元素参考
Layout 元素
1. 结构
interface LayoutClip extends BaseClip {
type: "layout";
direction?: "horizontal" | "vertical";
gap?: number;
padding?: number | [number, number, number, number];
alignItems?: "start" | "center" | "end" | "stretch";
justifyContent?:
| "start"
| "center"
| "end"
| "space-between"
| "space-around";
clip?: boolean;
children: Clip[];
}2. 当前已实现参数
directiongappaddingalignItemsjustifyContentclipchildren
3. children 当前支持的元素类型
videoimagetextrectcirclepolygonaudiolayouttemplate
当前不支持直接作为子节点：
subtitle
4. 最重要的限制
layout.children 不是独立时间线。
这意味着：
- 子元素不会各自按
start调度 - 子元素不会完整执行自己的
duration - 子元素不应该被当成完整时间线 clip 使用
animations / keyframes / transition不应在children中按“顶层 clip 规则”理解
更准确地说，layout 是静态编排容器，不是嵌套场景树。
5. 示例
{
"type": "layout",
"start": 0,
"duration": 6,
"direction": "vertical",
"gap": 24,
"padding": 32,
"transform": {
"x": "50%",
"y": "50%",
"width": "80%",
"height": "60%"
},
"children": [
{
"type": "text",
"start": 0,
"duration": 6,
"text": "Title",
"style": {
"fontSize": 56,
"fill": "#ffffff"
}
},
{
"type": "rect",
"start": 0,
"duration": 6,
"transform": {
"width": "100%",
"height": 120
},
"style": {
"fill": "#1f2937",
"borderRadius": 16
}
}
]
}