From a4f4acab509196f7f65785cea226a284792eb2f4 Mon Sep 17 00:00:00 2001
From: chenshenhai <cshenhai@gmail.com>
Date: Fri, 24 Feb 2023 22:22:46 +0800
Subject: [PATCH] feat: implement limit ratio of element operation

---
 packages/core/src/lib/element.ts | 419 +++++++++++++++++++++----------
 packages/idraw/dev/data.ts       |   7 +-
 2 files changed, 299 insertions(+), 127 deletions(-)

diff --git a/packages/core/src/lib/element.ts b/packages/core/src/lib/element.ts
index 214974f..54851da 100644
--- a/packages/core/src/lib/element.ts
+++ b/packages/core/src/lib/element.ts
@@ -219,51 +219,106 @@ function calcuScaleElemPosition(
       break;
     }
     case 'top': {
-      if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
-        if (p.h - moveY > 0) {
-          p.y += moveY;
-          p.h -= moveY;
-        }
-      } else if (elem.angle > 0 || elem.angle < 0) {
-        const angle =
-          elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
-        let moveDist = calcMoveDist(moveX, moveY);
-        let centerX = p.x + elem.w / 2;
-        let centerY = p.y + elem.h / 2;
-        if (angle < 90) {
-          moveDist = 0 - changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.sin(radian);
-          centerY = centerY - centerMoveDist * Math.cos(radian);
-        } else if (angle < 180) {
-          moveDist = changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 90);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.cos(radian);
-          centerY = centerY + centerMoveDist * Math.sin(radian);
-        } else if (angle < 270) {
-          moveDist = changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle - 180);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX - centerMoveDist * Math.sin(radian);
-          centerY = centerY + centerMoveDist * Math.cos(radian);
-        } else if (angle < 360) {
-          moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 270);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX - centerMoveDist * Math.cos(radian);
-          centerY = centerY - centerMoveDist * Math.sin(radian);
-        }
-        if (p.h + moveDist > 0) {
-          p.h = p.h + moveDist;
-          p.x = centerX - p.w / 2;
-          p.y = centerY - p.h / 2;
+      if (elem.operation?.limitRatio === true) {
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (p.h - moveY > 0) {
+            p.y += moveY;
+            p.h -= moveY;
+            p.x += ((moveY / elem.h) * elem.w) / 2;
+            p.w -= (moveY / elem.h) * elem.w;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          } else if (angle < 180) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 360) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.cos(radian);
+            centerY = centerY - centerMoveDist * Math.sin(radian);
+          }
+          if (p.h + moveDist > 0) {
+            p.h = p.h + moveDist;
+            p.w = p.w + (moveDist / elem.h) * elem.w;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (p.h - moveY > 0) {
+            p.y += moveY;
+            p.h -= moveY;
+            p.x -= moveX / 2;
+            p.w += moveX;
+          }
         }
       } else {
-        if (p.h - moveY > 0) {
-          p.y += moveY;
-          p.h -= moveY;
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (p.h - moveY > 0) {
+            p.y += moveY;
+            p.h -= moveY;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          } else if (angle < 180) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 360) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.cos(radian);
+            centerY = centerY - centerMoveDist * Math.sin(radian);
+          }
+          if (p.h + moveDist > 0) {
+            p.h = p.h + moveDist;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (p.h - moveY > 0) {
+            p.y += moveY;
+            p.h -= moveY;
+          }
         }
       }
       break;
@@ -353,50 +408,104 @@ function calcuScaleElemPosition(
       break;
     }
     case 'right': {
-      if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
-        if (elem.w + moveX > 0) {
-          p.w += moveX;
-        }
-      } else if (elem.angle > 0 || elem.angle < 0) {
-        const angle =
-          elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
-        let moveDist = calcMoveDist(moveX, moveY);
-        let centerX = p.x + elem.w / 2;
-        let centerY = p.y + elem.h / 2;
-        if (angle < 90) {
-          moveDist = changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.cos(radian);
-          centerY = centerY + centerMoveDist * Math.sin(radian);
-        } else if (angle < 180) {
