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@@ -83,7 +83,7 @@ import { getImageDataURL } from '@/utils/image'
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import { copyText, readClipboard } from '@/utils/clipboard'
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import { encrypt, decrypt } from '@/utils/crypto'
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-import { getElementRange } from './utils/elementRange'
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+import { getElementRange, getRectRotatedRange } from './utils/elementRange'
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import { getAngleFromCoordinate, getRotateElementPoints, getOppositePoint } from './utils/elementRotate'
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import { lockElement as _lockElement, unlockElement as _unlockElement } from './utils/elementLock'
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import { combineElements as _combineElements, uncombineElements as _uncombineElements } from './utils/elementCombine'
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@@ -280,7 +280,294 @@ export default defineComponent({
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}
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const moveElement = (e: MouseEvent, element: PPTElement) => {
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- console.log(e, element)
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+ if(!activeElementIdList.value.includes(element.elId)) return
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+ let isMouseDown = true
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+
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+ // 可视范围宽高，用于边缘对齐吸附
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+ const edgeWidth = VIEWPORT_SIZE
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+ const edgeHeight = VIEWPORT_SIZE * VIEWPORT_ASPECT_RATIO
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+
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+ const originElementList: PPTElement[] = JSON.parse(JSON.stringify(elementList.value))
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+ const originActiveElementList = originElementList.filter(el => activeElementIdList.value.includes(el.elId))
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+
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+ const sorptionRange = 3
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+ const elOriginLeft = element.left
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+ const elOriginTop = element.top
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+ const elOriginWidth = element.width
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+ const elOriginHeight = ('height' in element && element.height) ? element.height : 0
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+ const elOriginRotate = ('rotate' in element && element.rotate) ? element.rotate : 0
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+ const startPageX = e.pageX
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+ const startPageY = e.pageY
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+
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+ let isMisoperation: boolean | null = null
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+
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+ const isActiveGroupElement = element.elId === activeGroupElementId.value
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+
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+ // 收集对齐参考线
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+ // 包括页面内出被操作元素以外的所有元素在页面内水平和垂直方向的范围和中心位置、页面边界和水平和垂直的中心位置
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+ let horizontalLines: AlignLine[] = []
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+ let verticalLines: AlignLine[] = []
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+
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+ // 元素在页面内水平和垂直方向的范围和中心位置（需要特殊计算线条和被旋转的元素）
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+ for(const el of elementList.value) {
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+ if(el.type === ElementTypes.LINE) continue
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+ if(isActiveGroupElement && el.elId === element.elId) continue
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+ if(!isActiveGroupElement && activeElementIdList.value.includes(el.elId)) continue
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+
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+ let left, top, width, height
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+ if('rotate' in el && el.rotate) {
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+ const { xRange, yRange } = getRectRotatedRange({
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+ left: el.left,
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+ top: el.top,
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+ width: el.width,
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+ height: el.height,
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+ rotate: el.rotate,
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+ })
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+ left = xRange[0]
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+ top = yRange[0]
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+ width = xRange[1] - xRange[0]
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+ height = yRange[1] - yRange[0]
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+ }
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+ else {
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+ left = el.left
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+ top = el.top
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+ width = el.width
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+ height = el.height
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+ }
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+
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+ const right = left + width
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+ const bottom = top + height
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+ const centerX = top + height / 2
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+ const centerY = left + width / 2
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+
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+ const topLine: AlignLine = { value: top, range: [left, right] }
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+ const bottomLine: AlignLine = { value: bottom, range: [left, right] }
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+ const horizontalCenterLine: AlignLine = { value: centerX, range: [left, right] }
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+ const leftLine: AlignLine = { value: left, range: [top, bottom] }
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+ const rightLine: AlignLine = { value: right, range: [top, bottom] }
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+ const verticalCenterLine: AlignLine = { value: centerY, range: [top, bottom] }
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+
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+ horizontalLines.push(topLine, bottomLine, horizontalCenterLine)
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+ verticalLines.push(leftLine, rightLine, verticalCenterLine)
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+ }
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+
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+ // 页面边界、水平和垂直的中心位置
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+ const edgeTopLine: AlignLine = { value: 0, range: [0, edgeWidth] }
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+ const edgeBottomLine: AlignLine = { value: edgeHeight, range: [0, edgeWidth] }
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+ const edgeHorizontalCenterLine: AlignLine = { value: edgeHeight / 2, range: [0, edgeWidth] }
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+ const edgeLeftLine: AlignLine = { value: 0, range: [0, edgeHeight] }
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+ const edgeRightLine: AlignLine = { value: edgeWidth, range: [0, edgeHeight] }
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+ const edgeVerticalCenterLine: AlignLine = { value: edgeWidth / 2, range: [0, edgeHeight] }
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+
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+ horizontalLines.push(edgeTopLine, edgeBottomLine, edgeHorizontalCenterLine)
