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Implement composable, type-safe renderer fallback

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Héctor Ramón Jiménez 2024-03-21 22:27:17 +01:00
parent 7e4ae8450e
commit 3645d34d6a
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GPG key ID: 7CC46565708259A7
35 changed files with 1474 additions and 1210 deletions
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18
examples/game_of_life/src/main.rs
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@ -193,7 +193,7 @@ mod grid {
use iced::touch;
use iced::widget::canvas;
use iced::widget::canvas::event::{self, Event};
use iced::widget::canvas::{Cache, Canvas, Frame, Geometry, Path, Text};
use iced::widget::canvas::{frame, Cache, Canvas, Frame, Path, Text};
use iced::{
Color, Element, Length, Point, Rectangle, Renderer, Size, Theme, Vector,
};
@ -516,11 +516,11 @@ mod grid {
fn draw(
&self,
_interaction: &Interaction,
renderer: &Renderer,
renderer: &mut Renderer,
_theme: &Theme,
bounds: Rectangle,
cursor: mouse::Cursor,
) -> Vec<Geometry> {
) {
let center = Vector::new(bounds.width / 2.0, bounds.height / 2.0);
let life = self.life_cache.draw(renderer, bounds.size(), |frame| {
@ -546,7 +546,7 @@ mod grid {
});
let overlay = {
let mut frame = Frame::new(renderer, bounds.size());
let mut frame = frame(renderer, bounds.size());
let hovered_cell = cursor.position_in(bounds).map(|position| {
Cell::at(self.project(position, frame.size()))
@ -599,12 +599,10 @@ mod grid {
..text
});
frame.into_geometry()
frame.into()
};
if self.scaling < 0.2 || !self.show_lines {
vec![life, overlay]
} else {
if self.scaling >= 0.2 && self.show_lines {
let grid =
self.grid_cache.draw(renderer, bounds.size(), |frame| {
frame.translate(center);
@ -640,7 +638,9 @@ mod grid {
}
});
vec![life, grid, overlay]
renderer.draw_geometry([life, grid, overlay]);
} else {
renderer.draw_geometry([life, overlay]);
}
}