resize()

in packages/core/src/models/SnapLine.ts [70:113]

• 44 lines of code
• 20 McCabe index (conditional complexity)

  resize(node: TreeNode, rect: Rect) {
    if (!node || !node?.parent) return
    const parent = node.parent
    const dragNodeRect = node.getValidElementOffsetRect()
    const parentRect = parent.getValidElementOffsetRect()
    const edgeOffset = calcOffsetOfSnapLineSegmentToEdge(this, dragNodeRect)
    const cursorRect = this.helper.cursorDragNodesRect
    const snapEdge = this.snapEdge(rect)
    if (this.direction === 'h') {
      const y = this.start.y - parentRect.y - edgeOffset.y
      switch (this.helper.direction) {
        case 'left-top':
        case 'center-top':
        case 'right-top':
          if (snapEdge !== 'ht') return
          rect.y = y
          rect.height = cursorRect.bottom - y
          break
        case 'left-bottom':
        case 'center-bottom':
        case 'right-bottom':
          if (snapEdge !== 'hb') return
          rect.height = this.start.y - cursorRect.top
          break
      }
    } else {
      const x = this.start.x - parentRect.x - edgeOffset.x
      switch (this.helper.direction) {
        case 'left-top':
        case 'left-bottom':
        case 'left-center':
          if (snapEdge !== 'vl') return
          rect.x = x
          rect.width = cursorRect.right - x
          break
        case 'right-center':
        case 'right-top':
        case 'right-bottom':
          if (snapEdge !== 'vr') return
          rect.width = this.start.x - cursorRect.left
          break
      }
    }
  }