cfc/cfc-frontend/components/FamilyRelationGraph.vue

<template>
  <!-- 1人不渲染 -->
  <view class="family-relation-graph" v-if="members && members.length >= 2">
    <!-- Canvas 连线层 -->
    <canvas
      class="graph-canvas"
      canvas-id="relationGraphCanvas"
      id="relationGraphCanvas"
      type="2d"
      :style="{
        width: canvasWidth + 'px',
        height: canvasHeight + 'px'
      }" />
    <!-- View 节点层 -->
    <view class="graph-nodes">
      <!-- 2-3人: 单行布局 -->
      <template v-if="layoutMode === 'row'">
        <view class="row-layout">
          <view
            v-for="m in displayOrder"
            :key="m.id"
            class="member-node"
            :class="{ 'is-self': m.isSelf, 'is-parent': m.memberType === 'parent' }"
            :style="{ width: m.avatarSize + 'rpx' }"
            :data-member-id="m.id"
            :data-member-type="m.memberType"
            :data-member-nickname="m.nickname"
            @tap="onMemberTap">
            <view
              class="member-avatar"
              :class="{ 'avatar-square': m.memberType === 'parent' }"
              :style="{
                width: m.avatarSize + 'rpx',
                height: m.avatarSize + 'rpx',
                backgroundColor: m.isSelf ? '#FFFFFF' : themeColorRgba,
                borderColor: m.isSelf ? themeColor : 'transparent'
              }">
              <text class="avatar-letter" :style="{ color: m.isSelf ? themeColor : '#4A5568', fontSize: m.avatarSize * 0.45 + 'rpx' }">{{ m.displayName }}</text>
            </view>
            <text class="member-name" :style="{ color: m.isSelf ? themeColor : '#94A3B8', fontWeight: m.isSelf ? 'bold' : 'normal' }">{{ m.nickname }}</text>
          </view>
        </view>
      </template>
      <!-- 4+人: 多行布局 -->
      <template v-else>
        <view class="self-row">
          <view
            class="member-node is-self"
            :style="{ width: selfMember.avatarSize + 'rpx' }"
            :data-member-id="selfMember.id"
            :data-member-type="selfMember.memberType"
            :data-member-nickname="selfMember.nickname"
            @tap="onMemberTap">
            <view
              class="member-avatar"
              :style="{
                width: selfMember.avatarSize + 'rpx',
                height: selfMember.avatarSize + 'rpx',
                backgroundColor: '#FFFFFF',
                borderColor: themeColor
              }">
              <text class="avatar-letter" :style="{ color: themeColor, fontSize: selfMember.avatarSize * 0.45 + 'rpx' }">{{ selfMember.displayName }}</text>
            </view>
            <text class="member-name" :style="{ color: themeColor, fontWeight: 'bold' }">{{ selfMember.nickname }}</text>
          </view>
        </view>
        <view class="others-row">
          <view
            v-for="m in otherMembers"
            :key="m.id"
            class="member-node"
            :class="{ 'is-parent': m.memberType === 'parent' }"
            :style="{ width: m.avatarSize + 'rpx' }"
            :data-member-id="m.id"
            :data-member-type="m.memberType"
            :data-member-nickname="m.nickname"
            @tap="onMemberTap">
            <view
              class="member-avatar"
              :class="{ 'avatar-square': m.memberType === 'parent' }"
              :style="{
                width: m.avatarSize + 'rpx',
                height: m.avatarSize + 'rpx',
                backgroundColor: themeColorRgba
              }">
              <text class="avatar-letter" :style="{ color: '#4A5568', fontSize: m.avatarSize * 0.45 + 'rpx' }">{{ m.displayName }}</text>
            </view>
            <text class="member-name" :style="{ color: '#94A3B8' }">{{ m.nickname }}</text>
          </view>
        </view>
      </template>
    </view>
  </view>
  <!-- 0人空状态 -->
  <view class="family-relation-graph graph-empty" v-else-if="members && members.length === 0">
    <text class="empty-text">暂无家庭成员</text>
  </view>
</template>

