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@ -522,3 +522,19 @@ Range.prototype.move = function(moveFactor) { |
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this.start = newStart; |
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this.end = newEnd; |
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}; |
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/** |
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* Move the range to a new center point |
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* @param {Number} moveTo New center point of the range |
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*/ |
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Range.prototype.moveTo = function(moveTo) { |
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var center = (this.start + this.end) / 2; |
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var diff = center - moveTo; |
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// calculate new start and end
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var newStart = this.start - diff; |
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var newEnd = this.end - diff; |
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this.setRange(newStart, newEnd); |
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} |