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fix: #2390 [Preview]缩小后scale为负值 (#2391)

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tnnevol 2022-11-17 23:51:34 +08:00 committed by GitHub
parent c5713c75ec
commit 4e16438494
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1 changed files with 9 additions and 1 deletions
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10
src/components/Preview/src/Functional.vue
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@ -141,8 +141,16 @@
} }
// 缩放函数 // 缩放函数
function scaleFunc(num: number) { function scaleFunc(num: number) {
// 最小缩放
const MIN_SCALE = 0.02;
// 放大缩小的颗粒度
const GRA = 0.1;
if (imgState.imgScale <= 0.2 && num < 0) return; if (imgState.imgScale <= 0.2 && num < 0) return;
imgState.imgScale += num; imgState.imgScale += num * GRA;
// scale 不能 < 0，否则图片会倒置放大
if (imgState.imgScale < 0) {
imgState.imgScale = MIN_SCALE;
}
} }
// 旋转图片 // 旋转图片