<script>
export default {
  name: 'FamilyRelationGraph',
  props: {
    dimensionCode: {
      type: String,
      required: true,
      validator: function(val) {
        return ['body', 'mind', 'action', 'home', 'wisdom'].indexOf(val) !== -1
      }
    },
    selfId: {
      type: [Number, String],
      default: null
    },
    members: {
      type: Array,
      default: function() { return [] }
    },
    energyMap: {
      type: Object,
      default: function() { return {} }
    },
    intimacyMap: {
      type: Object,
      default: function() { return {} }
    },
    interactive: {
      type: Boolean,
      default: true
    }
  },
  data: function() {
    return {
      canvasWidth: 300,
      canvasHeight: 300,
      dpr: 1,
      themeColors: {
        body: '#8D6E63',
        mind: '#FF6B35',
        action: '#4CAF50',
        home: '#5B9BD5',
        wisdom: '#FFD700'
      }
    }
  },
  computed: {
    themeColor: function() {
      return this.themeColors[this.dimensionCode] || '#8D6E63'
    },
    themeColorRgba: function() {
      return this.themeColor + '26'
    },
    layoutMode: function() {
      if (!this.members || this.members.length <= 3) return 'row'
      return 'multi-row'
    },
    selfMember: function() {
      var self = this
      var found = null
      for (var i = 0; i < this.members.length; i++) {
        if (this.members[i].id == this.selfId) {
          found = this.members[i]
          break
        }
      }
      if (!found && this.members.length > 0) {
        found = this.members[0]
      }
      if (!found) return { id: null, nickname: '我', memberType: 'child', isSelf: true, displayName: '我', avatarSize: 120 }
      var energy = this.getEnergy(found.id)
      var size = Math.max(96, 80 + (Math.max(0, Math.min(100, energy)) / 100) * 56)
      return {
        id: found.id,
        nickname: found.nickname || found.name || '我',
        memberType: found.memberType || 'child',
        isSelf: true,
        displayName: (found.nickname && found.nickname.charAt(0)) || (found.name && found.name.charAt(0)) || '我',
        avatarSize: size
      }
    },
    otherMembers: function() {
      var self = this
      return this.members
        .filter(function(m) { return m.id != self.selfId })
        .map(function(m) {
          var energy = self.getEnergy(m.id)
          var size = 64 + (Math.max(0, Math.min(100, energy)) / 100) * 56
          return {
            id: m.id,
            nickname: m.nickname || m.name || '成员',
            memberType: m.memberType || 'child',
            isSelf: false,
            displayName: (m.nickname && m.nickname.charAt(0)) || (m.name && m.name.charAt(0)) || '?',
            avatarSize: size
          }
        })
    },
    displayOrder: function() {
      if (this.layoutMode !== 'row') return []
      var others = this.otherMembers
      if (this.members.length === 2) {
        return [this.selfMember].concat(others)
      }
      if (this.members.length === 3 && others.length >= 2) {
        return [others[0], this.selfMember, others[1]]
      }
      return [this.selfMember].concat(others)
    }
  },
  watch: {
    members: function() { this.scheduleDraw() },
    energyMap: function() { this.scheduleDraw() },
    intimacyMap: function() { this.scheduleDraw() }
  },
  mounted: function() {
    this.dpr = uni.getSystemInfoSync().pixelRatio || 1
    this.scheduleDraw()
  },
  methods: {
    // 获取能量值
    getEnergy: function(memberId) {
      var data = this.energyMap[memberId]
      if (!data) return 0
      var key = this.dimensionCode + 'Score'
      var val = data[key]
      return (typeof val !== 'undefined' && val !== null) ? val : 0
    },

    // 获取亲密度数据
    getIntimacy: function(memberId, key) {
      var data = this.intimacyMap[memberId]
      if (!data) {
        var defaults = { closeness: 75, communication: 50, trust: 85 }
        return defaults[key]
      }
      var val = data[key]
      return (typeof val !== 'undefined' && val !== null) ? val : 75
    },

    // 触发重绘：等 View 布局完成 → 读坐标 → 在 Canvas 画线
    scheduleDraw: function() {
      var self = this
      this.$nextTick(function() {
        self.updateCanvasSize()
        self.$nextTick(function() {
          self.drawLines()
        })
      })
    },

    // 读取 View 节点层尺寸，设置 Canvas 覆盖尺寸
    updateCanvasSize: function() {
      var self = this
      var query = uni.createSelectorQuery().in(this)
      query.select('.graph-nodes').boundingClientRect(function(rect) {
        if (!rect) return
        self.canvasWidth = rect.width
        self.canvasHeight = rect.height
      }).exec()
    },

    // Canvas 连线绘制（type=2d 优先，降级 CanvasContext）
    drawLines: function() {
      var self = this
      if (!this.members || this.members.length < 2) return

      var query = uni.createSelectorQuery().in(this)
      // 查 self 头像、other 头像、容器 三个 rect
      query.select('.is-self .member-avatar').boundingClientRect()
      query.selectAll('.member-node:not(.is-self) .member-avatar').boundingClientRect()
      query.select('.graph-nodes').boundingClientRect()
      query.exec(function(res) {
        if (!res || !res[0]) return

        var selfAvatarRect = res[0]
        var otherAvatarRects = res[1] || []
        var containerRect = res[2]
        if (!selfAvatarRect || otherAvatarRects.length === 0) return

        var containerLeft = containerRect ? containerRect.left : 0
        var containerTop = containerRect ? containerRect.top : 0
        var selfCX = selfAvatarRect.left + selfAvatarRect.width / 2 - containerLeft
        var selfCY = selfAvatarRect.top + selfAvatarRect.height / 2 - containerTop
        var selfR = selfAvatarRect.width / 2