-          moveDist = changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle - 90);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX - centerMoveDist * Math.sin(radian);
-          centerY = centerY + centerMoveDist * Math.cos(radian);
-        } else if (angle < 270) {
-          moveDist = changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle - 180);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.cos(radian);
-          centerY = centerY + centerMoveDist * Math.sin(radian);
-          moveDist = 0 - moveDist;
-        } else if (angle < 360) {
-          moveDist = changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 270);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.sin(radian);
-          centerY = centerY - centerMoveDist * Math.cos(radian);
-        }
-        if (p.w + moveDist > 0) {
-          p.w = p.w + moveDist;
-          p.x = centerX - p.w / 2;
-          p.y = centerY - p.h / 2;
+      if (elem.operation?.limitRatio === true) {
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (elem.w + moveX > 0) {
+            p.w += moveX;
+            p.h += (moveX * elem.h) / elem.w;
+            p.y -= (moveX * elem.h) / elem.w / 2;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          } else if (angle < 180) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+            moveDist = 0 - moveDist;
+          } else if (angle < 360) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          }
+          if (p.w + moveDist > 0) {
+            p.w = p.w + moveDist;
+            p.h = p.h + (moveDist / elem.w) * elem.h;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (elem.w + moveX > 0) {
+            p.w += moveX;
+            p.h += (moveX * elem.h) / elem.w;
+            p.y -= (moveX * elem.h) / elem.w / 2;
+          }
         }
       } else {
-        if (elem.w + moveX > 0) {
-          p.w += moveX;
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (elem.w + moveX > 0) {
+            p.w += moveX;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          } else if (angle < 180) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+            moveDist = 0 - moveDist;
+          } else if (angle < 360) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          }
+          if (p.w + moveDist > 0) {
+            p.w = p.w + moveDist;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (elem.w + moveX > 0) {
+            p.w += moveX;
+          }
         }
       }
 
@@ -426,49 +535,102 @@ function calcuScaleElemPosition(
       break;
     }
     case 'bottom': {
-      if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
-        if (elem.h + moveY > 0) {
-          p.h += moveY;
-        }
-      } else if (elem.angle > 0 || elem.angle < 0) {
-        const angle =
-          elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
-        let moveDist = calcMoveDist(moveX, moveY);
-        let centerX = p.x + elem.w / 2;
-        let centerY = p.y + elem.h / 2;
-        if (angle < 90) {
-          moveDist = changeMoveDistDirect(moveDist, moveY);
-          const radian = parseRadian(angle);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX - centerMoveDist * Math.sin(radian);
-          centerY = centerY + centerMoveDist * Math.cos(radian);
-        } else if (angle < 180) {
-          moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 90);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX - centerMoveDist * Math.cos(radian);
-          centerY = centerY - centerMoveDist * Math.sin(radian);
-        } else if (angle < 270) {
-          moveDist = changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 180);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.sin(radian);
-          centerY = centerY - centerMoveDist * Math.cos(radian);
-        } else if (angle < 360) {
-          moveDist = changeMoveDistDirect(moveDist, moveX);
-          const radian = parseRadian(angle - 270);
-          const centerMoveDist = moveDist / 2;
-          centerX = centerX + centerMoveDist * Math.cos(radian);
-          centerY = centerY + centerMoveDist * Math.sin(radian);
-        }
-        if (p.h + moveDist > 0) {
-          p.h = p.h + moveDist;
-          p.x = centerX - p.w / 2;
-          p.y = centerY - p.h / 2;
+      if (elem.operation?.limitRatio === true) {
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (elem.h + moveY > 0) {
+            p.h += moveY;
+            p.x -= ((moveY / elem.h) * elem.w) / 2;
+            p.w += (moveY / elem.h) * elem.w;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 180) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.cos(radian);
+            centerY = centerY - centerMoveDist * Math.sin(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          } else if (angle < 360) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          }
