barchart.go
func (b *BarChart) SetLegendWidth(width int32) {
	atomic.StoreInt32(&b.legendWidth, width)
}
func (b *BarChart) SetLegendWidth(width int32) {
	atomic.StoreInt32(&b.legendWidth, width)
}
func ( b * BarChart ) SetLegendWidth ( width int32 ) { atomic . StoreInt32 ( & b . legendWidth , width ) }
// SetLegendWidth sets new legend panel width
SetLegendWidth sets new legend panel width