Files
vue-flow/src/additional-components/MiniMap/MiniMap.vue
2021-10-20 22:39:54 +02:00

108 lines
3.7 KiB
Vue

<script lang="ts" setup>
import { HTMLAttributes } from 'vue'
import MiniMapNode from './MiniMapNode.vue'
import { getBoundsofRects, getRectOfNodes } from '~/utils'
import { Node } from '~/types'
import { useStore } from '~/composables'
type StringFunc = (node: Node) => string
export interface MiniMapProps extends HTMLAttributes {
nodeColor?: string | StringFunc
nodeStrokeColor?: string | StringFunc
nodeClassName?: string | StringFunc
nodeBorderRadius?: number
nodeStrokeWidth?: number
maskColor?: string
}
const props = withDefaults(defineProps<MiniMapProps>(), {
nodeStrokeColor: '#555',
nodeColor: '#fff',
nodeClassName: '',
nodeBorderRadius: 5,
nodeStrokeWidth: 2,
maskColor: 'rgb(240, 242, 243, 0.7)',
})
const attrs: any = useAttrs()
declare const window: any
const defaultWidth = 200
const defaultHeight = 150
const store = useStore()
const elementWidth = attrs.style?.width ?? defaultWidth
const elementHeight = attrs.style?.height ?? defaultHeight
const nodeColorFunc = props.nodeColor instanceof Function ? props.nodeColor : () => props.nodeColor as StringFunc
const nodeStrokeColorFunc =
props.nodeStrokeColor instanceof Function ? props.nodeStrokeColor : () => props.nodeStrokeColor as StringFunc
const nodeClassNameFunc = props.nodeClassName instanceof Function ? props.nodeClassName : () => props.nodeClassName as StringFunc
const shapeRendering = typeof window === 'undefined' || !!window.chrome ? 'crispEdges' : 'geometricPrecision'
const viewBox = computed(() => {
const bb = getRectOfNodes(store.nodes)
const viewBB = {
x: -store.transform[0] / store.transform[2],
y: -store.transform[1] / store.transform[2],
width: store.dimensions.width / store.transform[2],
height: store.dimensions.height / store.transform[2],
}
const boundingRect = store.nodes && store.nodes.length ? getBoundsofRects(bb, viewBB) : viewBB
const scaledWidth = boundingRect.width / elementWidth
const scaledHeight = boundingRect.height / elementHeight
const viewScale = Math.max(scaledWidth, scaledHeight)
const viewWidth = viewScale * elementWidth
const viewHeight = viewScale * elementHeight
const offset = 5 * viewScale
return {
viewBB,
offset,
x: boundingRect.x - (viewWidth - boundingRect.width) / 2 - offset,
y: boundingRect.y - (viewHeight - boundingRect.height) / 2 - offset,
width: viewWidth + offset * 2,
height: viewHeight + offset * 2,
}
})
</script>
<template>
<svg
:width="elementWidth"
:height="elementHeight"
:viewBox="`${viewBox.x} ${viewBox.y} ${viewBox.width} ${viewBox.height}`"
class="vue-flow__minimap"
>
<slot name="mini-map-nodes" :nodes="store.nodes" :view-box="viewBox">
<template v-for="(node, i) of store.nodes" :key="`mini-map-node-${i}`">
<MiniMapNode
v-if="!node.isHidden"
:x="node.__rf.position.x"
:y="node.__rf.position.y"
:width="node.__rf.width"
:height="node.__rf.height"
:style="node.style"
:class="nodeClassNameFunc(node)"
:color="nodeColorFunc(node)"
:border-radius="props.nodeBorderRadius"
:stroke-color="nodeStrokeColorFunc(node)"
:stroke-width="props.nodeStrokeWidth"
:shape-rendering="shapeRendering"
/>
</template>
</slot>
<path
class="vue-flow__minimap-mask"
:d="`
M${viewBox.x - viewBox.offset},${viewBox.y - viewBox.offset}h${viewBox.width + viewBox.offset * 2}
v${viewBox.height + viewBox.offset * 2}
h${-viewBox.width - viewBox.offset * 2}z
M${viewBox.viewBB.x},${viewBox.viewBB.y}h${viewBox.viewBB.width}v${viewBox.viewBB.height}h${-viewBox.viewBB.width}z`"
:fill="props.maskColor"
fill-rule="evenodd"
/>
</svg>
</template>