circle.vue
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<template>
<div :style="circleSize" :class="wrapClasses">
<svg viewBox="0 0 100 100">
<path :d="pathString" :stroke="trailColor" :stroke-width="trailWidth" :fill-opacity="0" :style="trailStyle" />
<path :d="pathString" :stroke-linecap="strokeLinecap" :stroke="strokeColor" :stroke-width="computedStrokeWidth" fill-opacity="0" :style="pathStyle" />
</svg>
<div :class="innerClasses">
<slot></slot>
</div>
</div>
</template>
<script>
import { oneOf } from '../../utils/assist';
const prefixCls = 'ivu-chart-circle';
export default {
name: 'iCircle',
props: {
percent: {
type: Number,
default: 0
},
size: {
type: Number,
default: 120
},
strokeWidth: {
type: Number,
default: 6
},
strokeColor: {
type: String,
default: '#2db7f5'
},
strokeLinecap: {
validator (value) {
return oneOf(value, ['square', 'round']);
},
default: 'round'
},
trailWidth: {
type: Number,
default: 5
},
trailColor: {
type: String,
default: '#eaeef2'
},
dashboard: {
type: Boolean,
default: false
}
},
computed: {
circleSize () {
return {
width: `${this.size}px`,
height: `${this.size}px`
};
},
computedStrokeWidth () {
return this.percent === 0 && this.dashboard ? 0 : this.strokeWidth;
},
radius () {
return 50 - this.strokeWidth / 2;
},
pathString () {
if (this.dashboard) {
return `M 50,50 m 0,${this.radius}
a ${this.radius},${this.radius} 0 1 1 0,-${2 * this.radius}
a ${this.radius},${this.radius} 0 1 1 0,${2 * this.radius}`;
} else {
return `M 50,50 m 0,-${this.radius}
a ${this.radius},${this.radius} 0 1 1 0,${2 * this.radius}
a ${this.radius},${this.radius} 0 1 1 0,-${2 * this.radius}`;
}
},
len () {
return Math.PI * 2 * this.radius;
},
trailStyle () {
let style = {};
if (this.dashboard) {
style = {
'stroke-dasharray': `${this.len - 75}px ${this.len}px`,
'stroke-dashoffset': `-${75 / 2}px`,
'transition': 'stroke-dashoffset .3s ease 0s, stroke-dasharray .3s ease 0s, stroke .3s'
}
}
return style;
},
pathStyle () {
let style = {};
if (this.dashboard) {
style = {
'stroke-dasharray': `${(this.percent / 100) * (this.len - 75)}px ${this.len}px`,
'stroke-dashoffset': `-${75 / 2}px`,
'transition': 'stroke-dashoffset .3s ease 0s, stroke-dasharray .6s ease 0s, stroke .6s, stroke-width .06s ease .6s'
};
} else {
style = {
'stroke-dasharray': `${this.len}px ${this.len}px`,
'stroke-dashoffset': `${((100 - this.percent) / 100 * this.len)}px`,
'transition': 'stroke-dashoffset 0.6s ease 0s, stroke 0.6s ease'
};
}
return style;
},
wrapClasses () {
return `${prefixCls}`;
},
innerClasses () {
return `${prefixCls}-inner`;
}
}
};
</script>