From 2e905e5bd84134910014b68a75174e81aa395c2e Mon Sep 17 00:00:00 2001
From: pipipi-pikachu <1171051090@qq.com>
Date: Sat, 9 Jan 2021 10:39:06 +0800
Subject: [PATCH] update

---
 .../Toolbar/ElementStylePanel/index.vue       |   3 +
 .../Editor/Toolbar/MultiPositionPanel.vue     | 173 +++++++++++++++++-
 2 files changed, 166 insertions(+), 10 deletions(-)

diff --git a/src/views/Editor/Toolbar/ElementStylePanel/index.vue b/src/views/Editor/Toolbar/ElementStylePanel/index.vue
index 83e698eb..c4f3ad3f 100644
--- a/src/views/Editor/Toolbar/ElementStylePanel/index.vue
+++ b/src/views/Editor/Toolbar/ElementStylePanel/index.vue
@@ -1,5 +1,8 @@
 <template>
   <div class="element-style-panel">
+    <div v-if="!currentPanelComponent">
+      请先选中要编辑的元素
+    </div>
     <component :is="currentPanelComponent"></component>
   </div>
 </template>
diff --git a/src/views/Editor/Toolbar/MultiPositionPanel.vue b/src/views/Editor/Toolbar/MultiPositionPanel.vue
index 02dc0c15..110a0143 100644
--- a/src/views/Editor/Toolbar/MultiPositionPanel.vue
+++ b/src/views/Editor/Toolbar/MultiPositionPanel.vue
@@ -1,28 +1,49 @@
 <template>
   <div class="multi-position-panel">
     <ButtonGroup class="row">
-      <Button style="flex: 1;">左</Button>
-      <Button style="flex: 1;">中</Button>
-      <Button style="flex: 1;">右</Button>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="左对齐">
+        <Button style="flex: 1;" @click="alignActiveElement('left')"><IconFont type="icon-align-left" /></Button>
+      </Tooltip>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="水平居中">
+        <Button style="flex: 1;" @click="alignActiveElement('horizontal')"><IconFont type="icon-align-vertical-center" /></Button>
+      </Tooltip>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="右对齐">
+        <Button style="flex: 1;" @click="alignActiveElement('right')"><IconFont type="icon-align-right" /></Button>
+      </Tooltip>
     </ButtonGroup>
     <ButtonGroup class="row">
-      <Button style="flex: 1;">上</Button>
-      <Button style="flex: 1;">中</Button>
-      <Button style="flex: 1;">下</Button>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="上对齐">
+        <Button style="flex: 1;" @click="alignActiveElement('top')"><IconFont type="icon-align-top" /></Button>
+      </Tooltip>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="垂直居中">
+        <Button style="flex: 1;" @click="alignActiveElement('vertical')"><IconFont type="icon-align-horizontal-center" /></Button>
+      </Tooltip>
+      <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.5" title="下对齐">
+        <Button style="flex: 1;" @click="alignActiveElement('bottom')"><IconFont type="icon-align-bottom" /></Button>
+      </Tooltip>
     </ButtonGroup>
 
     <Divider />
 
     <ButtonGroup class="row">
-      <Button style="flex: 1;">组合</Button>
-      <Button style="flex: 1;">取消组合</Button>
+      <Button :disabled="!canCombine" @click="combineElements()" style="flex: 1;">组合</Button>
+      <Button :disabled="canCombine" @click="uncombineElements()" style="flex: 1;">取消组合</Button>
     </ButtonGroup>
   </div>
 </template>
 
 <script lang="ts">
-import { defineComponent } from 'vue'
-import { Button, Divider } from 'ant-design-vue'
+import { computed, defineComponent, Ref } from 'vue'
+import { useStore } from 'vuex'
+import { MutationTypes, State } from '@/store'
+import { PPTElement, Slide } from '@/types/slides'
+import { ElementAlignCommand, ElementAlignCommands } from '@/types/edit'
+import { getElementListRange } from '@/utils/element'
+import useHistorySnapshot from '@/hooks/useHistorySnapshot'
+import useCombineElement from '@/hooks/useCombineElement'
+
+import { Button, Divider, Tooltip } from 'ant-design-vue'
+import IconFont from '@/components/IconFont'
 
