feat(editor): 添加界面自动对齐，吸附屏幕/组件边缘并绘制引导线 - #177
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Serendisand
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Aug 5, 2026
Serendisand
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- 拖动时吸附屏幕中心线与四边，以及目标组件的左/中/右、上/中/下边缘
- 被吸附的候选边缘绘制高亮引导线，盒子边缘绘制半透明引导线
- 垂直/水平重叠范围内绘制候选组件上下/左右两条线辅助对齐
- RESIZE 模式下仅显示引导线不吸附；CT 组件不参与横向吸附
- 吸附前校验位置公式可表达且落在 move() 拖拽范围内，避免回跳与鼠标偏移漂移
- 修复 move() 远锚点公式未使用缩放后尺寸导致的 scale!=1 时拖动偏移
- 经三个子代理审查（数学正确性/集成生命周期/代码规范）后修订
- 拖动时吸附屏幕中心线与四边，以及目标组件的左/中/右、上/中/下边缘 - 被吸附的候选边缘绘制高亮引导线，盒子边缘绘制半透明引导线 - 垂直/水平重叠范围内绘制候选组件上下/左右两条线辅助对齐 - RESIZE 模式下仅显示引导线不吸附；CT 组件不参与横向吸附 - 吸附前校验位置公式可表达且落在 move() 拖拽范围内，避免回跳与鼠标偏移漂移 - 修复 move() 远锚点公式未使用缩放后尺寸导致的 scale!=1 时拖动偏移 - 经三个子代理审查（数学正确性/集成生命周期/代码规范）后修订
Serendisand
marked this pull request as draft
August 5, 2026 04:08
- 屏幕候选仅保留中心，去掉四边吸附，默认只显示十字两条 - 与其他组件对齐时只在该组件匹配边画一条细线(原画两条边+中心) - 移除 snap 的鼠标偏移补偿：原逻辑在吸附半径内吸收慢速鼠标移动，导致组件被钉死无法拖走 - 引导线按颜色分批绘制，减少每帧 GL 状态切换
- TextRenderer.widths 改为 1024 上限的 LRU，消除随会话增长的无界堆泄漏 - EntityCulling 在世界切换时重置在途遮挡查询，释放死实体强引用并回收查询 ID - KawaseBlur/KawaseBloom 在 iterations<=0 时提前返回，修复 framebufferList.get(1) 越界崩溃 - KawaseBlur 窗口尺寸变化时重建 FBO，并增加迭代次数上限防 GPU 内存耗尽
Serendisand
marked this pull request as ready for review
August 5, 2026 10:02
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