platform/packages/ui/src/components/ProgressCircle.svelte

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// Copyright © 2020 Anticrm Platform Contributors.
// 
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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<script lang="ts">
  import { themeStore } from '@hcengineering/theme'
  import { getPlatformColor } from '../colors'
  import { IconSize } from '../types'

  export let value: number
  export let min: number = 0
  export let max: number = 100
  export let color: number = 5
  export let size: IconSize = 'small'
  export let primary: boolean = false

  if (value > max) value = max
  if (value < min) value = min

  const lenghtC: number = Math.PI * 14 - 1
  $: procC = lenghtC / (max - min)
  $: dashOffset = (value - min) * procC
</script>

<svg class="svg-{size}" fill="none" viewBox="0 0 16 16">
  <circle
    cx={8}
    cy={8}
    r={7}
    class="progress-circle"
    style:stroke={'var(--theme-divider-color)'}
    style:opacity={'.5'}
    style:transform={`rotate(${-78 + ((dashOffset + 1) * 360) / (lenghtC + 1)}deg)`}
    style:stroke-dasharray={lenghtC}
    style:stroke-dashoffset={dashOffset === 0 ? 0 : dashOffset + 3}
  />
  <circle
    cx={8}
    cy={8}
    r={7}
    class="progress-circle"
    style:stroke={primary ? 'var(--primary-bg-color)' : getPlatformColor(color, $themeStore.dark)}
    style:opacity={dashOffset === 0 ? 0 : 1}
    style:transform={'rotate(-82deg)'}
    style:stroke-dasharray={lenghtC}
    style:stroke-dashoffset={dashOffset === 0 ? lenghtC : lenghtC - dashOffset + 1}
  />
</svg>

<style lang="scss">
  .progress-circle {
    stroke-width: 2px;
    stroke-linecap: round;
    transform-origin: center;
    transition: transform 0.6s ease 0s, stroke-dashoffset 0.6s ease 0s, stroke-dasharray 0.6s ease 0s,
      opacity 0.6s ease 0s;
  }
</style>