mind-map/simple-mind-map/src/layouts/Base.js
2021-06-20 23:03:23 +08:00

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/**
* @Author: 王林
* @Date: 2021-04-12 22:24:30
* @Desc: 布局基类
*/
class Base {
/**
* @Author: 王林
* @Date: 2021-04-12 22:25:16
* @Desc: 构造函数
*/
constructor(renderer) {
// 渲染实例
this.renderer = renderer
// 控制实例
this.mindMap = renderer.mindMap
// 渲染树
this.renderTree = renderer.renderTree
// 主题配置
this.themeConfig = this.mindMap.themeConfig
// 绘图对象
this.draw = this.mindMap.draw
// 根节点
this.root = null
}
/**
* @Author: 王林
* @Date: 2021-04-12 22:39:50
* @Desc: 计算节点位置
*/
doLayout() {
throw new Error('【computed】方法为必要方法需要子类进行重写')
}
/**
* @Author: 王林
* @Date: 2021-04-12 22:41:04
* @Desc: 连线
*/
renderLine() {
throw new Error('【renderLine】方法为必要方法需要子类进行重写')
}
/**
* @Author: 王林
* @Date: 2021-04-12 22:42:08
* @Desc: 定位展开收缩按钮
*/
renderExpandBtn() {
throw new Error('【renderExpandBtn】方法为必要方法需要子类进行重写')
}
/**
* javascript comment
* @Author: 王林25
* @Date: 2021-04-07 11:25:52
* @Desc: 更新子节点属性
*/
updateChildren(children, prop, offset) {
children.forEach((item) => {
item[prop] += offset
if (item.children && item.children.length) {
this.updateChildren(item.children, prop, offset)
}
})
}
}
export default Base