From 32dcfbf1aeadfeb8d8a8ad6b6d1268a4abc0eb85 Mon Sep 17 00:00:00 2001
From: yoosangwook <yoo32767@gmail.com>
Date: Fri, 23 Aug 2024 10:04:36 +0900
Subject: [PATCH 1/2] feat: Add link to Canvas Settings in Headers component

---
 src/components/Headers.jsx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/components/Headers.jsx b/src/components/Headers.jsx
index 07caed71..331e899c 100644
--- a/src/components/Headers.jsx
+++ b/src/components/Headers.jsx
@@ -10,6 +10,7 @@ export default function Headers() {
         <div className="space-x-4 text-xl">
           <Link href="/intro">Intro</Link>
           <Link href="/playground">Playground</Link>
+          <Link href="/settings">Canvas Settings</Link>
           <Link href="/roof">Roof</Link>
           <Link href="/roof2">Roof2</Link>
         </div>

From 13cbc12501acb0458d4018a3903c5a1ec9248d42 Mon Sep 17 00:00:00 2001
From: "hyojun.choi" <chlgkwk123@nate.com>
Date: Fri, 23 Aug 2024 13:16:02 +0900
Subject: [PATCH 2/2] =?UTF-8?q?=EC=A0=90=EC=84=A0=20=EC=B6=94=EA=B0=80=20?=
 =?UTF-8?q?=ED=9B=84=20=EC=97=90=EB=94=94=ED=8C=85=EB=AA=A8=EB=93=9C=20?=
 =?UTF-8?q?=EB=B3=80=EA=B2=BD=20=EC=8B=9C=20=EC=9E=91=EC=97=85=EC=A4=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/components/Roof2.jsx    | 19 +++++++-
 src/hooks/useCanvas.js      |  8 ++--
 src/hooks/useCanvasEvent.js |  3 --
 src/hooks/useMode.js        | 93 +++++++++++++++++++++++++++++++------
 src/store/canvasAtom.js     | 10 ++++
 5 files changed, 111 insertions(+), 22 deletions(-)

diff --git a/src/components/Roof2.jsx b/src/components/Roof2.jsx
index 472d5452..9e3d7589 100644
--- a/src/components/Roof2.jsx
+++ b/src/components/Roof2.jsx
@@ -1,7 +1,7 @@
 'use client'
 
 import { useCanvas } from '@/hooks/useCanvas'
-import { useEffect, useState, useRef } from 'react'
+import { useEffect, useRef, useState } from 'react'
 import { v4 as uuidv4 } from 'uuid'
 import { useMode } from '@/hooks/useMode'
 import { Button } from '@nextui-org/react'
@@ -59,6 +59,8 @@ export default function Roof2(props) {
 
   const wall = useRecoilValue(wallState)
 
+  const [scale, setScale] = useState(1)
+
   //canvas 썸네일
   const [thumbnails, setThumbnails] = useState([])
   const thumbnailProps = {
@@ -547,6 +549,16 @@ export default function Roof2(props) {
     setCompass(degree)
   }
 
+  const changeLength = (e) => {
+    setScale(e)
+    const polygon = canvas?.getActiveObject()
+    if (polygon.type !== 'QPolygon') {
+      return
+    }
+
+    canvas?.renderAll()
+  }
+
   return (
     <>
       {canvas && (
@@ -643,7 +655,7 @@ export default function Roof2(props) {
                 <Button
                   className="m-1 p-2"
                   onClick={() => {
-                    setCanvasBackgroundWithDots(canvas, 20)
+                    setCanvasBackgroundWithDots(canvas, 200)
                   }}
                 >
                   점선 추가
@@ -721,6 +733,9 @@ export default function Roof2(props) {
             <div className="m-2 p-2 w-80">
               <RangeSlider title={`글자 크기${fontSize}`} initValue={fontSize} onchange={setFontSize} />
             </div>
+            <div className="m-2 p-2 w-80">
+              <RangeSlider title={`선택한 obj 가로 늘리기${scale}`} initValue={scale} min={0.01} max={2.0} step={0.01} onchange={changeLength} />
+            </div>
           </div>
         </>
       )}
diff --git a/src/hooks/useCanvas.js b/src/hooks/useCanvas.js
index 63d740de..abcb22cc 100644
--- a/src/hooks/useCanvas.js
+++ b/src/hooks/useCanvas.js
@@ -1,10 +1,10 @@
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useState } from 'react'
 import { fabric } from 'fabric'
 
 import { actionHandler, anchorWrapper, polygonPositionHandler } from '@/util/canvas-util'
 
