对齐线

.snapline-app {
  display: flex;
  border: 1px solid #f0f0f0;
  padding: 16px 8px;
  font-family: sans-serif;

  .app-side {
    bottom: 0;
    padding: 0 8px;

    .slider-value {
      display: inline-block;
      margin-left: 8px;
      padding: 3px 7px;
      color: #333;
      font-size: 12px;
      line-height: 1.25;
      background: #eee;
      border-radius: 10px;
    }
  }

  .app-content {
    flex: 1;
    margin-right: 8px;
    margin-left: 8px;
    box-shadow: 0 0 10px 1px #e9e9e9;
  }

  .ant-card {
    box-shadow: 0 0 10px 1px #e9e9e9;
  }

  .ant-card-head-title {
    text-align: center;
  }

  .ant-row {
    margin: 16px 0;
    text-align: left;
  }
}

import React from 'react'
import { Checkbox, Slider, Card, Row, Col } from 'antd'

export interface Props {
  onChange: (res: State) => void
}

export interface State {
  tolerance: number
  sharp: boolean
  resizing: boolean
  filter?: string[]
}

export class Settings extends React.Component<Props, State> {
  state: State = {
    tolerance: 10,
    sharp: false,
    resizing: false,
  }

  tryToJSON(val: string) {
    try {
      return JSON.parse(val)
    } catch (error) {
      return val
    }
  }

  notifyChange() {
    this.props.onChange({
      ...this.state,
    })
  }

  onSharpChanged = (e: any) => {
    this.setState({ sharp: e.target.checked }, () => {
      this.notifyChange()
    })
  }

  onResingChanged = (e: any) => {
    this.setState({ resizing: e.target.checked }, () => {
      this.notifyChange()
    })
  }

  onToleranceChanged = (tolerance: number) => {
    this.setState({ tolerance }, () => {
      this.notifyChange()
    })
  }

  onFilterChanged = (e: any) => {
    this.setState(
      {
        filter: e.target.checked ? ['circle'] : undefined,
      },
      () => {
        this.notifyChange()
      },
    )
  }

  render() {
    return (
      <Card
        title="Snapline Settings"
        size="small"
        bordered={false}
        style={{ width: 320 }}
      >
        <Row align="middle">
          <Col span={6}>Tolerance</Col>
          <Col span={2} offset={1}>
            <div className="slider-value">{this.state.tolerance}</div>
          </Col>
        </Row>
        <Row align="middle">
          <Col span={24}>
            <Slider
              min={1}
              max={30}
              step={1}
              value={this.state.tolerance}
              onChange={this.onToleranceChanged}
            />
          </Col>
        </Row>
        <Row align="middle">
          <Col span={24}>
            <Checkbox checked={this.state.sharp} onChange={this.onSharpChanged}>
              Sharp Line
            </Checkbox>
          </Col>
        </Row>
        <Row align="middle">
          <Col span={24}>
            <Checkbox
              checked={this.state.resizing}
              onChange={this.onResingChanged}
            >
              Snap on Resizing
            </Checkbox>
          </Col>
        </Row>
        <Row align="middle">
          <Col span={24}>
            <Checkbox
              checked={this.state.filter != null}
              onChange={this.onFilterChanged}
            >
              Add Filter(only circle)
            </Checkbox>
          </Col>
        </Row>
      </Card>
    )
  }
}