94F138E
1 changed files with 41 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

82
graphics/src/widget/qr_code.rs
View file

@ -5,7 +5,8 @@ use crate::Backend;
use iced_native::layout;
use iced_native::{
Color, Element, Hasher, Layout, Length, Point, Rectangle, Size, Widget,
Color, Element, Hasher, Layout, Length, Point, Rectangle, Size, Vector,
Widget,
};
use thiserror::Error;
@ -81,56 +82,55 @@ where
fn draw(
&self,
_renderer: &mut Renderer<B>,
renderer: &mut Renderer<B>,
_style: &renderer::Style,
_layout: Layout<'_>,
layout: Layout<'_>,
_cursor_position: Point,
_viewport: &Rectangle,
) {
// let bounds = layout.bounds();
// let side_length = self.state.width + 2 * QUIET_ZONE;
use iced_native::Renderer as _;
// // Reuse cache if possible
// let geometry = self.state.cache.draw(bounds.size(), |frame| {
// // Scale units to cell size
// frame.scale(f32::from(self.cell_size));
let bounds = layout.bounds();
let side_length = self.state.width + 2 * QUIET_ZONE;
// // Draw background
// frame.fill_rectangle(
// Point::ORIGIN,
// Size::new(side_length as f32, side_length as f32),
// self.light,
// );
// Reuse cache if possible
let geometry = self.state.cache.draw(bounds.size(), |frame| {
// Scale units to cell size
frame.scale(f32::from(self.cell_size));
// // Avoid drawing on the quiet zone
// frame.translate(Vector::new(QUIET_ZONE as f32, QUIET_ZONE as f32));
// Draw background
frame.fill_rectangle(
Point::ORIGIN,
Size::new(side_length as f32, side_length as f32),
self.light,
);
// // Draw contents
// self.state
// .contents
// .iter()
// .enumerate()
// .filter(|(_, value)| **value == qrcode::Color::Dark)
// .for_each(|(index, _)| {
// let row = index / self.state.width;
// let column = index % self.state.width;
// Avoid drawing on the quiet zone
frame.translate(Vector::new(QUIET_ZONE as f32, QUIET_ZONE as f32));
// frame.fill_rectangle(
// Point::new(column as f32, row as f32),
// Size::UNIT,
// self.dark,
// );
// });
// });
// Draw contents
self.state
.contents
.iter()
.enumerate()
.filter(|(_, value)| **value == qrcode::Color::Dark)
.for_each(|(index, _)| {
let row = index / self.state.width;
let column = index % self.state.width;
// (
// Primitive::Translate {
// translation: Vector::new(bounds.x, bounds.y),
// content: Box::new(geometry.into_primitive()),
// },
// mouse::Interaction::default(),
// )
// TODO
frame.fill_rectangle(
Point::new(column as f32, row as f32),
Size::UNIT,
self.dark,
);
});
});
let translation = Vector::new(bounds.x, bounds.y);
renderer.with_translation(translation, |renderer| {
renderer.draw_primitive(geometry.into_primitive());
});
}
}