Turn Image into drawing

showbits-thermal-printer/src/drawer/image.rs

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+use image::RgbaImage;
+use palette::{FromColor, IntoColor, LinLumaa};
+use showbits_common::{
+    color::{self, BLACK, WHITE},
+    widgets::Image,
+    Node, Tree, WidgetExt,
+};
+use taffy::{style_helpers::percent, AlignItems, Display, FlexDirection};
+
+use crate::printer::Printer;
+
+use super::{Context, Drawing};
+
+pub struct ImageDrawing {
+    pub image: RgbaImage,
+    pub bright: bool,
+}
+
+impl Drawing for ImageDrawing {
+    fn draw(&self, printer: &mut Printer, ctx: &mut Context) -> anyhow::Result<()> {
+        let mut image = self.image.clone();
+        if self.bright {
+            for pixel in image.pixels_mut() {
+                let mut color = LinLumaa::from_color(color::from_image_color(*pixel));
+                color.luma = 1.0 - 0.4 * (1.0 - color.luma);
+                *pixel = color::to_image_color(color.into_color());
+            }
+        }
+
+        let mut tree = Tree::<Context>::new(WHITE);
+
+        let image = Image::new(image)
+            .with_dither_palette(&[BLACK, WHITE])
+            .node()
+            .register(&mut tree)?;
+
+        let root = Node::empty()
+            .with_size_width(percent(1.0))
+            .with_display(Display::Flex)
+            .with_flex_direction(FlexDirection::Column)
+            .with_align_items(Some(AlignItems::Center))
+            .and_child(image)
+            .register(&mut tree)?;
+
+        printer.print_tree(&mut tree, ctx, root)?;
+        printer.feed()?;
+        Ok(())
+    }
+}