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detail等比缩放

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This commit is contained in:
X1627315083
2026-01-26 15:07:16 +08:00
parent 6ad81a1896
commit ca6fe65dd8
2 changed files with 55 additions and 79 deletions
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132
src/component/Detail/model/modelPosition.vue
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@@ -219,19 +219,14 @@ export default defineComponent({
detailData.frontBack.front[selectItem.imgDomIndex].style.top = y + 'px'
});
const updateElementTransform = (element, rotateDeg = null) => {
const currentTransform = element.style?.transform || '';
// 1. 提取当前的所有rotate
const currentRotates = (currentTransform.match(/rotate[XYZ]?\([^)]+\)/g) || []);
// 2. 获取除镜像和rotate外的其他所有变换
let otherTransforms = currentTransform
.replace(/scaleX\(-1\)|scaleY\(-1\)/g, '') // 移除镜像
.replace(/rotate[XYZ]?\([^)]+\)/g, '') // 移除rotate
.replace(/scaleX\(-1\)|scaleY\(-1\)/g, '')
.replace(/rotate[XYZ]?\([^)]+\)/g, '')
.replace(/\s+/g, ' ')
.trim();
// 3. 构建新transform
const transforms = [];
// 镜像部分
if (element.mirror.x) transforms.push('scaleX(-1)');
if (element.mirror.y) transforms.push('scaleY(-1)');
if (otherTransforms) transforms.push(otherTransforms);
@@ -246,104 +241,85 @@ export default defineComponent({
moveableInstance.value.on('scale', ({ target, delta, direction }) => {
const frontStyle = detailData.frontBack.front[selectItem.imgDomIndex];
if (!frontStyle.mirror) frontStyle.mirror = { x: false, y: false };
const width = parseFloat(frontStyle.style.width);
const height = parseFloat(frontStyle.style.height);
let width = parseFloat(frontStyle.style.width);
let height = parseFloat(frontStyle.style.height);
let left = parseFloat(frontStyle.style.left) || 0;
let top = parseFloat(frontStyle.style.top) || 0;
let rotation = 0;
// 获取原始比例
const originalRatio = width / height;
if (frontStyle.style.transform) {
const transform = frontStyle.style.transform;
const match = transform.match(/rotate\(([-\d.]+)deg\)/);
if (match) {
rotation = parseFloat(match[1]);
}
const match = frontStyle.style.transform.match(/rotate\(([-\d.]+)deg\)/);
if (match) rotation = parseFloat(match[1]);
}
// 根据旋转角度重新计算控制点的方向
function getAdjustedCorner(originalCorner, rotationAngle) {
const angleRad = rotationAngle * (Math.PI / 180);
const cosA = Math.cos(angleRad);
const sinA = Math.sin(angleRad);
const newX = originalCorner.x * cosA - originalCorner.y * sinA;
const newY = originalCorner.x * sinA + originalCorner.y * cosA;
const getAdjustedCorner = (corner, rot) => {
const rad = rot * (Math.PI / 180);
const x = corner.x * Math.cos(rad) - corner.y * Math.sin(rad);
const y = corner.x * Math.sin(rad) + corner.y * Math.cos(rad);
const threshold = 0.5;
return {
x: Math.abs(newX) > threshold ? (newX > 0 ? 1 : -1) : 0,
y: Math.abs(newY) > threshold ? (newY > 0 ? 1 : -1) : 0
};
}
return { x: Math.abs(x) > threshold ? (x > 0 ? 1 : -1) : 0, y: Math.abs(y) > threshold ? (y > 0 ? 1 : -1) : 0 };
};
if (rotation !== 0) {
direction = getAdjustedCorner({x: direction[0], y: direction[1]}, rotation);
direction = getAdjustedCorner({ x: direction[0], y: direction[1] }, rotation);
direction = [direction.x, direction.y];
}
// 判断是否是对角线方向（需要等比缩放）
const isDiagonal = Math.abs(direction[0]) === 1 && Math.abs(direction[1]) === 1;
// 处理轴缩放，包含镜像翻转逻辑