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+ verticalLines.push(edgeLeftLine, edgeRightLine, edgeVerticalCenterLine)
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+
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+ // 参考线去重
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+ horizontalLines = uniqAlignLines(horizontalLines)
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+ verticalLines = uniqAlignLines(verticalLines)
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+
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+ document.onmousemove = e => {
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+ const currentPageX = e.pageX
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+ const currentPageY = e.pageY
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+
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+ // 对于鼠标第一次滑动距离过小的操作判定为误操作
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+ // 这里仅在误操作标记未被赋值（null，第一次触发移动），以及被标记为误操作时（true，当前处于误操作范围，但可能会脱离该范围转变成正常操作），才会去计算
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+ // 已经被标记为非误操作时（false），不需要再次计算（因为不可能从非误操作转变成误操作）
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+ if(isMisoperation !== false) {
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+ isMisoperation = Math.abs(startPageX - currentPageX) < sorptionRange &&
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+ Math.abs(startPageY - currentPageY) < sorptionRange
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+ }
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+ if( !isMouseDown || isMisoperation ) return
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+
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+ // 鼠标按下后移动的距离
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+ const moveX = (currentPageX - startPageX) / canvasScale.value
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+ const moveY = (currentPageY - startPageY) / canvasScale.value
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+
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+ // 被操作元素需要移动到的位置
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+ let targetLeft = elOriginLeft + moveX
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+ let targetTop = elOriginTop + moveY
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+
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+ // 计算被操作元素在页面中的范围（用于吸附对齐）
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+ // 需要区分计算：多选状态、线条、被旋转的元素
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+ // 注意这里需要用元素的原始信息结合移动信息来计算
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+ let targetMinX: number, targetMaxX: number, targetMinY: number, targetMaxY: number
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+
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+ if(activeElementIdList.value.length === 1 || isActiveGroupElement) {
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+ if(elOriginRotate) {
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+ const { xRange, yRange } = getRectRotatedRange({
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+ left: targetLeft,
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+ top: targetTop,
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+ width: elOriginWidth,
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+ height: elOriginHeight,
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+ rotate: elOriginRotate,
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+ })
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+ targetMinX = xRange[0]
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+ targetMaxX = xRange[1]
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+ targetMinY = yRange[0]
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+ targetMaxY = yRange[1]
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+ }
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+ else if(element.type === 'line') {
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+ targetMinX = targetLeft
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+ targetMaxX = targetLeft + Math.max(element.start[0], element.end[0])
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+ targetMinY = targetTop
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+ targetMaxY = targetTop + Math.max(element.start[1], element.end[1])
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+ }
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+ else {
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+ targetMinX = targetLeft
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+ targetMaxX = targetLeft + elOriginWidth
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+ targetMinY = targetTop
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+ targetMaxY = targetTop + elOriginHeight
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+ }
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+ }
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+ else {
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+ const leftValues = []
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+ const topValues = []
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+ const rightValues = []
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+ const bottomValues = []
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+
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+ for(let i = 0; i < originActiveElementList.length; i++) {
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+ const element = originActiveElementList[i]
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+ const left = element.left + moveX
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+ const top = element.top + moveY
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+ const width = element.width
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+ const height = ('height' in element && element.height) ? element.height : 0
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+ const rotate = ('rotate' in element && element.rotate) ? element.rotate : 0
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+
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+ if('rotate' in element && element.rotate) {
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+ const { xRange, yRange } = getRectRotatedRange({ left, top, width, height, rotate })
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+ leftValues.push(xRange[0])
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+ topValues.push(yRange[0])
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+ rightValues.push(xRange[1])
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+ bottomValues.push(yRange[1])
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+ }
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+ else if(element.type === 'line') {
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+ leftValues.push(left)
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+ topValues.push(top)
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+ rightValues.push(left + Math.max(element.start[0], element.end[0]))
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+ bottomValues.push(top + Math.max(element.start[1], element.end[1]))
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+ }
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+ else {
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+ leftValues.push(left)
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+ topValues.push(top)
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+ rightValues.push(left + width)
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+ bottomValues.push(top + height)
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+ }
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+ }
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+
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+ targetMinX = Math.min(...leftValues)
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+ targetMaxX = Math.max(...rightValues)
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+ targetMinY = Math.min(...topValues)
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+ targetMaxY = Math.max(...bottomValues)
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+ }
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+
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+ const targetCenterX = targetMinX + (targetMaxX - targetMinX) / 2
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+ const targetCenterY = targetMinY + (targetMaxY - targetMinY) / 2
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+
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+ // 根据收集到的参考线，分别执行垂直和水平两个方向的对齐吸附
