update(examples): move examples into src dir

2022-04-04 21:42:48 +02:00
parent 9539d7f263
commit c1594b0071
53 changed files with 34 additions and 35 deletions
@@ -0,0 +1,53 @@
+<script lang="ts" setup>
+import dagre from 'dagre'
+import initialElements from './initial-elements'
+import { VueFlow, Controls, ConnectionMode, Elements, isNode, CoordinateExtent, Position } from '@braks/vue-flow'
+
+const dagreGraph = new dagre.graphlib.Graph()
+dagreGraph.setDefaultEdgeLabel(() => ({}))
+
+const nodeExtent: CoordinateExtent = [
+  [0, -100],
+  [1000, 500],
+]
+
+const elements = ref<Elements>(initialElements)
+
+const onLayout = (direction: string) => {
+  const isHorizontal = direction === 'LR'
+  dagreGraph.setGraph({ rankdir: direction })
+
+  elements.value.forEach((el) => {
+    if (isNode(el)) {
+      dagreGraph.setNode(el.id, { width: 150, height: 50 })
+    } else {
+      dagreGraph.setEdge(el.source, el.target)
+    }
+  })
+
+  dagre.layout(dagreGraph)
+
+  elements.value.forEach((el) => {
+    if (isNode(el)) {
+      const nodeWithPosition = dagreGraph.node(el.id)
+      el.targetPosition = isHorizontal ? Position.Left : Position.Top
+      el.sourcePosition = isHorizontal ? Position.Right : Position.Bottom
+      el.position = { x: nodeWithPosition.x, y: nodeWithPosition.y }
+    }
+  })
+}
+</script>
+<template>
+  <div class="layoutflow">
+    <VueFlow v-model="elements" :node-extent="nodeExtent" :connection-mode="ConnectionMode.Loose" @pane-ready="onLayout('TB')">
+      <Controls />
+    </VueFlow>
+    <div class="controls">
+      <button :style="{ marginRight: 10 }" @click="onLayout('TB')">vertical layout</button>
+      <button @click="onLayout('LR')">horizontal layout</button>
+    </div>
+  </div>
+</template>
+<style>
+@import 'layouting.css';
+</style>