        // Canvas type=2d
        var canvasQuery = uni.createSelectorQuery().in(self)
        canvasQuery.select('#relationGraphCanvas')
          .fields({ node: true, size: true })
          .exec(function(canvasRes) {
            if (!canvasRes || !canvasRes[0] || !canvasRes[0].node) {
              self.drawLinesLegacy(selfCX, selfCY, selfR, otherAvatarRects, containerLeft, containerTop)
              return
            }
            var canvas = canvasRes[0].node
            var ctx = canvas.getContext('2d')

            canvas.width = self.canvasWidth * self.dpr
            canvas.height = self.canvasHeight * self.dpr
            ctx.scale(self.dpr, self.dpr)
            ctx.clearRect(0, 0, self.canvasWidth, self.canvasHeight)

            for (var j = 0; j < otherAvatarRects.length; j++) {
              var rect = otherAvatarRects[j]
              var otherCX = rect.left + rect.width / 2 - containerLeft
              var otherCY = rect.top + rect.height / 2 - containerTop
              var otherR = rect.width / 2

              var otherMember = self.otherMembers[j]
              if (!otherMember) continue

              // 信任度 → 线颜色 (红0°→绿120°)
              var trust = Math.max(0, Math.min(100, self.getIntimacy(otherMember.id, 'trust')))
              var hue = (120 * trust / 100)
              ctx.strokeStyle = 'hsl(' + hue + ', 75%, 45%)'
              ctx.globalAlpha = 0.6

              // 沟通度 → 线粗细 (2~10px)
              var comm = Math.max(0, Math.min(100, self.getIntimacy(otherMember.id, 'communication')))
              ctx.lineWidth = 2 + (comm / 100) * 8

              // 边缘起止点：沿中心向量缩进半径
              var dx = otherCX - selfCX
              var dy = otherCY - selfCY
              var dist = Math.sqrt(dx * dx + dy * dy)
              if (dist < 1) continue
              var ux = dx / dist
              var uy = dy / dist

              ctx.beginPath()
              ctx.moveTo(selfCX + ux * selfR, selfCY + uy * selfR)
              ctx.lineTo(otherCX - ux * otherR, otherCY - uy * otherR)
              ctx.stroke()
            }
            ctx.globalAlpha = 1.0
          })
      })
    },

    // 降级连线（CanvasContext）
    drawLinesLegacy: function(selfCX, selfCY, selfR, otherRects, containerLeft, containerTop) {
      var ctx = uni.createCanvasContext('relationGraphCanvas', this)
      var self = this

      for (var j = 0; j < otherRects.length; j++) {
        var rect = otherRects[j]
        var otherCX = rect.left + rect.width / 2 - containerLeft
        var otherCY = rect.top + rect.height / 2 - containerTop
        var otherR = rect.width / 2

        var otherMember = self.otherMembers[j]
        if (!otherMember) continue

        var trust = Math.max(0, Math.min(100, self.getIntimacy(otherMember.id, 'trust')))
        var hue = (120 * trust / 100)
        ctx.setStrokeStyle('hsl(' + hue + ', 75%, 45%)')
        ctx.globalAlpha = 0.6

        var comm = Math.max(0, Math.min(100, self.getIntimacy(otherMember.id, 'communication')))
        ctx.setLineWidth(2 + (comm / 100) * 8)

        var dx = otherCX - selfCX
        var dy = otherCY - selfCY
        var dist = Math.sqrt(dx * dx + dy * dy)
        if (dist < 1) continue
        var ux = dx / dist
        var uy = dy / dist

        ctx.beginPath()
        ctx.moveTo(selfCX + ux * selfR, selfCY + uy * selfR)
        ctx.lineTo(otherCX - ux * otherR, otherCY - uy * otherR)
        ctx.stroke()
      }
      ctx.draw()
    },

    // View 节点点击事件
    onMemberTap: function(e) {
      if (!this.interactive) return
      var target = e.currentTarget
      if (!target || !target.dataset) return
      var ds = target.dataset
      this.$emit('memberTap', {
        memberId: ds.memberId,
        memberType: ds.memberType,
        nickname: ds.memberNickname
      })
    }
  }
}
</script>

<style scoped>
.family-relation-graph {
  position: relative;
  padding: 24rpx 30rpx;
  margin: 10rpx 0;
  background: #FFFFFF;
  border-radius: 24rpx;
}
.graph-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60rpx 0;
}
.empty-text {
  font-size: 28rpx;
  color: #94A3B8;
}
/* Canvas 层: absolute, 只画线 */
.graph-canvas {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  pointer-events: none;
}
/* View 节点层: relative, flex 布局 */
.graph-nodes {
  position: relative;
  z-index: 2;
}
/* 2-3人单行 */
.row-layout {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-around;
}
/* 4+人多行 */
.self-row {
  display: flex;
  justify-content: center;
  margin-bottom: 16rpx;
}
.others-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
}
/* 成员节点 */
.member-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 12rpx;
  flex-shrink: 0;
}
/* 头像 */
.member-avatar {
  border-radius: 50%;
  border: 2rpx solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}
.member-avatar.avatar-square {
  border-radius: 16rpx;
}
.is-self .member-avatar {
  border-style: solid;
}
.avatar-letter {
  font-weight: bold;
  text-align: center;
}
/* 昵称 */
.member-name {
  font-size: 22rpx;
  margin-top: 6rpx;
  max-width: 120rpx;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}
</style>