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+ const _alignmentLines: AlignmentLineProps[] = []
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+ let isVerticalAdsorbed = false
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+ let isHorizontalAdsorbed = false
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+ for(let i = 0; i < horizontalLines.length; i++) {
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+ const { value, range } = horizontalLines[i]
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+ const min = Math.min(...range, targetMinX, targetMaxX)
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+ const max = Math.max(...range, targetMinX, targetMaxX)
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+
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+ if(Math.abs(targetMinY - value) < sorptionRange) {
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+ if(!isHorizontalAdsorbed) {
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+ targetTop = targetTop - (targetMinY - value)
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+ isHorizontalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'horizontal', axis: {x: min - 20, y: value}, length: max - min + 40})
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+ }
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+ if(Math.abs(targetMaxY - value) < sorptionRange) {
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+ if(!isHorizontalAdsorbed) {
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+ targetTop = targetTop - (targetMaxY - value)
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+ isHorizontalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'horizontal', axis: {x: min - 20, y: value}, length: max - min + 40})
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+ }
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+ if(Math.abs(targetCenterY - value) < sorptionRange) {
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+ if(!isHorizontalAdsorbed) {
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+ targetTop = targetTop - (targetCenterY - value)
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+ isHorizontalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'horizontal', axis: {x: min - 20, y: value}, length: max - min + 40})
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+ }
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+ }
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+ for(let i = 0; i < verticalLines.length; i++) {
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+ const { value, range } = verticalLines[i]
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+ const min = Math.min(...range, targetMinY, targetMaxY)
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+ const max = Math.max(...range, targetMinY, targetMaxY)
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+
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+ if(Math.abs(targetMinX - value) < sorptionRange) {
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+ if(!isVerticalAdsorbed) {
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+ targetLeft = targetLeft - (targetMinX - value)
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+ isVerticalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'vertical', axis: {x: value, y: min - 20}, length: max - min + 40})
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+ }
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+ if(Math.abs(targetMaxX - value) < sorptionRange) {
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+ if(!isVerticalAdsorbed) {
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+ targetLeft = targetLeft - (targetMaxX - value)
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+ isVerticalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'vertical', axis: {x: value, y: min - 20}, length: max - min + 40})
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+ }
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+ if(Math.abs(targetCenterX - value) < sorptionRange) {
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+ if(!isVerticalAdsorbed) {
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+ targetLeft = targetLeft - (targetCenterX - value)
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+ isVerticalAdsorbed = true
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+ }
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+ _alignmentLines.push({type: 'vertical', axis: {x: value, y: min - 20}, length: max - min + 40})
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+ }
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+ }
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+ alignmentLines.value = _alignmentLines
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+
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+ // 非多选，或者当前操作的元素时激活的组合元素
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+ if(activeElementIdList.value.length === 1 || isActiveGroupElement) {
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+ elementList.value = elementList.value.map(el => {
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+ return el.elId === element.elId ? { ...el, left: targetLeft, top: targetTop } : el
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+ })
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+ }
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+
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+ // 修改元素位置，如果需要修改位置的元素不是被操作的元素（例如多选下的操作）
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+ // 那么其他非操作元素要移动的位置通过操作元素的移动偏移量计算
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+ else {
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+ const handleElement = elementList.value.find(el => el.elId === element.elId)
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+ if(!handleElement) return
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+
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+ elementList.value = elementList.value.map(el => {
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+ const newEl = el
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+ activeElementIdList.value.includes(el.elId) ? { ...el, left: targetLeft, top: targetTop } : el
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+ if(activeElementIdList.value.includes(el.elId)) {
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+ if(el.elId === element.elId) {
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+ newEl.left = targetLeft
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+ newEl.top = targetTop
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+ }
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+ else {
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+ newEl.left = newEl.left + (targetLeft - handleElement.left)
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+ newEl.top = newEl.top + (targetTop - handleElement.top)
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+ }
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+ }
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+ return newEl
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+ })
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+ }
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+ }
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+
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+ document.onmouseup = e => {
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+ isMouseDown = false
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+ document.onmousemove = null
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+ document.onmouseup = null
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+ alignmentLines.value = []
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+
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+ const currentPageX = e.pageX
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+ const currentPageY = e.pageY
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+
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+ // 对比初始位置，没有实际的位移不更新数据
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+ if(startPageX === currentPageX && startPageY === currentPageY) return
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+
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+ store.commit(MutationTypes.UPDATE_SLIDE, { elements: elementList.value })
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+ }
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}
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const selectElement = (e: MouseEvent, element: PPTElement, canMove = true) => {
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pipipi-pikachu