From 0d4a17ff5a1aafbf979ed79b77d583c402353019 Mon Sep 17 00:00:00 2001
From: Mido <instructr13@gmail.com>
Date: Sun, 20 Oct 2024 06:49:39 +0900
Subject: [PATCH] canvas general viewing

---
 .../src/app/components/pattern/Pattern.tsx    | 52 ++++++++++++++-----
 .../app/components/pattern/PatternList.tsx    | 30 +++++------
 2 files changed, 50 insertions(+), 32 deletions(-)

diff --git a/apps/frontend/src/app/components/pattern/Pattern.tsx b/apps/frontend/src/app/components/pattern/Pattern.tsx
index 317bf32..db2c484 100644
--- a/apps/frontend/src/app/components/pattern/Pattern.tsx
+++ b/apps/frontend/src/app/components/pattern/Pattern.tsx
@@ -1,21 +1,45 @@
 import type { Pattern as PatternSchema } from "@data-maki/schemas";
-import { Grid } from "@yamada-ui/react";
-import type { CSSProperties } from "react";
-import { BoardCell, isCell } from "../board/Cell";
+import { type CSSProperties, useEffect, useRef } from "react";
+import { isCell } from "../board/Cell";
 
 type Props = Readonly<{
   pattern: PatternSchema;
+  size?: number;
   style?: CSSProperties;
 }>;
 
-export const Pattern = ({ pattern, style }: Props) => (
-  <Grid templateColumns={`repeat(${pattern.width}, 1fr)`} style={style}>
-    {pattern.cells.map((row, rowIndex) =>
-      row.split("").map((cell, colIndex) => {
-        if (!isCell(cell)) throw new Error(`Invalid cell: ${cell}`);
-
-        return <BoardCell key={`${rowIndex}-${colIndex}-${cell}`} cell={cell} size="2rem" />;
-      }),
-    )}
-  </Grid>
-);
+export const Pattern = ({ pattern, size = 192, style }: Props) => {
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+
+  useEffect(() => {
+    if (!canvasRef.current) return;
+
+    const canvas = canvasRef.current;
+    const ctx = canvas.getContext("2d");
+
+    if (!ctx) return;
+
+    const { width, height, cells } = pattern;
+
+    const cellHeight = size / height;
+    const cellWidth = size / width;
+
+    for (let i = 0; i < height; i++) {
+      for (let j = 0; j < width; j++) {
+        const cell = cells[i][j];
+
+        if (isCell(cell)) {
+          if (cell === "1") {
+            ctx.fillStyle = "#000";
+          } else {
+            ctx.fillStyle = "#fff";
+          }
+
+          ctx.fillRect(j * cellWidth, i * cellHeight, cellWidth, cellHeight);
+        }
+      }
+    }
+  }, [pattern, size]);
+
+  return <canvas ref={canvasRef} width={size} height={size} style={style} />;
+};
diff --git a/apps/frontend/src/app/components/pattern/PatternList.tsx b/apps/frontend/src/app/components/pattern/PatternList.tsx
index f8868af..375347c 100644
--- a/apps/frontend/src/app/components/pattern/PatternList.tsx
+++ b/apps/frontend/src/app/components/pattern/PatternList.tsx
@@ -1,16 +1,14 @@
 import { type Pattern as PatternSchema, fixedPatterns } from "@data-maki/schemas";
 import { useVirtualizer } from "@tanstack/react-virtual";
-import { Box, Card, CardBody, FormControl, HStack, Option, ScrollArea, Select } from "@yamada-ui/react";
+import { Box, Card, CardBody, FormControl, HStack, Option, ScrollArea, Select, Textarea } from "@yamada-ui/react";
 import { Fragment, useRef, useState } from "react";
 import { Pattern } from "./Pattern";
 
-type PatternType = "general" | "fixed";
-
 type Props = Readonly<{
   patterns: PatternSchema[];
 }>;
 
-export const PatternListInner = ({ patterns }) => {
+export const PatternListInner = ({ patterns }: Props) => {
   const scrollRef = useRef<HTMLDivElement>(null);
 
   const virtualizer = useVirtualizer({
@@ -18,13 +16,13 @@ export const PatternListInner = ({ patterns }) => {
     gap: 12,
     count: patterns.length,
     getScrollElement: () => scrollRef.current,
-    estimateSize: (i) => patterns[i].width * 32,
+    estimateSize: (i) => 192,
     paddingEnd: 12,
     overscan: 2,
   });
 
   return (
-    <ScrollArea ref={scrollRef} innerProps={{ as: CardBody }} minH="200px">
+    <ScrollArea ref={scrollRef} innerProps={{ as: CardBody }} minH="256px">
       <Box width={`${virtualizer.getTotalSize()}px`} h="100%" position="relative">
         {virtualizer.getVirtualItems().map((virtualItem) => {
           const pattern = patterns[virtualItem.index];
@@ -33,6 +31,7 @@ export const PatternListInner = ({ patterns }) => {
             <Fragment key={virtualItem.key}>
               <Pattern
                 pattern={pattern}
+                size={192}
                 style={{
                   position: "absolute",
                   top: 0,
@@ -49,19 +48,14 @@ export const PatternListInner = ({ patterns }) => {
 };
 
 export const PatternList = ({ patterns }: Props) => {
-  const [patternType, setPatternType] = useState<PatternType>("general");
-
   return (
-    <HStack w="100vw">
-      <FormControl label="Type" w="15vw">
-        <Select value={patternType} onChange={(value) => setPatternType(value as PatternType)}>
-          <Option value={"general" satisfies PatternType}>General</Option>
-          <Option value={"fixed" satisfies PatternType}>Fixed</Option>
-        </Select>
-      </FormControl>
-      <Card variant="outline" w="75vw">
-        <PatternListInner patterns={patternType === "general" ? patterns : fixedPatterns.slice(0, 7)} />
+    <>
+      <Card variant="outline" w="100%">
+        <PatternListInner patterns={patterns} />
       </Card>
-    </HStack>
+      <FormControl mt={8} label="Memo">
+        <Textarea autosize />
+      </FormControl>
+    </>
   );
 };