+          if (p.h + moveDist > 0) {
+            p.h = p.h + moveDist;
+            p.w = p.w + (moveDist / elem.h) * elem.w;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (elem.h + moveY > 0) {
+            p.h += moveY;
+            p.x -= ((moveY / elem.h) * elem.w) / 2;
+            p.w += (moveY / elem.h) * elem.w;
+          }
         }
       } else {
-        if (elem.h + moveY > 0) {
-          p.h += moveY;
+        if (elem.angle === 0 || Math.abs(elem.angle) < limitQbliqueAngle) {
+          if (elem.h + moveY > 0) {
+            p.h += moveY;
+          }
+        } else if (elem.angle > 0 || elem.angle < 0) {
+          const angle =
+            elem.angle > 0 ? elem.angle : Math.max(0, elem.angle + 360);
+          let moveDist = calcMoveDist(moveX, moveY);
+          let centerX = p.x + elem.w / 2;
+          let centerY = p.y + elem.h / 2;
+          if (angle < 90) {
+            moveDist = changeMoveDistDirect(moveDist, moveY);
+            const radian = parseRadian(angle);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.sin(radian);
+            centerY = centerY + centerMoveDist * Math.cos(radian);
+          } else if (angle < 180) {
+            moveDist = 0 - changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 90);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX - centerMoveDist * Math.cos(radian);
+            centerY = centerY - centerMoveDist * Math.sin(radian);
+          } else if (angle < 270) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 180);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.sin(radian);
+            centerY = centerY - centerMoveDist * Math.cos(radian);
+          } else if (angle < 360) {
+            moveDist = changeMoveDistDirect(moveDist, moveX);
+            const radian = parseRadian(angle - 270);
+            const centerMoveDist = moveDist / 2;
+            centerX = centerX + centerMoveDist * Math.cos(radian);
+            centerY = centerY + centerMoveDist * Math.sin(radian);
+          }
+          if (p.h + moveDist > 0) {
+            p.h = p.h + moveDist;
+            p.x = centerX - p.w / 2;
+            p.y = centerY - p.h / 2;
+          }
+        } else {
+          if (elem.h + moveY > 0) {
+            p.h += moveY;
+          }
         }
       }
 
@@ -503,6 +665,8 @@ function calcuScaleElemPosition(
         if (elem.w - moveX > 0) {
           p.x += moveX;
           p.w -= moveX;
+          p.h -= (moveX / elem.w) * elem.h;
+          p.y += ((moveX / elem.w) * elem.h) / 2;
         }
       } else if (elem.angle > 0 || elem.angle < 0) {
         const angle =
@@ -537,6 +701,7 @@ function calcuScaleElemPosition(
         }
         if (p.w + moveDist > 0) {
           p.w = p.w + moveDist;
+          p.h = p.h + (moveDist / elem.w) * elem.h;
           p.x = centerX - p.w / 2;
           p.y = centerY - p.h / 2;
         }
@@ -544,6 +709,8 @@ function calcuScaleElemPosition(
         if (elem.w - moveX > 0) {
           p.x += moveX;
           p.w -= moveX;
+          p.h -= (moveX / elem.w) * elem.h;
+          p.y += ((moveX / elem.w) * elem.h) / 2;
         }
       }
       break;
diff --git a/packages/idraw/dev/data.ts b/packages/idraw/dev/data.ts
index 28f0d79..a44107d 100644
--- a/packages/idraw/dev/data.ts
+++ b/packages/idraw/dev/data.ts
@@ -42,6 +42,10 @@ const data = {
       type: 'image',
       desc: {
         src: './images/computer.png'
+      },
+      operation: {
+        // disableRotate: true,
+        limitRatio: true
       }
     },
     {
@@ -51,11 +55,12 @@ const data = {
       w: 100,
       h: 100,
       type: 'svg',
+      angle: 135,
       desc: {
         svg: '<svg t="1622524892065" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="9337" width="200" height="200"><path d="M511.6 76.3C264.3 76.2 64 276.4 64 523.5 64 718.9 189.3 885 363.8 946c23.5 5.9 19.9-10.8 19.9-22.2v-77.5c-135.7 15.9-141.2-73.9-150.3-88.9C215 726 171.5 718 184.5 703c30.9-15.9 62.4 4 98.9 57.9 26.4 39.1 77.9 32.5 104 26 5.7-23.5 17.9-44.5 34.7-60.8-140.6-25.2-199.2-111-199.2-213 0-49.5 16.3-95 48.3-131.7-20.4-60.5 1.9-112.3 4.9-120 58.1-5.2 118.5 41.6 123.2 45.3 33-8.9 70.7-13.6 112.9-13.6 42.4 0 80.2 4.9 113.5 13.9 11.3-8.6 67.3-48.8 121.3-43.9 2.9 7.7 24.7 58.3 5.5 118 32.4 36.8 48.9 82.7 48.9 132.3 0 102.2-59 188.1-200 212.9 23.5 23.2 38.1 55.4 38.1 91v112.5c0.8 9 0 17.9 15 17.9 177.1-59.7 304.6-227 304.6-424.1 0-247.2-200.4-447.3-447.5-447.3z" p-id="9338"></path></svg>'
       },
       operation: {
-        disableRotate: true,
+        // disableRotate: true,
         limitRatio: true
       }
     }