const processAxis = (axis, val, deltaVal, dir, originalPosition, originalSize, keepRatio = false, otherAxisResult = null) => {
let newVal = val * deltaVal;
const processAxis = (axis, val, deltaVal, dir, pos, keepRatio = false, otherAxisResult = null) => {
const mirrorKey = axis === 'width' ? 'x' : 'y';
const isWidth = axis === 'width';
// 检查是否需要镜像翻转（当值小于等于0时）
let newVal = val * deltaVal;
// 翻转处理
if (newVal <= 0) {
frontStyle.mirror[mirrorKey] = !frontStyle.mirror[mirrorKey];
newVal = Math.abs(newVal);
updateElementTransform(frontStyle);
// 镜像翻转后，位置需要根据原始锚点调整
if (dir === -1) {
// 从左上/右上缩放时，位置保持不变
return {
newVal,
adjustPos: originalPosition,
shouldFlip: true
};
} else {
// 从左下/右下缩放时，位置需要调整
const newPosition = originalPosition + (originalSize - newVal) * (frontStyle.mirror[mirrorKey] ? -1 : 1);
return {
newVal,
adjustPos: newPosition,
shouldFlip: true
};
}
}
const shouldMove = (!frontStyle.mirror[mirrorKey] && dir === -1) ||
(frontStyle.mirror[mirrorKey] && dir === 1);
// 位置调整
const shouldMove = (!frontStyle.mirror[mirrorKey] && dir === -1) || (frontStyle.mirror[mirrorKey] && dir === 1);
if (keepRatio && otherAxisResult) {
newVal = isWidth ?
otherAxisResult.newVal * originalRatio :
otherAxisResult.newVal / originalRatio;
newVal = isWidth ? otherAxisResult.newVal * originalRatio : otherAxisResult.newVal / originalRatio;
}
let adjustPos;
if (shouldMove) {
adjustPos = originalPosition - (newVal - originalSize);
} else {
adjustPos = originalPosition;
}
return {
newVal,
adjustPos,
shouldFlip: false
};
const adjustPos = shouldMove ? pos - (newVal - val) : pos;
return { newVal, adjustPos, shouldFlip: newVal !== val && newVal <= 0 };
};
// 自由缩放
const widthResult = processAxis('width', width, delta[0], direction[0], left, width);
const heightResult = processAxis('height', height, delta[1], direction[1], top, height);
if (isDiagonal) {
const mainAxis = Math.abs(delta[0] - 1) > Math.abs(delta[1] - 1) ? 'width' : 'height';
const crossAxis = mainAxis === 'width' ? 'height' : 'width';
const mainDir = mainAxis === 'width' ? direction[0] : direction[1];
const crossDir = crossAxis === 'width' ? direction[0] : direction[1];
const mainDelta = mainAxis === 'width' ? delta[0] : delta[1];
const mainResult = processAxis(mainAxis, mainAxis === 'width' ? width : height, mainDelta, mainDir, mainAxis === 'width' ? left : top);
const crossResult = processAxis(crossAxis, crossAxis === 'width' ? width : height, 1, crossDir, crossAxis === 'width' ? left : top, true, mainResult);
frontStyle.style.width = mainAxis === 'width' ? mainResult.newVal + 'px' : crossResult.newVal + 'px';
frontStyle.style.height = mainAxis === 'height' ? mainResult.newVal + 'px' : crossResult.newVal + 'px';
frontStyle.style.left = mainAxis === 'width' ? mainResult.adjustPos + 'px' : crossResult.adjustPos + 'px';
frontStyle.style.top = mainAxis === 'height' ? mainResult.adjustPos + 'px' : crossResult.adjustPos + 'px';
} else {
const widthResult = processAxis('width', width, delta[0], direction[0], left);
const heightResult = processAxis('height', height, delta[1], direction[1], top);
frontStyle.style.left = widthResult.adjustPos + 'px';
frontStyle.style.top = heightResult.adjustPos + 'px';
frontStyle.style.width = widthResult.newVal + 'px';
frontStyle.style.height = heightResult.newVal + 'px';
// }
}
});
// 旋转
moveableInstance.value.on('rotate', ({ target, beforeRotate }) => {