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Implement Widget::draw for QRCode in iced_graphics

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Héctor Ramón Jiménez 2021-10-30 20:38:12 +07:00
parent 0b66095f9f
commit 77bab6beee
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GPG key ID: 140CC052C94F138E
1 changed files with 41 additions and 41 deletions
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82
graphics/src/widget/qr_code.rs
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@ -5,7 +5,8 @@ use crate::Backend;
use iced_native::layout; use iced_native::layout;
use iced_native::{ 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; use thiserror::Error;
@ -81,56 +82,55 @@ where
fn draw( fn draw(
&self, &self,
_renderer: &mut Renderer<B>, renderer: &mut Renderer<B>,
_style: &renderer::Style, _style: &renderer::Style,
_layout: Layout<'_>, layout: Layout<'_>,
_cursor_position: Point, _cursor_position: Point,
_viewport: &Rectangle, _viewport: &Rectangle,
) { ) {
// let bounds = layout.bounds(); use iced_native::Renderer as _;
// let side_length = self.state.width + 2 * QUIET_ZONE;
// // Reuse cache if possible let bounds = layout.bounds();
// let geometry = self.state.cache.draw(bounds.size(), |frame| { let side_length = self.state.width + 2 * QUIET_ZONE;
// // Scale units to cell size
// frame.scale(f32::from(self.cell_size));
// // Draw background // Reuse cache if possible
// frame.fill_rectangle( let geometry = self.state.cache.draw(bounds.size(), |frame| {
// Point::ORIGIN, // Scale units to cell size
// Size::new(side_length as f32, side_length as f32), frame.scale(f32::from(self.cell_size));
// self.light,
// );
// // Avoid drawing on the quiet zone // Draw background
// frame.translate(Vector::new(QUIET_ZONE as f32, QUIET_ZONE as f32)); frame.fill_rectangle(
Point::ORIGIN,
Size::new(side_length as f32, side_length as f32),
self.light,
);
// // Draw contents // Avoid drawing on the quiet zone
// self.state frame.translate(Vector::new(QUIET_ZONE as f32, QUIET_ZONE as f32));
// .contents
// .iter()
// .enumerate()
// .filter(|(_, value)| **value == qrcode::Color::Dark)
// .for_each(|(index, _)| {
// let row = index / self.state.width;
// let column = index % self.state.width;
// frame.fill_rectangle( // Draw contents
// Point::new(column as f32, row as f32), self.state
// Size::UNIT, .contents
// self.dark, .iter()
// ); .enumerate()
// }); .filter(|(_, value)| **value == qrcode::Color::Dark)
// }); .for_each(|(index, _)| {
let row = index / self.state.width;
let column = index % self.state.width;
// ( frame.fill_rectangle(
// Primitive::Translate { Point::new(column as f32, row as f32),
// translation: Vector::new(bounds.x, bounds.y), Size::UNIT,
// content: Box::new(geometry.into_primitive()), self.dark,
// }, );
// mouse::Interaction::default(), });
// ) });
// TODO
let translation = Vector::new(bounds.x, bounds.y);
renderer.with_translation(translation, |renderer| {
renderer.draw_primitive(geometry.into_primitive());
});
} }
} }