-import { useRecoilState } from 'recoil'
-import { canvasSizeState, fontSizeState } from '@/store/canvasAtom'
+import { useRecoilState, useSetRecoilState } from 'recoil'
+import { canvasSizeState, fontSizeState, guidePointModeState } from '@/store/canvasAtom'
 import { QLine } from '@/components/fabric/QLine'
 import { QPolygon } from '@/components/fabric/QPolygon'
 import { defineQLine } from '@/util/qline-utils'
@@ -20,6 +20,7 @@ export function useCanvas(id) {
   const [canvasSize] = useRecoilState(canvasSizeState)
   const [fontSize] = useRecoilState(fontSizeState)
   const { setCanvasForEvent, attachDefaultEventOnCanvas } = useCanvasEvent()
+  const setGuidePointMode = useSetRecoilState(guidePointModeState)
 
   /**
    * 처음 셋팅
@@ -400,6 +401,7 @@ export function useCanvas(id) {
   }
 
   const setCanvasBackgroundWithDots = (canvas, gap) => {
+    setGuidePointMode(true)
     // Create a new canvas and fill it with dots
     const tempCanvas = new fabric.StaticCanvas()
     tempCanvas.setDimensions({
diff --git a/src/hooks/useCanvasEvent.js b/src/hooks/useCanvasEvent.js
index c0620468..1947708f 100644
--- a/src/hooks/useCanvasEvent.js
+++ b/src/hooks/useCanvasEvent.js
@@ -18,9 +18,6 @@ export function useCanvasEvent() {
     canvas?.on('object:added', () => {
       document.addEventListener('keydown', handleKeyDown)
     })
-
-    canvas?.on('mouse:move', drawMouseLines)
-    canvas?.on('mouse:out', removeMouseLines)
   }
 
   const onChange = (e) => {
diff --git a/src/hooks/useMode.js b/src/hooks/useMode.js
index 07acbb9c..77d9de25 100644
--- a/src/hooks/useMode.js
+++ b/src/hooks/useMode.js
@@ -7,23 +7,22 @@ import {
   getDirection,
   getStartIndex,
   rearrangeArray,
-  getRoofHeight,
-  getDegreeByChon,
 } from '@/util/canvas-util'
 import { useRecoilState, useRecoilValue } from 'recoil'
 
 import {
   canvasSizeState,
+  compassState,
   drewRoofCellsState,
   fontSizeState,
+  guidePointModeState,
+  modeState,
   roofPolygonArrayState,
   roofPolygonPatternArrayState,
   roofState,
   sortedPolygonArray,
   templateTypeState,
   wallState,
-  compassState,
-  modeState,
 } from '@/store/canvasAtom'
 import { QLine } from '@/components/fabric/QLine'
 import { fabric } from 'fabric'
@@ -46,6 +45,7 @@ export function useMode() {
   const [sortedArray, setSortedArray] = useRecoilState(sortedPolygonArray)
   const [roof, setRoof] = useRecoilState(roofState)
   const [wall, setWall] = useRecoilState(wallState)
+  const isGuidePointMode = useRecoilValue(guidePointModeState)
 
   const [endPoint, setEndPoint] = useState(null)
 
@@ -67,11 +67,11 @@ export function useMode() {
   useEffect(() => {
     // 이벤트 리스너 추가
     // if (!canvas) {
-    canvas?.setZoom(0.8)
+    // canvas?.setZoom(0.8)
     //   return
     // }
     document.addEventListener('keydown', handleKeyDown)
-
+    canvas?.on('mouse:move', drawMouseLines)
     // 컴포넌트가 언마운트될 때 이벤트 리스너 제거
     return () => {
       document.removeEventListener('keydown', handleKeyDown)
@@ -94,6 +94,15 @@ export function useMode() {
     canvas?.on('mouse:move', (e) => addLineEndPointToMousePoint(e, endPoint))
   }, [endPoint])
 
+  useEffect(() => {
+    canvas?.off('mouse:move')
+    canvas?.on('mouse:move', drawMouseLines)
+    if (mode === Mode.EDIT) {
+      canvas?.off('mouse:down')
+      canvas?.on('mouse:down', mouseEvent.editMode)
+    }
+  }, [mode, isGuidePointMode])
+
   const drawMouseLines = (e) => {
     // 현재 마우스 포인터의 위치를 가져옵니다.
     const pointer = canvas?.getPointer(e.e)
@@ -104,9 +113,17 @@ export function useMode() {
     if (canvas?.getActiveObject()) {
       return
     }
+    let newX, newY
+    if (isGuidePointMode && mode === Mode.EDIT) {
+      newX = Math.round(pointer.x / 200) * 200
+      newY = Math.round(pointer.y / 200) * 200
+    } else {
+      newX = pointer.x
+      newY = pointer.y
+    }
 