 export default defineComponent({
   name: 'multi-position-panel',
@@ -30,6 +51,138 @@ export default defineComponent({
     Button,
     ButtonGroup: Button.Group,
     Divider,
+    Tooltip,
+    IconFont,
+  },
+  setup() {
+    const store = useStore<State>()
+    const activeElementIdList = computed(() => store.state.activeElementIdList)
+    const activeElementList: Ref<PPTElement[]> = computed(() => store.getters.activeElementList)
+    const currentSlide: Ref<Slide> = computed(() => store.getters.currentSlide)
+
+    const { addHistorySnapshot } = useHistorySnapshot()
+    const { combineElements, uncombineElements } = useCombineElement()
+
+    const canCombine = computed(() => {
+      const firstGroupId = activeElementList.value[0].groupId
+      if(!firstGroupId) return true
+
+      const inSameGroup = activeElementList.value.every(el => (el.groupId && el.groupId) === firstGroupId)
+      return !inSameGroup
+    })
+
+    const alignActiveElement = (command: ElementAlignCommand) => {
+      const { minX, maxX, minY, maxY } = getElementListRange(activeElementList.value)
+      const elementList: PPTElement[] = JSON.parse(JSON.stringify(currentSlide.value.elements))
+
+      // 获取每一个组合的宽高位置
+      const groupElementRangeMap = {}
+      for(const activeElement of activeElementList.value) {
+        if(activeElement.groupId && !groupElementRangeMap[activeElement.groupId]) {
+          const groupElements = activeElementList.value.filter(item => item.groupId === activeElement.groupId)
+          groupElementRangeMap[activeElement.groupId] = getElementListRange(groupElements)
+        }
+      }
+
+      if(command === ElementAlignCommands.LEFT) {
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) element.left = minX
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const offset = range.minX - minX
+              element.left = element.left - offset
+            }
+          }
+        })
+      }
+      else if(command === ElementAlignCommands.RIGHT) {
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) {
+              const elWidth = element.type === 'line' ? Math.max(element.start[0], element.end[0]) : element.width
+              element.left = maxX - elWidth
+            }
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const offset = range.maxX - maxX
+              element.left = element.left - offset
+            }
+          }
+        })
+      }
+      else if(command === ElementAlignCommands.TOP) {
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) element.top = minY
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const offset = range.minY - minY
+              element.top = element.top - offset
+            }
+          }
+        })
+      }
+      else if(command === ElementAlignCommands.BOTTOM) {
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) {
+              const elHeight = element.type === 'line' ? Math.max(element.start[1], element.end[1]) : element.height
+              element.top = maxY - elHeight
+            }
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const offset = range.maxY - maxY
+              element.top = element.top - offset
+            }
+          }
+        })
+      }
+      else if(command === ElementAlignCommands.HORIZONTAL) {
+        const horizontalCenter = (minX + maxX) / 2
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) {
+              const elWidth = element.type === 'line' ? Math.max(element.start[0], element.end[0]) : element.width
+              element.left = horizontalCenter - elWidth / 2
+            }
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const center = (range.maxX + range.minX) / 2
+              const offset = center - horizontalCenter
+              element.left = element.left - offset
+            }
+          }
+        })
+      }
+      else if(command === ElementAlignCommands.VERTICAL) {
+        const verticalCenter = (minY + maxY) / 2
+        elementList.forEach(element => {
+          if(activeElementIdList.value.includes(element.id)) {
+            if(!element.groupId) {
+              const elHeight = element.type === 'line' ? Math.max(element.start[1], element.end[1]) : element.height
+              element.top = verticalCenter - elHeight / 2
+            }
+            else {
+              const range = groupElementRangeMap[element.groupId]
+              const center = (range.maxY + range.minY) / 2
+              const offset = center - verticalCenter
+              element.top = element.top - offset
+            }
+          }
+        })
+      }
+      
+      store.commit(MutationTypes.UPDATE_SLIDE, { elements: elementList })
+      addHistorySnapshot()
+    }
+
+    return {
+      canCombine,
+      combineElements,
+      uncombineElements,
+      alignActiveElement,
+    }
   },
 })
 </script>