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Add logic and prop for changing direction of slider to counter-clockwise #23

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Add logic and prop for changing direction of slider to counter-clockwise #23

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3 changes: 2 additions & 1 deletion demo/App.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,8 @@
:side="300"
:circleWidth="20"
:knobRadius="20"
:stepSize="10"
:stepSize="1"
:counterClockwise="true"
>
</circle-slider>
<div class="value"> {{ sliderValue }} </div>
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21 changes: 17 additions & 4 deletions src/components/CircleSlider.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,11 @@ export default {
type: Number,
required: false,
default: 10
},
counterClockwise: {
type: Boolean,
required: false,
default: false
}
// limitMin: {
// type: Number,
Expand Down Expand Up @@ -156,20 +161,24 @@ export default {
return this.side / 2
},
cpAngle () {
return this.angle + Math.PI / 2
if (this.counterClockwise) return this.angle
return this.angle + Math.PI / 2
},
cpMainCircleStrokeWidth () {
return this.circleWidth || (this.side / 2) / this.circleWidthRel
},
cpPathDirection () {
if (this.counterClockwise) return (this.cpAngle < Math.PI) ? 0 : 1
return (this.cpAngle < 3 / 2 * Math.PI) ? 0 : 1
},
cpPathX () {
if (this.counterClockwise) return this.cpCenter + this.radius * Math.sin(this.cpAngle)
return this.cpCenter + this.radius * Math.cos(this.cpAngle)
},
cpPathY () {
if (this.counterClockwise) return this.cpCenter + this.radius * Math.cos(this.cpAngle)
return this.cpCenter + this.radius * Math.sin(this.cpAngle)
},
},
cpPathStrokeWidth () {
return this.progressWidth || (this.side / 2) / this.progressWidthRel
},
Expand All @@ -185,9 +194,10 @@ export default {
parts.push(this.radius)
parts.push(0)
parts.push(this.cpPathDirection)
parts.push(1)
parts.push( this.counterClockwise ? 0 : 1 )
parts.push(this.cpPathX)
parts.push(this.cpPathY)

return parts.join(' ')
},
cpAngleUnit () {
Expand Down Expand Up @@ -325,7 +335,10 @@ export default {
},
setNewPosition (e) {
const dimensions = this.containerElement.getBoundingClientRect()
this.relativeX = e.clientX - dimensions.left
if (this.counterClockwise) {
this.relativeX = dimensions.right - e.clientX
} else this.relativeX = e.clientX - dimensions.left

this.relativeY = e.clientY - dimensions.top
}
},
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