Add tic tac toe drawing

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

@@ -0,0 +1,72 @@
+use showbits_common::{
+    color::{BLACK, WHITE},
+    widgets::{Block, Text},
+    Node, Tree, WidgetExt,
+};
+use taffy::{
+    style_helpers::{length, percent, repeat},
+    AlignItems, Display, FlexDirection,
+};
+
+use crate::printer::Printer;
+
+use super::{Context, Drawing};
+
+pub struct TicTacToeDrawing;
+
+impl Drawing for TicTacToeDrawing {
+    fn draw(&self, printer: &mut Printer, ctx: &mut Context) -> anyhow::Result<()> {
+        let block_size = length(128.0);
+        let width = length(2.0);
+
+        let mut tree = Tree::<Context>::new(WHITE);
+
+        let mut grid = Node::empty()
+            .with_display(Display::Grid)
+            .with_grid_template_columns(vec![repeat(3, vec![block_size])])
+            .with_grid_auto_rows(vec![block_size]);
+
+        for y in 0..3 {
+            for x in 0..3 {
+                let mut block = Block::new().with_border(BLACK).node();
+
+                if x >= 1 {
+                    block = block.with_border_left(width);
+                }
+                if x <= 1 {
+                    block = block.with_border_right(width);
+                }
+
+                if y >= 1 {
+                    block = block.with_border_top(width);
+                }
+                if y <= 1 {
+                    block = block.with_border_bottom(width);
+                }
+
+                grid = grid.and_child(block.register(&mut tree)?);
+            }
+        }
+
+        let title = Text::new()
+            .with_metrics(Text::default_metrics().scale(2.0))
+            .and_plain("Tick-Tack-Zeh")
+            .widget(&mut ctx.font_stuff)
+            .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))
+            .with_gap(length(16.0))
+            .and_child(title)
+            .and_child(grid.register(&mut tree)?)
+            .register(&mut tree)?;
+
+        printer.print_tree(&mut tree, ctx, root)?;
+        printer.feed()?;
+        Ok(())
+    }
+}