     // 가로선을 그립니다.
-    const horizontalLine = new fabric.Line([0, pointer.y, canvasSize.horizontal, pointer.y], {
+    const horizontalLine = new fabric.Line([0, newY, canvasSize.horizontal, newY], {
       stroke: 'black',
       strokeWidth: 1,
       selectable: false,
@@ -114,7 +131,7 @@ export function useMode() {
     })
 
     // 세로선을 그립니다.
-    const verticalLine = new fabric.Line([pointer.x, 0, pointer.x, canvasSize.vertical], {
+    const verticalLine = new fabric.Line([newX, 0, newX, canvasSize.vertical], {
       stroke: 'black',
       strokeWidth: 1,
       selectable: false,
@@ -206,8 +223,17 @@ export function useMode() {
 
     const pointer = canvas?.getPointer(e.e)
 
+    let newX, newY
+    if (isGuidePointMode && mode === Mode.EDIT) {
+      newX = Math.round(pointer.x / 200) * 200
+      newY = Math.round(pointer.y / 200) * 200
+    } else {
+      newX = pointer.x
+      newY = pointer.y
+    }
+
     // 마우스 포인터 위치랑 endPoint를 연결하는 line 생성
-    const line = new fabric.Line([endPoint.left, endPoint.top, pointer.x, pointer.y], {
+    const line = new fabric.Line([endPoint.left, endPoint.top, newX, newY], {
       stroke: 'black',
       strokeWidth: 1,
       selectable: false,
@@ -529,13 +555,18 @@ export function useMode() {
       canvas?.renderAll()
     },
     editMode: (options) => {
-      const pointer = canvas?.getPointer(options.e)
+      // const pointer = canvas?.getPointer(options.e)
+
+      const mouseLines = canvas?._objects.filter((obj) => obj.name === 'mouseLine')
+
+      const pointer = calculateIntersection(mouseLines[0], mouseLines[1])
+
       const circle = new fabric.Circle({
         radius: 5,
         fill: 'transparent', // 원 안을 비웁니다.
         stroke: 'red', // 원 테두리 색상을 검은색으로 설정합니다.
-        left: pointer.x - 5,
-        top: pointer.y - 5,
+        left: pointer.x,
+        top: pointer.y,
         originX: 'center',
         originY: 'center',
         selectable: false,
@@ -544,14 +575,48 @@ export function useMode() {
         startPoint.current = circle
         pointCount.current = pointCount.current + 1
       }
+      let prevEndPoint
 
-      setEndPoint(circle)
+      setEndPoint((prev) => {
+        prevEndPoint = prev
+        return circle
+      })
 
       historyPoints.current.push(circle)
       points.current.push(circle)
       canvas?.add(circle)
 
       if (points.current.length === 2) {
+        if (isGuidePointMode) {
+          const vector = {
+            x: points.current[1].left - points.current[0].left,
+            y: points.current[1].top - points.current[0].top,
+          }
+          const slope = Math.abs(vector.y / vector.x) // 기울기 계산
+
+          let scaledVector
+
+          if (slope >= 1) {
+            // 기울기가 1 이상이면 x축 방향으로 그림
+            scaledVector = {
+              x: 0,
+              y: pointer.y - prevEndPoint?.top,
+            }
+          } else {
+            // 기울기가 1 미만이면 y축 방향으로 그림
+            scaledVector = {
+              x: pointer.x - prevEndPoint?.left,
+              y: 0,
+            }
+          }
+
+          const verticalLength = scaledVector.y
+          const horizontalLength = scaledVector.x
+
+          drawCircleAndLine(verticalLength, horizontalLength)
+          canvas?.renderAll()
+          return
+        }
         const length = Number(prompt('길이를 입력하세요:'))
 
         // length 값이 숫자가 아닌 경우
@@ -561,7 +626,7 @@ export function useMode() {
           const lastPoint = historyPoints.current[historyPoints.current.length - 1]
 
           canvas?.remove(lastPoint)
-
+          setEndPoint(prevEndPoint)
           historyPoints.current.pop()
           points.current.pop()
           return
diff --git a/src/store/canvasAtom.js b/src/store/canvasAtom.js
index b8a17a3b..b1bacbdb 100644
--- a/src/store/canvasAtom.js
+++ b/src/store/canvasAtom.js
@@ -10,6 +10,16 @@ export const modeState = atom({
   default: 'default',
 })
 
+export const guidePointModeState = atom({
+  key: 'guidePointModeState',
+  default: false,
+})
+
+export const guideModeLineState = atom({
+  key: 'guideLineModeState',
+  default: false,
+})
+
 export const fontSizeState = atom({
   key: 'fontSizeState',
   default: 16,